Study Of Fire Alarm And Fire Linkage System Fieldbus Technology

The communication bus protocols of defferent factory's fire alarm and control systems are defferent from the beginning, and even the protocols of the same factory's products for defferent stages are not uniform completely. So we wish to design a set of standard field bus protocols for fire alarm and control system by this research : based on the defferent factory's and defferent stage's bus technology, the new protocol should be not only self_contained, but also developmental.According to the industry field bus technology, this paper has built three layer model for the bus of fire alarm and control system, and has described each layer. After describing, this paper has also realized the protocol functions respectively at central controller and field unit. In the field unit the core is Singlechip, and in the central controller is Programmable Logic Device.Today this reaserch has already been applied in KX21 distributing intelligent fire alarm and control system..