Regional loop controller in intelligent road lighting system
A lighting system and intelligent road technology, applied in the direction of energy-saving lighting, energy-saving control technology, lighting devices, etc., can solve the problem of increasing the unsafe factors of the lighting system, and achieve the effect of reducing energy consumption and efficient lighting
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[0032] Embodiment 1: as figure 1 As shown, the regional loop controller 15 of the present invention, the PC 14 and the field node controller 16 constitute a perception-based intelligent road lighting energy-saving control system. The communication between the monitoring center of the PC 14 and the regional loop controller 15 can adopt a wired RS232 bus, or a wireless GSM / GPRS, and a self-defined protocol is adopted between the PC 14 and the regional loop controller. The regional loop controller 15 communicates with a plurality of field node controllers 16 through RS485 bus, and the communication protocol complies with the MODBUS communication protocol.
[0033] The MODBUS communication between the regional loop controller 15 and the field control nodes is initiated by the regional loop controller, and is divided into two types: MODBUS query and adjustment.
[0034] The MODBUS query frame format of the regional loop controller consists of access node number, function code, sta...
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