Wearable Mobile Maintenance Support Terminal Hardware Platform Design

The modern equipment maintenance, especially the large high-tech equipment suchas airplanes, usually needs complex process and higher skills. The existing repairauxiliary equipment is difficult to improve the repair efficiency and guarantee the repairquality. The wearable technology has a unique model of human-computer interaction.When combined with the repair auxiliary equipment, the wearable technology canrelease the sight and hands of maintenance worker. So the maintenance worker canfocus on the task and improve the operating efficiency.In this paper, the hardware platform of wearable auxiliary maintenance terminal isdesigned. This project comes from the national major project "Civil Aircraft XXXTechnology Research”. The wearable repair auxiliary terminal centers on maintenancetask, and aims to improve efficiency. In the design of the wearable repair auxiliaryterminal, the particularity of the industry environment is taken into consideration.Machine configuration is weakened by the natural human-computer interaction and thehuman-computer interaction is promoted to the level of man-machine integration. Themain research and design work can be summarized as follow.1. The structure of wearable maintenance system is discussed. Through thewireless communication connection, the operation mode of foreground and backgroundis established. The foreground which located at work site is consisted of maintenanceworker and wearable maintenance auxiliary terminal. The background is consisted ofthe local server and remote server, which provide the service of interactive electronictechnical manual queries and expert technical guidance.2. The design of wearable mobile repair auxiliary terminal hardware platform isaccomplished, including the technology demonstration program, unit circuit and circuitdesign, six layer circuit board PCB design, the prototype preproduction. The signalintegrity of circuit is analyzed. The human-computer interaction model is discussed. Atthe same time, the wearable system integration is also designed.3. VGA video circuit aiming at monocular head mount display is designed andVGA video device drive programs are transplanted. Directing to the low power consumption of wearable systems, the low-power design is conducted from hardwareand software respectively. The repair auxiliary terminal service time is prolonged. Thegesture sensing circuit and detection program is designed.4. Debug and test the completed prototype. The equipment temperature and powerconsumption as well as system function are tested. The application programs such as thetechnical manual browsing, audio technology support and image acquisition can runnormally on the hardware platform. The testing results show that the design meets therequirements.