Fast and Intermittent Embedded Software Management Based on Dynamic Partial Update Techniques via IR for Intelligent AI-Driven Systems
Janghun Lee, Daejin Park · 2024
Recently, over-the-air (OTA) update technology has been used in various fields, such as automobiles and the Internet of Things (IoT). Because OTA update technology can update software or firmware inside a device wirelessly, it does not require a physical port and is convenient. However, OTA technology has several challenges to solve. First, as wireless software updates become possible, it may necessary to replace functions while the software is running. A technology to replace programs during runtime is needed. Second, software updates are difficult when communication is not smooth. Intermittent software update technology is needed. Third, updating a large piece of software at once requires a lot of time, energy, and memory. This can be solved by dividing large software into several parts and applying partial software updates. Fourth, the software being updated can be eavesdropped on. This can be solved in special cases using infrared technology. In this study, we propose an OTA update file transmission and reception protocol for software that uses dynamic libraries with explicit linking. This protocol enables the integration of runtime software update, intermittent software update, partial software update, and security software update.