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ELECTROLYTE FOR ALUMINIUM ELECTROLYTIC CAPACITOR AND ALUMINIUM ELECTROLYTIC CAPACITOR USING ELECTROLYTE

Provided are an electrolyte for an aluminium electrolytic capacitor and an aluminium electrolytic capacitor using the electrolyte. The electrolyte comprises a main solute and a main solvent, and further comprises an additive represented by the following structural formula 1, wherein R1 and R2 are each independently selected from -CH3, -CH2CH3 or -OH, and R3 and R4 are each independently selected from -(CH2CH2O)mH or -H, and wherein n and m are any integer between 1-10000. The electrolyte has a very strong anti-corrosion performance, and can maintain a longer load life in the case of a higher chloride ion content. No indication of corrosion is found when the capacitor is dissected.

A weakening the motor torque pulsation of the stator structure

... 本发明提出了种新型削弱电机转矩脉动的定子结构，定子铁心包括滚棒和外开槽的定子冲片，定子冲片包括沿圆周方向均匀分布的若干个定子齿，定子齿之间设有定子槽，定子齿包括定子内齿和定子外齿，定子内齿之间采用闭口槽结构、相互连接，定子外齿之间设有预留槽，预留槽内设有滚棒，滚棒的两端设有端部挡板；至少个定子外齿的端部设有限位齿，限位齿端部设有橡胶垫；机壳上设有与限位齿相配合的限位槽；预留槽和限位槽内设有润滑油，能够减弱定子摆动的阻力。本发明能够利用定子轻微摆动替代转子输出转矩的脉动，有效削弱电机的转矩脉动，降低了电机运行时的噪声；解决了电机下线工艺困难的问题，减少了电机加工的时间，扩大企业经济效益。 ...

Detachable drainage tube binder

... 本实用新型属于医疗领域，具体涉及医疗腹带。一种可拆卸的引流管腹带，包括腹带本体和装在腹带本体两侧的引流装置，把引流装置设在腹带两侧，通过腹带进行固定，利用敷贴或者绑绳可以实现不同患者的使用，腹带设计成镂空状，散热效果好；设置滑动杆和滚道，这样对两侧压紧块向内压紧引流管只需要一个开关操作，压紧效果比较好；增加绑带对腹带本体加固，这样就不会引起偏离；将腹带本体设置为可拆卸结构，并且压盖可从腹带本体上取下单独压紧固定座。 ...

Bent ditch ball bearing processingequipment

... 本实用新型涉及种曲沟球轴承加工装置，属于通用机械零件领域。为克服曲沟球轴承加工需要高端设备的弊端，公开了种曲沟球轴承加工装置。本实用新型的技术方案是：将曲沟轴承内、外圈夹持在卡盘上，在卡盘的下方设置与要加工的曲沟相似的曲沟模板，曲沟模板下设置组钢珠，转动曲沟模板和卡盘，使钢珠在曲沟模板的沟槽内转动，推动夹持在卡盘上的轴承内、外圈转动的同时，上下运动，用球形铣刀完成曲沟球轴承内外圈曲沟的加工。本实用新型公开的曲沟球轴承加工装置有以下优点：(1)同装置可以加工相同曲线形状，不同尺寸的轴承内圈和外圈；(2)可以均化单个曲沟加工的相位误差，提供加工精度；(3)结构简单，加工成本低。 ...

Tread grinding method and device for tire pattern deep groove and performance correlation

The invention belongs to the technical field of tire manufacturing, and particularly relates to a tire tread polishing method and device for tire pattern deep groove and performance correlation. The method comprises the following steps: reserving maximum deep grooves in two smooth tire crowns, and carving patterns on the surfaces of the tires; the tire with the engraved patterns is assembled, inflated and parked and then placed on a bearing of a double-station tread grinding machine, and loads are loaded; the abrasion degree of one tread pattern deep groove is set to be reduced by 1 mm every time, the abrasion degree of the other tread pattern deep groove is set to be reduced by 0.5 mm for the first time, and the abrasion degree is reduced by 1 mm every time from the second time to the end of grinding; and when the depths of the two tire patterns are reduced to be less than half of the initial depth, grinding is stopped. According to the method, tires with different pattern groove depths ...

Method for constructing direct power control model of reluctance brushless doubly-fed generator

The invention discloses a construction method of a direct power control model of a reluctance type brushless doubly-fed generator, and aims to solve the problem of distortion of control current of a direct power control model of an existing reluctance type brushless doubly-fed generator. The method comprises the following steps: (1) establishing a mathematical model for direct power control of the reluctance type brushless doubly-fed generator; (2) designing a novel reaching law integral sliding mode variable structure controller; (3) stability analysis based on a Lyapunov function is carried out, and the range of control model parameters is obtained; and (4) performing simulation verification, and correcting parameters of the control model. The direct power control model constructed by the method is high in control precision and high in response speed, and has good dynamic and static performance and robustness.

Method and system for rapidly detecting pesticide residues in food based on cloud model resource library

The invention discloses a method and system for rapidly detecting pesticide residues in food based on a cloud model resource library, and the system comprises a portable detection terminal, a man-machine interaction terminal, and a cloud data platform. The portable detection terminal comprises a protective shell, and a Raman probe, a spectrum acquisition module, a light source module, a power supply module, a control processing system, a sensor module, a communication module and a sample loading unit which are arranged in the protective shell; raman spectrum signals of a detected sample are collected in the portable detection terminal, the man-machine interaction terminal and the cloud data platform are utilized to carry out cloud storage on the collected data and match the collected data with a database in the cloud data platform, the types of hazardous substances are identified, and data analysis and calculation are carried out according to a built-in cloud model. According to the device ...

Cross-chip interconnection system and LVDS (Low Voltage Differential Signaling) parallel data software and hardware collaborative calibration method

The invention discloses a cross-chip interconnection system and an LVDS parallel data software and hardware collaborative calibration method, and relates to the field of multi-chip networks, the cross-chip interconnection system comprises an auxiliary calibration bare core provided with an auxiliary calibration inter-chip interface, and a calibratable bare core provided with a calibratable inter-chip interface; according to the method, hardware automatic calibration or software calibration can be selected according to the actual condition of the initial time sequence difference of each channel, so that the calibration process is more flexible and controllable. When the initial time sequence difference is small, all data channels can be aligned with the clock channel generally by using hardware to automatically calibrate and adjust the time delay of the receiving end of the clock channel, and high calibration efficiency is achieved. Otherwise, when the initial time sequence difference is ...

Ultrahigh-water-pressure-resistant environment-friendly shield tail sealing grease and preparation method thereof

The invention belongs to the field of tunnel and underground engineering construction materials, and particularly relates to ultrahigh-water-pressure-resistant environment-friendly shield tail sealing grease and a preparation method thereof. The preparation method comprises the following steps: sequentially adding the base oil and the tackifier into a kneading machine, setting the stirring temperature to be 50-80 DEG C, and uniformly stirring for 30 minutes to obtain a mixed solution; adding a thickening rheological agent, and uniformly stirring for 30 minutes to obtain a first mixture; sequentially adding natural fibers, a filling agent and a mildew preventive, and uniformly stirring for 60-90 minutes to obtain a mixture II; the second mixture is filtered through a filter with the aperture being 10-18 mm, and the ultrahigh-water-pressure-resistant environment-friendly shield tail sealing grease is obtained. According to the ultrahigh-water-pressure-resistant environment-friendly shield ...

Noodle pressing device convenient for food processing and adjustment

The utility model discloses a dough pressing device convenient to adjust during food processing, and relates to the technical field of food processing. The noodle maker comprises a lifting mechanism, a rotating mechanism and a noodle pressing mechanism, and is characterized in that a mounting frame arranged in the lifting mechanism is fixedly connected to the upper side of a base, electric telescopic rods are fixedly connected to the centers of the two ends of the inner side of the mounting frame, and one end of each electric telescopic rod is fixedly connected to the lower side of a supporting plate; a first servo motor arranged in the rotating mechanism is fixedly connected into the machine box through bolts, one end of the first servo motor is fixedly connected with a shaft rod, the shaft rod is rotationally connected with a rotating rod through a coupler, the rotating rod penetrates through the machine box and a supporting column, and a baffle is fixedly connected into a mounting shell ...

Automatic tray loading and unloading machine

The invention relates to the technical field of transportation and storage, and particularly discloses an automatic tray loading and unloading machine which is characterized in that a plurality of trays are placed on a placement frame at intervals in the vertical direction, a conveying assembly comprises two conveying belts, a containing space is formed between the two conveying belts, and a plurality of bearing plates are arranged on a rotating frame at intervals in the length extension direction of the rotating frame; the multiple bearing plates are always in the horizontal state, the rotating frame is suitable for carrying the multiple trays to rotate from the vertical direction to the direction close to the conveying belts, so that the rotating frame is contained in the containing space, and then the multiple trays are erected on the two conveying belts; the rotating frame is further suitable for carrying the multiple trays to rotate in the vertical direction from the direction close ...

DC-DC buck converter sliding mode control algorithm based on improved discrete reaching law

The invention relates to the technical field of electrical automation equipment, in particular to a DC-DC buck converter sliding mode control algorithm based on an improved discrete reaching law. Comprising the following steps: step 1, constructing a state-space equation of a DC-DCbuck converter with parameter uncertainty; step 2, constructing a discretization error system; 3, improving a discrete reaching law; 4, solving a sliding mode control law; step 5, estimating non-matching disturbance; step 6, analyzing feasibility of the control algorithm; comprising existence and reachability analysis of the improved discrete reaching law and system robustness analysis. The invention aims to solve the problem of output voltage tracking of a discrete DC-DC converter system with non-matching disturbance.

Testing system is ground with indulging telephone -moving structure to anti dashing of concrete

... 本实用新型公开了一种混凝土抗冲磨试验系统用纵移机构，包括外固定机架和搅拌用电机；外固定机架顶部的左右两侧分别向下连接有第一电动推杆和第二电动推杆，第一电动推杆的伸出端和第二电动推杆的伸出端均与一滑动支撑板固定连接；外固定机架固定连接有固定支撑板；固定支撑板与外固定机架顶部之间固定连接有四根竖向设置的滑杆，滑杆滑动穿过所述滑动支撑板；搅拌用电机支撑在滑动支撑板上；采用本实用新型，只需使用第一电动推杆和第二电动推杆即可方便地整体提升或降下搅拌用电机及其轴所连接的搅拌桨，从而无须每次安装拆卸混凝土试件时都费时费力地安装拆卸搅拌桨，非常方便、省时省力，提高了试验效率，降低了劳动强度。 ...

ELECTROLYTE SOLUTION FOR USE IN ALUMINUM ELECTROLYTIC CAPACITOR AND ALUMINUM ELECTROLYTIC CAPACITORS USING THE ELECTROLYTE SOLUTION

The electrolyte solution comprises electrolytes (A) and an organic solvent (B). The electrolytes (A) comprise an electrolyte (C) and an electrolyte (D). The electrolyte (C) consists of cations (E) and alkyl phosphate anions. The electrolyte (D) consists of cations (F) and phthalic acid anions. The electrolyte solution is capable of concurrently producing high specific conductivity and a high spark voltage and, at the same time, implements the aluminum electrolytic capacitor obviating concerns about corrosion of capacitor components.

Double-layer structure robust predictive control method

The invention relates to a prediction control method for double-layer structure robustness, and the method comprises the steps: obtaining an optimal steady-state target through the calculation of an upper steady-state target calculation layer, introducing a self-adaptive robust parameter, and converting the optimal steady-state target into an optimal steady-state interval; the lower dynamic control layer adopts an interval prediction controller to replace a traditional constant value controller; performance parameters of a double-layer structure prediction controller serve as input of a robust parameter optimizer, robust parameters are dynamically adjusted on line according to performance fuzzy satisfaction of the controller, and then robustness of double-layer structure prediction control is improved. According to the method, the robust parameters are adjusted in a self-adaptive mode, the number of adjustment of the controller parameters is not increased, the controller is more convenient ...

VSC-MTDC system multi-point DC voltage no-difference coordination control method

The invention provides a VSC-MTDC system multi-point direct current voltage indifference coordination control method, and aims to solve the technical problem of direct current voltage deviation caused when a converter station adopts a traditional droop control method to consume unbalanced power. According to the invention, unbalanced power is reasonably distributed according to the power margin of the converter station, a droop curve is translated, and no-difference adjustment of direct-current voltage is realized; the control system collects the active power value of the non-droop converter station and calculates the power disturbance quantity borne by the droop converter station; judging whether the power disturbance quantity is equal to 0; according to a power balance distribution method, taking the power disturbance quantity as a feedforward compensation quantity, distributing the power disturbance quantity to each droop converter station according to a power margin, and translating ...

Inter-chip Worm-Hole flow control mechanism-oriented extensible high-speed interconnection bare core architecture

The invention relates to the technical field of multi-bare-core integrated systems, in particular to an extensible high-speed interconnection bare-core architecture oriented to an inter-chip Worm-Hole flow control mechanism, which is mainly oriented to a ring network topology structure, that is, a plurality of bare cores form a ring topology, and the number of the bare cores is larger than that of the ring topology. A network-on-chip in each bare chip adopts double virtual channels and an XY-dimensional sequence routing mechanism to realize no deadlock in the chip, data transmission among the multiple bare chips adopts a Worm-Hole flow control mechanism, when data is transmitted from the current bare chip to the adjacent bare chip, the data can pass through a virtual channel arbitration distributor in the current bare chip, and the adjacent bare chip is subjected to data transmission. The virtual channel arbitration distributor is used for arbitrating data of two virtual channels into one ...

Knowledge representation learning method based on relation rotation

The invention discloses a knowledge representation learning method based on relation rotation. Comprising the following steps: (1) carrying out initialization vector representation on entities and relationships in a knowledge graph; (2) constructing a certain proportion of negative samples by using positive samples in a training set through a method of replacing head and tail entities and relationships; (3) substituting the positive samples and the negative samples obtained in the step (2) into a model, (4) according to the loss in the step (3), updating the vector representation of the entity and the relationship through an Adam optimizer, and (5) repeating the steps (2)-(4) until the number of iterations reaches the preset maximum number of iterations, and finally outputting the vector representation of the entity and the relationship to complete knowledge representation learning. According to the method, various relation modes in the complex knowledge graph can be effectively modeled ...

Peptide immunogenicity prediction and identification system and method based on machine learning

The invention discloses a peptide immunogenicity prediction and identification system and method based on machine learning. The system comprises a data coding module, a neural network training module, an integrated learning training module and an immunogenicity prediction and/or identification module.

Intelligence machine of ordering

... 本实用新型涉及一种智能点餐机，包括盒体，盒体内设有内轨，内轨内设有抽拉板，抽拉板的左端设有挡板，挡板的右侧壁的上下两端各设有一个磁垫，抽拉板内设有12个内槽，内槽的顶面设为顶盖，顶盖的左端设有盖轴，内槽内设有5个芯片卡，顶盖的顶面上设有标签栏，盒体顶面左上位置设有LED显示屏，LED显示屏的右侧设有凹槽，凹槽底部设有读卡器，凹槽下方设有操作指示图，LED显示屏的左下方设有按键板，按键板的右侧设有扩音器，所述的盒体的右侧内壁上设有无线信号发射器，本实用新型无需服务员到场便能够实现点餐功能，大大节约了顾客用餐前的等待时间，用芯片卡点餐更加方便易懂，使点餐环节的趣味性更高，间接增加了顾客整体用餐体验的好感度。 ...

Rapid gas pollution derivative detection equipment based on near infrared spectrum technology

The invention discloses rapid gas pollution derivative detection equipment based on a near infrared spectrum technology. The rapid gas pollution derivative detection equipment comprises a non-penetrating semi-open box body (1), a near infrared filter (2), a smart phone (3) with spectrum processing software and a camera module, a sample detection mobile platform (4), a near infrared emission platform (5) and a near infrared emitter (6), all the components are connected compactly, and the mechanical structure is reliable. And the positions of the sample detection table and the near-infrared emission table can be quickly adjusted through the knob, so that the shooting module of the Android smart phone is fully utilized. The device is simple in overall disassembly, convenient and easy to operate and learn, is combined with software of an Android smart phone, can be used for rapidly and intelligently detecting the gas pollution derivative, and has a wide application prospect.

Vibration reduction structure of vehicle-mounted electronic vacuum pump

The invention belongs to the technical field of vacuum pumps, particularly relates to a vibration reduction structure of a vehicle-mounted electronic vacuum pump, and aims to solve the problem that a vibration reduction structure in the existing technical scheme is not provided with a device for adjusting buffer force, so that the vacuum pump cannot be well protected if the elastic force is too hard or too soft after the vacuum pump is mounted and supported. According to the technical scheme, the device comprises a base, two supporting columns are symmetrically and fixedly installed at the top of the base, supporting covers are slidably connected to the supporting columns, the sides, close to each other, of the two supporting covers are connected with the same connecting assembly, a vacuum pump is installed at the top of the connecting assembly, and a telescopic assembly is installed at the bottom of the connecting assembly; after the vacuum pump is installed, the buffering and supporting ...

Waterproof assembly of electronic vacuum pump

The invention discloses a waterproof assembly of an electronic vacuum pump, and relates to the technical field of electronic vacuum pumps, the waterproof assembly comprises a shell, the right side of the shell is fixedly connected with a control box, the top of the control box is fixedly connected with a motor, and one end of an output shaft of the motor is fixedly connected with a gear; an auxiliary box is slidably connected to the inner wall of the rear side of the shell, a vacuum pump is placed in the auxiliary box, at the moment, the auxiliary box can control the fixing plate to move, the vacuum pump is stably fixed, meanwhile, an output shaft of a motor is controlled to rotate, the auxiliary box can be controlled to drive the vacuum pump to enter the shell, and the vacuum pump can be stably fixed. Meanwhile, along with rotation of the output shaft of the motor, the movable door can be assisted to be closed, then the vacuum pump is protected, the waterproof effect is achieved, meanwhile ...

Rapid detection method based on solid-phase substrate SERS (Surface Enhanced Raman Scattering) intelligent sensing platform

The invention particularly relates to a rapid detection method based on a solid-phase substrate SERS intelligent sensing platform, and belongs to the technical field of food safety detection. The invention constructs a method for detecting pathogenic bacteria in a sandwich manner based on an aptamer functionalized Au (at) Ag NPs/PDMS substrate so as to realize specific quantitative detection of bacteria. The preparation method comprises the following steps: constructing a sandwich structure of capture substrate-target-signal molecular probe by utilizing specific binding of an aptamer and a target bacterium, and dropwise adding Au (at) Ag NPs sol on the substrate for capturing the bacterium to further cover the surface of the bacterium, construct more hot spots, improve the detection sensitivity and realize rapid and specific detection of the food-borne pathogenic bacteria.

Air pump air valve and control module discrete type blood pressure monitor

The invention belongs to the technical field of medical equipment, and particularly relates to an air pump air valve and control module discrete type blood pressure monitor which comprises a cuff, a monitoring box and a host, the lower end of the cuff is fixedly connected with a plurality of air bags, the air bags are communicated with one another and jointly communicated with an inflation hose, the upper end of the cuff is fixedly connected with a sponge block, and the sponge block is fixedly connected with the monitoring box. The monitoring box is located on the sponge block, an air pump, an air valve, a power module, a pressure sensor and a communication module are arranged in the monitoring box, the host is composed of a control module, a power module, a display module and a communication module, and the output end of the air pump is communicated with the air valve. The system has the advantages that a traditional binding type physical communication design of a control module and an ...

Forward conversion device based on any remainder base

The invention discloses a forward conversion device based on any remainder base, and belongs to the technical field of wireless communication. The device comprises a data segmentation module, an in-segment processing module and an out-segment processing module, and realizes forward conversion of converting a binary number with a larger bit width into an RNS number with a smaller bit width based on any remainder base. The characteristics of parallel computing and no carry of the remainder system are utilized, a conversion mode is provided for the RNS number at the data input end of the digital signal processing system, the hardware complexity of the DSP device is reduced, and the data processing speed is increased.

Silent brush wire and brush head forming cup upsetting machine

The utility model discloses a mute brush wire and brush head forming cup upsetting machine which comprises a vibration motor and a shell, a vibration layer connected with the vibration motor is arranged in the shell, the vibration layer and a cup upsetting layer are in a high-frequency vibration mode of the vibration motor, and the middle vibration layer is fixedly connected with the lower shell through a plurality of connecting assemblies. Not only can the make-up brush wires be quickly compacted, but also short wires and long wires can be compacted and formed, so that the compacting operation efficiency is greatly improved; and meanwhile, it is guaranteed that the shell cannot vibrate, and the shell can be stably placed on a working table during working. The vibration layer adopts a vibration plate to fix a first sound insulation layer in an attached mode, the pier cup layer adopts a second sound insulation layer to fix a first fixing plate and a second fixing plate in an up-down attached ...

Old person uses multifunction seat

... 本实用新型公开了一种老年人用多功能座椅，包括座板、设于座板两侧的扶手、与座板相连接的椅背以及用于支撑座板的支腿，座板呈中间向下凹陷的弧形，座板包括上层座板和下层座板，上层座板由内含多种中药成分的棉质材料制成，下层座板由木质材料制成；椅背与座板之间为榫卯结构，椅背的一端开设有榫头，座板的一端开设有用于与榫头配合连接的榫眼；椅背上端面上可拆卸地设置有遮挡板；支腿为四个相同的气缸，气缸的上端与座板可拆卸连接，其下端可拆卸连接的设置在活动脚轮上端面上，气缸一端还连接有手动按钮，通过启动手动按钮控制气缸的升降；椅背上设置有保健枕；可以用于及时检测老人血压、血糖及心跳速率，并具有保健功能。 ...

Intelligent control method for hydrogen chloride synthesis production in chlor-alkali process

The invention relates to an intelligent control method for hydrogen chloride synthesis production in a chlor-alkali process, which comprises a chlorine and hydrogen buffer tank pressure stabilization control system, a chlorine and hydrogen ratio adjusting system, a hydrogen chloride conveying positive pressure and negative pressure automatic switching system, a chlorine and hydrogen pressure relief system, an automatic interlocking protection system and raw material hydrogen and chlorine flow ratio interlocking. The flow of hydrogen and chlorine entering the furnace is detected on line, temperature, pressure compensation and flow ratio are displayed in real time, an alarm is given, and when the ratio of the hydrogen flow to the chlorine volume flow is high or low, a certain two-in-one graphite hydrogen chloride synthesis furnace is automatically interlocked and stopped; a secondary falling film absorber, a hydrogenated hydrogen distribution table and a primary falling film absorber are ...

From quantitative extracting device

... 本实用新型公开了一种自定量取料装置，包括存料箱和称量箱，存料箱连接有壁挂板，物料箱的底部设有第一阀门，第一阀门与称量箱相连通；称量箱设置在存料箱下方，称量箱的底部设有第二阀门，称量箱下方的实验室墙壁上固定连接有支撑架，支撑架上设有重量传感器，重量传感器向上支撑所述称量箱；支撑架向下连接有下料筒，第二阀门向下连接有下料管，下料管向下通入所述下料筒；支撑架下方的地面设有接料箱，接料箱顶部敞口，下料筒向下通入接料箱的底部。本实用新型结构简单，操作非常方便，并且节约占用的空间，能够迅速地实现定量取料。由于取料操作不再信赖于学生的取料手法，因此避免了人为因素带来的物料损耗。 ...

Shaping, sealing and cutting equipment for food packaging box and using method of shaping, sealing and cutting equipment

The invention provides shaping, sealing and cutting equipment for a food packaging box and a using method of the shaping, sealing and cutting equipment, and belongs to the technical field of food packaging. Comprising a baking line, a sealing and cutting device and a guiding device which are used in cooperation, a guiding roller, a shaping and dispersing device, a conveying belt and a triangular plate are connected into the guiding device, the guiding roller and the triangular plate are both used for guiding a film, and a circular box body is placed on the conveying belt; and the shaping and dispersing device is used for shaping and dispersing the circular box body. The shaping and dispersing device is arranged and comprises the pressed part, the moving frame and the adjusting part which are connected with one another, the adjusting part rotates to push the circular box bodies to move towards one side and drive the multiple circular box bodies located on the conveying belt to be located ...

Through hole keyboard

The present description relates to devices such as keyboards. One example may include a top portion and an opposing bottom portion, and a key switch mechanically retained in an aperture formed in the top cover. The example may also include electrical traces formed on the top cover, the electrical traces extending from the aperture to a processing unit configured to receive an electrical signal along the electrical traces when the key switch is closed.

Measurement method, measurement device and computer readable storage medium

The invention discloses a measurement method, which comprises the following steps: acquiring depth information of a physical space, the depth information comprising depth information of a target object; converting the depth information into a first point cloud; extracting a second point cloud corresponding to the target object from the first point cloud; and estimating the volume of the target object based on the second point cloud. The measuring method provided by the invention solves the difficult problem of weight estimation of the deformed steel bar, performs motion scanning on the deformed steel bar in a certain area through the depth sensor, obtains a point cloud picture, performs information fusion and scene modeling, can cover a stacking site at the minimum cost, obtains an original point cloud model of the deformed steel bar stacking site after scanning modeling, and achieves the purpose of weight estimation of the deformed steel bar. And processing, detecting and segmenting the ...

DC-DC buck converter control algorithm

The invention discloses a DC-DC buck converter control algorithm, and belongs to the field of electrical automation equipment. According to the method, firstly, an ideal state-space equation of the DC-DCbuck converter is constructed by adopting a state averaging method, then parameter uncertainty and external disturbance of the converter are considered, the state-space equation of the converter is corrected, and an error system with non-matching disturbance is constructed; for an error system, non-singular fast Terminal sliding mode control is adopted to effectively avoid the problem of singularity and ensure that a voltage tracking error converges to zero within finite time, a novel smooth saturation function is used to replace a sign function in a controller, and the chattering phenomenon of the system is reduced; in order to solve the problem that the voltage tracking control precision is reduced due to the comprehensive uncertainty of an error system, the disturbance quantity obtained ...

High-speed rotation testing machine

The invention provides a high-speed rotation testing machine, and relates to the technical field of testing, and the high-speed rotation testing machine comprises a rack which is provided with a first sliding hole and a second sliding hole; the adjusting assembly comprises a first motor, a lead screw and a lifting plate, the first motor is embedded in the bottom of the rack, the top end of the lead screw is fixedly connected with an output shaft of the first motor, and the surface of the lead screw is in threaded connection with the lifting plate; the first transmission part comprises a first transmission rod and a first sliding frame; the second transmission part comprises a second transmission rod and a second sliding frame; and the driving mechanism is mounted on the first sliding frame. According to the scheme, when the first sliding frame and the second sliding frame on the two sides are far away from each other, the driving mechanism and the locking mechanism are automatically unlocked ...

Refining production process method for heat stability of polyvinyl chloride resin

The present invention relates to a polyvinyl chloride resin thermal stability refining production process method, which comprises a polymerization material feeding process, a polymerization reaction process and a polymerization material discharging process, and the polymerization material feeding process comprises: setting a polymerization reaction control temperature as a first reaction temperature, and setting a first reaction pressure; the preparation method comprises the following steps: feeding a vinyl chloride monomer and soft water according to a certain ratio, adding a dispersing agent and an initiator with certain purity and certain dosage, adding into a polymerization kettle through a closed feeding system, continuously stirring while adding the materials, reacting for a set time, and cooling to room temperature; the emulsion terminator and the oil-soluble terminator are added into the first batch and the second batch respectively, polymerization stirring is controlled to rotate ...

Spraying device for stem pressing machine and stem pressing machine

The invention discloses a spraying device for a stem pressing machine and the stem pressing machine, and the spraying device comprises a nozzle, one end of the nozzle is provided with a nozzle opening, and the nozzle opening is rectangular; the nozzle seat is detachably connected with the other end of the nozzle; wherein one of the nozzle and the nozzle seat is provided with a clamping groove, the other one is provided with a clamping strip, and when the nozzle is connected with the nozzle seat, the clamping strip is clamped into the clamping groove, and the interior of the nozzle seat is communicated with the nozzle. A layer of uniform and effective water film can be formed on the pressing roller of the stem pressing machine, and the lubricating effect is improved. The invention further provides the stem pressing machine comprising the spraying device.

Tunnel furnace propelling mechanism

The invention relates to the technical field of tunnel furnace conveying equipment, and particularly discloses a tunnel furnace propelling mechanism which is characterized in that a plurality of conveying assemblies are distributed in the length direction of a tunnel furnace, each conveying assembly comprises a first conveying unit and a second conveying unit, and a transposition area is formed between every two adjacent conveying assemblies; the transposition assemblies correspond to the transposition areas one to one and comprise center shafts rotationally arranged in the corresponding transposition areas, sleeves are arranged at the two ends of each center shaft, sliding rods are arranged in the sleeves in a sliding fit mode, brackets are rotationally connected to the two ends of each sliding rod, and the brackets at the first ends of the two sliding rods are symmetrical and form a first bracket set. The plate bodies correspond to the sleeves in a one-to-one mode, the plate bodies are ...

Quantitative detection method for ampicillin in milk based on up-conversion fluorescence internal filtration

The invention belongs to the technical field of detection of antibiotic residues in agricultural and sideline products, and particularly relates to a quantitative detection method of ampicillin in milk based on up-conversion fluorescence internal filtration. Based on fluorescence internal filtration, a solid-phase capture probe and artificial nano-enzyme are introduced, and the method for quantitatively detecting ampicillin in milk based on up-conversion fluorescence internal filtration is constructed. When the ampicillin exists in the system, the solid-phase capture probe captures the ampicillin, the aptamer functionalized platinum nano-particles are specifically adsorbed to the surface of the solid-phase capture probe to catalyze TMB oxidation, and a product and up-conversion generate a fluorescence inner filter effect and fluorescence quenching; along with the increase of the concentration of the ampicillin, the more the platinum nanoparticles loaded on the surface of the solid-phase ...

Cleaning device

The invention discloses a cleaning device. The cleaning device comprises a fixed seat; the telescopic mechanism comprises at least two telescopic pieces, the telescopic pieces are sequentially arranged relative to the fixed base in the first direction, the telescopic piece closest to the fixed base is the first telescopic piece, the first telescopic piece is connected with the fixed base, the telescopic piece farthest from the fixed base is the second telescopic piece, and every two adjacent telescopic pieces are in sliding connection; the two adjacent telescopic pieces can generate relative movement in the first direction; the threaded cylinder assembly comprises at least two threaded cylinders, the threaded cylinders are sequentially arranged relative to the fixing base in the first direction, the axes of the threaded cylinders coincide with the first direction, annular protrusions are arranged on the outer circumferential faces of the threaded cylinders, outer threads are arranged on ...

Three-dimensional scene reconstruction method and device, electronic equipment and storage medium

The invention provides a three-dimensional scene reconstruction method and device, electronic equipment and a storage medium, and relates to the technical field of vision. The three-dimensional scene reconstruction method comprises the following steps: acquiring first point cloud data and image data of a current scene; determining a first feature point in the first point cloud data; determining a candidate area according to second point cloud data, wherein the second point cloud data is the first point cloud data except the first feature point; identifying a target object according to the candidate region and the image data to obtain a second feature point; and performing three-dimensional scene reconstruction on the current scene based on the first feature point and the second feature point. According to the embodiment of the invention, the features of the current scene and the target object can be extracted through the fusion of the laser point cloud data and the two-dimensional image ...

Operation behavior monitoring method, system and equipment and storage medium

The invention provides an operation behavior monitoring method, system and device and a storage medium, and relates to the technical field of warehouse intelligent management. The operation behavior monitoring method comprises the steps that video image data of an operation area are acquired, and the video image data comprise operation behaviors of operators; generating an operation analysis result of the operator according to the video image data; and monitoring the operation behavior of the operator through the operation analysis result. According to the embodiment of the invention, the method can achieve the collection and analysis of the local video stream of the operation region, can achieve the real-time linkage with the site of the operation region, and standardizes the behaviors of operators in the operation region.

Method and device for rapidly detecting pesticide residues in food

The invention discloses a method and a device for rapidly detecting pesticide residues in food. The detection device comprises a portable detection terminal and a man-machine interaction terminal, the portable detection terminal comprises a protective shell, and a Raman probe, a spectrum acquisition module, a light source module, a power supply module, a control processing system, a sensor module, a communication module and a sample loading unit which are arranged in the protective shell; the sample loading unit comprises a detection table and a detection plate, a detected sample and the Raman signal enhancement substrate are placed in a sample pool of the detection plate, Raman spectrum signals of harm of a to-be-detected object are obtained by using the light source module, the spectrum acquisition module and the Raman probe, and information interaction is performed between the man-machine interaction terminal and the portable detection terminal. And storing the collected data, matching ...

Garment with multiple layers of internal abdomen supporting inserts

The garment comprises a body, buckling structures are arranged at the two ends of the body, the body comprises an inner-layer elastic cloth piece, a middle-layer elastic cloth piece and an outer-layer elastic cloth piece which are sequentially arranged from inside to outside, first dark fringes are embroidered on the inner-layer elastic cloth piece, the first dark fringes are in a Pierino curve shape, and second dark fringes are embroidered on the outer-layer elastic cloth piece. The side, close to the middle-layer elastic cloth piece, of the inner-layer elastic cloth piece is fixedly connected with a plurality of first elastic embedded pieces along the first dark fringes, the side, close to the middle-layer elastic cloth piece, of the outer-layer elastic cloth piece is fixedly connected with a plurality of second elastic embedded pieces, and the first elastic embedded pieces and the second elastic embedded pieces are fixedly connected to the two sides of the middle-layer elastic cloth ...

Mask type defense and epidemic prevention clothes convenient to wear

The invention discloses a convenient-to-wear mask type defense and epidemic prevention garment, which comprises a protective garment for external protection, a cap body arranged on the protective garment and a mask for face protection, the two ends of the mask are fixedly matched through a pull-push locking assembly arranged on the cap body, and the two sides of the mask are respectively provided with a lock catch and a connecting plate; the lock catch is fixedly connected with the binding band of the drawing and locking assembly, and the connecting plate at the other end is connected with the other binding band through the connecting buckle. The bandage is used for closing up the mouth mask, the sealing performance of the mouth mask at the front end is guaranteed, the mouth mask is of a sealed structure when not used, pollution is avoided, the mouth mask is pulled open when used, the mouth mask is rapidly connected and fixed with the spring bolt on the other side through the connecting ...

Long stern shaft tube segmentation division method and device, storage medium set and terminal

The invention discloses a stern shaft tube segmentation dividing method and device, a storage medium and a terminal. The method comprises the steps that related setting parameters of a stern shaft tube to be divided are obtained; obtaining constraint conditions of stern shaft tube segments divided by the to-be-divided stern shaft tube on the basis of the related set parameters, determining all segment division types of the to-be-divided stern shaft tube on the basis of the constraint conditions, and obtaining a total in-cabin operation time representation form of each segment division type; and obtaining an optimal division mode of each segment division type based on an optimization algorithm, so that the optimal division mode has the shortest operation time in the total cabin in the optimization process of the segment division type to which the optimal division mode belongs, and selecting the division mode with the shortest operation time in the total cabin from all the optimal division ...

Intelligence equipment of punching card with prevent destroying

... 本实用新型公开了一种具有防破坏的智能刷卡设备，包括壳体和保护块，所述壳体的顶部设置有报警器，所述壳体的一侧设置有滑台，所述滑台的顶部开设有感应槽，所述滑台的表面开设有滑槽，所述滑槽的两端均设有限位块，所述保护块的底部设置滑块，所述滑块上设置有凸块，所述滑台通过滑槽和滑块与保护块活动连接，所述限位块的一侧与复位弹簧的一端固定连接，所述复位弹簧的另一端与保护块上的滑块固定连接。该具有防破坏的智能刷卡设备，通过设置保护块，当刷卡设备受到挤压使，两个保护块通过滑块和滑槽向下滑动，不会损伤到滑台，有效的保护了滑台内部的零件，复位弹簧进行复位，方便快捷，且具有防破坏的功能。 ...

Powder screening device

The invention relates to the technical field of powder screening, in particular to a powder screening device.A screening frame is slidably installed on a rack and provided with a screen and a flow guide plate, the rack is provided with a first driving device suitable for driving the screening frame to slide in a reciprocating mode, and a first comb tooth frame and a second comb tooth frame are slidably installed on the screening frame in the first direction; the screening frame is provided with a second driving device connected with the first comb tooth frame and the second comb tooth frame, the multiple comb tooth sets are distributed in the second direction at intervals, the second direction is orthogonal to the first direction, and each comb tooth set comprises first comb teeth connected with the first comb tooth frame and second comb teeth connected with the second comb tooth frame. The first comb teeth and the second comb teeth are staggered in the second direction, and the tooth tips ...

AI image monitoring terminal suitable for inspection of power transmission equipment and use method of AI image monitoring terminal

The invention discloses an AI image monitoring terminal suitable for power transmission equipment inspection and a use method thereof, and the terminal comprises a main control module, a camera module, a 4G communication module, an Ethernet module, and a photovoltaic storage battery integrated power module. The AI image monitoring terminal suitable for power transmission equipment inspection is linked with a power transmission line monitoring platform through a 4G network or the Ethernet and runs on a Linux operating system, and the camera module collects image data of a power transmission line channel. According to the image transmission method based on breakpoint resume, it is guaranteed that image data are completely uploaded to a monitoring platform under the condition that 4G signals are unstable within the range of a power transmission line in a remote area. According to the AI image monitoring terminal and method suitable for power transmission equipment inspection, hidden danger ...