智能电能信息管理终端

墨水瓶

飞行防控供给站

高温液体凝固试块模具

病床体检辅助架

移动通讯设备（BL65）

射频拉远单元（5G-RU汇聚单元）

射频拉远单元（5G）

机器人（料箱式AGV）

支付盒子

Vehicle-mounted intelligent full-automatic foam concrete construction system

The invention provides a vehicle-mounted intelligent full-automatic foam concrete construction system, and solves the technical problems that in the prior art, equipment is inconvenient to move, the production efficiency is low, the automation degree is low, and quality control is unstable. The system comprises a carrying vehicle, telescopic supporting legs (6) are arranged on the four corners of a vehicle plate (4) of the carrying vehicle, an in-situ steering device (5) is mounted in the middle of the carrying vehicle, and foam concrete construction equipment (3) is carried above the vehicle plate (4); in the foam concrete construction equipment (3), a slurry stirring device, a foaming device, a conveying device, a foam mixing device and a slurry and foam concrete quality detection device are all electrically connected with a control system, the control system is electrically connected with a control panel, and the control panel is arranged in a cab (1). The foam concrete construction ...

Multifunctional support

The utility model discloses a multifunctional support, the support forms a symmetrical structure along the axial direction of a tension screw, two ends of the support are inwardly provided with a top wheel, a total stroke and a top rod in sequence, one end of the top rod is embedded in the top wheel, and the total stroke is fixed on the top rod; the upper end of the tension screw is connected with a fixing sleeve, and the lower end of the tension screw sequentially penetrates through a spring fixing sleeve, a spring and a positioning spring compression cover and then is connected with a lifting ring. And two groups of balance gears are symmetrically arranged on the assembly along the ejector rod. Compared with the prior art, the multifunctional bracket has the following advantages: (1) the multifunctional bracket is flexible in width adjustment and large in bearing pressure, the middle and two ends can bear load, and the middle load can reach up to about 400kg; (2) the bracket is wide in ...

Equipment and method for machining furnace body hole

The invention provides equipment and a method for processing furnace body holes, and relates to equipment for processing furnace body holes, which mainly comprises a base, a drilling and boring seat, a workbench, a drilling and boring head, a boring rod, a drill bit, an integrated controller and the like. The integrated controller is used for controlling displacement of the workbench and the drilling and boring head, and coaxial machining of furnace body holes is achieved; the hole is preprocessed by replacing drill bits with different diameters, and then the boring amount is adjusted by adjusting the eccentric rod of the boring rod to achieve finish machining of the hole. The technical scheme has the beneficial effects that furnace body holes in the two sides of the furnace body are drilled/bored at the same time after welding forming, the machining efficiency is improved, meanwhile, reference errors caused by repeated positioning are avoided, the coaxiality of the holes in the two sides ...

Mining audio equipment and preparation method thereof

The invention discloses mining audio equipment and a preparation method thereof. The mining audio equipment comprises a non-metal shell and an electronic module arranged on the non-metal shell, the outer surface of the non-metal shell is coated with a first anti-radiation coating, and the inner surface of the non-metal shell is coated with a second anti-radiation coating. The anti-radiation coatings are coated on the inner surface and the outer surface of the non-metal shell respectively, so that the electromagnetic radiation absorption capability of the non-metal shell can be effectively improved; internal and external electromagnetic radiation can be further absorbed and counteracted through the shielding cover; therefore, the mining audio equipment has good anti-electromagnetic interference capability; in addition, the mining audio equipment is simple in processing technology and low in technology cost.

Multi-directional percussion drilling tool

The multidirectional percussion drilling tool comprises a shell body, a rotary percussion structure is arranged in the shell body, a support structure is arranged between the rotary percussion structure and a drill bit seat, the support structure comprises a spiral support and a wedge-shaped support, and a first wedge-shaped block is arranged at the bottom end of the spiral support; a first wedge-shaped supporting surface and a second wedge-shaped supporting surface are respectively arranged on two circumferential side walls of the first wedge-shaped block; a second wedge-shaped block is arranged at the top end of the wedge-shaped support. The two circumferential side walls of the second wedge-shaped block are a third wedge-shaped supporting face and a fourth wedge-shaped supporting face respectively. The spiral support can rotate along with the throttling supporting body so that the first wedge-shaped supporting face can abut against the third wedge-shaped supporting face, and the spiral ...

Dual-network-based remote sensing image classification model sample incremental learning method

The invention discloses a dual-network-based remote sensing image classification model sample incremental learning method, which belongs to the field of data identification, and comprises the following steps: training a classification model by using D0 to obtain a classification model M0 for identifying N remote sensing image categories; constructing a data stream D1-Dt of sample incremental learning, wherein a category set of training samples in the Dt is the same as that of the D0; the tth incremental learning process comprises the steps that a dual-network model is constructed, the dual-network model comprises a first network model Mt1 and a second network model Mt2, knowledge distillation is adopted between the Mt1 and a model Mt-1 obtained through last learning and is used for maintaining old knowledge contained in output of the Mt-1 and relieving the knowledge forgetting problem, the Mt2 takes output obtained by learning Dt as a learning target of the Mt1, and the Mt1 is used for ...

End-cloud cooperative positioning method, terminal device and edge node

The embodiment of the invention discloses an end-cloud cooperative positioning method, terminal equipment and an edge node, which are used for a network positioning system to flexibly distribute tasks executed by the terminal equipment and the edge node. The method comprises the steps that the terminal equipment sends a transmission performance parameter and a computing power parameter to the edge node, the transmission performance parameter indicates the data transmission capacity of the terminal equipment and the edge node, and the computing power parameter indicates the computing capacity of the terminal equipment; the terminal device receives task information sent by the edge node, the task information indicates the terminal device to execute a target task, and the target task is a task that the edge node allocates an assignable task to the terminal device according to the transmission performance parameter and the computing power parameter; and the terminal equipment determines the ...

MaxEnt model-based tobacco global suitable-for-growth region prediction method

The invention provides a tobacco global suitable area prediction method based on a MaxEnt model, and belongs to the technical field of tobacco suitable area prediction based on the MaxEnt model.The tobacco global suitable area prediction method comprises the following steps that tobacco geographical distribution data are collected and subjected to sparse processing, and a tobacco geographical distribution data set is obtained; all bioclimate variables under global current and future climate conditions are obtained, and available bioclimate variables are analyzed and screened out; importing the tobacco geographical distribution data set and the available bioclimate variables into a tobacco suitable-for-growth region MaxEnt model and predicting, and outputting a prediction result; performing accuracy evaluation on the prediction result, if the accuracy is high, executing the next step, and if the accuracy is low, returning to the second step; generating a tobacco global suitable-for-growth ...

Method and system for realizing synchronization of Chinese data in Oracle database

The invention discloses a method and a system for realizing Chinese data synchronization of an Oracle database, which belong to the technical field of database synchronization, and are characterized in that based on character conversion logic, Chinese in a US7ASCII (American Standard Code for Information Interchange) coding mode is extracted as a hexadecimal ASCII character; converting the data into a standard transmission format, and transmitting data extracted by oracle to a storage component server by means of message middleware; after receiving the data transmitted by the acquisition end, the storage component converts the ASCII code into a Chinese code matched with a target database according to the code of a Chinese character set of the target database; therefore, the synchronization of the Oracle database is realized. According to the method, the Chinese data can be normally synchronized to the storage end database without setting a character set of an acquisition end server, and ...

Water-based high-adhesion coating and preparation method thereof

The invention discloses a water-based high-adhesion coating and a preparation method thereof, and relates to the field of coatings, and the water-based high-adhesion coating is prepared from the following raw materials by weight: 40-60 parts of water-based polyurethane; 20-40 parts of a water-borne epoxy resin emulsion; 2-3 parts of a water-based thickening agent; 2 to 4 parts of montmorillonite; 3 to 5 parts of zinc magnesium aluminum hydrotalcite; 1-2 parts of an auxiliary agent; 12 to 17 parts of color paste; and 25 to 30 parts of water. The paint has the effect of improving the adhesiveness of the paint on the surface of the toy.

Electric double-packing-cup single-layer sealing instrument for high-precision flow measurement of intelligent layered injection well

The invention discloses an intelligent electric double-leather-cup single-layer sealing instrument for high-precision flow measurement of a layered injection well. The problems that an existing instrument for measuring the single-layer injection rate of the injection well is large in measuring result error and low in well logging time efficiency are mainly solved. The sealing instrument is characterized in that a middle flow channel sealing plug (12) is arranged in the sealing instrument shell (18), an upper sealing leather cup assembly (13) and a lower sealing leather cup assembly (11) are arranged outside the sealing instrument shell (18), and a liquid outlet (25) is formed in the portion, between the upper sealing leather cup assembly (13) and the lower sealing leather cup assembly (11), of the sealing instrument shell (18); a push rod (27) is arranged in the middle flow channel sealing plug (12), and the upper sealing leather cup assembly (13) and the lower sealing leather cup assembly ...

Dust removal device in coal gangue hollow brick manufacturing

The dust removal device comprises a dust removal box, a conveying mechanism and a through hole dust removal mechanism, the conveying mechanism is arranged in the dust removal box in a penetrating mode through material openings in the two sides of the dust removal box, at least two fans are fixedly installed at the top of the inner side of the dust removal box, and the through hole dust removal mechanism is arranged in the dust removal box in an up-down moving mode. The through hole dust removal mechanism is located below the conveying mechanism, when the hollow bricks move to a specific station located over the through hole dust removal mechanism, the conveying mechanism stops running, and the through hole dust removal mechanism moves upwards to penetrate through the conveying mechanism to reach through holes of the hollow bricks, so that through hole cleaning of the hollow bricks is achieved; the through hole dust removal mechanism comprises a support, an air bellow, a hollow shaft, an ...

High-rigidity carbon fiber supporting frame, preparation method and preparation mold of high-rigidity carbon fiber supporting frame

The invention provides a high-rigidity carbon fiber supporting frame, a preparation method and a preparation mold of the high-rigidity carbon fiber supporting frame, and belongs to the technical field of high-performance resin-based composite materials. The problems that a closed supporting ring rectangular section mold is large in design forming difficulty, the requirement for mold shape and position precision is high, bubbles are generated between layers when prepreg is laid, and a series of forming technologies such as cavities in fillet areas when the mold is split and spliced together are complex are solved. The carbon fiber composite material frame is divided into two parts, namely a composite material I-beam reinforcing rib and a large-size skin, the composite material I-beam reinforcing rib and the large-size skin are integrally formed and jointly cured, the I-beam reinforcing rib is integrally formed by adopting prepreg, and demolding and processing are performed after curing; ...

SAFE AND ENERGY-SAVING HEAVY OBJECT VERTICAL MOVING APPARATUS

A safe and energy-saving heavy object vertical moving apparatus, comprising: a compartment body (10); a gravity sensing device (20), used for detecting the current weight of the compartment body; an automatic counterweight control board (30), connected to the gravity sensing device and used for outputting a counterweight control signal according to a gravity signal transmitted by the gravity sensing device; and an automatic counterweight device (40), connected to the automatic counterweight control board and used for carrying out automatic counterweight according to the received counterweight control signal to enable the weight of a counterweight and the current weight of the compartment body to achieve dynamic balance. According to the apparatus, counterweight adjustment is automatically carried out according to the detected current weight of the compartment body, and dynamic balance between the compartment body and the automatic counterweight device is achieved; the structure is simple ...

USER PAIRING PROCESSING METHOD, DEVICE AND BASE STATION

Disclosed are a user pairing processing method, device and base station, the method comprising: receiving a signal reported by a user equipment (UE) for generating a channel matrix H; generating the channel matrix H of the UE according to the received signal; generating, according to the generated H, an air separation information list for identifying a relatedness between UEs; and determining user pairs according to the generated air separation information list. The present invention solves the problems in the related art of interference error, low pairing capacity and high complexity when a user utilizes MU-MIMO for pairing, thus simplifying user pairing and improving MU-MIMO system capacity.

METHOD FOR PREPARING LOW-SUBSTITUTED ACETYLATED NANOCELLULOSE BY ONE-POT METHOD

The invention discloses a method for preparing low-substituted acetylated nanocellulose by one-pot synthesis. The method mainly comprises operations including pretreatment of raw materials, an esterification reaction, a termination reaction, dialysis, freeze drying, etc. The invention starts from relatively simple and easily available raw materials, and can further synthesize acetylated nanocellulose with a degree of substitution of 0.1-0.3 by controlling the ratio of microcrystalline cellulose to an acetylating reagent without intermediate separation, and the raw materials used are all industrial products, cheap and easily available, and simple and reliable. Since acetylated nanocellulose has high strength, large specific surface area, good biocompatibility and degradability, it has great potential applications in fields of polymer reinforcing fillers, pharmaceutical packaging, food additives, and cosmetics.

DATA TRANSMISSION METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

Embodiments of the present application relate to the field of Internet of Things communications, and provide a data transmission method, device and system, and a storage medium. The method comprises: determining a first parameter, a second parameter, a first gap threshold, and a second gap threshold; determining whether there is a gap in the transmission of a downlink control channel or not according to the first parameter and the first gap threshold; sending downlink control information by means of the downlink control channel according to the determining result; determining whether there is a gap in the transmission of a downlink data channel or not according to the second parameter and the second gap threshold; sending a transport block by means of the downlink data channel according to the determining result. The first and second parameters are different, and the first and second gap thresholds are the same; or the first and second parameters are the same, and the first and second gap ...

CHANNEL QUALITY MEASUREMENT METHOD AND APPARATUS

The present application provides a channel quality measurement method and apparatus. Said method comprises: a network device sending to a terminal device configuration information, the configuration information being used to configure a downlink carrier set; the terminal device determining from the downlink carrier set a first downlink carrier; and the terminal device sending, to the network device, a random access procedure message three (Msg3), the random access procedure Msg3 including first information, the first information including information used to indicate the channel quality of the first downlink carrier, the channel quality being used to provide the network device with information concerning a first repetition level, the first repetition level being a minimum repetition level required when transmission of a downlink channel according to a preset transmission parameter satisfies a preset block error rate. The channel quality measurement method in the embodiments of the present ...

DIAPHRAGM AND ELECTROACOUSTIC TRANSDUCER

Embodiments of the present invention provide a diaphragm and an electroacoustic transducer. The diaphragm is rectangular and comprises a middle part and a folding ring part surrounding the periphery of the middle part. The folding ring part comprises two opposite first side parts, two opposite second side parts, and arc-shaped corner parts located between the first side parts and the second side parts; the arc-shaped corner parts form corner areas together with the ends of the first side parts and the ends of the second side parts which are connected to the arc-shaped corner parts; each corner area of the folding ring part is provided with a first pattern group and a second pattern group which are adjacent to each other; each of the first pattern group and the second pattern group comprises a plurality of single patterns; the plurality of single patterns of the first pattern group is provided to diverge from the outer side to the inner side of the folding ring part, and the plurality of ...

COMMUNICATION METHOD AND APPARATUS

The embodiments of the present application provide a communication method and apparatus. Said method comprises: a network device sending DCI to a terminal device, said DCI being used to indicate retransmission of a message 3 in a random access process, and said DCI comprising a first indication; the value of the first indication, when falling within a first value range, being used to indicate that the retransmitted message 3 is different from the message 3 that has been transmitted by the terminal device in the random access process, and the scheduling delay of the retransmitted message 3 being a first delay; the value of the first indication, when falling within a second value range, being used to indicate that the retransmitted message 3 is the same as the message 3 that has been transmitted by the terminal device in the random access process, and the scheduling delay of the retransmitted message 3 being a second delay; the first delay being greater than the second delay; and the network ...

WIRELESS COMMUNICATION MODULE

The present invention discloses a wireless communication module which includes a printed circuit board (PCB) (1). Functional elements (21) are set on the first sidepiece (2) of the PCB (1). Functional pin pads (31) and grounded heat-dissipated pads (32) are set on the second sidepiece (3) of the PCB (1). The functional pin pads (31) and grounded heat-dissipated pads (32) are surface-mounted on corresponding pads of a main board and fixedly welded by surface welding process. A radio frequency access device (5) is also set on the PCB (1). To enable transmission of a radio frequency signal, the radio frequency access device (5) is respectively connected with a radio frequency device and an antenna which is set on the main board. According to the present invention, the size of the module is effectively reduced, its surface-mounting is more convenient, and its cost is cheap. Furthermore, the radio frequency access device (5) has two modes. One mode is a radio frequency connector (6), and this ...

POWDER SIEVING DEVICE FOR NDFEB PERMANENT MAGNET PROCESSING

A powder sieving device for NdFeB permanent magnet processing, comprising a box (1), a powder sieving mechanism (4), and a collection mechanism (9). Support legs (2) of the box (1) are fixedly connected to two sides of the bottom of the box (1). The top of the box (1) is provided with a feed port (3). The top and bottom of the left side of the box (1) are provided with a first through hole (5) and a second discharge hole (8) respectively. The top and bottom of the right side of the box (1) are provided with a first discharge hole (6) and a second through hole (7) respectively. The inner cavity of the box (1) is provided with the powder sieving mechanism (4). The left side of the left support leg (2) is provided with the collection mechanism (9). By using the powder sieving mechanism (4), it is convenient to vibrate NdFeB powder during sieving, and it is convenient to remove particles larger and smaller than target NdFeB powder, thereby improving the purity of the NdFeB powder, so that the ...

ANTI-ICE AND ANTI-SNOW FLOW GUIDING DEVICE FOR THE BOGIE AREA OF HIGH SPEED MOTOR TRAIN SET

An anti-ice and anti-snow flow guiding device for a high speed motor train set is characterized by comprising an end plate, cross beams, upright posts, longitudinal beams, arc plates, a left cover plate and a right cover plate. The two cross beams, the two upright posts and the three longitudinal beams are connected to form a frame. The two upright posts are arranged at the middle of the two cross beams and correspond to the two ends of the middle longitudinal beam. The end plate is connected to the side of one cross beam. The arc plates are connected with the cross beams. The left cover plate and the right cover plate are each connected to a cross beam. By means of an end plate, upright posts, and left and right cover plates mounted under the end of an aluminium frame structure, and by means of the shape of the arc plates, the present utility model improves the flow field distribution state of the bogie area, preventing the air flow from blowing ice and snow into the middle and the upper ...

MEDIUM CONVEYANCE CONTROL METHOD AND DEVICE AND PAPER FEEDING TYPE SCANNING DEVICE

Disclosed are a medium conveyance control method and device and a paper feeding type scanning device. The medium conveyance control method is used for moving a conveyed medium in a conveyance channel of a medium conveyance device, and the medium conveyance device comprises a medium conveyance mechanism (13), a main power supply (111) and a backup power supply (112). The method comprises: judging whether the main power supply (111) is abnormal or not; and if the main power supply (111) is abnormal, supplying power to the medium conveyance mechanism (13) through the backup power supply (112) and controlling the medium conveyance mechanism (13) to convey the medium while power is supplied from the backup power supply (112). Through the medium conveyance control method, the problem is solved that in the medium conveyance device, the medium remaining in the conveyance channel cannot be taken out conveniently while the power supply becomes abnormal.

METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION

Provided in embodiments of the present application are a method and apparatus for transmitting uplink control information (UCI). When a first channel for transmitting high-priority UCI and a second channel for transmitting low-priority UCI overlap in a time domain, a terminal device determines to multiplex the high-priority UCI and the low-priority UCI on a third channel so as to send to a network device. The high-priority UCI is first mapped to an RE in a symbol which is closer to a DMRS symbol in the third channel and then mapped to an RE of a symbol which is farther from the DMRS symbol in the third channel, thereby improving the transmission reliability of the high-priority UCI.

扭力扳手

进气格栅（T360-越野）

声卡音响

回柱绞车

智能电话手表（LT51）

水龙头（SH19）

推力杆支架

伴手礼外包装盒

No girder hangs down flat -bed

... 本实用新型提供一种无大梁低平板半挂车，包括车架，汽车悬架系统，箱体；车架包括两边梁，多根横梁，车架为边梁式凹梁车架，边梁为槽型钢或者工型钢，边梁位于横梁的两端部，横梁固定在两边边梁的下翼板上，车架的凹梁区域采用单层交叉桁架结构，凹梁区域的上部固定加装承重梁，承重梁与下部的单层交叉桁架相衔接。本实用新型设计简单合理，在实现增加车身容积率、降低半挂车的自重的同时不影响车架自身的强度。 ...

Entrance guard's device and old man monitor system

... 本实用新型公开了种门禁装置以及老人监护系统，所述门禁装置包括壳体、设于壳体内的主控模块、与主控模块的电源端电连接的电源模块、与主控模块的第数据传输端子电连接的RFID模块、与主控模块的第二数据传输端子电连接的短距离无线发送模块、与主控模块的按键信号输入端子电连接的按键模块、与主控模块的门禁驱动信号输出端子电连接的门禁驱动模块。所述老人监护系统包括设于房屋主门上的门禁装置以及与所述门禁装置短距离无线通讯连接的智能拐杖。通过设置在门禁上的功能按键代表老人外出的目的地位置，每当个功能按键被按下后，则控制门禁驱动模块动作以打开门禁锁，以此来获取老人外出的目的地。 ...

Foundation construction technology based on karst cave area

The invention provides a foundation construction process based on a karst cave area, and belongs to the technical field of foundation construction, and the foundation construction process comprises the following steps: S1, carrying out advanced drilling operation on a construction foundation range, determining a karst cave structure in the construction foundation range, and determining positions of a soil cave and a shallow karst cave; s2, modeling a construction foundation by combining a karst cave structure, a soil cave and a shallow karst cave structure, and calculating to obtain structural data of a raft and a pipe pile in the used pile valve foundation; s3, grouting construction is conducted on the soil cave and the shallow karst cave; s4, a pipe pile is constructed at the construction foundation, and a static load test is conducted; and S5, a raft is constructed, and the raft is connected with the pipe piles. According to the method, the influence of the karst cave on foundation construction ...

OFDM (Orthogonal Frequency Division Multiplexing) channel estimation method adopting pre-activated residual unit and super-resolution network

The invention relates to the technical field of communication, in particular to an OFDM (Orthogonal Frequency Division Multiplexing) channel estimation method adopting a pre-activated residual unit and a super-resolution network. Firstly, OFDM system channel estimation is carried out by adopting a super-resolution network PResNet with fewer convolution filters, a channel matrix obtained at a pilot frequency by adopting a least square channel estimation method is regarded as a pixel point on a low-resolution image, and then a mapping relation in the channel matrix is learned by using the proposed super-resolution network, so that the channel estimation of the OFDM system is realized. And finally, a high-resolution image, namely an accurate and complete channel matrix, is obtained through the interpolation layer. In addition, channel estimation is carried out on a super-resolution network FullPResNet combining a pre-activated residual unit and dense connection, the dense connection is applied ...

Hot runner glue feeding device for plastic product injection molding

The invention relates to a hot runner glue feeding device for plastic product injection molding, and belongs to the technical field of injection molds. Comprising a hot nozzle, the hot nozzle comprises a hollow hot nozzle body, the periphery of the hot nozzle body is surrounded by a heating ring for heating the hot nozzle body, the interior of the hot nozzle body is connected with a hollow heat conduction pipe, and an outlet of the heat conduction pipe extends towards the outlet direction of the hot nozzle body; the temperature controller comprises a cooling water jacket surrounding the periphery of the hot nozzle, a heat conduction insert surrounds the periphery of the cooling water jacket, and a temperature control cavity for controlling the temperature of an outlet of the hot nozzle is formed between the cooling water jacket and the heat conduction insert. According to the hot runner glue feeding device, when cold materials are generated on the surface of a product at the front end of ...

Coal piling and taking tracking method and device based on European warehouse and electronic equipment

The invention relates to a coal piling and taking tracking method and device based on an European warehouse and electronic equipment. According to the specific scheme, the method comprises the following steps of: respectively acquiring a bunker entering coal quantity variable quantity, a bunker exiting coal quantity variable quantity and material level height change data of an European bunker in a first preset time period, and a furnace entering coal quantity variable quantity in a second preset time period; determining a first average coal storage density based on the coal in-bunker amount variation, the coal out-bunker amount variation and the material level height variation data; determining a second average coal storage density based on the bunker entering coal quantity variation, the furnace entering coal quantity variation and the material level height variation data; determining a comprehensive average coal storage density based on the first average coal storage density, the second ...

Monitoring and evaluating method and system for energy storage frequency modulation of unit

The invention relates to the technical field of energy storage frequency modulation, and provides a monitoring evaluation method and system for energy storage frequency modulation of a unit, and the method comprises the steps: obtaining a target generator set; performing real-time operation data acquisition on the target generator set to obtain a set operation data set; modeling by using the unit operation data set, and outputting a first unit model; an energy storage parameter set of an energy storage device is obtained, and the energy storage device is connected with the target generator set; performing data monitoring on the power grid of the target generator set to obtain a power grid frequency monitoring data set; based on the first unit model, performing energy storage frequency modulation risk assessment on the power grid frequency monitoring data set and the energy storage parameter set to obtain a first frequency modulation risk coefficient; and generating first safety early warning ...

Intelligent analysis and alarm system for power supply indexes

The invention relates to the technical field of data analysis, in particular to an intelligent analysis and alarm system for power supply indexes, and the system comprises a data collection module which is used for obtaining power supply index data; the preprocessing module is used for preprocessing the acquired power supply index data; the intelligent mining module is used for mining abnormal power supply index data of the preprocessed power supply index data based on a data analysis algorithm; the anomaly analysis module is used for carrying out anomaly analysis on the acquired abnormal power supply index data based on a Bayesian algorithm; and the abnormity alarm module is used for giving an alarm to the control center according to the abnormity analysis result. The power supply index data is mined through the data analysis algorithm, the classification effect of the power supply index data is ensured through the rough set processing mode, the accuracy and execution efficiency of data ...

Metal plate strip surface scrubbing experiment system

The invention relates to a metal plate strip surface scrubbing experiment system which comprises a conveying line, a plate fixing device, a rolling brush scrubbing mechanism, a first jet flow flushing mechanism, a second jet flow flushing mechanism and a cleaning liquid supply system. The rolling brush brushing mechanism is assembled on the support through the lifting device, the first jet flushing mechanism and the second jet flushing mechanism are distributed on the front side and the rear side of the rolling brush brushing mechanism respectively, the plate fixing device is installed on the upper portion of the conveying line, and the upper end of the plate fixing device is used for installing a metal plate. The metal plate is driven to pass through the lower portions of the rolling brush brushing mechanism, the first jet flow flushing mechanism and the second jet flow flushing mechanism, and the cleaning liquid supply system is connected with the first jet flow flushing mechanism and ...

Wind power frequency modulation comprehensive inertia control method and system, electronic equipment and storage medium

The invention discloses a wind power frequency modulation comprehensive inertia control method and system, electronic equipment and a storage medium. The method comprises the following steps: establishing a comprehensive inertia control model; obtaining an optimal comprehensive inertia control parameter by using a mouse swarm optimization algorithm and generating a data set; extracting features of the data set by a contraction automatic encoder; and the deep neural network learns data features to generate comprehensive inertia control parameters for different wind power scenes, and inputs the comprehensive inertia control parameters into the comprehensive inertia control model to obtain a wind power frequency modulation comprehensive inertia control scheme. According to the method, the optimal wind power frequency modulation comprehensive inertia control scheme under the current system can be quickly and accurately provided when the power of the power system is unbalanced, the influence ...

Construction method, system and equipment of rule and regulation knowledge graph and medium

The invention relates to the technical field of knowledge graph construction, in particular to a rule and regulation knowledge graph construction method and system, equipment and a medium. The method comprises the following steps: firstly, performing preliminary analysis on rules and regulations to construct a knowledge graph mode layer; secondly, reading the content of the pre-processed rule and regulation file, and analyzing the read file content according to the format of the read content of the rule and regulation file; then, entity node information, entity node attribute information and node relation information are extracted from the stored specific format data under the constraint of a mode layer; and finally, all the obtained entity nodes and relation information are stored in a graph database Neo4j to construct a rule and regulation knowledge graph, and the graph is used for rule and regulation query, so that the intelligence and automation of the rule and regulation file management ...

Method and device for constructing right-angle and triangular window function and filter

The invention discloses a method and device for constructing a right-angled triangular window function and a filter, and the method comprises the steps: obtaining a unit step signal, carrying out the delay integration processing and signal addition and subtraction processing of the unit step signal through a signal processor, obtaining a subtractor signal, and constructing the right-angled triangular window function according to the subtractor signal; wherein the signal processor comprises a first delayer, a first integrator, a second delayer, a two-input summator and a two-input subtracter; and the construction device of the right-angled triangular window function can be connected in series with the second integrator to obtain a filter, and signal filtering is performed through the filter. According to the embodiment of the invention, an exponential tracking filtering mechanism breaking through a first-order inertial filter is realized, and the filtering performance and effect are improved ...

Compact direct-current power supply for subway emergency traction

The invention discloses a compact direct-current power supply for subway emergency traction, which comprises a gate drive board, a resistance voltage-dividing board, a controller, an inductor, a current sensor, a module power supply, a capacitor and a discharge resistor, and is characterized in that the gate drive board is connected with the inductor, and the current sensor is also connected with the inductor; the compact direct-current power supply for subway emergency traction is provided with two paths of staggered boost parallel circuits. The compact direct-current power supply for subway emergency traction is a 110V/500V DCDC converter, by arranging two paths of staggered boost parallel circuits, the change from 110V voltage to 500V voltage is realized with a compact volume, and the purposes of low cost, small volume, light weight and capability of realizing emergency traction are achieved.

Magnesia carbon brick forming equipment

The invention relates to the technical field of magnesia carbon brick manufacturing, in particular to magnesia carbon brick forming equipment which comprises a cylinder body, a sealing cover, a connecting shaft, a tension spring and a brick body mold, a plunger is arranged in the cylinder body in a sliding fit mode, first air gaps are formed in the two sides of the plunger, and a pressing plate is fixedly connected to the bottom of the plunger; the sealing cover is fixedly connected to the end face of the cylinder. The connecting shaft is rotatably mounted on the plunger and is in sliding fit with the sealing cover; one end of the tension spring is fixedly connected to the sealing cover, and the other end is fixedly connected to the plunger; second air gaps are formed in the two sides of a die cavity of the brick body die, the plunger and the pressing plate are arranged in the die cavity of the brick body die in a sliding fit mode, in the magnesia carbon brick punch forming process, the ...

System and method for reducing concentration of carbon monoxide in sintering flue gas

The invention relates to a system and method for reducing the concentration of carbon monoxide in sintering flue gas, the system comprises a gas inlet pipeline connected with a flue gas discharge port, an adsorption cavity is installed on the gas inlet pipeline, the upper end of the adsorption cavity is connected with a gas outlet pipeline, the gas outlet pipeline is provided with a first ionization treatment bin, and the outlet end of the first ionization treatment bin is fixedly connected with a combustion bin; a gas guide pipe is fixed to the upper end of the combustion bin, the upper end of the gas guide pipe is fixedly connected with a buffering bin, the outlet end of the buffering bin is connected with a first treatment bin through a connecting pipeline, the outlet end of the first treatment bin is connected with the inlet end of a second treatment bin, and the outlet end of the second treatment bin is connected with the inlet end of a cyclone centrifugal machine. The outlet end of ...

DATA TRANSMISSION METHOD, DEVICE AND SYSTEM

A data transmission method, device and system, which can implement the compatibility of an NB-IoT system with TDD technology in an LTE system, and improve the utilization rate of a spectrum resource for data transmission between a base station and a UE. The specific solution comprises: a base station sends an NPSS to a UE by using first sub-frames in a first radio frame and a second radio frame, the first radio frame and the second radio frame being continuous, and the first radio frame and the second radio frame using TDD uplink and downlink sub-frame configurations; the base station sends an NPBCH to the UE by using second sub-frames in the first radio frame and the second radio frame; the base station sends an NSSS to the UE by using a third sub-frame in the first radio frame; the base station sends a SIB1-NB to the UE by using a third sub-frame in the second radio frame.

DATA TRANSMISSION METHOD, AND COMMUNICATION DEVICE

Provided are a data transmission method, and a communication device, which relate to the technical field of communications and can reduce the complexity overheads when a base station receives data. The method comprises: receiving information of the number of repetitions R1 corresponding to Tmax, wherein Tmax is the size of the maximum transmission block allowed for data transmission; determining a loop parameter L according to R1, the loop parameter L indicating that transmission blocks used for data transmission are mapped to a plurality of time units, and the content carried on each of the plurality of time units being repeated on a consecutive L time units, wherein the size of the transmission block used for data transmission is Ts, and Ts < Tmax; and transmitting the data according to the loop parameter L.

TERMINAL AND TERMINAL UNLOCKING METHOD

A terminal and a terminal unlocking method, the terminal (10) comprising: a camera (101) combined with any button of the terminal, a control unit (102) and an image matching unit (103), wherein when the terminal is in a standby state, the camera (101) is used for collecting an image within a shooting area thereof and sending the image to the image matching unit (S101); the image matching unit is used for comparing the image collected by the camera with pre-stored unlocking images (S102); and when the image collected by the camera is matched with any one of the pre-stored unlocking images, an unlocking command is sent to the control unit (S103); and the control unit is used for unlocking the terminal from the standby state according to the unlocking command sent by the image matching unit.

DATA PROCESSING DEVICE AND WORKING MODE SWITCHING METHOD AND DATA DISPLAYING METHOD THEREOF

Disclosed are a data processing device and a working mode switching method and a data displaying method thereof. The working mode switching method comprises: obtaining a switching instruction; and switching, according to the switching instruction, a data processing device to a first or second working mode, the second working mode being a multi-user working mode. The data displaying method comprises: when users of at least two terminals use a uni-screen multi-user service provided by a data processing device at the same time, establishing connection between the data processing device and the at least two terminals, and receiving first data sent by the first terminal according to a data sharing rule between the terminals; combining the first data with stored data for sharing to obtain combined data; and displaying designated parts in the combined data on a display screen of the data processing device. The embodiments of the present invention solve the problems occurring when multiple users ...

COMMUNICATION METHOD, APPARATUS AND SYSTEM

Embodiments of the present application provide a communication method, apparatus and system, capable of solving the problem in the existing discontinuous transmission scenario that a network device and a terminal device are inconsistent in the understanding of retransmission scheduled by downlink control information (DCI). The method comprises: the network device sends first DCI to the terminal device, and the terminal device receives the first DCI from the network device, the first DCI comprising a first field and a second field; the first field indicates that a transmission block (TB) to be retransmitted exists in TBs scheduled by the first DCI, and the second field indicates an index of a first TB to be retransmitted in the TBs scheduled by the first DCI; the terminal device receives, according to the first field and the second field, the first TB to be retransmitted from the network device; or, the terminal device sends, according to the first field and the second field, the first TB ...

DATA SCHEDULING METHOD, APPARATUS, AND SYSTEM

Provided in the embodiments of the present application are a data scheduling method, apparatus, and system, providing a DCI design supporting multiple TB scheduling. In the present solution, a terminal device and a network device respectively determine the number M of hybrid automatic repeat request HARQ processes supported for use by the terminal device; the network device sends downlink control information DCI to the terminal device, and the terminal device receives the DCI from the network device, the DCI comprising a first field, the first field indicating the number N of transport blocks TB scheduled by the DCI, and N being a positive integer greater than 1; if M = 1, the terminal device receives or sends on a HARQ process supported for use by the terminal device an initially transmitted TB and/or repeat transmitted TB in the N TB scheduled by the DCI; or, if M is greater than 1 and N is less than or equal to M, the terminal device receives or sends on N HARQ processes in the M HARQ ...

WIRELESS NETWORK CONNECTION METHOD AND APPARATUS, AND COMPUTER STORAGE MEDIUM

Disclosed is a wireless network connection method, which comprises: a radio access device judges whether an authorized terminal exists in the coverage of the radio access device; when the radio access device determines that an authorized terminal exists in the coverage of the radio access device, the radio access device judges whether an unauthorized terminal having a wireless signal parameter exceeding a preset threshold exists in the coverage of the radio access device in addition to the authorized terminal; and if yes, the radio access device establishes a wireless network connection for the unauthorized terminal. Also disclosed are a wireless network connection apparatus and a computer storage medium.

SEA BRIDGE AND ECOLOGICAL CONSTRUCTION METHOD THEREFOR

Disclosed are a sea bridge and an ecological construction method therefor. The line of a main beam of the sea bridge is an S-shaped projection both horizontally and vertically; bridge approaches are respectively provided at two ends of the main beam; the bridge approaches comprise an upper crossbeam (10) located above the line of the ground, and a concrete foundation beam (11) pre-cast below the line of the ground; a bottom part of the concrete foundation beam (11) is provided with a plurality of anti-floating piles (4) inserted into the earth; the concrete foundation beam (11) and the upper crossbeam (10) form a box girder; the inside of the box girder is a tunnel (12); a retaining wall (3) is embedded between one end of the box girder at a distance from the sea bridge main beam and the ground; and one end of the concrete foundation beam (11) near the retaining wall (3) is provided with an intercepting ditch (5). Spatially using an S-shape for the line of the sea bridge can reduce the ...

电力管理终端

液压支架

污水泵

椅子（小功能椅）

电子称量机

游戏机（A03）

Instant pressure buffer mechanism of intelligent wireless charger

The utility model discloses an instant pressure buffer mechanism of an intelligent wireless charger, which comprises a wireless charging transmitting plate, a fixed seat and a mounting plate, the bottom of the fixed seat is fixedly connected with two groups of fixed sliding rods, and a connecting sliding rod is fixedly connected between the two groups of fixed sliding rods. Two sets of driving sliding blocks are arranged on the connecting sliding rod in a sliding connection mode, the connecting sliding rod is sleeved with an extension spring, a connecting supporting plate is arranged on the fixed sliding rod in a sliding connection mode, an upper rotating seat is fixedly connected to the bottom of the connecting supporting plate, and connecting rods are arranged between the upper rotating seat and the driving sliding blocks; the two ends of the connecting rod are rotationally connected with the driving sliding block and the upper rotating base through rotating pins correspondingly, a buffering ...

Personnel information intelligent analysis system and method based on big data

The invention relates to the technical field of personnel information analysis, in particular to an intelligent personnel information analysis system and method based on big data, and the system comprises a user side, a service terminal, a personnel information detection and search unit, a search, display and supervision unit, a limit judgment unit and an adjustment warning unit. The information leakage in the system caused by the loss of the account of the user is avoided, so that the security of the personal account and the system is increased, the information query of the storage personnel is performed through the verified account, the queried data is graded according to the authority of the user, the authority of the user is matched with the grade of the queried data, and the user experience is improved. According to the method and the device, the information is graded, the safety of the high-grade personnel information is improved, the authority of the user is re-evaluated irregularly ...

Multi-frame still image identification data filtering method and system

The invention provides a multi-frame static image recognition data filtering method and system, and belongs to the technical field of image data processing, and the method comprises the steps: 1, obtaining static target object picture data in different time periods through an information collection device; step 2, constructing a vector memory, and storing static target object picture data; step 3, traversing the static target object picture data in the vector memory according to requirements; step 4, dividing the read static target object picture data into reference frame picture data and current frame picture data; step 5, performing feature point matching of the reference frame picture data and the current frame picture data through calculation of a pixel point distance; step 6, performing filtering processing on a matching result; and step 7, outputting the filtered data. According to the method, data alignment processing is executed in combination with different time sequences of the ...

Forklift type AGV inclination angle detection system

The invention discloses a forklift type AGV inclination angle detection system which comprises a folding pallet fork and an inclinometer, an inlaying groove is formed in the folding pallet fork, the inclinometer is embedded in the inlaying groove, the forklift type AGV inclination angle detection system further comprises a folding fork vertical plate, the root of the folding pallet fork is movably connected with one end of the folding fork vertical plate, and the folding pallet fork and the folding fork vertical plate form a 90-degree angle. According to the forklift type AGV inclination angle detection system, the inclinometer adopts an installation mode of embedding the pallet fork, the embedded installation mode does not need to occupy extra space, does not need to consider the arrangement of the detection device, does not need to design an extra support, and does not need to reserve the installation position of the detection device; the inclination angle is directly measured by the ...

Oxalate rare earth firing furnace, firing control system and control method

The invention relates to the technical field of rare earth production equipment and discloses an oxalic acid rare earth firing furnace and a firing control system and method.The oxalic acid rare earth firing furnace comprises a furnace body, a pushing mechanism is arranged at one end of the furnace body, a discharging mechanism is arranged at the other end of the furnace body, and the furnace body is divided into a drying section, a decomposing section, a heat preservation section, a slow cooling section and a rapid cooling section according to the sequence from feeding to discharging; and an automatic material turning mechanism is arranged at the heat preservation section. The automatic material turning mechanism has the beneficial effects that the automatic material turning mechanism is arranged on the heat preservation section of the furnace body, and after materials in the material groove are burnt for a period of time, the automatic material turning mechanism acts to turn over the ...

Large-gradient inclined shaft secondary lining construction method

The invention discloses a large-gradient inclined shaft secondary lining construction method, and relates to the technical field of tunnel construction, the construction method comprises the following steps: S1, construction condition detection; s2, measuring and setting out; s3, checking and accepting track materials; s4, inserting rod placement; s5, laying sleepers; s6, reworking in time; s7, track laying; and S8, secondary lining construction. According to the secondary lining construction method for the large-gradient inclined shaft, height difference detection can be conducted in the laying process of each sleeper or each track, workers are timely notified to conduct correction and reworking on the current sleepers or tracks with the height difference exceeding the standard value, and after the tracks are completely laid, it is indicated that the height difference is qualified; therefore, height difference detection and reworking do not need to be carried out after the track is completely ...

FUNCTIONAL TOBACCO SHEET AND PREPARATION METHOD THEREOF

A functional tobacco sheet and a preparation method thereof are provided. The preparation method includes the following steps: washing glycyrrhiza residue which is used as a material, grinding it into pulp, washing to remove water soluble substances from the pulp, manufacturing paper with pulp, coating extract on the two sides of the sheet of glycyrrhiza residue, and drying the sheet. The tobacco sheet has no tar and low carbon mono-oxide emission. When added into the cigarette, the tobacco sheet can distinctly increase flavor and reduce the cigarette harshness.

ELECTRIC MOTOR OIL PUMP ASSEMBLY, STEERING SYSTEM AND VEHICLE

Disclosed is an electric motor oil pump assembly, comprising: an electric motor assembly (200); an oil pump assembly (100), the oil pump assembly (100) being supported on an end cover of the electric motor assembly (200), an upper end cover (210) of the oil pump assembly (100) being provided with an end cover cavity which penetrates through the upper end cover (210) and is in communication with a high pressure cavity (102) of the oil pump assembly (100); an inner soundproof cover (400), the inner soundproof cover (400) being sheathed outside the oil pump assembly (100) and defining, together with the oil pump assembly (100), an inner layer soundproof cavity (401) filled with low pressure oil, the inner layer soundproof cavity (401) being in communication with a low-pressure cavity (101) of the oil pump assembly (100); and a pre-tightening buffer assembly (300), the pre-tightening buffer assembly (300) comprising a piston (310) and an elastic member (320), the piston (310) being in cooperation ...

STORAGE BATTERY CURRENT-CARRYING PLATE

The present invention relates to the technical field of batteries, and discloses a storage battery current-carrying plate, comprising a frame (1), a pole lug (2), and a plurality of transverse ribs (3) and vertical ribs (4), the pole lug (2) being positioned at the edge of one side of the frame (1), the transverse ribs (3) and the vertical ribs (4) being arranged on the inner side of the frame (1) in a mutually intersecting and conducting manner, at least one main vertical rib (401) amongst the plurality of vertical ribs (4) and the pole lug (2) being positioned on the same line, and the remaining vertical ribs (4) being arranged sequentially to two sides using the main vertical rib (401) as a baseline; the transverse ribs on two sides of each vertical rib are staggered, each transverse rib being a pointed cone shape, the end closest to the main vertical rib being relatively thicker, the distance between each two horizontal ribs gradually decreasing in the direction from near to far from ...

METHOD FOR PREPARING GLYCOLALDEHYDE FROM GLYCERIN

The present invention provides a new method for preparing glycolaldehyde with glycerin as a raw material. By using an optical-thermal coupling method, with TiO2 that supports a metal promoter as a catalyst, glycerin is further converted to glycolaldehyde, formic acid, and hydrogen in an aqueous solution. By adopting the glycerin conversion method in the present invention, glycolaldehyde can be prepared with high selectivity; the selectivity may be up to 80% and more, and the yield is up to 35% and more. The reaction condition is mild; no acid, alkali or organic solution needs to be added; the reaction does not require a high temperature or a high pressure. The present invention provides a new approach for preparing glycolaldehyde, which is cheap and green.

ARTIFICIAL DIET FOR SMALL HIVE BEETLE

Disclosed is an artificial diet for a small hive beetle, comprising yeast powder, honey, insect powder, a preservative, and water. The insect powder is black soldier fly larvae powder or mealworm powder. The honey is one or more of rapeseed honey, lychee honey, citrus honey, and motherwort honey. The preservative is one of sorbic acid and potassium sorbate. The present artificial diet can be used to breed and obtain small hive beetles at the same life stage, and the hatching rate thereof and the egg-laying rate of the adult beetles are both more than 80%.

NEW-ENERGY VEHICLE CHARGING METHOD AND SYSTEM

Disclosed is a new-energy vehicle charging method. The new-energy vehicle charging method comprises the following steps: S01, when a new-energy vehicle to be charged (2) is located in a charging region of a charging frame (1), performing identity recognition between the charging frame (1) and the vehicle (2); S02, upon successful identity identification between the charging frame (1) and the vehicle (2), establishing a one-to-one communication connection between the charging frame (1) and the vehicle (2); and S03, the charging frame (1) charging the vehicle (2) with which the one-to-one communication connection has been established. Also disclosed is a new-energy vehicle charging system. The new-energy vehicle charging system comprises charging frames (1). A wireless Wi-Fi network is correspondingly provided in each charging frame (1). An identification unit (3) is provided between the charging frame (1) and a vehicle to be charged (2), and is used to perform identity recognition between ...

Binary mixed type aerosol product

... 本实用新型公开了一种双体混合型气雾剂产品，包括有外壳，在所述外壳内设有两个喷雾灌装置，在所述外壳上端设有外盖，在所述外盖上连接有能同时驱动两个喷雾灌装置工作且能使两个喷雾灌装置混合一起后通过同一通道喷出的混合喷盖。本实用新型的目的是为了克服现有技术中的不足之处，提供一种结构简单，使用方便，能将两种不同气雾剂有效混合后喷出的双体混合型气雾剂产品。 ...

A stirring mechanism for emulsifying mixer

... 本实用新型涉及生产溶媒的设备领域，尤其是一种乳化搅拌机用搅拌机构。其包括：变速器壳体、内搅拌轴、外搅拌轴、主动齿轮、中间齿轮、第二转轴、第一从动齿轮、第二从动齿轮和第三从动齿轮，内搅拌轴底部固接有框式搅拌桨；外搅拌轴与内搅拌轴转动连接，外搅拌轴上设置有搅拌叶片；主动齿轮固接于内搅拌轴上；中间齿轮固接于第一转轴上并与主齿轮相啮合；第一从动齿轮固接于第二转轴上并与中间齿轮相啮合；第二从动齿轮固接于第二转轴上；第三从动齿轮固定于外搅拌轴上并与第二从动齿轮相啮合。它使用一台电机即可带动搅拌桨和搅拌叶片同时转动，搅拌桨和搅拌叶片的转向相反，搅拌更加均匀，可使乳状液微粒的分散性及乳状液的稳定性更佳。 ...

Tower crane foundation structure and construction method thereof

The invention discloses a tower crane foundation structure and a construction method thereof, and mainly relates to the field of hoisting machinery. Comprising a cross-shaped cofferdam frame-shaped structure foundation, the cross-shaped cofferdam frame-shaped structure foundation comprises four buttress foundations which are arranged in an array mode, a connecting beam is arranged between any two buttress foundations, tower crane supporting legs are arranged on the upper side of the cross-shaped cofferdam frame-shaped structure foundation, and the tower crane supporting legs are arranged on the lower side of the cross-shaped cofferdam frame-shaped structure foundation. A supporting leg seat connected with a tower crane supporting leg is arranged at the top of each buttress foundation; the concrete foundation has the characteristics of high strength and low cost, and can be firmer and safer to use.

High-stability crawler-type shot blasting machine

The invention discloses a high-stability crawler-type shot blasting machine, and belongs to the technical field of casting equipment, the high-stability crawler-type shot blasting machine comprises a chamber body assembly, an automatic door assembly is assembled on the front side end face of the chamber body assembly, a lifting machine assembly is assembled on the position, corresponding to the automatic door assembly, of the rear side end face of the chamber body assembly, and a separator assembly is assembled on the top of the lifting machine assembly; a dust removal box assembly is assembled on the side end face of the chamber body assembly. According to the invention, double inner protection plates are additionally arranged at necessary positions on the inner side, and a labyrinth structure which can be detached from the outside or adjust the height of the inner protection plates and can be used by building the inner protection plates is designed, so that steel shots are effectively ...

Bluetooth remote controller connection method, device and system

The invention discloses a Bluetooth remote controller connection method, device and system, and relates to the Bluetooth remote controller connection technology, the Bluetooth remote controller connection method, device and system are used for connection between Bluetooth equipment and a Bluetooth remote controller, the Bluetooth equipment receives physical key values emitted by a target Bluetooth remote controller through infrared rays, the physical key values comprise a fixed key value and a conventional infrared key value, automatically mapping the fixed key value into a corresponding Android key value according to a preset mapping table, and judging whether the mapped Android key value is a preset specified key value or not by a background system framework function; if the mapped Android key value is a preset specified key value, automatically completing pairing and connection with the target Bluetooth remote controller through a Bluetooth pairing process; if the mapped Android key ...

Unmanned aerial vehicle trajectory planning and tracking control method based on improved AAPF-IRRT algorithm

The invention discloses an unmanned aerial vehicle trajectory planning method based on an improved AAPF-IRRT algorithm, and the method comprises the steps: employing an artificial potential field method and a self-adaptive step length method to improve an Informed RRT * algorithm, introducing the artificial potential field method on the basis of the Informed RRT * algorithm, and guiding a random sampling point to generate a target point, introducing an adaptive step length adjustment strategy to accelerate the expansion speed of the random tree in a barrier-free environment, obtaining an improved AAPF-IRRT algorithm, and obtaining discrete coordinate points of the flight path of the unmanned aerial vehicle; and S02, fitting the discrete coordinate points in the step S02 by using a minimum snap algorithm in combination with closed-form solution, a flight corridor and time distribution to obtain the flight trajectory of the unmanned aerial vehicle. The convergence speed of the fast search ...

SPEED ADJUSTMENT METHOD AND DEVICE FOR MOUNTAIN CLIMBING MACHINE WITHOUT EXTERNAL POWER

A mountain climbing machine without external power. A front roller or rear roller (2) is connected with a generator (3), and the generator (3) is connected with an electronic load and/or storage battery (6) through a control circuit (7). Further disclosed is a speed adjustment method for the mountain climbing machine. An end of a running belt (4) bends up to form a certain slope with the ground, the running belt (4) rotates by using human weight as power, the front roller or rear roller (2) arranged with the front roller or rear roller (2) is connected with the generator (3), when the running belt (4) rotates, the generator (3) generates electricity to generate electrical energy, and the rotating speed of the generator (3) is controlled by consuming the electrical energy, so that the generator (3) applies resistance on the front roller or rear roller (2) connected with the generator (3), to keep the running belt (4) rotating at a constant speed.

METHOD FOR TRANSMITTING MESSAGE DURING RANDOM ACCESS, AND RELATED DEVICE

Provided in the present application are a method for transmitting a message during random access, and a related device. The method comprises: receiving a broadcast system message from a network device, and determining, according to the system message, a maximum transmission block size (TBS) allowed to be used; receiving downlink control information from the network device, wherein the downlink control information comprises a first number of repetition times and a first TBS; determining a second number of repetition times that the scheduling transmission message for random access is re-sent, according to the first number of repetition times, the first TBS, a second TBS used in sending a scheduling transmission message for random access the first time, and the maximum TBS; and re-sending the scheduling transmission message for random access to the network device according to the second TBS and the second number of repetition times. By means of the embodiments of the present application, randomly ...

EXTRUSION LINE DOWNSTREAM COMPONENT WATER REMOVAL APPARATUS

An extrusion line component water removal apparatus, comprising an extrusion line frame (1), extrusion line conveying rollers (2) and a water removal apparatus body. The plurality of extrusion line conveying rollers (2) are arranged at the rear of an extruder outlet, and are uniformly distributed on the extrusion line frame (1). The water removal apparatus body is hoisted at an upper extrusion line downstream position of the extrusion line frame (1), and is matched with an extrusion line. The water removal apparatus body is made up of a water removal apparatus hanging bracket (3), a water removal roller (5) and a drainage apparatus. The water removal roller (5) is fixed on the water removal apparatus hanging bracket (3), an outer edge of the water removal roller (5) is in close contact with the extrusion line, and the drainage apparatus is connected to the water removal roller (5). The water removal roller (5) is made up of a sponge shaft (51) and a water-absorbing sponge (8) sleeved on ...

CATALYSIS TEST PAPER PREPARED BY COMPOUNDING BACTERIAL-CELLULOSE-SUPPORTED METAL PARTICLES WITH PLANT FIBERS, AND METHOD THEREFOR

Disclosed are a catalysis test paper prepared by compounding bacterial-cellulose-supported metal particles with plant fibers, and a preparation method therefor. Hydroxyl groups of bacterial cellulose are bonded with a nitrogen- or phosphorus-containing organic small molecule compound, wherein by means of the action of the chelation of nitrogen or phosphorus with a metal, transition metal ions are adsorbed to the surface of nanopores in the bacterial cellulose, the transition metal ions are reduced in situ to obtain a bacterial cellulose which supports metal nanoparticles, the bacterial cellulose is compounded with plant fibers, and the catalysis test paper is prepared by means of a method for making paper. The catalysis test paper has the advantages of convenient use and recovery, a high reusability, a simple design, a low manufacturing cost, a higher catalytic efficiency, a green degradable support material, etc.

CONNECTING PIPE JOINT, CONNECTING PIPE STRUCTURE AND AIR CONDITIONER INDOOR UNIT

A connecting pipe joint, a connecting pipe structure and an air conditioner indoor unit, the connecting pipe joint (3) being used for connecting a main machine body (10) and a connecting pipe assembly (20) of the air conditioner indoor unit, and the connecting pipe joint (3) comprising: a joint main body (30), comprising a first connecting part used for connecting to the main machine body (10) and a second connecting part used for connecting to the connecting pipe assembly (20); and a clamping part (40), arranged on the first connecting part, wherein the first connecting part is clamped on the main machine body (10) by means of the clamping part (40). Therefore, the problem of it being difficult to detach a connecting pipe structure and a fresh air device from each other is solved.

UNDERWATER DETECTION SYSTEM FOR CAVITY REGION OF CONCRETE PANEL ROCK-FILL DAM BASED ON ACOUSTIC WAVE SENSING

An underwater detection system for a cavity region of a concrete panel rock-fill dam based on acoustic wave sensing, comprising a moving platform, an acoustic wave producing apparatus, an acoustic wave receiving apparatus (9), a traction apparatus, and a positioning apparatus (4); the acoustic wave producing apparatus and the positioning apparatus (4) are arranged on the moving platform, the traction apparatus controlling the movement of the moving platform on the surface of a concrete panel (13); the acoustic wave producing apparatus produces a penetrative acoustic wave, and the acoustic wave receiving apparatus (9) receives the acoustic wave and determines whether there is a cavity region on the basis of the acoustic wave signal, the position of the cavity region being transmitted by means of the positioning apparatus (4).

Pantograph with double-sliding-plate structure

The invention discloses a pantograph with a double-slide plate structure. The pantograph comprises a rotating shaft, two slide plate suspension structures and two carbon slide plates, the two ends of the rotating shaft are respectively connected with the slide plate suspension structures, and each carbon slide plate is simultaneously connected with the two slide plate suspension structures; each sliding plate suspension structure comprises a shell, a multi-connecting-rod structure and an elastic component, the extending direction of the shell is perpendicular to the extending direction of the rotating shaft, the elastic component is located in the shell, and the extending direction of the elastic component is parallel to the extending direction of the shell; one part of the multi-connecting-rod structure extends out of the shell and is connected with the carbon sliding plate, and the multi-connecting-rod structure is used for converting vertical movement of the carbon sliding plate into ...

Anisotropic nanocrystalline rare earth permanent magnet and preparation method thereof

The invention discloses an anisotropic nanocrystalline rare earth permanent magnet and a preparation method thereof. The permanent magnet comprises an RE-Fe-B matrix phase and a second phase, the RE-Fe-B matrix phase comprises main phase RE2Fe14B flaky nanocrystals and RE-rich phases, the main phase RE2Fe14B flaky nanocrystals are regularly arranged, the RE-rich phases are located around the main phase crystal grains, the average crystal grain size of the main phase RE2Fe14B flaky nanocrystals in the length direction is 70-800 nm, and the average crystal grain size of the main phase RE2Fe14B flaky nanocrystals in the thickness direction is 30-200 nm; the second phase comprises at least one of an M-Cu phase or an M-Cu-O phase, and M is at least one of Ca or Mg. According to the method, Ca or Mg in the M-Cu alloy is used for reducing rare earth oxide at the RE-Fe-B magnetic powder interface, rare earth-rich phase distribution can be improved, crystal grains of main phase nanocrystals can ...

Supporting rail and ground induction loop line leveling all-in-one machine

The invention provides a supporting rail and ground induction loop line leveling all-in-one machine, and belongs to the technical field of leveling construction. The supporting rail and ground induction loop line leveling all-in-one machine comprises the steps that a supporting rail and a side line of a ground induction loop line are pulled, and a formwork is erected according to the position of the side line. And positioning the slab staggering support in the template, and pouring concrete between the two side surfaces of the slab staggering support and the template on the corresponding side. And the supporting frame is placed on the formwork, the position of the trowelling plate relative to the supporting frame is adjusted, and the first face and the second face of the bottom of the trowelling plate are adjusted to the corresponding positions correspondingly. The troweling plate is driven by the supporting frame to move along the formwork, and the supporting rail troweling surface and ...

Freezing extraction method for salmon and trout visceral mass fish oil

The invention belongs to the technical field of aquatic product processing, and particularly relates to a method for freezing and extracting salmon and trout visceral mass fish oil. The salmon and trout visceral mass is used as a raw material, the raw material is directly frozen to separate out fish oil, and then the fish oil is obtained through smashing, centrifuging and filtering. The method is low in cost and easy to operate, and the fish oil extraction rate is remarkably increased. In the extraction process of the fish oil, only physical means are used without chemical reagents, so that the fish oil is safe, healthy, good in quality and free of chemical solvent residues, chemical pollution in the extraction process of the fish oil is effectively reduced, and the product purity and stability of the visceral fish oil are improved.