Lighting control method for weak window space, lighting system and terminal

Abstract

The application provides a lighting control method, a lighting system and a terminal for a weak window space, and the method comprises the following steps: based on a preset space use rule, dynamically dividing a weak window space into a plurality of functional areas; the functional areas comprise a normal activity area, a transition guide area and a sunlight coordination area; acquiring a time period in which effective natural light exposure can be performed in the future, and defining the time period as a coordination time window; in the coordination time window, activating a lighting unit of the transition guide area to generate a dynamic light path connecting the normal activity area and the sunlight coordination area; the dynamic light path is used to guide a user to move from the normal activity area to the sunlight coordination area to receive natural light, so as to receive natural light meeting a vitamin D synthesis light dose threshold. The application significantly improves the biological availability and utilization efficiency of natural light resources in a weak window environment, and provides a feasible technical path for a healthy building, an underground space and a high-density urban office scene.

Description

Technical Field

[0001] This application belongs to the field of intelligent lighting technology, and relates to a lighting control method, lighting system and terminal for spaces with weak windows. Background Technology

[0002] Vitamin D plays a vital role in calcium and phosphorus metabolism, bone health, and immune function regulation in the human body, and its synthesis in the skin is mainly dependent on natural sunlight exposure. However, with the acceleration of urbanization and the popularization of information-based lifestyles, modern people spend long periods of time indoors and significantly reduce their outdoor activities, leading to insufficient sunlight exposure and an increasingly widespread vitamin D deficiency problem.

[0003] Current healthy lighting technologies primarily focus on improving visual comfort, regulating mood, or synchronizing circadian rhythms, typically achieved by adjusting color temperature or illuminance. However, they lack systematic integration and optimization addressing the specific physiological rhythms, metabolic microenvironment, and user behavior patterns required for vitamin D synthesis. While some studies have attempted to promote vitamin D production through direct ultraviolet (UV) light exposure, these methods have significant limitations: firstly, UV radiation may cause photodamage, photoaging, and even increase the risk of skin cancer; secondly, it poses potential harm to the eyes, making it difficult to meet the requirements for long-term, safe, and stable application in everyday indoor environments.

[0004] Especially in typical windowless or poorly lit environments such as underground office spaces, interior corridors, and high-density urban office settings, natural lighting is extremely scarce, and traditional healthy lighting strategies cannot effectively compensate for the physiological dysfunction caused by long-term lack of sunlight. Therefore, there is an urgent need for a new type of healthy lighting solution that balances safety, effectiveness, and user adaptability. Summary of the Invention

[0005] This application provides a lighting control method, lighting system, and terminal for spaces with weak windows, which addresses the problems of low biological accessibility and low utilization efficiency of natural light resources in environments with weak windows.

[0006] In a first aspect, this application provides a lighting control method for spaces with weak windows, comprising: dynamically dividing the space with weak windows into several functional areas based on preset space usage rules; the functional areas include: a normal activity area configured to support users in performing daily activities; a transition guidance area configured to provide behavioral guidance through visual means; and a sunlight coordination area configured to support users in receiving natural light; obtaining a time period in the future when effective natural light exposure can be achieved and defining it as a coordination time window; the effective natural light exposure refers to natural light conditions that meet a preset vitamin D synthesis light dose threshold; within the coordination time window, activating the lighting unit of the transition guidance area to generate a dynamic light path connecting the normal activity area and the sunlight coordination area; the dynamic light path is used to guide the user to move from the normal activity area to the sunlight coordination area to receive natural light that meets the vitamin D synthesis light dose threshold.

[0007] In one implementation of the first aspect, based on preset space usage rules, the weak window space is dynamically divided into several functional areas, including: based on historical user behavior data, identifying areas where users stay in the weak window space for a longer period than a preset threshold, and defining them as the normal activity area; based on a space usage frequency heatmap, extracting the highest frequency passage path connecting the normal activity area and the building's daylighting interface, and defining it as the transition guidance area; and defining the open space within the vicinity of the endpoint of the highest frequency passage path that meets a preset light requirement threshold as the daylighting coordination area.

[0008] In one implementation of the first aspect, obtaining the time period in which effective natural light exposure can be achieved in the future and defining it as a collaborative time window includes: acquiring multi-source environmental data; the multi-source environmental data includes weather forecast information, solar position parameters, building geometric models, and surrounding shading information; based on the multi-source environmental data, predicting the natural illuminance, the duration of the natural illuminance, and the natural light color temperature of the solar synergy zone in the future time period; and determining the collaborative time window based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature.

[0009] In one implementation of the first aspect, determining the collaborative time window based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature includes using a future time period that simultaneously satisfies the following conditions as the collaborative time window: the natural illuminance is higher than a first preset threshold; the duration of the natural illuminance exceeds a second preset threshold; the natural light color temperature is higher than a third preset threshold; the future time period overlaps with a user-preset active time period; and the combination of the natural illuminance, the duration of the natural illuminance, and the natural light color temperature satisfies the effective irradiance for vitamin D synthesis.

[0010] In one implementation of the first aspect, the method further includes: before the start of the collaborative time window, controlling the lighting unit of the normal activity area to be in lighting mode and the lighting units of the transition guidance area and the sunlight collaboration area to be inactive mode; during the collaborative time window, controlling the lighting unit of the normal activity area to switch to inactive mode and the lighting units of the transition guidance area and the sunlight collaboration area to lighting mode; after the end of the collaborative time window, controlling the lighting unit of the normal activity area to switch to lighting mode and the lighting units of the transition guidance area and the sunlight collaboration area to inactive mode.

[0011] In one implementation of the first aspect, within the coordinated time window, the method further includes: generating an initial dynamic light path using the lighting unit of the transition guidance area; monitoring the user's behavioral response to the initial dynamic light path in real time; the behavioral response includes the user's movement direction and movement speed; based on the behavioral response, combined with a preset movement intention recognition model, determining whether the user intends to move from the normal activity area to the sunlight coordination area; the movement intention recognition model is trained based on historical user behavior data and is used to distinguish between actively heading there and randomly passing by; if so, the initial dynamic light path is maintained unchanged; otherwise, the visual parameters of the initial dynamic light path are adjusted to form a new dynamic light path; the visual parameters include light brightness, flashing frequency, or light color.

[0012] In one implementation of the first aspect, the validity period determination mechanism of the collaborative time window includes: continuously monitoring the actual natural illuminance within the solar irradiance collaborative zone; determining whether the actual natural illuminance is lower than the preset illuminance demand threshold on which the collaborative time window is opened, and whether the duration of the actual natural illuminance exceeds the preset tolerance duration; if so, determining that the validity period of the collaborative time window has ended; otherwise, determining that the current period is still within the validity period of the collaborative time window.

[0013] In one implementation of the first aspect, the method further includes: when the weak window space is a windowless space, the solar synergy zone is replaced by a simulated natural light source instead of a real natural lighting interface; the simulated natural light source is configured to emit a spectrum containing an effective UVB band to directly promote vitamin D synthesis; and the transition guidance zone is dynamically delineated based on the highest frequency passage path connecting the normal activity zone and the simulated natural light source.

[0014] Secondly, this application provides a lighting system for a space with weak windows, the space including a normal activity area, a transition guidance area, and a daylighting coordination area; the system includes: a first lighting unit disposed in the normal activity area; a second lighting unit disposed in the transition guidance area; a third lighting unit disposed in the daylighting coordination area; and a lighting control device for the space with weak windows, electrically connected to the first lighting unit, the second lighting unit, and the third lighting unit, for performing the method described in any of the above claims.

[0015] Thirdly, this application provides a terminal, comprising: a memory for storing a computer program; and a processor for executing the computer program stored in the memory to cause the terminal to perform the method described in any of the above-mentioned embodiments.

[0016] As described above, the lighting control method, lighting system, and terminal for spaces with weak windows described in this application have the following beneficial effects:

[0017] (1) By modeling the functional zoning of the weak window space, the lighting strategy was deployed in a refined manner;

[0018] (2) By obtaining the time period in the future when natural sunlight can be coordinated, we can proactively plan the coordination strategy of artificial lighting and natural light resources, and optimize the bioaccessibility and utilization efficiency of the indoor light environment.

[0019] (3) By dynamically adjusting the dynamic light path, adaptive optimization of the lighting guidance strategy is achieved. Attached Figure Description

[0020] Figure 1 The flowchart shown is a lighting control method for weak window spaces according to an embodiment of this application.

[0021] Figure 2 The diagram shown is a flowchart illustrating the division of functional areas according to an embodiment of this application.

[0022] Figure 3 The diagram shows the distribution of the normal activity area, the transition guidance area, and the sunlight coordination area according to an embodiment of this application.

[0023] Figure 4 This is a schematic diagram showing the distribution of the normal activity area, transition guidance area, and solar synergy area according to another embodiment of this application.

[0024] Figure 5 The flowchart shown is a process for obtaining the collaborative time window according to an embodiment of this application.

[0025] Figure 6The diagram shown is a flowchart of dynamic optical path control within a collaborative time window according to an embodiment of this application.

[0026] Figure 7 The flowchart shown is a lighting control method for weak window spaces according to another embodiment of this application.

[0027] Figure 8 The diagram shown is a structural schematic of a lighting system for a space with weak windows according to an embodiment of this application.

[0028] Figure 9 The diagram shown is a structural schematic of a lighting control device for a space with weak windows, according to an embodiment of this application.

[0029] Figure 10 The diagram shown is a structural schematic of a terminal according to an embodiment of this application. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0031] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] The following embodiments of this application provide a lighting control method, lighting system, and terminal for spaces with weak windows. By combining spatial-level lighting strategies and behavioral guidance design, the bio-accessibility and utilization efficiency of natural light resources in weak window environments are significantly improved while ensuring safety. This provides a feasible technical path for healthy buildings, underground spaces, and high-density urban office scenarios.

[0033] This solution is suitable for indoor environments with extremely poor natural lighting conditions. Its core objective is to alleviate physiological health problems caused by long-term insufficient light, especially to compensate for the adverse effects of vitamin D deficiency.

[0034] The following will describe in detail the principle and implementation of a lighting control method, lighting system and terminal for weak window spaces according to this embodiment, so that those skilled in the art can understand the lighting control method, lighting system and terminal for weak window spaces according to this embodiment without creative effort.

[0035] Please see Figure 1 The above is a flowchart of a lighting control method for weak window spaces according to an embodiment of this application.

[0036] like Figure 1 As shown, this embodiment provides a lighting control method for spaces with weak windows, including the following steps S100 to S300.

[0037] In step S100, based on preset space usage rules, the weak window space is dynamically divided into several functional areas.

[0038] In one embodiment of this application, the functional area includes a normal activity area, a transition guidance area, and a sunlight coordination area.

[0039] The routine activity area is configured to support users in performing daily activities (such as office work), and is the area where people spend the most time and where lighting needs are most stable.

[0040] The transition guidance area is configured to provide behavioral guidance through visual means. For example, it assists users in orienting and moving within the space through changes in light color, brightness, or dynamic lighting patterns.

[0041] The sunlight synergy zone is configured to support users in receiving natural light. It is usually an area with limited natural lighting conditions (such as near high side windows, courtyards, or light pipes). By synergizing natural light with artificial light sources, it provides users with physiological rhythm support that simulates sunlight exposure and alleviates the health risks caused by long-term lack of sunlight.

[0042] It should be noted that the spatial division strategy described in this embodiment can be adjusted in real time according to time, pedestrian flow, usage scenario or ambient lighting conditions, thereby achieving precise allocation of lighting resources and maximizing its positive benefits to user health.

[0043] In some embodiments, the technical solution of this application can be extended to windowless spaces, such as enclosed office units or dark areas inside buildings. In such scenarios, innovative solutions for human-centered lighting design in modern urban high-density built environments can be provided by combining high-fidelity daylight simulation with behavioral guidance, even without natural light input.

[0044] Please see Figure 2 The above is a flowchart illustrating the division of functional areas according to an embodiment of this application.

[0045] like Figure 2 As shown, based on preset space usage rules, the weak window space is dynamically divided into several functional areas, including the following steps S101 to S103.

[0046] In step S101, based on historical user behavior data, the region where the user stays in the weak window space for a longer period of time than a preset threshold is identified and defined as the normal activity area.

[0047] The historical user behavior data includes information such as user location trajectory, dwell time, and activity frequency. Regular activity areas typically correspond to high-frequency usage locations such as office workstations, rest chairs, and nursing beds.

[0048] In step S102, based on the space usage frequency heat map, the highest frequency passage path connecting the normal activity area and the building lighting interface is extracted and defined as the transition guidance area.

[0049] The building's lighting interface includes skylights, light pipe outlets, high side windows, or adjacent windowed areas.

[0050] To achieve the function of behavioral guidance, lighting strategies such as brightness enhancement, brightness gradient, color temperature adjustment, or color change can be implemented in this area to form a clear visual orientation and enhance the directional cues and path guidance effects in the space.

[0051] In step S103, the open space within the vicinity of the end point of the highest frequency travel path that meets the preset light requirement threshold is defined as the solar synergy zone.

[0052] The solar synergy zone is located in a position with relatively high accessibility to natural light, aiming to support users in receiving real or simulated natural light, thereby effectively activating key photobiological effects such as vitamin D synthesis and promoting physiological rhythm regulation and overall health.

[0053] In another embodiment of this application, the application further includes: dynamically dividing the weak window space into several functional regions based on the biologically effective ultraviolet radiation dose. This region division method includes the following steps S104 to S108.

[0054] In step S104, the optical parameters of the building window are obtained, and a dynamic transmission model of the window to ultraviolet radiation is established based on the optical parameters; the optical parameters include position, orientation, area and UVB band transmittance of the glass.

[0055] In step S105, based on the solar trajectory model and weather forecast data, the potential UVB irradiance of each location in space in the future time period is calculated, and the visibility factor of the window is geometrically occluded in combination with the location.

[0056] In step S106, based on the spectral weighting function of vitamin D synthesis and the preset skin type model, the UVB irradiance at each location is converted into a cumulative effective biological dose, and it is determined whether there is a time window that meets the vitamin D synthesis light dose threshold.

[0057] In step S107, all spatial locations that can reach the light dose threshold within the time window are dynamically designated as the solar synergy zone, and other locations are not included in this zone, regardless of whether they are near windows or used for daily activities.

[0058] In step S108, the normal activity area is identified based on the user's historical stay data, and when the time window is activated, a guide path connecting the normal activity area and the nearest sunlight coordination area is automatically generated, and the spatial range corresponding to the lighting unit covered by the path is temporarily defined as the transition guide area.

[0059] Please see Figure 3 The diagram shows the distribution of the normal activity area, transition guidance area, and solar synergy area according to an embodiment of this application. Please refer to... Figure 4 The diagram shows the distribution of the normal activity area, the transition guidance area, and the sunlight coordination area according to another embodiment of this application.

[0060] In one embodiment of this application, corresponding lighting devices are provided for each functional area, as detailed below:

[0061] High color rendering, adjustable color temperature and stable illuminance main lighting fixtures are configured in the normal activity area. These lighting fixtures are evenly distributed above the user's main activity positions and support dynamic adjustment of spectral power distribution according to the diurnal rhythm.

[0062] In the transitional guidance area, linear LED light strips or directional wall lights are embedded along the passageway, creating a clear visual guidance line through gradual changes in brightness, color temperature, or dynamic light flow effects. The layout and light distribution design of the lighting fixtures are designed to avoid glare, ensuring both guidance functionality and visual comfort.

[0063] In the solar synergy zone, full-spectrum simulated daylight lamps can be installed and arranged in conjunction with natural lighting devices such as skylights and light pipes to enhance the bioavailability of light. In some embodiments, if natural light is sufficient and meets the requirements for healthy lighting, no additional artificial light source may be required, and natural lighting may be relied upon entirely.

[0064] In some embodiments, when the weak window space is a windowless space, the solar synergy zone is replaced by a simulated natural light source instead of a real natural lighting interface; the simulated natural light source is configured to emit a spectrum containing an effective UVB band to directly promote vitamin D synthesis; and the transition guidance zone is dynamically delineated based on the highest frequency passage path connecting the normal activity zone and the simulated natural light source.

[0065] In this implementation, a refined deployment of lighting strategies is achieved by functionally zoning the space with weak windows. The zoning method comprehensively considers the functional uses of the space, user behavior characteristics, and illuminance distribution characteristics to construct a multi-dimensional area division model. This model not only reflects the usage logic of the physical space but also deeply integrates lighting environment requirements and health intervention goals, thus providing effective support for subsequent differentiated lighting control for different functional areas and significantly improving the utilization efficiency of light resources and physiological health benefits.

[0066] In step S200, the time period during which effective natural light exposure can be carried out in the future is obtained and defined as the collaborative time window.

[0067] In this embodiment, effective natural light exposure refers to natural light conditions that meet the preset vitamin D synthesis light dose threshold.

[0068] Please see Figure 5 The flowchart shown is a process for obtaining the collaborative time window according to an embodiment of this application.

[0069] like Figure 5 As shown, obtaining the time period during which effective natural light exposure can be carried out in the future and defining it as a collaborative time window includes the following steps S201 to S203.

[0070] In step S201, multi-source environmental data is acquired.

[0071] In one embodiment of this application, the multi-source environmental data includes weather forecast information, solar position parameters, building geometric models, and surrounding shading information.

[0072] Specifically, the weather forecast information includes cloud cover, precipitation probability, and atmospheric transparency; the solar position parameters include solar altitude angle, azimuth angle, and sunrise and sunset times; the building geometry model includes floor plan, window-to-wall ratio, and interior space layout; and the surrounding occlusion information includes shadow projection data of adjacent buildings, trees, or structures.

[0073] In step S202, based on the multi-source environmental data, the natural illuminance, duration of the natural illuminance, and color temperature of the natural light in the solar synergy zone are predicted for a future time period.

[0074] Specifically, the natural illuminance level, duration of the illuminance level, and corresponding natural light color temperature variation curve of the solar synergy zone within a predetermined time range (e.g., the next 24 hours) can be predicted using ray tracing or radiative transfer models. The prediction results can be refined to a time granularity of every 5–15 minutes to support high-precision scheduling.

[0075] In step S203, the coordinated time window is determined based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature.

[0076] In one embodiment of this application, determining the coordinated time window based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature includes using the future time period that simultaneously satisfies the following conditions as the coordinated time window:

[0077] (1) The natural light intensity is higher than the first preset threshold;

[0078] (2) The duration of the natural illuminance exceeds the second preset threshold;

[0079] (3) The color temperature of the natural light is higher than the third preset threshold;

[0080] (4) The future time period overlaps with the user's preset active time period;

[0081] (5) The combination of the natural light intensity, the duration of the natural light intensity, and the color temperature of the natural light satisfies the effective irradiance for vitamin D synthesis.

[0082] In this implementation, by obtaining the time period in the future when natural sunlight can be coordinated, a collaborative strategy for artificial lighting and natural light resources can be planned in advance to optimize the bioavailability and energy efficiency of the indoor light environment. By introducing quantitative indicators such as the light dose threshold required for vitamin D synthesis, health goals are transformed into measurable and controllable technical parameters, thereby realizing a health-oriented lighting and space coordination strategy.

[0083] Specifically, based on predicted collaborative time windows, the system can dynamically reduce or turn off artificial light sources during periods of sufficient natural light and meeting healthy illuminance thresholds, thereby lowering energy consumption. Simultaneously, as the window approaches, it proactively guides users to the solar synergy zone, increasing their chances of receiving effective sunlight exposure, thus supporting key physiological functions such as circadian rhythm regulation and vitamin D synthesis. Furthermore, this mechanism can be integrated with building shading, light guiding, or smart glass systems to further enhance the controllability and utilization efficiency of natural light, achieving the dual goals of health orientation and sustainable design.

[0084] In one embodiment of this application, the lighting control method for weak window spaces described in this application further includes the following steps S204 to S206.

[0085] In step S204, before the start of the coordinated time window, the lighting units of the normal activity area are controlled to be in lighting mode, and the lighting units of the transition guidance area and the sunlight coordination area are controlled to be inactive mode.

[0086] The lighting mode refers to the lighting unit being in normal working condition, providing basic illuminance to meet the user's visual task needs; the inactive mode refers to the lighting unit being turned off or maintaining a standby state with extremely low power consumption to avoid unnecessary energy consumption and reduce potential interference with the user's light environment.

[0087] In step S205, within the coordinated time window, the lighting units of the normal activity area are switched to the inactive mode, and the lighting units of the transition guidance area and the sunlight coordination area are switched to the lighting mode.

[0088] In this embodiment, by setting the lighting units in the normal activity area to an inactive mode, users can be encouraged to temporarily leave their usual work positions, promoting behavioral transitions and spatial mobility. Simultaneously, the daylighting coordination zone provides artificial supplemental lighting that harmonizes with natural light, ensuring users receive sufficient effective light exposure during this period.

[0089] In step S206, after the collaborative time window ends, the lighting unit of the normal activity area is switched to the lighting mode, and the lighting units of the transition guidance area and the sunlight collaborative area are switched to the inactive mode.

[0090] In one embodiment of this application, the validity period determination mechanism of the collaborative time window includes: continuously monitoring the actual natural illuminance within the solar irradiance collaborative zone; determining whether the actual natural illuminance is lower than the preset illuminance demand threshold on which the collaborative time window is opened, and whether the duration of the actual natural illuminance exceeds the preset tolerance duration; if so, determining that the validity period of the collaborative time window has ended; otherwise, determining that the current period is still within the validity period of the collaborative time window.

[0091] In this implementation, a complete collaborative intervention cycle is completed through steps S204 to S206. This cycle is triggered by a collaborative time window, enabling the lighting system to switch between normal activity zones, transition guidance zones, and daylight coordination zones in an orderly manner, as detailed in Table 1. The entire process forms a closed-loop control, which not only ensures the efficient use of artificial lighting resources but also effectively supports the user's physiological rhythm regulation and the development of healthy behaviors through the dynamic reconstruction of ambient light signals, thereby achieving the intelligent creation of a healthy light environment in spaces with weak windows.

[0092] Table 1. Working Status of Lighting Units in Each Functional Area

[0093] Collaborative Time Window Function Area Regular activity area Transition guidance area Rizhao Collaborative Zone Before the start of the collaborative time window Lighting modes Inactive mode Inactive mode Within the collaborative time window Inactive mode Lighting modes Lighting modes After the collaborative time window ends Lighting modes Inactive mode Inactive mode

[0094] In step S300, within the coordinated time window, the lighting unit of the transition guidance area is activated to generate a dynamic light path connecting the normal activity area and the solar coordination area.

[0095] The dynamic light path, through time-series control, brightness gradation, color temperature changes, or light flow effects, forms directional and guiding visual cues in space, thereby guiding users from the normal activity area to the sunlight synergy area to receive natural light that meets the vitamin D synthesis light dose threshold.

[0096] Please see Figure 6 The diagram shown is a flowchart of dynamic optical path control within a collaborative time window according to an embodiment of this application.

[0097] like Figure 6 As shown, within the collaborative time window, the steps S301 to S305 are also included.

[0098] In step S301, an initial dynamic light path is generated using the illumination unit of the transition guide area.

[0099] In step S302, the user's behavioral response to the initial dynamic optical path is monitored in real time.

[0100] Specifically, the behavioral response includes the user's movement direction and movement speed.

[0101] In step S303, based on the behavior response and combined with a preset mobile intent recognition model, it is determined whether the user has the intention to move from the normal activity area to the sunshine coordination area.

[0102] The mobile intent recognition model is trained based on historical user behavior data and is used to distinguish between actively heading there and randomly passing by.

[0103] In step S304, if so, the initial dynamic optical path is maintained unchanged.

[0104] In step S305, otherwise the visual parameters of the initial dynamic light path are adjusted to form a new dynamic light path; the visual parameters include light brightness, flashing frequency or light color.

[0105] In this embodiment, the new dynamic light path will replace the initial dynamic light path and will be monitored in real time to ensure the accuracy and adaptability of the guidance effect.

[0106] The identification of movement intent is not simply trajectory tracking or location detection, but rather relies on an artificial intelligence model to deeply understand user behavior patterns, possessing intelligence and context awareness capabilities. This movement intent recognition model is trained using historical behavior data to learn user movement patterns under specific times, lighting conditions, and activity contexts, achieving a semantic-level understanding of behavioral intent. This discriminative ability directly determines whether to activate the dynamic light path, avoiding ineffective guidance and improving system energy efficiency and user experience.

[0107] In this implementation, the lighting guidance strategy is adaptively optimized by dynamically adjusting the dynamic light path. This mechanism can intelligently adjust the intensity of light environment stimulation based on the user's real-time behavior, maximizing guidance effectiveness while minimizing interference. This more reliably encourages users to go to the solar-coordinated zone to receive effective natural light, improving vitamin D synthesis efficiency and circadian rhythm synchronization, while also considering user experience and system energy efficiency.

[0108] In one embodiment of this application, the lighting control method for weak window spaces further includes: in the solar eclipse coordination zone, dynamically compensating for natural light fluctuations through auxiliary lighting to maintain the target illuminance level.

[0109] The visual parameters of the auxiliary lighting are matched with the predicted natural light for the current time period. For example, when natural light is sufficient, the auxiliary lighting automatically reduces its output or turns off; when cloud cover, sudden weather changes, or sunset causes natural light to decay, the auxiliary lighting immediately activates and adjusts its output parameters to ensure that the synthetic light environment continuously approaches the target healthy light standard in terms of illuminance and spectral dimensions. This ensures the stability of the light dose required for physiological processes such as vitamin D synthesis and circadian rhythm regulation, while avoiding visual discomfort or circadian rhythm disruption caused by sudden changes in light intensity.

[0110] The lighting control method described in this application will be illustrated below through a specific embodiment.

[0111] Taking an underground office space as an example, this space lacks direct natural lighting, and users mainly work at their individual workstations in the regular activity area. Based on geographical location, season, and daily weather data, the system identifies the period from 12:00 to 13:00 each day as the solar-lighting window, during which the ground-level lighting openings or adjacent public areas can obtain better natural lighting conditions.

[0112] Please see Figure 7 The above is a flowchart of a lighting control method for a weak window space according to another embodiment of this application.

[0113] like Figure 7 As shown, when the collaborative time window is open, the system performs the following operations:

[0114] 1. Path activation: The footlights located in the transition guidance area gradually brighten from the user's workstation direction along the preset path leading to the light outlet or public activity area, forming a dynamic light flow from near to far;

[0115] 2. Directional Enhancement: The wall lights in the transition guidance area simultaneously increase their brightness and are adjusted in conjunction with color temperature to create a visually guiding outline with a sense of spatial depth and directional indication;

[0116] 3. Behavioral guidance: The above light signals together form a low-interference, high-perception dynamic light path, naturally guiding the user from the normal activity area, through the transition guidance area, to the solar synergy area with natural lighting conditions.

[0117] 4. Stay prompt: When a user enters the daylighting zone, the lighting units in that area automatically switch to the lighting mode and use soft ambient light to prompt the user to stay briefly in order to receive effective natural light.

[0118] 5. Status Reset: After the stay ends, the system automatically shuts down the guide path and the lighting units in the normal activity area return to the lighting mode to support the visual and physiological needs of subsequent work periods.

[0119] This embodiment fully demonstrates that the method of this application achieves an organic unity between healthy light intervention and user experience in a weak window environment through spatiotemporal coordination, perception guidance, and dynamic reconstruction of the light environment.

[0120] It should be noted that the protection scope of the lighting control method for weak window spaces described in this application is not limited to the execution order of the steps listed in this embodiment. Any solution implemented by adding, subtracting, or replacing steps in the prior art based on the principles of this application is included within the protection scope of this application.

[0121] Please see Figure 8 The image shown is a schematic diagram of a lighting system for a space with weak windows according to an embodiment of this application.

[0122] like Figure 8 As shown, this application provides a lighting system for spaces with weak windows. The space with weak windows includes several functional areas; these functional areas include a normal activity area, a transition guidance area, and a daylighting coordination area. The system includes a first lighting unit, a second lighting unit, a third lighting unit, and a lighting control device for the space with weak windows.

[0123] In one embodiment of this application, the first lighting unit is disposed in the normal activity area; the second lighting unit is disposed in the transition guidance area; the third lighting unit is disposed in the daylighting coordination area; the lighting control device for weak window space is electrically connected to the first lighting unit, the second lighting unit and the third lighting unit, and is used to perform the lighting control method for weak window space as described in any of the above claims.

[0124] Please see Figure 9 The image shown is a schematic diagram of a lighting control device for a weak window space according to an embodiment of this application.

[0125] like Figure 9 As shown, the lighting control device for weak window spaces includes a region division module, a window determination module, and a path generation module.

[0126] The area division module is used to dynamically divide the weak window space into several functional areas based on preset space usage rules. The functional areas include: a normal activity area, which is configured to support users to perform daily activities; a transition guidance area, which is configured to provide behavioral guidance through visual means; and a sunlight coordination area, which is configured to support users to receive natural light.

[0127] The window determination module is used to obtain the time period in the future when natural sunshine coordination can be carried out, and defines it as the coordination time window.

[0128] The path generation module is used to activate the lighting unit of the transition guidance area within the collaborative time window to generate a dynamic light path connecting the normal activity area and the sunlight collaboration area; the dynamic light path is used to guide the user to move from the normal activity area to the sunlight collaboration area to receive natural light, so as to promote vitamin D synthesis in the body.

[0129] It should be noted that the working principles of the first lighting unit, the second lighting unit, the third lighting unit, and the lighting control device for weak window spaces in this embodiment have been described in detail in the steps of the lighting control method for weak window spaces described above, so they will not be repeated here.

[0130] Please see Figure 10 The image shown is a schematic diagram of the structure of a terminal according to an embodiment of this application.

[0131] like Figure 10 As shown, this application embodiment provides a terminal, including:

[0132] A memory for storing computer programs.

[0133] A processor, the processor being configured to execute a computer program stored in the memory, so as to cause the terminal to perform any of the methods described above.

[0134] Preferably, the processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0135] This embodiment also includes one or more of the following: a multimedia component, an input / output (I / O) interface, and a communication component.

[0136] The multimedia component may include a screen and an audio component. The screen may be, for example, a touchscreen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in memory or transmitted via a communication component. The audio component also includes at least one speaker for outputting audio signals. The I / O interface provides an interface between the processor and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual or physical buttons. The communication component is used for wired or wireless communication between the timer and other devices. Wireless communication includes, for example, Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of these. Therefore, the corresponding communication component may include a Wi-Fi module, a Bluetooth module, or an NFC module.

[0137] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, or methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules / units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or units may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of apparatuses or modules or units may be electrical, mechanical, or other forms.

[0138] The modules / units described as separate components may or may not be physically separate. The components shown as modules / units may or may not be physical modules; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules / units can be selected to achieve the objectives of the embodiments of this application, depending on actual needs. For example, the functional modules / units in the various embodiments of this application may be integrated into one processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into one module / unit.

[0139] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0140] The descriptions of the processes or structures corresponding to the above figures each have their own emphasis. For parts of a process or structure that are not described in detail, please refer to the relevant descriptions of other processes or structures.

[0141] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A lighting control method for spaces with weak windows, characterized in that, include: Based on preset space usage rules, the weak window space is dynamically divided into several functional areas; The functional areas include: a routine activity area, configured to support users in performing daily activities; a transition guidance area, configured to provide behavioral guidance through visual means; and a sunlight coordination area, configured to support users in receiving natural light. The time period during which effective natural light exposure can be achieved in the future is obtained and defined as the collaborative time window; the effective natural light exposure refers to natural light conditions that can meet the preset vitamin D synthesis light dose threshold. Within the coordinated time window, the lighting unit of the transition guidance area is activated to generate a dynamic light path connecting the normal activity area and the sunlight coordination area; the dynamic light path is used to guide the user to move from the normal activity area to the sunlight coordination area to receive natural light that meets the vitamin D synthesis light dose threshold.

2. The method according to claim 1, characterized in that, Based on preset space usage rules, the weak window space is dynamically divided into several functional areas, including: Based on historical user behavior data, areas where users stay for more than a preset threshold in the weak window space are identified and defined as the normal activity area; Based on the space usage frequency heat map, the highest frequency passage path connecting the normal activity area and the building lighting interface is extracted and defined as the transition guidance area; The open space within the vicinity of the end point of the highest frequency travel path that meets the preset light requirement threshold is defined as the solar synergy zone.

3. The method according to claim 1, characterized in that, Obtain the time period during which effective natural light exposure can be achieved in the future, and define it as the collaborative time window, including: Acquire multi-source environmental data; the multi-source environmental data includes meteorological forecast information, solar position parameters, building geometric models, and surrounding shading information; Based on the multi-source environmental data, predict the natural illuminance, duration of the natural illuminance, and color temperature of the natural light in the solar synergy zone in the future time period. The coordinated time window is determined based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature.

4. The method according to claim 3, characterized in that, Based on the natural illuminance, the duration of the natural illuminance, and the natural light color temperature, determining the coordinated time window includes using the future time period that simultaneously satisfies the following conditions as the coordinated time window: The natural light intensity is higher than a first preset threshold; The duration of the natural illuminance exceeds the second preset threshold; The color temperature of the natural light is higher than a third preset threshold. The future time period overlaps with the user's preset active time period; The combination of the natural light intensity, the duration of the natural light intensity, and the color temperature of the natural light satisfies the effective irradiance for vitamin D synthesis.

5. The method according to claim 1, characterized in that, Also includes: Before the start of the coordinated time window, the lighting units in the normal activity area are controlled to be in lighting mode, and the lighting units in the transition guidance area and the sunlight coordination area are in inactive mode. Within the coordinated time window, the lighting units in the normal activity area are switched to inactive mode, and the lighting units in the transition guidance area and the sunlight coordination area are switched to lighting mode. After the coordination time window ends, the lighting unit in the normal activity area is switched to lighting mode, and the lighting units in the transition guidance area and the sunlight coordination area are switched to inactive mode.

6. The method according to claim 1, characterized in that, Within the coordinated time window, it also includes: An initial dynamic light path is generated using the lighting unit in the transition guide area; Real-time monitoring of the user's behavioral response to the initial dynamic optical path; the behavioral response includes the user's movement direction and movement speed; Based on the behavioral response, and combined with a preset mobile intent recognition model, it is determined whether the user intends to move from the normal activity area to the sunshine coordination area; the mobile intent recognition model is trained based on historical user behavior data and is used to distinguish between active heading and random passing by. If so, then the initial dynamic optical path remains unchanged; Otherwise, adjust the visual parameters of the initial dynamic light path and form a new dynamic light path; the visual parameters include light brightness, flashing frequency or light color.

7. The method according to claim 1, characterized in that, The validity period determination mechanism for the collaborative time window includes: Continuously monitor the actual natural illuminance within the aforementioned solar synergy zone; Determine whether the actual natural illuminance is lower than the preset illuminance requirement threshold on which the collaborative time window is opened, and whether the duration of the actual natural illuminance exceeds the preset tolerance duration. If so, then the validity period of the collaborative time window is determined to have ended; Otherwise, it is determined that the current period is still within the validity period of the aforementioned collaborative time window.

8. The method according to claim 1, characterized in that, Also includes: When the weak window space is a windowless space, the solar synergy zone is replaced by a simulated natural light source instead of a real natural lighting interface; The simulated natural light source is configured to emit a spectrum containing an effective UVB band to directly promote vitamin D synthesis; and the transition guidance region is dynamically defined based on the highest frequency passage path connecting the normal activity region and the simulated natural light source.

9. A lighting system for spaces with weak windows, characterized in that, The weak window space includes a normal activity area, a transition guidance area, and a sunlight coordination area; the system includes: A first lighting unit is disposed in the normal activity area; A second lighting unit is disposed in the transition guide area; The third lighting unit is located in the solar synergy zone; A lighting control device for a space with weak windows, electrically connected to the first lighting unit, the second lighting unit and the third lighting unit, for performing the method as described in any one of claims 1 to 8.

10. A terminal, characterized in that, include: The memory is used to store computer programs; A processor for executing a computer program stored in the memory to cause the terminal to perform the method of any one of claims 1 to 8.

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