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

The invention discloses a time-sharing leasing system and method for electric vehicles, which includes a central server, several sub-servers, several access terminals connected to the Internet, several automobile charging piles equipped with communication and processing devices and a Time-sharing rental device on the Internet; each access terminal is equipped with a WEB client and a WEB administrator, each access terminal and each sub-server are connected to the central server, and each sub-server communicates with several car charging piles Connection, the time-sharing leasing device of each electric vehicle is all communicated 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 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 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 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 communication method and system for a mowing robot based on a boundary electromagnetic signal, comprising: receiving a boundary electromagnetic signal sent by a base station, the boundary electromagnetic signal being a carrier signal modulated by a low-frequency source signal and a high-frequency signal, the The low-frequency source signal includes a complete periodic waveform and a non-complete periodic waveform; amplifying the boundary electromagnetic signal; filtering the amplified boundary electromagnetic signal; demodulating the filtered boundary electromagnetic signal to obtain the low-frequency source signal, and identifying The combined information of the complete cycle waveform and the incomplete cycle waveform in the low-frequency source signal is compared with the preset action instruction by comparing the identified combination information, and corresponding actions are executed according to the comparison result. The invention realizes the communication between the base station and the mowing robot without increasing equipment cost, and has strong anti-interference ability.

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 present invention provides a high-reliability HDLC communication information verification method and device applied to a flexible straight valve base control system. CRC check is performed on the received data, the data includes frame header, user data R0-R6, checksum check code R7 and CRC check code; after the CRC check is passed, checksum check is performed on the data. After the verification and verification are passed, word verification is performed on the data; after the word verification is passed, continuous judgment is performed on the data. The technical solution provided by the present invention enables the HDLC communication of the flexible direct current transmission system VBC to have extremely high stability and reliability. When the message is correct, it can ensure that the message passes the verification; when the message is wrong, it can ensure that the erroneous message is quickly and reliably screened out and reported.

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.

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.