CN107911901A - Outdoor Intelligent Lighting System Based on Power Amplifier - Google Patents

Abstract

The invention discloses a kind of outdoor intelligent illuminating system based on power amplifier, the problems such as can not being automatically turned on according to use environment, closing illuminator, cause energy waste existing in the prior art is mainly solved.Include the A.C. contactor of external sine-wave exchange, the rectified current and illumination control circuit being connected respectively with A.C. contactor, and the LED illumination lamp being connected with rectification circuit.Illumination control circuit includes two inputs four and door chip, power amplifier A1, the first filter circuit, photodiode VD1, power amplifier A2, the second filter circuit, and photodiode VD2.Through the above scheme, the present invention has the advantages that of simple structure and low cost, stable, the saving energy, detection are accurate, has very high practical value and promotional value in lighting technical field.

Description

Outdoor Intelligent Lighting System Based on Power Amplifier

technical field

The invention relates to the technical field of lighting, in particular to an outdoor intelligent lighting system based on a power amplifier.

Background technique

With the continuous development of lighting technology, intelligent lighting technology is becoming more and more mature. LED lighting fixtures have the characteristics of strong brightness, low power consumption, and long service life, providing users with maintenance-free lighting solutions. At present, most outdoor lighting equipment has gradually adopted maintenance-free LED lighting fixtures, which mainly include LED lights, controllers and mounting brackets. In order to realize automatic opening and closing of lighting fixtures, timers are often used to set the turn-on time. and closing time. But, the time of timer setting is fixed, if want to change the time of opening or closing lighting fixture, also must revise regularly. In rainy or cloudy weather with poor visibility, it is impossible to automatically turn on the lighting fixtures. Moreover, when the weather is better, the timer will also turn on the lighting at the same time. Consider both intelligence and energy saving.

Therefore, there is an urgent need to improve the lighting system to make lighting control more reliable and eliminate energy waste.

Contents of the invention

In view of the above shortcomings, the purpose of the present invention is to provide an outdoor intelligent lighting system based on a power amplifier, which mainly solves the problems in the prior art that the lighting lamps cannot be automatically turned on and off according to the use environment, resulting in energy waste and other problems.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

The outdoor intelligent lighting system based on the power amplifier includes an AC contactor connected to an external sine wave AC, a rectification current and lighting control circuit respectively connected to the AC contactor, and an LED lighting lamp connected to the rectification circuit.

Specifically, the lighting control circuit includes a two-input four-AND gate chip connected to the AC contactor at the Y3 port, a power amplifier A1 whose output terminal is connected to the A3 port of the two-input four-AND gate chip, and connected between the input negative electrode and the output terminal of the power amplifier A1. Resistor R5 between terminals, the first filter circuit connected to the positive input of power amplifier A1, resistor R1, resistor R2 and photodiode VD1 respectively connected to the first filter circuit, the output terminal is connected to the port B3 of the two-input four-AND gate chip The power amplifier A2, the resistor R6 connected between the negative input terminal and the output terminal of the power amplifier A2, the second filter circuit connected with the positive input terminal of the power amplifier A2, and the resistor R3, resistor R4 and photosensitive filter circuit respectively connected to the second filter circuit The diode VD2; the resistor R1, the resistor R3, the power amplifier A1, the power amplifier A2 and the two-input four-AND gate chip are respectively connected to the power supply VCC.

Further, the first filter circuit includes a parallel resonance L1C1 connected in series between the power amplifier A1 and the photodiode VD1, and a section of parallel resonance L2C2 connected to the parallel resonance L1C1 and the other end of which is grounded.

Further, the second filter circuit includes a parallel resonance L3C3 connected in series between the power amplifier A2 and the photodiode VD2, and a section of the parallel resonance L3C3 connected to the parallel resonance L3C3 and the other end of which is grounded.

Preferably, both the power amplifier A1 and the power amplifier A2 are LM358.

Further, the two-input four-AND gate chip is 74132TTL.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention cleverly arranges photosensitive diodes to collect the light intensity of the use environment through the photosensitive diodes. When the light intensity such as thunderstorms is weak, the outdoor lighting fixtures are turned on in advance to ensure the light intensity of the environment. In summer, when the light time is long and the light intensity is strong, it is controlled by a photosensitive diode, and the lighting turn-on time is delayed, and reliable control is performed according to the light intensity of the use environment. Compared with the traditional timer control method, while ensuring lighting, the equipment investment cost is lower, and the problem of energy waste is solved.

(2) The present invention can effectively eliminate circuit fluctuation interference by setting a filter circuit, make collection and detection more accurate, and make the control of turning on and off of outdoor lighting fixtures more reliable. Not only that, the present invention preferably sets up a power amplifier to amplify and compare the signals collected by the photosensitive diodes, output reliable high and low levels, make the control signal more stable, avoid lighting lamps from flickering due to control signal fluctuations, and prolong the service life of lighting lamps .

(3) In addition, the present invention performs NAND operation on the signal output by the power amplifier by setting two-input four-AND gate chips, and the AC contactor can be driven to pull in when the two photodiodes simultaneously collect the light intensity signal, such a Come, make the opening and closing operation of the lighting fixture more reliable.

In summary, the present invention has the advantages of simple structure, low cost, stable operation, energy saving, accurate detection, etc., and has high practical value and popularization value in the field of lighting technology.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a circuit diagram of lighting control of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and examples, and the embodiments of the present invention include but not limited to the following examples.

Example

The outdoor intelligent lighting system based on the power amplifier includes an AC contactor connected to an external sine wave AC, a rectification current and lighting control circuit respectively connected to the AC contactor, and an LED lighting lamp connected to the rectification circuit.

In order to ensure the reliable turning on and off of lighting fixtures, the lighting control circuit of the lighting system includes a two-input four-AND gate chip 74132TTL connected to the Y3 port and the AC contactor, and an LM358 power chip connected to the A3 port of the two-input four-AND gate chip at the output end. Amplifier A1, resistor R5 connected between the negative input terminal and output terminal of power amplifier A1, the first filter circuit connected to the positive input terminal of power amplifier A1, resistor R1, resistor R2 and photodiode VD1 respectively connected to the first filter circuit, The LM358 power amplifier A2 whose output terminal is connected to the B3 port of the two-input four-AND gate chip, the resistor R6 connected between the input negative pole of the power amplifier A2 and the output terminal, the second filter circuit connected to the positive pole of the power amplifier A2 input, and the Resistor R3, resistor R4 and photodiode VD2 connected to the second filter circuit; said resistor R1, resistor R3, power amplifier A1, power amplifier A2 and two-input four-AND gate chip are respectively connected to power supply VCC. Wherein, the first filter circuit includes a parallel resonant L1C1 connected in series between the power amplifier A1 and the photodiode VD1 , and a section of parallel resonant L2C2 connected to the parallel resonant L1C1 and grounded at the other end. The second filter circuit includes a parallel resonant L3C3 connected in series between the power amplifier A2 and the photodiode VD2, and a section of parallel resonant L3C3 connected to the parallel resonant L3C3 and the other end of which is grounded.

The following only takes the photodiode VD1 to collect the signal as an example. The power amplifier A1 input positive voltage is U1, and the power amplifier A1 input negative voltage is U2. The photodiode VD2 acquisition control process is the same as that of the photodiode VD1, and will not be repeated here.

The lighting control circuit is connected, when the light intensity is strong, the photosensitive diode VD1 is turned on and grounded, the power supply VCC is directly grounded through the resistor R1, the voltage input to the power amplifier A1 through the first filter circuit is U1 is 0, and the resistor R5 is fed back to the power The input negative pole voltage U2 of the amplifier A1 is bound to be greater than U1, the power amplifier A1 outputs a low level, and at the same time, the power amplifier A2 also outputs a low level, and the output Y3 terminal of the two-input four-AND gate chip is a low level, and the AC contactor Keep it disconnected, and the LED lighting, etc. are off. When the light intensity of the lighting environment is weak, the photodiode VD1 is cut off, the power supply VCC is divided by the resistor R1 and the resistor R2, and then the voltage U1 is output by the filter circuit. At this time, the voltage U1 is greater than U2, and the power amplifier A1 and power Amplifier A2 outputs high level, through the two-input four-AND gate chip output Y3 terminal is high level, the AC contactor is controlled to pull in, and the LED lighting is turned on.

The invention skillfully utilizes the photosensitive diode to collect the light intensity of the use environment to achieve the purpose of real-time monitoring. While ensuring the lighting of the outdoor use environment, it can also solve the problem of energy waste. Compared with the traditional timer, the cost of equipment investment Less expensive, more reliable control. It can be said that the present invention has outstanding substantive features and remarkable progress, and has broad market prospects and popularization value in the field of lighting technology.

The above-described embodiments are only preferred embodiments of the present invention, and are not limitations on the scope of protection of the present invention. However, all changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention. within.

Claims (5)

1. the outdoor intelligent illuminating system based on power amplifier, it is characterised in that the exchange including external sine-wave exchange connects Tentaculum, the rectified current and illumination control circuit being connected respectively with A.C. contactor, and the LED illumination being connected with rectification circuit Lamp；

The illumination control circuit includes two that Y3 ports are connected with A.C. contactor and inputs four and door chip, and output terminal is defeated with two Enter the four power amplifier A1 being connected with door chip A3 ports, be connected between power amplifier A1 input anode and output terminal Resistance R5, the first filter circuit being connected with power amplifier A1 input cathodes, the resistance being connected respectively with the first filter circuit R1, resistance R2 and photodiode VD1, the power amplifier A2 that output terminal is connected with two inputs four with door chip B3 ports, even The resistance R6 being connected between power amplifier A2 input anode and output terminal, second be connected with power amplifier A2 input cathodes Filter circuit, and resistance R3, resistance R4 and the photodiode VD2 being connected respectively with the second filter circuit；The resistance R1, Resistance R3, power amplifier A1, the inputs of power amplifier A2 and two four are connected with power supply VCC respectively with door chip.

2. the outdoor intelligent illuminating system according to claim 1 based on power amplifier, it is characterised in that described first Filter circuit includes being connected on parallel resonance L1C1 between power amplifier A1 and photodiode VD1, and one section with simultaneously Join the parallel resonance L2C2 of resonance L1C1 connections and other end ground connection.

3. the outdoor intelligent illuminating system according to claim 1 or 2 based on power amplifier, it is characterised in that described Second filter circuit includes the parallel resonance L3C3 being connected between power amplifier A2 and photodiode VD2, and one section Be connected with parallel resonance L3C3 and the other end ground connection parallel resonance L3C3.

4. the outdoor intelligent illuminating system according to claim 1 or 2 based on power amplifier, it is characterised in that described The power amplifier A1 and power amplifier A2 are LM358.

5. the outdoor intelligent illuminating system according to claim 4 based on power amplifier, it is characterised in that described two is defeated It is 74132TTL to enter four with door chip.