Design of pH Monitor Instrument Based on CAN Bus
SHI Lei1,2 (1.College of Information Science and Engineering,Bohai University,Jinzhou 121000,China;2.College of Information Science and Technology,Dalian Maritime University,Dalian 116026,China) Abstract:The design of pH monitor instrument is introduce based on CAN bus, it intudied the approach that insets CAN bus to intelligent instrument. It introduces the hardware design of processor by the way of AT89C55, CAN controller SJA1000. According to CAN protocol,the design of communication module is discussed in detail. The software has realized that PC computers manage and control the instruments using the CAN communication module. It is proved that the functions of error-delaying and data-switching and system-managing and anti-jamming are better than traditional instruments. Key words:CAN bus; CAN bus controller; pH monitor instrument |