Abstract:In order to address the problems of the traditional fan control system architecture of extra long highway tunnel, such as poor ventilation timeliness and reliability, and failure to realize fan collaborative control, and to meet the ventilation operation requirements of complex fan network of tunnels, a collaborative control system of complex fan network of extra long highway tunnel based on cyber physical system (CPS) was designed. The system architecture consists of five levels: the sensing layer, the information layer, the application access layer, the application layer, and the CPS layer. The sensory layer uses the method of fan cluster division, and uses the embedded computing transmission unit to realize the perception and local control of the tunnel environment, traffic volume and other factors; the information layer controls the event/information priority of the fan and the data based on the publish/subscribe method. The distribution service improves the reliability of data transmission and the timeliness of fan control; the CPS layer proposes a fan control method based on the space-time model to realize the coordinated control of complex fans network. The system architecture enhances intelligent and informative level of fan control of extra long highway tunnels to meet the service-oriented tunnel operation requirements.