CN111163557A

CN111163557A - LED energy-saving modular control system

Info

Publication number: CN111163557A
Application number: CN202010151389.5A
Authority: CN
Inventors: 胡锋; 王佳盟
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-05-15

Abstract

The invention discloses an LED energy-saving modular control system, belongs to the technical field of street lamp control systems, and solves the problems of power waste of an LED control system and maintenance and replacement of related devices in the prior art. The light source module comprises a switching power supply module, a light control module, a pedestrian detection module, a delay control module and an LED driving module, wherein the switching power supply module is used for converting alternating current into direct current and then electrically connecting the direct current with the light control module, the pedestrian detection module, the delay control module and the LED driving module respectively, the light control module is connected with a low-level reset end of a chip in the delay control module to realize light detection and on-off control, the delay control module is connected with the LED driving module, and the LED driving module is connected with the light source module. The energy-saving LED energy-saving modular control system can convert the service environment around the LED such as illumination, pedestrians and the like into an electric signal through the conversion circuit, saves electric energy and prolongs the service life of the LED.

Description

LED energy-saving modular control system

Technical Field

The invention belongs to the technical field of street lamp control systems, and particularly relates to an LED energy-saving modular control system.

Background

The control technology of the street lamp road lighting system influences the management level of the system and the energy-saving effect of the lighting system, and the activity frequency of people has obvious time interval difference, so that a lot of long-time lighting is ineffective, waste is caused, the loss rate of a lamp tube is increased, the maintenance workload is large, and the electricity consumption cost is high. If can introduce LED intelligent modularization control, seek the breakthrough on the mode of operation of illumination lamps and lanterns, realize promptly that "people come the light, people go to turn dark, automatic dormancy, throw light on as required", then will give full play to LED's energy-conserving advantage. In addition, the signal detection distance of the common induction lamp is small, the actual operation is inconvenient, the service life is short, and the maintenance cost is high.

Disclosure of Invention

In view of the above, the present invention provides an energy-saving modular LED control system, which has a modular structure and is capable of controlling the LED environment according to the following conditions, so as to solve the problems of short service life and difficult maintenance of the LED sensing control system.

The purpose of the invention is realized by the following technical scheme: an energy-conserving modularization control system of LED which characterized in that: belong to street lamp control system technical field, solved LED control system electric power waste among the prior art to and relevant device maintenance replacement problem. Including switching power supply module, light-operated module, pedestrian detection module, time delay control module, LED drive module, above-mentioned all modules encapsulate alone, and switching power supply module carries out the electricity with light-operated module, pedestrian detection module, time delay control module, LED drive module respectively after converting the alternating current into the direct current and connects, the light-operated module is connected with the 2 low level of SA555D chip pin resets in the time delay control module and holds the connection, realizes light detection and on-off control, pedestrian detection module is connected to SA555D chip 2 pins in the time delay control module, realizes pedestrian detection, SA555D chip pin 3 is connected with LED drive module in the time delay control module.

Preferably, the light control module adopts a photoresistor R6, an adjustable resistor R7, a resistor R5 and a triode VT3 to form a light control circuit, wherein one end of the photoresistor R6 is connected to the switching power supply module, and the other end is connected to the base set of the triode VT3, one end of the resistor R5 is connected to the switching power supply module, and the other end is connected to the collector of the triode VT3, one end of the adjustable resistor R7 is connected to the collector of the triode VT3, and the other end is connected to the ground, the emitter of the triode VT3 is grounded, and the collector is connected to the delay control module, and the light control module changes the photoresistor R6 through the sunlight intensity to realize the enabling control of the SA555D chip in the delay control module.

Preferably, the pedestrian detection module comprises a TX982, resistors R1 and R2 and a triode VT1, a POWER pin of the TX982 is connected with the switching POWER supply module, an OUT terminal is connected with a resistor R1 and then connected with a base electrode of the triode VT1, a GROUND terminal is grounded, one end of a resistor R2 is connected with the POWER pin of the TX982 and one end of the POWER pin is connected with a collector electrode of the triode VT1, and the collector electrode of the VT1 is connected with a pin 2 of an SA555D chip in the delay control module.

Preferably, the delay control module 4 adopts a SA555D chip, resistors R3 and R4, a polar capacitor C1, a capacitor C2, and a diode VT2 to form a monostable flip-flop, the SA555D chip has

pins

1, 2, 3, 4, 5, 6, 7, and 8, one end of the resistor R3 is connected to one terminal pin 2 of the pin 8, the anode of the diode VT2 is connected to the pin 8 and the cathode of the chip SA555D, one end of the resistor R4 is connected to the anode of the polar capacitor C1, the anode of the polar capacitor C1 is connected to the pins 6 and 7, the other end of the resistor R2 is connected to one terminal pin 5 of the pin 1, the pin 8 is connected to the switching power supply module, the pin 2 is connected to the pedestrian detection module 3, the pin 3 is connected to the LED driving module 5, the pin 4 receives a negative pulse signal sent by the light control module 2, and the pin 1 is grounded.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

Fig. 1 is a schematic structural diagram of a modular control system according to the present invention.

Fig. 2 is a circuit diagram of a light control module according to the present invention.

FIG. 3 is a circuit diagram of a pedestrian detection module according to the present invention.

Fig. 4 is a circuit diagram of the delay module of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Referring to the embodiment shown in fig. 1, an energy-saving modular control system for LEDs is characterized in that: the LED street lamp control system belongs to the technical field of street lamp control systems, and solves the problems of power waste of the LED street lamp control system and maintenance and replacement of related devices in the prior art. Including switching power supply module 1, light-operated module 2, pedestrian detection module 3, time delay control module 4, LED drive module 5, above-mentioned all modules encapsulate alone, carry out the electricity with light-operated module 2, pedestrian detection module 3, time delay control module 4, LED drive module 5 respectively after switching power supply module 1 converts the alternating current into the direct current and connect, light-operated module 2 and time delay control module 4 in the 2 low level of SA555D chip pin reset end be connected, realize light detection and on-off control, SA555D chip pin 3 is connected with LED drive module in the time delay control module 4, and LED drive module is connected with the LED lamp.

Referring to fig. 2 and 3, the light control module 2 adopts the photo resistors R6, R7, R5 and the transistor VT3 to form a light control circuit, wherein one end of the photo resistor R6 is connected to the switching power supply module 1, the other end is connected to the base set of the transistor VT3, one end of the resistor R5 is connected to the collector of the switching power supply module 1, one end of the adjustable resistor is connected to the collector of the transistor VT3, and the other end is connected to the collector of the transistor VT3 and commonly grounded, the light control module realizes the control of the SA555D chip in the delay control module by changing the photo resistor R6 according to the sunlight intensity, that is, when the sunlight intensity is large in the daytime, the photo resistor R6 is small, the VT3 is in a saturated state, the SA555D pin 4 is reset at a low level, the pin 3 outputs a low level, when a person passes through the LED lamp and becomes weak, the resistance of the no sunlight intensity R6 is increased at a night, so that the transistor, the reset function is not in effect, the delay control module is in a standby state, once a person enters the detection area, the pin 3 normally sends a high-level driving signal to the LED driving module, and the light control sensitivity of the light control module can be adjusted by changing the adjustable resistor R7.

Referring to fig. 3 and 4, the pedestrian detection module 3 is composed of TX982, resistors R1, R2 and a triode VT1, the TX982 is a microwave induction control module manufactured by using microwave doppler effect, a microwave oscillator with a working frequency of 2.4GHz is composed of a loop antenna and an internal microwave triode, an ellipse with a radius of 2-6 m is generated in the direction of the axis core, when a person or a moving object enters, a reflected echo is generated, the echo signal is mixed by a circuit signal inside the induction control module, a weak frequency shift signal is separated, a special microprocessor carries OUT pulse frequency and pulse width processing on the signal, a control signal high level signal is output, the transmitting and receiving processes of the signal can eliminate interference of small animals, high frequency communication signals, lightning and on-off of an electric appliance, a POWER pin of the TX982 is connected with a switching POWER supply module 1, an OUT terminal is connected with a resistor R1 and then connected with a base of the triode VT1, the GROUND end is grounded, one end of a resistor R2 is connected with one end of a switching power supply module 1 and connected with a collector of a triode VT1, the collector of VT1 is connected with a pin 2 of an SA555D chip in a detection delay control module 4, a high level signal generated by TX982 in work drives a base of the triode VT1, an instantaneous low level signal is generated on the collector and is equivalent to a negative pulse, and the negative pulse is used as a delay control module and is input as a trigger signal of the SA555D chip in 4.

Referring to fig. 3 and 4, the delay control module 4 adopts a SA555D chip, resistors R3 and R4, a polar capacitor C1, a capacitor C2 and a diode VT2 to form a monostable flip-flop, the SA555D chip is provided with

pins

1, 2, 3, 4, 5, 6, 7 and 8, one end of the resistor R3 is connected with the switching power supply module 1, one end of the resistor R3 is connected with the SA555D chip pin 2, the anode of the diode VT2 is connected with the switching power supply module 1, the cathode of the diode VT2 is connected with the chip pin 2, one end of the resistor R4 is connected with the anode of the polar capacitor C1 which is connected with the other end of the switch power supply module 1, the anode of the polar capacitor C1 is respectively connected with the chip pins 6 and 7, the other end is grounded, one end of the capacitor C2 is connected with a chip pin 1, the other end of the capacitor C2 is connected with a chip pin 5, a pin 8 of the SA555D chip is connected with the switching power supply module, a pin 2 is connected with the pedestrian detection module 3, a pin 3 is connected with the LED driving module 5, and a pin 4 receives a negative pulse signal sent by the light control module 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-conserving modularization control system of LED which characterized in that: belong to street lamp control system technical field, solved LED control system electric power waste among the prior art to and relevant device maintenance replacement problem.

2. Including switching power supply module 1, light-operated module 2, pedestrian detection module 3, time delay control module 4, LED drive module 5, above-mentioned all modules encapsulate alone, switch power supply module 1 carries out the electricity with light-operated module 2, pedestrian detection module 3, time delay control module 4, LED drive module 5 respectively after converting the alternating current into the direct current and connects, the reset end of SA555D chip pin 2 low level is connected in light-operated module 2 and the time delay control module 4, realizes light detection and on-off control, pedestrian detection module 3 is connected to SA555D chip 2 foot in the time delay control module 4, realizes pedestrian detection, SA555D chip pin 3 is connected with LED drive module in the time delay control module 4.

3. The LED energy-saving modular control system of claim 1, wherein: the light control module 2 adopts a photoresistor R6, an adjustable resistor R7, a resistor R5 and a triode VT3 to form a light control circuit, wherein one end of the photoresistor R6 is connected with the switching power supply module 1, the other end of the photoresistor R6 is connected with the base set of the triode VT3, one end of the resistor R5 is connected with one end of the switching power supply module 1, the other end of the resistor R7 is connected with one end of the collector of the triode VT3, the other end of the collector of the triode VT3 is grounded, the emitter of the triode VT3 is grounded, the collector is connected with the delay control module 4, the light control module enables and controls an SA555D chip in the delay control module by changing the intensity of sunlight, and light sensitivity adjustment is realized by the.

4. The LED energy-saving modular control system of claim 1, wherein: the pedestrian detection module 3 is composed of a TX982, resistors R1, R2 and a triode VT1, a POWER pin of the TX982 is connected with the switching POWER supply module, an OUT terminal is connected with a resistor R1 and then connected with a base electrode of the triode VT1, a GROUND terminal is grounded, one end of a resistor R2 is connected with a POWER pin of the TX982 and one end of the POWER pin is connected with a collector electrode of the triode VT1, and the collector electrode of the VT1 is connected with a pin 2 of an SA555D chip in the delay control module 4.

5. The LED energy-saving modular control system of claim 1, wherein: the delay control module 4 adopts an SA555D chip, resistors R3 and R4, a polar capacitor C1, a capacitor C2 and a diode VT2 to form a monostable trigger, the SA555D chip has pins 1, 2, 3, 4, 5, 6, 7 and 8, one end of the resistor R3 is connected with a pin 8 and is terminated with the pin 2, the anode of the diode VT2 is connected with a pin 8 and the cathode of the SA555D chip pin 2, one end of the resistor R4 is connected with the anode of the polar capacitor C1, the anode of the polar capacitor C1 is respectively connected with the pins 6 and 7, the other end of the polar capacitor C2 is connected with a pin 5 at one end of the pin 1, the pin 8 is connected with a switching power supply module, the pin 2 is connected with a pedestrian detection module 3, the pin 3 is connected with an LED driving module 5, the pin 4 receives a negative pulse signal sent by the light control module 2, and the pin 1 is.