CN202444660U - Adjustable LED (light-emitting diode) colorful atmosphere desk lamp - Google Patents

Abstract

An adjustable LED color atmosphere table lamp includes an LED base, the LED base is provided with an LED light source through an LED light pole, and an automatic induction control system is provided on the LED base, and the automatic induction control system includes a microprocessor, which is connected with a capacitor respectively. type induction touch button, automatic induction module, LED constant current drive module, automatic induction indicator light, and power supply module, and the LED constant current drive module is connected in parallel with the LED light source. When the pyroelectric infrared sensor in the automatic induction module detects When the infrared signal of the human body is detected, the voltage signal output by the pyroelectric infrared sensor is transmitted to the SN8P2522 microprocessor through the signal processing circuit, and the SN8P2522 microprocessor sends a control signal to the automatic sensing indicator light to light it up, so that the user can The position of the LED control device can be determined, and the LED can be adjusted and controlled in various modes.

Description

An adjustable LED color atmosphere desk lamp

technical field

The utility model relates to an LED color atmosphere table lamp, in particular to an adjustable LED color atmosphere table lamp.

Background technique

Compared with traditional lighting, LED lighting has many advantages such as green environmental protection, high efficiency and energy saving, high luminous efficiency, good color rendering, and easy control. Moreover, due to the limitation of the light-emitting principle of traditional light sources, its color is difficult to achieve dynamic control, and the three-color LED The advantages in color gamut make up for the shortcomings of traditional light sources. At present, the lamps mainly have few colors, monotonous colors, and cannot continuously adjust the brightness and color. At night, it is inconvenient to use because the user cannot confirm the switch position. In traditional lighting, due to the short switching time between light and dark, it is difficult for human eyes to adapt. There is a certain damage to eyesight. Traditional lighting cannot continuously adjust the brightness and color according to user needs, and cannot meet humanized needs.

The touch-sensitive detection key is a new type of key developed rapidly in recent years. It can penetrate the insulating material shell (glass, plastic, etc.), and judge the touch action of the human finger by detecting the charge movement brought by the human finger, so as to realize Key Function. Capacitive touch buttons do not require the mechanical contacts of traditional buttons, and no longer use the traditional electrode sheet to touch the human body directly in contact with the metal sheet to cause safety hazards and application limitations. The products made of capacitive sensing buttons are reliable, durable, beautiful and fashionable, and use less materials, which is convenient for production, installation and maintenance, and replaces traditional mechanical buttons, membrane switches and electrode pads.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an adjustable LED color atmosphere table lamp, which can realize adjustable control of LEDs in various modes.

In order to achieve the above object, the technical solution adopted by the utility model is:

An adjustable LED color atmosphere table lamp comprises an LED base 3, the LED base 3 is provided with an LED light source 1 through an LED light pole 2, and an automatic induction control system 4 is provided on the LED base 3.

The automatic sensing control system is mainly composed of a microprocessor, a capacitive sensing touch button, an automatic sensing module, a power supply module, an automatic sensing indicator light, an LED constant current drive module and a memory. The button, the automatic sensing module, the LED constant current driving module, the automatic sensing indicator light and the power supply module are connected, and the LED constant current driving module is connected with the LED light source.

The LED constant current drive module is composed of R constant current drive module, G constant current drive module B constant current drive module, the R constant current drive module represents the red light constant current drive module, and the G constant current drive module represents the green light constant current drive module. Drive module, B constant current drive module means blue light constant current drive module.

The LED light source is composed of LED straw hat colorful modules, including red, green and blue LEDs.

The microprocessor adopts SN8P2522.

In order to overcome the short time from light to dark, it is difficult for the human eye to adapt, and there is a certain damage to the vision, the LED light source is grouped, the LED light source is turned on group by group, and the LED light source is turned off group by group. The adjustment of the LED light source can be divided into the adjustment of brightness and color. By changing the duty cycle of the PWM control signal in the R, G, and B constant current drive modules in equal proportions, the brightness of the LED light source can be continuously adjusted. By controlling the duty cycle of the PWM control signal in the 3-way R, G, and B constant current drive modules in different proportions, the ratio of the three color components in white light can be adjusted to achieve the purpose of continuously adjustable colors.

The memory is composed of EEPROM, which is used to store custom color information and user-adjusted brightness and color information. The information will not be lost after power failure, and the data information storage function is realized.

Capacitive sensing touch buttons include R, G, B contact buttons, long sliding touch buttons with adjustable brightness, custom color wheel buttons, color tone adjustable contact buttons, memory contact buttons, and switch contact buttons.

The automatic sensing module is composed of pyroelectric infrared sensor and signal processing circuit. The sensor is connected with the signal processing circuit, and the signal processing circuit is connected with the microprocessor. The signal processing is mainly to amplify, filter, delay and compare the weak electric signal output by the pyroelectric infrared sensor. When the distance between the human body and the pyroelectric infrared sensor is within the range of the sensing distance, the pyroelectric infrared sensor transmits the infrared signal of the human body to the microprocessor through the signal processing circuit for data processing, and the microprocessor sends control to the automatic induction indicator light The signal lights it up, so that users can determine the position of the LED desk lamp in dark conditions. If within a certain delay time period, the microprocessor does not detect the touch button information, it will send a control signal to the automatic induction indicator light to extinguish it, otherwise, it will perform data processing according to the detected touch button information, so as to realize the LED light source Adjust the brightness and color accordingly.

The power supply module provides working voltage to the utility model, and is suitable for mains power input and USB input.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the automatic induction control system of the present invention.

FIG. 3 is a schematic diagram of the capacitive sensing touch button of the present invention.

Specific implementation

Structural principle of the present utility model, working principle are described further below.

An adjustable LED color atmosphere table lamp comprises an LED base 3, the LED base 3 is provided with an LED light source 1 through an LED light pole 2, and an automatic induction control system 4 is provided on the LED base 3.

The microprocessor adopts SONIX company's special single-chip microcomputer SN8P2522, which is stable in operation, simple in operation, low in cost, and low in power consumption. SN8P2522 can work in sleep mode when there is no key operation, and the minimum operating current can reach below 1μA; because the whole system is insulated The materials are separated, and the buttons are sealed to make them have strong environmental adaptability. The advantages of moisture-proof and waterproof touch buttons are more obvious, and they are irreplaceable by mechanical buttons.

When the pyroelectric infrared sensor in the automatic sensing module detects the infrared signal of the human body, the voltage signal output by the pyroelectric infrared sensor is transmitted to the SN8P2522 microprocessor through the signal processing circuit, and the SN8P2522 microprocessor sends a control signal to the automatic sensing indicator light Light it up so that the user can locate the LED controls in dark conditions.

If the user does not touch the capacitive sensing touch button within a certain delay time, the SN8P2522 microprocessor will send a control signal to the automatic sensing indicator light to extinguish it; if the user touches the capacitive sensing touch button within a certain delay time, the SN8P2522 micro The processor will analyze the function data according to the user's touch button, and send the corresponding function control signal to the LED constant current drive module. By changing the duty cycle of the PWM signal of the LED constant current drive circuit, the brightness and color of the LED light source can be adjusted. Continuously adjustable, in order to overcome the short light and dark conversion time, the human eye is difficult to adapt, and has a certain damage to vision. Therefore, the LED light source adopts the LED straw hat colorful module, and the LED straw hat colorful module is a group control module. The group and point control modules can not only control the LED light source uniformly, but also control the module at a specific point in the LED light source. After pressing the on/off key, the LEDs are turned on/off the LEDs group by group.

The capacitive touch button module includes R, G, B contact buttons, long sliding touch buttons with adjustable brightness, custom color wheel buttons, adjustable color tone buttons, memory contact buttons, and on/off contact buttons.

The custom color wheel button is responsible for the switching control of the preset color; the long strip brightness adjustable sliding touch button is responsible for the adjustment and control of the brightness, by touching the long strip brightness adjustable sliding touch button of the hue, the R, G, and B constants can be controlled in equal proportions. The duty ratio of the PWM control signal in the streaming drive module is adjusted to realize the continuous adjustment function of the brightness; the color tone adjustable contact button is responsible for the switching control of the color tone. By touching the color tone adjustable contact button, it can realize cool color tone, The adjustment function of medium tone and warm tone can create different atmosphere effects to meet human needs; R, G, and B contact buttons control the duty cycle adjustment of PWM control signals in the R, G, and B constant current drive modules respectively, according to user requirements. It is required to realize the function of three-way color adjustment separately; the memory contact button controls the storage of the LED brightness and color data adjusted by the user, and can realize the brightness and color reproduction function; the on/off contact button controls the LED light source to turn on and off .

The memory stores user-defined color information and user-adjustable brightness and color information, and users can display user-defined colors by touching the user-defined color wheel button. By touching the memory button, the memory function of brightness and color can be realized, and the brightness and color can be reproduced.

General description of the system:

The utility model relates to a touch-adjustable LED color atmosphere desk lamp. Different modes can be selected through capacitive touch buttons, including four modes: continuous brightness adjustment mode, custom color switching mode, adjustable color tone mode, and three-way color sub-adjustment mode. . In different modes, the brightness and color of the LED light source can be continuously adjusted, and the color tone can be switched to meet the needs of humanized design. To meet the user's demand for color, make full use of the three-color light mixing principle of LED, give full play to the color gamut advantage of LED, and realize the colorful atmosphere lighting. The design of the automatic sensing module of the utility model is convenient for the user to determine the position of the LED desk lamp at night. The utility model adopts the capacitive sensing button to design the product which is reliable, durable, beautiful and fashionable, and uses less materials, which is convenient for production, installation and maintenance, and replaces the traditional machine. Button key, membrane switch and electrode pad touch. The utility model is environmentally friendly, energy-saving, dynamic and fashionable, can realize atmosphere lighting, and conforms to the new concept of humanized design.

Claims (5)

1. the colored atmosphere desk lamp of adjustable LED comprises LED base (3), and LED base (3) is provided with led light source (1) through LED lamp stand (2), it is characterized in that, said LED base (3) is provided with automatic induction control system (4).

2. the colored atmosphere desk lamp of a kind of adjustable LED according to claim 1; It is characterized in that; Said automatic induction control system (4) mainly by microprocessor, capacitive induction touch controlled key, automatically induction module, power module, respond to indicator light, LED constant-current driven module and memory automatically and form; Microprocessor respectively with the capacitive induction touch controlled key, automatically induction module, LED constant-current driven module, respond to indicator light automatically, power module links to each other, said LED constant-current driven module is connected with led light source.

3. the colored atmosphere desk lamp of a kind of adjustable LED according to claim 2; It is characterized in that; Said LED constant-current driven module is made up of R constant-current driven module, G constant-current driven module B constant-current driven module; Said R constant-current driven module is represented the red light constant-current driven module, and the G constant-current driven module is represented the green light constant-current driven module, and the B constant-current driven module is represented blue lamp constant-current driven module.

4. the colored atmosphere desk lamp of a kind of adjustable LED according to claim 1 and 2 is characterized in that said led light source is made up of LED straw hat seven color modules, comprises redness, green and blue led.

5. the colored atmosphere desk lamp of a kind of adjustable LED according to claim 2 is characterized in that said microprocessor adopts SN8P2522.

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