WO2012171192A1

WO2012171192A1 - An automatic light adjusting courtyard lamp

Info

Publication number: WO2012171192A1
Application number: PCT/CN2011/075790
Authority: WO
Inventors: 傅创业; 程世友
Original assignee: 浙江晶日照明科技有限公司
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-12-20

Abstract

An automatic light adjusting courtyard lamp includes a light source (2), an adjusting device for controlling the light source (2), a main controller for controlling the adjusting device and a sensing device for monitoring the environment. The light source (2) includes at least two primary color light sources and a light mixing device to mix the light emitted from the primary color light sources, the adjusting device includes at least two brightness adjusters to adjust the primary color light sources respectively. The lamp can regulate color temperature according to environmental temperature to emit light with high color temperature when environmental temperature is high and light with low color temperature when environmental temperature is low, thus making users feel comfortable.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminated garden light, and more particularly to an automatic dimming garden light. BACKGROUND OF THE INVENTION Conventional lighting garden lights often only emit a color temperature light, in the cold winter, such as color temperature comparison

High, it will cause the body's discomfort, making people feel more cold; in the hot summer, if the color temperature is low, Ming 1

It can cause people's irritability and feel more stuffy.

Book

Patent No. 200910036845. 5 discloses a color temperature adjustable LED lamp and a color temperature adjusting method thereof. The LED lamp comprises an LED lamp group and a color temperature adjusting device, and the color temperature adjusting device comprises a DMX512 console, a circuit board, and the LED The lamp group includes LED light bodies of different colors or color temperatures, and the circuit board is provided with a CPU, and the CPU is respectively connected to the control panel, the display module, the storage, the DMX512 console, the LED lamp group; the control panel is provided There is an assignment button for assigning values to the CPU. The read/write mode of the memory is changed, and the CPU can read and write the memory, and the brightness value of the LED light body in the LED group is driven as a preset value or a modified value by using an assignment button on the control panel. Therefore, the overall color temperature of the LED lamp is changed. The patent uses LED light groups of different color temperatures to increase the brightness of the LED light group with high color temperature, and reduce the brightness of the LED light group with low color temperature, the color temperature of the light is increased, and vice versa, the color temperature of the light is increased. The color temperature adjustment range of the patent is small, the overall brightness adjustment is difficult, the adjustment requires manual intervention, the accuracy is poor, and the use is inconvenient. SUMMARY OF THE INVENTION The present invention is to solve the problems of the prior art, and provides a dimming garden lamp that can automatically color temperature, brightness, and comfort. The technical solution of the present invention is: an automatic dimming garden lamp, comprising a light source, an adjusting device for controlling the light source, a main controller for controlling the adjusting device, and an sensing device for monitoring the environment; wherein the light source comprises at least two primary color light sources and Mixing light from the primary color source Description

Light mixing device

The adjusting device comprises at least two brightness adjusters for respectively adjusting the brightness of the primary light source; the main controller includes a connection with the sensing device for reading data from the sensing device, converting the data into a format recognizable by the computing device And an identification device that is input to the computing device, and an arithmetic device connected to the identification device for receiving data input by the identification device, performing an operation and transmitting the operation result to the command device, and being connected to the adjusting device for receiving the computing device data, Converting the operation result into an instruction device recognizable by the adjustment device and transmitting the instruction to the instruction device of the adjustment device;

The sensing device includes a temperature sensor and a body sensor.

The light emitted by the light source is generated by mixing the light emitted by several primary color light sources through the light mixing device, and the brightness of each mixed color light source is adjusted by the adjusting device to adjust the color temperature and brightness of the mixed light; the temperature sensor senses the environment of the garden light The temperature generates an analog signal, and sends an analog signal with a temperature parameter to the identification device. The identification device is generally an analog-to-digital converter, and the identification device converts the analog signal with the temperature parameter into a digital signal recognizable by the arithmetic device. The arithmetic unit calculates the digital signal to obtain the color temperature value that the human body feels most comfortable at this temperature, and calculates the color temperature value again to obtain the brightness value required for each primary color light source, and transmits the brightness value to the command device. The command device converts the brightness value into a brightness signal recognizable by the brightness adjuster, and respectively sends it to each brightness adjuster, and after receiving the brightness signal, the brightness adjuster adjusts the light of the corresponding color light source to emit corresponding brightness, and the light emitted by all the primary color light sources After mixing light, the light of the appropriate color temperature is formed; When the ambient temperature rises, the color temperature of the light of the main controller controlling the garden light increases. When the ambient temperature decreases, the color temperature of the light of the main controller controlling the garden light decreases; the human body sensor senses whether anyone is using the garden light around the garden light. When there is someone around the garden light, the courtyard light increases the brightness. When there is no one around the garden light, the garden light reduces the brightness to save energy.

Preferably, the primary color light sources are three, and are respectively a first primary color light source, a second primary color light source, and a third primary color light source. Instruction manual

Preferably, the first primary color light source, the second primary color light source, and the third primary color light source are a green light source, a blue light source, and a red light source, respectively.

The light emitted by these three primary color sources can be mixed to form light of any color and color temperature by adjusting different brightness ratios, and the applicable temperature range is extremely wide.

Preferably, the first primary color light source, the second primary color light source, and the third primary color light source are LED light sources. Compared with other light sources, the LED light source emits light with better monochromaticity and is easier to mix light.

Preferably, the adjusting device adjusts the brightness of the first primary color light source, the second primary color light source, and the third primary color light source by a PWM method. In the occasion where the courtyard light is located, a considerable part of the environment is relatively harsh, and there is a high possibility of various disturbances. The automatic adjustment function of the garden light cannot be realized. The main controller uses PWM pulse width modulation to adjust the brightness of the LED light source. The digital signal calculated by the operator does not need to be converted into an analog signal, and the signal does not cause misregulation of the regulator due to the presence of noise, and the anti-interference ability is strong.

Preferably, the light source further includes detecting means connected to the arithmetic means, and the detecting means detects the light mixed by the light mixing means and transmits the data to the arithmetic means. The detecting device detects the color temperature and brightness of the mixed light, and then sends the data to the computing device. The computing device compares the data with the data inside the computing device to determine whether the light emitted by the garden lamp meets the requirements, and if not, the operation is performed. The device is then adjusted by means of an adjustment device.

Preferably, the sensing device further comprises a brightness sensor. The brightness sensor senses the brightness around the garden light and adjusts the brightness of the light from the garden light based on the surrounding brightness.

Preferably, the human body sensor is a microwave sensor, an infrared sensor, a voice sensor or a body thermal sensor.

Preferably, a light pole is further mounted on a lower portion of the garden light, and the sensing device is mounted on a lower portion of the light pole. The temperature sensor is mounted on the lower part of the pole to reduce the environment, especially the light and temperature of the lamp itself interfere with the sensor. Preferably, the lower portion of the lamp post is further provided with a display device for displaying temperature, and the display device is connected to the temperature sensor. The user can conveniently view the display device located at the lower portion.

In summary, the present invention has the following advantages:

1. The color temperature of the garden lamp can be adjusted according to the ambient temperature. When the temperature is high, the light of high color temperature is emitted. When the temperature is low, the light of low color temperature is emitted, so that the person who uses the user feels comfortable;

2. The brightness of the garden light can be adjusted according to the brightness of the environment. When the environment is bright, the garden light reduces the brightness or turns off. When the environment is dark, the garden light turns on or increases the brightness;

3. It can sense whether there is a user near the garden light. When there is no user around the garden light, the garden light is lowered or turned off. When there is a user around the garden light, the garden light is turned on or the brightness is increased. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of the first embodiment; FIG. 2 is a schematic view of the operation of the first embodiment. In the figure, 1, light pole, 2, light source, 3, brightness sensor, 4, liquid crystal display, 5, microwave sensor, 6, temperature sensor, 7, human body.

detailed description

The invention will now be further described by way of examples.

Embodiment 1:

An automatic dimming garden lamp, as shown in FIG. 1 and 2, includes a light source 2 mounted on the lamp post 1, an adjusting device for controlling the light source 2, a main controller for controlling the adjusting device, and an sensing device for monitoring the environment; wherein The light source 2 includes a light mixing device and three primary color light sources, and the three primary color light sources are green LED particles, blue LED particles, and red LED particles, and the light emitted by the three primary color light sources 2 are all mixed by the light mixing device; The device comprises three brightness adjusters, each brightness adjuster is respectively connected with a primary color light source and the brightness of the primary color light source is adjusted by PWM; the main controller comprises an identification device connected to the sensing device, an arithmetic device connected to the identification device, and Instructing device connected to the adjusting device; sensing device The utility model comprises a temperature sensor 6 installed at the lowermost portion of the lamp pole 1 , a microwave sensor 5 mounted on the temperature sensor 6 for sensing the human body 7 and a brightness sensor 3 mounted on the upper part of the lamp pole 1 ; the light source 2 further comprises an operation a detecting device connected to the device, the detecting device detecting the light mixed by the light mixing device, and transmitting the data to the computing device; the light pole 1 is located at a position equal to the height of the human eye and further mounted with the liquid crystal display 4 connected to the temperature sensor 6 .

During operation, the sensing device senses the surrounding environment and converts the surrounding environmental conditions into electrical signals. The identification device reads the signal data from the sensing device and converts the data into a format recognizable by the computing device to be transmitted to the computing device, and the computing device receives After the data, the operation of Ming 5 is required. When the surrounding environment is bright, the garden light needs to be turned off. When the surrounding environment is dark, the garden light needs to be turned on. When there is no one around, the garden light needs to be turned off. When someone is close, the garden light needs to be turned on. According to the distance between the person and the garden lamp, the brightness of the garden lamp is increased gradually. When the ambient temperature changes, the color temperature of the light emitted by the garden lamp needs to be changed, so that the light emitted by the garden lamp always makes the user feel most comfortable, and the operation device will calculate the operation result. Delivered to the command device, the command device converts the received operation result into an instruction recognizable by the adjusting device, and sends the command to the adjusting device, the adjusting device adjusts the brightness of the light source according to the command, and the detecting device detects the light emitted by the light source, and The brightness, color temperature and other parameters of the light are converted into detection The signal is sent to the arithmetic device, and the arithmetic device compares the detected signal with the calculated result. If not, the arithmetic device adjusts the calculation result according to the detection signal so that the light emitted by the light source meets the requirements.

When the brightness sensor senses that the surrounding environment is bright, the courtyard light turns off the light source; when the brightness sensor senses that the surrounding environment is dark, the microwave sensor starts, and when the surrounding person is sensed, the garden light continues to turn off the light source. When the proximity of someone is approached, the temperature sensor is activated, the ambient temperature is sensed, the temperature value is displayed through the display device, and the temperature value is transmitted to the main controller, and the main controller controls the light source to emit light of a corresponding color temperature, and the detecting device detects the light source. The emitted light transmits parameters such as brightness and color temperature of the light to the main controller, and the main controller adjusts the light source further by these parameters; when the ambient temperature rises, the main controller controls the color temperature of the light source to rise, when the environment When the temperature drops, the main controller controls the color temperature of the light source to decrease.

Embodiment 2:

An automatic dimming garden lamp, comprising a light source, an adjusting device for controlling the light source, and a control adjusting device The main controller and the sensing device for monitoring the environment; wherein, the light source comprises a light mixing device and four primary color light sources, and the four primary color light sources are green light beads, blue light beads, red light beads and yellow light beads, and four primary color light sources. The emitted light is mixed by the light mixing device and emitted; the adjusting device comprises four brightness adjusters, each brightness adjuster is respectively connected with a primary color light source and the brightness of the primary color light source is adjusted by the voltage level; the main controller comprises the sensing device a connection identification device, an operation device connected to the identification device, and an instruction device connected to the adjustment device; the induction device is installed in a lower part of the garden lamp, and includes a temperature sensor, a brightness sensor, and a body heat sensor for sensing the human body; the light source further includes a detecting device connected to the computing device, the detecting device detecting the light mixed by the light mixing device, and transmitting the data to the computing device; the garden light is further equipped with an LED digital display connected to the temperature sensor.

Claims

Claim

1. An automatic dimming garden lamp, comprising: a light source, an adjusting device for controlling the light source, a main controller for controlling the adjusting device, and an sensing device for monitoring the environment;

Wherein the light source comprises at least two primary color light sources and a light mixing device that mixes the light emitted by the primary color light sources;

The sensing device includes a temperature sensor and a body sensor.

2. The automatic dimming garden lamp according to claim 1, wherein: the primary color light sources are three, respectively being a first primary color light source, a second primary color light source, and a third primary color light source.

3. The automatic dimming garden lamp according to claim 2, wherein: the first primary color light source, the second primary color light source, and the third primary color light source are a green light source, a blue light source, and a red light source, respectively.

The automatic dimming garden lamp according to claim 2 or 3, wherein the first primary color light source, the second primary color light source, and the third primary color light source are LED light sources.

The automatic dimming garden lamp according to claim 1, wherein: the adjusting device adjusts brightness of the first primary color light source, the second primary color light source, and the third primary color light source by a PWM method.

6. The automatic dimming garden light according to claim 5, wherein: said light source further comprises detecting means connected to said arithmetic means, said detecting means detecting light mixed by said light mixing means, and Transfer data to the computing device.

7. The self-dimming garden light according to claim 1, wherein: said sensing device further Claim

Includes brightness sensor.

8. The self-dimming garden light according to claim 1, wherein: the human body sensor is a microwave sensor, an infrared sensor, a voice sensor or a body heat sensor.

9. The self-dimming garden light according to claim 1 or 8, wherein: a light pole is further mounted on a lower portion of the garden light, and the sensing device is mounted on a lower portion of the light pole.

The automatic dimming garden lamp according to claim 9, wherein: the lower portion of the lamp post is further provided with a display device for displaying temperature, and the display device is connected to the temperature sensor.