3results about How to "Avoid communication conflicts" patented technology

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.

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.