CN207766596U - A kind of lawn lamp control system based on infrared induction - Google Patents

Abstract

The utility model discloses a kind of lawn lamp control system based on infrared induction, including：Control module, infrared sensor, infrared power detection circuit, light adjusting circuit and inverter, the infrared sensor are connect with infrared power detection circuit, and infrared power detection circuit is connect with control module；Light adjusting circuit uses bidirectional thyristor non-pole light regulating circuit, output end to be connected to inverter pin, and inverter output end is connect with LED light group.The lawn lamp control system of the utility model enables Lawn lamp to realize according to infrared signal intensity adjustment Lawn lamp brightness, i.e., people close to when brightness increase to improve lighting condition, people far from when reduce illumination intensity with energy saving, there is more preferably energy-saving effect.

Description

A Lawn Light Control System Based on Infrared Sensing

technical field

The utility model relates to the field of electrical control systems, in particular to a lawn lamp control system based on infrared induction.

Background technique

Lawn lamp is a green and environment-friendly lighting fixture integrating energy saving, environmental protection and decorative lighting. It can power itself by converting solar energy, wind energy, etc. into electrical energy. Solar lawn lights are usually composed of solar panels, LED lights, rechargeable batteries, control circuits and lamps. When working, the solar energy can be converted into electrical energy and stored in the rechargeable battery during the day, and the rechargeable battery will automatically light up the LED lights through the control circuit at night. Due to the use of LED light sources, compared with traditional light sources, the life of LEDs can reach 100,000 hours. Solar lawn lights have been widely used in residential community green space beautification lighting, park lawn beautification lighting, garden villa beautification lighting, tourist attractions beautification lighting and other occasions.

In order to achieve a better energy-saving effect, lawn lights are often combined with infrared sensing functions, and are lit at night according to infrared sensing signals to illuminate pedestrians, but there are still some shortcomings, such as the brightness cannot be adjusted, etc. to a good energy-saving effect.

Utility model content

The purpose of this utility model is to provide a lawn lamp control system based on infrared induction, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A lawn lamp control system based on infrared induction, comprising: a control module, an infrared sensor, an infrared power detection circuit, a dimming circuit and an inverter, the infrared sensor is connected to the infrared power detection circuit, and the infrared power detection circuit is connected to the control module Connection; the dimming circuit adopts a bidirectional thyristor stepless dimming circuit, the output end is connected to the inverter pin, and the inverter output end is connected to the LED light group.

As a further solution of the present invention: the control module is also connected with a PWM timer, and the control terminal of the PWM timer is connected with an electronic switch.

As a further solution of the present invention: the electronic switch is arranged in a circuit connected to the inverter and the dimming circuit.

As a further solution of the utility model: the infrared power detection circuit uses a NE5532 operational amplifier to form a comparator, and uses a CD40106 as a Schmitt trigger to form a detection circuit.

As a further solution of the utility model: the control module is preferably a MCS-51 single-chip microcomputer.

Compared with the prior art, the beneficial effect of the utility model is: the lawn lamp control system of the utility model enables the lawn lamp to adjust the brightness of the lawn lamp according to the intensity of the infrared signal, that is, the brightness increases when people approach to improve the lighting conditions, and the people Reduce the lighting intensity to save energy when you are far away, which has better energy-saving effect.

Description of drawings

Figure 1 is a schematic diagram of the principle of a lawn lamp control system based on infrared induction.

Figure 2 is a schematic diagram of the dimming circuit in a lawn lamp control system based on infrared induction.

Figure 3 is a schematic diagram of an infrared power detection circuit in a lawn lamp control system based on infrared induction.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 3. In the embodiment of the present invention, a lawn lamp control system based on infrared induction includes: a control module 4, an infrared sensor 6, an infrared power detection circuit 5, a dimming circuit 3 and an inverter 1 , the infrared sensor 6 is connected to the infrared power detection circuit 5, and the infrared power detection circuit 5 is connected to the control module 4; the dimming circuit 3 adopts a bidirectional thyristor stepless dimming circuit, and the output end is connected to the inverter 1 pin, and the inverter The output terminal of the device 1 is connected to the LED light group, the infrared sensor 6 is used to detect the infrared signal around the lawn lamp, and the infrared signal density is detected by the infrared power detection circuit 5 to generate a pulse signal, which is fed back to the control module 4, and the control module 4 controls the output of the battery Voltage, after multi-directional triggering of the dimming circuit 3, the brightness of the LED light group can be adjusted, so that the brightness of the lawn lamp can be adjusted according to the intensity of the infrared signal, that is, the brightness increases when people approach to improve the lighting conditions, and the lighting intensity decreases when people stay away. energy saving.

The control module 4 is also connected with a PWM timer 7, the control terminal of the PWM timer 7 is connected with the electronic switch 2, and the PWM timer 7 can control the on-off of the electronic switch 2 at regular intervals, and it is only turned on at night.

The electronic switch 2 is arranged in a circuit connected between the inverter 1 and the dimming circuit 3 .

The infrared power detection circuit 5 uses NE5532 operational amplifier to form a comparator, and uses CD40106 as a Schmitt trigger to form a detection circuit, which has the advantages of high operating frequency and long detection distance.

The control module 4 is preferably a MCS-51 single-chip microcomputer.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A lawn lamp control system based on infrared induction, including: control module (4), infrared sensor (6), infrared power detection circuit (5), dimming circuit (3) and inverter (1), its The feature is that: the infrared sensor (6) is connected to the infrared power detection circuit (5), and the infrared power detection circuit (5) is connected to the control module (4); the dimming circuit (3) adopts a bidirectional thyristor stepless dimming circuit, and the output The terminal is connected to the inverter (1) pin, and the output terminal of the inverter (1) is connected to the LED light group. 2. The lawn lamp control system based on infrared induction according to claim 1, characterized in that: the control module (4) is also connected with a PWM timer (7), and the PWM timer (7) controls The terminals are connected to the electronic switch (2). 3. The lawn lamp control system based on infrared induction according to claim 2, characterized in that: the electronic switch (2) is set in the circuit connecting the inverter (1) and the dimming circuit (3) . 4. The lawn lamp control system based on infrared induction according to claim 1, characterized in that: the infrared power detection circuit (5) is composed of NE5532 operational amplifier as a comparator, and CD40106 as a Schmitt trigger detection circuit. 5. The lawn lamp control system based on infrared induction according to claim 1, characterized in that: the control module (4) is preferably a MCS-51 single-chip microcomputer.