WO2018223567A1

WO2018223567A1 - Automatic colour temperature adjusting method and device, and lamp mirror

Info

Publication number: WO2018223567A1
Application number: PCT/CN2017/104574
Authority: WO
Inventors: 霍东建
Original assignee: 广州视源电子科技股份有限公司; 广州睿鑫电子科技有限公司
Priority date: 2017-06-05
Filing date: 2017-09-29
Publication date: 2018-12-13
Also published as: CN107172745A; CN107172745B

Abstract

An automatic colour temperature adjusting method and device, and a lamp mirror. The automatic colour temperature adjusting device (1) comprises a first luminous body group (10), a second luminous body group (11), a first control module (12), a second control module (13), an MCU (14), a brightness sensor (15) and an RGB sensor (16). The first luminous body group and the second luminous body group have different colour temperatures; the brightness sensor is used for acquiring the brightness of a common environment where the first luminous body group and the second luminous body group are located, and sends the acquired brightness information to the MCU; the RGB sensor is used for acquiring the colour temperatures of the common environment where the first luminous body group and the second luminous body group are located, and sends the acquired colour temperature information to the MCU; and the MCU is used for performing brightness and colour temperature adjustments on the first luminous body group by means of the first control module and performing brightness and colour temperature adjustments on the second luminous body group by means of the second control module, according to the brightness information and the colour temperature information. The beneficial effects of automatically adjusting the brightness and colour temperatures and reducing power consumption can be achieved.

Description

Color temperature automatic adjustment method, device and lamp mirror

Technical field

The present invention relates to the field of smart device technologies, and in particular, to a color temperature automatic adjustment method, device and a light mirror.

Background technique

In the existing mirror products, in the case where the environment of the mirror is relatively dark, light is added by adding a light behind the mirror to increase the brightness of the image, but since the brightness of the environment is constantly changing, this may result in the mirror. If the brightness of the installed lamp is too large or too small, install a lamp with a small brightness, which will seriously affect the user experience in the case of a dark environment. In addition to the brighter environment, the natural light itself is brighter. The poor user experience caused by mirroring the mirror is also a waste of electrical energy.

Summary of the invention

The object of the embodiments of the present invention is to provide a method, a device and a lamp mirror for automatically adjusting the color temperature, which can automatically adjust the brightness and color temperature of the illuminant according to environmental information, thereby improving the intelligence degree of the product.

To achieve the above object, an embodiment of the present invention provides a color temperature automatic adjustment device, including a first illuminant group, a second illuminant group, a first control module, a second control module, and an MCU (Microcontroller Unit). a brightness sensor and RGB (Red, Green, Blue, red, green, blue, RGB color mode) sensors; the first illuminant group and the second illuminant group have different color temperatures;

The brightness sensor is configured to acquire brightness of a common environment in which the first illuminant group and the second illuminant group are located, and send the acquired brightness information to the MCU; the RGB sensor is configured to acquire the a color temperature of a common environment in which the illuminant group and the second illuminant group are located, and the acquired color temperature information is sent to the MCU;

The MCU is configured to perform brightness and color temperature adjustment on the first illuminant group by using the first control module according to the brightness information and the color temperature information, and to use the second control module to perform the second illuminating The body group performs brightness and color temperature adjustment.

Compared with the prior art, the color temperature automatic adjusting device disclosed in the present invention acquires brightness information and color temperature information of a common environment where the first illuminant group and the second illuminant group are located by using a brightness sensor and an RGB sensor, and the MCU is based on the brightness described above. The information and the color temperature information are adjusted by the first control module to adjust the brightness of the first illuminant group and the second illuminant group automatically adjusts the brightness and the color temperature by the second control module, thereby solving the problem that the prior art cannot follow the environment information. The problem of automatically adjusting the brightness and color temperature of the illuminator is obtained, and the beneficial effect of automatically adjusting the brightness and color temperature of the illuminator with the environmental information is obtained.

Preferably, the color temperature information includes a color temperature value, and the brightness information includes a brightness value;

The MCU is configured to perform a first operation when the color temperature value is less than a first preset value, perform a second operation when the color temperature value is greater than a second preset value, and the color temperature value is not less than the first pre- And performing a third operation when the value is not greater than the second preset value; the second preset value is greater than the first preset value;

The first operation is: the MCU sets the first illuminant group to an on state by the first control module, and uses the first control module to perform the first illuminating according to the brightness value. Adjusting a current brightness of the body group to a target brightness, and setting the second illuminant to an off state by the second control module;

The second operation is: the MCU sets the second illuminant group to an on state by the second control module, and uses the second control module to set the second illuminant group according to the brightness value. Adjusting the current brightness to the target brightness, and setting the first illuminant group to an off state by the first control module;

The third operation is: the MCU sets the first illuminant group to an open state by using the first control module, and sets the second illuminant group to an open state by using the second control module, And the first illuminant is respectively passed by the first control module and the second control module according to the brightness value The current blending brightness of the group and the second group of illuminants is adjusted to the target brightness.

Preferably, the color temperature automatic adjustment device further includes a touch control module, the touch control module is configured to receive touch operation information including a brightness value and a color temperature value input by the user, and send the touch operation information to the MCU;

The MCU is further configured to perform brightness and color temperature adjustment on the first illuminant group by using a first control module according to the brightness value and the color temperature value included in the touch operation information, and by using the second control module The second illuminant group performs brightness and color temperature adjustment.

Preferably, the color temperature automatic adjusting device further includes a storage module, wherein the storage module stores a brightness value-screen brightness value correspondence table, and the MCU is configured to search the brightness value-screen brightness value correspondence table according to the brightness value. Obtaining a screen brightness value corresponding to the brightness value, and adjusting the first illuminant group and/or the second illuminant group to a target brightness according to the screen brightness value, where the target brightness is the screen The brightness corresponding to the brightness value.

Preferably, the first illuminant group comprises at least one LED (Light Emitting Diode) light that emits white light, and the second illuminant group includes at least one illuminating white light LED lamp.

The embodiment of the invention further provides a method for automatically adjusting the color temperature, the method comprising the following steps:

Obtaining brightness information and color temperature information of a common environment in which the first illuminant group and the second illuminant group are located; wherein the first illuminant group and the second illuminant group have different color temperatures;

Adjusting brightness and color temperature of the first illuminant group by the first control module according to the obtained brightness information and the color temperature information, and adjusting brightness and color temperature of the second illuminant group by using a second control module .

The color temperature automatic adjustment method provided by the embodiment of the present invention obtains the color temperature information and the brightness information of the common environment where the first illuminant group and the second illuminant group are located, and passes the first control module to the first illuminating according to the color temperature information and the brightness information. The brightness and color temperature of the body group are automatically adjusted and the color temperature is adjusted, and the brightness and color temperature of the second illuminant group are automatically adjusted by the second control module, thereby realizing automatic information with the environment The beneficial effects of adjusting the brightness and color temperature of the illuminant.

Adjusting, by the MCU, information about brightness and color temperature of the first illuminant group by the first control module according to the acquired brightness information and color temperature information, and adjusting brightness of the second illuminant group by the second control module The color temperature step also includes:

The MCU performs a first operation when the color temperature value is less than a first preset value, performs a second operation when the color temperature value is greater than a second preset value, and the color temperature value is not less than a first preset value And performing a third operation when the value is not greater than the second preset value; the second preset value is greater than the first preset value;

The first operation is: the MCU sets the first illuminant group to an on state by using a first control module, and sets a current of the first illuminant group by using a first control module according to the brightness value. Adjusting the brightness to the target brightness, and setting the second illuminant to an off state by the second control module;

The third operation is: the MCU sets the first illuminant group to an open state by using the first control module, and sets the second illuminant group to an open state by using the second control module, And adjusting, according to the brightness value, the current mixed brightness of the first illuminant group and the second illuminant group to the target brightness by the first control module and the second control module, respectively.

The embodiment of the invention further provides a light mirror, comprising a mirror body and the color temperature automatic adjusting device; the mirror body is provided with a light transmitting region, and the first illuminant group and the second illuminant group are both The light transmissive regions are oppositely disposed, and an irradiation direction of the illuminants of the first illuminant group and the second illuminant group faces the light transmissive region.

The lamp mirror provided by the embodiment of the invention sets the first illuminant group and the second illuminant group to be transparent The light source of the area and the color temperature automatic adjusting device sense the common environment information of the light mirror in real time, and automatically adjust the brightness and color temperature of the light body according to the environmental information, thereby realizing the beneficial effect of automatically adjusting the brightness and color temperature of the mirror surface of the mirror body of the light mirror. .

Preferably, the mirror body is provided with a touch screen, and the touch screen is integrally formed with the mirror surface of the mirror body; the touch screen is used for acquiring a touch operation of the user, and transmitting the acquired touch operation information to the touch control module.

Preferably, the lamp mirror further includes a housing, an FPC (Flexible Printed Circuit) board, and a light guide plate, the housing is fixedly disposed on the mirror body and covers the light transmissive area, An illuminant group and the second illuminant group are disposed on the FPC board, and the light guide plate is disposed between the FPC board and the light transmissive area.

Preferably, the first illuminant group includes at least one LED light that emits warm white light, the second illuminant group includes at least one chilled white LED lamp; the warm white LED lamp and the chiller The white light LED lights are evenly disposed on the FPC board.

Preferably, the lamp mirror further includes a diffuser plate and an EVA (Ethylene-vinyl Acetate Copolymer) foam, and the diffuser plate is disposed between the light transmitting region and the light guide plate. The EVA foam is disposed on an inner sidewall of the outer casing; the mirror body is further coated with a specular reflective material, and a region where the specular reflective material is applied is located on a side of the mirror body on which the outer casing is disposed.

DRAWINGS

1 is a schematic structural view of a color temperature automatic adjusting device in Embodiment 1 of the present invention.

2 is a schematic structural view of a color temperature automatic adjusting device in Embodiment 3 of the present invention.

3 is a schematic diagram showing the circuit structure of a first control module and a second control module in Embodiment 3 of the present invention.

4 is a schematic structural view of a color temperature automatic adjusting device in Embodiment 4 of the present invention.

Figure 5 is a flow chart showing a method of automatically adjusting the color temperature in Embodiment 5 of the present invention.

Figure 6 is a schematic view showing the structure of a lamp mirror in Embodiment 6 of the present invention.

Fig. 7 is a schematic view showing another structure of a lamp mirror in Embodiment 6 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example 1

1 is a schematic structural view of a color temperature automatic adjusting device according to Embodiment 1 of the present invention.

The color temperature automatic adjusting device 1 includes a first illuminant group 10, a second illuminant group 11, a first control module 12, a second control module 13, an MCU 14, a brightness sensor 15, and an RGB sensor 16, the first illuminant group 10 and the second illuminant group 11 have different color temperatures, and the brightness sensor 15 is configured to acquire the brightness of the common environment where the first illuminant group 10 and the second illuminant group 11 are located, and obtain the obtained The brightness information is sent to the MCU 14 , and the RGB sensor 16 is configured to acquire a color temperature of a common environment in which the first illuminant group 10 and the second illuminant group 11 are located, and send the acquired color temperature information to the MCU 14 The MCU 14 is configured to perform brightness and color temperature adjustment on the first illuminant group 10 by using the first control module 12 according to the brightness information and the color temperature information, and through the second control module 13 The second illuminant group 11 performs brightness and color temperature adjustment.

It should be noted that the first illuminant group 10 and the second illuminant group 11 have different color temperatures, and the color temperature may be a single color temperature value, or may be a color temperature range including a plurality of color temperature values, wherein different color temperatures are Due to the different physical properties of the first illuminant group 10 and the second illuminant group 11 themselves.

Specifically, the color temperature automatic adjusting device 1 of the embodiment of the present invention passes the brightness sensor 15 and RGB The sensor 16 respectively acquires the brightness and the color temperature, and the MCU 14 performs brightness and color temperature adjustment on the first illuminant group 10 through the first control module 12 and the second illuminant group 11 through the second control module 13 according to the acquired brightness information and color temperature information, respectively. Brightness and color temperature adjustments are made to achieve the benefits of automatic adjustment of brightness and color temperature.

Example 2

The color temperature automatic adjusting device 1 of the present embodiment is further improved on the basis of the first embodiment, and the improvement is as follows:

The color temperature information includes a color temperature value, and the brightness information includes a brightness value; the MCU 14 is configured to perform a first operation when the color temperature value is less than a first preset value, when the color temperature value is greater than a second preset value Performing a second operation, and performing a third operation when the color temperature value is not less than the first preset value and not greater than the second preset value; the second preset value is greater than the first preset value; wherein The first operation is: the MCU 14 sets the first illuminant group 10 to an on state through the first control module 12 and passes the first illuminant through the first control module 12 according to the brightness value. The current brightness of the group 10 is adjusted to the target brightness, and the second illuminator 11 is set to the off state by the second control module 13; the second operation is: the MCU 14 passes the second control module Setting the second illuminant group 11 to an on state and adjusting the current brightness of the second illuminant group 11 to the target brightness by the second control module 13 according to the brightness value, and passing the a control module 12 sets the first illuminant The third operation is: the MCU 14 sets the first illuminant group 10 to an open state by the first control module 12, and the second control module 13 The two illuminant groups 11 are set to an open state, and the first illuminant group 10 and the second illuminant group are respectively passed through the first control module 12 and the second control module 13 according to the brightness values. The current blending brightness of 11 is adjusted to the target brightness.

Specifically, the first illuminant group 10 includes at least one LED light that emits warm light, and/or the second illuminant group 11 includes at least one chilled white light LED lamp, wherein the warming light is The color temperature of the LED lamp is different from that of the illuminating LED lamp. For example, the color temperature of the LED lamp that emits warm white light can be 2600K～3700K, or only 3000K, the color temperature of the chilled white LED lamp can be 5000K～10000. The color temperature of the illuminant is related to the inherent physical properties of the illuminator, and is not limited to the above. A narrative.

When the first illuminant group 10 is an LED group that emits warm light, the second illuminant group 11 is a luminescent LED group, and the first preset value is 3000K, and the second preset value is 5000K, The process of automatically adjusting the color temperature and brightness of the first illuminant group 10 and the second illuminant group 11 is as follows:

The brightness sensor 15 and the RGB sensor 16 respectively acquire the color temperature and brightness of the common environment in which the first illuminant group 10 and the second illuminant group 11 are located, and the MCU 14 acquires the color temperature information and the brightness information sent by the brightness sensor 15 and the RGB sensor 16, and the color temperature. The information includes a color temperature value, and the brightness information includes a brightness value.

When the color temperature value is less than 3000K, the MCU 14 sets the LED group of the warming light to the on state through the first control module 12, and sets the illuminating LED group to be turned off by the second control module 13. The state, and the current brightness of the LED group of warming light is adjusted to the target brightness by the first control module 12 according to the brightness value. Since the color temperature is less than 3000K, that is, the user prefers a warmer color environment, the color temperature is adjusted to a warmer color by the LED light group that automatically turns on the warm light, and the brightness is automatically adjusted. If the environment is dark, the tone is adjusted. Brighter, if the environment is brighter, dim it.

When the color temperature value is greater than 5000K, the MCU 14 sets the luminescent LED group to an on state through the second control module 13, and the warming LED through the first control module 12. The light group is set to an off state, and the current brightness of the luminescent LED light group is adjusted to the target brightness by the second control module 13 according to the brightness value. Since the color temperature is greater than 5000K, that is, the user prefers a cold color tone environment, the color temperature is adjusted to a cool color by automatically turning on the illuminating LED light group, and the brightness is automatically adjusted. If the environment is dark, the brightness is brightened. Some, if the environment is bright, dim a bit.

When the color temperature value is not less than 3000K and not more than 5000K, the MCU 14 sets the LED group of the warming light to an on state through the first control module 12, and the second control module 13 The illuminating LED light group is set to an on state, and the LED light group and the hair that emits warm light are respectively passed through the first control module 12 and the second control module 13 according to the brightness value. The current blending brightness of the cool LED set is adjusted to the target brightness. Since the color temperature is between 3000K and 5000K, it indicates that the customer prefers neutral color. Therefore, the LED light group and the luminescent LED light group that turn on the warm light are simultaneously turned on, and the ambient color is mixed into a neutral color tone, and the warm light is adjusted. The LED light group and the luminescent LED light group adjust the current brightness or the current mixed brightness to the target brightness.

The first illuminant group 10 and the second illuminant group 11 are controlled by the brightness and color temperature acquired by the brightness sensor 15 and the RGB sensor 16 in real time, thereby realizing automatic adjustment of the brightness and color temperature of the environment, which can greatly save work. Consumption, and improve the user experience.

In addition, the first control module 12 and the second control module 13 are configured to drive the illuminating and warming LED lamp group and the luminescent LED lamp group according to the control instruction of the MCU 14. As shown in FIG. 2, the control circuit of the first control module and/or the second control module can be implemented by using the circuit shown in the figure.

Specifically, the first control module 12 and the second control module 13 each include an LED driving chip U28, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, and a capacitor C4. Inductor L1 and Zener diode D1.

The VIN pin of the LED driver chip U28 is connected to the power source Power_in, the first pin of the capacitor C1 is electrically connected to the VIN pin of the LED driver chip U28, and the second pin of the capacitor C1 is connected to the GND.

The first pin of the resistor R1 is electrically connected to the first pin of the resistor R2, and the second pin of the resistor R2 is electrically connected to the FB pin of the LED driver chip U28, the capacitor C4 The first pin is electrically connected to the first pin of the first resistor, the second pin of the capacitor C4 is connected to the GND, the first pin of the resistor R3 and the FB pin of the LED driving chip U28 The second pin of the resistor R3 is electrically connected to the first pin of the resistor R4, and the second pin of the resistor R4 is connected to the GND.

The anode of the Zener diode D1 is electrically connected to the SW pin of the LED driving chip U28, the cathode of the Zener diode D1 is electrically connected to the first pin of the capacitor C2, and the second of the capacitor C2 is Lead The first pin of the inductor L1 is electrically connected to the VIN pin of the LED driver chip U28, and the second pin of the inductor L1 is electrically connected to the SW pin of the LED driver chip U28. The GND pin of the LED driver chip U28 is connected to the GND, the first pin of the capacitor C3 is electrically connected to the COMP pin of the LED driver chip U28, and the second pin of the capacitor C3 is connected to the GND.

Wherein, the connection node of the Zener diode D1 and the capacitor C2 is a heating light LED lamp group or a luminescent LED lamp group power supply positive LED1+, and the connection node of the resistor R3 and the resistor R4 is a warm light LED lamp group or a hair The cold LED LED group is powered by the negative LED1-. Wherein, Vout is a voltage output end of the first control module or the second control module, Vin is a voltage input end of the first control module or the second control module, and a second pin of the resistor R1 is configured to receive a brightness adjustment signal sent by the MCU LED1_PWM, the CTRL pin of the LED driver chip is used to receive the LED1_EN signal sent by the MCU14 for controlling the turning on or off of the LED light group that emits warm light or the LED light group that emits cold light.

Further, the brightness adjustment signal LED1_PWM is a current signal with adjustable duty ratio for adjusting the current of the LED lamp group. When the duty ratio of the brightness adjustment signal LED1_PWM is 0%, the input voltage Vin is 0V, when the duty is occupied. When the ratio is 100%, the input voltage Vin is 3.3V, and the voltage value of the input voltage Vin can be selected according to the actual circuit. Here, for example only, it is not limited thereto. The resistor R1 and the capacitor C4 form a filter circuit for converting the brightness adjustment signal LED1_PWM from a square wave signal to a direct current signal.

When the brightness adjustment signal LED1_PWM has a duty ratio of 0%, Vin is 0V, and the resistor R1 and the resistor R2 are connected in series. According to: (Vfb-Vin) / (R1 + R2) = (Vout - Vfb) / R3, Vout = Vfb+Vfb*R3/(R1+R2), at this time, the current through the LED lamp group is the largest, and the maximum current Imax=Vout/R4, where Vfb is the feedback voltage of the FB pin of the LED driver chip, R1, R2, R3 respectively It is the resistance value corresponding to the resistor R1, the resistor R2, and the resistor R3.

When the brightness adjustment signal LED1_PWM has a duty ratio of 100%, then Vin=3.3V*100%=3.3V, and the resistor R1 is connected in series with the resistor R2 according to: (Vin-Vfb)/(R1+R2)=(Vfb -Vout)/R3, get: Vout=Vfb-(Vin-Vfb)*R3/(R1+R2), at this time, the current through the LED lamp group is the smallest, the minimum current Imin=Vout/R4, and R4 is the corresponding to the resistor R4. resistance.

When the brightness adjustment signal LED1_PWM has a duty ratio greater than 0% and less than 100%, the current of the LED lamp group varies between the minimum current Imin and the maximum current Imax, and the minimum current Imix corresponds to the minimum brightness of the LED lamp group, and the maximum current Imax corresponds to The brightness of the LED light group is the largest. Thus, automatic adjustment of the brightness of the LED light group is achieved.

The specific implementation manners of the first control module 12 and the second control module 13 are not limited to the above, and may be selected according to actual conditions.

The color temperature automatic adjusting device of the embodiment of the present invention controls the first illuminant group 10 and the second illuminant group 11 by the brightness and color temperature acquired by the brightness sensor 15 and the RGB sensor 16 in real time, thereby achieving the brightness and color temperature of the environment. The automatic adjustment can greatly save power consumption and improve the technical effect of improving the user experience.

Example 3

As shown in FIG. 2, the embodiment is further improved on the basis of the second embodiment. The improvement is that the color temperature automatic adjustment device 1 further includes a touch control module 17, and the touch control module 17 is configured to receive The user inputs the touch operation information including the brightness value and the color temperature value, and sends the touch operation information to the MCU 14; the MCU 14 is further configured to pass the first according to the brightness value and the color temperature value included in the touch operation information. The control module 12 performs brightness and color temperature adjustment on the first illuminant group 10, and performs brightness and color temperature adjustment on the second illuminant group 11 through the second control module 13.

Specifically, the touch operation module 17 can acquire touch operation information including a brightness value and a color temperature value input by the user, and the MCU 14 adjusts the first illuminant group according to the brightness value and the color temperature value in the acquired touch operation information. And the second illuminant group is turned on, turned off and brightness adjusted to realize automatic adjustment of color temperature and brightness, wherein the process of adjusting the brightness and color temperature by the MCU according to the brightness value and the color temperature value is the same as in the implementation 2, and no longer One by one. For example, the touch control module can include a capacitive touch screen.

The color temperature automatic adjusting device of the embodiment of the invention obtains the touch operation information including the brightness value and the color temperature value through the touch control module, and can manually adjust the color temperature and the brightness, and the user can customize according to personal preference. The touch operation module performs a touch operation to adjust the color temperature and brightness of the common environment, thereby achieving the beneficial effect of the user experience by implementing manual operation to adjust the brightness and color temperature.

Example 4

As shown in FIG. 4, the embodiment is further improved on the basis of the third embodiment. The improvement is that the color temperature automatic adjusting device 1 further includes a storage module 18, and the storage module 18 stores the brightness value - a screen brightness value correspondence table, the MCU 14 is configured to search the brightness value-screen brightness value correspondence table according to the brightness value to obtain a screen brightness value corresponding to the brightness value, and according to the screen brightness value, the first An illuminant group and/or the second illuminant group is adjusted to a target brightness, which is a brightness corresponding to the screen brightness value.

Specifically, when the color temperature automatic adjusting device is applied to the light mirror, and the display area or the display screen of the color temperature automatic adjusting device and the mirror surface of the light mirror are the same plane, when the display area or the display screen is displayed There is a better user experience, and the brightness value-screen brightness value correspondence table is pre-stored by the storage module 18, wherein the brightness value in the brightness value-screen brightness value correspondence table is the current ambient brightness, and the screen brightness value is the display area or The display brightness of the display screen, after obtaining the brightness value of the current ambient brightness by the brightness sensor, the MCU 14 searches the brightness value-screen brightness value correspondence table according to the brightness value of the current environment, to obtain the screen brightness corresponding to the brightness value. a value, and adjusting the first illuminant group 10 and/or the second illuminant group 11 to a target brightness according to the screen brightness value, wherein the target brightness is a brightness corresponding to the screen brightness value, thereby improving the mirror The display brightness of the display area in the body achieves a better display effect, and is convenient for the user to view the display information or perform operations on the display area or the display screen.

The color temperature automatic adjusting device of the embodiment of the present invention may search the brightness value-screen brightness value correspondence table in the storage module by using the acquired brightness value to select the first illuminant group and/or the second according to the obtained screen brightness value. The technical solution of adjusting the illuminant group to the target brightness achieves real-time adjustment of the display brightness of the display area, thereby further improving the beneficial effect of the user experience.

Example 5

As shown in FIG. 5, an embodiment of the present invention provides a method for automatically adjusting color temperature, and the method includes the following steps:

Step S1: Obtain luminance information and color temperature information of a common environment where the first illuminant group and the second illuminant group are located.

Step S2: Adjust brightness and color temperature of the first illuminant group by using a first control module according to the acquired brightness information and color temperature information, and adjust brightness and color temperature of the second illuminant group by using a second control module.

In step S2, the color temperature information includes a color temperature value, and the brightness information includes a brightness value.

The color temperature automatic adjustment method of the embodiment of the present invention acquires the brightness and color temperature of the common environment where the first illuminant group and the second illuminant group are located, and compares the first illuminant and the second illuminant according to the acquired brightness information and color temperature information. The brightness and color temperature are adjusted to achieve automatic adjustment of the brightness and color temperature of the common environment, which improves the user experience.

Example 6

As shown in FIG. 6, the embodiment of the present invention further provides a lamp mirror 201, which includes a scope 2 and an automatic color temperature adjusting device 1 according to any of Embodiments 1-4.

As shown in FIG. 7, the lamp mirror 201 further includes a casing 23, an FPC board 24, a light guide plate 25, a diffuser plate 26, and an EVA foam 27, and the mirror body 2 is provided with a light transmitting region 22, and the first illuminant Both the group and the second illuminant group are disposed opposite to the light transmissive region 22, and the illuminants of the first illuminant group and the second illuminant group are directed toward the light transmissive region 22.

The outer casing 23 is fixedly disposed on the mirror body 2 and covers the light transmissive area 22, and the first illuminant group and the second illuminant group are both disposed on the FPC board 24, The light guide plate 25 is disposed between the FPC board 24 and the light transmitting region 22. The diffuser plate 26 is disposed between the transparent region 22 and the light guide plate 25, the EVA foam 27 is disposed on an inner sidewall of the outer casing 23; and the mirror body 2 is further coated with a specular reflection A region 28 to which the specularly reflective material is applied is located on a side of the mirror body 2 on which the outer casing is disposed.

The first illuminant group includes at least one LED light that emits warm white light, and/or the second illuminant group includes at least one chilled white LED lamp; the warm white light LED lamp and the hair The cool white LED lights are evenly disposed on the FPC board 24.

In addition, the mirror body 2 is provided with a touch screen (not shown), which is integrally formed with the mirror surface of the mirror body 2; the touch screen is used to acquire a touch operation of the user, and the acquired touch The operation information is sent to the touch control module of the color temperature automatic adjustment device.

The specific working principle of the light mirror is as follows:

The brightness sensor is used to acquire the brightness of the common environment of the mirror surface of the mirror body 2 in real time, and the RGB sensor is used to obtain the color temperature of the common environment of the mirror surface of the mirror body 2 in real time, and the MCU passes the first control module to the first according to the acquired brightness information and color temperature. The illuminant group performs brightness and color temperature adjustments and adjusts the brightness and color temperature of the second illuminant group by a second control module. Therefore, according to the current brightness and color temperature of the environment, the brightness and color temperature of the mirror surface of the lamp mirror can be automatically adjusted, so that the current brightness and color temperature of the lens lamp are better matched with the user's preference, thereby improving the user experience without manual adjustment by the user. Operation and saving power.

It should be further noted that the light mirror of the embodiment of the present invention is provided with a touch screen, and the touch screen is integrally formed with the mirror surface of the mirror body, so that the user can directly operate the related functions of the light mirror directly. It is more convenient and beautiful to operate through the mirror touch screen. After the touch screen acquires the touch operation of the user, the acquired touch operation information is sent to the touch control module. If the touch operation information includes information of a brightness value and a color temperature value, the MCU automatically adjusts the brightness value and the color temperature value according to the touch operation information. The brightness of an illuminant group and a second illuminant group to meet user setting requirements.

The lamp mirror of the embodiment of the invention can automatically adjust the color temperature and the brightness according to the current environmental state, save power consumption, and greatly improve the user experience.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

A color temperature automatic adjusting device, comprising: a first illuminant group, a second illuminant group, a first control module, a second control module, an MCU, a brightness sensor and an RGB sensor; the first illuminant group and The second illuminant group has different color temperatures;

The brightness sensor is configured to acquire brightness of a common environment in which the first illuminant group and the second illuminant group are located, and send the acquired brightness information to the MCU; the RGB sensor is configured to acquire the a color temperature of a common environment in which the illuminant group and the second illuminant group are located, and the acquired color temperature information is sent to the MCU;

The MCU is configured to perform brightness and color temperature adjustment on the first illuminant group by using the first control module according to the brightness information and the color temperature information, and to use the second control module to perform the second illuminating The body group performs brightness and color temperature adjustment.
The color temperature automatic adjusting device according to claim 1, wherein the color temperature information comprises a color temperature value, and the brightness information comprises a brightness value;

The MCU is configured to perform a first operation when the color temperature value is less than a first preset value, perform a second operation when the color temperature value is greater than a second preset value, and the color temperature value is not less than the first pre- And performing a third operation when the value is not greater than the second preset value; the second preset value is greater than the first preset value;

The first operation is: the MCU sets the first illuminant group to an on state by the first control module, and uses the first control module to perform the first illuminating according to the brightness value. Adjusting a current brightness of the body group to a target brightness, and setting the second illuminant to an off state by the second control module;

The second operation is: the MCU sets the second illuminant group to an on state by the second control module, and uses the second control module to set the second illuminant group according to the brightness value. Adjusting the current brightness to the target brightness, and setting the first illuminant to an off state by the first control module;

The third operation is: the MCU sets the first illuminant group to an open state by using the first control module, and sets the second illuminant group to an open state by using the second control module, And adjusting, according to the brightness value, the current mixed brightness of the first illuminant group and the second illuminant group to the target brightness by the first control module and the second control module, respectively.
The color temperature automatic adjusting device according to claim 2, wherein the color temperature automatic adjusting device further comprises a touch control module, wherein the touch control module is configured to receive touch operation information input by the user including a brightness value and a color temperature value, And sending the touch operation information to the MCU;

The MCU is further configured to perform brightness and color temperature adjustment on the first illuminant group by using a first control module according to the brightness value and the color temperature value included in the touch operation information, and by using the second control module The second illuminant group performs brightness and color temperature adjustment.
The color temperature automatic adjusting device according to any one of claims 1 to 3, wherein the color temperature automatic adjusting device further comprises a storage module, wherein the storage module stores a brightness value-screen brightness value correspondence table, the MCU And searching for the brightness value-screen brightness value correspondence table according to the brightness value to obtain a screen brightness value corresponding to the brightness value, and according to the screen brightness value, the first illuminant group and/or the The second illuminant group is adjusted to a target brightness, which is a brightness corresponding to the screen brightness value.
The color temperature automatic adjusting device according to claim 1 or 2, wherein said first illuminant group comprises at least one LED light that emits warm white light, and said second illuminant group includes at least one luminescent white light LED. light.
A color temperature automatic adjustment method, characterized in that the method comprises the following steps:

Obtaining brightness information and color temperature information of a common environment in which the first illuminant group and the second illuminant group are located; wherein the first illuminant group and the second illuminant group have different color temperatures;

Adjusting brightness and color temperature of the first illuminant group by the first control module according to the obtained brightness information and the color temperature information, and adjusting brightness and color temperature of the second illuminant group by using a second control module .
The color temperature automatic adjustment method according to claim 6, wherein the color temperature information comprises a color temperature value, and the brightness information comprises a brightness value;

Adjusting, by the MCU, information about brightness and color temperature of the first illuminant group by the first control module according to the acquired brightness information and color temperature information, and adjusting brightness of the second illuminant group by the second control module The color temperature step also includes:

The MCU performs a first operation when the color temperature value is less than a first preset value, performs a second operation when the color temperature value is greater than a second preset value, and the color temperature value is not less than a first preset value And performing a third operation when the value is not greater than the second preset value; the second preset value is greater than the first preset value;

The first operation is: the MCU sets the first illuminant group to an on state by using a first control module, and sets a current of the first illuminant group by using a first control module according to the brightness value. Adjusting the brightness to the target brightness, and setting the second illuminant to an off state by the second control module;

The second operation is: the MCU sets the second illuminant group to an on state by the second control module, and uses the second control module to set the second illuminant group according to the brightness value. Adjusting the current brightness to the target brightness, and setting the first illuminant group to an off state by the first control module;

The third operation is: the MCU sets the first illuminant group to an open state by using the first control module, and sets the second illuminant group to an open state by using the second control module, And adjusting, according to the brightness value, the current mixed brightness of the first illuminant group and the second illuminant group to the target brightness by the first control module and the second control module, respectively.
A light mirror comprising: a mirror body and the color temperature automatic adjusting device according to any one of claims 1 to 5; wherein the mirror body is provided with a light transmitting region, a first light emitting group and a second light emitting Each of the body groups is disposed opposite to the light-transmitting region, and an irradiation direction of the light-emitting bodies of the first illuminant group and the second illuminant group faces the light-transmitting region.
The light mirror according to claim 8, wherein the mirror body is provided with a touch screen, The touch screen is integrally formed with the mirror surface of the mirror body; the touch screen is configured to acquire a touch operation of the user, and send the acquired touch operation information to the touch control module.
The lamp mirror according to claim 8 or 9, wherein the lamp mirror further comprises a housing, an FPC board and a light guide plate, wherein the housing is fixedly disposed on the mirror body and covers the light transmissive area, The first illuminant group and the second illuminant group are both disposed on the FPC board, and the light guide plate is disposed between the FPC board and the light transmissive area.
A light mirror according to claim 10, wherein said first illuminant group comprises at least one LED light that illuminates white light, said second illuminant group comprises at least one chilled white light LED lamp; The white light-emitting LED lamp is evenly disposed on the FPC board with the chilled white light LED lamp.
The lamp mirror according to claim 10, wherein the lamp mirror further comprises a diffusion plate and an EVA foam, the diffusion plate is disposed between the light transmitting region and the light guide plate, the EVA bubble The cotton is disposed on the inner side wall of the outer casing; the mirror body is further coated with a specular reflective material, and the area coated with the specular reflective material is located on a side of the mirror body on which the outer casing is disposed.