Bluetooth channel sounding combines TOF technology, PBR technology, and RTT technology. Distance measurement is based on point-to-point. To achieve point-to-multipoint, handleover technology is used, that is, after the mobile phone connects to the first vehicle-side device, it passes the connection information to another anchor point, and the handshake packet and data interaction that maintain the connection are completed by the current anchor point until all anchor points have completed the interaction. The mobile phone end is not aware of this process, thereby achieving the purpose of point-to-multipoint distance measurement, thereby realizing the device positioning function.

Traditional BMS mostly uses wired connection, which has problems such as complex wiring, high cost, and difficult maintenance. With the maturity and popularization of Bluetooth technology, its low power consumption, high reliability, and easy deployment have provided new ideas for the wirelessization of BMS. Realizing wireless communication between BMS and other systems (handheld terminals, central control units, etc.) through Bluetooth technology can significantly optimize the system structure and improve overall performance.

At the exhibition site, the booth of Shengrun Technology became one of the highlights. The company made its debut with its newly developed IoT communication solutions and star products, fully demonstrating its deep accumulation and strong strength in the fields of wireless communications, intelligent hardware and system integration. From wireless communication modules such as low-power Bluetooth (BLE), Zigbee, Wi-Fi 6 to ultra-wideband (UWB),

This solution integrates low-power Bluetooth modules into power tools to achieve wireless connection between each tool and smartphones or other smart terminals, thereby realizing remote monitoring, parameter adjustment, asset management and battery management functions. The use of low-power Bluetooth technology ensures that the Bluetooth module can operate stably for a long time and extend the service life of the tool. This solution can not only improve work efficiency, but also enhance the user experience, bringing a new intelligent change to the power tool industry.

This solution uses zigbee3.0 as the communication protocol of the solution. The hardware uses HY-2340 series modules. Terminal devices are deployed on street lamp poles and the data is uploaded to the cloud through the router coordinator. Environmental status can also be collected through sensors and then used by Zigbee. The terminal device is transmitted to the cloud, and then the status of each component can be controlled and set through the background. This includes adjusting light brightness according to environmental factors, playing different advertisements according to different times and environments, etc.