35results about How to "Realize two-way data transmission" patented technology

The invention discloses a data transmission method between heterogeneous systems and a data transmission system, which aims at solving the problem that the data exchange between heterogeneous systems under physical network safety and defence can not be realized in the prior art. The method comprises that: a first communication system communicates with a first data channel between a data entry node of the system and a second communication system, and the data gateway node performs security detection for receiving the data sent by the second communication system through the first data channel; the first communication system disconnects the first data channel and communicates a second data channel between the data entry node and the data processing node of the system, the data processing node converts the format of the data which is received by the second data channel and undergone the security detection to the data format supported by the database of the system, and then saves the data to the database of the system. With the technical scheme of the invention, the data exchange between the heterogeneous systems under the higher data security environment can be realized.

The underground personnel locating and rescuing system and method features the radio monitoring node network comprising radio monitoring node sets arranged along the mine drafts and the miners' carried radio trackers. Each of the radio monitoring node sets consists of three radio monitoring nodes on sides and top of mine drift. The present invention constitutes automatic 3D locating system with underground radio network to monitor the locations of the miners, especially in mine disaster.

The invention relates to a urban intelligent parking network management system comprising an intelligent big data control center, wireless geomagnetic sensors installed in a parking lot, vehicular electronic tags installed on vehicles, and first readers installed on the entry and the exit of the parking lot. Second readers are installed in the wireless geomagnetic sensors and identify the vehicular electronic tags in order to detect parking stall states and vehicle owner information. Communication connection among the wireless geomagnetic sensors at different parking stalls is achieved through Bluetooth modules and the wireless geomagnetic sensors are connected with the intelligent big data control center through a wireless WIFI transmission module. The first readers read the vehicular electronic tags to obtain vehicle information and automatically calculate parking charge according to parking time. The urban intelligent parking network management system also comprises a smart phone terminal in which an ETC-style non-stop charging program is installed. The urban intelligent parking network management system standardizes and rationalizes urban parking, guarantees high parking efficiency, and achieves an intellectualized characteristic.

The invention relates to the mobile terminal used for sending and receiving short message, and comprises a short message transceiver platform and a short message management platform. Said short message management service platform is connected to the internet via WEB and forms a bidirectional calling mode with the short message transceiver platform to realize the collection, analysis, storage, process and release functions between both message sending and receiving ends.

The invention relates to an AC charging pile control system of a three-dimensional garage. The system comprises an intelligent control module, a plurality of combined functional modules, a plurality of charging piles and a cloud server. The plurality of combined functional modules are connected with the intelligent control module. The intelligent control module is connected with the cloud server. Each charging pile is connected with one combined functional module. Furthermore each charging pile is connected with a cable. Furthermore one end, which is far from the corresponding charging pile, of the cable is connected with a corresponding parking space of the three-dimensional garage. The AC charging pile control system can perform individual control on the charging pile of each parking space in the three-dimensional garage through the intelligent control module, thereby realizing centralized management and high convenience. Furthermore the combined functional module can correspond with one or a plurality of charging piles, thereby realizing flexible arrangement. Remote distribution and remote control are realized through the cloud server, thereby realizing high efficiency. The AC charging pile control system has relatively high promotion value for electric vehicle popularization.

The invention discloses a communication interface circuit based on a power line, and the circuit comprises: a power supply isolation unit which separates electric energy on a communication bus, and provides working electric energy for the normal operation of a circuit main control unit; a data sending unit which is used for converting communication data into high-frequency signals and loading thehigh-frequency signals to the power line, and comprises a carrier synthesis circuit and a signal and power supply coupling circuit; and a data receiving unit which is used for demodulating data on thecommunication bus and converting the demodulated data into a level signal which can be identified by the controller, and comprises a filter circuit, a differential amplification circuit, a comparatorand a logic signal conditioning circuit. According to the communication interface circuit based on the power line, based on an existing power supply line, bidirectional data transmission between theoutside and a product main control system can be achieved under the condition that extra connection lines are not added, and the communication function is achieved.

The embodiment of the invention provides a wireless remote controller, engineering machinery and a wireless remote control system, and relates to the field of engineering machinery. The wireless remote controller comprises a display module, a key module, a signal transmission module and a processing module; the display module, the key module and the signal transmission module are electrically connected with the processing module; the signal transmission module is used for receiving working state information sent by the engineering machinery; the key module is used for receiving user input information; the processing module is used for generating a wireless control instruction according to information input by a user, and the signal transmission module is further used for sending the wireless control instruction to the engineering machine. The processing module is further used for generating display information according to the working state information and the user input information, and the display module is used for displaying the display information. The wireless remote controller, the engineering machinery and the wireless remote control system can reflect the operation condition of the equipment, and do not provide accurate reference for operators, so that the engineering machinery can be effectively controlled, and accurate operation is ensured.

The invention discloses an audio and video playing method. The method comprises the following steps: S1, an audio and video instruction input by a user is detected; S2,a terminal streaming media server obtains a corresponding audio and video stream from the starting end streaming media server; S3, the terminal streaming media server identifies the codes of the audio and video streams and transcodes the codes; S4, the terminal streaming media server transmits the converted audio and video streams to a web browser, and the web browser acquires audio and video stream codes identified by the web browser and performs decoding operation; and S5, the audio and video by using a webpage player is played and displayed. The invention further provides a storage medium and an audio and video playing device, according to the method provided by the invention, the network stream taking and decoding conversion process is independent to provide service for a browser or a client player, and meanwhile, the display playing function of the browser is used for playing, so that the problem of terminal installation and deployment can be solved. Playing of audio and video streams in a specific format can besupported, and the customization function requirement is met.

The invention relates to the technical field of embedded system application, and discloses a device for an FPGA, the device comprises an upper computer; a Zynq chip which is configured to establish a first program loading channel based on a PCIe bus protocol between the Zynq chip and the upper computer; the FPGA chip which is configured to establish a second program loading channel based on the PCIe bus protocol between the FPGA chip and the Zynq chip; the upper computer sends a to-be-loaded program file to the Zynq chip through the first program loading channel, and the Zynq chip sends the to-be-loaded program file to the FPGA chip through the second program loading channel, so that the FPGA chip loads the to-be-loaded program file. According to the device, the loading rate of the FPGA chip to the program file and the data transmission continuity can be improved, and the integration and the integration degree of the platform are improved. The invention further discloses a FPGA program dynamic loading and data transmission method.

The invention discloses a Bluetooth control based UAV remote control system which comprises a trainer remote controller and a student remote controller. Each of the trainer remote controller and the student remote controller is provided with a Bluetooth communication module to realize a mutual communication function, a protective cover is hinged to one side of the upper end of the remote controller and connected to the remote controller via a positioning device, and a mobile phone is clamped in the protective cover via a clamping mechanism. The Bluetooth communication module can switch the communication manner, the trainer UAV remote controller sends an instruction to the student UAV remote controller when a guidance instruction is needed, and the a high-speed transmission mode is startedto realize large-amount bidirectional data transmission when bidirectional data transmission with the clamped mobile phone is needed. The system has the advantages that one trainer can guide multiplestudents, high-speed large-amount data transmission can be realized, and an aircrash accident can be effectively prevented.

The method discloses information interaction methods and an information interaction system based on microphone equipment and related equipment. The method includes the steps that a first communicationchannel is obtained by a first communication interface of the microphone equipment and a first communication interface of a user terminal through wireless connection, the microphone equipment can send to-be-processing audio-frequency data to the user terminal through the first communication channel, and the user terminal executes a specified operation on the to-be-processed audio-frequency data after the to-be-processed audio-frequency data are received. By implementing the embodiment of the invention, wireless data transmission from the microphone equipment to the user terminal can be realized, use flexibility of the microphone equipment can be enabled to be improved, and thus use experience feeling of a user can be improved.

The invention discloses an LED display module, an LED display screen and control equipment of the LED display screen. The LED display module comprises an LED lamp module, a first bidirectional bus driver and a data feedback module. Wherein the data feedback module is respectively connected with the LED lamp module and the first bidirectional bus driver and is used for forming a plurality of pathsof current signals and inputting the current signals into the LED lamp module to generate feedback data; and the first bidirectional bus driver is used for sending and receiving data to and from the LED lamp module and the data feedback module. According to the embodiment of the invention, the bidirectional data transmission of the LED display module can be realized at low cost, so that the control system can automatically identify the information and the working state of the LED display module, and the intelligent control of the LED display module is realized.

The invention relates to a remote somatosensory actuating device based on a network. The remote somatosensory actuating device is characterized that the device is installed in a network environment and comprises a controller (1), an actuator (2) and a sensor array (3); a unique ID number of the remote somatosensory actuating device and a control strategy are stored in the controller (1), the controller (1) controls input of the sensor array (3) and output of the actuator (2), and the sensor array (3) comprises a force sensor, a displacement sensor, a temperature and humidity sensor and the like; the actuator (2) converts an instruction of the controller (1) into output of multiple physical quantities such as force or displacement; a network server (4) is used for coordinating instruction transceiving and role allocation among multiple somatosensory actuating devices on the network. According to the remote somatosensory actuating device, a specific control algorithm is adopted by the controller, an immersive feeling can be generated between the local and a remote operator, network extension of human boy touch feeling is achieved, and the device can be applied to the fields such as virtual reality, network interaction teaching, network games and remote medical treatment.

The invention discloses an intelligent parking comprehensive control and management device. The outer surface of the device body is provided with a display screen, a control management keyboard and awireless transceiver. A single chip microprocessor controller is arranged in the device body and is therein provided with a database, a communication module and read-write module. The database is therein provided with a temporary vehicle database and a non-temporary vehicle database. The temporary vehicle database and the non-temporary vehicle database are both therein provided with a parking space management module, a vehicle owner management module and a vehicle type management module. The communication module is therein provided with a Bluetooth module, a WIFI module and a 3G / 4G module. Theread-write module is therein provided with a display module and an input module. A wireless geomagnetic vehicle detector is arranged in each parking space, and is therein provided with a parking space electronic tag, an image sensor and a parking space wireless transceiver. The invention realizes the bi-directional data transmission between vehicles and the databases, so as to realize the monitoring of the vehicle, and can intelligently identify the parking conditions of the temporary parking vehicles and the non-temporary parking vehicles, thereby realizing functions of distinguished charging, classified management and the like.

The invention discloses a vehicle-mounted wireless locomotive signal control device. It includes a vehicle-mounted host, a signal display mechanism, a vehicle-mounted query device, GPS satellite positioning equipment and a data transmission station, wherein the vehicle-mounted host computer is connected to the data transmission station and the GPS satellite positioning equipment through the RS-232 interface, and the RS-485 The interface is connected with the vehicle-mounted query device, and the signal display mechanism is connected with the vehicle-mounted host through a cable; the vehicle-mounted host has a CPU minimum system circuit, a watchdog / reset circuit, a real-time clock circuit, a display control circuit, a lighting circuit, communication interface circuit, data storage circuit and data dump circuit. The vehicle-mounted wireless locomotive signal control device is used to form a wireless locomotive signal system, which can realize two-way wireless information exchange between the station control device and each row of locomotives, and greatly improves the automation level of train operation in my country.

The invention provides a modem based on GSM (Global System for Mobile Communications) or GPRS (General Packet Radio Service), which comprises a main module. The invention is characterized in the invention also includes an antennal interface module, an Ethernet interface module, and an asynchronous serial interface module which are connected with the main module by separate circuits. The main module consists of a radio frequency function block and a baseband control module which are connected by circuits. The modem provided by the invention is based on GSM (Global System for Mobile Communications) or GPRS (General Packet Radio Service), and is inlaid with TCP or IP (Transmission Control Protocol or Internet Protocol) protocol stack inside. With the standard serial communication interface, the antennal interface and an Ethernet interface, the modem is suitable to all equipments with serial interface terminals, thus providing the terminal equipments without TCP or IP protocol processes with radio communication capability.

The invention discloses a bidirectional communication isolating device of a power plant. With the adoption of the bidirectional communication isolating device, communication isolation between multiple unit plant control systems is realized, and meanwhile, bidirectional data exchange between multiple unit plants and a public system is realized. The main functions of the bidirectional communication isolating device are as follows: TCP (transmission control protocol) connection between unit plant application gateways is prohibited to be directly and indirectly established; TCP connection is established between the application gateways of the unit plants and the public system as well as inside and outside network cards of the insolating device; and the inside and outside network cards of the insolating device are in non-networked connection in the device, so that complete physical isolation between multiple unit plant control networks is realized, and meanwhile, bidirectional data exchange is realized between the unit plants and the public system in a non-networked mode; comprehensive message filter and assess control based on an IP, a transmission protocol, a transmission port and a communication direction are supported by adopting a transparent message monitoring mode without an IP address and an MAC (multi-access computer) address; a customized application layer protocol function is supported; and the bidirectional communication isolating device has safe and easy-to-use maintaining and managing manner, and has a graphical maintaining and managing tool based on a centralized safe management manner, so that the requirements on the maintainability and usability of the process system are satisfied.

The invention discloses a demand response terminal and system and a control method of the system. The demand response terminal includes a pre-module, a touch control module and a response module. Thepre-module is in communication connection with a communication manager outside the demand response terminal, and is used for receiving and processing electricity consumption data. The touch control module is communication connection with the pre-module, and is used for displaying the electricity consumption data and inputting field operation instructions. The response module is in communication connection with a remote master station, and is used for uploading the electricity consumption data and receiving demand response tasks from the remote master station. The pre-module generates control instructions according to the demand response tasks and transmits the control instructions to electric equipment. Bidirectional data transmission between the remote main station of the power supply enterprise and the electric equipment can be realized, so that the power supply enterprise not only can know the electricity consumption situation of the electric equipment at any time, but also can control the electric equipment. The power supply enterprise and users can interact with each other, and the functions of the demand response terminal can be more diversified.

A public rental house intelligent lock information state transmission method comprises the steps that a rental house network platform issues an instruction to inquire a product serial number and an updated version of an intelligent lock, an intelligent lock control chip uploads the networking state of the intelligent lock to the public rental house network platform, the public rental house network platform issues an instruction to enable the intelligent lock to reset a WIFI wireless network and configure the intelligent lock, and the intelligent lock sends the instruction to the public rental house network platform. And the intelligent lock control chip uploads the real-time state information of the intelligent lock to the public rental housing network platform, and the public rental housing network platform carries out feedback processing. According to the intelligent lock, data and network configuration is carried out on the intelligent lock through Bluetooth or WIFI, a user can check the real-time state of the intelligent lock on a public rental house network platform, under the condition that the WIFI network is disconnected, the intelligent lock control chip can store the sent state information into a built-in storage, and when the network is reconnected, the intelligent lock can be unlocked. And the intelligent lock control chip automatically sends the data information which is not sent to the public rental house network platform, so that data packet loss is avoided.

The invention discloses a bidirectional communication interface circuit based on current sampling, which includes a data transmission drive circuit and a data reception drive circuit; the data transmission drive circuit outputs power supply and transmits data signals; The sampling resistor is converted into a voltage signal, and after the voltage signal is amplified, compared with the threshold voltage, it is converted into a level signal that can be recognized by the controller. The bidirectional communication interface circuit based on current sampling provided by the present invention is based on the existing power supply line, and can realize bidirectional data transmission between the outside world and the main control system of the product without adding additional connections, thereby realizing the communication function.

The invention discloses an oil well data exchange system for realizing data transmission between a ground operating platform and an underground device. The system comprises a ground reader-writer, a low-frequency RFID (radio frequency identification) tag and an underground data processing subsystem. The underground data processing subsystem comprises an antenna arranged on an oil well pipeline, a read-write module and a common memory. The ground reader-writer writes data into the low-frequency RFID tag, the read-write module reads the data in the low-frequency RFID tag and the data are stored in the common memory; and if the read-write module is judged to download the tag, the data information in the tag is sent to the underground device; and if the read-write module is judged to upload the tag, the data stored in the common memory by the underground device are written into the low-frequency RFID tag, and the ground reader-writer reads the data. The system realizes bidirectional data transmission above and below the well by using the low-frequency RFID tag as a medium, plays a role in buffering the data through the common memory, and does not need to distribute or acquire the data for the underground device at the same time of reading / writing the tag so as to shorten the data reading / writing time and improve the reliability.

The invention relates to an AC charging pile control system of a three-dimensional garage. The system comprises an intelligent control module, a plurality of combined functional modules, a plurality of charging piles and a cloud server. The plurality of combined functional modules are connected with the intelligent control module. The intelligent control module is connected with the cloud server. Each charging pile is connected with one combined functional module. Furthermore each charging pile is connected with a cable. Furthermore one end, which is far from the corresponding charging pile, of the cable is connected with a corresponding parking space of the three-dimensional garage. The AC charging pile control system can perform individual control on the charging pile of each parking space in the three-dimensional garage through the intelligent control module, thereby realizing centralized management and high convenience. Furthermore the combined functional module can correspond with one or a plurality of charging piles, thereby realizing flexible arrangement. Remote distribution and remote control are realized through the cloud server, thereby realizing high efficiency. The AC charging pile control system has relatively high promotion value for electric vehicle popularization.

The invention discloses a communication system used for underground machinery equipment. The communication system is characterized by comprising a wireless transmission part and a wire transmission part, wherein a master controller of each piece of equipment is connected with a signal conversion device through the wireless transmission part and is connected with ground equipment through the wire transmission part; the signal conversion device comprises a modem and a serial server; the serial server receives a data signal and sends the data signal to the modem; an underground telephone is connected with the modem through a telephone wire; and the modem is connected with an asymmetrical digital subscriber loop (ADSL) repeater through the telephone wire, is connected with digital subscriber line access multiplexer (DSLAM) equipment, and is connected with ground telephone and data receiving equipment finally. By combining wireless and wired modes, the communication system realizes two-waytransmission of voice and data with the help of an original telephone wire without mutual influence, greatly reduces system cost, and improves communication safety.

A visible light communications VLC related device and method is presented. In embodiments in which a terminal can receive only visible light data, the terminal can feed back data to a VLC device, thereby implementing bidirectional data transmission. In the method, the terminal feeds back uplink data to the visible light communications device using a wireless communication signal, to implement bidirectional data transmission in a visible light communication scenario.

The invention discloses a Web application instant message notification system, a Web application instant message notification method and a Web application instant message notification server. The Web application instant message notification system comprises a message distribution platform, a data transmission control channel and a plurality of communication servers, the communication server side is used for carrying out bidirectional data transmission with the user side corresponding to the communication server side based on a Web Socket protocol; the message distribution platform is used for distributing the received message to each communication server through the data transmission control channel in a broadcast form; the data transmission control channel is used for controlling the messages distributed by the message distribution platform to be directionally broadcasted to one or more specified communication servers through a self-defined first data transmission strategy; through the instant message notification system, bidirectional data transmission between the application rear end and the application front end of the Web application can be realized, the application rear end is allowed to actively send data to the application front end, in addition, the message of the application rear end is directionally broadcasted to the specified user side, and the diversified requirements of different Web applications are met.

The invention relates to an integrated controller special for a ship model. The integrated controller comprises a remote controller, a remote control receiving controller, a remote control switch channel expansion board, a stepping motor channel expansion board and a relay channel expansion board. The remote controller is used for converting multiple operations of a user into radio signals and sending the radio signals to the remote control receiving controller; the ship body is controlled to advance through an accelerator and gear selection; a rudder is controlled through a main rocker; steering engine channels respectively controlled by two shafts of the rocker are selected through a dial switch; and the remote control switch and the relay channel are controlled through the dial switch.The remote control receiving controller analyzes and executes a remote controller instruction through the control chip and the radio receiver, the 12-channel steering engine can be controlled to act according to the remote controller instruction through a steering engine driver, and a 4-channel stepping motor is controlled to act through a stepping motor driver.

The invention discloses a bidirectional communication isolating device of a power plant. With the adoption of the bidirectional communication isolating device, communication isolation between multiple unit plant control systems is realized, and meanwhile, bidirectional data exchange between multiple unit plants and a public system is realized. The main functions of the bidirectional communication isolating device are as follows: TCP (transmission control protocol) connection between unit plant application gateways is prohibited to be directly and indirectly established; TCP connection is established between the application gateways of the unit plants and the public system as well as inside and outside network cards of the insolating device; and the inside and outside network cards of the insolating device are in non-networked connection in the device, so that complete physical isolation between multiple unit plant control networks is realized, and meanwhile, bidirectional data exchange is realized between the unit plants and the public system in a non-networked mode; comprehensive message filter and assess control based on an IP, a transmission protocol, a transmission port and a communication direction are supported by adopting a transparent message monitoring mode without an IP address and an MAC (multi-access computer) address; a customized application layer protocol function is supported; and the bidirectional communication isolating device has safe and easy-to-use maintaining and managing manner, and has a graphical maintaining and managing tool based on a centralized safe management manner, so that the requirements on the maintainability and usability of the process system are satisfied.

The invention discloses a data transmission method between heterogeneous systems and a data transmission system, which aims at solving the problem that the data exchange between heterogeneous systems under physical network safety and defence can not be realized in the prior art. The method comprises that: a first communication system communicates with a first data channel between a data entry node of the system and a second communication system, and the data gateway node performs security detection for receiving the data sent by the second communication system through the first data channel; the first communication system disconnects the first data channel and communicates a second data channel between the data entry node and the data processing node of the system, the data processing node converts the format of the data which is received by the second data channel and undergone the security detection to the data format supported by the database of the system, and then saves the data to the database of the system. With the technical scheme of the invention, the data exchange between the heterogeneous systems under the higher data security environment can be realized.