Abstract
In order to improve the work performance and mobility of the fault diagnosis expert system, a portable diagnostic client for embedded Linux operating system is developed. The data acquisition module is embedded in the device by analyzing fault-tree based troubleshooting process, using the fault symptom table for fault diagnosis. Maintenance staff determine whether the equipment is working properly in accordance with the output signal of the diagnostic Agent which is embedded in weapons equipment, and infer equipment fault information by diagnosis clients, then locate the fault source quickly. Embedded fault diagnosis expert system integrates the data acquisition functions and reasoning capabilities of the knowledge base effectively, thus allowing the maintenance staff to diagnose and repair the equipment quickly and efficiently.