Abstract

The article describes in detail intelligent bus measurement and control system (IBS) which are based on CAN bus, Modbus communications protocols and Transducer Electronic Datasheet (TEDS). Measurement and control system are constituted by the host computer, nodes, and the bus. The host computer is the master node of the measurement and control system, realizing the control of salve node, the display of measurement results as well as interaction with the user. The slave node consists of the signal processing unit, the TEDS information storage unit, communication unit and an AVR microcontroller, for the measurement of physical variables, actuator control and data interaction. The system has been successfully applied to large-tumor magnetic induction therapy equipment, which is very stable and reliable.

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