Subarea control system of electrical lighting separated by a demarcation repeater

摘要

A subarea control system of electrical lighting separated by a demarcation repeater 6 comprises: a bus power supply 5 connected to the electric supply 1; at least a demarcation repeater 6 connected to the bus power supply 5 via a bi-phase digital information transmission bus 2 to establish a contact with the uplink bus, while the demarcation repeater 6 need to be connected to the electric supply 1; a system controller 7 connected to the bi-phase digital information transmission bus 2 to form a transmission path 9 so as to broadcast the system instructions within the whole system; at least a subarea controller 8 connected to the bi-phase digital information transmission bus 2; at least a group of lamp controllers 3 respectively connected to the bi-phase digital information transmission bus 2 to receive the information instructions and to access the electric supply 1; the subarea controller 8 and the lamp controllers 3 form a subarea instruction transmission path 10 whose boundary is the demarcation repeater 6, and the subarea instructions are valid on the subarea instruction transmission path 10.