OTA upgrade design for new generation of domestic safe and controllable protection measurement and control devices

Abstract In order to meet the increasing demand for high reliability and high security of power systems, this paper proposes an OTA online upgrade design program for a new generation of home-made safety and controllable protection measurement and control devices. The program includes the upgrade package’s composition, the upgrade file’s credible verification, and the online upgrade process. The design realizes remote upgrade of device software through a wireless network, which not only improves the upgrade efficiency but also ensures the safety and reliability of the upgrade process through a series of security measures. This paper describes in detail the composition of the upgrade package, the credible verification method of the upgrade file, and the online upgrade process, which provides effective technical support for the remote operation and maintenance of protection measurement and control devices.