Abstract
The design of the distributed data acquisition system is based on CAN Field Bus. It's used to realize the change's measure of the dam-pressure. The whole system includes two parts, data acquisition system and CAN Bus communication. System uses CAN Bus to transmit data. It ensures the reliability of system. This paper introduces design of the whole system, and expatiates the design's method of system hardware and software. The main point of this paper is the data acquisition of hardware circuitry and design of CAN Bus' interface. System can not only be used to measure the pressure of dam, but also be used for other measure of industry field and control field.
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