Research on Data Standardization of Airborne Embedded Equipment Based on IPMI

The PHM of embedded equipment is a major component of aircraft design, in which conscious efforts are made to shift aircraft maintenance from unplanned and reactive methods during failures to more proactive and predictive methods. It involves data processing, including capturing data related to aircraft components, monitoring parameters, evaluating current or future health conditions, and providing recommended maintenance measures. Multiple sensors, processing units, and software are required to perform data processing functions. To meet the consistent management requirements of airborne embedded equipment composed of components from different suppliers, a universal data specification for airborne embedded equipment based on the IPMI standard protocol is proposed to meet the interoperability of health management data between different suppliers. Relying on the Intelligent Platform Management Controller (IPMC) to obtain voltage, current, temperature, and state discrete data of the substrate, and comparing the data with the set values of the Sensor Data Record (SDR), generate event information in standard data format and send it to the Chassis Management Controller (CHMC) through the Intelligent Platform Management Bus (IPMB), where CHMC obtains the event information of the IPMC, Filter events and store the System Event Logs (SEL) in standard data format, while responding based on diagnostic results. Through the instantiation verification of typical embedded equipment, the integrity and effectiveness of the airborne embedded equipment data specification and hardware PHM function designed in this article are verified. After verification, this article provides a robust framework that allows each implementer to add their own enhanced functions without affecting interoperability, meeting data compatibility among multiple embedded equipment suppliers, especially addressing interoperability and enterprise system integration.