Lonworks Network-based Fire Emergency Escape System Software

LonWorks technical platform has been developed by Echelon corporation since the 1990s. Now it becomes the general standard of the control network. LonWorks network can monitor the sensors, carry out the reliable communication management and network operation by using LonTalk protocol. LonWorks network mode can help the manufacture cut cost, reduce developing period as well as increase mutual-operational capability.In this system we make some modifications on the LonWorks network mode to suit to the actuality of the buildings intelligentized control system in China. The system uses three hierarchical network to connect all the equipments instead of the simplex LonWorks network. We use the RS-485 serial communication mechanism at the bottom of the system, while the CAN bus in the middle and the LonWorks network mode was only used on the top of the system.By using the new network structure the system can carry out the functions as below: The system monitor and maintenance the fire protection equipment regularly or irregularly in the usual time, whereas as the fire alarming, the system would unfold the scaling ladder, turn on the lamp and help the people in danger evacuate.