Intelligent dimming glass system based on open-source gap system and control method of intelligent dimming glass system

The intelligent dimming glass system based on the open-source HarmonyOS system enables stepless continuous adjustment of light transmittance and cross-device collaborative control, solving the problems of traditional dimming glass in balancing privacy and light transmission, as well as the single control method, thereby improving the level of intelligence and enhancing security.

CN121348610APending Publication Date: 2026-01-16ZHONGSHAN POLYTECHNIC
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Patent Information

Application Number
CN202511211369.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Traditional smart glass suffers from problems such as being unable to balance privacy and light transmission, having a single control method, lacking environmental adaptability, and having limited communication distance.

Method used

The system adopts an intelligent dimming glass system based on the open-source HarmonyOS, which includes a control core module, a dimming execution module, an environmental perception module, and an interaction module. Combined with distributed communication and AI models, it can achieve stepless continuous adjustment of light transmittance, cross-device collaborative control, and environmental adaptive dimming.

Benefits of technology

It achieves high-precision continuous adjustment of light transmittance, supports cross-device collaborative control, has environmental adaptability, improves intelligence and enhances safety.

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Abstract

The invention discloses an intelligent dimming glass system based on an open source gap system and a control method thereof.The intelligent dimming glass system based on the open source gap system comprises a control core module, a chip supporting the open source gap system is adopted, and a distributed communication module and an intelligent decision unit are arranged in the chip; the intelligent decision-making unit is used for fusing environmental parameters and a control instruction and generating a transmittance adjustment strategy, and the distributed communication module is used for realizing cross-device cooperative control; stepless continuous adjustment of light transmittance is realized; cross-equipment and space cooperative control is realized based on the gap distributed capability; and environment self-adaptive dimming is realized through multi-sensor fusion.
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Description

Technical Field

[0001] This invention relates to the field of smart glass control technology, and in particular to a smart dimming glass system and its control method based on the open-source HarmonyOS system. Background Technology

[0002] Traditional smart glass typically uses fixed adjustment levels, such as transparent / frosted, which presents several problems. Firstly, it fails to balance privacy and lighting, and its single-state operation is ill-suited to dynamic scenarios. For example, it cannot adequately meet the needs of switching from a presentation to a private discussion in a meeting room. Secondly, its control methods are limited, relying on physical switches or individual remote controls and lacking multi-device collaboration capabilities. Furthermore, it has low levels of intelligence, lacks environmental adaptability, and requires frequent manual adjustments.

[0003] Existing solutions use wired communication and control the dimming film voltage via buttons to switch between basic transparency and fogging. However, existing solutions have significant drawbacks: limited communication distance, requiring extended lines and additional voltage relay equipment for cross-room control; only supporting two-level adjustment, which cannot meet the needs of fine lighting; and lacking environmental sensing capabilities, relying on manual operation.

[0004] Therefore, the existing technology of smart glass control technology needs further improvement. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent dimming glass system and its control method based on the open-source HarmonyOS system, which realizes stepless continuous adjustment of light transmittance; achieves cross-device and spatial collaborative control based on HarmonyOS's distributed capabilities; and achieves environmental adaptive dimming through multi-sensor fusion.

[0006] To achieve the above objectives, the present invention adopts the following solution:

[0007] A smart dimming glass system based on the open-source HarmonyOS system includes:

[0008] The control core module uses a chip that supports the open-source HarmonyOS system. The chip has a built-in distributed communication module and an intelligent decision-making unit. The intelligent decision-making unit is used to integrate environmental parameters and control commands and generate a transmittance adjustment strategy. The distributed communication module is used to realize cross-device collaborative control.

[0009] The dimming execution module is electrically connected to the control core module and includes a PDLC dimming film and a voltage control unit. The voltage control unit is used to receive instructions from the control core module and adjust the voltage of the PDLC dimming film.

[0010] An environmental sensing module, which is communicatively connected to the control core module, includes at least one environmental sensor for collecting environmental parameters and transmitting them to the control core module.

[0011] The interaction module is communicatively connected to the control core module and is used to receive control commands input by the user and transmit them to the control core module. The control commands include light transmittance adjustment commands.

[0012] Furthermore, the distributed communication module includes a Wi-Fi module and a BLE module.

[0013] Furthermore, the environmental sensor includes a light sensor, a human body sensor, and a temperature and humidity sensor, and the environmental parameters include light intensity, human activity status, and temperature and humidity data.

[0014] Furthermore, the interaction module includes a local control unit, a voice control unit, and an automation strategy unit; the local control unit is a HarmonyOS terminal APP, and adjusts the light transmittance in real time via a slider; the voice control unit accesses the voice engine of the open-source HarmonyOS system and supports voice command recognition; the automation strategy unit has at least one preset scene mode, and the scene mode corresponds to a preset light transmittance parameter.

[0015] Furthermore, the control core module also has a built-in encrypted communication unit, which uses the end-to-end encryption protocol of the open-source HarmonyOS system to encrypt data transmission.

[0016] Furthermore, the intelligent decision-making unit includes an AI model inference subunit and a strategy output subunit; the AI ​​model inference subunit is pre-configured with a light balance algorithm, which is used to output a transmittance adjustment coefficient after inputting indoor light intensity, outdoor light intensity and scene parameters; the strategy output subunit is used to convert the adjustment coefficient into a voltage control command, wherein the light balance algorithm is based on the dynamic matching logic of indoor target light intensity and outdoor effective light intensity.

[0017] A method for controlling smart dimming glass based on the open-source HarmonyOS system includes the following steps:

[0018] Environmental parameter acquisition steps: Environmental parameters are acquired through the environmental sensing module, including indoor light intensity;

[0019] Control command acquisition steps: Acquire control commands through the interaction module, the control commands including user input commands or preset scene commands;

[0020] Transmittance adjustment steps: The control core module based on the open-source HarmonyOS system receives the environmental parameters and control commands, calculates the target voltage through the dimming algorithm, and sends a voltage adjustment command to the voltage control unit to control the transmittance of the PDLC dimming film to be continuously adjusted within the range.

[0021] Furthermore, the environmental parameters also include outdoor light intensity, which is calculated by retrieving weather data for the current address from the network; the light transmittance adjustment step also includes inputting indoor light intensity and outdoor light intensity into an AI model for analysis, and the AI ​​model outputs light transmittance adjustment suggestions.

[0022] Furthermore, the dimming algorithm is a PID control algorithm, which dynamically outputs the voltage value of the PDLC dimming film by calculating the difference between the target illuminance and the current illuminance.

[0023] Furthermore, it also includes cross-device collaboration steps: the control core module establishes communication connections with other HarmonyOS devices through the distributed communication function of the open-source HarmonyOS system, receives linkage commands from other HarmonyOS devices, and executes light transmittance adjustment;

[0024] In the light transmittance adjustment step, when the absolute value of the deviation between the indoor light intensity and the target light intensity is less than a preset threshold, or the outdoor light intensity is lower than the effective threshold, the current light transmittance remains unchanged.

[0025] In summary, the advantages of this invention over the prior art are:

[0026] This invention addresses the shortcomings of existing smart glass control technologies. Through its structural design, it offers the following advantages: higher adjustment precision (existing technologies only support dual-level adjustment, while this invention achieves stepless continuous adjustment, meeting more precise lighting needs); wider control range (existing technologies are limited to a single room, while this invention, based on HarmonyOS distributed capabilities, enables cross-building collaborative control); higher level of intelligence (existing technologies rely on manual operation, while this invention achieves environmentally adaptive dimming through multi-sensor fusion and AI model analysis, and also supports multiple interaction methods such as voice control); and enhanced security (existing technologies use Bluetooth plaintext transmission, while this invention employs the HarmonyOS end-to-end encryption protocol, effectively preventing unauthorized access to dimming commands). Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the system structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the control method of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-2 This invention provides an intelligent dimming glass system based on the open-source HarmonyOS system, comprising:

[0031] The control core module 1 adopts a chip that supports the open-source HarmonyOS system. The chip has a built-in distributed communication module and an intelligent decision-making unit 15. The intelligent decision-making unit 15 is used to integrate environmental parameters and control commands and generate a transmittance adjustment strategy. The distributed communication module is used to realize cross-device collaborative control.

[0032] The dimming execution module 2 is electrically connected to the control core module 1 and includes a PDLC dimming film 21 and a voltage control unit 22. The voltage control unit 22 is used to receive instructions from the control core module 1 and adjust the voltage of the PDLC dimming film 21.

[0033] The environmental sensing module 3 is communicatively connected to the control core module 1 and includes at least one environmental sensor 31 for collecting environmental parameters and transmitting them to the control core module 1.

[0034] Interaction module 4 is communicatively connected to the control core module 1 and is used to receive control commands input by the user and transmit them to the control core module 1. The control commands include transmittance adjustment commands. The control core module 1 acts as the central hub and runs on the open-source HarmonyOS system chip. Its built-in distributed communication module supports cross-device collaboration, and the intelligent decision-making unit integrates environmental parameters and user commands to generate transmittance adjustment strategies.

[0035] Environmental sensing module 3 collects environmental parameters such as light intensity and human activity through sensors and transmits them to the control core;

[0036] Interaction module 4 receives control commands from the user, such as light transmittance adjustment requests, and sends them to the control core;

[0037] The voltage control unit in dimming execution module 2 receives instructions from the control core and adjusts the voltage of the PDLC dimming film to achieve changes in light transmittance.

[0038] The entire system leverages the distributed capabilities of the HarmonyOS system to achieve closed-loop control encompassing "environmental perception, instruction processing, and execution adjustment."

[0039] The distributed communication module of this invention includes a Wi-Fi module 12 and a BLE module 13; it includes a Wi-Fi module 12 and a BLE module 13, which respectively use Wi-Fi network and Bluetooth Low Energy technology to achieve short-range / medium-range communication with other HarmonyOS devices such as smart lights and mobile apps, and support cross-device collaborative control such as adjusting light in conjunction with smart lights.

[0040] The environmental sensor 31 of the present invention includes a light sensor 311, a human body sensor 312, and a temperature and humidity sensor 313. The environmental parameters include light intensity, human activity status, and temperature and humidity data. The environmental sensor 31 includes a light sensor 311 to collect light intensity, a human body sensor 312 to detect human activity status, and a temperature and humidity sensor 313 to collect temperature and humidity data.

[0041] These parameters collectively provide environmental data for the control core. For example, light sensor data is used to determine whether light transmittance needs to be adjusted, and human body sensors can trigger energy-saving modes such as frosted glass when no one is detected.

[0042] The interactive module 4 of this invention includes a local control unit 41, a voice control unit 42, and an automation strategy unit 43. The local control unit 41 is a HarmonyOS terminal APP, and the transmittance is adjusted in real time via a slider. The voice control unit 42 is connected to the voice engine of the open-source HarmonyOS system and supports voice command recognition. The automation strategy unit 43 has at least one preset scene mode, and the scene mode corresponds to a preset transmittance parameter. The local control unit 41 is a HarmonyOS terminal APP, and the user can adjust the transmittance in real time via a slider to achieve manual fine control.

[0043] The voice control unit 42 is connected to the HarmonyOS voice engine, supporting voice command recognition such as "switch to office mode", improving the ease of operation;

[0044] The automation strategy unit 43 has preset scene modes such as "meeting mode" and "night mode". Each mode corresponds to a fixed transmittance parameter, which is automatically adjusted after being triggered without manual operation.

[0045] The control core module 1 of the present invention also has a built-in encrypted communication unit 14, which uses the end-to-end encryption protocol of the open-source HarmonyOS system to encrypt data transmission. The built-in encrypted communication unit 14 of the control core module 1 uses the end-to-end encryption protocol of the open-source HarmonyOS system to encrypt data transmitted between modules, such as control commands and environmental parameters, to prevent illegal intrusion or command tampering.

[0046] The intelligent decision-making unit 15 of this invention includes an AI model inference subunit 151 and a strategy output subunit 152. The AI ​​model inference subunit 151 is pre-configured with a light balance algorithm, which is used to output a transmittance adjustment coefficient after inputting indoor light intensity, outdoor light intensity, and scene parameters. The strategy output subunit 152 is used to convert the adjustment coefficient into a voltage control command. The light balance algorithm is based on the dynamic matching logic of indoor target light intensity and outdoor effective light intensity. The AI ​​model inference subunit 151 is pre-configured with a light balance algorithm, which is inputting indoor light intensity, outdoor light intensity converted from weather data, and scene parameters such as "office" and "meeting room", and outputs a transmittance adjustment coefficient.

[0047] Strategy output subunit 152 converts the adjustment coefficient into a voltage control command;

[0048] The light balance algorithm is based on "dynamic matching of indoor target lighting and outdoor effective lighting". When the indoor lighting is too dark and the outdoor light is sufficient, the light transmittance is enhanced to avoid ineffective adjustment.

[0049] A method for controlling smart dimming glass based on the open-source HarmonyOS system includes the following steps:

[0050] Environmental parameter acquisition steps: Environmental parameters are acquired through the environmental sensing module 3, including indoor light intensity;

[0051] Control command acquisition steps: Acquire control commands through interaction module 4, the control commands including user input commands or preset scene commands;

[0052] Transmittance adjustment steps: The control core module 1 based on the open-source HarmonyOS system receives the environmental parameters and control commands, calculates the target voltage through the dimming algorithm, and sends a voltage adjustment command to the voltage control unit 22 to control the transmittance of the PDLC dimming film 21 to be continuously adjusted within the range; Environmental parameter acquisition steps: Indoor light intensity and other parameters are acquired through the environmental sensing module 3;

[0053] Control command acquisition steps: Obtain user commands or preset scene commands through interaction module 4;

[0054] Transmittance adjustment steps: The control core module 1, based on the HarmonyOS system, combines environmental parameters and instructions, calculates the target voltage through a dimming algorithm, and drives the voltage control unit to adjust the transmittance of the PDLC dimming film steplessly from 0% to 100%.

[0055] The environmental parameters described in this invention also include outdoor light intensity, which is calculated by retrieving weather data for the current address from the network; the light transmittance adjustment step further includes inputting indoor light intensity and outdoor light intensity into an AI model for analysis, and the AI ​​model outputs light transmittance adjustment suggestions; the environmental parameter newly added is outdoor light intensity, which is calculated by retrieving weather data for the current address from the network, including ultraviolet intensity;

[0056] In the light transmittance adjustment step, indoor and outdoor light intensity is input into the AI ​​model for analysis, and adjustment suggestions are output to assist the control core in generating more accurate strategies.

[0057] The dimming algorithm described in this invention is a PID control algorithm. By calculating the difference between the target illuminance and the current illuminance, the voltage value of the PDLC dimming film 21 is dynamically output. By using the PID control algorithm, the voltage value of the PDLC dimming film is dynamically output by calculating the difference between the target illuminance and the current illuminance, delta: voltage = Kp × delta + Ki × integral (delta), thereby achieving a fast and stable adjustment response time of transmittance of < 200ms.

[0058] The present invention also includes a cross-device collaboration step: the control core module 1 establishes a communication connection with other HarmonyOS devices through the distributed communication function of the open source HarmonyOS system, receives linkage instructions from other HarmonyOS devices and performs light transmittance adjustment;

[0059] In the light transmittance adjustment step, when the absolute value of the deviation between the indoor light intensity and the target light intensity is less than a preset threshold, or the outdoor light intensity is lower than the effective threshold, the current light transmittance remains unchanged.

[0060] The control core establishes connections with other HarmonyOS devices, such as smart air conditioners and curtains, through HarmonyOS distributed communication functions, and receives linkage commands, such as synchronously brightening the glass and executing adjustments when the air conditioner is turned on, reflecting the core innovation of "HarmonyOS distributed cross-device collaboration".

[0061] Threshold logic for light transmittance adjustment: When the indoor light intensity deviates from the target by less than the preset threshold δ, or when the outdoor light intensity is lower than the effective threshold, the current light transmittance remains unchanged to avoid oscillations caused by frequent adjustments.

[0062] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent dimming glass system based on an open source Hongmeng system, characterized in that, The application relates to a light transmittance control system, comprising: a control core module (1) adopting a chip supporting an open-source Hongmeng system, wherein a distributed communication module and an intelligent decision unit (15) are built in the chip, the intelligent decision unit (15) is used for fusing environmental parameters and control instructions and generating a light transmittance adjustment strategy, and the distributed communication module is used for realizing cross-device collaborative control; a light adjustment execution module (2) electrically connected with the control core module (1) and comprising a PDLC light adjustment film (21) and a voltage control unit (22), wherein the voltage control unit (22) is used for receiving instructions of the control core module (1) and adjusting the voltage of the PDLC light adjustment film (21); an environmental perception module (3) in communication connection with the control core module (1) and comprising at least one environmental sensor (31) used for collecting environmental parameters and transmitting the environmental parameters to the control core module (1); an interaction module (4) in communication connection with the control core module (1) and used for receiving user-input control instructions and transmitting the control instructions to the control core module (1), wherein the control instructions comprise light transmittance adjustment instructions. 2.The intelligent dimming glass system based on the open-source HONGBAO system of claim 1, wherein, The distributed communication module comprises a Wi-Fi module (12) and a BLE module (13). 3.The smart dimming glass system based on the open-source HOMER system of claim 2, wherein, The environmental sensor (31) comprises a light sensor (311), a human body sensor (312) and a temperature and humidity sensor (313), and the environmental parameters comprise illumination intensity, human activity state and temperature and humidity data. 4.The smart dimming glass system based on the open-source HOMERUS according to claim 3, wherein, The interaction module (4) comprises a local control unit (41), a voice control unit (42) and an automatic strategy unit (43); the local control unit (41) is a Hongmeng terminal APP and adjusts the light transmittance in real time through a sliding bar; the voice control unit (42) accesses a voice engine of the open-source Hongmeng system and supports voice instruction recognition; and the automatic strategy unit (43) is preconfigured with at least one scene mode, and the scene mode corresponds to preconfigured light transmittance parameters. 5.The smart dimming glass system based on the open-source HOMERUS system of claim 4, wherein, The control core module (1) is further built with an encrypted communication unit (14) and realizes data transmission encryption through an end-to-end encryption protocol of the open-source Hongmeng system. 6.The smart dimming glass system based on an open-source HOMERUS according to claim 5, wherein, The intelligent decision unit (15) comprises an AI model reasoning subunit (151) and a strategy output subunit (152); the AI model reasoning subunit (151) is preconfigured with an illumination balancing algorithm and is used for inputting indoor illumination intensity, outdoor illumination intensity and scene parameters and outputting a light transmittance adjustment coefficient; and the strategy output subunit (152) is used for converting the adjustment coefficient into a voltage control instruction, wherein the illumination balancing algorithm is based on the dynamic matching logic of indoor target illumination and outdoor effective illumination.

7. A control method of smart light control glass based on an open-source Hongmeng system, comprising the control system of any one of claims 1-6, characterized in that, The application further discloses a light transmittance control method, comprising the following steps: an environmental parameter collection step: collecting environmental parameters through the environmental perception module (3), wherein the environmental parameters comprise indoor illumination intensity; a control instruction acquisition step: acquiring control instructions through the interaction module (4), wherein the control instructions comprise user-input instructions or preset scene instructions; The light transmittance adjusting step: the control core module (1) based on the open source Hongmeng system receives the environmental parameters and control instructions, calculates the target voltage through the dimming algorithm, and sends the voltage adjusting instruction to the voltage control unit (22) to control the light transmittance of the PDLC dimming film (21) to continuously adjust within the range. 8.The intelligent dimming glass control method based on an open-source HOMERUS system of claim 7, wherein, The environmental parameters also include outdoor light intensity, which is obtained by retrieving weather data of the current address through the network; in the light transmittance adjusting step, the indoor light intensity and the outdoor light intensity are input into the AI model for analysis, and the AI model outputs the light transmittance adjusting suggestion. 9.The intelligent dimming glass control method based on an open-source HOMERUS system of claim 8, wherein, The dimming algorithm is a PID control algorithm, which dynamically outputs the voltage value of the PDLC dimming film (21) by calculating the difference between the target illuminance and the current illuminance. 10.The intelligent dimming glass control method based on an open-source HOMERUS system of claim 9, wherein, It also includes a cross-device coordination step: the control core module (1) establishes a communication connection with other Hongmeng devices through the distributed communication function of the open source Hongmeng system, receives the linkage instruction of other Hongmeng devices and executes the light transmittance adjustment; In the light transmittance adjusting step, when the absolute value of the deviation between the indoor light intensity and the target light intensity is less than the preset threshold, or the outdoor light intensity is lower than the effective threshold, the current light transmittance is kept unchanged.