CN204810634U - LED self -adaptation classroom lamp of adjusting luminance - Google Patents

Abstract

LED adaptive dimming classroom lights. The utility model relates to a dimming technology of LED classroom lamps, which solves the problem of inconvenient adjustment of light intensity of LED lamps in existing classrooms. The light-sensing device in the utility model transmits the sensed light-sensing signal to the intelligent controller, and the wireless terminal transmits the preset light intensity value to the intelligent controller, and the intelligent controller transmits the light intensity sensed by the light-sensing device Compared with the pre-set light intensity, according to different comparison results, the intelligent controller sends a pulse width modulation signal of 0-10V to the LED dimming driver, thereby controlling the output current of the LED dimming driver to the LED classroom lamp. In the utility model, when the light of the external environment changes, the LED classroom lamp can automatically perform intelligent adjustment to maintain a constant illuminance value of the actual environment, which not only meets the required brightness of the classroom, but also achieves the purpose of saving energy, and is suitable for classroom lighting.

Description

LED Adaptive Dimming Classroom Lights

technical field

The utility model relates to the dimming technology of an LED classroom lamp.

Background technique

According to the national "Hygienic Standards for Daylighting and Lighting of Classrooms in Primary and Secondary Schools", 11 LED classroom lights are routinely installed for classrooms with a standard area. In the process of actual promotion, due to the difference in the size of classrooms, the same number of lights arranged in the same way have great differences in different classrooms. For small classrooms, the average illuminance is high, which causes waste of energy. In large classrooms, the average illuminance is too low to meet the standard. General classroom lights cannot realize self-adaptive intelligent control, because there are different light levels in day, night, cloudy and sunny days, etc., so the brightness of classroom lights can be adjusted according to different environments or according to actual needs. It is particularly important to compensate and adjust the illuminance while making LED lamps more energy-efficient.

Utility model content

The purpose of the invention of the utility model is to provide an LED self-adaptive dimming classroom lamp in order to solve the problem of inconvenient adjustment of the light intensity of the LED lamp in the existing classroom.

LED adaptive dimming classroom lights, which include LED classroom lights, light sensing devices, intelligent controllers, LED dimming drivers, wireless terminals and wireless remote controls;

The power input end of the intelligent controller is connected with a 220V AC power supply;

The power input end of the LED dimming driver is connected to a 220V AC power supply;

The control signal output terminal of the intelligent controller is connected with the control signal input terminal of the LED dimming driver;

The light-sensing signal output end of the light-sensing device is connected with the light-sensing signal input end of the intelligent controller;

The light-sensing preset value signal output terminal of the wireless remote controller is connected to the light-sensing preset value signal input terminal of the intelligent controller through the wireless terminal;

The DC output terminal of the LED dimming driver is connected to the DC input terminal of the LED classroom lamp;

The light sensing device is used to sense the light intensity of the environment.

The beneficial effect of the utility model is that the LED classroom lights can set corresponding light brightness values according to different use environments, and the light of the external environment changes, and the LED classroom lights can automatically perform intelligent adjustment to maintain a constant illuminance value of the actual environment, which satisfies the needs of classrooms. The required brightness is achieved, and the purpose of saving energy is achieved, and the structure is simple and easy to use. The intelligent controller sends out the control signal according to the preset value of light perception, which can be realized through the existing technology.

Description of drawings

Figure 1 is a schematic diagram of LED adaptive dimming classroom lights.

Figure 2 is a schematic diagram of the control principle of LED adaptive dimming classroom lights.

Detailed ways

Specific embodiment 1: According to Fig. 1, this embodiment is described. The LED adaptive dimming classroom lamp described in this embodiment includes an LED classroom lamp 4, a photosensitive device 2, an intelligent controller 1, and an LED dimming driver. 3. Wireless terminal 5 and wireless remote controller 6;

The power input terminal of the intelligent controller 1 is connected with a 220V AC power supply;

The power input end of the LED dimming driver 3 is connected to a 220V AC power supply;

The control signal output terminal of the intelligent controller 1 is connected with the control signal input terminal of the LED dimming driver 3;

The light-sensing signal output end of the light-sensing device 2 is connected with the light-sensing signal input end of the intelligent controller 1;

The light-sensing preset value signal output end of the wireless remote controller 6 is connected with the light-sensing preset value signal input end of the intelligent controller 1 through the wireless terminal 5;

The DC output terminal of the LED dimming driver 3 is connected with the DC input terminal of the LED classroom lamp 4;

The photosensitive device 2 is used for sensing the light intensity of the environment.

Embodiment 2: This embodiment further limits the LED adaptive dimming classroom lamp described in Embodiment 1. In this embodiment, the light sensing device 2 is fixed on the surface of the LED classroom lamp 4 .

Specific embodiment three: This embodiment is to further limit the LED adaptive dimming classroom lamp described in specific embodiment one. In this embodiment, the intelligent controller 1, the wireless terminal 5 and the LED dimming driver 3 are all fixed on the LED classroom lights 4 interior or surface.

Embodiment 4: This embodiment is to further limit the LED adaptive dimming classroom lamp described in Embodiment 1. In this embodiment, the intelligent controller 1 controls the LED dimming through a pulse width modulation signal of 0-10V drive 3.

Embodiment 5: This embodiment is described in conjunction with FIG. 2. This embodiment is based on the control method for LED adaptive dimming classroom lights described in Embodiment 1. In this embodiment, the following steps are included:

Step 1: According to the light intensity required by the environment, the preset value of light perception is set by the wireless remote controller as Q, and the wireless remote controller provides the preset value of light perception Q to the wireless terminal 5;

Step 2: The wireless terminal 5 transmits the preset light sensing value Q to the intelligent controller 1;

Step 3: The photosensitive device 2 senses that the ambient light intensity value of the actual environment is W, and at the same time, the photosensitive device 2 transmits the ambient light intensity value W to the intelligent controller 1 in the form of a photosensitive signal;

Step 4: The intelligent controller 1 compares the light perception preset value Q with the actual ambient light intensity value W;

When W=Q, the intelligent controller 1 does not output the control signal;

When W<Q, the intelligent controller 1 outputs a control signal to the LED dimming driver 3. At this time, the LED dimming driver 3 increases the current to the LED classroom lamp 4, so that the actual ambient light intensity value W increases and keeps increasing. As large as the actual ambient light intensity value W is equal to the light perception preset value Q;

When W>Q, the intelligent controller 1 outputs a control signal to the LED dimming driver 3. At this time, the LED dimming driver 3 reduces the current to the LED classroom lamp 4, so that the actual ambient light intensity value W decreases and keeps decreasing. As small as the actual ambient light intensity value W is equal to the light perception preset value Q.

When W>Q, the intelligent controller 1 outputs a control signal to the LED dimming driver 3. At this time, the LED dimming driver 3 reduces the current to the LED classroom lamp 4, so that the actual light intensity value W decreases and keeps decreasing. Until the actual light intensity value W is equal to the light perception preset value Q.

Claims (4)

1. LED adaptive dimming classroom lights, which include LED classroom lights (4); It is characterized in that the LED adaptive dimming classroom lamp also includes an intelligent controller (1), an LED dimming driver (3), a wireless terminal (5), a light sensing device (2) and a wireless remote controller (6); The power input end of the intelligent controller (1) is connected with a 220V AC power supply; The power input end of the LED dimming driver (3) is connected to a 220V AC power supply; The control signal output terminal of the intelligent controller (1) is connected with the control signal input terminal of the LED dimming driver (3); The light-sensing signal output end of the light-sensing device (2) is connected with the light-sensing signal input end of the intelligent controller (1); The light-sensing preset value signal output terminal of the wireless remote controller (6) is connected to the light-sensing preset value signal input terminal of the intelligent controller (1) through the wireless terminal (5); The DC output terminal of the LED dimming driver (3) is connected with the DC input terminal of the LED classroom lamp (4); The photosensitive device (2) is used to sense the light intensity of the environment. 2. The LED adaptive dimming classroom lamp according to claim 1, characterized in that the light sensing device (2) is fixed on the surface of the LED classroom lamp (4). 3. The LED adaptive dimming classroom lamp according to claim 1 or 2, characterized in that the intelligent controller (1), the wireless terminal (5) and the LED dimming driver (3) are all fixed on the LED classroom lamp ( 4) Internal or surface. 4. The LED adaptive dimming classroom lamp according to claim 1, characterized in that the intelligent controller (1) controls the LED dimming driver (3) through a pulse width modulation signal of 0-10V.