30results about How to "With verification function" patented technology

The invention discloses four surface acoustic wave label temperature measuring systems and corresponding temperature measuring methods. Based on the combination of tie division, time division-frequency division, time division-code division, and time division-code division-frequency division, the multi-node anti-collision temperature measurement is realized. The temperature measuring system is composed of a surface acoustic wave label node, a reader and a server. During the time-division method, different positions of echo pulses are divided into a plurality of surface acoustic wave label nodesaccording to different positions of the reflection gratings of labels. During the time division-frequency division method, time division labels are classified according to different resonance frequencies. During the time division-code division method, time division labels are grouped according to different phase codes of a phase modulation interdigital transducer. During the time division-code division-frequency division-combined method, time division labels are classified firstly and then are grouped. For the temperature measuring systems of different temperature measuring methods, the reader sends out different excitation signals. According to the invention, the ISM and the bandwidth allowed in the national standard are satisfied, and the number of nodes is increased. The verification function is achieved, and the anti-jamming capability is high. The real-time performance is relatively good.

The invention relates to a superconducting state information-based power distribution network self-healing system and method, wherein a first feeder line of a power distribution network is connected with a second feeder line by an interconnection switch, and substation outlet circuit breakers are arranged at the initial ends of the first feeder line and the second feeder line, and provided with a superconducting short circuit current limiter SFCL and a distributive FA controller; a feeder line automation control terminal FTU and a distributive FA controller are respectively arranged on section switches of the first feeder line and the second feeder line; and the feeder line automation control terminal FTU is connected on the feeder line of the power distribution network by a mutual inductor, the superconducting short circuit current limiter SFCL is directly connected on the feeder line of the power distribution network, and the distributive FA controllers conduct information interaction by an optical communication system. Based on the change information of the superconducting state of the superconducting short circuit current limiter SFCL in fault period of the power distribution network, the superconducting state information-based power distribution network self-healing system is established, the fault isolation and power restoration of the power distribution network can be realized before relay protection action of the power distribution network, and the fast self-healing function of the power distribution network under the condition of no power lose can be realized.

The invention discloses a mowing robot communication method and system based on a boundary electromagnetic signal, and the method comprises the steps: receiving the boundary electromagnetic signal transmitted by a base station, wherein the boundary electromagnetic signal is a carrier signal formed by the modulation of a low-frequency source signal and a high-frequency signal, and the low-frequencysource signal comprises a complete periodic waveform and a non-complete periodic waveform; amplifying the boundary electromagnetic signal; filtering the amplified boundary electromagnetic signal; anddemodulating according to the filtered boundary electromagnetic signal to obtain the low-frequency source signal, identifying combined information of the complete periodic waveform and the non-complete periodic waveform in the low-frequency source signal, comparing the identified combined information with a preset action instruction, and executing a corresponding action according to a comparisonresult. Communication between the base station and the mowing robot is realized on the basis of not increasing the equipment cost and the anti-interference capability is high.

The invention discloses an optical fiber-digital synchronous interface system based on FPGA. The system comprises a microprocessor, an FPGA controller and an optical transceiver module used for converting photoelectric signals, the FPGA controller comprises an HDLC frame protocol transceiver and a physical layer optical fiber communication line using CMI codes, the HDLC frame protocol transceiver is composed of a sending control module and a receiving control module, the microprocessor is in communication connection with the HDLC in the FPGA controller in a bus mode, and the HDLC communicates with the CMI and is connected with the optical transceiver module. The microprocessor of the system reads data in the FPGA through a read-write bus, an HDLC protocol and a CMI encoding and decoding function are realized by the FPGA, the traditional way of implementing the HDLC protocol by using SCC hardware can be omitted, the data in an opposite side relay protection device in optical fiber transmission are obtained, so optical fiber longitudinal differential protection can be realized, and the system has the advantages of low hardware cost, reliable communication, good flexibility and convenient maintenance.

The invention relates to an electric car time-sharing renting system and an electric car time-sharing renting method. The deficiency of the prior art is solved. According to the technical scheme, the system comprises a central server, a plurality of sub servers, user handheld terminals equipped with an electric car renting APP, an access terminal connected to the Internet, a plurality of car charging piles equipped with a communication and processing device, and time-sharing renting devices arranged on electric cars. The user handheld terminals equipped with a custom APP and the access terminal connected to the Internet are in communication connection with the central server. The sub servers are in communication connection with the central server. The sub servers are in communication connection with the car charging piles respectively. The time-sharing renting devices arranged on electric cars are in communication connection with the sub servers respectively. An information reading device, a car control module and a car communication device are connected to a car-mounted information platform. The car-mounted information platform is in communication connection with the sub servers through the car communication device.

The invention provides a work attendance system with verification function, and relates to a work attendance system. The system solves the problem that the prior fingerprint work attendance system cannot avoid the phenomenon that work attendance is substituted by using a fingerprint film. A number one wireless transceiver and a number two transceiver are used for carrying out wireless communication, and a signal output and input terminal of the number two transceiver is connected to a control signal input and positioning signal output terminal of a positioner; a signal output terminal of a pulse sensor is connected to a trigger signal input terminal of the positioner and a signal input terminal of the number two transceiver at the same time; the pulse sensor is provided with a bracelet body for acquiring pulse of human body, and an acquired driving signal input terminal of the pulse sensor is connected to a driving signal output terminal of a sensor drive circuit; a trigger signal output terminal of a timer is connected to a switch control signal input terminal of the sensor drive circuit. The system is suitable for work attendance with fingerprints.

The invention discloses an elevator floor recognition system and method. The elevator floor recognition system comprises a sensor module, an acquisition module and a processing module; the sensor module comprises a magnetic encoder used for marking floor information and a recognizer used for recognizing the marked floor information; the acquisition module is used for acquiring a magnetic signal, generating a PWM signal and outputting the PWM signal; and the processing module is used for processing and analyzing the PWM signal and recognizing the floor information. According to the elevator floor recognition system and the method, the floor is uniquely marked through the magnetic encoder, a magnetoresistive sensor is adopted for recognition, the magnetic encoder is small in size, easy to manufacture and low in price, the floor information is independent, floor staggering is avoided, the influence of power failure on floor recognition is overcome, and the magnetoresistive sensor has theadvantages of being rapid in recognition and not prone to being influenced by the outside. The elevator floor recognition system is convenient to operate and implement, quick in response and suitablefor transformation and popularization of existing elevators.

The invention provides a carbon emission reduction calculation method and system for regional new energy power generation. According to the method, the fossil energy substitution amount, the fossil energy substitution rate, the carbon emission reduction amount and the carbon emission reduction rate are calculated by summarizing and counting the total electric quantity data and the total active power data of new energy power generation areas of different administrative regions, and the calculation results are visualized on a power grid GIS system map; a carbon emission reduction calculation system comprises a first system area, a second system area, a forward isolation device, a firewall and a third system area; the third system area comprises a statistical management module and a power grid geographic information module which are in network connection, a first area server is connected with the input end of the forward isolation device, the output end of the forward isolation device anda second-area server are connected with one end of the firewall, and the other end of the firewall is connected with the statistical management module; and the statistical management module comprisesa carbon emission reduction statistical unit, and the carbon emission reduction statistical unit is connected with a carbon emission reduction transaction platform through a network and repays and transfers the carbon emission reduction amount.

The present invention discloses a communication method of an injection molding machine and a feeding system. A feeding system is provided with a microprocessor and an injection molding machine; the injection molding machine is provided with PLCs; the microprocessor is configured to receive information emitted by the injection molding machine and control the operation of the feeding system; the microprocessor is connected with the injection molding machine through a RS485 interface; and the microprocessor and the PLCs establish communication connection through an MODBUS protocol in a RTU mode.The RS485 is long in transmission distance and high in anti-jamming capability and has a multi-station capacity, the feeding system can be connected with a plurality of injection molding machines through an interface to form a network, and has a verification function in the transmission process so that it is does not need to worry the data error in the transmission process; and after the technology is employed, users can accurately complete replacement of raw materials without errors, and compared to a current manual notification of a feeding house, the transmission of the raw materials is completed with more rapidness, more safety and more accuracy.

The embodiment of the invention discloses a control system, method, device and sub-module of a modular multilevel converter. The modular multilevel converter comprises N sub-modules, and the control system comprises: a control module which is used for transmitting a control instruction; and a concentrator connected with the N sub-modules and used for receiving the control instruction and sendingthe control instruction to the N sub-modules, wherein each sub-module in the N sub-modules is used for respectively determining a sub-module set adapted to execute the control instruction, and executing the control instruction when determining that the sub-module belongs to the sub-module set, N is a positive integer greater than or equal to 2. According to the embodiment of the invention, the technical scheme of the distributed control MMC is realized, and the safety problem of centralized control can be solved.

The invention discloses a system and method for electric vehicle leasing. The system comprises a central server, multiple sub-servers, multiple user hand-held terminals equipped with a leasing APP, multiple access terminals connected to the Internet, multiple vehicle charging piles equipped with communication and processing devices and time-sharing leasing devices disposed on each electric vehicle, wherein each user hand-held terminal, each access terminal and each sub-server are in a communication connection with the central server; each sub-server is in a communication connection with the multiple vehicle charging piles respectively; and the time-sharing leasing device of each electric vehicle is in a communication connection with each sub-server. The system and the method disclosed by the invention are characterized in that a positive time-sharing charging leasing method is adopted, and local peak-valley electric prices and electricity utilization strategies are combined; and electricity utilization cost is greatly used, and normal leasing and returning of the vehicles are not hindered at the same time.

The invention discloses a calculation method for stair engineering quantity. The calculation method comprises the following steps: obtaining a calculation rule of the stair engineering quantity; obtaining a stair modeling mode, determining stair parameter information according to the modeling mode, and constructing a stair three-dimensional model; according to the stair three-dimensional model andthe association between stairs and related components, determining the stair engineering quantity according to the calculation rule. According to the invention, a user can determine a calculation rule suitable for a local area, when a stair three-dimensional model is generated, drawing requirements on the user are reduced, investment time cost is reduced, a verification function is achieved, theerror rate is reduced, calculation results of various engineering quantities of stairs can be generated, the tedious process and low accuracy of manual calculation are avoided, and stair three-dimensional modeling and accurate calculation of the stair engineering quantities can be achieved quickly.

The invention discloses a surface acoustic wave tag-based torque detection system and a detection method. Four time-division multiple access tags are used to detect the dynamic torque of an aeroengine. The four tags are arranged in differential symmetry along the circumference of the engine shaft. By optimizing the overall topology of the number and position of all reflection gratings, it is possible not only to measure the time delay and phase of all echo pulse signals simultaneously, but also to use The proportional relationship of the distance between adjacent reflective gratings adopts a step-by-step recursive method to obtain an unambiguous phase difference between the farthest echo pulses, which can maximize the distance between the farthest reflective gratings on the same label and improve the torque detection accuracy. The reader transmits the phase code modulated binary phase keying pulse, and uses the corresponding matched filter to compress the echo in time domain, which can not only reduce the distance between the nearest reflective grating, increase the torque detection range, but also Improve the signal-to-noise ratio of the echo signal and enhance the anti-interference ability in extreme environments.

The invention discloses a car rental fee deduction system and a shared electric car renting system. The car rental fee deduction system comprises a server and a client, wherein the server comprises a first central processing module, a first data transmitting and receiving module, a check code generation module and a first storage module; the central processing module is simultaneously connected with the first data transmitting and receiving module, the check code generation module and the first storage module; the client comprises a second central processing module, a second data transmitting and receiving module, a second storage module and a payment module; the second central processing module is simultaneously connected with the second data transmitting and receiving module, the second storage module and the payment module; and the first data transmitting and receiving module is wirelessly connected with the second data transmitting and receiving module. According to the car rental fee deduction system disclosed by the invention, the car rental fee can be conveniently and rapidly paid by a customer, and the safety of the payment process is high.

The invention relates to a superconducting state information-based power distribution network self-healing system and method, wherein a first feeder line of a power distribution network is connected with a second feeder line by an interconnection switch, and substation outlet circuit breakers are arranged at the initial ends of the first feeder line and the second feeder line, and provided with a superconducting short circuit current limiter SFCL and a distributive FA controller; a feeder line automation control terminal FTU and a distributive FA controller are respectively arranged on section switches of the first feeder line and the second feeder line; and the feeder line automation control terminal FTU is connected on the feeder line of the power distribution network by a mutual inductor, the superconducting short circuit current limiter SFCL is directly connected on the feeder line of the power distribution network, and the distributive FA controllers conduct information interaction by an optical communication system. Based on the change information of the superconducting state of the superconducting short circuit current limiter SFCL in fault period of the power distribution network, the superconducting state information-based power distribution network self-healing system is established, the fault isolation and power restoration of the power distribution network can be realized before relay protection action of the power distribution network, and the fast self-healing function of the power distribution network under the condition of no power lose can be realized.

The invention relates to the field of fuel cell engines, and discloses a fuel cell engine monitoring system integrated with an auxiliary parameter input module, which comprises an auxiliary parameter input module upper computer and a fuel cell engine system upper computer. The auxiliary parameter input module upper computer serves as an independent submodule to be embedded into a fuel cell engine system upper computer, communication channels of the auxiliary parameter input module upper computer and the fuel cell engine system upper computer are connected into a channel of the same communication device in parallel, and the communication device is connected with a fuel cell controller and an auxiliary controller. The fuel cell engine monitoring system realizes the functions of monitoring the state of the fuel cell engine and inputting auxiliary parameters through the fuel cell controller and the auxiliary controller. The auxiliary parameter input module upper computer is integrated on the fuel cell engine system upper computer, so that the problems of measuring point increase and low change efficiency of the fuel cell engine monitoring device are solved.

The invention provides a high-reliability HDLC communication information verification method and device applied to a flexible DC valve base control system, and the method comprises the steps: adding checksum check, word check, and connection judgment at an application layer; performing CRC check of received data, wherein the data includes a frame header, user data R0 to R6, a checksum check code R7, and a CRC check code; performing the checksum check of the data after the CRC check is passed; performing the word check of the data after the checksum check is passed; performing the connection judgment of the data after the word check is passed. According to the technical solution provided by the invention, the method enables the HDLC communication of a flexible DC transmission system VBC tohave high stability and reliability. In the case of a correct packet, the method can guarantee that the message passes the check; in the case of a packet error, the method can screen out an error packet quickly and reliably, and reports the error packet.

The present invention provides a carbon emission reduction calculation method and system for regional new energy power generation. The method calculates the fossil energy substitution amount, Fossil energy replacement rate, carbon emission reduction, carbon emission reduction rate, and visualize these calculation results on the grid GIS system map; the carbon emission reduction calculation system includes system one area, system two area, positive isolation device, firewall , the third area of ​​the system; the third area of ​​the system includes the statistical management module of the network connection and the geographic information module of the power grid; the server in the first area is connected to the input end of the forward isolation device, the output end of the forward isolation device is connected to the server in the second area, and the other end of the firewall is connected Statistical management module; the statistical management module includes a carbon emission reduction statistical unit, which connects to the carbon emission reduction trading platform through the network, and transfers the carbon emission reduction amount for a fee.

The invention discloses four surface acoustic wave label temperature measuring systems and corresponding temperature measuring methods. Based on the combination of tie division, time division-frequency division, time division-code division, and time division-code division-frequency division, the multi-node anti-collision temperature measurement is realized. The temperature measuring system is composed of a surface acoustic wave label node, a reader and a server. During the time-division method, different positions of echo pulses are divided into a plurality of surface acoustic wave label nodesaccording to different positions of the reflection gratings of labels. During the time division-frequency division method, time division labels are classified according to different resonance frequencies. During the time division-code division method, time division labels are grouped according to different phase codes of a phase modulation interdigital transducer. During the time division-code division-frequency division-combined method, time division labels are classified firstly and then are grouped. For the temperature measuring systems of different temperature measuring methods, the reader sends out different excitation signals. According to the invention, the ISM and the bandwidth allowed in the national standard are satisfied, and the number of nodes is increased. The verification function is achieved, and the anti-jamming capability is high. The real-time performance is relatively good.

The invention discloses a responsibility identification traceability method of power grid data comprising the following steps: S1, label establishment: a power grid device corresponds to a unique label, wherein the label forms a data source, and an original database is established; S2, data uploading: creating corresponding cells of the power grid device, wherein each cell has a unique number andcorresponds to a unique label, and traceability data are uploaded; and S3, data encryption: encrypting the traceability data uploaded to the cloud database through an encryption algorithm. According to the invention, one power grid device corresponds to one cell, so that the correspondence of the traceability data is ensured, the production, trade, state, detection and maintenance of the power grid device are uploaded to the cloud and encrypted, the diversity of the traceability data is ensured, the traceability data needs to be decrypted, opened and read after encryption, the accuracy of thetraceability data is determined, and responsibility identification is completed. The asset lean management problem of the power grid device is effectively solved.

The invention relates to a universal FDM (frequency division multiplexing) programmable position signal conversion device, which comprises a main control chip and a signal amplification differential circuit which are connected with each other, and is characterized in that the main control chip stores a computer program, and when the computer program is called, the computer program executes the following operations: picking up an input signal from printer motion control; the signal processing circuit is used for processing the input signal and generating an intermediate signal output to the signal amplification differential circuit; and receiving an output result of the signal amplification differential circuit for verification, wherein the output result is a recognizable signal of the motor driver. Compared with the prior art, the method has the advantages of wide applicability, accuracy and the like.

The invention discloses an electric vehicle rental system and method, comprising a central server, several sub-servers, several user handheld terminals installed with rental APPs, several access terminals connected to the Internet, and several automobiles equipped with communication and processing devices The charging pile and the time-sharing rental device installed on each electric vehicle; each user's handheld terminal, each access terminal and each sub-server are connected to the central server in communication, and each sub-server is respectively connected to a number of vehicle charging piles. The time-sharing rental devices of the electric vehicles are all communicatively connected with each sub-server. The invention has the characteristics of adopting an active time-sharing charging leasing method, combining the local peak and valley electricity prices and electricity consumption strategies, and greatly reducing the electricity consumption cost while not hindering normal car rental and return.

The invention relates to a method for detecting the address of a coke oven vehicle. An address detection device comprises an address coarse detection device and an address fine detection device; the address rough detection device indirectly detects the rough address of the vehicle through distance detection and a trigonometric function relation algorithm. The address coarse detection device ensures that only one unique distance measurement value of the vehicle at different positions (carbonization chamber) of the coke oven corresponds to the absolute value address value of the (carbonization chamber furnace number), and a vehicle control system records the corresponding relations. The address fine detection device indirectly detects the precise address of a vehicle through distance detection and a trigonometric function relation algorithm, the precise address detection device is used for measurement needing precise address analysis, wherein the continuous and repeated detection device is installed in a vehicle operation area; and the vehicle control system calculates the corresponding length on each section of measuring device according to the measured value of the address fine detection device. Through superposition of the rough address value and the accurate address value, the absolute value of the address value of the coke oven area where the vehicle is located can be accurately calculated.

An attendance system with a verification function relates to an attendance system. It solves the problem that the existing fingerprint attendance system cannot avoid using the fingerprint film to replace the personal attendance. The No. 1 wireless transceiver device of the present invention communicates wirelessly with the No. 2 wireless transceiver device. The signal output and input terminals of the No. 2 wireless transceiver device are connected to the control signal input of the positioning device and the positioning signal output terminal, and the signal output terminal of the pulse sensor is connected to the positioning device at the same time. The trigger signal input end of the trigger signal and the signal input end of the No. 2 wireless transceiver device, the pulse sensor is provided with the bracelet body to collect the pulse of the human body, the acquisition drive signal input end of the pulse sensor is connected to the drive signal output end of the sensor drive circuit, and the timing The trigger signal output end of the sensor is connected to the switch control signal input end of the sensor drive circuit. The present invention is applicable to the use of fingerprint attendance checking.

An incremental absolute encoder detection device, comprising an encoder installation platform, a control board, and a rotary drag device, the encoder installation platform has a built-in AC / DC power supply, a touch screen and a control board that can be installed, Frame structure of rotary drive unit and encoder fixing flange. The control board is installed on the inner side of the encoder installation platform to complete the closed-loop control of the rotary drag device, touch screen display and encoder detection logic. The rotary dragging device is a dual-shaft DC motor with a main encoder, which is used to drive the detected encoder to rotate synchronously with the main encoder, and is installed at the inner center of the encoder installation platform. The present invention collects the incremental signal and position value of the encoder under test and performs real-time verification with the feedback value of the main encoder, and can accurately capture the state of the feedback value of the encoder.