The system adopts power carrier communication technology to realize single-lamp energy-saving and centralized control and monitoring of lighting street lamps, and has line anti-theft function. Through advanced scientific and technological means, the scientific management of street lamp facilities and on-demand lighting are effectively guaranteed.
First, the system composition diagram
Second, the system features
1. Perfect functions: “four remote†function, single lamp monitoring and energy saving function, outdoor weather function, cable anti-theft function, automatic meter reading function, dynamic electronic map display function of monitoring center, and statistical analysis function of data.
"Four remote" function: remote control, telemetry, remote signaling, remote adjustment.
â—† Remote control function---control circuit or single lamp on or off;
â—† Telemetry function---Telemetry total voltage, current and voltage and current of each loop;
â—† Remote signal function---feed back the status of various switches;
â—† Remote adjustment function---Remote adjustment of single lamp current to achieve single lamp energy saving.
2. Single lamp control function: Utilize the company's advanced power line carrier communication technology to realize single lamp control, detection and energy saving.
3, outdoor meteorological function: monitoring the ambient temperature and humidity, illuminance, etc. of the area where the street light is located, as a basis for sudden changes in weather and accidents.
4, anti-theft alarm function: monitoring power cable, anti-theft alarm, no matter whether there is electricity, no electricity, you can monitor and alarm. At the same time, it can monitor the abnormal opening of the transformer door.
5, automatic meter reading function: timely grasp the power consumption, and the energy data meets the measurement requirements of the power sector.
6. Dynamic electronic map display of the monitoring center to master the lighting dynamics in time. The monitoring center also has a GPS timing function.
7. Data statistical analysis function: The system has a timing recording function, which forms a statistical report of historical switch light recording, failure rate, power consumption and so on.
Third, the system main equipment
Monitoring center server
The main control computer, installation system software, including CS main service program, SMS processing program, BS public network release program. The administrator logs in to the system to operate.
2. GPRS/CDMA Data Transmission Unit (DTU)
The GPRS/CDMA network is used to connect each intelligent control terminal to the monitoring center. Use the mobile network to notify the administrator of the system status via SMS or reverse query.
3. Centralized controller (collector RTU)
The centralized controller includes four parts: a power line carrier communication module, an ARM motherboard, an Ethernet module, and a power supply circuit. Rich external interface resources, with external 232 communication interface, 485 communication interface, USB HOST interface.
The central controller is the intermediate stage of the system, communicates with the monitoring center through GPRS, and communicates with the terminal controller through the power carrier grid downward. Power line carrier communication is based on the principle of BPSK, half-duplex communication, and the data transmission rate is 1200 bps. The central controller is set in units of transformers, and each transformer requires a central controller. The central controller is connected to the DTU and connected to the three-phase four-wire low-voltage network.
Main Specifications:
1) Work. Power supply: 85VAC-250VAC, 50Hz/60Hz
2) Operating temperature: -20oC -- +70oC
3) Relative humidity: 95%, no condensation
4) Power consumption: static 350mW, dynamic (communication instant): 10W
5) Electromagnetic compatibility: in accordance with IEC1000-4-2, 3, 4, 5 standards
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NINGBO ZIXING ELECTRONIC CO.,LTD. , https://www.zixingautobin.com