電機狀態監測系統傳感器種類多、通信線路復雜以及實時性、可靠性等問題。本文提
出了基于CAN 總線的大型電機三軸磁場實時監測系統及其架構設計，基于MSP430 單片機設計與實現了三軸磁傳感器、CAN 節點模塊，并對CAN 總線上層傳輸協議進行初步編制和使用。通過構建的最小CAN 總線系統，驗證了基于CAN 總線的三軸磁場數據傳輸及部分通信協議的可行性、實時性和可靠性。
關鍵詞：CAN 總線；三軸磁；電機監測系統；模塊化；
Abstract : A great deal of various decentralize sensors are used in electrical machine state
monitoring system. In this paper, a real-time three-axes magnetic monitoring system of electrical machine is designed reasonably based on CAN. The three-axes magnetic sensor is designed and debuged, the node of sensor network is modularization designed, and the protocols of CAN’s transport layer is principly programmed. A smallest CAN system is constructed, which validated that the system based on CAN is feasible, real-time, effectively, and very dependable.
Key words: Controller Area Network; Three-axes Magnetic Sensor; Electrical Machine
Monitoring System; Modularization