Abstract
CAN bus is one kind of serial communication bus which support distributed control and real time control effectively. In this paper, an intelligent fire alarm system based on CAN fieldbus technology and multi-single-chip-computer communication system is introduced. CAN (controller area network ) is a fast serial bus that is designed to provide an efficient, reliable and economical link between fire detect sensors and fire control actuator, some intelligent algorithm or methods are adopted in the system to solve these problems, which miss alarm and error alarm are two difficult problems in the current fire alarm system. By use of the new technology of CAN fieldbus and single-chip-computer technology, Hardware circuit and software design for intelligent node SJA1000 based on CAN and fire detector are given. The designs of structure for network, parameter assignments for network and communication protocols are described in detail.
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