LED street lamp control system based on electric power carrier communication technology

Abstract

The invention discloses an LED street lamp control system based on an electric power carrier communication technology, which is in a three-layer network structure comprising a single lamp controller, a centralized controller and a management center, wherein the single lamp controller takes a singlechip as a core to be in charge of controlling a street lamp and collecting street lamp working parameters; the centralized controller adopts embedded system design, operates a power line carrier technology and carries out group or single control on street lamps in areas according to preset illumination strategy and assistant illumination intensity control strategy; the management center is mainly composed of a personal computer PC and street lamp system management software to display lamp street state (luminance, voltage, current and power) information; and a GPRS wireless transmission technology or Internet network is used for realizing the remote management of the street lamp switch and luminance regulation. Thus, by using the system, operations such as scheduling events, data record reading, event monitoring, warning response and the like can be realized, and historical data can be inquired.

Description

technical field [0001] The invention relates to a street lamp control system, in particular to an intelligent control system for LED street lamps. Background technique [0002] Traditional street lamps often use high-pressure sodium lamps. The overall low luminous efficiency of high-pressure sodium lamps has caused a huge waste of energy. The light source of high-power LED street lamps uses low-voltage DC power supply and high-efficiency white light synthesized by GaN-based power blue LEDs and yellow phosphors. Diodes have the advantages of safety, energy saving, environmental protection, long life, fast response, and high color rendering index; LEDs are easy to control, and the brightness of LEDs can be changed by changing the duty cycle of the PWM control signal. [0003] With the rapid and stable development of my country's economy, urban lighting projects are constantly being improved and beautified. As an important part of urban lighting, street lamps are directly rela...

AI Technical Summary

Problems solved by technology

Traditional street light control and maintenance methods are far from being able to adapt to the speed of urban modernization, mainly reflected in: (1) The way of switching lights is backward: the current street light control still stays in the manual, light control, and time control methods

Affected by seasons, weather and human factors, the level of automation management is low

As a result, there will be: turn on the lights early and turn off the lights late; or turn on the lights late and turn off the lights early; (2) Data transmission mode: the current system uses VHF and UHF radio stations, which are easily disturbed by urban construction, resulting in adjustment and control capabilities Insufficient; (3) There is no monitoring of street lamp conditions: the existing management of lighting facilities mainly adopts the manual inspection mode, which not only has a large workload, but also wastes manpower, material resources and financial resources

The faults mainly come from reports from inspectors and complaints from citizens. They lack initiative, timeliness, and reliability. They cannot monitor the operation status of street lights in the city in real time, accurately and comprehensively, and lack effective fault warning mechanisms; (4) Monitoring level: Due to technical reasons, most systems are only at the line level, unable to achieve effective control of a single street lamp, and cannot accurately locate faulty street lamps

(5) The regional street lamp controllers of the existing street lamp system mostly use 8 / 16-bit single-chip microcomputer as the main control chip, and the control mode and system scalability are poor

However, it uses PIC12C508 microcontroller as the main control chip, which has insufficient control capability and poor system scalability.

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