CN201267036Y - LED intelligent lighting energy-saving control system - Google Patents

Abstract

The utility model relates to an LED intelligent lighting energy-saving control system, which takes the MCS-51 single-chip microcomputer as the core, and forms an automatic control system integrating acquisition, processing and control, and includes a main control circuit unit, an acquisition circuit unit, an execution unit and a software control unit. The switch and brightness of the lighting are automatically controlled according to the personnel and vehicle flow in the working environment and the brightness of the ambient fill light. The utility model has the dual functions of improving the efficiency of electricity use, saving electric energy and alleviating the pressure of power supply during peak electricity consumption.

Description

LED Intelligent Lighting Energy Saving Control System

technical field

The utility model relates to road lighting control equipment, in particular to an LED intelligent lighting energy-saving control system.

Background technique

LED light sources are considered the fourth generation of lighting sources, and LED light sources have already dominated LED street lights. The use of LED light sources for urban lighting LED street lights is a development trend. Because LED light-emitting devices are cold light sources, they have high luminous efficiency, low operating voltage, and low energy consumption. 50%. LED life can reach 100,000 hours, which is 10 times that of fluorescent lamps and 100 times that of incandescent lamps. Replace incandescent or fluorescent lamps with LEDs, which is environmentally friendly and pollution-free. It is safe and reliable to use and easy to maintain, so it is favored by people.

At present, most of the LED lighting fixtures in public buildings are controlled by manual or time-controlled switches. In rainy weather and when the four seasons change, there is often a phenomenon that there is no timely switch, resulting in a large amount of energy waste and inconvenience in use. And traffic flow control lighting brightness.

Utility model content

Aiming at the above-mentioned defects of the prior art, the utility model provides an LED energy-saving intelligent lighting control system with reasonable design, low power consumption, good energy-saving effect, long service life and stable street lamp brightness. , traffic flow and ambient fill light brightness to automatically control the switch and brightness of the lighting. The utility model has the dual functions of improving power consumption efficiency, saving power energy and alleviating the power supply pressure of peak power consumption.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: an LED intelligent lighting energy-saving control system, which takes MCS-51 single-chip microcomputer as the core to form an automatic control system integrating collection, processing and control, including Main control circuit unit, acquisition circuit unit, execution unit, software control unit. The main control unit includes power supply, MS-51 microprocessor, A/D converter, D/A converter, watchdog circuit, temperature automatic compensation circuit, keyboard and liquid crystal display; Reset, power-on reset, and undervoltage detection reset functions can make the running program generate a reset signal in the running state, which improves the overall anti-interference ability. The temperature automatic compensation circuit is a temperature compensation circuit designed according to different climate environments. The sampling circuit unit includes a signal sampling circuit and a signal conditioning circuit, including a passive pyroelectric infrared detector, an environmental noise detector, and a visible light detector; the signal conditioning circuit pre-processes the signal provided by the signal sampling circuit; the The execution unit includes a conditioning circuit, an LED drive control circuit, a time control switch, and an LED load. The LED drive unit uses a high-frequency pulse width modulation switching circuit to realize constant current control with power factor correction to drive the LED to emit light; during the operation of the software control unit, the main program calls the subroutines of each functional module to control the operating status of the lamp in real time .

According to the national standard urban lighting design standard (GJJ45-2006), the average illuminance of the slow lane of general roads is 5-101x, and the fast lane is preferably 15-251x. Each city can appropriately increase it according to the local economic level and actual needs, and the slow lane is the main one. For example, the working principle of the present utility model: first detect whether there are people and cars through passive pyroelectric infrared detectors and environmental noise, and detect the ambient brightness. If no one is with the car, the illuminance of all LED lamps is x<5 1x, and the LED lighting fixtures are in a high energy-saving state; The lamp is in the off state; 2. If the illuminance of the environment requiring lighting is x<10 1x, the LED lighting lamp is in the on state, and the illuminance of the LED lamp is adjusted according to the ambient illuminance, and the average illuminance released by the LED lamp to the road is: 5+ x<E<10-x.

It can be seen from the above technical solutions that the utility model has simple and effective circuits, environmental protection, good reliability, high efficiency, long life, energy saving of more than 50%, and the energy saving effect is very obvious. More than 60 LED street lights are installed on one road, and the pole It is 12 meters high and 15 meters wide. It emits soft white light. The visual effect exceeds that of high-pressure sodium lamps and is very stable. The utility model is not only suitable for road lighting, but also suitable for the popularization and use of outdoor and indoor lighting of civil buildings.

Description of drawings

Fig. 1 is a functional block diagram of the utility model.

Detailed ways

The utility model will be described in further detail below in conjunction with specific embodiments.

Referring to Fig. 1, the utility model takes MCS-51 single-chip microcomputer as the core to form an automatic control system integrating collection, processing and control, including main control circuit unit 2, collection circuit unit 1, execution unit 4, software control Unit 3. Described main control unit 2 comprises power supply, MS-51 microprocessor, A/D converter, D/A converter, watchdog circuit, temperature automatic compensation circuit, keyboard and liquid crystal display; Described watchdog circuit has Manual reset, power-on reset, and under-voltage detection reset functions can make the running program generate a reset signal in the running state, which improves the overall anti-interference ability. The temperature automatic compensation circuit is a temperature compensation circuit designed according to different climate environments. The power supply provides working voltage for each chip.

The MS-51 microprocessor performs arithmetic and logic operations on the signals and feedback signals of various sensors, and controls the components of the LED street lamp system to complete tasks in an orderly and orderly manner in accordance with a unified sequence. The sampling circuit unit 1 includes a signal sampling circuit and a signal conditioning circuit, including a passive pyroelectric infrared detector, an environmental noise detector, and a visible light detector; the signal conditioning circuit performs pre-processing on the signal provided by the signal sampling circuit; The execution unit 4 includes a conditioning circuit, an LED drive control circuit, a time-controlled switch, and an LED load. The LED drive unit uses a high-frequency pulse width modulation switching circuit to realize constant current control with power factor correction to drive the LED to emit light; during the operation of the software control unit, the main program calls the subroutines of each functional module to control the operating status of the lamp in real time . Its working principle: the signal input module realizes the input of the corresponding sensor signal into the data channel of the single-chip microcomputer. In the control system software, the signal of the infrared detector and the signal of the sound sensor are respectively rectified, amplified and digitized, and then processed into the Boolean data of the switch, and then phased or . The signal generated by the rectified and amplified ambient supplementary light intensity detection system is divided into two channels, one is a Boolean value, and is ANDed with the output generated after the first two signal processing, thereby generating a switch signal that determines the switch of the lamp, and the other is The environmental data is A/D converted, and then output to the output module of the system as a control signal code to adjust the brightness of the system, so as to achieve the purpose of controlling the brightness of the LED and achieve the purpose of intelligent lighting.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (3)

1. The LED intelligent lighting energy-saving control system, with the MCS-51 microprocessor as the core, forms an automatic control system integrating collection, processing and control, which is characterized in that it includes a main control circuit unit, an acquisition circuit unit, and an execution unit , software control unit, described main control unit comprises power supply, MS-51 microprocessor, A/D converter, D/A converter, watchdog circuit, temperature automatic compensation circuit, keyboard and liquid crystal display, respectively and acquisition The circuit unit and the execution unit are connected to receive the sampling signal of the acquisition circuit unit and send a control command to the execution unit; the sampling circuit unit includes a signal sampling circuit and a signal conditioning circuit for collecting and adopting signals; during the operation of the software control unit, through The main program calls the subroutines of each functional module to control the operating status of the lamps in real time; the execution unit is connected to the software control unit, which includes a conditioning circuit, LED drive control circuit, time-controlled switch, and LED load. Combined with the software control unit, the circuit is intelligently implemented. control. 2. The LED intelligent lighting energy-saving control system according to claim 1, wherein the acquisition circuit unit is a passive pyroelectric infrared detector, an environmental noise detector, a visible light detector or a combination thereof. 3. The LED intelligent lighting energy-saving control system according to claim 2, wherein the MS-51 microprocessor is 89C52.