EDM is the abbreviation of engine data management, which refers to the engine data management system. It can collect, process and display the data parameters of the engine, including the altitude, speed, temperature, pressure, fuel consumption, oil temperature and oil pressure of the aircraft in flight, so as to ensure the reliable operation of the engine. At the same time, EDM can also help the crew carry out flight planning and fuel management, improve flight efficiency and reduce fuel waste.

The main components of EDM system are computer, data collector, sensor and display. They collect engine data through digital signal processing technology and convert them into visual images and reports for display, which has very high accuracy and stability. In addition, the EDM system can automatically detect the abnormal state of the engine and give an alarm to the pilot when necessary to help the crew deal with it correctly.

EDM system has a wide range of applications, such as civil aviation, military, official business, rescue and other fields. At the same time, with the continuous progress of science and technology, EDM system is constantly improving and upgrading, and some equipment has also added artificial intelligence and big data technology to establish an intelligent engine management system. The application of these new technologies can not only improve the running efficiency and safety of the engine, but also lay a solid foundation for the automation, intelligence and digitalization of future flight.