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41results about How to "Master the working status" patented technology

Performance evaluation system and method of photovoltaic system

The invention discloses a performance evaluation system and method of a photovoltaic system. The system comprises a data acquisition module and a performance evaluation unit. With utilization of direct-current data, alternating-current data, and meteorological data collected by the data acquisition module, normal working data and to-be-tested data form samples; standardization is carried out and a mahalanobis distance is used as a performance evaluation index to carry out direct-current power evaluation; a similarity level CV value of evaluation done twice is calculated; if the CV is larger than 0.8 and is less than 1 or is larger than 0.6 and is less than 0.8, the system performance is indicated to be good and then new round evaluation is carried out; and if the CV is larger than 0 and is less than 0.6, the system performance is indicated to be poor, a main factor influencing the system performance is extracted by using a principal component analysis method, and the photovoltaic array performance, assembling aging, and inverter performance are analyzed, and then the analysis result is displayed on an upper computer interface. According to the invention, the implementation process is simple and is easy to do; the photovoltaic system performance can be analyzed timely; the working state of the photovoltaic system can be gotten accurately; and the stability and reliability of the system are improved.
Owner:HOHAI UNIV CHANGZHOU

Redundant electric assisting steering system of automobile driving vehicle and control method of redundant electric assisting steering system

The invention discloses a redundant electric assisting steering system of an automobile driving vehicle and a control method of the redundant electric assisting steering system. The electric assistingsteering system comprises a first torque coupler, a second torque coupler, a first assisting system, a second assisting system, a main controller and an alarming device. A steering wheel is connectedwith the first torque coupler through a first intermediate shaft, after being connected in parallel, the first assisting system and the second assisting system are connected with the second torque coupler through output shafts, the second torque coupler is connected with the first torque coupler through a second intermediate shaft, and the first torque coupler is connected with a steering devicethrough a third intermediate shaft. The control method includes the two portions of a control method in an active steering manner and a control method in an assisting steering manner. The redundant electric assisting steering system of the automobile driving vehicle and the control method of the redundant electric assisting steering system have the beneficial effects that sufficient time can be reserved for a driver to take over the steering wheel, the driver is prompted through the alarming device, and the safety of a steering system is effectively guaranteed.
Owner:JILIN UNIV

Overhead transmission line foreign body removing device

The invention provides an overhead transmission line foreign body removing device which comprises an installation cabinet, a hanging plate, two roller wheels and a circuit assembly. The installation cabinet is provided with a traction hole group; the installation cabinet and the hanging plate are respectively provided with a hanging hole group; the two roller wheels are fixedly arranged between the upper end of the installation cabinet and the hanging plate; and the circuit assembly comprises a conductive support rod group fixedly arranged to the installation cabinet and the hanging plate, resistance wires fixedly arranged on the conductive support rod group and used for carrying out thermal cutting on foreign bodies on the transmission lines, a storage battery arranged in the installation cabinet and used for providing power for the resistance wires, a relay KA arranged in the installation cabinet and used for controlling the connection and disconnection of a power supply of the resistance wires, a remote control receiver arranged in the installation cabinet and used for controlling the action of the relay KA, and a handheld remote control emitter for sending an on/off command to the remote control receiver wirelessly. The overhead transmission line foreign body removing device is simple in structure, low in cost, easy to carry and convenient to use during operation, and capable of removing various foreign bodies on the power transmission lines through thermal cutting safely, quickly and thoroughly.
Owner:CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2

Transformer iron core ground connection electric current monitor

InactiveCN103116063AEasy for users to grasp the working statusMaster the working statusMeasurement using digital techniquesMicrocontrollerTime of use
The invention discloses a transformer iron core ground connection current monitor. A current mutual inductance device inputs a detected transformer iron core current to a current-voltage transform circuit after the transformer iron core current is adjusted by a programmable gain amplifier. An output end of the current-voltage transform circuit is connected with an input end of an alternating current-direct current voltage transform circuit, and an output end of the alternating current-direct current voltage transform circuit is connected with an input end of an A / D transform circuit. An output end of the A / D transform circuit is connected with a singlechip. According to the transformer iron core ground connection current monitor, a current value of 0 to 100A can be measured, a maximum current value can be displayed, and time when the maximum occurs can be displayed. A user can conveniently master a working state of the transformer. In time of using the iron core ground connection current monitor, a single turn of a main change iron core ground connection down lead penetrates out of a hole of the top of the monitor, an original wire connection manner of a measured transformer iron core is not changed, and any potential safety hazard can not be caused on the transformer in operation. The transformer iron core ground connection current monitor has the advantages of being capable of preventing interference of electromagnetism and an electric field from the outside, high in measuring precision, accurate in numerical value, small in size, light in weight and easy to install.
Owner:大连新安越电力设备有限公司

Device and method for updating control program of portable electric tool

The invention relates to a device and a method for updating the control program of a portable electric tool. The device comprises a programmer, a USB interface used for connecting a PC terminal and the programmer, a program output terminal electrically connected with the programmer, a program updating control button used for sending a programming instruction to the programmer and a program checking code reading button used for sending a checking instruction to the programmer, wherein the program output terminal is used for being connected with a battery pack temperature detection terminal in abattery clamp of an electric tool. According to the device, the program output terminal, the program updating control button and the program checking code reading button which are in butt joint withthe battery pack temperature detection terminal are arranged on the programmer to realize the program updating of an electric tool control chip by the updating device through the battery pack temperature detection terminal, so that the control program of the electric tool can be updated without disassembling the electric tool, the program updating difficulty of the electric tool is effectively reduced, and the program updating time of the electric tool is shortened.
Owner:ZHANGJIAGANG HUAJIE ELECTRONICS

Remote passive gain module and relay-free transmission system capable of realizing state monitoring

The invention provides a remote passive gain module capable of realizing state monitoring. The remote passive gain module comprises a first monitoring optical splitter the input end of which is connected with a front transmission optical fiber, wherein the secondary light splitting end of the first monitoring light splitter is connected with the first light detector, and the main light splitting end is connected with the signal end of a first signal pumping combiner; the common end of the first signal pumping combiner is connected with one end of the erbium-doped optical fiber; the other end of the erbium-doped optical fiber is connected with the input end of the unidirectional optical isolator; the output end of the unidirectional optical isolator is connected with one end of a filter, the other end of the filter is connected with the input end of a second monitoring optical splitter, the secondary optical splitting end of the second monitoring optical splitter is connected with a second optical detector, the main optical splitting end of the second monitoring optical splitter is connected with the signal end of a second signal pumping combiner, and the common end of the second signal pumping combiner is used for being connected with a post-transmission optical fiber; the reflection end of the second signal pumping combiner is connected with the input end of the pumping light splitter, and the secondary light splitting end of the pumping light splitter is connected with the monitoring photoelectric module. And the state of the remote passive gain module can be effectively monitored.
Owner:无锡瀚诺光电科技有限公司

Ultraphonic elliptical vibration and extrusion processing device based on double-excitation longitudinal bending elliptical energy converter

The invention discloses an ultraphonic elliptical vibration and extrusion processing device based on a double-excitation longitudinal bending elliptical energy converter, comprising a shell assembly, a vibration assembly, a sliding assembly and a pressure assembly, wherein the sliding assembly is sleeved on the excircle surface of the vibration assembly; the pressure assembly is arranged on the tail part of the vibration assembly; and the assembled vibration assembly, the sliding assembly and the pressure assembly are arranged in the shell assembly. The structure of the ultraphonic ellipticalvibration and extrusion processing device is designed by combining a flexible extrusion requirement with a langevin energy converter principle, when the ultraphonic elliptical vibration and extrusionprocessing device is adopted to carry out extrusion processing, the double-excitation longitudinal bending elliptical energy converter of the ultraphonic elliptical vibration and extrusion processingdevice can drive a cutter to cautiously take longitudinal bending elliptical vibration, tracks of the longitudinal bending elliptical vibration are tangent with tracks of the turning motion of a workpiece and is reverse to the turning direction of the workpiece, when the turning speed of the longitudinal bending elliptical vibration is equal or approximately equal to the turning speed of the workpiece, the cutter is equivalent to make pure rolling on the surface of the workpiece so that relative sliding between the cutter and the processing surface disappears, and the mechanical abrasion caused by sliding friction is effectively prevented, and the purpose of prolonging the service life of the cutter is achieved.
Owner:BEIHANG UNIV

Rail transit passenger flow abnormal mode identification method based on big data

The invention discloses a rail transit passenger flow abnormal mode identification method based on big data. The rail transit passenger flow abnormal mode identification method comprises the steps of:acquiring card swiping information of a passenger, and judging whether a card belongs to an abnormal card or not, wherein the abnormal card is used for representing that abnormal behaviors exist in card swiping records; and if the card is judged to be an abnormal card, acquiring face image information and human body characteristics of the abnormal card passenger; binding the abnormal card numberwith the face image information; and publishing the face image information corresponding to the abnormal card to a plurality of tracking cameras, respectively comparing the face image information acquired by the plurality of tracking cameras according to a local face recognition library by means of the plurality of tracking cameras, and if the face information in the local face recognition library is retrieved, uploading a comparison result and a video stream of the corresponding camera to a target server. According to the rail transit passenger flow abnormal mode identification method, abnormal cards and abnormal behaviors can be accurately identified, and abnormal behavior paths and time periods can be counted and analyzed.
Owner:BEIJING JIAOTONG UNIV

Air conditioner drive power supply testing system based on single chip microcomputer control

The invention discloses an air conditioner drive power supply testing system based on single chip microcomputer control. The air conditioner drive power supply testing system comprises an input EMC, a rectifier module, a filter module, an inversion module, a frequency conversion module and an output EMC which are sequentially connected; the input EMC and the output EMC are connected to the input end of a single chip microcomputer through an input voltage detection module and an output voltage detection module respectively; the single chip microcomputer achieves interaction communication with an upper computer through an RS485 interface. According to the system, an electric signal is subjected to a series of processing and then output to be used by an air conditioner, and the reliability and the stability of air conditioner power supply are improved; the air conditioner running speed is regulated and controlled through the frequency conversion module, and therefore the automation degree and the stability degree of speed regulation of the air conditioner are increased; an input voltage signal and an output voltage signal are collected by the input voltage detection module and the output voltage detection module respectively, and therefore the stability of a power supply is conveniently monitored to master the working state of the power supply; monitor data of the single chip microcomputer is acquired by the upper computer through the RS485 interface in real time.
Owner:HEFEI TONGYONG POWER EQUIP

Intelligent control system platform based on WeChat end

The invention discloses an intelligent control system platform based on a WeChat end. The intelligent control system platform based on the WeChat end consists of three parts of an industrial computer,a mobile device and a display device; cloud intelligent control platform software is embedded in the industrial computer; the cloud intelligent control platform software is built relying on Alibaba Cloud; the cloud intelligent control platform software enables each industrial computer to generate a unique two-dimensional code; the mobile device binds to the industrial computer by scanning the two-dimensional code; then the bound mobile device is authorized through the cloud intelligent control platform software; a user controls the industrial computer through a small program on the mobile device WeChat end, and adjusts the content played on the display device. When in use, the user can perform operations such as playing, pausing, replacing and the like on the content displayed on the display device, and can also remotely control the peripheral associated device of the serial port of the industrial computer; therefore, the remote control of different functions is realized, unified management of data, programs, video, and audio is realized, and centralized management and flexible configuration of scheduling, computing, storage, and network are realized.
Owner:杭州格瑞普光电科技有限公司

3D printing workshop based on additive manufacturing industry internet platform

According to the 3D printing workshop based on the additive manufacturing industry internet platform, an AGV conveys powder to a powder preparation area, treated powder and a substrate are conveyed to a 3D printing area to produce parts, the parts are conveyed to a heat treatment area to be subjected to heat treatment, the parts subjected to heat treatment are conveyed to a linear cutting area to be cut and separated, and the AGV conveys the parts and the substrate separately; and the parts are conveyed to a bench worker workshop to be treated, subjected to ultrasonic cleaning, polishing or sand blasting treatment in a post-treatment workshop and conveyed to a detection room to be detected, and qualified parts are conveyed to a finished product warehouse to be registered and put in storage. The AGV trolley is used for completing material carrying, the carrying route is adjusted along with the production technological process, manpower is saved, logistics management is improved, the material conveying efficiency is improved, and safety is improved; the AGV trolley transmits the information to the Internet platform, so that the working state of the trolley can be mastered conveniently, the information feedback time is shortened, the equipment utilization rate and the production efficiency are improved, the cost is reduced, and the benefit is improved.
Owner:山东变量空间科技有限公司

A kind of intelligent guide rail forming machine and its control method

The invention discloses an intelligent guide track molding machine and a control method thereof. The intelligent guide track molding machine comprises a frame and a main controller, wherein a work bench is arranged on the frame, a guide mechanism is arranged on the work bench and used for conveying work pieces, a microwave induction zone is arranged on the main controller, and the main controller is used in with a long-distance microwave inductor, a computer and a mobile phone. The intelligent guide track molding machine is characterized in that the microwave induction zone is used for receiving a microwave signal from the long-distance microwave inductor, the mobile phone sends a control signal to the long-distance microwave inductor, and the computer sends a control signal to the long-distance microwave inductor through a network; a display screen, a remote control indicator lamp, a password operating area and a fingerprint identification region are arranged on the main controller; and a function switching lamp, a loudspeaker, a power indicator lamp and a working indicator lamp are arranged on the main controller. The control method of the intelligent guide track molding machine has three modes. The intelligent guide track molding machine has the characteristics of high intelligent level, simple and reasonable structure, convenience for operation and management, low manufacture cost, high production efficiency, high safety and wide application range.
Owner:GUANGDONG ANDISI INTELLIGENT FURNITURE COMPONENT
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