WO2023092550A1

WO2023092550A1 - Dimming system, dimming method, and dimming glass

Info

Publication number: WO2023092550A1
Application number: PCT/CN2021/133981
Authority: WO
Inventors: 胡大海; 孟晨; 孙伟; 王永辉; 胡忠; 刘佳荣; 唐玉涛; 王永波; 朱炳海
Original assignee: 京东方科技集团股份有限公司; 北京京东方光电科技有限公司
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-06-01
Also published as: CN116635259A

Abstract

A dimming system (2), a dimming method, and a dimming glass. The dimming system (2) comprises: an illumination sensor (21), a central processor (22), a digital-to-analog converter (23), and an operational amplifier module (24); the illumination sensor (21) is electrically connected to the central processor (22); and the central processor (22) is respectively electrically connected to the digital-to-analog converter (23) and the operational amplifier module (24). The central processor (22) can determine corresponding control signal and amplification signal according to the illumination intensity detected by the illumination sensor (21), and after the digital-to-analog converter (23) converters the control signal, the operational amplifier module (24) quantitatively amplifies the converted control signal according to the amplification signal, so as to ensure the accuracy of a dimming signal output to a glass body (1), i.e., ensuring the accuracy of the dimming signal loaded on the glass body (1), thereby ensuring the accuracy of adjustment of light transmittance. Further provided are a dimming glass comprising the dimming system and a dimming method.

Description

Dimming system, dimming method and dimming glass

technical field

The present disclosure relates to the technical field of smart glass, and in particular, to a dimming system, a dimming method, and dimming glass.

Background technique

The optical properties of liquid crystal materials, such as light transmittance, can undergo stable and reversible changes under the action of an applied electric field, and glass with liquid crystal materials can use the applied electric field to adjust the light penetration, thus avoiding the setting of curtains. However, during the use of glass with liquid crystal materials, technicians found that when adjusting the light transmittance of the glass, the adjustment effect is not good, thereby reducing the viscosity of the user.

It should be noted that the information disclosed in the above background section is only for enhancing the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art.

Contents of the invention

The purpose of the present disclosure is to provide a dimming system, a dimming method and dimming glass.

According to the first aspect of the present disclosure, there is provided a dimming system for adjusting the light transmittance of a glass body, the dimming system comprising:

an illumination sensor, used to be fixed on the glass body, and the illumination sensor is used to detect the intensity of illumination on at least one side of the glass body;

a central processing unit electrically connected to the illumination sensor, and the central processing unit is used to obtain the illumination intensity, and determine the corresponding corresponding relationship from the pre-stored environmental parameter range and the control signal and the amplification signal based on the illumination intensity Control signals and amplified signals;

a digital-to-analog converter electrically connected to the central processing unit, and the digital-to-analog converter is used to obtain the control signal and perform digital-to-analog conversion;

An operational amplification module is electrically connected to the central processing unit and the digital-to-analog converter, and is also used to be electrically connected to the glass body, and the operational amplification module is used to obtain the amplified signal and the digital-to-analog conversion The control signal converted by the device, and based on the amplified signal, amplifies the converted control signal to obtain a dimming signal, and transmits the dimming signal to the glass body, and the dimming signal is used to adjust the The projected transmittance of the glass body.

According to the dimming system according to an embodiment of the present disclosure, the operational amplifier module includes a digital potentiometer and an operational amplifier;

The digital potentiometer is electrically connected between the central processing unit and the operational amplifier, the digital-to-analog converter is electrically connected to the operational amplifier, and the operational amplifier is used for electrical connection with the glass body;

The digital potentiometer is used to receive the amplified signal and output a bias signal to the operational amplifier, and the operational amplifier is used to obtain the bias signal and convert the converted control signal based on the bias signal amplified to obtain the dimming signal.

According to the dimming system according to an embodiment of the present disclosure, the dimming system further includes a reset module, and the reset module is electrically connected to the central processing unit;

The reset module is used for monitoring the electrical working parameters of the central processing unit, and when the electrical working parameters are greater than a parameter threshold, initialize processing for the central processing unit.

According to the dimming system according to an embodiment of the present disclosure, the dimming system further includes an analog-to-digital converter;

The analog-to-digital converter is electrically connected between the light sensor and the central processing unit;

The analog-to-digital converter is used to obtain the light intensity detected by the light sensor, and output it to the central processing unit after performing analog-to-digital conversion.

According to the dimming system according to an embodiment of the present disclosure, the dimming system includes a first illumination sensor and a second illumination sensor;

The first light sensor and the second light sensor are respectively electrically connected to the central processing unit, and both the first light sensor and the second light sensor are used to be fixed on the glass body;

The first light sensor is used to detect the first light intensity on the first side of the glass body, the second light sensor is used to detect the second light intensity on the second side of the glass body, and the central processing unit is used to Acquiring the first light intensity and the second light intensity, and determining a corresponding control signal and an amplification signal based on the first light intensity and the second light intensity.

According to the dimming system according to an embodiment of the present disclosure, the dimming system further includes a temperature sensor, and the temperature sensor is electrically connected to the central processing unit;

The temperature sensor is used to detect the ambient temperature on the first side of the glass body, and the central processing unit is used to obtain the illumination intensity and the ambient temperature, and determine a corresponding control signal based on the illumination intensity and the temperature and amplify the signal.

According to the dimming system according to an embodiment of the present disclosure, the dimming system further includes a voltage conversion module;

The voltage conversion module has an input port, a first output port, a second output port, and a third output port, and the output voltages of the first output port, the second output port, and the third output port are all different ;

The input port is used to be electrically connected to an external power supply, the first output port is electrically connected to the central processing unit, the second output port is electrically connected to the digital-to-analog converter, and the third output ports are respectively It is electrically connected with the operational amplification module and the central processing unit.

According to a second aspect of the present disclosure, there is provided a dimming method, the method comprising:

Detecting actual environmental parameters on at least one side of the glass body;

Determine the corresponding control signal and amplified signal from the corresponding relationship between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter;

A dimming signal is generated according to the control signal and the amplified signal and output to the glass body, the dimming signal is used to adjust the light transmittance of the glass body.

According to the method described in one embodiment of the present disclosure,

The actual environment parameters include a first illumination intensity on a first side of the glass body, and a second illumination intensity on a second side opposite to the first side, and the installed second side of the glass body faces external environment;

The determining the corresponding control signal and amplified signal from the corresponding relationship between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter includes:

determining that the first illumination intensity is within an illumination threshold range, and that the second illumination intensity is greater than an illumination threshold;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the first illumination difference range, determine the corresponding first sub- a control signal and a first sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the second illumination difference range, determine the corresponding second a control signal and a second sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within a third illumination difference range, determine the corresponding third sub- a control signal and a third sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the fourth illumination difference range, determine the corresponding fourth sub- control signal and the fourth sub-amplified signal.

According to the method described in one embodiment of the present disclosure,

The actual environmental parameters include the ambient temperature of the first side of the glass body, the first light intensity of the first side, and the second light intensity of the second side opposite to the first side, the glass body The installed second side faces the external environment;

determining that the ambient temperature is within a temperature threshold range, the first light intensity is within a light threshold range, and the second light intensity is greater than a light threshold;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the fifth illumination difference range, determine the corresponding fifth sub- a control signal and a fifth sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the sixth illumination difference range, determine the corresponding sixth sub- A control signal and a sixth sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the seventh illumination difference range, determine the corresponding seventh sub- a control signal and a seventh sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the eighth illumination difference range, determine the corresponding eighth sub- control signal and the eighth sub-amplified signal.

According to a third aspect of the present disclosure, a switchable glass is provided, comprising:

A glass body, and the dimming system described in the first aspect above;

The illumination sensor is fixedly connected to the glass body, and the operational amplification module is electrically connected to the glass body.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. Apparently, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a dimming system provided by an embodiment of the present disclosure.

FIG. 2 is a schematic diagram of an installation structure of a sensor on a glass body provided by an embodiment of the present disclosure.

FIG. 3 is a schematic structural diagram of another dimming system provided by an embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of another dimming system provided by an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of another dimming system provided by an embodiment of the present disclosure.

Fig. 6 is a schematic flowchart of a dimming method provided by an embodiment of the present disclosure.

FIG. 7 is a schematic flowchart of a method for determining a control signal and an amplified signal provided by an embodiment of the present disclosure.

FIG. 8 is a schematic flowchart of another method for determining a control signal and an amplified signal provided in an embodiment of the present disclosure.

Explanation of reference signs:

1. Glass body; 2. Dimming system;

21. Light sensor; 22. Central processing unit; 23. Digital-to-analog converter; 24. Operational amplification module; 25. Analog-to-digital converter; 26. Temperature sensor; 27. Voltage conversion module; 28. Reset module; 29. Storage module; 210, crystal oscillator module; 211, communication module;

201. The first light sensor; 202. The second light sensor;

241, digital potentiometer; 242, operational amplifier.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements/components/etc; the terms "comprising" and "have" are used to indicate an open and means that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first", "second" and "third" etc. only Used as a marker, not a limit on the number of its objects.

Fig. 1 illustrates a schematic structural diagram of a dimming system according to an embodiment of the present disclosure, and Fig. 2 illustrates a schematic structural diagram of a glass body according to an embodiment of the present disclosure. As shown in FIG. 1 and FIG. 2 , the dimming glass includes a glass body 1 and a corresponding dimming system 2 , and the dimming system 2 is used to adjust the light transmittance of the glass body 1 .

Wherein, the glass body 1 is installed on the window frame of the high-speed train, and the dimming system 2 is installed in the car body of the high-speed train. 1 can also be installed on the window frame of the car, and the dimming system 2 is installed in the body of the car; or the glass body 1 is installed on the window frame of the house, and the dimming system 2 is installed in the house.

As shown in Figure 1, the dimming system 2 includes: an illumination sensor 21, a central processing unit 22, a digital-to-analog converter 23 and an operational amplification module 24, the illumination sensor 21 is electrically connected to the central processing unit 22, and the central processing unit 22 is connected to the central processing unit 22 respectively. The digital-to-analog converter 23 is electrically connected to the operational amplification module 24, and the central processing unit 22, the analog-to-digital converter 25, the digital-to-analog converter 23, and the operational amplification module 24 are also used to electrically connect to an external power supply.

Wherein, the light sensor 21 is used to be fixed on the glass body 1 to detect the light intensity of at least one side of the glass body 1, and the central processing unit 22 is used to obtain the light intensity detected by the light sensor 21, and based on the light intensity from the pre-stored environment Determine the corresponding control signal and amplified signal in the corresponding relationship between the parameter range and the control signal and the amplified signal; the central processing unit 22 is also used to output the determined control signal to the digital-to-analog converter 23, and output the determined amplified signal to the operational amplifier Module 24; the digital-to-analog converter 23 is used to perform digital-to-analog conversion on the obtained control signal and output it to the operational amplification module 24; the operational amplification module 24 is used to amplify the digital-to-analog converted control signal according to the obtained amplified signal to obtain dimming signal, and output the obtained dimming signal to the glass body 1 to adjust the loading voltage on the glass body 1, thereby adjusting the light transmittance of the glass body 1.

In the embodiment of the present disclosure, the central processing unit 22 can determine the corresponding control signal and amplified signal according to the light intensity detected by the light sensor 21, and then the control signal is converted by the digital-to-analog converter 23, and the operational amplification module 24 can be used according to the amplified signal. The converted control signal is quantitatively amplified to ensure the accuracy of the dimming signal output to the glass body 1, that is, to ensure the accuracy of the dimming signal loaded on the glass body 1, thereby ensuring the light transmission of the glass body 1 rate adjustment accuracy.

Wherein, the central processing unit 22 pre-stores control signals and amplified signals corresponding to a plurality of environmental parameter ranges respectively. In this way, in the process of adjusting the light transmittance of the glass body 1, the central processing unit 22 The corresponding environmental parameter range is determined, and then the corresponding control signal and amplification signal are determined according to the corresponding environmental parameter range. That is to say, the dimming system 2 provided by the embodiments of the present disclosure can accurately determine the corresponding control signal and amplified signal of the glass body 1 under different light intensities, thereby improving the performance of the glass body 1 on the basis of the control signal and the amplified signal. The accuracy of light transmittance adjustment.

The control signals and amplified signals corresponding to different environmental parameter ranges can be determined in advance according to the desired light transmittance of the glass body 1 . For example, when the light intensity meets the first environmental parameter range, set the light transmittance required by the glass body 1, and then determine the dimming signal that needs to be loaded on the glass body 1 according to the required light transmittance, and then based on this The magnitude of the dimming signal determines the corresponding control signal and amplified signal, and finally the control signal and amplified signal corresponding to the dimming signal are stored in correspondence with the corresponding first environmental parameter range.

It should be noted that, in the actual connection process of the light sensor 21, the central processing unit 22, the digital-to-analog converter 23 and the operational amplification module 24, the data input end of the central processing unit 22 is electrically connected with the light sensor 21, and the central processing unit 22 The data output terminal is electrically connected to the input terminal of the digital-to-analog converter 23, the control terminal of the central processing unit 22 is electrically connected to the control terminal of the operational amplifier module 24, and the output terminal of the digital-to-analog converter 23 is electrically connected to the input terminal of the operational amplifier module 24. connect.

The aforementioned light sensor 21 , central processing unit 22 and digital-to-analog converter 23 are all conventional electrical modules, for details, please refer to related technologies. Regarding the selection of the above electrical modules, in some implementations, the light sensor 21 is a photosensitive sensor, and of course it can also be other types of light sensors 21 . Exemplarily, for the photosensitive sensor, the signal of the light sensor 21 is ADC121S101.

The central processing unit 22 may be a KEA128 series processor, and the KEA128 series processor is a highly scalable 32-bit ARM Cortex-M0+MCU product combination, mainly for the automotive market. This series of processors can provide low pin count options and extremely low power consumption, and use a 2.7-5.5V power supply and focus on EMC/ESD robustness. The KEA128 series of processors is an entry-level body controller or gateway module , window/sunroof/sunroof control, immobilizer or seat/mirror control.

The model of the digital-to-analog converter 23 is LTC2641. The LTC2641 has a reference input range of 2V to VDD. VOUT swings from 0V to VREF (input). For bipolar operation, the LTC2641 includes matched scaling resistors for use with an external precision op-amp block 24, resulting in a ±VREF output swing at RFB (the reference bias signal).

In some embodiments, in order to ensure that the operational amplifier module 24 can more accurately amplify the control signal converted by the digital-to-analog converter 23 after receiving the amplified signal, so as to ensure the accuracy of the dimming signal output by the operational amplifier module 24, As shown in Figure 3, operational amplifier module 24 comprises digital potentiometer 241 and operational amplifier 242; Digital potentiometer 241 is electrically connected between central processing unit 22 and operational amplifier 242, digital-to-analog converter 23 is electrically connected with operational amplifier 242, The operational amplifier 242 is used to electrically connect with the glass body 1; the digital potentiometer 241 is used to receive the amplified signal and output a bias signal to the operational amplifier 242, and the operational amplifier module 24 is used to obtain the bias signal, and based on the bias signal to convert The control signal is amplified to obtain the dimming signal.

Wherein, in addition to using the digital potentiometer 241 to adjust the amplified signal output by the central processor to the corresponding bias signal, digital resistors can also be used to adjust the amplified signal output by the central processor to the corresponding bias signal, that is In addition to the case where the operational amplifier module 24 includes a digital potentiometer 241 and an operational amplifier 242 , it may also include a digital resistor and an operational amplifier 242 . Of course, in addition to using digital resistors, other electrical devices can also be used to adjust the amplified signal output by the central processor to a corresponding bias signal, which is not limited in the embodiments of the present disclosure.

The operational amplifier 242 is a conventional electrical module. When the operational amplifier 242 is selected, for example, the model of the operational amplifier module 24 is OPA547. This is a low cost, high voltage/high current operational amplifier module24 ideal for driving a wide variety of loads. The OPA547 operates from a single or dual supply for design flexibility, and in single-supply operation, the input common-mode range extends below ground. The OPA547 has internal protection against thermal conditions and current overloads. Additionally, the OPA547 is designed to provide accurate, user-selectable current limit, which allows adjustment of the current limit from 0mA to 750mA.

In some embodiments, as shown in FIG. 1 or FIG. 3 , the dimming system 2 further includes an analog-to-digital converter 25, and the analog-to-digital converter 25 is electrically connected between the light sensor 21 and the central processing unit 22, and the analog-to-digital converter 25 is used to obtain the light intensity detected by the light sensor 21 and output it to the central processing unit 22 after analog-to-digital conversion.

Among them, the analog-to-digital converter 25 is mainly used to convert the light intensity of the analog signal detected by the light sensor 21 into the light intensity of the digital signal, so as to facilitate the signal transmission of the light intensity. The selection of the digital-to-analog converter 23 can refer to conventional technology. The disclosed embodiments do not limit this. Exemplarily, the model of the analog-to-digital converter 25 selected in the embodiment of the present disclosure is CMOS12, and this type of analog-to-digital converter 25 is a low-power, single-channel bit analog-to-digital converter 25 with a high-speed serial interface.

In conjunction with the above description, in the actual connection process of the analog-to-digital converter 25, the detection end of the analog-to-digital converter 25 is electrically connected to the light sensor 21, and the output end of the analog-to-digital converter 25 is electrically connected to the data input end of the central processing unit 22 .

In the embodiment of the present disclosure, when the light transmittance of the glass body 1 is adjusted according to the light intensity detected by the light sensor 21, if the light intensity on one side of the glass body 1 is detected separately, the central processing unit 22 adjusts the light transmittance of the glass body 1 according to the detected light intensity. When the light transmittance of the main body 1 is taken as an example of a high-speed train or an automobile equipped with a glass main body 1, when the high-speed train or automobile passes through shadow environments such as buildings or woods, the light sensor 21 detects the high-speed train or the external environment of the automobile. The light intensity will change frequently, and at this time, the central processing unit 22 will frequently adjust the light transmittance of the glass body 1 according to the frequently changing light intensity. Such frequent adjustments to the light transmittance of the glass body 1 are not only likely to cause visual fatigue (uncomfortable) to the user, but also easily cause damage to the glass body, reducing the life of the glass body 1.

In this way, in order to avoid frequent adjustments of the light transmittance of the glass body 1 and at the same time ensure that the adjusted light transmittance is more suitable for the current environment, as shown in FIG. 4 , the dimming system 2 includes a first light sensor 201 and a second light sensor 202 , the first light sensor 201 and the second light sensor 202 are respectively electrically connected to the data input end of the central processing unit 22 , and both the first light sensor 201 and the second light sensor 202 are used to be fixed on the glass body 1 .

The first light sensor 201 is used to detect the first light intensity on the first side of the glass body 1, the second light sensor 202 is used to detect the second light intensity on the second side of the glass body 1, and the central processing unit 22 is used to obtain the first light intensity. intensity and the second illumination, and determine the corresponding control signal and amplification signal based on the first illumination intensity and the second illumination intensity.

Wherein, after the glass body 1 is installed on the window frame, the side of the glass body 1 facing the indoor environment is regarded as the first side of the glass body 1 , and the side of the glass body 1 facing the external environment is regarded as the second side of the glass body 1 .

In this way, the dimming system 2 can adjust the light transmittance of the glass body 1 in the first adjustment mode, that is, by detecting the first light intensity on the first side of the glass body 1 and the second light intensity on the second side of the glass body 1 . second light intensity, and then determine the control signal and amplification signal suitable for the current environment according to the first light intensity and the second light intensity, to realize the adjustment of the light transmittance of the glass body 1, so as to improve the light transmittance adjustment effect of the glass body 1. In addition, when the light transmittance of the glass body 1 is adjusted, the light intensity on both sides of the glass body 1 is taken into consideration, and the light intensity on one side is avoided, thereby avoiding frequent adjustments to the light transmittance of the glass body 1 .

Wherein, the specific way for the central processor 22 to determine the corresponding control signal and amplified signal through the first light intensity and the second light intensity on both sides of the glass body 1 can refer to the following embodiments, which will not be repeated in the embodiments of the present disclosure. .

When it needs to be explained, when adjusting the light transmittance of the glass body 1, in addition to considering the light intensity on both sides of the glass body 1, the ambient temperature of the second side of the glass body 1, that is, the temperature of the second side of the glass body 1 can also be considered. The ambient temperature of the external environment (exterior of high-speed train, exterior of automobile, exterior of house) after installation. For some areas, after the glass body 1 is installed, the environment of the external environment is a high-temperature environment, so that the light adjustment system including the first temperature sensor 201 and the second sensor 202 can be used without considering the ambient temperature of the external environment. Adjust the light transmittance of the glass body 1 .

And for other areas, after the glass body 1 is installed, the external environment may have a low-temperature environment. The light transmittance of the glass body 1. Since the external environment is a low-temperature environment, that is, the temperature of the external environment is relatively low, after the light transmittance of the glass body 1 is adjusted, the glass body 1 will be in a dark state for a long time, thereby reducing the temperature rise caused by absorbing light.

In this way, in order to ensure the adjustment effect of the light transmittance of the glass body 1 on the basis of ensuring the ambient temperature of the first side of the glass body 1 (the ambient temperature in the room after the glass body 1 is installed), in addition to determining according to the light intensity detected by the light sensor 21 In addition to the control signal and amplified signal corresponding to the current environment, the light intensity can also be detected by the light sensor 21, and the ambient temperature of the first side of the glass body 1 can be detected by the temperature sensor 26, and then according to the detected light intensity and the environment detected by the temperature sensor 26 The temperature determines the appropriate control and amplification signals for the current environment. That is, the dimming system 2 includes a temperature sensor 26 in addition to the illumination sensor 21, and the temperature sensor 26 is electrically connected to the central processing unit 22; the temperature sensor 26 is used to detect the ambient temperature on the first side of the glass body 1, and the central processing unit The device 22 is used to obtain the light intensity and the ambient temperature, and determine the corresponding control signal and amplified signal based on the light intensity and temperature.

Wherein, the quantity of illumination sensor 21 is one, and this illumination sensor 21 is used for detecting the illumination intensity of the second side of glass body 1, of course, the quantity of illumination sensor 21 can also be two, and two illumination sensors 21 respectively detect glass body 1 Light intensity for the first and second sides.

Taking two illumination sensors 21 as an example, as shown in FIG. 4 , the dimming system 2 also includes a temperature sensor 26, which is electrically connected to the central processing unit 22, and the temperature sensor 26 is used to detect the temperature of the first side of the glass body 1. Ambient temperature, the central processing unit 22 is used to acquire the first light intensity, the second light intensity and the environment temperature, and determine the corresponding control signal and amplified signal based on the first light intensity, the second light intensity and the environment temperature.

In this way, the dimming system 2 can adjust the light transmittance of the glass body 1 in the second adjustment mode, that is, by detecting the first light intensity and the ambient temperature on the first side of the glass body 1 and the first side of the glass body 1. The second light intensity on both sides, and then determine the control signal and amplified signal suitable for the current environment according to the first light intensity, the second light intensity and the ambient temperature, so as to realize the adjustment of the light transmittance of the glass body 1, so as to improve the glass body 1 Transmittance adjustment effect.

Wherein, the temperature sensor 26 may use a thermistor temperature sensor 26 to collect the ambient temperature, and of course other types of temperature sensors 26 may also be used, which is not limited in the embodiments of the present disclosure.

Wherein, the specific way for the central processing unit 22 to determine the corresponding control signal and amplified signal through the first light intensity and ambient temperature on the first side of the glass body 1 and the second light intensity on the second side can refer to the following embodiments. This is not repeated in the disclosed implementation manner.

It should be noted that when the dimming system includes the first illumination sensor 201, the second illumination sensor 202 and the temperature sensor 26, the light transmittance of the glass body 1 can be adjusted in the first adjustment mode or in the second adjustment mode. Adjustment. In order to switch between the two adjustment modes, the dimming system 2 also includes an external temperature sensor for detecting the external ambient temperature on the second side of the glass body 1 (the ambient temperature of the external environment after the glass body 1 is installed), so as to The external ambient temperature detected by the external temperature sensor determines whether the external environment where the glass body 1 is currently located is a high temperature environment or a low temperature environment. If it is determined that the external environment is a high temperature environment, and switch to the first adjustment mode to adjust the light transmittance of the glass body 1; if it is determined that the external environment is a low temperature environment, and switch to the second adjustment mode to adjust the light transmittance of the glass body 1 Adjustment.

In the embodiments of the present disclosure, the electrical modules included in the dimming system 2 can be directly powered by an external power supply. However, since the working voltages of the electrical modules are not the same, and the voltage of the external power supply is relatively high, an additional step-down is required, which makes the power supply circuit of the external power supply more complicated. Therefore, in order to simplify the power supply circuit, as shown in FIG. 5, the dimming system 2 also includes a voltage conversion module 27, the voltage conversion module 27 has an input port, a first output port, a second output port, and a third output port. The output voltages of the output port, the second output port and the third output port are all different; the input port is used for electrical connection with an external power supply, the first output port is electrically connected with the central processing unit 22, and the second output port is connected with the digital-to-analog converter 23, and the third output port is electrically connected to the operational amplifier module 24 and the central processing unit 22 respectively.

In this way, multiple output ports with different output voltages can be provided at the same time through the use of the voltage conversion module 27 to simultaneously supply power to multiple electrical components, thereby simplifying the power supply circuit.

Among them, the voltage conversion module 27 of the embodiment of the present disclosure selects the step-down module 27 of the model LMZM23600, and the voltage conversion module 27 of the LMZM23600 model has output ports of 5V and 3.3V, and adjustable output ports in the range of 2.5V to 15V . The voltage conversion module 27 of the LMZM23600 type supports an input voltage range of 4V to 36V and can deliver up to 500mA of output current, thus avoiding the separate setting of the step-down circuit. The LMZM23600 model voltage conversion module27 provides a true indication of system status during operation without the need for additional monitoring components, saving cost and board space.

In some embodiments, as shown in FIG. 5 , the dimming system 2 also includes a reset module 28, the reset module 28 is electrically connected to the central processing unit 22, and the reset module 28 is used to monitor the electrical work of the central processing unit 22. parameter, and when the electrical working parameter is greater than the parameter threshold, the central processing unit 22 is initialized for processing.

During the working process of the dimming system 2, it is inevitable that the point operating parameters of the central processing unit 22 will be too large due to external factors or the factors of the electrical module itself. Therefore, the accuracy of determining the control signal and the amplified signal is easily affected. After the central processing unit 22 is connected with the reset module 28, the working state of the central processing unit 22 can be monitored by the reset module 28, so as to avoid the overload of the central processing unit 22 or even a downtime situation, thereby ensuring the dimming System 2 runs stably for a long time.

Wherein, the parameter threshold is pre-stored in the reset module 28 . The selection of the reset module 28 can refer to related technologies, which will not be repeated in the embodiments of the present disclosure.

In the embodiments disclosed in the present application, the different preset conditions that need to be stored, as well as the control signal and amplified signal corresponding to each preset condition, can be directly stored on the memory chip configured by the central processing unit 22 itself, of course, as shown in Figure 5 As shown, it may also be that the dimming system 2 includes a storage module 29, and the storage module 29 is electrically connected to the central processing unit 22. At this time, different preset conditions, and the control signal and amplified signal corresponding to each preset condition are stored in the The storage module 29 and the central processing unit 22 can invoke control signals and amplified signals corresponding to different preset conditions in the storage module 29 through communication with the storage module 29 .

In addition, the storage module 29 not only has the function of storing control signals and amplified signals corresponding to different preset conditions, but also can provide the space required for upgrading the dimming system 2, avoiding the storage module 29 when upgrading the dimming system 2. 29 Insufficient memory.

The above-mentioned storage module 29 can be a solid-state memory or a flash memory, so as to avoid the problem that the dimming system 2 takes a long time to start.

In the embodiment disclosed in the present application, during the working process of the central processing unit 22, the central processing unit 22 can work based on the clock crystal oscillator configured by itself. Of course, there may be errors in the clock crystal oscillator configured by the central processing unit 22 itself. At this time, the central processing unit 22 22 jobs may be less accurate. Therefore, in order to ensure the accuracy of the central processing unit 22 , as shown in FIG. 5 , the dimming system 2 further includes a crystal oscillator module 210 , which is electrically connected to the central processing unit 22 . In this way, the crystal oscillator module 210 with higher accuracy can be selected with reference to the relevant count, and the selected crystal oscillator module 210 is electrically connected to the central processing unit 22 to ensure the accuracy of the central processing unit 22 during work. Exemplarily, the crystal oscillator module 210 is an active crystal oscillator.

In the embodiment of the present disclosure, the adjustment of the light transmittance of the glass body 1 can be in the automatic adjustment mode, that is, the central processing unit 22 realizes the adjustment of the light transmittance of the glass body 1 according to the acquired light intensity; of course, the glass body 1 The light transmittance adjustment can also be in manual adjustment mode, that is, when the central processing unit 22 receives the adjustment signal, it adjusts the light transmittance of the glass body 1 according to the adjustment signal. In order to realize the manual adjustment mode, as shown in FIG. 5 , the dimming system 2 further includes a communication module 211 , and the communication module 211 is electrically connected to the central processing unit 22 . In this way, when in the manual adjustment mode, the adjustment signal can be received through the communication module 211 for adjustment, thereby facilitating adjustment according to the needs of the user and increasing user viscosity.

In the embodiments of the present disclosure, combined with the dimming system 2 described in the above embodiments, as shown in FIG. 2 , the light sensor 21 is fixedly connected to the glass body 1 , and the operational amplifier module 24 is electrically connected to the glass body 1 .

Wherein, the light sensor 21 is fixed on the glass body 1, and when the detection end of the light sensor 21 faces the first side of the glass body 1, it is used to detect the light intensity of the first side of the glass body 1; When the second side of the main body 1 is used, it is used to detect the light intensity of the second side of the glass main body 1 .

In some embodiments, the glass body 1 includes at least a liquid crystal layer and conductive layers located on both sides of the liquid crystal layer. For specific structures, reference may be made to related technologies, which are not limited in the embodiments of the present disclosure. Exemplarily, the glass body 1 includes a bottom conductive layer, an ion storage layer, an ion conductive layer, a liquid crystal layer and a top conductive layer. The material of the bottom conductive layer and the top conductive layer includes one of metal oxide, conductive transparent nitride, transparent metal and transparent alloy, and the material of the electrochromic layer includes tungsten oxide, titanium oxide, copper oxide, vanadium oxide The material of the ion-conducting layer includes one of lithium oxide, silicon dioxide, aluminum oxide, tantalum oxide, etc., and the material of the ion storage layer includes vanadium oxide, niobium oxide, nickel oxide, cobalt oxide, etc. A sort of.

In combination with the structure of the glass body 1 described above, the light sensor 21 is fixed in the glass body 1 at this time, that is, fixed between any two structural layers included in the glass body 1 . Exemplarily, the light sensor 21 is fixed between the conductive layer and the liquid crystal layer. Certainly, besides being fixed in the glass body 1 , the illumination sensor 21 may also be fixed on the surface of the glass body 1 . For example, the surface of the glass body 1 has an inlay groove, and the light sensor 21 is fixed in the inlay groove, and the implementation of the present disclosure does not limit the installation method of the light sensor 21 .

In some implementations, as shown in FIG. 2 , the dimming system 2 includes a first light sensor 201 and a second light sensor 202, both of which are fixedly connected to the glass body 1, and the second A detection end of an illumination sensor 201 faces the first side of the glass body 1 , and a detection end of the second illumination sensor 202 faces the second side of the glass body 1 . Wherein, the first light sensor 201 is used to detect the light intensity of the first side of the glass body 1 , and the second light sensor 202 is used to detect the light intensity of the second side of the glass body 1 .

It should be noted that since the bottom of the glass body 1 is closely connected to the window frame, the bottom of the glass body 1 needs to be embedded in the window frame, and the left and right sides of the glass body 1 also need to be embedded in the window frame, so we The first light sensor 201 and the second light sensor 202 need to be installed on the top of the glass body 1 . At the same time, in order to avoid mutual influence between the first light sensor 201 and the second light sensor 202 (such as magnetic interference, etc.), the distance between the first light sensor 201 and the second light sensor 202 is greater than or equal to the distance threshold. For example, as shown in FIG. 2 , both the first light sensor 201 and the second light sensor 202 are located on the top of the glass body 1, and the first light sensor 201 is fixed on the left side of the glass body 1, and the second light sensor 202 It is fixed at the position near the right side of the glass body 1.

In some other embodiments, as shown in FIG. 2 , the dimming system 2 further includes a temperature sensor 26 fixedly connected to the glass body 1 , and the detection end of the temperature sensor 26 faces the first side of the glass body 1 . Wherein, the temperature sensor 26 is used to detect the ambient temperature of the first side of the glass body 1 .

It should be noted that, when installing the temperature sensor 26, in order to avoid the influence (such as magnetic interference, etc.) Can be embedded in the position of the window frame at the bottom or side of the glass body 1 . Further, since the height of the bottom of the glass body 1 is close to half of the height of a high-speed train or a car, the ambient temperature in the room can be collected more accurately. Therefore, as shown in FIG. 2 , the temperature sensor 26 is fixed on the bottom of the glass body 1 .

In the embodiment of the present disclosure, when the glass body 1 is installed on the window frame, the first side of the glass body 1 is used to face away from the external environment, so as to detect the indoor light intensity through the first light sensor, and detect the outdoor light through the second light sensor. Intensity, the ambient temperature in the room is detected by the temperature sensor.

Fig. 6 illustrates a schematic flowchart of a dimming method according to an embodiment of the present disclosure, the method is used to adjust the light transmittance of a glass body. As shown in Fig. 6, the method includes the following steps S601-S603.

S601. Detect actual environmental parameters on at least one side of the glass body.

S602. Determine the corresponding control signal and amplified signal from the pre-stored correspondence between the range of the environmental parameter and the control signal and the amplified signal according to the actual environment parameter.

S603. Amplify the control signal according to the amplified signal to obtain a dimming signal, and output it to the glass body. The dimming signal is used to adjust the light transmittance of the glass body.

In the embodiment of the present disclosure, after the actual environmental parameters are detected, the corresponding control signal and amplified signal can be determined according to the actual environmental parameters, and then the control signal is amplified according to the amplified signal to obtain a quantitatively amplified voltage regulation signal, thereby After the voltage regulation signal is output to the glass body, the light transmittance of the glass body can be accurately adjusted, thereby ensuring the accuracy of adjusting the light transmittance of the glass body.

The above steps S601-S603 may be performed by the dimming system described in the above embodiments, and of course may also be performed by other dimming systems. Next, the above steps S601-S603 will be explained in detail.

The execution subject of the above step S601 is the sensor included in the dimming system. When the dimming system includes a light sensor, the light intensity is detected by the light sensor, and the actual environmental parameters include the light intensity; when the dimming system includes a temperature sensor, the ambient temperature is detected by the temperature sensor, and the actual environmental parameters include the ambient temperature; When the dimming system includes both a light sensor and a temperature sensor, the light intensity is detected by the light sensor, and the ambient temperature is detected by the temperature sensor. At this time, the actual environmental parameters include the light intensity and the ambient temperature.

For the light sensor, if the detection end of the light sensor faces the first side of the glass body, the detected result is the light intensity of the first side of the glass body; if the detection end of the light sensor faces the second side of the glass body, the detected The result is the light intensity on the second side of the glass body. For the temperature sensor, if the detection end of the temperature sensor faces the first side of the glass body, the detected result is the ambient temperature of the first side of the glass body; if the detection end of the temperature sensor faces the second side of the glass body, the detected The result is the ambient temperature of the second side of the glass body.

Of course, the execution subject of the above step S601 may also be the central processor included in the dimming system. At this time, after each sensor included in the dimming system detects the actual environmental parameters, the central processor acquires the actual environmental parameters from each sensor, In order to realize the detection of actual environmental parameters.

The execution subject of the above step S602 may be a central processing unit included in the dimming system. If the executors of the above step S601 are the sensors included in the dimming system, after the actual environmental parameters are detected through step S601, each sensor needs to transmit the detected actual environmental parameters to the central processing unit, and then execute the determination of actual environmental parameters in step S602. Control signals and amplified signals corresponding to environmental parameters.

Wherein, the central processing unit pre-stores control signals and amplified signals corresponding to a plurality of environmental parameter ranges, so that in the process of adjusting the light transmittance of the glass body, the central processing unit determines the corresponding The environmental parameter range, and then determine the corresponding control signal and amplification signal according to the corresponding environmental parameter range. That is to say, the dimming system provided by the embodiments of the present disclosure can accurately determine the corresponding control signal and amplified signal of the glass body under different environmental parameters, thereby improving the light transmittance of the glass body on the basis of the control signal and the amplified signal Adjustment precision.

In some embodiments, in order to improve the effect of adjusting the light transmittance of the glass body, a first light sensor for detecting the light intensity on the first side of the glass body and a light sensor for detecting the light intensity on the second side of the glass body are usually provided. Intensity of the second light sensor. That is, the dimming system includes a first light sensor and a second light sensor. At this time, the actual environmental parameters detected in the above step S601 include the first light intensity on the first side of the glass body, and the second light intensity on the second side opposite to the first side. The second side of the glass body after installation faces external environment.

In this case, as shown in FIG. 7 , the above step S602 includes determining a corresponding control signal and an amplification signal according to the first light intensity and the second light intensity. Specifically, it can be realized through the following steps S6021A-S6025A.

S6021A. Determine that the first light intensity is within the light threshold range, and the second light intensity is greater than the light threshold.

Since the light intensity on the first side of the glass body is the indoor light intensity, and the indoor light intensity is usually kept at a constant value when the user is indoors. In this way, after the light intensity of the second side of the glass body changes, in order to ensure the accuracy of the light transmittance adjustment of the glass body, the first light intensity of the first side of the glass body can be determined first, and then based on the first light intensity The light transmittance of the glass body is adjusted in combination with the second light intensity.

Among them, for different scenes, the indoor light intensity will be different, that is, the first light intensity corresponds to different light threshold ranges in different scenes, and when the light intensity on the second side of the glass body is small, it will not affect the indoor light intensity. The environment has an impact. Therefore, in a determined application scenario, it is first determined whether the first illumination intensity is within the illumination threshold range corresponding to the application field, and whether the second illumination intensity is greater than the illumination threshold.

For example, referring to the application scenario of the high-speed train described in the above-mentioned embodiments, the illumination threshold range is greater than or equal to 5000 lux and less than or equal to 7000 lux, and the illumination threshold is 8000 lux.

If it is determined that the first light intensity is within the light threshold range and the second light intensity is greater than the light threshold, continue to perform the following steps S6022A-S6025A.

S6022A. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the first light difference range, determine the corresponding first sub-control signal and the first sub-control signal. Amplify the signal.

Continuing the example of the above application scenario, the first illumination difference range is greater than or equal to 1500 lux and less than 4000 lux, that is, the range of the first environmental parameter pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 1500 lux and less than 4000 lux.

S6023A. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the second light difference range, determine the corresponding second sub-control signal and the second sub-control signal. Amplify the signal.

Continuing the example of the above application scenario, the second illumination difference range is greater than or equal to 4000 lux and less than 7000 lux, that is, the second environmental parameter range pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 4000 lux and less than 7000 lux.

S6024A. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the third light difference range, determine the corresponding third sub-control signal and the third sub-control signal. Amplify the signal.

Continuing the example of the above application scenario, the third illumination difference range is greater than or equal to 7000 lux and less than 12000 lux, that is, the third environmental parameter range pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 7000 lux and less than 12000 lux.

S6025A. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the fourth light difference range, determine the corresponding fourth sub-control signal and the fourth sub-control signal Amplify the signal.

Continuing the example of the above application scenario, the fourth illumination difference range is greater than or equal to 12000 lux, that is, the fourth environmental parameter range pre-stored in the CPU is the illumination obtained by subtracting the first illumination intensity from the second illumination intensity The difference is greater than or equal to 12000 lux.

It should be noted that, taking the greater the applied voltage on the glass body, the greater the light transmittance as an example, at this time the first dimming signal, the second dimming signal, the third dimming signal, and the fourth dimming signal respectively correspond to The loading voltage is gradually reduced, so that the light transmittance of the glass body becomes smaller when the second light intensity is higher.

In the embodiments of the present disclosure, in conjunction with the above steps S6021A-S6025A, the above step S603 is mainly determined according to the control signal and the amplified signal determined in the above step S602.

Wherein, the executor of the above step S603 includes an operational amplification module and a digital-to-analog converter. After the above-mentioned step S602 determines the corresponding control signal and the amplified signal, the control signal is output to the digital-to-analog converter, and the amplified signal is output to the operational amplification module. At this time, the digital-to-analog converter performs digital-to-analog conversion on the control signal, and the operational amplifier module amplifies the digital-to-analog converted control signal according to the amplified signal to obtain a dimming signal.

If the above step S602 determines the first sub-control signal and the first sub-amplified signal, then step S603 includes: generating a first dimming signal according to the first sub-control signal and the first sub-amplified signal, and outputting it to the glass body. A dimming signal is used to adjust the light transmittance of the glass body.

If the above-mentioned step S602 determines the second sub-control signal and the second sub-amplified signal, then step S603 includes: generating a second dimming signal according to the second sub-control signal and the second sub-amplified signal, and outputting it to the glass body. The second dimming signal is used to adjust the light transmittance of the glass body.

If the above step S602 determines the third sub-control signal and the third sub-amplified signal, then step S603 includes: generating a third dimming signal according to the third sub-control signal and the third sub-amplified signal, and outputting the third dimming signal to the glass body. The three dimming signals are used to adjust the light transmittance of the glass body.

If the above step S602 determines the fourth sub-control signal and the fourth sub-amplified signal, then step S603 includes: generating a fourth dimming signal according to the fourth sub-control signal and the fourth sub-amplified signal, and outputting it to the glass body. The four dimming signals are used to adjust the light transmittance of the glass body.

In some other embodiments, in order to further improve the effect of adjusting the light transmittance of the glass body, so that the dimming method can also be applied to a low-temperature environment, a temperature sensor for detecting the ambient temperature on the first side of the glass body is usually provided. , that is, the dimming system includes a temperature sensor. At this time, the actual environmental parameters detected in the above step S601 include the ambient temperature and the first light intensity of the first side of the glass body, and the second light intensity of the second side opposite to the first side. Two sides face the external environment.

In this case, as shown in FIG. 8 , the above step S602 includes determining a corresponding control signal and an amplification signal according to the first light intensity, the second light intensity, and the ambient temperature. Specifically, it can be realized through the following steps S6021B-S6025B.

S6021B. Determine that the ambient temperature is within the temperature threshold range, the first light intensity is within the light threshold range, and the second light intensity is greater than the light threshold.

Since the ambient temperature on the first side of the glass body is the indoor temperature, and the indoor temperature is usually kept at a constant value when the user is indoors, and the light intensity on the first side of the glass body is the indoor light intensity, and the indoor light intensity when the user is indoors Intensity is usually kept at a constant value. In this way, after the light intensity of the second side of the glass body changes, in order to ensure the accuracy of the light transmittance adjustment of the glass body, the ambient temperature and the first light intensity of the first side of the glass body can be determined first, and then the first light intensity The light transmittance of the glass body is adjusted on the basis of combining with the second light intensity.

Among them, for different scenes, the indoor temperature is different, and the indoor light intensity will be different, that is, the first light intensity corresponds to different light threshold ranges in different scenes, and the ambient temperature corresponds to different temperature thresholds in different scenes, and in When the light intensity on the second side of the glass body is small, it will not affect the indoor environment. Therefore, in a certain application scenario, first determine whether the ambient temperature is within the temperature threshold range, whether the first light intensity is within the light threshold range corresponding to the application field, and whether the second light intensity is greater than the light threshold.

For example, in combination with the application scenario of the high-speed train described in the above embodiment, the temperature threshold range is greater than or equal to 25 degrees Celsius, the illumination threshold range is greater than or equal to 5000 lux and less than or equal to 7000 lux, and the illumination threshold is 8000 lux.

If it is determined that the ambient temperature is within the temperature threshold range, the first light intensity is within the light threshold range, and the second light intensity is greater than the light threshold, continue to perform the following steps S6022A-S6025A.

S6022B. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the fifth light difference range, determine the corresponding fifth sub-control signal and the fifth sub-control signal. Amplify the signal.

Continuing the example of the above application scenario, the fifth illumination difference range is greater than or equal to 1200 lux and less than 3000 lux, that is, the fifth environmental parameter range pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 1200 lux and less than 3000 lux.

S6023B. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the sixth light difference range, determine the corresponding sixth sub-control signal and the sixth sub-control signal Amplify the signal.

Continuing the example of the above application scenario, the sixth illumination difference range is greater than or equal to 3000 lux and less than 6000 lux, that is, the sixth environmental parameter range pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 3000 lux and less than 6000 lux.

S6024B. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the seventh light difference range, determine the corresponding seventh sub-control signal and the seventh sub-control signal Amplify the signal.

Continuing the example of the above application scenario, the seventh illumination difference range is greater than or equal to 6000 lux and less than 11000 lux, that is, the seventh environmental parameter range pre-stored in the central processing unit is the second illumination intensity minus the first illumination The light difference obtained after the intensity is greater than or equal to 6000 lux and less than 11000 lux.

S6025B. When the second light intensity is greater than the first light intensity, and the difference between the second light intensity and the first light intensity is within the eighth light difference range, determine the corresponding eighth sub-control signal and the eighth sub-control signal Amplify the signal.

Continuing the example of the above application scenario, the eighth illumination difference range is greater than or equal to 11000 lux, that is, the eighth environmental parameter range pre-stored in the CPU is the illumination obtained by subtracting the first illumination intensity from the second illumination intensity The difference is greater than or equal to 11000 lux.

It should be noted that, taking the greater the applied voltage on the glass body, the greater the light transmittance as an example. At this time, the fifth dimming signal, the sixth dimming signal, the seventh dimming signal, and the eighth dimming signal correspond to The loading voltage is gradually reduced, so that the light transmittance of the glass body becomes smaller when the second light intensity is higher.

In the embodiments of the present disclosure, in conjunction with the above steps S6021B-S6025B, the above step S603 is mainly determined according to the control signal and the amplified signal determined in the above step S602.

If the fifth sub-control signal and the fifth sub-amplified signal are determined in the above step S602, then step S603 includes: generating a fifth dimming signal according to the fifth sub-control signal and the fifth sub-amplified signal, and outputting the fifth dimming signal to the glass body. The five dimming signals are used to adjust the light transmittance of the glass body.

If the sixth sub-control signal and the sixth sub-amplified signal are determined in the above step S602, then step S603 includes: generating a sixth dimming signal according to the sixth sub-control signal and the sixth sub-amplified signal, and outputting the sixth dimming signal to the glass body. The six dimming signals are used to adjust the light transmittance of the glass body.

If the above step S602 determines the seventh sub-control signal and the seventh sub-amplified signal, then step S603 includes: generating a seventh dimming signal according to the seventh sub-control signal and the seventh sub-amplified signal, and outputting it to the glass body. The seven dimming signals are used to adjust the light transmittance of the glass body.

If the eighth sub-control signal and the eighth sub-amplified signal are determined in the above step S602, then step S603 includes: generating an eighth dimming signal according to the eighth sub-control signal and the eighth sub-amplified signal, and outputting the eighth dimming signal to the glass body. The eight dimming signals are used to adjust the light transmittance of the glass body.

It should be noted that the implementation process described in some of the above implementation manners corresponds to the implementation process in the first adjustment mode in the above-mentioned disclosed implementation manner; the implementation process described in the above-mentioned other implementation manners corresponds to the implementation process in the above-mentioned disclosed implementation manner. And the specific selection of some of the above-mentioned embodiments and other embodiments can refer to whether the external environment where the glass body 1 is currently located in the above-mentioned disclosed embodiments is a high-temperature environment or a low-temperature environment.

It should be noted that although the steps of the method for controlling the dimming glass in the present disclosure are described in a specific order in the accompanying drawings, this does not require or imply that these steps must be performed in this specific order, or that all steps must be performed. The steps shown are required to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with the true scope and spirit of the disclosure indicated by the appended claims.

Claims

A dimming system for adjusting the light transmittance of a glass body, wherein the dimming system includes:

an illumination sensor, used to be fixed on the glass body, and the illumination sensor is used to detect the intensity of illumination on at least one side of the glass body;

a central processing unit electrically connected to the illumination sensor, and the central processing unit is used to obtain the illumination intensity, and determine the corresponding corresponding relationship from the pre-stored environmental parameter range and the control signal and the amplification signal based on the illumination intensity Control signals and amplified signals;

a digital-to-analog converter electrically connected to the central processing unit, and the digital-to-analog converter is used to obtain the control signal and perform digital-to-analog conversion;

An operational amplification module is electrically connected to the central processing unit and the digital-to-analog converter, and is also used to be electrically connected to the glass body, and the operational amplification module is used to obtain the amplified signal and the digital-to-analog conversion The control signal converted by the device, and based on the amplified signal, amplifies the converted control signal to obtain a dimming signal, and transmits the dimming signal to the glass body, and the dimming signal is used to adjust the The projected transmittance of the glass body.
The dimming system according to claim 1, wherein the operational amplifier module comprises a digital potentiometer and an operational amplifier;

The digital potentiometer is electrically connected between the central processing unit and the operational amplifier, the digital-to-analog converter is electrically connected to the operational amplifier, and the operational amplifier is used for electrical connection with the glass body;

The digital potentiometer is used to receive the amplified signal and output a bias signal to the operational amplifier, and the operational amplifier is used to obtain the bias signal and convert the converted control signal based on the bias signal amplified to obtain the dimming signal.
The dimming system according to claim 1, wherein the dimming system further comprises a reset module, and the reset module is electrically connected to the central processing unit;

The reset module is used for monitoring the electrical working parameters of the central processing unit, and when the electrical working parameters are greater than a parameter threshold, initialize processing for the central processing unit.
The dimming system according to claim 1, wherein the dimming system further comprises an analog-to-digital converter;

The analog-to-digital converter is electrically connected between the light sensor and the central processing unit;

The analog-to-digital converter is used to obtain the light intensity detected by the light sensor, and output it to the central processing unit after performing analog-to-digital conversion.
The dimming system according to any one of claims 1-4, wherein the dimming system comprises a first illumination sensor and a second illumination sensor;

The first light sensor and the second light sensor are respectively electrically connected to the central processing unit, and both the first light sensor and the second light sensor are used to be fixed on the glass body;

The first light sensor is used to detect the first light intensity on the first side of the glass body, the second light sensor is used to detect the second light intensity on the second side of the glass body, and the central processing unit is used to Acquiring the first light intensity and the second light intensity, and determining a corresponding control signal and an amplification signal based on the first light intensity and the second light intensity.
The dimming system according to any one of claims 1-4, wherein the dimming system further comprises a temperature sensor, and the temperature sensor is electrically connected to the central processing unit;

The temperature sensor is used to detect the ambient temperature on the first side of the glass body, and the central processing unit is used to obtain the illumination intensity and the ambient temperature, and determine a corresponding control signal based on the illumination intensity and the temperature and amplify the signal.
The dimming system according to claim 1, wherein the dimming system further comprises a voltage conversion module;

The voltage conversion module has an input port, a first output port, a second output port, and a third output port, and the output voltages of the first output port, the second output port, and the third output port are all different ;

The input port is used to be electrically connected to an external power supply, the first output port is electrically connected to the central processing unit, the second output port is electrically connected to the digital-to-analog converter, and the third output ports are respectively It is electrically connected with the operational amplification module and the central processing unit.
A dimming method for adjusting the light transmittance of a glass body, wherein the method includes:

Detecting actual environmental parameters on at least one side of the glass body;

Determine the corresponding control signal and amplified signal from the corresponding relationship between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter;

The control signal is amplified according to the amplified signal to obtain a dimming signal, which is output to the glass body, and the dimming signal is used to adjust the light transmittance of the glass body.
The method according to claim 8, wherein the actual environmental parameters include a first illumination intensity on a first side of the glass body, and a second illumination intensity on a second side opposite to the first side, The installed second side of the glass body faces the external environment;

The determining the corresponding control signal and amplified signal from the corresponding relationship between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter includes:

determining that the first illumination intensity is within an illumination threshold range, and that the second illumination intensity is greater than an illumination threshold;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the first illumination difference range, determine the corresponding first sub- a control signal and a first sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the second illumination difference range, determine the corresponding second a control signal and a second sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within a third illumination difference range, determine the corresponding third sub- a control signal and a third sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the fourth illumination difference range, determine the corresponding fourth sub- control signal and the fourth sub-amplified signal.
The method according to claim 8, wherein the actual environmental parameters include the ambient temperature and the first light intensity of the first side of the glass body, and the second light intensity of the second side opposite to the first side. light intensity, the second side of the glass body after installation faces the external environment;

The determining the corresponding control signal and amplified signal from the corresponding relationship between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter includes:

determining that the ambient temperature is within a temperature threshold range, the first light intensity is within a light threshold range, and the second light intensity is greater than a light threshold;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the fifth illumination difference range, determine the corresponding fifth sub- a control signal and a fifth sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the sixth illumination difference range, determine the corresponding sixth sub- A control signal and a sixth sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the seventh illumination difference range, determine the corresponding seventh sub- a control signal and a seventh sub-amplified signal;

When the second illumination intensity is greater than the first illumination intensity, and the difference between the second illumination intensity and the first illumination intensity is within the eighth illumination difference range, determine the corresponding eighth sub- control signal and the eighth sub-amplification signal.
A dimming glass, comprising: a glass body, and the dimming system according to any one of claims 1-7;

The illumination sensor is fixedly connected to the glass body, and the operational amplification module is electrically connected to the glass body.