Development and Evaluation of Safety-Aware Over-the-Air (OTA) Updates in the Factory Planning Laboratory
|26. July 2021
|Safety Aware OTA Updates for Smart Factories
|Development and Evaluation of Safety-Aware Over-the-Air (OTA) Updates in the Factory Planning Laboratory
|Technologies such as Industry 4.0, IoT and smart factories have enabled the research that helps to optimise the production process flexibly. Smart, adaptable manufacturing systems is one such technique that includes operating and updating smart systems Over-the-Air dynamically. There is much ongoing research to make the Over-the-Air updates secure, but often not paying much attention to the system’s safety.
Safety-critical systems are the systems where a minor malfunction can cause loss of life, infrastructure damage, and damage to the environment. Updating such systems involves many challenges. This study addresses some of such problems using Safety 4.0 principles. Safety-aware Over-the-Air updates are one solution to such problems.
This thesis initially assumes the microcontroller node in a safety-critical system where an update of the new firmware is required. Make safety rules and include the safety parameter checks while updating the new firmware. Compared to regular updates, the time overhead caused is calculated.
In order to achieve this goal, SUIT Over-the-Air update infrastructure design is modified to accommodate safety parameter rules. To test the modified infrastructure, three safety rules along with two different embedments are defined and implemented. These implementations are tested on an experimental setup with a Nucleo-F767ZI microcontroller unit running on RIOT-OS attached to BME280, MQ3, and INA3211 sensors.
Later changeable manufacturing systems with three layouts is implemented by deploying material handling firmware into the nodes using safety-aware OTA updates in Industry 4.0 learning factory.