1. Introduction to System Architecture

This system integrates various digital technologies such as wireless communication network technology, computer control integration technology, geographic information system (GIS) technology, etc. Wireless monitoring signals are exchanged between the monitoring center and various dispersed street lamp control cabinets through dedicated wireless radio communication, and cable alarms are exchanged through wireless communication. After the completion of the system, the road lighting system will be automatically monitored and managed by computers. The system is fully functional, with high reliability, practicality, and economy.
The system consists of a monitoring and management center station and several sub stations, forming a two-level distributed control system. The system can accommodate up to 999 street lamp monitoring points, fully meeting the needs of road expansion. Users can efficiently, reliably, and comprehensively manage these three aspects through a monitoring and management center.

2. Product Overview

The wireless monitoring of street lamps consists of sub modules such as control module, acquisition module, and communication module. The communication module is responsible for receiving data issued by the central control room and sending the data collected on site to the central control room. The control module completes the control of turning on and off the street lights. The acquisition module completes the collection of on-site voltage, current and other data, and provides feedback on the execution of control commands.
The wireless monitoring system for street lamps can automatically track the sunrise and sunset times as well as the light intensity based on the local latitude and longitude. It adopts time and light control to automatically control the turning on and off time, and can intelligently adjust the output voltage. It can also remotely measure the working current, voltage and other working status data of various control points on site, and automatically analyze and judge the operation of street lamps based on the collected data, and automatically calculate the lighting rate.
Each monitoring point of the system can simultaneously sample and control multiple circuits, greatly meeting the expansion needs of the system. In addition, the system can provide voice and audio-visual alarms for various faults, anti-theft alarms, and improve the reliability, safety, and economy of the street lighting system.
The wireless monitoring system software for road lighting is an important component of the entire lighting monitoring system. Mainly responsible for rotation and data exchange with system terminals. All operations on the terminal are completed through the interface provided by the software, and it provides a complete set of functions such as data statistics, data queries, fault statistics, and on/off light statistics. The software is equipped with a watchdog function, which runs continuously for 24 hours. If the program terminates abnormally, it can automatically restart.
The centralized monitoring system for street lamps consists of three physical layers: the monitoring management center, communication network, and street lamp monitoring terminals (one for each switch box). The street lamp centralized monitoring system transmits real-time signal status and system parameters of each monitoring terminal through third-party public wireless networks - China Unicom WCDMA, China Mobile GPRS, or China Telecom CDMA, generating a certain amount of data traffic. According to the data transmission traffic, a certain amount of operating fees need to be paid to third-party operators every month. The monitoring and management center needs to introduce fiber optic or broadband with a fixed IP address (bandwidth of 4M-10M)

3. Function Introduction

The "four remote" function provides fully automatic monitoring of the operation status of street lamps.
Remote control: remotely control the switch of street lamps.
Telemetry: Remote measurement of all electrical parameters of the street lamp distribution cabinet.
Remote signaling: Real time automatic transmission of equipment fault information and self diagnostic information, facilitating timely processing by management departments.
Remote adjustment: It can remotely adjust the parameters of terminal devices and achieve maximum energy saving through remote dimming based on time, latitude, longitude, and illumination (monitoring terminals with energy-saving modules).
◇ Switch control - The monitoring center can turn on and off street lights within its jurisdiction at any time.
◇ Free grouping - Street lights within the jurisdiction can be classified (all night lights, midnight lights, and landscape lights) and controlled, with custom grouping (optional for one or multiple terminals).
◇ Dimming control - By setting the voltage, the monitoring terminal with energy-saving module can remotely adjust the output voltage of the energy-saving module, thereby achieving the function of dimming, which is both energy-saving and humanized management.
◇ Extended functions - This system has a standard database interface that can be seamlessly integrated with other intelligent platforms. At the same time, it also reserves a single lamp monitoring collector interface, which provides convenience for future system upgrades and renovations.
◇ Extended Function Memory Function - When the central system has a fault, the terminal can automatically operate according to the last control mode. Similarly, if the terminal has a fault, the terminal can also operate according to the last mode to ensure that the system can work.
◇ Extended unmanned function - The system can send alarm information to designated staff members' mobile phones through the short message module, and can send to 3 mobile phones.
◇ Extended Function Active Query - The monitoring and management center can actively query the switch status, current and voltage, power factor, lighting rate, power consumption, and other data of each lighting device.
◇ Intelligent operation of extended functions - After inputting pre-set strategies into the system, the system will automatically execute instructions without manual operation, which is convenient and effective.
Support multi platform monitoring - leaders or staff can access monitoring information anytime and anywhere while traveling or working outdoors, control street lights, and support mobile phones Tablet computer (PDA) remote login, supports C/ The S architecture and BS architecture support WEB version monitoring, but do not support setting monitoring parameters for mobile SMS.
◇ Extended Function Data Storage - When the on-site monitoring terminal is running, all data (current, voltage, power factor, lighting rate, etc.) will be stored locally and automatically backed up on the server.
◇ Extended Function Fault Alarm - Real time alarm for lamp failure, equipment and line theft, abnormal working status, electricity theft, and corresponding warnings.
◇ Extended Function Curve Report - The system can generate analysis curves and reports of current, voltage, electrical energy, various switch information, lighting rate, and switch time for managers to solve problems

4. Multi platform remote monitoring function

The system can achieve fixed-point monitoring, such as when leaders or staff are on business trips or working outdoors, they can access the monitoring situation anytime and anywhere, control the street lights, support remote login from mobile phones and tablets (PDA), support C/S architecture and BS architecture (support WEB version monitoring), support setting monitoring parameters through mobile SMS, so that staff with different operating permissions can connect to the system host through the network, query the real-time operating status and parameters of the system host, and display the system screen. Remote access from different locations can also be achieved. After obtaining control permissions, remote access personnel can perform online inspections, control, and other operations on system terminal devices.
Urban lighting monitoring automation system software: This system software is compatible with multiple communication methods (radio, GPRS, 2G), ensuring future expansion and upgrading of the system. The system software comprehensively manages the daily operation of the street lamp system. Conduct comprehensive statistics on the operation and usage information of streetlight equipment, automatically generate various reports for reference by management personnel, and facilitate management and maintenance. Ability to generate statistical analysis reports through artificial intelligence statistical analysis of device operation data stored in historical databases

5. Monitoring Cases (Part)

In response to the existing deficiencies in the management of street lamps, and in accordance with the requirements of energy conservation and management of municipal street lamps, advanced computer management technology, embedded management technology, power carrier communication technology, GPRS/3G/GSM wireless communication technology, network monitoring technology, and modern measurement and control technology have been adopted to successfully develop an intelligent street lamp monitoring system. This system solves the control problem of urban street lighting by using remote control, remote signaling, telemetry, telecontrol, and teleconvision for the operation status of urban street lighting, and transmitting data through wide area network and wireless network. It highlights the automatic inspection of street lighting, real-time monitoring of street lighting operation parameters, dynamic adjustment of street lighting operation parameters, analysis of equipment operation status, recording of equipment operation status, and real-time generation of various alarms through sound, light, electricity, and SMS notifications, achieving fine management of street lighting, significantly improving the quality and efficiency of operation, saving electricity, reducing costs, and maintenance expenses.
System composition
The intelligent street light monitoring system platform mainly consists of four parts: monitoring center, monitoring terminal, communication network, and client. It can be adjusted according to the specific scale and demand of each city to form a personalized management system suitable for that city.