动力总成（3000Nm两级减速）

汽车日行灯

汽车侧裙

汽车副仪表板

汽车扰流板

汽车

汽车前保险杠

方向盘（汽车）

汽车顶棚

瓶盖

Auxiliary installation vehicle for pull-out type bottom plate of railway vehicle

The utility model discloses an auxiliary installation vehicle for a pull-out type bottom plate of a railway vehicle, belongs to the technical field of auxiliary installation equipment in the assembly stage of the railway vehicle, and is used for solving the technical problems that in the prior art, the labor intensity is high, and time and labor are wasted when the bottom plate is assembled. A chassis is provided with wheels and universal wheels, and a handrail is fixedly connected to one side of the chassis; the platform is arranged above the chassis and is rotationally connected with the chassis through a horizontal shaft; the lifting mechanism is arranged on the chassis and used for driving the platform to rotate. The lifting mechanism is provided with a pressurizing pedal, a pressure relief hand brake and a telescopic hydraulic device which is rotationally connected between the chassis and the platform; a pressurizing pedal and a pressure relief hand brake are mounted at the armrest ...

Manufacturing method of composite board and composite board

The invention belongs to the technical field of composite material products, and discloses a manufacturing method of a composite board and the composite board, the manufacturing method of the composite board comprises the following steps: S100, mixing a blade reclaimed material and resin to form a mixture; s200, a pultrusion sheet is placed in the mold; step S300, adding the mixture into a mold; and S400, the mold is subjected to heating treatment and pressurizing treatment. According to the manufacturing method of the composite board, manufacturing of the high-strength, wear-resistant and corrosion-resistant composite board can be achieved, the modulus and the axial strength of the composite board are improved, meanwhile, recycling of the waste wind power blade material is achieved, and the application scene of the waste wind power blade material is further expanded.

MECHANICS SIMULATION TEST SYSTEM OF ROADWAY SUPPORT UNDER COMBINED DYNAMIC AND STATIC LOADS AND METHOD THEREFOR

A mechanics simulation test system of a roadway support under combined dynamic and static loads and a method therefor, the system comprising a similar material laying system (1), a hydraulic loading system (2), a power system (3), a monitoring system (4) and a control system (5); the similar material laying system (1) comprises a connection frame, a laying platform (12) and a reserved anchor bolt model (13); the laying platform (12) is placed at the interior of the connection frame, and the laying platform (12) is provided thereon with a coal and rock-like layer (14); the coal and rock-like layer (14) is composed of coal and rock-like materials that are laid in sequence in separate layers, and the reserved anchor bolt model (13) is disposed at a middle position of the coal and rock-like layer (14). The test system simultaneously applies a static load and dynamic load having an adjustable size to the coal and rock-like layer (14) such that the stress on rock surrounding the roadway and a ...

燃气灶

汽车顶棚

后保险杠

汽车转向管柱护罩

汽车尾灯

汽车高位制动灯

外后视镜

动力总成

宠物碗（水粮双碗）

瓶身（化妆品-锥形）

汽车仪表台

汽车前大灯

汽车车门

护板（A柱）

主驾座椅

瓶盖（化妆品-大檐帽）

烟支

传感器

Video backup method, system and device, intelligent terminal and storage medium

The invention is applicable to the technical field of vehicle-mounted terminals, and provides a video backup method, system and device, an intelligent terminal and a storage medium, the video backup method is applied to a vehicle-mounted terminal, and comprises the following steps: when a vehicle drives into a designated area, automatically connecting a WiFi hotspot of the designated area; sending a connection request to a management terminal by using the WiFi hotspot, and establishing a connection with the management terminal based on the connection request; based on the connection, acquiring a video uploading task issued by the management terminal; and uploading the video to the management terminal for backup according to the video uploading task. According to the invention, the video backup efficiency of the vehicle-mounted terminal can be improved, and the hardware cost and the labor cost of video backup are reduced.

LASER MARKING MACHINE, METHOD FOR ADJUSTING DISTANCE BETWEEN SCANNING HEAD AND OBJECT TO BE MARKED, AND AUTOMATIC FOCUSING METHOD AND AUTOMATIC FOCUSING MARKING METHOD OF MARKING MACHINE

A laser marking machine, comprising: a pallet (3) moving up and down, wherein a laser marking assembly (4) is provided on the pallet, further comprising a controller and a first driving assembly (6), and further comprising a ranging assembly (5) arranged on the laser marking assembly, wherein the ranging assembly comprises a laser pointer (51) and a laser sensor, wherein the laser pointer is used for emitting a laser onto the surface of an object to be marked; the laser sensor is used for receiving the laser reflected from the surface of the object to be marked (10) and sending a signal to the controller; and the controller calculates the vertical distance from the surface of the object to be marked to the ranging assembly according to the signal, so as to drive a related device, so that the distance between a scanning head of the laser marking assembly and the surface of the object to be marked matches a marking focal length of the laser marking machine, or so that the marking focal length ...

Packed tower with flue gas waste heat recycling function

The invention relates to the technical field of towers, in particular to a packed tower with a flue gas waste heat recycling function, the packed tower comprises a tower body, a wall flow prevention packing mechanism, an air entraining piece and a driving mechanism, a liquid distributor is arranged in the upper end of the tower body, and the wall flow prevention packing mechanism comprises two combined packing cylinders; each combined packing barrel is vertical and is of an inner-outer double-layer structure, the inner layer of each combined packing barrel is fixed in the tower body, the outer layer of each combined packing barrel is rotationally connected with the inner layer of the combined packing barrel, an arc-shaped scraping strip is arranged on the outer layer of each combined packing barrel, the air entraining piece is a negative pressure fan, the driving mechanism comprises a driving shaft and a speed change mechanism, and the speed change mechanism is connected with the driving ...

Information management system for constructional engineering

The invention relates to the technical field of image analysis, in particular to an information management system for constructional engineering, which comprises a memory and a processor, and the processor executes a computer program stored in the memory to realize the following steps: determining static and dynamic areas of each frame of image in a construction road aerial video, screening out adjacent frames of images of which the number of static feature matching point pairs of all static areas is smaller than a preset number; determining the degree of movement based on the screened target area and each dynamic area of the adjacent frame images; determining a registration score through the movement degree and the image features of each group of feature matching point pairs, and further determining an optimal feature matching point pair group; determining each optimal registration image through the optimal feature matching point pair group, and determining a construction road splicing ...

Laser interferometer collimation device and method

The invention relates to the technical field of laser interferometer adjustment, in particular to a laser interferometer collimation device and method, and the device comprises a reflector tool and a laser generator auxiliary plate. The reflector tool comprises a connecting piece, a mounting plate and two groups of detection devices, a Z-axis reflecting mirror is further arranged at the bottom of the mounting plate, and an enoscope connecting piece is mounted below the Z-axis reflecting mirror and used for mounting the reflecting mirror tool on a machine tool spindle; each group of detection device comprises a reflecting mirror and a laser pen; the laser generator auxiliary plate is used for installing a laser generator, a target is further arranged on the laser generator auxiliary plate, the distance between a light emitting hole of the installed laser generator and the target is constant, and the distance is equal to the distance between the laser pen and the reflector in the same detection ...

THIN FILM, THIN FILM SOLAR CELL AND PREPARATION METHOD THEREFOR

The embodiments of the present invention relate to the technical field of thin films, and relate to a thin film, a thin film solar cell and a preparation method therefor; the technical problem to be mainly solved is the water-blocking properties of a cover film layer being poor. The technical solution that is mainly employed is as follows: the preparation method for a thin film comprises: forming a first cover layer on a surface of a resin film layer by employing a coating process so that the first cover layer covers surface holes on the surface of the resin film layer; forming a second cover layer of an inorganic material on the first cover layer by employing a deposition process. Compared with the existing technology, in the embodiments of the present invention, since the surface holes of the resin film layer are covered by the first cover layer, an inorganic film layer formed by the second cover layer of an inorganic material thus has good water-blocking performance. Thus, the thin film ...

Cigarette retailer inventory checking method based on three-dimensional reconstruction algorithm

The invention provides a cigarette retailer inventory checking method based on a three-dimensional reconstruction algorithm, and relates to the technical field of image processing, and the method comprises the steps: collecting retail counter and inventory cigarette images of a cigarette retailer, carrying out the segmentation marking and classification marking of the cigarette images, and carrying out the classification marking of the cigarette images; according to the method, display depth information is analyzed by combining an image recognition model and an image analysis algorithm of structural uniqueness of cigarette package appearance, and then accurate cigarette brand inventory data is obtained by combining a deep learning technology, so that tedious steps are omitted, the efficiency is improved, an inventory result can be quickly obtained, and the inventory efficiency is improved. And the time consumed for checking at a single retailer is greatly reduced.

RADIO FREQUENCY PHASE SHIFTER

The present invention provides a radio frequency phase shifter, comprising: multiple first transmission lines, multiple second transmission lines, multiple mixers, and multiple couplers. The multiple first transmission lines are connected in sequence to form a main transmission line, and the multiple second transmission lines are connected in sequence to form another main transmission line. The multiple first transmission lines and the multiple second transmission lines are in a one-to-one correspondence. A coupler is connected between two adjacent first transmission lines, and a coupler is connected between two adjacent second transmission lines. A mixer is connected between two corresponding couplers. When two input signals of different frequencies are respectively transmitted on the two main transmission lines, the multiple mixers disposed in sequence output a set of output signals having a phase gradient. In the present invention, the two input signals of different frequencies are aliased ...

LOW FREQUENCY ELECTROSTATIC ULTRASONIC ATOMISING NOZZLE

A low frequency electrostatic ultrasonic atomising nozzle, relating to electrostatic atomisers in the field of agricultural engineering, and comprising a transducer rear cover plate (5), a piezoelectric ceramic (6), a transducer front cover plate (18), a nozzle variable amplitude rod (3), and a tightening screw (12), the tightening screw (12) passing in turn through circular central holes of the transducer rear cover plate (5), the piezoelectric ceramic (6), and the transducer front cover plate (18), the axial centre of the nozzle variable amplitude rod (3) being provided with a liquid intake channel (4), a gas intake channel (7) being provided at a position offset from the axial centre, and the top part of the nozzle variable amplitude rod (3) being machined into a concave spherical surface, the concave spherical surface being provided with a suspension ball (8). The suspension ball (8) is rotated at high speed using compressed air in an axially eccentric motion, and electrode electrification ...

AIR CONDITIONING SYSTEM, CONTROL SYSTEM, AND AIR CONDITIONING CONTROL METHOD

An air conditioning system, a control system, and an air conditioning control method. The air conditioning system comprises: M outdoor machines (101); N indoor machines (102); and a control system (103), comprising: a lubricating oil allocation subsystem (1031) connected to the M outdoor machines (101); a refrigerant allocation subsystem (1032) connected to the M outdoor machines (101); and a control subsystem (1033) connected to the N indoor machines (102), the M outdoor machines (101), the lubricating oil allocation subsystem (1031), and the refrigerant allocation subsystem (1032).

Interlayer multiple prediction method and device

The invention discloses an interlayer multiple prediction method and device, and the method comprises the steps: carrying out the splitting processing of seismic data, and obtaining the split upper data and lower data; performing first conversion processing on the upper data and the lower data to obtain corresponding frequency domain upper data and frequency domain lower data; performing multiple product processing on conjugate complex numbers of the lower data of the frequency domain and the upper data of the frequency domain to obtain a product data body; and performing second transformation processing on the product data volume to obtain predicted interlayer multiple data. Seismic data are split into upper data and lower data, the upper data and the lower data are converted into corresponding frequency domain upper data and frequency domain lower data, conjugate complex numbers of the frequency domain lower data and the frequency domain upper data are subjected to multiple product processing ...

METHOD FOR PREPARING BARICITINIB

The present invention relates to the technical field of drug preparation. Disclosed is a method for preparing baricitinib. According to the method, 4-chloropyrrolopyrimidine is used as a starting raw material, is subjected to amino protection, and then undergoes a one-pot displacement reaction and a cyclization reaction with hydrazine hydrate and acrolein to produce an intermediate 4; a starting raw material 1, 3-dibromoacetone and ethylene glycol undergo a condensation reaction to produce an intermediate 5; the intermediate 5 and ethyl sulfonamide undergo a condensation reaction to produce an intermediate 6; the intermediate 6 and diethyl cyanomethylphosphonate undergo a reaction under the action of a strong base to produce an intermediate 7; the intermediate 4 and the intermediate 7 undergo an addition reaction under the action of a catalyst and then a deprotection reaction to produce a target product 1. Reaction conditions for the process are mild, the intermediate purification method ...

Nitrogen-phosphorus high-synergism bifunctional flame retardant, efficient flame-retardant beta-crystal polypropylene material as well as preparation method and application of efficient flame-retardant beta-crystal polypropylene material

The invention discloses a nitrogen-phosphorus high-synergism bifunctional flame retardant, an efficient flame-retardant beta-crystal polypropylene material and a preparation method and application of the efficient flame-retardant beta-crystal polypropylene material, the flame retardant is composed of polyphosphates, a modified polymer and chitosan, and the modified polymer is a polyphosphate modified phytic acid-melamine supramolecular polymer. The preparation method of the flame retardant comprises the following steps: preparing a phytic acid-melamine supramolecular polymer by utilizing an ion complexing effect, and adding polyphosphate for modification to obtain a modified polymer; a chitosan-coated modified polymer core-shell material is obtained by utilizing a self-assembly effect under electrostatic driving between chitosan and a modified polymer; and immobilizing multi-phosphate into the core-shell material of the chitosan coated modified polymer to obtain the nitrogen-phosphorus ...

Adjustable auxiliary welding device

The adjustable auxiliary welding device comprises a bearing plate, a wedge-shaped base, a mounting frame, a material suction pipe and a sealing plate, and a positioning mechanism is arranged at the upper end of the bearing plate; meanwhile, the hanging plate position adjusting mechanism is fixedly connected to the left upper end of the bearing plate, the right end of the hanging plate position adjusting mechanism is slidably connected with a hanging plate fixator, and a hanging bracket back plate fixing device is installed at the left middle upper end of the bearing plate; the wedge-shaped base is connected to the right upper end of the bearing plate in a sliding manner; the mounting frame is fixedly connected to the middle position of the upper end of the bearing plate; a suction pipe is connected to the rear lower end of the mounting frame through a bolt, and the rear upper end of the suction pipe is fixedly connected to the front upper end of the storage box; and the sealing plate is ...

HEAT DISSIPATION MODULE FOR USE IN IGBT MODULE AND IGBT MODULE HAVING SAME

Provided are a heat dissipation module for use in an IGBT module, and an IGBT module having the heat dissipation module. The heat dissipation module comprises a radiator bottom plate (100), the radiator bottom plate (100) comprising a bottom plate body (10) and N heat dissipation posts (20). The bottom plate body (10) comprises a body part (13), a first surface layer (11) and a second surface layer (12) which are respectively disposed on two opposing surfaces of the body part (13); the N heat dissipation posts (20) are spacedly disposed on the first surface layer (11), one end of each of the heat dissipation posts (20) being fixed on the first surface layer (11) and the other end being a free end; both the first surface layer (11) and the N heat dissipation posts (20) are suitable for being in contact with a coolant, and the radiator bottom plate (100) is made of copper. The heat dissipation module comprises a copper-clad plate (200), the copper-clad plate comprising a base plate (210), ...

HEAT DISSIPATION MODULE FOR IGBT MODULE AND IGBT MODULE COMPRISING SAME

The present disclosure provides a heat dissipation module for an IGBT module and an IGBT module comprising same. The heat dissipation module comprises: a radiator base plate, the radiator base plate comprising: a base plate body and N heat-dissipation columns, the base plate body comprising a body portion and a first skin and a second skin provided respectively on two opposite surfaces of the body portion, the body portion being made of aluminum silicon carbide, the N heat-dissipation columns being spaced apart on the first skin, and one end of each heat-dissipation column being fixed to the first skin and the other end thereof being a free end, both the first skin and the N heat-dissipation columns being suitable for contacting a cooling liquid; and a copper clad laminate, the copper clad laminate comprising a substrate, a first copper layer and a second copper layer, the first copper layer and the second copper layer being respectively provided on two opposite surfaces of the substrate ...

Multi-chip detection device

The invention provides a multi-chip detection device. The detection device comprises a detection base, a needle plate assembly, a limiting mechanism and a data acquisition and processing module. The needle plate assembly comprises a plurality of thimbles and a circuit board matched with the thimbles; the thimbles with the same number as the chip pins form a group, each group of thimbles corresponds to one chip, the plurality of groups of thimbles are vertically soldered on the circuit board, and the circuit board is positioned at the top of the detection base and is correspondingly connected with the detection base. The limiting mechanism is arranged above the needle plate assembly and is in clamping connection with the detection base, limiting grooves for accommodating chips are formed in the surface of the limiting mechanism, each limiting groove is correspondingly located over one set of ejector pins, and the telescopic ends of the ejector pins extend into the limiting grooves from the ...

Intelligent agricultural mobile sprinkling irrigation control method using image sensing detection

The invention relates to an intelligent agricultural mobile sprinkling irrigation control method applying image sensing detection. The method comprises the following steps that 1, a camera shoots images of plants located on the two sides of a sprinkling irrigation device; 2, the camera sends a shot plant image to a color analysis module; step 3, the color analysis module compares the received picture with a preset color, and sends comparison information to a calculation module; step 4, the calculation module calculates an area which is overlapped with the preset color in the picture, and deduces the actual coverage area of the field plant; and step 5, sending a calculation result of the calculation module to a control module, changing the spraying range of water by the control module, finally, acquiring images of the plants through a camera, analyzing colors in the images through a color analysis module, calculating the actual coverage area of the plants, and further adjusting the amplitude ...

Built-in inclined plate desanding and separating integrated device and desanding and separating method

The invention discloses a sand removal and separation integrated device with a built-in inclined plate and a sand removal and separation method, belongs to the technical field of energy production, and solves the technical problems of large volume and poor sand removal effect of a sand removal and separation process in the prior art. The device comprises a desanding separator, a coarse sand setting area and a fine sand setting area are formed in the desanding separator, and a gas flow channel is formed above the desanding separator; a gas input end is communicated above the gas runner, a plurality of sand setting inclined plates are arranged at the lower part of the coarse sand setting area, and a coarse sand outlet is formed in the bottom end of the coarse sand setting area; the upper part of the gas flow channel is communicated with a gas liquid removal device, and the lower part of the fine sand settling area is communicated with a fine sand outlet; and the sand setting cylinder comprises ...

Close closed circulation water cooling system for ice -melt and SVC device

... 本实用新型公开了一种应用于融冰兼SVC装置的密闭式循环水冷却系统，包括主循环回路,所述主循环回路包括主循环泵、电动三通阀、排气阀、空气冷却器、主过滤器、融冰兼SVC装置及脱气罐；所述主循环泵出口、电动三通阀、排气阀、空气冷却器、主过滤器、融冰兼SVC装置、脱气罐及主循环泵进口通过管道依次串联形成主循环回路；所述电动三通阀的进口端和出口端上设置有与电动三通阀并联的三通阀旁路，所述电动三通阀的第三端与主过滤器进口连接，所述主过滤器出口设置有差压表。本实用新型采用的结构，可根据系统温度变化控制进空气冷却器流量，并可根据温度变化控制空气冷却器的投入比例，实现节能高效的散热效果，保障装置安全正常运行。 ...

Air port structure of automobile air conditioner

The invention provides an automobile air conditioner air opening structure, belongs to the technical field of vehicle-mounted air conditioner equipment, and aims to solve the problems that automobile air conditioner air opening blades are generally arranged at an air opening side by side to facilitate air direction adjustment, but the blades swing for a long time to easily cause deformation of the middle blades, so that the air outlet is not tightly closed to easily squeal, and the air opening leaks too much. An inner frame is arranged in the main frame, an upper air duct and a lower air duct which are parallel are distributed on the inner frame, and a blade group is arranged in each air duct; the blade set comprises upper blades and lower blades which are arranged side by side, the upper blades are arranged on one side of the outermost edge, the lower blades are distributed beside the upper blades at intervals, the upper blades and the lower blades are rotationally connected to the inner ...

METHOD AND DEVICE FOR SLIDING SCREEN

A method and device for sliding a screen, which relate to the technical field of fingerprint recognition and can solve the problem that a user cannot make a terminal turn a page by touching a display screen when it is not convenient for the user's finger to click or slide the display screen (for example, there is dirt or a water stain on the user's finger). The method comprises: identifying a hovering operation using a sonic fingerprint sensor (101); determining orientation information about the hovering operation (102); and turning a page according to the orientation information about the hovering operation (103).

Inventory control method and device, storage medium and equipment

The invention discloses an inventory control method and device, a storage medium and equipment, and the method comprises the steps: obtaining a user account from an inventory control request when the inventory control request input by a user is received; when the user account is not the preset account, judging whether the user account is a sub-control account or not; if the user account is a sub-control account, acquiring a permission corresponding to the user account from a database, and identifying the permission as a target control permission; when the control authority indicated by the inventory control request is the target control authority, the inventory control operation corresponding to the inventory control request is executed, compared with the prior art, the corresponding authority is set for each sub-control account number in advance, the situation that an airline company segments the inventory authority according to the flight date and only can divide the inventory authority ...

METHOD FOR BONDING WIRE BETWEEN CHIPS OR BETWEEN CHIP AND METAL FRAME

A method for bonding a wire between chips or between a chip and a metal frame is provided. A first Au ball is wire-bonded to a second welding point by using a bonding machine. The method includes the following steps: welding a wire to a second chip or a frame that need to be connected; and then welding a second Au ball on the welding point of the wire that has been welded firmly on the second chip or the frame, so as to form a stable interconnection structure under the ball. The method can be applied to a variety of high-power LED lamps assembled by connecting LED chips for ensuring a stable and firm welding point, preventing false welding and sealing off, and improving the reliability of electric components.

ULTRASOUND MONITORING DEVICE FOR ROCK FRACTURE EVOLUTION UNDER MULTI-FIELD COUPLING EFFECTS

An ultrasound monitoring device for rock fracture evolution under multi-field coupling effects, comprising a stress applying unit, a steam generating unit, a steam circulating unit, and a computer (1). The steam generating unit is connected to the stress applying unit via the steam circulating unit. The computer (1) is signally connected to sensors. The stress applying unit is controlled by the computer (1) to apply stress to a rock specimen (2). The steam generating unit is controlled by the computer (1) to generate steam of a set humidity and temperature. Impact of different changes in the humidity and temperature on the rock specimen (2) is implemented by the steam circulating unit. Effects of different chemical solutions on the rock specimen (2) are implemented by changing different chemical solutions. At the same time as the coupling effects of different stresses, different humidity, different temperatures, and different chemical solutions act on the rock specimen (2), an ultrasound ...

HEAT DISSIPATION MODULE FOR IGBT MODULE AND IGBT MODULE HAVING SAME

Provided are an IGBT heat dissipation module (1000) and an IGBT module having the same. The IGBT heat dissipation module (1000) comprises a radiator bottom plate (100), which comprises a bottom plate body (10) and N heat dissipation columns (20). The bottom plate body (10) comprises a body portion (13), and a first surface layer (11) and a second surface layer (12) respectively provided on opposing surfaces of the body portion (13). The N heat dissipation columns (20) are disposed apart from each other on the first surface layer (11), and one end of each heat dissipation column (20) is fixed to the first surface layer (11) and the other end is free end (21). The first surface layer (11) and the heat dissipation columns (20) are both adapted for contact with cooling liquid. The area on the first surface layer (11) which is in contact with the cooling liquid is S1, and the area on the first surface layer (11) which is in contact with each of the heat dissipation columns (20) is S2, wherein ...

LDP SN MEDIUM EUV LIGHT SOURCE SYSTEM REALIZED USING MAGNETIC DRAGGING STRUCTURE

An LDP Sn medium extreme ultraviolet (EUV) light source system realized using a magnetic dragging structure, relating to EUV photoetching light source technology and aiming at solving the problem that a Sn target dragging apparatus of an LDP EUV light source cannot ensure a vacuum isolation state between a Sn target and the outside. The Sn target dragging apparatus is realized using a magnetic dragging structure; a rotary motor (1) in the magnetic dragging structure is used for driving an electromagnet (2) to rotate; the electromagnet (2) drives the Sn target to rotate; the Sn target is round and can rotate around its axis; a support (3) is a round framework provided with a magnet; the Sn target is fixed on the support (3); the support (3) is located in a vacuum discharge chamber (4) of the LDP Sn medium EUV light source system; the rotary motor (1) and the electromagnet (2) are located outside the vacuum discharge chamber (4) of the LDP Sn medium EUV light source system. On this basis, ...

Multi -functional moisturizing device

... 本实用新型多功能补水装置，包括进水箱、储水箱、主过滤器和三通阀，所述进水箱的出水口与储水箱的进水口之间设有进水通道，所述储水箱的出水口与储水箱的进水口之间设有循环供水通道，所述主过滤器和三通阀设于循环供水通道上，三通阀的第一出水口与循环水冷却系统相连通，循环供水通道上位于储水箱的出水口与主过滤器之间依次设有第三阀门、循环泵和第四阀门。本实用新型将进水箱内水经进水通道补充到储水箱中，保证储水箱内水量充足，然后将储水箱内的水抽至循环供水通道，水在循环供水通道内流动时，经过主过滤器被净化为纯净水，之后通过三通阀进入循环水冷却系统，自动完成补水工作，三通阀可精确控制补水量，多余的水重新回到储水箱。 ...

Same-arm double-wheel walking mechanism with obstacle crossing function

The invention discloses a same-arm double-wheel walking mechanism with an obstacle crossing function, and belongs to the technical field of machinery. Comprising a wheel set support, a planetary swing arm assembly, a driving wheel assembly and a driven wheel assembly. The planetary swing arm assembly comprises a swing arm supporting main shaft, a swing arm frame and a transition gear. One end of the swing arm supporting main shaft is fixedly connected with the wheel set support, the swing arm frame and the transition gear are both rotationally connected to the swing arm supporting main shaft, and the driving wheel assembly and the driven wheel assembly are connected to the two ends of the swing arm frame through a driving wheel supporting shaft and a driven wheel supporting shaft respectively. A driving wheel gear in the driving wheel assembly and a driven wheel gear in the driven wheel assembly are both meshed with the transition gear. According to the same-arm double-wheel walking mechanism ...

EARLY WARNING METHOD, CONTROL METHOD AND SYSTEM FOR HAZARDOUS REGIME OF OIL AND GAS GATHERING AND TRANSFERRING RISER SYSTEM

Disclosed are an early warning method, a control method and a system for a hazardous regime of an oil and gas gathering and transferring riser system. Training is performed using a training support vector machine based on the principle of forming slugging between a normal submarine pipeline and the bottom of a riser and using slugging forming position parameters; the overall regime in the pipeline is then continuously and rapidly identified with differential pressure signals on at least three positions on the oil and gas gathering and transferring riser system, and a dimensionless mean value of the differential pressure signals is obtained; and by means of monitoring the formation of long slugging in the submarine pipeline and through the quick response of the differential pressure signals to the changes in flow, the early warning of the instability of a gas-liquid interface and the slugging caused by the pipeline structure is realized, and accordingly, it can be predicted that the slugging ...

Combustor for gas stove

The invention relates to a burner for a gas stove, which comprises a burner body, a first flow guide channel used for guiding overflow liquid is formed between the pipe walls of a first gas pipe and a first gas guide pipe, and a second flow guide channel used for guiding overflow liquid is formed between the pipe walls of a second gas pipe and a second gas guide pipe. The burner has the advantages that the burner body is provided with the gas chamber which is independently arranged and the flame stabilizing chamber located below the gas chamber, so that the flame stabilizing structure is not affected by the gas chamber and can be automatically adjusted according to the combustion working condition of the gas chamber; the burner body can move downwards relative to the first gas guide pipe and the second gas guide pipe under the action of an external power source, then the first flow guide channel and the second flow guide channel are opened, and therefore overflowing liquid entering the ...

Moving target signal detection method and system for full-duplex flux-inductance integration

The invention discloses a moving target signal detection method and a moving target signal detection system for full-duplex communication and inductance integration, and the method comprises the following steps: S1, in a full-duplex communication and inductance integration platform, an OFDM communication and inductance integration transmitter transmits an OFDM continuous signal through an antenna; s2, transmitting the transmitted OFDM continuous signal to a communication user to complete a communication function; after a transmitted OFDM continuous signal encounters a dynamic sensing target and a static object, an echo signal is generated and transmitted to the OFDM communication and sensing integrated receiver, and a direct coupling self-interference signal leaked by the OFDM communication and sensing integrated transmitter also reaches the OFDM communication and sensing integrated receiver; and S3, receiving the signals through a receiving antenna by an OFDM (Orthogonal Frequency Division ...

Negative-pressure low-temperature internal circulation fruit and vegetable drying system

According to the negative-pressure low-temperature internal circulation fruit and vegetable drying system, a plurality of drying box units are placed on a support, the tail end of an air outlet pipeline of each drying box is connected to a liquid collecting tank through a vacuum pipeline, a condensation system is arranged in the middle of the pipeline, the liquid collecting tank is connected with a vacuum pump, and electromagnetic heaters are arranged at the bottoms of the drying boxes. Two products of fruit and vegetable dry food and fruit and vegetable hydrolat can be produced at one time, so that the preservation, the quality guarantee and other purposes of the products are improved, and the added value of the products is increased. And a flat electromagnetic heating drying unit structure is adopted, and a drying form combining electromagnetic heating and hot air heating is comprehensively adopted, so that the drying efficiency is greatly improved. The system is provided with an intelligent ...

METHOD FOR MANUFACTURING WATER-BASED ANTICORROSIVE COATING HAVING HIGH WEATHER RESISTANCE

A method for manufacturing a water-based anticorrosive coating having high weather resistance, comprising: adding an Al(OH)3 sol to a particle-type nano-SiO2 sol under a stirring condition, and aging to prepare an Al(OH)3 sol-coated composite silica sol; mixing absolute ethanol with deionized water, adjusting the pH value using a hydrochloric acid solution, adding KH570 and tetraethylorthosilicate, continuing to stir, and then adding the composite silica sol; and performing mixing and grinding, then mixing same with acetic acid and methyltrimethoxysilane and stirring to obtain a water-based anticorrosive coating having high weather resistance.

High-precision time delay estimation method in complex electromagnetic environment

The invention discloses a high-precision time delay estimation method in a complex electromagnetic environment, which comprises the following steps: S1, a signal transmitter adds a cyclic suffix and a synchronization sequence to the tail of a signal obtained by modulating a training sequence through OFDM (Orthogonal Frequency Division Multiplexing), and performs framing and up-conversion to obtain a radio frequency transmitting signal and transmits the radio frequency transmitting signal; s2, the signal receiver carries out down-conversion and time coarse synchronization on the received signal in sequence to obtain a received signal, and carries out frequency offset estimation and compensation on the received signal; s3, aiming at the received signal after the time-frequency coarse synchronization, the signal receiver performs conjugate multiplication on the training sequence of the received signal and a local training sequence through FFT transformation, and performs FFT time domain windowing ...

Core-shell SCR (Selective Catalytic Reduction) catalyst taking SSZ-39 molecular sieve as carrier as well as preparation method and application of core-shell SCR catalyst

The invention discloses a core-shell type SCR (Selective Catalytic Reduction) catalyst taking an SSZ-39 molecular sieve as a carrier as well as a preparation method and application of the core-shell type SCR catalyst, the catalyst takes SmMn-SSZ-39 as an inner core and an SO42-CeO2 film as a shell layer, and the core-shell type SCR catalyst is prepared from SmMn-SSZ-39, a Ce source, a quaternary ammonium salt ionic surfactant, hexamethylenetetramine, sulfuric acid, absolute ethyl alcohol and deionized water through an in-situ growth method. The prepared catalyst is beneficial to NH3-SCR catalytic activity, formation of ammonium nitrate and ammonium sulfate is inhibited, active sites of metal Sm and Mn are closed, generation of samarium sulfate and manganese sulfate is avoided, the tolerance of the catalyst to SO2 is effectively improved through interaction between the inner core SmMn-SSZ-39 and the shell layer SO42-CeO2, and the catalyst has the advantages of being high in catalytic activity ...

Bridge pier column replacement construction device and method

The invention particularly discloses a bridge pier column replacement construction device and method. Comprising the following steps that a settlement displacement observation point is arranged between a beam plate and a top tie beam, the settlement displacement observation point is used for obtaining deformation data between the beam plate and the top tie beam, and stability in the construction process is guaranteed according to the deformation data; a plurality of temporary supporting structures are uniformly arranged between the top straining beam and the ground; a plurality of brackets are arranged between the top straining beam and the beam plate; concrete of the beam plate support is broken and removed; the top straining beam is separated from the to-be-replaced pier column, and the to-be-replaced pier column is dismantled; a new pier column is built at the position of the pier column to be replaced; and the reinforcement cage erecting formwork, the support and the temporary supporting ...

REVERSE ROTATION WATER SPRAY-TYPE ANTI-STICKING DRILL PIPE SYSTEM AND USAGE METHOD THEREFOR

A reverse rotation water spray-type anti-sticking drill pipe system and a usage method therefor, said system comprising a front drill pipe (1), a water spray apparatus (2), a rotation apparatus (3) and a rear drill pipe (4) which are arranged sequentially. The front drill pipe (1) and the rear drill pipe (4) are internally provided with a through hole (5) on the axial direction. The water spray apparatus (2) comprises a first cylinder body (21) and a connecting body (22) which are interconnected, a side wall of the first cylinder body (21) is provided with multiple sets of water spray holes (23), limiting stoppers (24) are arranged at the top of the side wall of the first cylinder body (21), the connecting body (22) is fixedly connected to the front drill pipe (1), the connecting body (22) is also provided with a penetrating water transmission hole (25), and the water transmission hole (25) is connected to the through hole (5) and to the inside of the first cylinder body (21). The rotation ...

IGBT MODULE HEAT DISSIPATION MODULE

A heat dissipation module for an IGBT module comprises a radiator base plate (100). The radiator base plate (100) comprises a base plate body (10) and N heat dissipation columns (20). The base plate body (10) comprises a body portion (13) and a first surface layer (11) and a second surface layer (12) respectively provided on the opposing two surfaces of the body portion (13). The body portion (13) is made of aluminum silicon carbide. The N heat dissipation columns are arranged on the first surface layer (11) with space intervals, with one end of each heat dissipation column being fixed to the first surface layer (11) and the other end thereof being a free end, and the first surface layer (11) and the N heat dissipation columns (20) are all suitable for contact with cooling liquid. The heat dissipation module further comprises a copper clad laminate (200), which comprises a substrate (210), a first copper layer (220) and a second copper layer (230). The first copper layer (220) and the second ...

Explosion-proof isolation device for external shaft motor of spraying robot

The invention relates to the technical field of spraying robots, in particular to a spraying robot external shaft motor explosion-proof isolation device which comprises a non-explosion-proof motor and further comprises an explosion-proof shell arranged outside the non-explosion-proof motor. The adapter shaft is connected with the non-explosion-proof motor, extends out of the explosion-proof shell and is used for realizing that the non-explosion-proof motor is isolated in the explosion-proof shell and still can output power outwards; the air pipe quick connector is arranged on the explosion-proof shell and is used for being connected with an external air pipe to form a closed-loop explosion-proof system, so that the internal pressure of the explosion-proof shell is always greater than that of an external dangerous environment; and the safety pressure relief valve is arranged on the non-explosion-proof motor and is used for maintaining the pressure in the explosion-proof shell when the internal ...

REVERSE ROTATION WATER SPRAY TYPE ANTI-JAMMING DRILL PIPE SYSTEM AND USAGE METHOD THEREFOR

A reverse rotation water spray type anti-jamming drill pipe system and a usage method therefor, the system comprising a front drill pipe (1), a water spray apparatus (2), a rotation apparatus (3) and a rear drill pipe (4) which are arranged sequentially. The front drill pipe and the rear drill pipe are internally provided with through holes (5) in the axial direction. The water spray apparatus comprises a first cylinder body (21) and a connecting body (22) which are interconnected; a side wall of the first cylinder body is provided thereon with multiple sets of water spray holes (23), and limiting stoppers (24) are provided above the inner side wall of the first cylinder body; the connecting body is fixedly connected to the front drill pipe, and the connecting body is also provided thereon with a penetrating water transmission hole (25) which is in communication with the the through holes and the inside of the first cylinder body. The rotation apparatus comprises a second cylinder body ...

METHOD, APPARATUS AND SYSTEM FOR CONTROLLING CURRENT COLLECTOR

Disclosed are a method, apparatus and system for controlling a current collector. The method comprises: receiving a control instruction for at least one current collector on a railway vehicle, wherein the control instruction comprises at least one of the following: a first control instruction for controlling the contact between the current collector and a power supply rail, and a second control instruction for controlling the current collector so same disengages from the power supply rail; and according to the control instruction, controlling the current collector so same executes a shoe raising action and/or a shoe lowering action. The present invention solves the technical problems in existing railway vehicles of great wear and a reduction in the service life of a current collector caused due to the fact that a current collector shoe and a current collection arm of the current collector have fixed structures.

Curved ware of distribution lines drainage line pressure of scalable regulation

... 本实用新型公开了一种可伸缩调节的配电线路引流线压弯器，包括压弯器拧头和第一套管，所述压弯器拧头固定安装在第一套管的连接端上，所述第一套管的另一端为锁紧端头，且锁紧端头上设有凹槽，所述凹槽内固定设有锁紧环，所述第一套管的内腔穿插设有第二套管，且第二套管的撑紧端设在第一套管的内部，且螺丝头的下端紧贴叠合块设有螺丝帽，本实用新型结构通过将压弯器的连接杆设置成套管的形状，并且保证套管两端的管径大小不同，利用大管径套在小管径里，这样就可以使两根不同的管在伸缩的过程中会产生一个排斥力，同时利用锁紧环将两根套管锁死，避免了在施工过程中因压弯器本身长度不够而无法完成任务，一定程度上提高了压弯器的实用性。 ...

For screw cutting of the cutting device

... 本发明提供种用于螺纹切削的切削装置，所述切削装置包括机架和活动机构，其中，所述活动机构与所述机架相连接，所述活动机构能在所述机架上滑移，所述活动机构包括旋转机构，所述旋转机构安装在所述活动机构上，用以螺纹切削刀具的切换和螺纹的修复。本发明所述的切削装置，结构简单、操作方面，而且所述切削装置中更换刀片的方式简单，通过更换不同的刀片可以生产出不同的螺纹；还可以修复螺纹表面的毛刺，对于多次打磨后的刀片，只需通过所述三杆定位器的调整，可以多次使用，提高了所述刀片的使用率。 ...

Stove burner

The stove burner comprises an inner ring fire cover and an ignition structure, the outer wall face of the inner ring fire cover is provided with an inward-concave ignition groove, the ignition structure is located in the ignition groove, a plurality of ignition holes are formed in the inner ring fire cover and extend outwards into the ignition groove from the inner wall face of the inner ring fire cover, and the ignition holes face the ignition structure. The ignition groove is formed in the inner ring fire cover, so that the ignition structure can complete ignition in the ignition groove, an ignition environment is provided for the ignition structure, and the space of a stove burner is saved as the ignition structure is limited and placed in the ignition groove; the ignition holes in the inner ring fire cover extend outwards into the ignition groove from the inner wall face of the inner ring fire cover and all face the ignition structure, it is guaranteed that fuel gas can smoothly flow ...

Device for simulating radial vibration of sealing surface of nuclear main pump mechanical seal test bed

The invention relates to the technical field of nuclear power mechanical seal, and particularly discloses a nuclear main pump mechanical seal test bed sealing surface radial vibration simulation device, which comprises an upper eccentric shaft sleeve and a lower eccentric shaft sleeve which are respectively arranged at the upper end and the lower end of a pump shaft of a nuclear main pump mechanical seal test bed; the eccentricity of the inner hole circle center and the outer edge circle center of the upper eccentric shaft sleeve and the lower eccentric shaft sleeve is the same, and the eccentricity of the upper eccentric shaft sleeve and the lower eccentric shaft sleeve is paired in the same direction; the pump shaft is driven to rotate through the driving device, and then the vibration working condition of the mechanical seal of the nuclear main pump mechanical seal test bed is simulated through the upper eccentric shaft sleeve and the lower eccentric shaft sleeve. The device provided ...

Preparation method of novel nano structure of superconducting thin film

The invention discloses a preparation method of a novel nano structure of a superconducting thin film, which comprises the following steps: firstly paving an AAO template on the surface of the thin film, then determining punching areas, and finally forming a porous structure with specified aperture and period in a plurality of selected punching areas through etching. The thin film is yttrium barium copper oxide (YBCO) or niobium nitride (NbN). According to the local punching nanometer processing technology, the part which does not need to be punched is fully protected, and the technology is simple and effective; a designated punching area can be in any shape, meanwhile, large-area selective punching can be achieved, and most micro-nano machining technologies cannot achieve punching.

WIRELESS EARPHONE PAIRING METHOD AND DEVICE AND WIRELESS EARPHONES

The present invention relates to the technical field of portable listening devices, and disclosed thereby is a wireless earphone pairing method, which is used to solve the problems in existing wireless earphone pairing processes of user participation level being low and the progress of pairing being unknown. The method comprises: when a first wireless earphone detects a preset event for triggering a pairing operation, turning on a BLE pairing broadcast; when receiving a BLE connection request sent by a terminal according to the BLE pairing broadcast, establishing a BLE connection to the terminal; receiving pairing interaction information sent by the terminal by means of the BLE connection, wherein, the pairing interaction information comprises wireless addresses of two wireless earphones; and using the pairing interaction information to perform a pairing operation; in the present method, a user may participate in the process of pairing with wireless earphones by means of a terminal, and ...

Array balance detector integrated with SOI waveguide

The invention relates to an array balance detector integrated with an SOI waveguide, and belongs to the technical field of optical communication active devices and optical interconnection devices. The invention provides an organic bonding technology, an auxiliary bonding mode of an intermediate medium (BCB glue) is adopted, an InGaAsPIN balance detector photosensitive chip is bonded on an SOI waveguide structure in an inverted buckling mode through a high-precision alignment technology, the bonding layer is lower than 150 nm, the bonding effect is achieved through thermoset or thermoplasticity of a high-molecular polymer, and the bonding strength of the InGaAsPIN balance detector photosensitive chip is greatly improved. A micro-nano grating is arranged to lead optical signals out of the SOI waveguide vertically and upwards, and the optical signals enter the balance detector. By means of the measures, high-precision optical coupling heterogeneous integration of the PIN photosensitive chip ...

Multi-thread local signing method, system and device based on WASM and medium

The invention discloses a multi-file local signing method based on a WASM, and the method comprises the steps: starting a thread for each to-be-signed file, checking all signing positions of the to-be-signed file, adding corresponding signing position pictures to form a to-be-processed task list, triggering and executing signing tasks according to the sequence of the to-be-processed task list, the back-end server obtains signing position information according to the task and returns the signing position information to the interaction layer; the interaction layer determines a signature picture according to signature bit information, acquires a corresponding file according to a to-be-processed task list sequence, calculates file hash, and transmits the file hash and corresponding signature bit data into the WASM service layer in sequence; the WASM service layer creates a file signature domain; the rear-end server returns signature data of a signature bit, calculates a signature value according ...

Gypsum board capable of being bent at will

The invention relates to a gypsum board capable of being bent at will and a preparation method thereof. When used, the gypsum board capable of being bent randomly can be bent randomly after being soaked in water for two or three minutes. The preparation method of the gypsum board capable of being bent at will comprises the following steps: (1) shredding, soaking and pulping wood pulp fibers; (2) adding water into the calcined gypsum, and adding an additive to obtain two-water gypsum slurry; (3) adding the treated wood pulp into the gypsum slurry in proportion; (4) forming (two forming modes of a beater-addition method and a slurry flowing method are generally used); and (5) carrying out steam curing to prepare the gypsum board capable of being bent at will.

Fault control method and device, equipment and storage medium

The embodiment of the invention provides a fault control method, device and equipment and a storage medium, and the method comprises the steps: respectively obtaining OSES heartbeat signals of double controllers and PWM signals inputted by a CPLD, and when any controller in the double controllers breaks down, controlling the OSES heartbeat signals of the double controllers and the PWM signals inputted by the CPLD; controlling the other controller to receive the control right of the fan and controlling the CPLD of the failed controller to output a constant high-level voltage, controlling the CPLD of the double controllers to output the constant high-level voltage under the condition that the double controllers fail and the OSES heartbeat signal of the slave controller is normal, and controlling the CPLD of the double controllers to output the constant high-level voltage under the condition that the double controllers fail and the OSES heartbeat signal of the slave controller is abnormal.

Mechanical seal with wear detection device

A mechanical seal with an abrasion detection device comprises a graphite ring and a static ring, the graphite ring is installed on a graphite ring seat, the static ring is installed on a static ring seat, a spring is further installed on the static ring seat, and the static ring is tightly attached to the graphite ring. The pump shaft is connected with the shaft sleeve transmission key, torque is transmitted to the shaft sleeve through the shaft sleeve transmission key, the shaft sleeve is connected with the graphite ring seat transmission key, the shaft sleeve transmits the torque to the graphite ring seat through the graphite ring seat transmission key, the graphite ring seat is connected with the graphite ring, and the graphite ring seat transmits the torque to the graphite ring. Through the pre-tightening effect of the spring and the sealing shell, the static ring is tightly attached to the graphite ring.

Design method of mixed-flow type multiphase pump impeller

The invention provides a design method of an impeller of a mixed-flow type multiphase pump. By the adoption of the design method, structural design of the impeller of the mixed-flow type multiphase pump can be achieved under the given working condition. The mixed-flow type multiphase pump impeller comprises a front cover plate, a rear cover plate and a plurality of blades arranged between the front cover plate and the rear cover plate in an array mode in the circumferential direction. The design method comprises the following steps: firstly, designing front and rear cover plate contours; then drawing an axial surface streamline capable of passing water-passing section area verification according to the designed contour lines of the front cover plate and the rear cover plate; designing a blade contour according to the drawn axial surface streamline and blade design parameters; and finally, drawing a wood pattern, and modeling the wood pattern by using three-dimensional software to obtain ...

Transaction method and system of digital RMB wallet

The invention discloses a transaction method and system of a digital RMB wallet, which is applied to first electronic equipment and belongs to the technical field of Internet, and comprises the following steps: receiving first payment information and a first signature sent by second electronic equipment, and sending second payment information to third electronic equipment, the first electronic device receives second payment information, performs second signature on the second payment information by using a private key stored in the first electronic device, sends the second signature and the second payment information to the third electronic device, and receives the second payment information, the second signature and a third signature sent by the third device; under the condition that the first electronic equipment is networked, first information and second information are sent to a server, so that the server verifies the first signature, the second signature and the third signature, and ...

5G NETWORKING SYSTEM BASED ON MILLIMETER-WAVE AND MICROWAVE MULTIPLE-INPUT MULTIPLE-OUTPUT RELAY

Provided by the present application is a 5G networking system based on a millimeter-wave and a microwave multiple-input multiple-output relay, comprising: a millimeter-wave base station, a relay node arranged outdoors and an indoor terminal, wherein the millimeter-wave base station is used for providing an interface of a core network; the millimeter-wave base station communicates with the relay node by means of a millimeter wave channel; and the relay node communicates with the indoor terminal by means of an MIMO channel. By means of the present application, millimeter wave communication outdoors is achieved by means of a relay node in combination with millimeter wave technology and MIMO technology, and 5G target data throughput and connectivity requirements are met. MIMO communication is carried out from outdoors to indoors; indoor and outdoor signals may be transmitted at high speed reliably; the resources of each channel in a 5G network may be full used, and the advantages of different ...

Anti-slip mining gravel transportation device

The invention belongs to the technical field of conveying devices, and particularly relates to an anti-sliding mining gravel conveying device. Comprising a mounting box and a supporting frame, a conveying mechanism is arranged at the upper end of the supporting frame, an arc-shaped baffle matched with the conveying mechanism in position is fixedly mounted at the upper end of the supporting frame, a spraying mechanism is arranged on the right side of the upper end of the supporting frame, and one end of the supporting frame extends into the mounting box; a feeding opening is formed in the upper end of the mounting box, a material receiving frame is fixedly mounted in the feeding opening, the discharging end of the spiral feeding frame is located at the upper end of the conveying mechanism, a supporting assembly matched with the spiral feeding frame is arranged on the bottom side of the mounting box, and a material guiding assembly matched with the spiral feeding frame in position is mounted ...

SMART GATE PASSAGE SYSTEM AND METHOD FOR COLLECTING INFORMATION OF VEHICLE PASSING THROUGH PASSAGE

A smart gate passage system and a method for collecting information of a vehicle passing through a passage. The smart gate passage system comprises two or more of a vehicle identification recognition module (3), a vehicle outline measurement module (2), a vehicle weight collection module (5) and a vehicle chassis scanning module (4). The vehicle outline measurement module (2) is applicable to collection of outline information of a vehicle. The vehicle identification recognition module (3) is applicable to recognition of an identification of the vehicle and/or collection of driver information of the vehicle. The vehicle chassis scanning module (4) is applicable to collection of chassis information of the vehicle. The vehicle weight collection module (5) is applicable to collection of weight information of the vehicle. The smart gate passage system and the collection method of the invention enable comprehensive collection of feature information of a vehicle, such that the vehicle can pass ...

POSITIONING DATA GENERATION METHOD, APPARATUS, AND ELECTRONIC DEVICE

A positioning data generation method, an apparatus and an electronic device. Said method comprises: acquiring laser point cloud data of a road and/or both sides of the road within a preset area range (S310); extracting, from the laser point cloud data, laser point data of key points of a target object on the road and/or both sides of the road, the target object being a road object that is easily identified on the road and/or both sides of the road and has stable attributes (S320); and storing the extracted laser point data of the key points as positioning data of the road (S330). The method is able to generate positioning data for high precision positioning with a small amount of data.

Judgment method and device for refrigerant overcharge of air conditioner, air conditioner and storage medium

The invention provides an air conditioner refrigerant overcharge judgment method and device, an air conditioner and a storage medium, the method comprises the steps that first data, a first threshold value and a second threshold value are obtained, the first data comprise at least two pieces of temperature data, and each piece of temperature data is collected by temperature collecting devices installed on different branch liquid pipes of a condenser; all the temperature data are mutually analyzed and calculated, a calculation result is obtained, the calculation result is compared with the first threshold value and the second threshold value, and a judgment result about whether the refrigerant is overcharged or not is obtained. According to the method, whether the refrigerant is overcharged or not is judged according to the characteristic that the temperatures of outlets of the liquid pipes on the upper portion and the lower portion of the condenser are greatly different due to the fact ...

Cup holder for seat

The invention relates to the technical field of automobiles, and particularly discloses a seat cup stand which comprises a cup stand body, a cup stand frame, a metal plate support, a left guide rail and a right guide rail, the left guide rail is fixedly connected with the cup stand frame and located on one side of the cup stand frame, and the right guide rail is fixedly connected with the cup stand frame and located on one side of the cup stand frame. The left guide rail and the right guide rail are rotationally connected with the metal plate support and located on one side of the metal plate support, and the cup holder body is rotationally connected with the metal plate body and located on one side of the metal plate support. According to the cup holder, the appearance of the seat armrest can be improved, the risk that sundries enter the cup holder can be reduced, when the cup holder and the cup holder body are opened, the clamping stability is improved, a cup is prevented from being disengaged ...

Water layer multiple wave prediction method and device, computing equipment and storage medium

The invention discloses a water layer multiple prediction method and device, computing equipment and a storage medium. The method comprises the steps of determining an associated detector of a target detector; calculating inclination factors of the associated detector and the target detector and propagation duration of seismic waves from the associated detector to the target detector, and acquiring seismic wave data of the associated detector at corresponding first time; calculating the disturbance of the associated detector to the target detector according to the inclination factors of the associated detector and the target detector, the propagation duration of the seismic wave propagating from the associated detector to the target detector and the seismic wave data of the associated detector at the corresponding first time; and according to the sum of the disturbances of the associated detectors to the target detector, obtaining the water layer multiple data of the target detector at ...

LASER MARKING MACHINE AND AUTOMATIC FOCUSING AND MARKING METHOD THEREFOR

Disclosed is a laser marking machine, comprising a rack (2) and a saddle (3) arranged on the rack and capable of moving up and down along the rack, wherein a laser marking component (4) is arranged on the saddle. The laser marking machine further comprises a controller (7) and a first driving component (6) arranged on the rack and used for driving the saddle to move up and down along the rack, and also comprises a distance measurement component (5) arranged on the laser marking component, wherein the distance measurement component comprises a laser indicator (51) and a photosensitive element (55); the laser indicator is used for emitting laser onto a surface of a marked object (10); the photosensitive element is used for receiving laser reflected by the surface of the marked object and sending a signal to the controller; the controller computes a perpendicular distance between the surface of the marked object and the distance measurement component according to the signal; and the driving ...

Intelligence heat energy metering device based on singlechip

... 本实用新型公开了一种基于单片机的智能热能计量装置，包括与单片机主控制器连接的流量测量模块、进水口温度测量模块、出水口温度测量模块和IC卡管理模块；电动阀通过单片机主控制器由IC卡管理模块读取的IC卡的剩余热量信息控制开闭，所述电动阀设置在进水口，所述单片机主控制器还连接LCD显示模块和报警模块，所述LCD显示模块用于显示热量信息和故障信息，所述报警模块用于当IC卡的剩余热量信息低于阈值时报警。集自动供热、自动计量、自动收费、自动控制、预付费管理及显示报警等多种功能于一体的全新概念的智能水表，功耗超低，计量准确。 ...

Automobile -used many gas receivers are concentrated and are arranged mechanism

... 本实用新型公开了一种车用多储气筒集中布置机构，其中，安装梁穿设在第一通孔和第二通孔中，第一左上凹槽、第一左下凹槽、第一右上凹槽和第一右下凹槽分别与第二左上凹槽、第二左下凹槽、第二右上凹槽和第二右下凹槽一一对应，并分别形成用于设置第一储气筒、第二储气筒、第三储气筒和第四储气筒的第一安装腔、第二安装腔、第三安装腔和第四安装腔，四个储气筒外侧分别设有第一抱箍、第二抱箍、第三抱箍和第四抱箍。本实用新型提供的车用多储气筒集中布置机构能实现多个储气筒的集中放置，功能集成度高，不仅能节省了用来分散安装多个储气筒所需的原材料，还降低了多个储气筒的安装工时，有助于降低操作工人的劳动强度，大大提高了生产效率。 ...

Corrugated board bending device and bending method thereof

The corrugated board bending device comprises a bottom plate, one side of the upper end of the bottom plate is fixedly connected with a fixing plate, one side of the upper end of the fixing plate is fixedly connected with a fixing frame, a driving assembly is installed in the fixing frame, a hydraulic cylinder is installed at the lower end of the driving assembly, and the lower end of the hydraulic cylinder is fixedly connected with a mounting plate. A plurality of sliding frames are installed at the lower ends of the adjusting assemblies and the lower end of the mounting plate, elastic pieces are fixedly connected into the sliding frames, and the lower ends of the elastic pieces are fixedly connected with sliding plates. According to the corrugated paper bending device, a plurality of sliding plates and pressing plate structures which are arranged at the lower end of the mounting plate and can move respectively are used, so that the corrugated paper can be bent as required when the pressing ...

METHOD FOR PREPARING SACUBITRIL INTERMEDIATE

Disclosed in the present invention is a synthesis method for a sacubitril intermediate, the synthesis method belonging to the chemical-pharmaceutical field and comprising the following steps: performing a reaction of glycine and di-tert-butyl dicarbonate as starting materials under alkaline conditions, to effect dehydrogenation and amino protection, then performing substitution, deprotection and salification by means of a "one-pot method" with a compound of formula II under the action of a chiral catalyst, so as to obtain a chiral intermediate compound of formula III. The compound of formula III is reduced, refined and salified to obtain a compound of formula IV, and the compound of formula IV and di-tert-butyl carbonate are subjected to amino protection to produce a target product (R)-tert-butyl (1-([1,1'-biphenyl]-4-yl)-3-hydroxypropane-2-yl)carbamate of formula I. The raw materials and reagents required for the synthesis method of the sacubitril intermediate provided in the present invention ...

CELL NETWORKING STRUCTURE DEVELOPED IN 5G NETWORK

The present application provides a cell networking structure developed in a 5G network, comprising a core network, a 5G millimeter wave base station, an M4R base station, and a MIMO network; the core network being connected to the 5G millimeter wave base station by means of millimeter waves or optical fibers; the 5G millimeter wave base station being connected to the M4R base station by means of millimeter wave links; the M4R base station being used for processing a network signal sent by the 5G millimeter wave base station to enable the network signal to conform to a MIMO transmission protocol, and sending the processed network signal to the MIMO network. The present application develops a 5G network, and connects the 5G millimeter wave base station to the MIMO network by means of the M4R base station, so that the 5G network can be used in cells and indoors by means of advantages of MIMO, providing indoor users with a high speed internet access experience, constructing 5G wireless communication ...

ELECTRIC BOOSTER BRAKE ASSIST SYSTEM FOR ELECTRIC VEHICLE

An electric booster brake assist system for an electric vehicle comprises an electric vehicle auxiliary power supply (1), a vacuum pump (2), a brake vacuum booster (3) and a vacuum air tank (4). Said brake vacuum booster (3) is connected with the vacuum air tank (4) by vacuum pipelines (5), and then connected with the vacuum pump (2) by the vacuum pipelines (5). Said vacuum air tank (4) is provided with a vacuum pressure detector (6) connected with a vacuum pump delay control switch (7) which is electrically connected with the electric vehicle auxiliary power supply (1) and the vacuum pump (2). Said brake assist system detects the vacuum pressure of the vacuum air tank (4) by the vacuum pressure detector (6). When the pressure of the vacuum air tank (4) is below a set value, the system does not immediately cut off the power supply of the electric vacuum pump (2), but enables the electric vacuum pump (2) to continue to work until a set delay time, and enables the pressure of the vacuum air ...