3results about How to "Reduce data load" patented technology

The invention discloses a 2.4 G-based RSSI (Received Signal Strength Indicator) positioning data relay transmission device and method, and belongs to the technical field of wireless communication. The device comprises a positioning label, a positioning gateway, a relay gateway and a public network gateway. The positioning tag broadcasts a 2.4 G signal containing the ID of the positioning tag; the positioning gateway scans the 2.4 G signal, and generates and broadcasts a data packet in which a positioning gateway address, a data packet number, a relay level and aggregated data are packaged; a relay gateway is switched to a low-power-consumption mode after initialization through a monitoring-learning-synchronization mechanism, wakes up and receives data in a broadcast time window of an upstream gateway of the relay gateway, updates a relay level and forwards the data to a downstream gateway, and therefore multi-hop relay transmission of the data is achieved. And the public network gateway finally uploads the data to a cloud platform or an upper computer. According to the invention, through data aggregation and time synchronization dormancy, the system power consumption is greatly reduced, and long-distance and long-endurance positioning data transmission of battery power supply in a complex environment is realized.

This invention discloses a charging station information processing method, display method, device, system, and storage medium. The method includes: acquiring an initial map containing charging station information; generating a polygonal grid for the initial map, wherein each polygonal grid contains charging station information for at least one charging station; filtering the charging station information in the polygonal grid based on the correlation between preset point positions and the positions of charging stations in the polygonal grid to generate display data for each polygonal grid; and sending the display data to a vehicle-mounted system for generating a charging station display layer when the vehicle-mounted system displays the map. The technical solution of this invention minimizes data loading and reduces the performance consumption of the vehicle-mounted system while ensuring a good user experience.

This invention discloses a method for distinguishing and marking multiple foreground objects in image data streams. The steps include: 1) connecting a camera to an FPGA, whereby the camera transmits the acquired fiber optic unit array image to the FPGA line-by-line in real-time in a streaming manner; 2) the FPGA detects the received image pixels, identifies and marks the light spot pixels; 3) the FPGA calculates the optical centroid coordinates of the corresponding light spot pixels based on the marked light spot pixels. This invention can process the image data stream in real-time at the image acquisition end, distinguishing and marking each fiber optic light spot pixel. This allows for real-time calculation of the light spot centroid at the image acquisition end while maintaining accuracy, thereby greatly reducing data transmission volume and enabling the host computer to obtain the optical centroid coordinates of the fiber optic unit in real-time. This provides an accurate and real-time labeled image data stream for subsequent optical centroid calculation, thus improving overall positioning efficiency.