Dimming system, dimming method and dimming glass

Abstract

The present disclosure provides a dimming system, a dimming method and a dimming glass. The dimming system (2) comprises: a light sensor (21), a central processing unit (22), a digital-to-analog converter (23) and an operational amplifier module (24). The light sensor (21) is electrically connected to the central processing unit (22), and the central processing unit (22) is electrically connected to the digital-to-analog converter (23) and the operational amplifier module (24) respectively. In the embodiment of the present disclosure, the central processing unit (22) can determine the corresponding control signal and the amplified signal according to the light intensity detected by the light sensor (21). After the control signal is converted by the digital-to-analog converter (23), the operational amplifier module (24) quantitatively amplifies the converted control signal according to the amplified signal 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 accuracy of the transmittance adjustment.

Description

Technical Field

[0001] 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 Art

[0002] The optical properties of liquid crystal materials, such as light transmittance, can undergo stable and reversible changes under the action of an external electric field, and glass with liquid crystal materials can use the applied electric field to adjust the light transmittance, thus avoiding the need to set up curtains. However, during the use of glass with liquid crystal materials, technicians found that the adjustment effect was not good when adjusting the light transmittance of the glass, which reduced user stickiness.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present disclosure is to provide a dimming system, a dimming method and dimming glass.

[0005] According to a first aspect of the present disclosure, a dimming system is provided for adjusting the light transmittance of a glass body, the dimming system comprising:

[0006] A light sensor, used to be fixed on the glass body, and the light sensor is used to detect the light intensity on at least one side of the glass body;

[0007] A central processing unit is electrically connected to the light sensor, and is used to obtain the light intensity, and determine the corresponding control signal and amplified signal from the pre-stored correspondence between the environmental parameter range and the control signal and the amplified signal based on the light intensity;

[0008] A digital-to-analog converter, electrically connected to the central processing unit, and used to obtain the control signal and perform digital-to-analog conversion;

[0009] The operational amplifier module is electrically connected to the central processing unit and the digital-to-analog converter respectively, and is also used to be electrically connected to the glass body. The operational amplifier module is used to obtain the amplified signal and the control signal converted by the digital-to-analog converter, and amplify the converted control signal based on the amplified signal to obtain a dimming signal, and transmit the dimming signal to the glass body. The dimming signal is used to adjust the light transmittance of the glass body.

[0010] According to the dimming system described in one embodiment of the present disclosure, the operational amplifier module includes a digital potentiometer and an operational amplifier;

[0011] 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 to be electrically connected to the glass body;

[0012] The digital potentiometer is used to receive the amplified signal and output a bias signal to the operational amplifier. The operational amplifier is used to obtain the bias signal and amplify the converted control signal based on the bias signal to obtain the dimming signal.

[0013] According to the dimming system described in one 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;

[0014] The reset module is used to monitor the electrical working parameters of the central processing unit, and when the electrical working parameters are greater than the parameter threshold, initialize the processing of the central processing unit.

[0015] According to the dimming system described in one embodiment of the present disclosure, the dimming system further includes an analog-to-digital converter;

[0016] The analog-to-digital converter is electrically connected between the light sensor and the central processing unit;

[0017] 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.

[0018] According to a dimming system described in an embodiment of the present disclosure, the dimming system includes a first light sensor and a second light sensor;

[0019] The first light sensor and the second light sensor are electrically connected to the central processing unit respectively, and the first light sensor and the second light sensor are both used to be fixed on the glass body;

[0020] The first light sensor is used to detect a first light intensity on a first side of the glass body, the second light sensor is used to detect a second light intensity on a second side of the glass body, the central processing unit is used to obtain the first light intensity and the second light, and determine a corresponding control signal and an amplification signal based on the first light intensity and the second light intensity.

[0021] According to the dimming system described in one 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;

[0022] The temperature sensor is used to detect the ambient temperature of the first side of the glass body, and the central processor is used to obtain the light intensity and the ambient temperature, and determine the corresponding control signal and amplification signal based on the light intensity and the temperature.

[0023] According to the dimming system described in one embodiment of the present disclosure, the dimming system further includes a voltage conversion module;

[0024] 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;

[0025] 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 port is electrically connected to the operational amplifier module and the central processing unit respectively.

[0026] According to a second aspect of the present disclosure, a dimming method is provided, the method comprising:

[0027] Detecting actual environmental parameters of at least one side of the glass body;

[0028] Determine the corresponding control signal and amplified signal from the pre-stored correspondence between the environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter;

[0029] A dimming signal is generated according to the control signal and the amplified signal and output to the glass body, wherein the dimming signal is used to adjust the light transmittance of the glass body.

[0030] According to the method described in one embodiment of the present disclosure,

[0031] The actual environmental parameters include a first light intensity on a first side of the glass body and a second light intensity on a second side opposite to the first side, wherein the second side of the glass body faces the external environment after installation;

[0032] The determining the corresponding control signal and amplified signal from the correspondence between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter comprises:

[0033] Determining that the first light intensity is within a light threshold range and the second light intensity is greater than the light threshold;

[0034] 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 a first light difference range, determining a corresponding first sub-control signal and a first sub-amplification signal;

[0035] 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 a second light difference range, determining a corresponding second sub-control signal and a second sub-amplification signal;

[0036] 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 a third light difference range, determining a corresponding third sub-control signal and a third sub-amplification signal;

[0037] 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 fourth illumination difference range, a corresponding fourth sub-control signal and a fourth sub-amplification signal are determined.

[0038] According to the method described in one embodiment of the present disclosure,

[0039] The actual environmental parameters include an environmental temperature of a first side of the glass body, a first light intensity of the first side, and a second light intensity of a second side opposite to the first side, wherein the second side of the glass body after installation faces the external environment;

[0040] The determining the corresponding control signal and amplified signal from the correspondence between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter comprises:

[0041] 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 the light threshold;

[0042] 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 a fifth light difference range, determining a corresponding fifth sub-control signal and a fifth sub-amplification signal;

[0043] 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 a sixth light difference range, determining a corresponding sixth sub-control signal and a sixth sub-amplification signal;

[0044] 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 a seventh light difference range, determining a corresponding seventh sub-control signal and a seventh sub-amplification signal;

[0045] 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 an eighth illumination difference range, a corresponding eighth sub-control signal and an eighth sub-amplification signal are determined.

[0046] According to a third aspect of the present disclosure, a dimming glass is provided, comprising:

[0047] A glass body, and the dimming system described in the first aspect above;

[0048] The light sensor is fixedly connected to the glass body, and the operational amplifier module is electrically connected to the glass body.

[0049] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0051] Figure 1 A schematic structural diagram of a dimming system provided in an embodiment of the present disclosure.

[0052] Figure 2 A schematic diagram of the installation structure of a sensor on a glass body provided in an embodiment of the present disclosure.

[0053] Figure 3 A schematic diagram of the structure of another dimming system provided in an embodiment of the present disclosure.

[0054] Figure 4 A schematic diagram of another dimming system structure provided in an embodiment of the present disclosure.

[0055] Figure 5 A schematic diagram of the structure of another dimming system provided in an embodiment of the present disclosure.

[0056] Figure 6 A schematic diagram of a dimming method provided in an embodiment of the present disclosure.

[0057] Figure 7 A flowchart of a method for determining a control signal and an amplified signal provided in an embodiment of the present disclosure.

[0058] Figure 8A flowchart of another method for determining a control signal and an amplified signal provided in an embodiment of the present disclosure.

[0059] Description of reference numerals:

[0060] 1. Glass body; 2. Dimming system;

[0061] 21. Light sensor; 22. CPU; 23. DAC; 24. Operational amplifier module; 25. ADC; 26. Temperature sensor; 27. Voltage conversion module; 28. Reset module; 29. ​​Storage module; 210. Crystal oscillator module; 211. Communication module;

[0062] 201, a first light sensor; 202, a second light sensor;

[0063] 241. Digital potentiometer; 242. Operational amplifier. DETAILED DESCRIPTION

[0064] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0065] 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 "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0066] Figure 1 A structural schematic diagram of a dimming system according to an embodiment of the present disclosure is illustrated. Figure 2 The structural schematic diagram of a glass body according to an embodiment of the present disclosure is illustrated. Figure 1 and Figure 2 As shown, 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 .

[0067] The glass body 1 is installed on the window frame of a high-speed train, and the dimming system 2 is installed in the body of the high-speed train. The high-speed train can be a high-speed train, a subway, a motor train, or other trains with a speed greater than 200 kilometers per hour; or, the glass body 1 is installed on the window frame of a 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 a house, and the dimming system 2 is installed in the house.

[0068] like Figure 1 As shown, the dimming system 2 includes: a light sensor 21, a central processing unit 22, a digital-to-analog converter 23 and an operational amplifier module 24. The light sensor 21 is electrically connected to the central processing unit 22, and the central processing unit 22 is electrically connected to the digital-to-analog converter 23 and the operational amplifier module 24 respectively. The central processing unit 22, the analog-to-digital converter 25, the digital-to-analog converter 23, and the operational amplifier module 24 are also used to be electrically connected to an external power supply.

[0069] Among them, the light sensor 21 is used to be fixed on the glass body 1 to detect the light intensity on 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 determine the corresponding control signal and amplified signal from the correspondence between the pre-stored environmental parameter range and the control signal and the amplified signal based on the light intensity; 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 acquired control signal and output it to the operational amplifier module 24; the operational amplifier module 24 is used to amplify the control signal after digital-to-analog conversion according to the acquired amplified signal to obtain a dimming signal, and output the obtained dimming signal to the glass body 1 to adjust the loaded voltage on the glass body 1, thereby adjusting the transmittance of the glass body 1.

[0070] In the embodiment of the present disclosure, the central processing unit 22 can determine the corresponding control signal and the amplified signal according to the light intensity detected by the light sensor 21. After the control signal is converted by the digital-to-analog converter 23, the operational amplifier module 24 can quantitatively amplify the converted control signal according to the amplified signal 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 accuracy of the transmittance adjustment of the glass body 1.

[0071] Among them, the central processor 22 pre-stores control signals and amplified signals corresponding to multiple environmental parameter ranges, so that in the process of adjusting the transmittance of the glass body 1, the central processor 22 determines the corresponding environmental parameter range according to the acquired light intensity, and then determines the corresponding control signal and amplified signal according to the corresponding environmental parameter range. That is, the dimming system 2 provided by the embodiment of the present disclosure can accurately determine the control signal and amplified signal corresponding to the glass body 1 under different light intensities, thereby improving the accuracy of the transmittance adjustment of the glass body 1 on the basis of the control signal and the amplified signal.

[0072] The control signal and amplification signal 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, the light transmittance that the glass body 1 needs to achieve is set, and then the dimming signal that needs to be loaded on the glass body 1 is determined according to the required light transmittance, and then the corresponding control signal and amplification signal are determined based on the size of the dimming signal, and finally the control signal and amplification signal corresponding to the dimming signal are stored in correspondence with the corresponding first environmental parameter range.

[0073] 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 amplifier module 24, the data input end of the central processing unit 22 is electrically connected to the light sensor 21, the data output end of the central processing unit 22 is electrically connected to the input end of the digital-to-analog converter 23, the control end of the central processing unit 22 is electrically connected to the control end of the operational amplifier module 24, and the output end of the digital-to-analog converter 23 is electrically connected to the input end of the operational amplifier module 24.

[0074] The above-mentioned light sensor 21, central processor 22 and digital-to-analog converter 23 are all conventional electrical modules, and the details can be referred to the relevant technology. For the selection of the above-mentioned electrical modules, in some embodiments, the light sensor 21 is a photosensor, and of course it can also be other types of light sensors 21. For example, for a photosensor, the signal of the light sensor 21 is ADC121S101.

[0075] The central processor 22 may be a processor of the KEA128 series, which is a highly scalable 32-bit ARMCortex-M0+MCU product portfolio, mainly targeting the automotive market. The processors of this series 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 processors of the KEA128 series are an excellent choice for entry-level body controllers or gateway modules, window / sunroof / moonroof controllers, anti-theft devices, or seat / rearview mirror controllers.

[0076] 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 terminal). For bipolar operation, the LTC2641 includes matching scaling resistors used with the external precision operational amplifier module 24 to produce ±VREF output swings at RFB (reference bias signal).

[0077] In some implementations, 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, thereby ensuring the accuracy of the dimming signal output by the operational amplifier module 24, such as Figure 3 As shown, the operational amplifier module 24 includes a digital potentiometer 241 and an operational amplifier 242; the digital potentiometer 241 is electrically connected between the central processing unit 22 and the operational amplifier 242, the digital-to-analog converter 23 is electrically connected to the operational amplifier 242, and the operational amplifier 242 is used to be electrically connected to the glass body 1; the digital potentiometer 241 is used to receive the amplified signal and output the bias signal to the operational amplifier 242, the operational amplifier module 24 is used to obtain the bias signal, and amplify the converted control signal based on the bias signal to obtain a dimming signal.

[0078] In addition to using the digital potentiometer 241 to adjust the amplified signal output by the central processor to the corresponding bias signal, a digital resistor can also be used to adjust the amplified signal output by the central processor to the corresponding bias signal, that is, the operational amplifier module 24 includes not only the digital potentiometer 241 and the operational amplifier 242, but also the digital resistor and the operational amplifier 242. Of course, in addition to using the digital resistor, other electrical devices can also be used to adjust the amplified signal output by the central processor to the corresponding bias signal, and the embodiments of the present disclosure are not limited to this.

[0079] The operational amplifier 242 is a conventional electrical module. When the operational amplifier 242 is selected, the operational amplifier module 24 is exemplified as OPA547. This is a low-cost, high-voltage / high-current operational amplifier module 24 that is very suitable for driving various loads. The OPA547 is powered by a single power supply or a dual power supply to achieve design flexibility. In single-power supply operation, the input common-mode range extends below ground. The OPA547 has internal protection to prevent overheating and current overload. In addition, the OPA547 is designed to provide accurate, user-selected current limit, which allows the current limit to be adjusted from 0mA to 750mA.

[0080] In some embodiments, Figure 1 or Figure 3As shown, the dimming system 2 also includes an analog-to-digital converter 25, which is electrically connected between the light sensor 21 and the central processing unit 22. 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.

[0081] 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, and the embodiment of the present disclosure does not limit this. For example, the model of the analog-to-digital converter 25 selected in the embodiment of the present disclosure is CMOS12, which is a low-power, single-channel, 1-bit analog-to-digital converter 25 with a high-speed serial interface.

[0082] In combination 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 processor 22 .

[0083] In the disclosed embodiment, when adjusting the light transmittance of the glass body 1 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, and the central processor 22 adjusts the light transmittance of the glass body 1 according to the detected light intensity, taking a high-speed train or car equipped with the glass body 1 as an example, when the high-speed train or car passes through a shadow environment such as a building complex or a forest, the light intensity of the external environment of the high-speed train or car detected by the light sensor 21 will change frequently, and at this time, the central processor 22 will frequently adjust the light transmittance of the glass body 1 according to the frequently changing light intensity. Such frequent adjustment of the light transmittance of the glass body 1 is not only easy to cause visual fatigue (discomfort) to the user, but also easy to cause damage to the glass body, reducing the life of the glass body 1.

[0084] In this way, the transmittance of the glass body 1 can be avoided from being frequently adjusted, and at the same time, the adjusted transmittance can be ensured to be more suitable for the current environment. Figure 4 As shown, 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 electrically connected to the data input end of the central processor 22 respectively, and the first light sensor 201 and the second light sensor 202 are both used to be fixed on the glass body 1.

[0085] 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 processor 22 is used to obtain the first light intensity and the second light, and determine the corresponding control signal and amplification signal based on the first light intensity and the second light intensity.

[0086] After the glass body 1 is installed on the window frame, the side of the glass body 1 facing the indoor environment is used as the first side of the glass body 1 , and the side of the glass body 1 facing the external environment is used as the second side of the glass body 1 .

[0087] In this way, the dimming system 2 can adjust the 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, and then determining the control signal and the amplification signal suitable for the current environment according to the first light intensity and the second light intensity, the transmittance of the glass body 1 is adjusted to improve the transmittance adjustment effect of the glass body 1. In addition, when adjusting the transmittance of the glass body 1, the light intensity on both sides of the glass body 1 is considered, avoiding the consideration of the light intensity on one side alone, thereby avoiding frequent adjustments to the transmittance of the glass body 1.

[0088] The specific manner in which the central processor 22 determines 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 be referred to the following embodiments, which will not be described in detail in the embodiments of the present disclosure.

[0089] It should be noted that 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 on the second side of the glass body 1 may also be considered, that is, the ambient temperature of the external environment (exterior of a high-speed train, exterior of a car, exterior of a house) after the glass body 1 is installed. For some areas, the external environment after the glass body 1 is installed is a high temperature environment, so the light transmittance of the glass body 1 can be adjusted by the dimming system including the first temperature sensor 201 and the second sensor 202 without considering the ambient temperature of the external environment.

[0090] For other areas, the external environment may be low temperature after the glass body 1 is installed. In this case, if the external environment temperature on one side of the glass body 1 is detected separately, the central processor 22 adjusts the light transmittance of the glass body 1 according to the detected external environment temperature. Since the external environment is a low temperature environment, that is, the temperature of the external environment is 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.

[0091] In order to ensure the effect of adjusting 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 of the room after the glass body 1 is installed), in addition to determining the control signal and amplification signal corresponding to the current environment according to the light intensity detected by the light sensor 21, 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 the control signal and amplification signal suitable for the current environment can be determined according to the detected light intensity and the ambient temperature detected by the temperature sensor 26. That is, the dimming system 2 includes a temperature sensor 26 in addition to the light sensor 21, and the temperature sensor 26 is electrically connected to the central processor 22; the temperature sensor 26 is used to detect the ambient temperature of the first side of the glass body 1, and the central processor 22 is used to obtain the light intensity and the ambient temperature, and determine the corresponding control signal and amplification signal based on the light intensity and the temperature.

[0092] Among them, the number of light sensors 21 is one, and the light sensor 21 is used to detect the light intensity on the second side of the glass body 1. Of course, the number of light sensors 21 can also be two, and the two light sensors 21 respectively detect the light intensity on the first side and the second side of the glass body 1.

[0093] Take two light sensors 21 as an example. Figure 4 As shown, the dimming system 2 also includes a temperature sensor 26, which 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. The central processing unit 22 is used to obtain the first light intensity, the second light intensity and the ambient temperature, and determine the corresponding control signal and amplification signal based on the first light intensity, the second light intensity and the ambient temperature.

[0094] In this way, the dimming system 2 can adjust the transmittance of the glass body 1 in the second adjustment mode, that is, by detecting 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 of the glass body 1, and then determining the control signal and amplification signal suitable for the current environment according to the first light intensity, the second light intensity and the ambient temperature, thereby adjusting the transmittance of the glass body 1 to improve the transmittance adjustment effect of the glass body 1.

[0095] Among them, the temperature sensor 26 can select a thermistor temperature sensor 26 to collect the ambient temperature. Of course, other types of temperature sensors 26 can also be selected, and the embodiment of the present disclosure does not limit this.

[0096] Among them, the specific way in which the central processor 22 determines 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 be referred to the following implementation, and the implementation of the present disclosure will not be repeated here.

[0097] It should be noted that when the dimming system includes the first light sensor 201, the second light sensor 202 and the temperature sensor 26, the transmittance of the glass body 1 can be adjusted in the first adjustment mode or in the second adjustment mode. In order to switch between the two adjustment modes, the dimming system 2 also includes an external temperature sensor for detecting the external environment temperature of 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 determine whether the external environment of the glass body 1 is currently a high temperature environment or a low temperature environment through the external environment temperature detected by the external temperature sensor. If the external environment is determined to be a high temperature environment, the first adjustment mode is switched to adjust the transmittance of the glass body 1; if the external environment is determined to be a low temperature environment, the second adjustment mode is switched to adjust the transmittance of the glass body 1.

[0098] In the embodiment of the present disclosure, each electrical module included in the dimming system 2 can be powered directly by an external power supply. However, since the working voltages of each electrical module are different and the voltage of the external power supply is relatively high, additional voltage reduction is required, which makes the power supply circuit of the external power supply relatively complicated. Therefore, in order to simplify the power supply circuit, Figure 5 As shown, the dimming system 2 also includes a voltage conversion module 27, which has an input port, a first output port, a second output port, and a third output port. 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 22, the second output port is electrically connected to 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.

[0099] In this way, by using the voltage conversion module 27, multiple output ports with different output voltages can be provided simultaneously to supply power to multiple electrical components at the same time, thereby simplifying the power supply circuit.

[0100] Among them, the voltage conversion module 27 of the embodiment of the present disclosure uses a step-down module 27 of model LMZM23600. The voltage conversion module 27 of model LMZM23600 has output ports of 5V and 3.3V, and an adjustable output port in the range of 2.5V to 15V. The voltage conversion module 27 of model LMZM23600 supports an input voltage range of 4V to 36V, and can provide an output current of up to 500mA, thereby avoiding the separate setting of the step-down circuit. The voltage conversion module 27 of model LMZM23600 provides a true indication of the system status during operation, without the need for additional monitoring components, thereby saving cost and board space.

[0101] In some embodiments, Figure 5 As shown, the dimming system 2 also includes a reset module 28, which is electrically connected to the central processor 22. The reset module 28 is used to monitor the electrical working parameters of the central processor 22, and when the electrical working parameters are greater than the parameter threshold, the central processor 22 is initialized.

[0102] During the operation of the dimming system 2, it is inevitable that due to external factors or factors of the electrical module itself, the point working parameters of the central processor 22 are too large. At this time, the central processor 22 is prone to overload or even crash, which easily affects the accuracy of the control signal and the amplified signal. After the reset module 28 is connected to the central processor 22, the working state of the central processor 22 can be monitored by the reset module 28 to avoid the central processor 22 from being overloaded or even crashing, thereby ensuring the long-term stable operation of the dimming system 2.

[0103] The parameter threshold is pre-stored in the reset module 28. The selection of the reset module 28 can refer to the relevant technology, and the embodiment of the present disclosure will not be described in detail.

[0104] In the disclosed implementation of the present application, 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 in the storage chip configured by the central processor 22 itself. Of course, Figure 5 As shown, the dimming system 2 may also include a storage module 29, which is electrically connected to the central processing unit 22. At this time, different preset conditions, and control signals and amplified signals corresponding to each preset condition are stored in the storage module 29, and the central processing unit 22 can call the control signals and amplified signals corresponding to different preset conditions in the storage module 29 through communication with the storage module 29.

[0105] In addition, in addition to storing control signals and amplified signals corresponding to different preset conditions, the storage module 29 can also provide the space required for upgrading the dimming system 2 to avoid insufficient memory in the storage module 29 when upgrading the dimming system 2.

[0106] The storage module 29 mentioned above can be a solid-state memory or a flash memory to avoid the problem of a long startup time of the dimming system 2 .

[0107] In the embodiment disclosed in the present application, during the operation of the central processor 22, the central processor 22 may operate based on the clock crystal configured by itself. Of course, the clock crystal configured by the central processor 22 itself may have errors, and the accuracy of the operation of the central processor 22 may be low. Therefore, in order to ensure the accuracy of the operation of the central processor 22, such as Figure 5 As shown, the dimming system 2 also includes a crystal oscillator module 210, which is electrically connected to the central processor 22. In this way, a crystal oscillator module 210 with higher accuracy can be selected with reference to the relevant counts, and the selected crystal oscillator module 210 is electrically connected to the central processor 22 to ensure the accuracy of the central processor 22 during operation. For example, the crystal oscillator module 210 is an active crystal oscillator.

[0108] In the embodiment of the present disclosure, the light transmittance of the glass body 1 can be adjusted in an automatic adjustment mode, that is, the central processor 22 adjusts the light transmittance of the glass body 1 according to the acquired light intensity; of course, the light transmittance of the glass body 1 can also be adjusted in a manual adjustment mode, that is, when the central processor 22 receives an adjustment signal, the light transmittance of the glass body 1 is adjusted according to the adjustment signal. In order to realize the manual adjustment mode, Figure 5 As shown, the dimming system 2 also includes a communication module 211, which is electrically connected to the central processor 22. In this way, when in manual adjustment mode, the adjustment signal can be received through the communication module 211 for adjustment, so that it is easy to adjust according to user needs and improve user stickiness.

[0109] In the embodiment of the present disclosure, in combination with the dimming system 2 described in the above embodiment, Figure 1 and Figure 2 As shown, 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 .

[0110] Among them, the light sensor 21 is fixed on the glass body 1. When the detection end of the light sensor 21 is facing the first side of the glass body 1, it is used to detect the light intensity on the first side of the glass body 1; when the detection end of the light sensor 21 is facing the second side of the glass body 1, it is used to detect the light intensity on the second side of the glass body 1.

[0111] In some embodiments, the glass body 1 includes at least a liquid crystal layer and a conductive layer located on both sides of the liquid crystal layer. The specific structure can refer to the relevant technology, and the embodiments of the present disclosure are not limited to this. For example, the glass body 1 includes a bottom conductive layer, an ion storage layer, an ion conduction 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 a metal oxide, a conductive transparent nitride, a transparent metal and a transparent alloy, the material of the electrochromic layer includes one of tungsten oxide, titanium oxide, copper oxide, vanadium oxide, etc., the material of the ion conduction layer includes one of lithium oxide, silicon dioxide, aluminum oxide, tantalum oxide, etc., and the material of the ion storage layer includes one of vanadium oxide, niobium oxide, nickel oxide, cobalt oxide, etc.

[0112] Combined with the structure of the glass body 1 described above, the light sensor 21 is fixed in the glass body 1, that is, fixed between any two structural layers included in the glass body 1. For example, the light sensor 21 is fixed between the conductive layer and the liquid crystal layer. Of course, in addition to being fixed in the glass body 1, the light sensor 21 can 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. The embodiment of the present disclosure does not limit the installation method of the light sensor 21.

[0113] In some embodiments, Figure 2 As shown, 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 detection end of the first light sensor 201 faces the first side of the glass body 1, and the detection end of the second light sensor 202 faces the second side of the glass body 1. The first light sensor 201 is used to detect the light intensity on the first side of the glass body 1, and the second light sensor 202 is used to detect the light intensity on the second side of the glass body 1.

[0114] 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 built into 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 need to install the first light sensor 201 and the second light sensor 202 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, Figure 2 As shown, the first light sensor 201 and the second light sensor 202 are both located on the top of the glass body 1, and the first light sensor 201 is fixed at a position close to the left side of the glass body 1, and the second light sensor 202 is fixed at a position close to the right side of the glass body 1.

[0115] In other embodiments, Figure 2 As shown, the dimming system 2 further includes a temperature sensor 26, which is 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. The temperature sensor 26 is used to detect the ambient temperature of the first side of the glass body 1.

[0116] It should be noted that when installing the temperature sensor 26, in order to avoid the influence of the light sensor 21 (such as magnetic interference, etc.), and because the temperature sensor 26 is small in size and does not need to be external, and also for the convenience of wiring, the temperature sensor can be embedded in the window frame at the bottom or side of the glass body 1. Furthermore, since the height of the bottom of the glass body 1 is close to half the height of a high-speed train or car, the indoor ambient temperature can be collected more accurately. Therefore, Figure 2 As shown, the temperature sensor 26 is fixed on the bottom of the glass body 1 .

[0117] Figure 6 The flowchart of a dimming method according to an embodiment of the present disclosure is illustrated, and the method is used to adjust the light transmittance of the glass body. Figure 6 As shown, the method includes the following steps S601-S603.

[0118] S601, detecting actual environmental parameters of at least one side of the glass body.

[0119] S602: Determine a corresponding control signal and an amplified signal from a pre-stored correspondence relationship between an environmental parameter range and a control signal and an amplified signal according to actual environmental parameters.

[0120] S603 , amplify the control signal according to the amplified signal to obtain a dimming signal, and output the dimming signal to the glass body, where the dimming signal is used to adjust the light transmittance of the glass body.

[0121] In the embodiment of the present disclosure, after the actual environmental parameters are detected, the corresponding control signal and the amplification signal can be determined according to the actual environmental parameters, and then the control signal is amplified according to the amplification signal to obtain a quantitatively amplified voltage regulation signal, so that after the voltage regulation signal is output to the glass body, the transmittance of the glass body can be accurately adjusted, thereby ensuring the accuracy of the transmittance adjustment of the glass body.

[0122] The above steps S601-S603 can be performed by the dimming system described in the above embodiment, and can also be performed by other dimming systems. Next, the above steps S601-S603 are explained in detail.

[0123] 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, and the actual environmental parameters include the light intensity and the ambient temperature.

[0124] For the light sensor, if the detection end of the light sensor is toward the first side of the glass body, the detection result is the light intensity on the first side of the glass body; if the detection end of the light sensor is toward the second side of the glass body, the detection 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 is toward the first side of the glass body, the detection result is the ambient temperature on the first side of the glass body; if the detection end of the temperature sensor is toward the second side of the glass body, the detection result is the ambient temperature on the second side of the glass body.

[0125] Of course, the executor of the above step S601 may also be the central processor included in the dimming system. In this case, after the sensors included in the dimming system detect the actual environmental parameters, the central processor obtains the actual environmental parameters from the sensors to realize the detection of the actual environmental parameters.

[0126] The execution subject of the above step S602 may be a central processor included in the dimming system. If the execution subject of the above step S601 is each sensor included in the dimming system, after the actual environmental parameters are detected in step S601, each sensor needs to transmit the detected actual environmental parameters to the central processor, and then execute the control signal and amplification signal corresponding to the actual environmental parameters in step S602.

[0127] Among them, the central processor pre-stores control signals and amplified signals corresponding to multiple environmental parameter ranges, so that in the process of adjusting the transmittance of the glass body, the central processor determines the corresponding environmental parameter range according to the actual environmental parameters obtained, and then determines the corresponding control signal and amplified signal according to the corresponding environmental parameter range. That is, the dimming system provided by the embodiment of the present disclosure can accurately determine the control signal and amplified signal corresponding to the glass body under different environmental parameters, thereby improving the accuracy of the transmittance adjustment of the glass body on the basis of the control signal and the amplified signal.

[0128] In some embodiments, in order to improve the effect of adjusting the transmittance of the glass body, a first light sensor for detecting the light intensity on the first side of the glass body and a second light sensor for detecting the light intensity on the second side of the glass body are usually provided. That is, the dimming system includes the first light sensor and the 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, and the second side of the glass body after installation faces the external environment.

[0129] In this case, if Figure 7 As shown, the above step S602 includes determining the corresponding control signal and amplification signal according to the first light intensity and the second light intensity, which can be implemented by the following steps S6021A-S6025A.

[0130] S6021A: Determine that the first light intensity is within a light threshold range and that the second light intensity is greater than the light threshold.

[0131] 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, after the light intensity on the second side of the glass body changes, in order to ensure the accuracy of adjusting the light transmittance of the glass body, the first light intensity on the first side of the glass body can be determined first, and then the light transmittance of the glass body can be adjusted based on the first light intensity and the second light intensity.

[0132] In 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 environment. Therefore, in a certain application scene, it is first determined whether the first light intensity is within the light threshold range corresponding to the application scene, and whether the second light intensity is greater than the light threshold.

[0133] For example, in combination with the application scenario of the high-speed train described in the above embodiment, 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.

[0134] 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 execute the following steps S6022A-S6025A.

[0135] 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 a corresponding first sub-control signal and a first sub-amplification signal.

[0136] Continuing with 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 first environmental parameter range pre-stored in the central processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 1500 lux and less than 4000 lux.

[0137] S6023A: 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 second illumination difference range, determine a corresponding second sub-control signal and a second sub-amplification signal.

[0138] Continuing with 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 processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 4000 lux and less than 7000 lux.

[0139] S6024A: 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 a corresponding third sub-control signal and a third sub-amplification signal.

[0140] Continuing with 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 processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 7000 lux and less than 12000 lux.

[0141] S6025A: 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 fourth illumination difference range, determine a corresponding fourth sub-control signal and a fourth sub-amplification signal.

[0142] Continuing with the example of the above application scenario, the fourth illumination difference range is greater than or equal to 12,000 lux, that is, the fourth environmental parameter range pre-stored in the central processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 12,000 lux.

[0143] It should be noted that, taking the example that the greater the loaded voltage on the glass body, the greater the transmittance, the loaded voltages corresponding to the first dimming signal, the second dimming signal, the third dimming signal, and the fourth dimming signal gradually decrease, so that the greater the second light intensity, the smaller the transmittance of the glass body.

[0144] In the embodiment of the present disclosure, in combination 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.

[0145] Among them, the execution body of the above-mentioned step S603 includes an operational amplifier 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 amplifier 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 control signal after digital-to-analog conversion according to the amplified signal to obtain a dimming signal.

[0146] If the first sub-control signal and the first sub-amplification signal are determined in the above step S602, step S603 includes: generating a first dimming signal according to the first sub-control signal and the first sub-amplification signal, and outputting the first dimming signal to the glass body, wherein the first dimming signal is used to adjust the transmittance of the glass body.

[0147] If the second sub-control signal and the second sub-amplified signal are determined in the above step S602, step S603 includes: generating a second dimming signal according to the second sub-control signal and the second sub-amplified signal, and outputting the second dimming signal to the glass body, wherein the second dimming signal is used to adjust the transmittance of the glass body.

[0148] If the third sub-control signal and the third sub-amplified signal are determined in the above step S602, 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, wherein the third dimming signal is used to adjust the transmittance of the glass body.

[0149] If the fourth sub-control signal and the fourth sub-amplified signal are determined in the above step S602, 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, wherein the fourth dimming signal is used to adjust the transmittance of the glass body.

[0150] In other embodiments, in order to further improve the effect of adjusting the transmittance of the glass body so that the dimming method can also be applied to low-temperature environments, a temperature sensor for detecting the ambient temperature of 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, and the second side of the glass body after installation faces the external environment.

[0151] In this case, if Figure 8As shown, the above step S602 includes determining the corresponding control signal and amplified signal according to the first light intensity, the second light intensity and the ambient temperature, which can be implemented through the following steps S6021B-S6025B.

[0152] S6021B, determine 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 the light threshold.

[0153] 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 is usually kept at a constant value when the user is indoors, after the light intensity on the second side of the glass body changes, in order to ensure the accuracy of adjusting the light transmittance of the glass body, the ambient temperature and the first light intensity on the first side of the glass body can be determined first, and then the light transmittance of the glass body can be adjusted based on the first light intensity and the second light intensity.

[0154] 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. 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, it is first determined 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.

[0155] 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 light threshold range is greater than or equal to 5000 lux and less than or equal to 7000 lux, and the light threshold is 8000 lux.

[0156] 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 execute the following steps S6022A-S6025A.

[0157] S6022B: 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 fifth illumination difference range, determine a corresponding fifth sub-control signal and a fifth sub-amplification signal.

[0158] Continuing with 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 processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 1200 lux and less than 3000 lux.

[0159] S6023B: 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 sixth illumination difference range, determine a corresponding sixth sub-control signal and a sixth sub-amplification signal.

[0160] Continuing with 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 processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 3000 lux and less than 6000 lux.

[0161] S6024B: 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 seventh illumination difference range, determine a corresponding seventh sub-control signal and a seventh sub-amplification signal.

[0162] Continuing with 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 processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 6000 lux and less than 11000 lux.

[0163] S6025B: 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 an eighth illumination difference range, determine a corresponding eighth sub-control signal and an eighth sub-amplification signal.

[0164] Continuing with the example of the above application scenario, the eighth illumination difference range is greater than or equal to 11,000 lux, that is, the eighth environmental parameter range pre-stored in the central processor is that the illumination difference obtained by subtracting the first illumination intensity from the second illumination intensity is greater than or equal to 11,000 lux.

[0165] It should be noted that, taking the example that the greater the loaded voltage on the glass body, the greater the transmittance, the loaded voltages corresponding to the fifth dimming signal, the sixth dimming signal, the seventh dimming signal, and the eighth dimming signal respectively decrease gradually, so that the greater the second light intensity, the smaller the transmittance of the glass body.

[0166] In the embodiment of the present disclosure, in combination 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.

[0167] Among them, the execution body of the above-mentioned step S603 includes an operational amplifier 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 amplifier 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 control signal after digital-to-analog conversion according to the amplified signal to obtain a dimming signal.

[0168] If the fifth sub-control signal and the fifth sub-amplified signal are determined in the above step S602, 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, wherein the fifth dimming signal is used to adjust the transmittance of the glass body.

[0169] If the sixth sub-control signal and the sixth sub-amplified signal are determined in the above step S602, 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, wherein the sixth dimming signal is used to adjust the transmittance of the glass body.

[0170] If the seventh sub-control signal and the seventh sub-amplified signal are determined in the above step S602, step S603 includes: generating a seventh dimming signal according to the seventh sub-control signal and the seventh sub-amplified signal, and outputting the seventh dimming signal to the glass body, wherein the seventh dimming signal is used to adjust the transmittance of the glass body.

[0171] If the eighth sub-control signal and the eighth sub-amplified signal are determined in the above step S602, 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, wherein the eighth dimming signal is used to adjust the transmittance of the glass body.

[0172] It should be noted that the implementation process described in some of the above embodiments corresponds to the implementation process in the first adjustment mode in the above disclosed embodiments; the implementation process described in other of the above embodiments corresponds to the implementation process in the above disclosed embodiments. The specific selection of some of the above embodiments and other embodiments can refer to whether the external environment of the glass body 1 in the above disclosed embodiments is a high temperature environment or a low temperature environment.

[0173] It should be noted that, although the steps of the control method of the dimming glass in the present disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0174] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A dimming system for adjusting the light transmittance of a glass body, wherein: The dimming system comprises: A light sensor, used to be fixed on the glass body, and the light sensor is used to detect the light intensity on at least one side of the glass body; A central processing unit is electrically connected to the light sensor, and is used to obtain the light intensity, and determine the corresponding control signal and amplified signal from the pre-stored correspondence between the environmental parameter range and the control signal and the amplified signal based on the light intensity; A digital-to-analog converter, electrically connected to the central processing unit, and used to obtain the control signal and perform digital-to-analog conversion; an operational amplifier module, electrically connected to the central processing unit and the digital-to-analog converter respectively, and also electrically connected to the glass body, the operational amplifier module is used to obtain the amplified signal and the control signal converted by the digital-to-analog converter, and amplify the converted control signal based on the amplified signal to obtain a dimming signal, and transmit the dimming signal to the glass body, the dimming signal is used to adjust the light transmittance of the glass body; Wherein, the dimming system includes a first light sensor and a second light sensor, the first light sensor and the second light sensor are electrically connected to the central processing unit respectively, and 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 a first light intensity on the first side of the glass body when the detection end is toward the first side of the glass body, and the second light sensor is used to detect a second light intensity on the second side of the glass body when the detection end is toward the second side of the glass body, and the central processing unit is used to obtain the first light intensity and the second light intensity, and when the first light intensity is within the light threshold range and the second light intensity is greater than the light threshold, determine the corresponding control signal and amplification signal based on the first light intensity and the second light intensity.

2. The dimming system according to claim 1, wherein: 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 to be electrically connected to the glass body; The digital potentiometer is used to receive the amplified signal and output a bias signal to the operational amplifier. The operational amplifier is used to obtain the bias signal and amplify the converted control signal based on the bias signal to obtain the dimming signal.

3. The dimming system according to claim 1, wherein: 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 to monitor the electrical working parameters of the central processing unit, and when the electrical working parameters are greater than the parameter threshold, initialize the processing of the central processing unit.

4. The dimming system according to claim 1, wherein: The dimming system also 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.

5. The dimming system according to any one of claims 1 to 4, wherein: 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 of the first side of the glass body, and the central processor is used to obtain the light intensity and the ambient temperature, and determine the corresponding control signal and amplification signal based on the light intensity and the temperature.

6. The dimming system according to claim 1, wherein: The dimming system also 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 port is electrically connected to the operational amplifier module and the central processing unit respectively.

7. A dimming method for adjusting the light transmittance of a glass body, wherein: The method comprises: Detecting actual environmental parameters of at least one side of the glass body, the actual environmental parameters comprising a first light intensity of the first side of the glass body detected by the first light sensor when the detection end is toward the first side of the glass body, and a second light intensity of the second side of the glass body detected by the second light sensor when the detection end is toward the second side of the glass body, the second side of the glass body facing the external environment after installation; When the first illumination intensity is within the illumination threshold range and the second illumination intensity is greater than the illumination threshold, determining the corresponding control signal and amplified signal from the pre-stored correspondence between the 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, and the dimming signal is output to the glass body, wherein the dimming signal is used to adjust the light transmittance of the glass body.

8. The method of claim 7, wherein: The determining the corresponding control signal and amplified signal from the correspondence between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter comprises: 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 a first light difference range, determining a corresponding first sub-control signal and a first sub-amplification signal; 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 a second light difference range, determining a corresponding second sub-control signal and a second sub-amplification signal; 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 a third light difference range, determining a corresponding third sub-control signal and a third sub-amplification 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 fourth illumination difference range, a corresponding fourth sub-control signal and a fourth sub-amplification signal are determined.

9. The method of claim 7, wherein: The actual environmental parameter also includes the environmental temperature of the first side of the glass body; The determining the corresponding control signal and amplified signal from the correspondence between the pre-stored environmental parameter range and the control signal and the amplified signal according to the actual environmental parameter comprises: Determining that the ambient temperature is within a temperature threshold range; 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 a fifth light difference range, determining a corresponding fifth sub-control signal and a fifth sub-amplification signal; 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 a sixth light difference range, determining a corresponding sixth sub-control signal and a sixth sub-amplification 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 seventh illumination difference range, determining a corresponding seventh sub-control signal and a seventh sub-amplification 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 an eighth illumination difference range, a corresponding eighth sub-control signal and an eighth sub-amplification signal are determined.

10. A dimming glass, wherein: include: A glass body, and a dimming system as described in any one of claims 1 to 6; The light sensor is fixedly connected to the glass body, and the operational amplifier module is electrically connected to the glass body.

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