45 results about "Board communication" patented technology

The utility model discloses a kind of elevator service floor dynamic shielding systems, belong to elevator field, including elevator control mainboard, car control board, car expansion board and service floor switch group;The elevator control mainboard and car control board communication connection, car control board and car expansion board communication connection, car expansion board and service floor switch group communication connection;Service floor switch group is composed of multiple physical switches.The utility model innovatively uses hardware level physical switch trigger mechanism, and constructs the real-time dynamic shielding management system of elevator service floor.Compared with traditional scheme, with simple operation, response fast, reliability and other advantages, especially suitable for the temporary visitor passage control of intelligent building, the pollution area elevator isolation of medical building, the dynamic transport capacity allocation of traffic hub and other scenes, through the reliable control of hardware level, substantially improve building management efficiency and elevator operation safety.

A train interior monitoring system includes an on-board video storage unit that stores, as image information, video data of an interior of trains and parameter information; an on-board control unit that controls operations of devices installed on the trains; an on-board display unit that provides a display; an on-board communication unit that sends the image information stored in the on-board video storage unit when one of the trains is in a stoppage state; and a video analysis server that determines whether there is a left-behind article on each of the trains using the image information, and when the video analysis server detects presence of a left-behind article, generates a left-behind article notification indicating that there is a left-behind article. The on-board display unit displays contents of the left-behind article notification.

The utility model relates to the technical field of liquid treatment, in particular to a modularized small pipetting workstation which comprises a machine body and further comprises a pipetting module detachably connected to a moving part of a Z-axis lifting module. The control circuit board is mounted in the pipetting module, and the signal output end of the control circuit board is in communication connection with the signal input end of the pipetting module; the display control module is detachably connected to the outer wall of the machine body, and the signal output end of the display control module is in communication connection with the signal input end of the control circuit board. According to the utility model, the pipetting module is detachably connected to the moving part of the Z-axis lifting module, and the control circuit board is arranged in the pipetting module, so that the whole pipetting module can be detached and replaced, and pipetting modules with other functions or other models can be selected according to requirements; and the flexibility and the expansibility of the equipment are greatly improved.

The utility model relates to a universal protocol processing board and system. The universal protocol processing board comprises a carrier board and a plurality of core boards, the core board comprises a central processing unit, and the carrier board comprises a field programmable logic gate array and a plurality of inter-board communication components; the central processing unit of each core board is connected with the field programmable logic gate array through an inter-board communication assembly; the field programmable logic gate array is at least used for forwarding a preset number of to-be-processed signals to each central processing unit through the inter-board communication component; and the central processor is at least used for performing protocol conversion on the received to-be-processed signal. Thus, the central processing unit of each core board is connected with the field programmable logic gate array through the inter-board communication assembly, the field programmable logic gate array can be used for signal forwarding, it is guaranteed that the multiple central processing units process related tasks in parallel, and then the processing efficiency of the general protocol processing board is effectively improved.

The application relates to an inter-board heartbeat monitoring method and system, which comprises the following steps: determining the access state of a sub-board on a main board; based on the determined access state, performing heartbeat count verification on each sub-board once per heartbeat monitoring period for all accessed sub-boards; wherein the heartbeat count verification comprises: sending main board information for requesting sub-board feedback of sub-board information to the accessed sub-board, wherein the sub-board information comprises sub-board heartbeat count; in the case of receiving the sub-board information, judging whether the sub-board heartbeat count falls between a minimum critical heartbeat count and a maximum critical heartbeat count; in the case of not falling therebetween, increasing the verification error count and judging whether the verification error count is greater than a fault tolerance threshold; and in the case of the verification error count being greater than the fault tolerance threshold, determining that the sub-board is abnormally running. The heartbeat monitoring of the main board on the sub-board is realized through inter-board communication, which is convenient to implement and low in cost, and has universality.

The utility model is suitable for the technical field of lithium batteries, and provides a new energy lithium battery protection board, which comprises an IC (integrated circuit) chip module for monitoring the abnormal condition of a single battery and managing the single battery and / or a total battery pack; the communication interface is connected with the IC chip module and is used for communicating with other protection boards; the electromagnetic relay is used for controlling on-off of the single batteries; through the arrangement of the communication interface and the IC chip module, a plurality of lithium battery protection plates can form a series structure to form a volt number variable high-voltage battery pack, and each lithium battery protection plate can control the on-off of current to realize independent control; compared with the prior art, main electromagnetic relays are installed at the positive electrode and the negative electrode, on one hand, high temperature of the field effect MOS tube of a single protection plate caused by series high voltage use can be avoided, and on the other hand, the electromagnetic relays at the main positive electrode and the main negative electrode can be instantaneously disconnected to achieve protection when abnormity occurs.

The invention provides a core board, one side of the core board is provided with a first layer of welding spot pins composed of a plurality of welding spot pins, the first layer of welding spot pins are distributed in a square shape, and the first layer of welding spot pins comprise a first side, a second side, a third side and a fourth side in the anticlockwise direction; along the anticlockwise direction, the first side sequentially comprises a first basic system function area and a first low-speed audio and video input and output function area; the second side comprises a first low-speed inter-board communication function area; the third side sequentially comprises a second low-speed inter-board communication function area, a low-speed debugging and downloading function area, a third low-speed inter-board communication function area and a second low-speed audio and video input and output function area; and the fourth side sequentially comprises a fourth low-speed inter-board communication functional area, a second basic system functional area and a fifth low-speed inter-board communication functional area. By adopting the scheme, the operation stability, the operation convenience and the scene adaptability of the core board can be improved.

Embodiments of the present description provide a communication method, a network device, and a board. The method is applied to a network device, the network device comprises at least two boards, the at least two boards are each internally provided with a packet forwarding chip, a data channel and a control channel are provided in the packet forwarding chip, and the data channel and the control channel are isolated from each other during forwarding. The method comprises: a packet forwarding chip forwards a first packet by means of a data channel, the first packet comprising at least one of a service data packet, a protocol packet, and a management packet; and the packet forwarding chip forwards a second packet by means of a control channel, the second packet comprising at least one of an inter-board communication packet, a protocol packet, and a management packet.

The invention belongs to the technical field of train communication network scheduling. The invention provides a train-mounted communication network scheduling method and system. The method comprises the following steps: acquiring a communication data flow in a train communication network; the data stream is divided into a periodic data stream and a non-periodic data stream, and the periodic data stream is divided into a first-level periodic data stream and a second-level periodic data stream; dividing each basic time slot into a first-level time slice, a second-level time slice and a third-level time slice, and respectively transmitting the three data streams; according to an inter-time-slot load balancing algorithm, the periodic data streams are distributed, starting and stopping gating time of each time slice is set, three-level time slices are reserved for the non-periodic data streams, and a gating list of communication scheduling is obtained; and when the aperiodic data stream is present, scheduling optimization is carried out on the aperiodic data stream by adopting a trust mechanism to obtain final scheduling configuration. According to the method, important and real-time data are ensured to be transmitted preferentially, and real-time response and long-term scheduling balance of aperiodic data streams are realized.

This invention discloses a communication method and apparatus between circuit boards, relating to the field of circuit board communication technology. The method includes: upon receiving a header identifier message, starting a first timer to collect the first interval duration for receiving adjacent messages; when the first interval duration is greater than a first preset duration, clearing the DMA buffer of the current message data and initiating the next DMA receive interrupt; when the first interval duration is not greater than the first preset duration, continuing to receive messages in the current message data; upon receiving a long message indicating the message length in the current message data, determining a second preset duration based on the message length, starting a second timer to collect the second interval duration between receiving the long message and the final message in the current message data; when the second interval duration is greater than the second preset duration, clearing the DMA buffer of the current message data and initiating the next DMA receive interrupt. This invention can improve the accuracy of communication between circuit boards.

The application discloses a circuit board communication address allocation system, method and device and a storage medium. The system comprises a main circuit board and multiple sub-circuit boards, wherein the main circuit board is electrically connected with the input end of a resistor in an adjacent sub-circuit board through a voltage dividing power supply wire; the main circuit board and the resistor in the sub-circuit board form a series loop through a field effect transistor in the sub-circuit board; and the MCU of the main circuit board is in communication connection with the MCU of the sub-circuit board. The technical scheme of the embodiment of the application can quickly and accurately realize allocation of the communication address of the sub-circuit board, and solves the problems of low efficiency and large workload of the sub-circuit board communication address allocation.

The application discloses a kind of gas monitoring device and method for VOCs multi-component, belong to VOCs multi-component gas monitoring technical field.The device includes: gas sensor array, data sampling processing mainboard and gas sample gas path.Gas sensor array is connected with data sampling processing mainboard, and is placed in sensor cavity by gas sample gas path to deliver the gas to be measured;Each chip on mainboard is connected by PCB, carries out on-board communication based on various serial bus protocols, and is controlled and detected by host module to each functional module, calculation process;The method includes: pre-processing and response feature extraction to the sequence data obtained by sampling, sensor response value calculation, gas type and concentration identification, calculation.The application realizes real-time online monitoring for VOCs gas using multi-sensor array, including qualitative type identification and quantitative concentration calculation for single, mixed components of multiple VOC gases.

A method and device for monitoring the operating efficiency of a self-propelled silage harvester are disclosed. The method includes: real-time data collection from the field; continuous collection of field operation data via operating condition sensors and data acquisition devices; and real-time transmission of the monitoring data to an on-board processing terminal via an on-board communication device. The on-board processing terminal obtains the power consumption of the operating components based on the received monitoring data and filters the operating condition data. A data time lag analysis and correction model is established using a material flow sequence model of the header, feed roller, chopping roller, grain crushing roller, throwing fan, and throwing cylinder. Data anomalies are detected; missing data values ​​are filled; the correlation between various variables and operating efficiency is detected, and a univariate linear model is constructed; an operating efficiency model is constructed, establishing a data model of operating efficiency and the power of each component; the main factors affecting operating efficiency are identified, and a multiple linear regression operating efficiency detection model is established. This invention also discloses a device for monitoring the operating efficiency of a self-propelled silage harvester.

The invention relates to a control unit (1) for a vehicle (2), comprising a switching module (3), a safety microcontroller (4), an Ethernet switch (5), and an oscillator (6) connected to the safety microcontroller (4) and the Ethernet switch (5), which is configured to transmit a synchronization signal to the safety microcontroller (4) and the Ethernet switch (5) for communication between the safety microcontroller (4) and the Ethernet switch (5), characterized in that the switching module (3) is configured to switch off the synchronization signal or stop its transmission to the safety microcontroller (4) and / or the Ethernet switch (5) upon detection of a fault in the safety microcontroller (4), without interrupting the power supply to the Ethernet switch (5).

This application discloses a mobile terminal-based unmanned vehicle debugging system and method. The system includes a mobile terminal and a vehicle communication interface module. The unmanned vehicle includes a vehicle OBD interface module, an on-board communication receiver, an on-board communication network, and a vehicle controller. The mobile terminal stores unmanned vehicle debugging, control, and diagnostic software programs. In wired debugging mode, one end of the vehicle communication interface module is connected to the mobile terminal, and the other end is connected to the vehicle OBD interface module. The vehicle OBD interface module is connected to the vehicle controller through the on-board communication network. In wireless debugging mode, the mobile terminal communicates with the on-board communication receiver through a wireless network. The on-board communication receiver is connected to the vehicle controller through the on-board communication network.

The utility model relates to the technical field of gas detection, and discloses a low-power-consumption combustible gas detector. The objective of the utility model is to solve the technical problems of overhigh power consumption and difficulty in giving consideration to response speed and low power consumption due to the adoption of a continuous power supply mode in a traditional detector in the prior art. The detector comprises a detector main control board, the detector main control board is in communication connection with a sensor module, the sensor module comprises a main control MCU, and the input end of the main control MCU is connected with a gas detection unit and a temperature detection unit; the output end of the power supply unit is respectively connected with the detector main control board and the main control MCU; the master control MCU is an HC32L110 chip, and a PB1 pin of the HC32L110 chip is connected with the power supply unit so as to realize intermittent power supply control of the combustible gas sensor. According to the combustible gas detector, the power consumption of the sensor part is greatly reduced, and the modular sensor structure is convenient to maintain and replace; the differential operational amplifier circuit of the gas sensor has high-precision reference voltage, and reduces the error of gas detection, acquisition and conversion.

An emergency call system and method are based on wireless technology such as ultra-wideband (UWB). The emergency call system includes a mobile device including a communication module for transmitting and receiving a communication signal, an on-vehicle communication device including a processing module and a plurality of on-board communication modules, a vehicle speed detection device configured to detect a vehicle speed, and a main control device communicatively connected to the on-vehicle communication device and the vehicle speed detection device, where the main control device is configured to determine whether an emergency situation occurs based on position change information of the mobile device and a change of the vehicle speed, and send an alarm signal from a vehicle when it is determined that the emergency situation has occurred.

The utility model discloses a high and low temperature testing device which comprises a testing container, an interface assembly and a temperature adjusting assembly, the interface assembly comprises a test interface; a heat preservation cavity is formed in the test container and is used for placing a circuit board assembled with a wireless module; the test interface is arranged on the outer wall of the test container, one end of the test interface is in communication connection with a circuit board in the heat preservation cavity through a wire harness, and the other end is in communication connection with circuit board test equipment; the temperature adjusting assembly is used for adjusting the temperature in the heat preservation cavity so that the temperature in the heat preservation cavity can be increased or decreased to the preset temperature. According to the scheme, performance testing can be carried out on the circuit board assembled with the wireless module at high and low temperatures, the real state of the circuit board assembled with the wireless module at the high and low temperatures can be reflected, and the state of the circuit board assembled with the wireless module at the high and low temperature testing can be simulated; and the performance, reliability and potential problems of the circuit board can be known.

The invention provides a session keep-alive detection method and device for a distributed system. The method comprises the following steps: each interface board receives BGP session information of a BGP peer of a distributed system synchronized by a main control board through an inter-processor communication IPC channel serving as an inter-board communication channel; wherein the BGP peer IP address at least comprises the BGP peer IP address and the maximum keep-alive time; each interface board establishes a BGP session table entry to record the maximum keep-alive time corresponding to the BGP peer IP address, a packet receiving counter and a packet sending counter are set for the BGP session table entry record, and first period flag bits are set for the packet receiving counter and the packet sending counter respectively; and when any interface board finds the BGP session table item of the board based on the received peer BGP keep-alive message, resetting the count value of the packet receiving counter of the board and clearing the first period flag bit.

Apparatuses, methods and automobiles (e.g., electric vehicles (EV), etc.) that send power from their energy storage to an electrical to a home are disclosed. In some embodiments, an electric vehicle (EV) includes: an energy storage; a device to send power from the energy storage to a building, to one or more other vehicles and / or to a load; on-board communication hardware; and one or more processors to control transfer of power with the building.

The mower fleet management device is configured to control a plurality of mowers to work in collaboration. Each of the mowers includes an on-board communication module and an on-board positioning and navigation module. The mower fleet management device includes: a map loading module configured to acquire a map of a working land parcel; a control terminal communication module configured to wirelessly communicate with the on-board communication modules to acquire status information of the mowers; and a working region assigning module configured to assign a working region to each of the mowers according to the status information and the map. The on-board positioning and navigation module of each of the mowers guides the mower to work in the corresponding working region according to the assigned working region.

A train information management apparatus includes a calculator that calculates a first travel position of a train based on the number of revolutions of wheels of the train, a beacon information receiving unit that receives information from a beacon, an on-board communication unit that communicates with a base station and acquires identification information on the base station, a storage unit that stores, when the train passes over a specific beacon, combined information of information on the specific beacon passed over, the identification information on the base station with which the on-board communication unit communicates, and information on a second travel position of the train, and a correction control unit that corrects the first travel position with the second travel position using the combined information when the train passes over the specific beacon during operation in which the train does not stop at stations at a specified frequency.

The invention relates to the field of power distribution automation equipment, in particular to a multi-board-card communication method and device of a medium-voltage power distribution terminal and a medium. Firstly, an FPGA chip is arranged on a management CPU board, the FPGA chip is connected with a management CPU through an SPI interface, the FPGA chip is connected with a network port I and a network port II through an RMII interface, the network port I is connected with an external network or external equipment, and the network port II is connected with a protection CPU board; and then receiving the data at the network port I and the network port II, firstly performing data verification, performing data frame type identification after the verification is passed, and controlling the data flow direction according to an identification result. According to the method, high-speed, low-delay and reliable data interaction between the boards can be realized in the multi-CPU power distribution terminal, GOOSE messages can be efficiently and transparently forwarded, meanwhile, the communication burden of the management CPU is remarkably reduced, and the system design is simplified.

The utility model provides a handheld medical waste management mini all-in-one machine which comprises a machine body, a weighing module, a printing module, a scanning module and a display module, the weighing module is arranged below the machine body, the printing module is arranged on the machine body, and the scanning module and the display module are arranged on the back face and the front face of the machine body respectively. A main control board is arranged in the machine body, a positioning module, a Bluetooth module and a communication module are integrated on the main control board, and the weighing module, the printing module, the scanning module and the display module are all in communication connection with the main control board. The weighing module is used for weighing the medical waste, the printing module is used for printing the medical waste information into a label, and the scanning module is used for scanning a traceability code ribbon to directly obtain the information bound by a department using a mobile phone; the current position can be obtained through the positioning module and displayed on the display module, the Bluetooth module is matched with a Bluetooth beacon of a department to confirm a path, the communication module uploads medical waste data to a cloud end and a software background, and more efficient and scientific management is achieved.

This application provides a method, apparatus, device, storage medium, and product for safety testing of intelligent connected vehicles. The method includes: responding to user input on a target fault test control on an operation panel; determining the target test script and target test cases for the target fault test control; determining the access point of the on-board communication signal transceiver in the vehicle network based on the target test cases and the vehicle network topology; connecting the on-board communication signal transceiver to the vehicle network through the access point; creating a simulated network node through the on-board communication signal transceiver according to the requirements of the target test cases; simulating vehicle signals through the simulated network node and executing the target test cases corresponding to the target fault test control based on the target test script; acquiring the execution results corresponding to the target test cases through a data acquisition device; and determining the vehicle safety test result based on the execution results. This simplifies the testing operation and ensures the accuracy of the test results.

The utility model discloses a train-mounted communication device. According to the utility model, the MCU and the UART008 serial port communication control board are combined to form a modularized control module, so that the flexibility and maintainability of the system are improved; according to the utility model, various communication standards such as RS232, RS422, RS485 and the like are supported, different communication distances and environment requirements are adapted, two communication modes are provided, the UART008 serial port communication control board or the communication connection module can be selected for data transmission according to the size of data, the application range of the device is widened, and the application range of the device is expanded. Effective communication between the trains and between the trains and the ground console and traffic intelligence are achieved.

The utility model discloses a solenoid valve coil delay control device, include: solenoid valve group, include: a plurality of juxtaposition setting solenoid valve, series connection between the solenoid valve, the solenoid valve include: solenoid valve body, coil control board and solenoid valve coil, coil control board with solenoid valve coil electricity is connected, and coil control board is used for storing the point position information and delay control information of solenoid valve, and coil control board is used for controlling the open or close of solenoid valve coil, total control board, with the solenoid valve of assembling in the valve group first position through wiring plug row electricity is connected, mobile operation terminal is connected with total control board communication, and mobile operation terminal is used for generating the operation instruction of solenoid valve. The application can reduce cost and operation difficulty, improve compatibility and expansibility.

The application relates to a method and device for determining an on-board communication service, a network element and a storage medium. The method is applied to a first proxy call session control function (P-CSCF) network element, and comprises the following steps: in the case of determining that a first device is a regenerative mode satellite access, a first session initiation protocol (SIP) message is sent; and the first regenerative mode satellite access information of the first device is included in the first SIP message. By using the method, the IMS network can determine the access information of both parties in a communication, so as to determine whether the IMS voice service in the UE-satellite-UE communication mode can be provided.

The invention discloses a high-real-time power equipment inter-board communication method and system based on a zero copy technology, and relates to the technical field of power system communication, and the method comprises the steps: defining a communication equipment logic instance through an enumeration type, and binding communication equipment through registering a callback function; the registered communication equipment is polled in the high-speed sampling interruption, and a message to be analyzed is received; distinguishing the message type through the type code in the field of the to-be-analyzed message; directly calling a registered callback function to process the data of the message to be analyzed based on the message type; wherein the callback function is only used for data copying. According to the invention, the technical problems of single communication equipment type, poor expansibility, high data transmission delay and insufficient system reliability in the prior art are solved.

The invention discloses a hinge steering system of a pure electric loader and a multi-source disturbance suppression method of the hinge steering system. Comprising a frame assembly, a hinge mechanism, a motor electromagnetic quantity estimation unit, a motor displacement and speed measurement unit, a hinge angle measurement unit, a steering angle acquisition unit, a vehicle motion state measurement unit, a load identification and estimation unit, an electric hinge execution unit, a linear motor controller, a whole vehicle domain controller, a vehicle-mounted communication network and a power supply module. The linear motor is used for directly outputting thrust to achieve hinged steering, traditional hydraulic and mechanical transmission links are eliminated, the system structure is more compact, meanwhile, the high response speed and the high steering precision are achieved, and therefore the operation stability and the control reliability of the whole machine are improved.