关键词: 无线升级, 批量升级, 物联网

Abstract: The batch upgrade of wireless device software for the internet of things has the problems of slow speed and low success rate of one-time upgrade. Each wireless device analyzes and processes the broadcast data, generates a data chain table, and responds to the upgrade data with directional information according to the data chain table. The broadcast of the upgraded data can achieve directional coverage. The experimental results show that the upgrade speed of the software upgrade method that combines point-to-point and broadcast is about 60 times faster than the traditional point-to-point method, and one-time upgrade success rate is 100%. This method provides a fast and reliable upgrade method for internet of things devices to upgrade software programs in batch.

Key words: wireless upgrade, batch upgrade, internet of things