Based on the highway-street lamp wireless intelligent monitoring system application case
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1. Case background
The Dongguan section of an expressway in Guangdong (the main road is about 41 kilometers, and the branch road is about 15 kilometers). The road environment is more complicated, with many bridges, tunnels, high-voltage wires, and highway intersections. It is difficult to maintain and manage street lights daily, and the cost is relatively high. high.
In response to the national call for energy conservation and emission reduction, the highway management office hopes to use intelligent systems to realize remote monitoring of all street lights in this section, real-time data collection, fault alarms, and statistical analysis of lighting rates without affecting the lighting effect. , To achieve the desired effect.
Two, the solution
Based on the above transformation requirements of the street lighting system, 2.4G wireless control technology with low cost, significant energy saving and flexible networking characteristics will be the key to this system transformation project. Guangzhou Hongyu Technology Co., Ltd. intends to adopt independent knowledge Proprietary wireless control technology to realize remote intelligent monitoring of highway street lights.
The solution is mainly composed of a wireless single-lamp controller, an on-site base station and a monitoring center. The wireless single-lamp controller is installed on each street lamp to connect with the power supply module and lamps. It can control street lamp switching, brightness adjustment, and collect current, voltage, switch status and other working status information. It is a device that directly manages all lamps. The site base station centrally manages 50 to 200 wireless single-lamp controller devices, and establishes a connection with the background server through GPRS. The monitoring center is composed of monitoring software and servers, and is equipped with a fixed external network IP address. Issue commands to the site base station through the management and control software to every street lamp in any monitoring network.
Figure 1: Schematic diagram of system structure
3. Equipment installation renderings
1. Wireless single light controller
Considering the complex highway environment, in order to ensure reliable data transmission, there are two installation methods for the wireless single-lamp controller: one is installed in the lamp, and the other is installed outside the lamp.
Figure 2: Installed in the luminaire
Figure 3: Installed outside the luminaire
2. On-site base station
In order to reach the longest distance of wireless transmission, the antenna needs to be installed vertically on the ground. Considering the lightning protection factor, a fixed steel plate is designed for installation and transfer. The site base station equipment is fixed on the fixed steel plate. The fixed steel plate is then tightened to the lamp pole to prevent the antenna from comparing The poles are high to effectively avoid lightning strikes.
Figure 4: The site base station is installed on the fixed steel plate of the light pole
3. Tunnel construction drawing
Figure 5: Construction drawing of the equipment installed in the tunnel
4. The main road renderings
Figure 6: Effect picture of equipment installed on the main road
5. Monitoring software diagram
Figure 7: The main interface of the background monitoring software
Fourth, the application effect
1. Improve the management level of highway street lights
Maintenance personnel can remotely control the on-off, dimming, real-time data collection, and understanding of faults on the highway through the monitoring software in the monitoring center.
2. Save more than 20% of electric energy
After the implementation of the control system, the original energy consumption can be reduced by 18-25%. At present, the ordinary lamps and lanterns are 250W, and the power consumption is 2.5 kWh for 10 hours per day. After the implementation, the energy saving is calculated at 20%. , It can save 0.5 kilowatt-hours per day, working 365 days a year, and each lamp can save 182.5 kilowatt-hours per year. If calculated by 4000 street lights on the expressway, the electricity consumption can be calculated at 0.6 yuan/kWh, which can create social benefits of 438,000 per year. Yuan.
3. Reduce maintenance costs
Through the system’s automatic light inspection and alarm functions, maintenance personnel can know the failure of street lights at the first time in the monitoring center, eliminating manual regular inspections, reducing personnel working time and vehicle losses, and reducing maintenance costs.
4. Parameter collection can better provide a solid basis for street lamp aging and energy-saving indicators.
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