119 results about "Board communication" patented technology

The invention discloses a cross-platform development board communication fault feedback method and device and a storage medium, and relates to the technical field of communication, after main and sub development boards are initialized, a communication state machine is established, a heartbeat timer is started, heartbeat packets are periodically received and sent, an overtime threshold value is dynamically set in an idle state, and error feedback is triggered if no heartbeat packet is received in an overtime state. The connection state periodically detects communication quality, a reconnection mechanism is triggered if continuous packet loss exceeds a threshold value, an error report is generated and reported when reconnection failure reaches an upper limit, error feedback comprises data packet sending, log recording, alarm triggering and the like, and a reconnection request comprises an identifier, a timestamp and a historical communication index; according to the method, communication interruption caused by misjudgment is reduced, and the communication stability and reliability are improved.

The invention discloses a vehicle-mounted communication network diagnosis processing method and related equipment, and relates to the technical field of vehicle testing, and the method comprises the steps: obtaining a master-slave mode configuration signal of an external switch; when the master-slave mode configuration signal is in a whole vehicle communication mode, transmitting a vehicle-mounted communication network diagnosis message of a diagnosis computer to a vehicle-mounted communication system of the tested vehicle through a direct-through forwarding mode by an external switch; and when the master-slave mode configuration signal is a one-piece communication mode, virtual local area network identifier injection processing is performed on the vehicle-mounted communication network diagnosis message through the external switch, and after a target message is obtained, the target message is forwarded to a target electronic control unit of the tested vehicle. Through an automatic identification and judgment mechanism of the external switch based on a master-slave mode, automatic processing of virtual local area network identifier configuration is realized, a whole vehicle test scene and a single-piece test scene are considered, and compatibility and operation convenience of vehicle-mounted communication diagnosis are effectively improved.

The embodiments of the present application relate to the technical field of on-board communications. Provided are a message sending control method and apparatus, a vehicle and a storage medium. The method comprises: by continuously receiving periodic messages sent by an on-board bus, recording a time interval of adjacent periodic messages reaching a master node; each time the master node completes one task execution period, according to the time intervals of all adjacent periodic messages received in the task execution period reaching the master node, determining an on-board bus load corresponding to the task execution period; when the on-board bus load corresponding to the task execution period exceeds a load threshold value, recording the task execution period; and when the number of the recorded task execution periods reaches a number threshold value and the recorded task execution periods are periodic, acquiring a target periodic message meeting a preset delay sending condition, and delaying the next sending time of the target periodic message. The present application balances the load on the on-board bus, and reducing message loss conditions.

The invention discloses an intelligent targeted dredging method for an expressway confluence area, which belongs to the technical field of intelligent traffic and comprises the following steps: S1, acquiring traffic flow, vehicle speed, lane occupancy and weather parameters of a main road / ramp through a vehicle-mounted communication unit; s2, constructing a traffic capacity baseline value based on a random forest model; s3, when the traffic capacity is lower than a dynamic threshold value, calling a deep reinforcement learning model through an edge computing node; s4, a hierarchical pushing mechanism is adopted to distribute a control instruction, and variable information board speed limit values are issued to non-network-connected vehicles; and S5, when a residual error between a predicted value and an actual value of the sensor data confidence coefficient continuous time window exceeds a historical mean value standard deviation, switching to a time sequence prediction model to generate a conservative control strategy. According to the method, a multi-index feedback mechanism based on the carbon emission, the average delay time and the number of traffic conflict points is constructed, the weight is dynamically distributed through the entropy weight method, and quantitative evaluation of the dredging effect is achieved.

A system and a method include an onboard communication system configured to be disposed onboard a vehicle system and comprising one or more processors. The one or more processors may generate a session key that includes a shared secret key that is known by the onboard communication system and an off-board communication system, generate one or more encryption keys by hashing the session key with an identifier based on a cycle time that is known by the onboard communication system and the off-board communication system, generate one or more encrypted messages by encrypting one or more messages associated with one or more of the vehicle system or a route over which the vehicle system moves based on the one or more encryption keys, and communicate the one or more encrypted messages from the onboard communication system to the off-board communication system.

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.

The application provides an inter-board communication method, a network device and an electronic device. The inter-board communication in the application does not depend on a socket mechanism, but places message receiving and sending, message fragmentation and fragment recombination in a user state. In the user state, zero-copy can be used for inter-board communication, without the need for copy actions between a kernel state and the user state, thereby reducing CPU resource and memory bandwidth consumption caused by copy actions between the kernel state and the user state.

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 invention discloses a 12-lead electrocardiosignal acquisition universal module, which relates to the technical field of electrocardiograph detection and comprises a signal conditioning acquisition module, an analog filter module, a main controller module, a power management module, a 12-lead electrocardiosignal pin, an inter-board communication pin and a power pin. A human body electrocardiosignal is transmitted to the analog filter module through the 12-lead electrocardiosignal pin; the filtered signals are transmitted to the signal conditioning and collecting module and are converted into digital signals which are transmitted to the main controller module; the main controller module transmits data to external equipment through an inter-board communication pin, and configures parameters of the signal conditioning acquisition module and the analog filter module based on an instruction issued by the external equipment; the power supply pin is connected with electric energy, and the power supply management module supplies power to each module. The module has the characteristics of high integration, adjustable parameters and interference resistance, and is directly welded to a user development board through a stamp hole pin process, so that standardized rapid integration is realized, and the development cycle of 12-lead electrocardiosignal acquisition equipment in different scenes is shortened.

In some embodiments, an electric vehicle (EV) comprises energy storage; a device to receive power to charge the energy storage and to send power from the energy storage to an electrical power grid, where the device includes an inverter to convert DC power from the energy storage to AC power to be sent into the electrical power grid; on-board communication hardware; and one or more processors to send and receive communications, using the communication hardware and according to interoperability requirements of the electric utility company, related to discharging power from the energy storage to the electrical power grid.

The invention discloses an unmanned vehicle tire pressure adjusting device, method and system and a vehicle. The device comprises an environment sensing unit, a vehicle state monitoring unit, a tire air pressure control unit, a vehicle communication unit and a central processing unit, wherein the environment sensing unit is suitable for collecting vehicle surrounding environment and front road surface feature information; the vehicle state monitoring unit is suitable for monitoring vehicle driving and tire working states; the tire air pressure control unit is suitable for monitoring and adjusting tire air pressure; a data security processing unit and a self-learning optimization unit; and the vehicle communication unit comprises a vehicle-mounted communication module and a data processing module, and interacts with the cloud server pavement database. The central processing unit integrates information through data fusion, road surface recognition, friction coefficient estimation, tire pressure optimization and the control execution module, calculates the optimal tire pressure, and regulates and controls the optimal tire pressure; and the central processing unit gathers and receives information from each unit. Systematic operation from data acquisition to decision execution is realized, so that tire pressure adjustment can be matched with actual driving working conditions.

A train interior monitoring system (40) comprises an on-board video storage unit (12) that stores, as image information, video data and parameter information, the video data being obtained by capturing an interior of a train (10a, 10b) using a monitoring camera (11); an on-board control unit (14) that controls operations of devices installed on or connected to the train.are installed in the trains (10a, 10b); an on-board display unit (15) that provides a display under control of the on-board control unit (14); an on-board communication unit (13) that, under control of the on-board control unit (14), transmits the image information stored in the on-board video storage unit (12) when the corresponding one of the trains (10a, 10b) is in a stopped state; and a video analysis server (33) that determines whether there is an abandoned article in each of the trains (10a, 10b) using the image information, and that, when the video analysis server detects the presence of an abandoned article, generates an article abandoned notification indicating that there is an abandoned article. The on-board display unit (15) displays contents of the article abandoned notification under control of an on-board control unit (14).

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.

On-board communication system in which a plurality of communication devices (30, 130, 330) installed in a vehicle (1) are connected to one another via a common communication line (2, 3), comprising: a determination unit (21) configured to determine whether a message sent on the communication line (2, 3) is an authorized message or not; a discarding unit (22) configured to perform processing for discarding each message determined by the determining unit (21) as not being an authorized message before the transmission of the message is completed; a storage unit (33) configured to store identification information of each message discarded by the discarding unit (22); and a reception completion notification unit (23) configured to output, when a message having the same identification information as that stored in the storage unit (33) is received, to the communication line (2, 3) a signal indicating that the reception of the message is completed, regardless of a determination result of the determination unit (21), wherein the communication devices (30, 130, 330) each have a prohibition unit configured to prohibit processing based on each message having the same identification information as that stored in the storage unit (33), and the discarding unit (22) does not discard messages having the same identification information as that stored in the storage unit (33).

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 invention relates to an artificial intelligence-based air-based wireless gateway device, which comprises a gateway shell, an opening is reserved in the gateway shell to fix a lens of an ultra-high-definition image acquisition unit, and an image transmission line and a power supply line of the ultra-high-definition image acquisition unit are connected with an artificial intelligence processing unit through an MIPI interface; the artificial intelligence processing unit is connected with the ad-hoc network communication unit through the inter-board connector, and the artificial intelligence processing unit and the ad-hoc network communication unit are provided with fixing hole sites which are used for being fixed in the gateway shell; the ultra-high-definition image acquisition unit is used for acquiring a target image; the artificial intelligence processing unit is used for inputting the target image into a yolov5AI algorithm model to obtain a target result, and performing path tracking on the target result and individual cooperative control of an aircraft cluster; and the ad hoc network communication unit is used for carrying out inter-board communication with the artificial intelligence processing unit.

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.

1. The name of this design product: intelligent protection board communication handle. 2. Purpose of this design product: used for remote data monitoring on the battery protection board. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

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.

The invention discloses a control circuit of a shared infusion controller management cabinet, which comprises a main control circuit board and a detection control board, the main control circuit board comprises a main board MCU circuit, a touch screen driving circuit, an LCD screen driving circuit and a main board communication circuit, and the detection control board comprises a detection board MCU circuit, a detection circuit, an execution circuit and a detection board communication circuit. The communication end of the mainboard communication circuit is connected with the communication end of the detection board communication circuit. The touch screen driving circuit is matched with the LCD screen driving circuit, a man-machine interaction interface is provided for medical staff or patients, operation and information checking are facilitated, the detection circuit can detect the charging state of each infusion controller in real time, and the execution circuit can control a storage bin door lock used for storing the infusion controllers. Data transmission and instruction interaction between the main control circuit board and the detection control board are achieved through the main board communication circuit and the detection board communication circuit, unified and centralized management of a plurality of infusion controllers is achieved, and therefore the workload of nurses is relieved.

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.

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 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.

The invention discloses a voice communication server side, a vehicle-mounted communication terminal, an automobile voice communication system and a vehicle, the vehicle-mounted communication terminal can realize information interaction between the vehicle and the voice communication server side, and the voice communication server side can perform information interaction with the vehicle-mounted communication terminals installed on different vehicles. The information interaction process does not need to depend on the understanding relation between different automobiles, that is, information interaction can be established even if drivers of different automobiles are unfamiliar, so that information related to driving and the like is effectively transmitted, the traffic safety is guaranteed, and the traffic operation efficiency is improved; the voice communication server performs conversion processing on the first voice information to obtain the first conversion information, and sends the first conversion information to the second vehicle, so that the privacy security of the first vehicle can be effectively protected. The invention is widely applied to the technical field of automobiles.

The application belongs to the field of communication, and provides a communication method, a board card, an energy storage valve control system and a storage medium. The method comprises the following steps: a first process is used to open a source port corresponding to the first process, a first communication channel identifier is obtained, and first data is written into a first shared space according to the first communication channel identifier; an inter-board communication agent is used to open a destination port corresponding to the inter-board communication agent, the first communication channel identifier is obtained, and the first data is read from the first shared space according to the first communication channel identifier; the inter-board communication agent is used to write a port number of the destination port corresponding to the inter-board communication agent into the first data, and first target data is generated; the inter-board communication agent is used to send the first target data to a driver layer; and the driver layer is used to drive at least one physical communication interface of the board card to send the first target data to a physical communication interface of at least one other board card. The inter-board communication mode provided by the application is transparent to users, and has good portability, expandability and flexibility.

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 present invention discloses a communication detection method and system for an LED display HUB board, which relates to the technical field of communication detection. The method includes collecting a first communication signal of a serial communication interface on the HUB board and generating first feature data by matching preset signal feature parameters; collecting a second communication signal sent by a controller received by the HUB board and extracting second feature data according to the second communication signal; performing difference analysis on the first feature data and the second feature data to obtain a comprehensive difference index, and forming an abnormal identifier when the comprehensive difference index exceeds an adaptive threshold; displaying a corresponding fault type code on an indicator light set on the HUB board based on the abnormal identifier, and transmitting the fault type code back to the controller through a spare communication port of the HUB board. The present invention can effectively identify the abnormal signal type and severity through adaptive decision-making and hierarchical classification, and visually display it in the form of a fault type code, improving the real-time performance and reliability of communication fault detection.

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.