Dimming glass control system for conference room

Abstract

The invention relates to the technical field of intelligent buildings, and particularly discloses a dimming glass control system for a conference room, which comprises dimming glass, an illumination sensor, a temperature sensor, a humidity sensor, an occupation sensor, an intelligent control unit and a human-computer interaction interface, the dimming glass is electrochromic glass; the illumination sensor is responsible for monitoring the environment illumination intensity in real time; the temperature sensor is used for detecting the change of the environment temperature; the humidity sensor is used for monitoring the relative humidity change in the environment; the occupancy sensor detects a personnel occupancy state in a conference room; the intelligent control unit receives data from the sensor, dynamically calculates the optimal transparency of the dimming glass through control logic based on a PLC and an artificial intelligence algorithm, and adjusts the light environment. According to the method, various factors such as illumination, temperature and occupation state are comprehensively considered, the energy-saving requirements of modern buildings are responded, the optimal transparency of the dimming glass is dynamically calculated, and the light environment is adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent buildings, and more specifically, to a dimming glass control system for a meeting room. Background Art

[0002] The light environment adjustment of traditional meeting rooms usually relies on manually operated curtains or blinds. This method has the problems of cumbersome adjustment and lack of precision, and cannot quickly respond to external light changes, making it difficult to provide a comfortable light environment in case of direct strong light or insufficient light. Although devices such as electric curtains have improved convenience to a certain extent, their intelligence level is low and they lack the dynamic response ability to real-time environmental feedback. The emergence of intelligent dimming glass technology has brought new opportunities for light environment control. Among them, electrochromic glass has received extensive attention due to its advantages of low power consumption and high precision. However, the current technology still has bottlenecks such as slow response speed, high energy consumption and cost. Especially under complex environmental requirements, its dimming effect is difficult to be satisfactory. As an important part of office spaces, meeting rooms have special requirements for the light environment, such as the dynamic balance of natural lighting and sunshading, privacy protection, and the comfort of participants. These requirements make the management of the meeting room light environment need to be more precise and intelligent. At the same time, in response to the energy-saving requirements of modern buildings, the light environment control also needs to be coordinated and optimized with air conditioners and lighting systems to reduce energy consumption and improve the overall usage experience. However, most of the current intelligent dimming glass systems on the market are based on a single parameter for control, and it is difficult to comprehensively consider various factors such as light, temperature, and occupancy status. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a dimming glass control system for a meeting room. Through the real-time monitoring of light, temperature, humidity, and occupancy sensors, environmental data input is provided. Based on a PLC and an artificial intelligence algorithm, the optimal transparency of the dimming glass is dynamically calculated. In case of strong light, low light, or unoccupied state, the balance between comfort and energy-saving requirements can be achieved. Through the Internet of Things protocol, it is linked with air conditioners and lighting devices, and the operating states of each device are synchronously adjusted according to real-time environmental data, so as to solve the problems raised in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A dimming glass control system for a meeting room, comprising a dimming glass, a light sensor, a temperature sensor, a humidity sensor, an occupancy sensor, an intelligent control unit, and a human-machine interaction interface; the response time of the dimming glass is within 1 second to 5 seconds, and its internal circuit design includes a protection mechanism. When the glass is in a high-voltage working state, the over-current protection device in the circuit ensures the safe operation of the components and prevents damage to the glass caused by abnormal current; the light sensor is responsible for real-time monitoring of the ambient light intensity; the temperature sensor is used to detect changes in the ambient temperature; the humidity sensor is used to monitor changes in the relative humidity in the environment; the occupancy sensor detects the occupancy status of people in the meeting room; the intelligent control unit, based on the control logic of PLC and artificial intelligence algorithms, dynamically calculates the optimal transparency of the dimming glass and adjusts the light environment; the human-machine interaction interface provides an intuitive and convenient operation entry for users and realizes the management of system functions;

[0006] The dynamic calculation of the optimal transparency of the dimming glass and the adjustment of the light environment include the following specific steps:

[0007] Step Z1, the PLC processes various sensor input signals in real time and realizes complex control through programming logic. For situations with high real-time requirements, the PLC establishes a logic control model and quickly executes predefined logic rules;

[0008] Step Z2, based on artificial intelligence algorithms, comprehensively analyze multi-dimensional environmental data, and establish an optimal transparency calculation model to dynamically calculate the optimal transparency value of the dimming glass in real time.

[0009] As a further aspect of the present invention, the dimming glass uses electrochromic glass, which can achieve a rapid switch of transparency from completely transparent to completely opaque by adjusting the electric field distribution. The specific content includes: The dimming glass adopts electrochromic technology, and adjusts the ion distribution in the glass by applying an external electric field, thereby realizing the dynamic change of transparency. It is composed of multiple composite materials, and the composite materials include a transparent conductive layer, an electrochromic layer, an electrolyte layer, a counter electrode layer, etc. The transparency adjustment of the dimming glass is based on the insertion and extraction reactions of ions in the electrochromic layer driven by an applied voltage. The transparent conductive layer uses indium tin oxide (ITO) or aluminum zinc oxide (AZO) to ensure high optical transparency and conductivity. The electrochromic layer uses tungsten oxide (WO3) material, which has excellent reversible color-changing performance. The conductivity of the material changes under the action of an external electric field, thereby changing its color or transparency. When an applied voltage acts on this material, charge transfer will cause the migration of electrons and ions inside the material, thus changing the optical properties of the material and enabling a rapid switch between transparent and opaque states under the action of voltage. To further improve the performance of the dimming glass, an anti-ultraviolet coating can also be added inside the glass to enhance durability and delay the photoaging process. The external structure of the dimming glass is designed in a multi-layer laminated form, and the intermediate layer is filled with polyvinyl butyral (PVB) or thermoplastic polyurethane (TPU) material, which not only improves the safety performance of the glass but also enhances the sound insulation and heat insulation effects.

[0010] The dimming glass can automatically adjust its transparency according to the ambient light intensity, indoor needs or user settings. Its response time is within 1 second to 5 seconds, meeting the requirements of efficient adjustment. Users can select different dimming modes through the intelligent control unit, such as fully transparent, semi-transparent and completely opaque modes, to adapt to different scenario requirements. In addition, to improve the safety and maintainability of the dimming glass, the internal circuit design of the dimming glass includes multiple protection mechanisms. When the glass is in a high-voltage working state, the over-current protection device in the circuit will ensure the safe operation of the components and prevent damage to the glass caused by abnormal current. When a system failure occurs, the dimming glass can maintain the current transparency state through power-off holding technology, providing users with sufficient response time to switch to the manual control mode.

[0011] As a further aspect of the present invention, the light sensor is responsible for real-time monitoring of the ambient light intensity. The specific content includes: The light sensor is arranged near the window and placed in an unobstructed area to sense the changes in external light in real time. For the real-time changes in sunlight (such as sudden occlusion of sunlight by clouds or gradual changes during sunrise and sunset), the light sensor can respond in milliseconds and feed the changed data back to the intelligent control unit.

[0012] As a further aspect of the present invention, a temperature sensor is used to detect changes in the ambient temperature, including the following specific details: The temperature sensor can monitor the indoor and outdoor temperatures in real time. Since the optical properties (such as light transmittance and color stability) of the dimming glass are affected by temperature, it is necessary to adjust and control in a timely manner through the temperature sensor. When the external ambient temperature is too high, the data of the temperature sensor will trigger the control system to reduce the transparency of the glass, thereby reducing the solar radiation entering the room and reducing the load on the air conditioning system.

[0013] As a further aspect of the present invention, a humidity sensor is used to monitor changes in the relative humidity in the environment, including the following specific details: The humidity sensor usually measures the water vapor content in the air through capacitive, impedance or thermal principles, obtains relative humidity data, and converts it into an electrical signal, which is transmitted to the intelligent control unit. The humidity sensor can help the dimming glass adapt to different environmental conditions by monitoring the humidity level. For example, in a high-humidity environment, the data of the humidity sensor can be used to adjust the dynamic response of the dimming glass to avoid problems such as a decrease in light transmittance or blurred vision caused by dew condensation or water vapor condensation on the glass surface.

[0014] As a further aspect of the present invention, an occupancy sensor detects the occupancy status of people in the meeting room, including the following specific details: The occupancy sensor is based on infrared technology and can accurately sense the movement or stillness of the human body by detecting the infrared thermal radiation emitted by the human body, thereby judging the usage situation of the space.

[0015] As a further aspect of the present invention, multi-source data obtained from a light sensor, a temperature sensor, a humidity sensor, and an occupancy sensor are fused to achieve precise perception and control of a complex environment. The calculation formula for the multi-source data fusion is: where F is the result of the sensor fusion data fusion, n is the number of sensors participating in the data fusion, x i is the observation value of the i-th sensor, w i is the weight of the i-th sensor, and ε is the error of the sensor measurement.

[0016] As a further solution of the present invention, the intelligent control unit receives data from sensors and dynamically calculates the optimal transparency of the dimming glass through a control logic based on PLC and artificial intelligence algorithms to adjust the light environment, including the following specific contents: The PLC can process multiple sensor input signals in real time and achieve complex control through programming logic. The artificial intelligence algorithm analyzes the current light intensity, occupancy status, and temperature and humidity data, and comprehensively calculates an optimal transparency value, thereby instructing the dimming glass to adjust to a light transmittance suitable for meeting requirements, avoiding glare and ensuring indoor comfort. The PLC quickly executes predefined logic rules to establish a logic control model for situations with high real-time requirements, such as sudden changes in light intensity. The formula of the logic control model is:

[0017]

[0018] S i (t) = g i (V i (t));

[0019] In the formula: U(t) is the PLC output signal used to drive the transparency adjustment of the dimming glass, ranging from 0 to 1, representing the light transmittance of the glass (0 means completely opaque, 1 means completely transparent); f is the output mapping function that converts the comprehensive calculation result into a specific control signal, satisfying T low <x<T high , where, T low is the low threshold, defining the environmental state where the glass is completely opaque, and T high is the high threshold, defining the environmental state where the glass is completely transparent; n is the number of sensors; w i is the weight of the i-th sensor; S i (t) is the state signal of the i-th sensor after being processed by the PLC logic rules, ranging from 0 to 1; g i is the logic function of the i-th sensor; V i (t) is the original measurement value of the i sensors at time t.

[0020] The artificial intelligence algorithm comprehensively analyzes multi-dimensional environmental data, establishes an optimal transparency calculation model to calculate the optimal transparency value of the dimming glass in real time and dynamically. The formula of the optimal transparency calculation model is:

[0021] T = σ(w 1 ·L + w 2 ·θ + w 3 H + w 4 ·O + b);

[0022] Where: T is the optimal transparency value of the dimming glass, ranging from 0 to 1, which is used to control the light transmittance of the glass (0 means completely opaque, 1 means completely transparent); σ is the Sigmoid activation function, which is used to smooth the output of the model; L is the ambient light intensity measured by the light sensor, and the standardized range is from 0 to 1; w 1 reflects the contribution degree of light intensity to the transparency calculation; θ is the ambient temperature measured by the temperature sensor, and the standardized range is from 0 to 1; w 2 reflects the contribution degree of temperature to the transparency calculation; H is the ambient humidity measured by the humidity sensor, and the standardized range is from 0 to 1; w 3 reflects the contribution degree of humidity to the transparency calculation; O is the meeting room occupancy status provided by the occupancy sensor, which is a binary value, 1 means the room is occupied, 0 means unoccupied; b is the bias, which is used to adjust the reference value of the overall transparency.

[0023] The intelligent control unit also comprehensively processes the environmental data such as light intensity, temperature, humidity and occupancy status from the sensors and the operating parameters of the air conditioning and lighting systems, dynamically adjusts the operating states of each system, and realizes energy-saving optimization. When the external light intensity increases, the intelligent control unit instructs the dimming glass to reduce the transparency to reduce the solar radiation heat, and at the same time controls the air conditioning system to reduce the cooling load, thereby reducing the energy consumption. In addition, when the light intensity is insufficient, the dimming glass is preferentially adjusted to the high transparency state to introduce natural light and reduce the power consumption of the lighting system. The linkage mechanism relies on a centralized building control platform. The intelligent control unit communicates with the air conditioning and lighting devices through the Internet of Things protocol to achieve cross-system data synchronization and control. The linkage mechanism is based on the principle of multi-objective optimization, balancing energy consumption, user comfort and equipment life. When it is detected that the room is not in use, the occupancy sensor will trigger the linkage mechanism. The dimming glass is adjusted to the low transparency state, the air conditioning system switches to the standby mode, and the lighting system is automatically turned off. The linkage mechanism not only saves energy, but also extends the operating life of the equipment.

[0024] As a further solution of the present invention, the human-computer interaction interface provides an intuitive and convenient operation entry for users and realizes the management of system functions, including the following specific contents: The human-computer interaction interface includes a touch screen, voice control and a mobile application, which meet the operation habits of different users. The touch screen is installed on the wall of the meeting room. Users can adjust the transparency of the dimming glass, set the environmental mode by sliding or clicking, and view the current glass transparency value, light intensity and temperature and humidity data in real time. The voice control is through the intelligent voice assistant, and users can directly issue instructions to adjust the glass state or switch the mode. The mobile application expands the scope of interaction. Users can remotely control the dimming glass through a smart phone or tablet device, which is suitable for meeting preparation or early deployment of indoor environment adjustment.

[0025] Technical effects and advantages of a dimming glass control system for a meeting room according to the present invention: The present invention uses electrochromic glass and provides environmental data input through real-time monitoring of light, temperature, humidity, and occupancy sensors. Based on a PLC and an artificial intelligence algorithm, it dynamically calculates the optimal transparency of the dimming glass, and can balance comfort and energy-saving requirements in strong light, low light, or unoccupied states. It is linked with air conditioners and lighting equipment through an Internet of Things protocol, and synchronously adjusts the operating states of each device according to real-time environmental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a dimming glass control system for a meeting room according to the present invention.

[0027] Figure 2 It is a schematic diagram of the installation range of the dimming glass according to the present invention.

[0028] Figure 3 It is a schematic diagram of the control switch setting of the dimming glass according to the present invention.

[0029] Figure 4 It is a fluctuation graph of the indoor and outdoor temperatures monitored in real time by the temperature sensor according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] Referring to Figure 1 the shown schematic structural diagram, the embodiment of the present invention provides a dimming glass control system for a meeting room, which includes a dimming glass, a light sensor, a temperature sensor, a humidity sensor, an occupancy sensor, an intelligent control unit, and a human-machine interface; the dimming glass uses electrochromic glass and realizes a rapid switch of transparency from completely transparent to completely opaque by adjusting the electric field distribution; the light sensor is responsible for real-time monitoring of the environmental light intensity; the temperature sensor is used to detect changes in the environmental temperature; the humidity sensor is used to monitor changes in the relative humidity in the environment; the occupancy sensor detects the personnel occupancy state in the meeting room; the intelligent control unit receives data from the sensors and dynamically calculates the optimal transparency of the dimming glass through a control logic based on a PLC and an artificial intelligence algorithm to adjust the light environment; the human-machine interface provides an intuitive and convenient operation entry for users and realizes the management of system functions.

[0033] Furthermore, the dimming glass uses electrochromic glass and can quickly switch its transparency from completely transparent to completely opaque by adjusting the electric field distribution. The specific details are as follows: The dimming glass adopts electrochromic technology and adjusts the ion distribution in the glass by applying an external electric field, thereby realizing the dynamic change of transparency. It is composed of multiple composite materials, and the composite materials include a transparent conductive layer, an electrochromic layer, an electrolyte layer, a counter electrode layer, etc. The transparency adjustment of the dimming glass is based on the insertion and extraction reactions of ions in the electrochromic layer driven by an applied voltage. The transparent conductive layer uses indium tin oxide (ITO) or aluminum zinc oxide (AZO) to ensure high optical transparency and conductivity. The electrochromic layer uses tungsten oxide (WO3) material, which has excellent reversible color-changing performance. The conductivity of this material changes under the action of an external electric field, thereby changing its color or transparency. When an applied voltage acts on this material, charge transfer will cause the migration of electrons and ions inside the material, thus changing the optical properties of the material and enabling it to quickly switch between transparent and opaque states under the action of voltage. To further improve the performance of the dimming glass, an anti-ultraviolet coating can also be added inside the glass to enhance durability and delay the photoaging process. The external structure of the dimming glass is designed in a multi-layer laminated form, and the intermediate layer is filled with polyvinyl butyral (PVB) or thermoplastic polyurethane (TPU) material, which not only improves the safety performance of the glass but also enhances the sound insulation and heat insulation effects.

[0034] The dimming glass can automatically adjust its transparency according to the ambient light intensity, indoor needs, or user settings, and its response time is within 1 second to 5 seconds, meeting the requirements of efficient adjustment. Users can select different dimming modes through the intelligent control unit, such as fully transparent, semi-transparent, and completely opaque modes, to adapt to different scenario needs. In addition, to improve the safety and maintainability of the dimming glass, the internal circuit design of the dimming glass includes multiple protection mechanisms. When the glass is in a high-voltage working state, the overcurrent protection device in the circuit will ensure the safe operation of the components and prevent damage to the glass caused by abnormal current. When a system failure occurs, the dimming glass can maintain its current transparency state through power-off holding technology, providing users with sufficient response time to switch to the manual control mode.

[0035] In this embodiment, refer to Figure 2 the schematic diagram of the installation range of the dimming glass shown. The dimming glass is installed at the glass partition position of the first-floor meeting room, and the specific position is from B axis / 3 axis to 6 axis and 5 axis / B axis to A axis (including the door of the meeting room).

[0036] In this embodiment, refer to Figure 3Schematic diagram of the control switch settings for the dimming glass shown. All the dimming glass in the large conference room is controlled by one switch, and the output power of the dimming glass switch in the large conference room is 200W; all the dimming glass in the small conference room is controlled by one switch, and the output power of the dimming glass switch in the small conference room is 100W. The dimming glass in the middle partition wall is set in a dual-control form for the large and small conference rooms.

[0037] In this embodiment, the light sensor is responsible for real-time monitoring of the ambient light intensity, including the following specific contents: The light sensor is arranged near the window and placed in an unobstructed area to perceive the changes in external light in real time. For the real-time changes in sunlight (such as sudden occlusion of sunlight by clouds or gradual changes during sunrise and sunset), the light sensor can respond at the millisecond level and feedback the change data to the intelligent control unit.

[0038] In this embodiment, the temperature sensor is used to detect changes in the ambient temperature, including the following specific contents: Refer to Figure 4 the temperature fluctuation graph shown. The temperature sensor monitors the indoor and outdoor temperatures in real time. The optical properties (such as light transmittance and color stability) of the dimming glass are affected by temperature, so it is necessary to adjust the control in a timely manner through the temperature sensor. When the external ambient temperature is too high, the data of the temperature sensor will trigger the control system to reduce the transparency of the glass, thereby reducing the solar radiation entering the room and reducing the load on the air conditioning system.

[0039] In this embodiment, the humidity sensor is used to monitor the change in relative humidity in the environment, including the following specific contents: The humidity sensor usually measures the water vapor content in the air through capacitive, impedance, or thermal principles, obtains the relative humidity data, and converts it into an electrical signal to be transmitted to the intelligent control unit. The humidity sensor can help the dimming glass adapt to different environmental conditions by monitoring the humidity level. For example, in a high-humidity environment, the data of the humidity sensor can be used to adjust the dynamic response of the dimming glass to avoid problems such as a decrease in light transmittance or blurred vision caused by dew or water vapor condensation on the glass surface.

[0040] In this embodiment, the occupancy sensor detects the occupancy status of people in the conference room, including the following specific contents: The occupancy sensor is based on infrared technology and can accurately perceive the movement or still state of the human body by detecting the infrared thermal radiation emitted by the human body, thereby judging the usage situation of the space.

[0041] Furthermore, the multi-source data obtained by the light sensor, temperature sensor, humidity sensor, and occupancy sensor are fused to achieve precise perception and control of the complex environment. The calculation formula for the multi-source data fusion is: where F is the result of the sensor fusion data fusion, n is the number of sensors participating in the data fusion, and x iis the observation value of the i-th sensor, w i is the weight of the i-th sensor, and ε is the error of sensor measurement.

[0042] Furthermore, the intelligent control unit receives data from sensors and dynamically calculates the optimal transparency of the dimming glass through a control logic based on PLC and artificial intelligence algorithms to adjust the light environment, including the following specific contents: The PLC can process multiple sensor input signals in real time and achieve complex control through programming logic. The artificial intelligence algorithm will analyze the current light intensity, occupancy status, and temperature and humidity data, and comprehensively calculate an optimal transparency value, thereby instructing the dimming glass to adjust to the light transmittance suitable for the meeting requirements, avoiding glare and ensuring indoor comfort. The PLC quickly executes predefined logic rules to establish a logic control model for situations with high real-time requirements, such as sudden changes in light intensity. The formula of the logic control model is:

[0043]

[0044] S i (t) = g i (V i (t));

[0045] In the formula: U(t) is the PLC output signal used to drive the transparency adjustment of the dimming glass, with a range between 0 and 1, representing the light transmittance of the glass (0 means completely opaque, 1 means completely transparent); f is the output mapping function that converts the comprehensive calculation result into a specific control signal, satisfying T low <x < T high , where, T low is the low threshold, defining the environmental state where the glass is completely opaque, and T high is the high threshold, defining the environmental state where the glass is completely transparent; n is the number of sensors; w i is the weight of the i-th sensor; S i (t) is the state signal of the i-th sensor after being processed by the PLC logic rules, with a range of 0 to 1; g i is the logic function of the i-th sensor; V i (t) is the original measurement value of the i sensors at time t.

[0046] The artificial intelligence algorithm comprehensively analyzes multi-dimensional environmental data and establishes an optimal transparency calculation model to calculate the optimal transparency value of the dimming glass in real time and dynamically. The formula of the optimal transparency calculation model is:

[0047] T = σ(w 1 ·L + w 2 ·θ + w 3 ·H + w4 ·O + b);

[0048] Where: T is the optimal transparency value of the dimming glass, ranging from 0 to 1, used to control the light transmittance of the glass (0 means completely opaque, 1 means completely transparent); σ is the Sigmoid activation function, used to smooth the output of the model; L is the ambient light intensity measured by the light sensor, with a standardized range from 0 to 1; w 1 is the contribution degree of the light intensity to the transparency calculation; θ is the ambient temperature measured by the temperature sensor, with a standardized range from 0 to 1; w 2 is the contribution degree of the temperature to the transparency calculation; H is the ambient humidity measured by the humidity sensor, with a standardized range from 0 to 1; w 3 is the contribution degree of the humidity to the transparency calculation; O is the meeting room occupancy status provided by the occupancy sensor, a binary value, 1 means the room is occupied, 0 means unoccupied; b is the bias, used to adjust the baseline value of the overall transparency.

[0049] The intelligent control unit also comprehensively processes the ambient data such as light intensity, temperature, humidity and occupancy status from the sensors with the operating parameters of the air conditioning and lighting systems, dynamically adjusts the operating states of each system, and realizes energy-saving optimization. When the external light intensity increases, the intelligent control unit instructs the dimming glass to reduce the transparency to reduce the solar radiation heat, and at the same time controls the air conditioning system to reduce the cooling load, thereby reducing the energy consumption. In addition, in the case of insufficient light intensity, the dimming glass is preferentially adjusted to the high transparency state to introduce natural light and reduce the power consumption of the lighting system. The linkage mechanism relies on a centralized building control platform. The intelligent control unit communicates with the air conditioning and lighting devices through the Internet of Things protocol to achieve cross-system data synchronization and control. The linkage mechanism is based on the principle of multi-objective optimization, balancing energy consumption, user comfort and equipment life. When it is detected that the room is not in use, the occupancy sensor will trigger the linkage mechanism, the dimming glass is adjusted to the low transparency state, the air conditioning system switches to the standby mode, and the lighting system is automatically turned off. The linkage mechanism not only saves energy but also extends the operating life of the equipment.

[0050] In this embodiment, the human-machine interaction interface provides an intuitive and convenient operation entry for users and realizes the management of system functions, including the following specific contents: The human-machine interaction interface includes a touch screen, voice control, and a mobile application, meeting the operation habits of different users. The touch screen is installed on the wall of the meeting room, and users can adjust the transparency of the dimming glass, set the environmental mode by swiping or clicking, and view the current glass transparency value, light intensity, and temperature and humidity data in real time. The voice control is through an intelligent voice assistant, and users can directly issue commands to adjust the glass state or switch modes. The mobile application expands the scope of interaction, and users can remotely control the dimming glass through a smartphone or tablet device, which is suitable for advance deployment for meeting preparation or indoor environment adjustment.

[0051] The present invention uses electrochromic glass and, at the same time, provides environmental data input through real-time monitoring of light, temperature, humidity, and occupancy sensors; based on a PLC and an artificial intelligence algorithm, it dynamically calculates the optimal transparency of the dimming glass, and can balance comfort and energy-saving requirements in strong light, low light, or unoccupied states; it is linked with air conditioners and lighting devices through an Internet of Things protocol, and synchronously adjusts the operating states of each device according to real-time environmental data.

[0052] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

[0053] Finally: The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dimming glass control system for a conference room, characterized in that: It includes dimming glass, light sensor, temperature sensor, humidity sensor, occupancy sensor, intelligent control unit, and human-computer interaction interface; the response time of the dimming glass is within 1 second to 5 seconds, and its internal circuit design includes a protection mechanism. When the glass is in a high-voltage working state, the overcurrent protection device in the circuit will ensure the safe operation of the components and prevent the abnormal current from damaging the glass; the light sensor is responsible for real-time monitoring of the ambient light intensity; the temperature sensor is used to detect changes in ambient temperature; the humidity sensor is used to monitor changes in relative humidity in the environment; the occupancy sensor detects the occupancy status of people in the conference room; the intelligent control unit dynamically calculates the optimal transparency of the dimming glass and adjusts the light environment based on the control logic of PLC and artificial intelligence algorithms; The method of dynamically calculating the optimal transparency of the dimming glass and adjusting the light environment includes the following specific steps: Step Z1, PLC processes multiple sensor input signals in real time and implements complex control through programming logic. For situations with high real-time requirements, PLC establishes a logic control model and quickly executes predefined logic rules; Step Z2, based on the artificial intelligence algorithm, comprehensively analyze the multi-dimensional environmental data, establish the optimal transparency calculation model, and dynamically calculate the optimal transparency value of the dimming glass in real time.

2. The dimming glass control system for a conference room according to claim 1 is characterized in that ,The formula of the logic control model is: S i (t)=g i (V i (t)); Where: U(t) is the PLC output signal, which is used to drive the transparency adjustment of the dimming glass. It ranges from 0 to 1, indicating the light transmittance of the glass (0 is completely opaque and 1 is completely transparent); f is the output mapping function, which converts the comprehensive calculation result into a specific control signal to meet T low <x<T high , where T low is the low threshold, defining the environment state where the glass is completely opaque, T high is the high threshold, defining the environment state where the glass is completely transparent; n is the number of sensors; w i is the weight of the i-th sensor; S i (t) is the status signal of the i-th sensor after being processed by the PLC logic rules, ranging from 0 to 1; g i is the logic function of the i-th sensor; V i (t) is the original measurement value of the i sensors at time t.

3. The dimming glass control system for a conference room according to claim 1 is characterized in that ,The formula of the optimal transparency calculation model is: T=σ(w1·L+w2·θ+w3·H+w4·O+b); Where: T is the optimal transparency value of the dimming glass, ranging from 0 to 1, which is used to control the transmittance of the glass (0 means completely opaque and 1 means completely transparent); σ is the Sigmoid activation function, which is used to smooth the output of the model; L is the ambient light intensity measured by the light sensor, with a standardized range of 0 to 1; w1 is the contribution of light intensity to transparency calculation; θ is the ambient temperature measured by the temperature sensor, with a standardized range of 0 to 1; w2 is the contribution of temperature to transparency calculation; H is the ambient humidity measured by the humidity sensor, with a standardized range of 0 to 1; w3 is the contribution of humidity to transparency calculation; O is the occupancy status of the conference room provided by the occupancy sensor, a binary value, 1 means there are people in the room, and 0 means no one; b is a bias, which is used to adjust the baseline value of overall transparency.

4. The dimming glass control system for a conference room according to claim 1, characterized in that: The dimming glass adopts electrochromic technology and adjusts the ion distribution in the glass by applying an external electric field, thereby achieving dynamic changes in transparency; the dimming glass is composed of a composite material, which includes a transparent conductive layer, an electrochromic layer, an electrolyte layer and a counter electrode layer.

5. The dimming glass control system for a conference room according to claim 1, characterized in that: The electrochromic layer is made of tungsten oxide (WO3) material, which can quickly switch between transparency and opacity under the action of voltage.

6. The dimming glass control system for a conference room according to claim 1, characterized in that: The light sensor is arranged near the window and placed in an unobstructed area so as to sense the change of external light in real time. It can respond to the real-time change of daylight in milliseconds and feed back the change data to the intelligent control unit.

7. The dimming glass control system for a conference room according to claim 1, characterized in that: The humidity sensor measures the water vapor content in the air through capacitive, impedance or thermal principles, obtains humidity data, converts it into an electrical signal, and transmits it to the intelligent control unit. The humidity sensor can help the dimming glass assembly adapt to different environmental conditions by monitoring the humidity level.

8. The dimming glass control system for a conference room according to claim 1, characterized in that: The occupancy sensor is based on infrared technology and can sense the movement or stillness of a human body by detecting infrared heat radiation emitted by the human body, thereby determining the usage of the space.

9. The dimming glass control system for a conference room according to claim 1, characterized in that: The human-computer interaction interface includes a touch screen, voice control and mobile application. The touch screen is installed on the wall of the conference room. The user can adjust the transparency of the dimming glass, set the environmental mode, and view the current glass transparency value, light intensity, and temperature and humidity data in real time by sliding or clicking; the voice control uses an intelligent voice assistant, and the user can directly issue commands to adjust the glass state or switch modes; the mobile application expands the scope of interaction, and the user can remotely control the dimming glass through a smartphone or tablet device.

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