Abstract
This paper introduces CAN bus communication principle and different designing kinds of automobile hardware modules. The research and application of motormeter based on CAN bus technology has been put forward. It takes the micro-control unit (MCU) P87C591 as its core , the stepping motor and LCD as its hardware platform, so as to achieve the data received and send based on the CAN bus. The anti-jamming of this system is analyzed and designed because of the complexity working environment of the automotive. The information technology, control technology, as well as the CAN bus and vehicle safety monitoring technology are integrated in automobile instrument cluster. The system is designed to reflect real-time vehicle operating conditions by reading, processing and displaying the data from each sensor on the CAN bus.
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