Inner Mongolia Ordos GPRS Street Light Monitoring Project Case
1. Case Profile
Ulan Mulun Town is rich in mineral resources, known as the hometown of Sunstone, and has proven coal reserves of nearly 10 billion tons. It has the characteristics of low ash, low sulfur, low phosphorus, and high calorific value. "Three lows and one high" are well-known both at home and abroad. It is the main mining area of ​​Shenhua Shendong Coal Group. The environment is superior, located in the call - Bao - Hubei "Golden Triangle" area. In the territory, there are Assun Highway, A-Da Class I Highway, Baomao Expressway, Baoshen Railway, Baoxi Railway, and Ordos Airport. It has basically formed a three-dimensional transportation network integrating roads, railways, and aviation into Yijin Hollow. Flag and the important transportation hubs in the surrounding area. The municipal government made a major strategic decision. Located at the south side of the town, Ada first-class company, Baomao high-speed company, and all the roads around the road, the use of our intelligent lighting energy-saving control system to achieve tens of thousands of base light single lamp control and long-range voltage regulation and energy saving purposes.
With this system, the on/off of street lights and landscape lights in the Ulan-Mulan area can be automatically controlled. At the same time, because the city lighting monitoring system has automatic alarm and patrol, selective measurement function, combined with the display interface, the dispatcher can understand the location and status of the fault within a few seconds after the fault occurs, and provide powerful force for timely repair. Protection. The timely maintenance of the street lights can greatly reduce the complaints against the lighting management department, and it has been actively recognized by the municipal administrative department. This system basically realizes the modernization and informatization of urban lighting management, making the urban management level reach the domestic leading level and becoming a new bright spot in urban construction.
2. System Overview
GPRS intelligent lighting energy-saving system is a new generation of urban road lighting management system introduced by our company. The system adopts advanced intelligent control technology, light pressure adjustment and energy saving technology, wireless communication technology, GIS technology, remote video technology, and large screen technology. Provides a stable, reliable, convenient, efficient and energy-saving integrated management system for urban security lighting, functional lighting and landscape lighting management.
System structure
3.1 Monitoring Terminal Hardware Composition
The monitoring terminal hardware system consists of an intelligent centralized controller, a single-light node controller, an energy-saving power distribution cabinet, and a GPRS DTU remote data transmission module. It is mainly used to realize the measurement and control of the site power and the collection work. The data and alarm information of the site are transmitted to the street light monitoring and management center through the data transmission module.
3.1.1 Implementation Features
• Telemetry: three-phase voltage detection, 12-channel current detection, active power and power factor detection, 2-channel transmitter interface (connectable to test light, temperature, etc.)
• Remote control: 8 relay outputs, the contact is AC 220V12A, each has a set of normally open and normally closed contacts, which supports local control, testing and all parameter display.
• Remote signaling: 8 channels of isolation switch/pulse input, six of which can be connected to the auxiliary node of the AC contactor, and the other two are connected to the meter pulse output and door open alarm switch respectively.
• Communication: 2-way isolated 232 or 485 interface, following the MODBUS industry standard protocol.
• With remote meter reading interface.
• With remote auto regulator interface.
• Remote configuration of cabinet voltage
• Built-in GPRS DTU wireless data transmission device.
3.2 Monitoring Management Software Composition
Including operating system and database software, lighting monitoring system application software, lighting monitoring geographic information system (GIS), lighting production management system, remote real-time query module, remote meter reading and automatic electricity consumption statistics module, short message alarm module, etc.
3.2.1 Implementing Features
• Use the time-control method to control the lighting, realize reservation control, time-sharing control, and smart phone software control.
• The switch lights can be remotely controlled automatically and manually to achieve real-time control and point-to-point control.
• Group devices by road segment to achieve split-level control.
• Automatic patrol, manual patrol, and selective measurement (collection of three-phase voltage, 12-channel current, related power, reactive power, power factor, and various digital state quantities).
• Alarm processing. Alarm content includes: daytime lighting, night lights, remote controller overheating, distribution box door switch is not normally open, voltage, current limit and power supply line power failure and other failures, can be computer and SMS at the same time warning.
• Automatically calculate the lighting rate. According to voltage, current, power factor changes automatically light rate estimates.
• Remote query print function. According to the statistical data of year, month, and day, the data can be printed.
• Security management. Multi-level operation password and automatic password protection.
• The system implements "three remote" functions: remote control, telemetry, and remote messaging.
• Receive and process reporting information at any time through the ongoing patrol monitor's operational status.
• Perform alarm processing such as over-limit, switching, communication interruption, and power failure.
• System capacity: 1 master station, 9999 sub-control points, the scale can be flexibly configured; it can also constitute networked control.
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Monitoring interface
3. Project income
4.1 Save electricity
Reasonable switching light control power saving: When the original clock control mode is running, it is necessary to periodically adjust the time setting of the clock control device. Due to manpower, the adjustment cycle cannot be too short, generally 1-2 times per month. In this way, you need to set aside about 15 minutes for each adjustment, that is, 15 minutes ahead of time, and 15 minutes later for a total of about 30 minutes. In this way, the lights are turned on for an average of 30 minutes each day during each adjustment cycle.
Elimination of abnormal lighting during the day to save electricity: According to the experience data of the street lighting industry, an average month requires a lot of manpower and resources to troubleshoot irregular lighting during the day, each year can reduce the amount of considerable expenditure.
Improve the life of grid equipment and lamps: traditional street lamp management (manual or clock-controlled) requires the lights to be fully on, and all lights must be turned off, which has a great impact on the grid load and the lamp. After the system is adopted, it can significantly reduce the power grid. And the impact of lamps can make the lamp's useful life extend.
Remote voltage regulation and energy saving: The system can use a PC software to adjust the voltage of the cabinet. When there are fewer pedestrians in the middle of the night, we can achieve the goal of energy saving by adjusting the voltage. The actual lamp brightness is basically unchanged, and the energy saving effect can be achieved. It reaches 40 percent or more.
Remote metering and copying automatic metering: traditional electricity metering is done by manually driving a meter to the site, which is inefficient and costly. After adopting this system, it can monitor the electricity consumption in a certain period of time and in a certain area, which not only saves manpower and material resources, but also can aggregate and report the electricity situation in a timely manner, reducing costs and greatly improving work efficiency. To maximize the savings in cable and wire and labor costs: The system can maximize the savings of cables and wires, can greatly reduce construction costs and shorten the construction period, it will not affect road traffic, and social effects can be imagined.
Humanized services: Due to the versatility of the system, various lighting control methods can be implemented. According to the different needs of each city, we can maximize safety lighting, user-friendly lighting and intelligent lighting.
4.2 Social Benefits
To enhance the urban brand image: The urban landscape lighting system is not only a public welfare undertaking but also an urban image project. The completion of the city lighting monitoring system will enable the city’s lighting management level to adapt to the modern metropolis image, increase the lighting ratio, and reduce The breakdown of the light, the bright light up, the dark dark down, reasonable lighting, beautify the lighting, create a modern urban science and art perfect combination of lighting effects, establish a city's brand image.
Improve the living environment: Through the system's scene switching function, different combinations of lighting can be performed according to the actual situation, and the city building lighting can be managed in a unified manner, so that the usual date, holidays and weekend lights have different effects, and the human settlement can be fully improved. surroundings.
Improve the investment environment: Through the transformation of the system, the lighting, beautification, and security lighting of the entire city can be improved, the investment environment can be fully improved, and foreign businessmen can be better attracted to visit and invest in the city to promote the development of the city.
Improve the level of traffic safety and social security: through systematic transformation, rational lighting and lighting will be enabled so that street lights in streets and alleys of cities will be lit up reasonably, avoiding areas in the old system that have no lights or “midnight lights†to bring in after midnight. The darkness of the entire area has brought inconvenience to people's nighttime travel. At the same time, it will significantly reduce the occurrence of traffic accidents and black crimes, and improve traffic safety and social security.
4. Small knot
In summary, the company's own research and development of intelligent lighting control system has many outstanding advantages, it is advanced technology, the advanced computer technology, wireless communication technology and Internet technology applied to urban lighting management. It provides efficient management and intelligent control of lighting projects for roads, landscapes and signage buildings, and at the same time it has created very good economic and social benefits.