Design of fault diagnosis system for 3D Laser Scanning Machine based on internet

According to the weakness of 3D Laser Scanning Machine in fault diagnosis, a new design approach for fault diagnosis has been developed. The new system consists of three layers, including the local fault diagnosis, fault service centre and multi-user cooperative diagnosis. The local fault diagnosis system, which is embedded in the existing CNC system, offers on-line, off-line diagnosis, fault compensation and remote communication services. With the support of the fault diagnosis database, the local fault diagnosis system chooses two agents that supply the user with a different view on problem as its intelligent analyzer to retrieve the optimal checkpoints. In addition, it builds the local fault diagnosis engine as a web service to facilitate users to share their diagnosis resource with others. The fault service center, which is supported by the customer service database, is designed to offer advanced suggestions to customers when their local fault diagnosis system fails to remove the malfunctions independently. It mainly provides four functions including fault diagnosis BBS, web-based retrieval, customer register and remote communication. It also adopts two agents to deal with web-based retrieval. The remote communication module supported by Audio/Video guide makes remote diagnosis effective. In order to acquire all of the users’ diagnosis resource, the customer register module registers all users’ web services in the registry; therefore the fault service center could bind and execute the customers’ web services when they are confused by a certain difficult problem. Finally, the key techniques for the system building are introduced, and the feasibility of the system is also testified.