Robust Reconstruction of QR-Embedded Software using CRC-based Sequence Extraction of Asynchronous Time-Multiplexed QR Code
Myeongjin Kang, Daejin Park · 2021
Recently, systems in which smart factories, smart cars, and several small edges work together are emerging. Error problems occur in software execution as often as small edges work together, which spreads to errors of the entire system or causes larger errors. In order to solve this problem, it is necessary to consider a communication method for determining the presence or absence of an edge error using power consumption data. In this paper, we try to segment data and communicate using QR codes. For the divided data part, the order is restored using Check Redundancy Check (CRC). If the order can be restored, data can be transmitted asynchronously. This architecture was implemented using ‘CW303’, ‘Chip-whisperer’ and ‘Raspberry Pi 3’ and showed successful data communication and error judgment.