The Method of Embedded Device Firmware Update Under Multi-layer Heterogeneous Network

In the coal mine, there are many network topologies and complex links. How to directly update the embedded device firmware from the ground control room, which is a difficult problem in engineering maintenance. Therefore, this paper proposes an open-end firmware update method for embedded devices that supports multiple layers and is not limited. The method mainly includes a bootloader, a probe program, and a device route description. A large number of tests show that the method is stable and reliable, and greatly reduces the workload of engineering maintenance.