8results about How to "Avoid communication conflicts" patented technology

The invention provides a container-based ECU flashing method, device and equipment and a storage medium, applied to an upper computer, the upper computer communicates with multiple ECUs of the same model through a virtual local area network interface, at least one ECU is configured in each vehicle, and the method comprises the following steps: receiving a control instruction for flashing multiple ECUs, the control instruction at least comprises a target number of to-be-flashed ECUs and a path of an upgrade file; packaging the preset flashing program into a container mirror image, and creating a target number of containers according to the container mirror image and the control instruction; the preset flashing program in each container is run, the upgrading file is transmitted to each ECU through each communication link so as to complete flashing of each ECU, and the communication links are constructed between the containers and the ECUs based on the virtual local area network interfaces in a one-to-one correspondence mode. Therefore, the ECU batch flashing process is simplified, the flashing efficiency is high, additional physical network equipment does not need to be added, and the cost is reduced.

The utility model relates to the technical field of servers, in particular to a server communication device, which comprises a PCIe (Peripheral Component Interconnect Express) standard card connected with a mainboard through an adapter card; the PCIe standard card is connected with the USB connector through the USB converter; the USB converter is also connected with the NB-IoT module; the PCIe standard card comprises a field replaceable unit and a temperature sensor, and the field replaceable unit and the temperature sensor are connected with the BMC on the mainboard through a low-rate communication bus; and the PCIe standard card is connected with the I2C expansion board card. According to the utility model, the cable space is saved for the server cabinet, the communication mode is increased, and the remote supervision convenience of the server is improved.

This invention provides an ECU reset detection method, device, electronic device, and storage medium, belonging to the field of electronic testing technology. The method includes: calculating the estimated theoretical reset time using a weighted algorithm on the ECU's characteristic parameters; determining the ECU's reset response timeout threshold and segmented waiting interval based on the theoretical timeout; sending a progress query command to the ECU to query the current reset stage according to the segmented waiting interval, and obtaining the current reset stage code fed back by the ECU within the reset response timeout threshold; determining the weight corresponding to the current reset stage code; and determining the reset progress and remaining reset time based on the theoretical timeout, the weight corresponding to the current reset stage code, and the time already elapsed in the current reset stage. This invention can solve the problems of existing unified diagnostic services, such as the tendency to trigger misjudgments due to rigid timing decisions, the inability to accurately perceive reset progress, and the potential for bus communication conflicts during multi-ECU collaboration.

The invention discloses a wireless communication method and device for a photovoltaic grid-connected circuit breaker, a medium and a product, and the method comprises the steps: triggering the execution of reconfiguration of working parameters of a built-in wireless communication module through a channel parameter reconfiguration instruction, and configuring an inverter data collection mode for the built-in wireless communication module; sending a wireless connection request to the photovoltaic interface converter, and requesting to establish a wireless connection link with the photovoltaic interface converter through the module; when a connection link is established, scheduling an acquisition mode in a preset resource reuse mode to acquire first operation data of the photovoltaic inverter in a first time slot, and after the first operation data is stored in a local cache region, recovering the module to a transformer area communication mode; and when a data request instruction of a transformer area terminal is received by the module, target operation data is extracted from the cache region, and is sent to the transformer area terminal in a second time slot by using a transformer area communication mode. According to the invention, the flexibility of establishing the communication link between the indoor photovoltaic inverter and the outdoor power grid terminal in a stock building scene is improved.

The present invention relates to a method for scheduling the work of a rechargeable wireless sensor network node based on information freshness. The method belongs to the field of wireless communication technology. A wireless sensor network model is established in which each node in the network is equipped with a single limited capacity rechargeable battery, and the relationship between the remaining battery energy and the average information age of the network is theoretically analyzed using the random hybrid system method. Based on the analysis results of this theory, a full charging strategy that can obtain a smaller average network information age is proposed; then, in view of the problem that the charging speed of the node battery is a finite value, a wireless sensor network model in which the node is equipped with dual limited capacity rechargeable batteries is proposed, and the average information age optimization problem of the network is established. The Lyapunov drift plus penalty method is used to simplify the optimization problem, and a node scheduling algorithm based on information freshness is proposed. The present invention can effectively reduce the average information age of the system, improve the real-time performance of receiving information, and has practical application value.

The present invention discloses an RFID multi-tag identification optimization method and system, the method includes data collection, data serialization, time series feature prediction, collision avoidance and real-time feedback and adjustment. The present invention belongs to the field of wireless radio frequency identification technology, specifically refers to an RFID multi-tag identification optimization method and system, the scheme constructs a GRU network to identify the nonlinear relationship between time series data, predicts the type of tags output in the future time series and their response probability, dynamically adapts to the length of the input sequence, has fast operating efficiency, high real-time performance, and improves the flexibility of multi-tag identification; the collision avoidance strategy is designed to effectively reduce the collision probability, and by dynamically selecting the time slot division strategy and the binary tree strategy, the system can more effectively utilize the communication time and spectrum resources, and more accurately locate the tags, avoid unnecessary queries and communication conflicts, and help the system maintain good performance under different working conditions.

Embodiments of the present specification provide a device control method, device and computing device, wherein the device control method is applied to a first device in a rail transit system, and the method comprises: determining a second device associated with the first device; obtaining first space-time information of the first device, second space-time information of the second device, and a connection relationship between the first device and the second device; constructing first group information of the first device according to the first device, the second device, the first space-time information, the second space-time information and the connection relationship, wherein the first group information is used to store a structural relationship between the first device and the second device in a token ring network, and group information of each device in the rail transit system is used to store a token ring network of the constructed rail transit system; and communicating with the second device through token scheduling based on the first group information. The token ring network of the rail transit system is constructed, communication between different devices is realized, and efficient, conflict-free communication and collaborative control are realized.

The present invention provides a communication method, a carrier proxy module and a station fusion terminal, the method comprising: receiving forwarding requests sent by multiple carrier service applications; storing the data to be sent sent by each carrier service application in a queue to be sent; and sending the data to be sent in the queue to be sent to a carrier communication device one by one according to the order of forwarding priority. In this scheme, when forwarding requests sent by multiple carrier service applications are received, the data to be sent sent by each carrier service application is stored in the queue to be sent. The data to be sent in the queue to be sent is sent to the carrier communication device one by one according to the order of forwarding priority, so as to avoid communication conflicts between multiple carrier service applications and the carrier communication device and improve the stability of communication.