Detection Method and Control System for DC Centralized Drive Lighting Equipment

Abstract

The present invention relates to a detection technology for centralized control of DC lighting, solves the technical problems of low intelligence and inconvenience in existing DC lighting detection, and provides a detection method and a layout control system for DC centralized drive lighting equipment. The detection method includes: monitoring and obtaining the working state information of each lamp in the lamp group; detecting whether there are faulty lamps in each lamp group according to the working state information of each lamp in the lamp group, wherein the working state information includes current data, voltage data and power data; if so, alarming according to the fault information of the faulty lamp and at the same time adjusting the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located to obtain a second lighting control strategy; controlling the lamp group in the lighting space where the faulty lamp is located to perform lighting according to the second lighting control strategy. The present invention realizes intelligent detection in the DC lighting control system, simplifies the difficulty of fault detection and is convenient for maintenance.

Description

[0001] This divisional application is for an invention patent application titled "Intelligent Control Method and System for a DC Centralized Lighting Device", with an application number of 202410622147.8, and was filed on May 20, 2024. Technical Field

[0002] The present invention relates to the technical field of DC lighting detection, and particularly to a detection method and a layout control system for a DC centralized drive lighting device. Background Art

[0003] In crowded places such as high-speed railway stations, airports, and shopping malls, traditional AC power supply lighting systems are usually adopted. These systems generally adopt a 1 + n structure. In the 1 + n system architecture, as Figure 1 shown, each lamp is connected to a single-lamp drive power supply, which is responsible for providing the alternating current required by the lamp and supplying it to the lamp. In addition, a communication local area network connects the single-lamp controller, the single-pass controller, and the single-lamp drive power supply to achieve centralized control and management of the lamps. This system uses an AC power supply for power supply, and the lamps are illuminated through alternating current. The design of the AC power supply system is relatively simple, with a relatively low initial investment cost, and is suitable for general lighting requirements.

[0004] Due to the use of a distributed power supply structure, the maintenance and management work is relatively complex. It is necessary to regularly inspect and maintain each lighting point, especially at high-altitude installation positions, where the repair and replacement costs are relatively high. Due to the special nature of the lamp installation positions, such as high altitude, ceiling, etc., special equipment and techniques are required for maintaining and replacing the lamps, resulting in high costs. Moreover, traditional AC power supply systems have safety risks of electric leakage and electric shock during use, especially in high-humidity and humid environments, where the risk of electric leakage is more prominent.

[0005] Although the AC power supply lighting system has certain convenience and cost advantages, there are many problems in terms of maintenance and safety, and more advanced lighting solutions are needed to improve the maintenance efficiency and safety. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide a detection method and a layout control system for a DC centralized drive lighting device, which solve the technical problems of low intelligence and lack of convenience in existing DC lighting detection.

[0007] In a first aspect, embodiments of the present invention provide a detection method for a DC centralized drive lighting device, where the DC centralized drive lighting device includes: a lamp group, a distribution box, and an AC power supply;

[0008] Among them, the lamp group includes a number of lamps connected in parallel, and the distribution box includes a dimming module, a lamp detection module and a switch module; one end of the switch module is electrically connected to the AC power supply, and the other end is electrically connected to the input end of the dimming module; the input end of the dimming module is electrically connected to the AC power supply, and the output end of the dimming module is electrically connected to the lamp group, which is used to convert the alternating current from the AC power supply into direct current to supply power to the lamp group and perform lighting control on the lamp group; the input end of the lamp detection module is connected to the lamp group, which is used to obtain the working state information of each lamp;

[0009] The detection method includes:

[0010] Monitor and obtain the working state information of each lamp in the lamp group;

[0011] According to the working state information of each lamp in the lamp group, detect whether there are faulty lamps in each lamp group, where the working state information includes current data, voltage data and power data;

[0012] If there is, adjust the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the fault information of the faulty lamp to obtain a second lighting control strategy;

[0013] According to the second lighting control strategy, control the lamp group in the lighting space where the faulty lamp is located to perform lighting.

[0014] Preferably, the detecting whether there are faulty lamps in each lamp group according to the working state information of each lamp in the lamp group includes:

[0015] Obtain the first historical state information when each lamp group executes the first lighting control strategy;

[0016] According to the first historical state information, determine the current reference value, voltage reference value and power reference value of each lamp group;

[0017] According to the current reference value, the voltage reference value and the power reference value, judge whether there are faulty lamps in each lamp group.

[0018] Preferably, the adjusting the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the fault information of the faulty lamp to obtain a second lighting control strategy includes:

[0019] According to the first historical state information of the lamp group where the faulty lamp is located, obtain the current change trend, voltage change trend and power change trend of the faulty lamp;

[0020] Analyze the current change trend, the voltage change trend, and the power change trend to determine the failure mode;

[0021] Obtain fault information according to the failure mode and the location information of the lamp group where the faulty lamp is located;

[0022] Obtain a brightness compensation value according to the first lighting control strategy of the lamp group where the faulty lamp is located;

[0023] Adjust the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the brightness compensation value to obtain the second lighting control strategy.

[0024] Preferably, the adjusting the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the brightness compensation value to obtain the second lighting control strategy includes: If the lighting space where the faulty lamp is located includes only one lamp group, adjust the first lighting control strategy of the lamp group where the faulty lamp is located according to the number of lamps in the lamp group where the faulty lamp is located and the brightness compensation value to obtain the second lighting control strategy.

[0025] Preferably, the adjusting the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the brightness compensation value to obtain the second lighting control strategy includes:

[0026] If the lighting space where the faulty lamp is located includes multiple lamp groups, obtain the lamp layout information of the lighting space where the faulty lamp is located;

[0027] Obtain the distance between each lamp group and the faulty lamp according to the lamp layout information;

[0028] Divide each of the lamp groups into at least a first lamp group and a second lamp group according to the distance;

[0029] Obtain a brightness adjustment value for each first lamp group according to the brightness compensation value, the distance between the first lamp group and the faulty lamp, and the number of lamps in each first lamp group;

[0030] Adjust the first lighting control strategy of the corresponding first lamp group according to the brightness adjustment value to obtain the second lighting control strategy.

[0031] Preferably, the brightness compensation value is obtained by the following formula:

[0032]

[0033] Wherein, Lc is the brightness compensation value, k1 and k2 are constants used to adjust the intensity of brightness compensation, d represents the average distance between the faulty lamp and other lamps in the lighting space, Lavg is the average brightness of other lamps in the lighting space, α is the influence coefficient of ambient light intensity on brightness compensation, and Lenv is the ambient light intensity of the lighting space where the faulty lamp is located.

[0034] Preferably, the brightness adjustment value is negatively correlated with the distance between the first lamp group and the faulty lamp, and the brightness adjustment value is negatively correlated with the number of lamps in the first lamp group.

[0035] Preferably, the distance between the first lamp group and the faulty lamp is less than or equal to a preset distance threshold, the distance between the second lamp group and the faulty lamp is greater than the preset distance threshold, and the preset distance threshold is determined based on the lamp layout information.

[0036] Preferably, the dimming module, the lamp detection module, and the switch module are integrated in the distribution box.

[0037] In a second aspect, an embodiment of the present invention further provides a detection and control system for a DC centralized drive lighting device, the system includes: a sensor module, a communication module, and a controller, wherein the sensor module is used to obtain the status information of the lamp group, the communication module is communicatively connected to the DC centralized drive lighting device, and the controller is used to execute the detection method according to any one of claims 1-9.

[0038] In summary, the beneficial effects of the present invention are as follows:

[0039] The detection method and control system for a DC centralized drive lighting device provided by the embodiments of the present invention have the advantages of high intelligence level, convenient maintenance, and low cost, which bring significant improvements and enhancements to the operation and management of the lighting system. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, and all of these are within the protection scope of the present invention.

[0041] Figure 1 It is a schematic structural diagram of an AC-powered lighting system in the background art of the present invention.

[0042] Figure 2 It is a schematic structural diagram of a DC centralized lighting device according to an embodiment of the present invention.

[0043] Figure 3It is a schematic flowchart of the intelligent control method for the DC centralized lighting device according to an embodiment of the present invention.

[0044] Figure 4 It is a schematic flowchart of the intelligent control method for another DC centralized lighting device according to an embodiment of the present invention.

[0045] Figure 5 It is a schematic flowchart of the intelligent control method for another DC centralized lighting device according to an embodiment of the present invention. Detailed implementation manners

[0046] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only provided to provide a better understanding of the present invention by showing examples of the present invention.

[0047] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0048] Embodiment 1

[0049] Please refer to Figure 2 , an embodiment of the present invention provides a DC centralized lighting device, and the device includes:

[0050] Lamp group;

[0051] Distribution box;

[0052] AC power supply;

[0053] Among them, the lamp group includes several lamps connected in parallel, and the distribution box includes a dimming module and a lamp detection module; one end of the switch module is electrically connected to the AC power supply, and the other end is electrically connected to the input end of the dimming module; the input end of the dimming module is electrically connected to the AC power supply, and the output end is electrically connected to the lamp group, and is used to convert the alternating current from the AC power supply into direct current to supply power to the lamp group and perform lighting control on the lamp group; the input end of the lamp detection module is connected to the lamp group and is used to obtain the status information of each lamp.

[0054] Specifically, the lamp group refers to a group of lamps installed at specified positions in the lighting space, which can be LED lamps, fluorescent lamps, etc. These lamps are connected in parallel to form a lamp group. One or more lamp groups can be set in a lighting space; the distribution box is a device for centralized power supply and control management, which includes a dimming module and a lamp detection module. The distribution box is usually installed near the lamp group or other convenient management positions; the AC power supply is a device that provides electrical energy. The AC power supply is input into the distribution box for supplying power to the lamp group and related equipment; the dimming module is a device located in the distribution box and is used to adjust the current to control the lighting of the lamps. It is responsible for converting the current from the AC power supply into direct current and adjusting it as needed to achieve the adjustment of the brightness, color temperature, color and other parameters of the lamps; the lamp detection module is also located in the distribution box and is used to monitor and obtain the status information of each lamp in the lamp group, such as power, working status, etc.

[0055] Its working principle is as follows: The AC power supply provides AC electrical energy to the distribution box. The switch module in the distribution box converts the alternating current into direct current and supplies it to the lamp group for power supply. The dimming module receives the conversion of the AC power supply into direct current, controls the lighting parameters of the lamp group, and adjusts the output current according to the externally input control signal to achieve the lighting parameters of the lamps. The lamp detection module monitors and obtains the status information of each lamp in the lamp group, and the status information includes but is not limited to brightness parameters, color temperature parameters, color parameters, etc.; system managers can monitor and adjust the lighting parameters and working status of the lamps in real time through the control interface in the distribution box or the remote control system.

[0056] Since a DC power supply system is used, it can reduce energy conversion losses, improve energy efficiency. The dimming module can achieve brightness adjustment of the lamps to meet the lighting needs in different environments. The lamp detection module can monitor the status information of the lamps in real time, which is convenient for timely discovery and handling of faults, improving the reliability and stability of the system. The DC power supply system is safer and more stable than the AC power supply system, and can effectively reduce the safety risks of electric leakage and electric shock; centralized management and monitoring make the maintenance of the system more convenient, reducing the maintenance cost and repair time.

[0057] Specifically, integrating the dimming module, the lamp detection module, and the switch module into the distribution box reduces the number of components and connection methods in the system, making the system structure more concise and clear. The various modules integrated inside the distribution box can be arranged more compactly, saving the space required for equipment installation. This advantage is particularly significant in some places with limited space, such as crowded places like high-speed railway stations. The integrated design reduces the connection points and the number of components in the system, reducing potential failure points and improving the reliability and stability of the system. In addition, the signal transmission between the various modules integrated in the same box is more reliable, reducing signal interference and loss. The modules integrated in the distribution box are easy to maintain and manage. Maintenance personnel can perform maintenance at one location, saving the time for finding and handling faults. In addition, the integrated design can also reduce the cost of system maintenance and repair.

[0058] When maintenance is required, maintenance personnel only need to open the distribution box to conveniently inspect and replace the various internal modules. Such a design makes the maintenance work more efficient and fast, reducing the maintenance time and cost and improving the maintainability of the system.

[0059] Preferably, the dimming module includes a dimming unit and a driving unit. The input end of the dimming unit is connected to the output end of the lamp detection module, and the output end of the dimming unit is connected to the signal input end of the driving unit, for generating a lighting control signal according to the status information and sending it to the driving unit. The power input end of the driving unit is electrically connected to the AC power supply, and the power output end is connected to the lamp group. The driving unit is used to convert the alternating current into direct current and regulate the direct current output to the lamp group according to the lighting control signal.

[0060] Specifically, the dimming module includes two main parts, namely the dimming unit and the driving unit. The dimming unit is responsible for receiving the status information from the lamp detection module, generating a lighting control signal according to this information, and sending it to the driving unit. The driving unit is responsible for receiving and parsing the control signal sent by the dimming unit, and then regulating the direct current output to the lamp group according to the signal. The dimming unit is an important part of the control system. It is responsible for generating corresponding lighting control signals according to the status information of the lamps. These status information may include the brightness, power, current, etc. of the lamps. The dimming unit calculates the required light brightness level according to this information and sends the corresponding control signal to the driving unit. The driving unit is a module responsible for controlling the power supply of the lamp group. It receives the control signal from the dimming unit and regulates the direct current output to the lamp group according to the signal. Usually, the driving unit will convert the AC power supply into direct current suitable for the lamp group and regulate the magnitude of the output current according to the signal sent by the dimming unit, so as to control the lighting parameters of the lamps.

[0061] Its working principle is as follows:

[0062] First, the lamp detection module collects the status information of the lamp group, such as power, current, etc., and transmits this information to the dimming unit. The dimming unit generates corresponding lighting control signals based on the received information and sends them to the driving unit. After receiving the control signal, the driving unit converts the AC power supply into DC power and adjusts the output current according to the control signal to control the brightness of the lamp group.

[0063] Through the dimming unit and the driving unit in the dimming module, the system can achieve precise lighting control, dynamically adjust the lighting parameters of the lamps according to the real-time lamp status information to meet the lighting requirements in different environments; adopting DC power supply and performing precise dimming control through the dimming module can reduce energy consumption, improve energy efficiency, and achieve the purpose of energy conservation. Integrating the dimming module and the driving unit in the distribution box simplifies the system structure, improves the stability and reliability of the system, and is also convenient for maintenance and management.

[0064] Preferably, the DC centralized lighting device further includes: an intelligent gateway, communicatively connected to the input end of the dimming unit and the output end of the fault detection unit, for transmitting the status information to the upper computer and transmitting the first lighting control instruction issued by the upper computer to the dimming unit; the dimming unit generates the lighting control signal according to the first lighting control instruction.

[0065] Specifically, the intelligent gateway is a key component in the system. It is responsible for connecting each module in the system and transmitting data to the upper computer (such as a server or a control center). Through the communication connection with the dimming unit and the fault detection unit, the intelligent gateway realizes the collection and transmission of the system status information, as well as the reception and transmission of the control instructions issued by the upper computer. Through these connections, the intelligent gateway can receive the data sent by the dimming unit and the fault detection unit in real time and transmit the data to the upper computer. At the same time, it can also receive the control instructions issued by the upper computer and transmit the instructions to the dimming unit.

[0066] As the data transmission and control center of the system, the intelligent gateway realizes the collection and transmission of the system status information and the reception and transmission of the first lighting control instruction issued by the upper computer through the communication connection with the dimming unit and the fault detection unit. The dimming unit generates corresponding lighting control signals according to the received lighting control instructions and sends them to the lamp group to achieve the lighting control of the lamp group.

[0067] The intelligent gateway realizes the connection between the system and the host computer, enabling the host computer to monitor the running state of the system in real time and send control instructions to remotely control the system, thereby improving the intelligence level and flexibility of the system. The introduction of the intelligent gateway makes the system structure more integrated, simplifies the system setup and management, and improves the maintainability and stability of the system.

[0068] Preferably, the DC centralized lighting device further includes: a manual control panel, communicatively connected to the signal input ends of the host computer and the dimming unit, for generating a second lighting control instruction in response to the operation of the system administrator and transmitting it to the dimming unit, and the dimming unit generates the lighting control signal according to the second lighting control instruction.

[0069] Specifically, the manual control panel is an important part of the system. It is usually installed near the lamp group or at a convenient operation position. The system administrator can directly control the lamp group through the manual control panel. The manual control panel communicates with the host computer and the dimming unit through a communication connection. This connection method enables the manual control panel to perform data interaction and control instruction transmission with other components in the system. When the system administrator operates through the manual control panel, the manual control panel generates a second lighting control instruction and transmits the instruction to the dimming unit. The second lighting control instruction usually includes lighting parameters that the system administrator hopes to adjust, such as brightness, color temperature, etc. After receiving the second lighting control instruction transmitted from the manual control panel, the dimming unit generates corresponding lighting control signals according to the instruction. These signals will be used to adjust the lighting parameters of the lamp group to achieve the lighting effect desired by the system administrator.

[0070] The manual control panel provides an intuitive and convenient operation method for the system administrator. The system administrator can adjust the lighting parameters of the lamp group at any time according to their own needs, improving the experience and satisfaction of the system administrator. As a backup control method, when the system fails or cannot be remotely controlled, the user can still operate the lamp group through the manual control panel, ensuring the stability and reliability of the system.

[0071] Embodiment 2

[0072] Based on the DC centralized lighting device of Embodiment 1, please refer to Figure 3 , the embodiment of the present invention further provides an intelligent control method for a DC centralized lighting device, and the method includes:

[0073] S1. According to the scene information of the lighting space where each lamp group is located, obtain the corresponding first lighting control strategy, where the first lighting control strategy includes brightness parameters, color temperature parameters, and color parameters;

[0074] Specifically, the lighting space refers to the specific area or place that needs lighting, and the scene information refers to various parameters and lighting requirements that describe the characteristics of the lighting space; in this embodiment, the lighting space can be different areas in a high-speed railway station. As a public transportation hub, the lighting space of a high-speed railway station includes various areas such as the concourse, waiting room, passageway, platform, etc. The lighting requirements for each area may be different. For example, the concourse requires overall lighting, the waiting room requires soft and comfortable lighting, and the platform requires bright lighting to ensure the safety of passengers. When the lighting space is an area in a high-speed railway station, the scene information includes the size, shape, passenger flow, usage function, etc. of each area such as the concourse, waiting room, passageway, etc., as well as the user's requirements for lighting brightness, color temperature, and color. For example, the waiting room may require comfortable lighting to enhance the waiting experience of passengers, while the platform requires sufficient lighting to ensure the safety of passengers.

[0075] The first lighting control strategy is the parameters and rules for controlling lamps determined according to the scene information, usually including brightness parameters, color temperature parameters, color parameters, etc. According to the scene information of the lighting space, such as usage and characteristics, determine the lighting requirements, design a suitable lighting scheme, and determine the layout, type, and control method of the lamps. According to the designed lighting scheme, select appropriate lamps and control devices and set their parameters to achieve the expected lighting effect.

[0076] By determining the first lighting control strategy according to the specific lighting requirements and scene characteristics, it can be ensured that the lighting effect provided by the lighting system meets the actual needs of users, improving the applicability and flexibility of the lighting system. A reasonable lighting control strategy can effectively save energy, improve energy utilization efficiency, and reduce the operating cost of the lighting system.

[0077] Preferably, obtaining the corresponding first lighting control strategy according to the scene information of the lighting space where each lamp group is located includes:

[0078] S11. Obtain the scene information and real-time environmental parameters of the lighting space where each lamp group is located, where the scene information includes scene type, current time, and passenger flow density, and the real-time environmental parameters include ambient light intensity, ambient temperature, and ambient humidity;

[0079] Specifically, the scene type refers to the type or use of the lighting space, such as the waiting area for passengers in a high-speed railway station, the platform, the corridor, etc. These scene types determine the lighting requirements of different lighting spaces and different scene types have different lighting standards. The pedestrian flow density refers to the number of people and density in the lighting space. The pedestrian flow density will affect the lighting requirements. For example, in the case of high pedestrian flow density, higher brightness may be required to ensure the safety and comfort of people. The ambient light intensity refers to the intensity of natural light. During the day, the ambient light intensity will be affected by weather and time. When designing the lighting control strategy, the ambient light intensity needs to be considered because too strong natural light may lead to over-illumination, while too weak natural light requires increasing the lighting brightness;

[0080] By obtaining this scene information and real-time environmental parameters, the actual requirements of the lighting space can be better understood, ensuring that the adjustment of the lighting control strategy conforms to the actual situation, thereby optimizing the lighting effect and improving the comfort and safety of users in the lighting space.

[0081] S12. Determine whether the ambient light intensity meets the illuminance standard corresponding to the scene type of the lighting space;

[0082] Specifically, according to the scene type of the lighting space (such as the waiting area for passengers, the platform, the corridor, etc.), the corresponding illuminance standard is determined. These standards are usually specified by relevant lighting design specifications, industry standards or regulations. For example, the illuminance standard for the waiting area for passengers in a high-speed railway station may require higher brightness to ensure the safety and comfort of passengers. Compare the real-time ambient light intensity with the illuminance standard to determine whether the current actual lighting intensity meets the requirements. For example, if the ambient light intensity is high enough to meet the illuminance standard, there is no need to further adjust the lighting control strategy; otherwise, the lighting control strategy needs to be adjusted to increase the lighting intensity.

[0083] S13. If not, match in the preset lighting strategy database according to the scene type and the current time to obtain the corresponding initial lighting control strategy, where the preset lighting strategy database includes multiple initial lighting control strategies, and the initial lighting control strategy includes brightness parameters, color temperature parameters and color parameters, and different initial lighting strategies correspond to different time periods and / or scene types;

[0084] Specifically, in this step, when the actual ambient light intensity does not meet the illuminance standard corresponding to the scene type of the lighting space, the corresponding initial lighting control strategy is obtained by matching in the preset lighting strategy database according to the scene type and the current time to compensate for the illuminance in the lighting space. This strategy includes brightness parameters, color temperature parameters and color parameters, and these parameters will vary depending on different time periods and scene types;

[0085] The preset lighting strategy database contains multiple initial lighting control strategies, each of which is targeted at a specific time period and / or scene type. Each strategy includes a brightness parameter, a color temperature parameter, and a color parameter. In the database, the corresponding initial lighting control strategy is matched according to the scene type of the current lighting space and the current time. For example, in a scene such as a passenger waiting area, the matching is performed according to the current time period (such as morning, afternoon, evening).

[0086] By matching and obtaining the corresponding initial lighting control strategy, the system can provide a strategy suitable for the current lighting requirements according to the scene type and the current time period. This helps to ensure the lighting quality of the lighting space, improve the experience and comfort of passengers, and meet the specific lighting requirements of different scenes.

[0087] S14. Adjust the brightness parameter and the color temperature parameter of the initial lighting strategy according to the crowd density to obtain an intermediate lighting control strategy, where the brightness parameter and the color temperature parameter are directly proportional to the crowd density;

[0088] Specifically, first, obtain the crowd density of the lighting space. The number of people in the lighting space can be measured in real time through sensors or other monitoring devices. Adjust the brightness parameter in the initial lighting strategy according to the crowd density. The higher the crowd density, the higher the required brightness to ensure sufficient lighting in a high-density crowd for the convenience of passengers' activities and safety. Similarly, adjust the color temperature parameter in the initial lighting strategy according to the crowd density. Generally, the higher the crowd density, the higher the required color temperature (i.e., cold color temperature) to help keep passengers awake and alert, especially at night or in low-light environments. Calculate the adjusted intermediate lighting control strategy according to the actual crowd density and the brightness and color temperature parameters in the initial lighting strategy. The brightness parameter and the color temperature parameter are directly proportional to the crowd density.

[0089] S15. Adjust the corresponding intermediate lighting control strategy according to the real-time environmental parameters of each lighting space to obtain the first lighting control strategy.

[0090] Specifically, first, obtain the real-time environmental parameters of the lighting space through sensors or monitoring devices. These parameters include ambient light intensity, ambient temperature, and ambient humidity. The ambient light intensity affects the actual lighting level of the lighting space. If the ambient light intensity is high, it may be necessary to reduce the brightness parameter in the intermediate lighting control strategy; if the ambient light intensity is low, the brightness parameter needs to be increased; the ambient temperature affects the performance of the lamps and the comfort of passengers. In the case of a higher temperature, it may be necessary to adjust the lighting control strategy to ensure the stable operation of the lamps and provide a suitable lighting effect. The ambient humidity also affects the operation and lifespan of the lamps. It is necessary to adjust the lighting control strategy according to the humidity level to ensure that the lamps operate under appropriate conditions.

[0091] Adjust the brightness parameter, color temperature parameter, and color parameter in the intermediate lighting control strategy according to real-time environmental parameters. For example, when the ambient light intensity is low, increase the brightness; when the ambient temperature is high, adjust the color temperature and color parameters to improve passenger comfort. Generate the first lighting control strategy according to the adjusted intermediate lighting control strategy. This is the strategy finally used to control the lighting system.

[0092] S2. Control the corresponding lamp group for lighting according to the first lighting control strategy;

[0093] According to the first lighting control strategy obtained in step S1, the system will apply these strategies to control the corresponding lamp group for lighting. These strategies include the setting of parameters such as brightness, color temperature, and color. According to the first lighting control strategy, the system will send instructions to the lamp group through the corresponding controller or dimming device to adjust the brightness, color temperature, and color of the lamps to achieve the expected lighting effect. These instructions may be transmitted to each lamp in the lamp group through wireless or wired communication.

[0094] In an embodiment, the scene type includes a passenger waiting area, the passenger waiting area includes several waiting areas, the waiting area includes a ticket checkpoint, at least one waiting area corresponds to at least one lamp group, and the irradiation range of the lamp group covers the corresponding waiting area;

[0095] Specifically, in this embodiment, the scene type of the lighting space is a passenger waiting area. The passenger waiting area can be the area where passengers wait in a high-speed railway station, an airport, or a railway station. It usually contains multiple waiting areas. The waiting area is a part of the passenger waiting area and usually surrounds one or more ticket checkpoints. These areas provide places for passengers to wait, rest, or wait for ticket checking. In the waiting area, the lamps of the lighting system are usually divided into several lamp groups. The irradiation range of each lamp group covers the corresponding waiting area to ensure sufficient lighting in this area;

[0096] When the scene type is a passenger waiting area, the controlling the corresponding lamp group for lighting according to the first lighting control strategy includes:

[0097] S21. When the current time belongs to the preset daytime period, judge whether the actual light in the passenger waiting area meets the corresponding illuminance standard according to the real-time environmental parameters of the passenger waiting area and the first lighting control strategy;

[0098] Specifically, the daytime period usually refers to the time range from sunrise to sunset, and the preset daytime period can be adjusted according to the actual situation. For example, the time range from sunrise to sunset is different in different regions and / or different seasons, and the preset daytime period can be adjusted according to this time range;

[0099] Since the human circadian rhythm is well adjusted to the waking and highly alert state during natural daylight in the daytime. Therefore, the lighting system does not require overly complex adjustments to ensure the wakefulness of passengers. Thus, it is only necessary to determine whether the actual illumination in the passenger waiting area meets the corresponding illuminance standard according to the real-time environmental parameters of the passenger waiting area and the first lighting control strategy. By combining the real-time ambient light intensity with the brightness parameters in the first lighting control strategy, the actual lighting level in the passenger waiting area is calculated. The actual lighting level is the result of the combined action of ambient light and artificial lighting. The calculated actual lighting level is compared with the corresponding illuminance standard. The illuminance standard is a pre-set standard, representing the ideal lighting level under a specific scene type in the passenger waiting area.

[0100] S22. If it is satisfied, then according to the first lighting control strategy, control each of the lamp groups for lighting;

[0101] Specifically, if the actual illumination meets the standard, that is, the actual lighting level is equal to or higher than the illuminance standard, it is considered that the actual illumination meets the standard. Then the lighting system does not need to make complex adjustments and can directly control the lamp groups in the passenger waiting area according to the first lighting control strategy. Passengers can rely on natural light and auxiliary lighting to stay awake and comfortable; through this simple method, energy can be saved, system complexity can be reduced, and at the same time, it is ensured that the lighting in the passenger waiting area meets the standard during the daytime period, meeting the basic lighting needs and safety needs of passengers.

[0102] If it is not satisfied, it is necessary to adjust the first lighting control strategy according to the illuminance standard to increase the actual lighting level.

[0103] S23. When the current time belongs to the preset night time period, obtain the ticket checking time schedule of each ticket gate. The ticket checking time schedule includes several ticket checking arrangement data, and the ticket checking arrangement data includes a ticket checking start time and a ticket checking end time;

[0104] Specifically, during the preset night time period, obtain the ticket checking time schedule of each ticket gate from the system or data source. This table usually contains relevant information about the ticket gates, and its ticket time arrangement data includes the following: Ticket checking start time: It refers to the time point when a certain ticket gate starts ticket checking. This is the time when passengers start to enter the ticket checking process. Ticket checking end time: It refers to the time point when a certain ticket gate ends ticket checking. The ticket checking process ends at this time point.

[0105] By obtaining the ticket checking time schedule, the ticket checking time arrangements of each ticket gate can be understood. These data will be used for subsequent adjustment of the lighting control strategy to ensure appropriate lighting is provided during the night time period, meeting the needs of passengers during ticket checking and waiting, and improving the comfort and safety of the waiting area.

[0106] S24. When the difference between the current time and the next ticket-checking time is greater than a first preset difference, adjust the brightness parameter of the first lighting control strategy according to the illuminance standard value of the passenger waiting area;

[0107] Specifically, first, obtain the current time and the next ticket-checking time, and calculate the difference between the current time and the next ticket-checking time, that is, the time interval between the two. This reflects the remaining time from now until the start of the next ticket-checking. Compare the calculated time difference with the first preset difference. If the time difference is greater than the first preset difference, it means there is still a long time until the start of the next ticket-checking. At this time, only make the brightness meet the illuminance standard value of the passenger waiting area stipulated by the industry to meet the lighting needs of passengers in the passenger waiting area.

[0108] S25. Adjust the color temperature parameter and color parameter of the first lighting control strategy according to the current time and a pre-constructed human rhythm model, where the human rhythm model takes the current time as input and outputs the brightness parameter, color temperature parameter, and color parameter;

[0109] Specifically, the pre-constructed human rhythm model is constructed based on the regular changes of the human rhythm cycle that describe the physiological and behavioral changes of the human body during a day. These changes are regulated by the internal biological clock and circadian rhythm and are affected by external environmental factors (such as light). The human rhythm model matches the corresponding color temperature parameter and color parameter according to the current time. These parameters are used to adjust the hue of the lighting to match the natural rhythm of the human body and ensure that passengers obtain a comfortable lighting experience in the passenger waiting area;

[0110] For example but not limited to, in the initial period of night (such as 19:00 - 21:00): The color parameter output by the human rhythm model can select a warmer hue, such as the RGB value range from (255, 223, 186) to (255, 228, 181), approaching the light color at sunset. This hue helps passengers transition from the high-alert state during the day to the relaxed state at night. The color temperature parameter output by the human rhythm model is set in a lower range, for example, 3000K to 3500K. This warm light helps to relax the body and mind and prepares to enter the rest stage at night.

[0111] In the middle period of night (such as 21:00 - 23:00): The color parameter output by the human rhythm model can continue to select a warmer hue, such as the RGB value range from (255, 204, 153) to (255, 184, 128), approaching the light color after sunset. This hue helps to maintain the relaxed state and further prepares to fall asleep. At the same time, the color temperature parameter output by the human rhythm model can be set between 2500K and 3000K. This warmer color temperature is more conducive to promoting the secretion of melatonin and helping passengers fall asleep;

[0112] Late night period (e.g., 23:00 - early morning): Color parameters output by the human rhythm model: Very soft warm colors can be selected, such as RGB values in the range of (255, 153, 102) to (255, 128, 85), which are close to the color of moonlight or candlelight. This soft color helps passengers relax and fall asleep more easily. Color temperature parameter: The color temperature can be set between 2000K and 2500K. This low color temperature is closer to the color of fire or candlelight and is most helpful for promoting sleep.

[0113] According to the human rhythm model and the current time, adjust the color temperature parameter and color parameter of the passenger waiting area during the night period. This helps to provide a more comfortable lighting environment for passengers, allowing them to rest and relax in the passenger waiting area during a longer period before the ticket checking time, and improving the waiting experience.

[0114] S26. Control the lighting of the lamp group corresponding to the passenger waiting area according to the adjusted first lighting control strategy;

[0115] Specifically, apply the adjusted first lighting control strategy to the lamp group corresponding to the passenger waiting area for lighting;

[0116] S27. When the difference between the current time and the next ticket checking time of a ticket checking gate is less than the first preset difference and greater than the second preset difference, record the waiting area corresponding to the ticket checking gate as the target waiting area, and obtain the third lighting control strategy, where the third lighting control strategy includes a preset brightness parameter, a preset color temperature parameter, and a preset color parameter, and the preset brightness parameter, preset color temperature parameter, and preset color parameter are obtained based on a preset time and the human rhythm model;

[0117] Specifically, calculate the difference between the current time and the next ticket checking time, and determine whether this difference is less than the first preset difference and greater than the second preset difference. If this condition is met, then the waiting area corresponding to the ticket checking gate is defined as the target waiting area, indicating that this area is about to undergo the ticket checking operation. At this time, obtain the preset third lighting control strategy, which includes a preset brightness parameter, a preset color temperature parameter, and a preset color parameter. The preset brightness parameter, preset color temperature parameter, and preset color parameter are all obtained based on the human rhythm model and a preset time;

[0118] Among them, the preset time is usually determined according to the human biological clock and circadian rhythm. Generally, this time period is within a few hours after getting up in the morning, usually between 8 am and 10 am. Therefore, this preset time is input into the human rhythm model to obtain a preset brightness parameter, a preset color temperature parameter, and a preset color parameter. The preset brightness parameter obtained through the human rhythm model is between 500 and 1000 lux. This high brightness level simulates sunlight and helps passengers stay awake and focused; the preset color temperature parameter is close to the sunlight color temperature, that is, 5000K to 6500K. The color temperature in this range helps to improve the alertness of passengers; the preset color parameter is close to white light or cold white light, such as the RGB value range is (255, 255, 255) or (230, 230, 230). This white light color helps to provide a clear lighting environment and keep passengers awake.

[0119] By inputting the preset time into the human rhythm model, the corresponding preset brightness parameter, preset color temperature parameter, and preset color parameter can be calculated. These parameters are used to adjust the lighting during ticket checking to ensure that the lighting effect in the waiting area matches the passengers' biological clock and circadian rhythm, and improve the wakefulness and comfort of passengers.

[0120] S28. According to the first lighting control strategy and the third lighting control strategy, obtain the light adjustment rate, where the first preset difference is greater than the second preset difference, and the light adjustment rate is calculated by the following formula:

[0121]

[0122] In the formula, V light is the light adjustment rate, γ is the rate adjustment coefficient, A total is the area of the passenger waiting area, A target is the area of the target waiting area, L target is the target illuminance obtained based on the third lighting control strategy, L current is the actual illuminance obtained based on the adjusted first lighting control strategy, T is the second preset difference, f age is the influence factor of the lamp service life;

[0123] The influence factor of the lamp service life is calculated by the following formula:

[0124]

[0125] In the formula, N use is the service life of the lamp group in the target waiting area, N set is the preset service life;

[0126] Specifically, in this step, the light intensity adjustment rate is obtained according to the first lighting control strategy and the third lighting control strategy.

[0127] Where γ is an adjustment coefficient used to control the amplitude of the adjustment rate, and its value can be adjusted according to actual requirements. By analyzing historical lighting data, a suitable coefficient can be determined to ensure the stability of the system and the continuity of the lighting effect. It can also be adjusted according to the feedback and experience of passengers to provide an optimal lighting environment, improving passenger comfort and satisfaction.

[0128] By introducing this coefficient, the adjustment rate of the lighting system can be better controlled to match the ratio between the area of the target waiting area and the total area of the passenger waiting area. This helps to optimize the performance of the lighting system and ensure that the system can provide appropriate lighting levels in different areas and conditions.

[0129] The light intensity adjustment rate is inversely proportional to the ratio of the total area of the passenger waiting area to the area of the target ticket-checking area. The smaller the area of the target ticket-checking area, the higher the adjustment rate. A smaller target waiting area requires a smaller lighting adjustment range and can be adjusted more quickly. Therefore, a higher adjustment rate can be used to adjust the lighting level in a shorter time. A larger target waiting area requires more lamp groups and lighting intensities to be adjusted. Therefore, a lower adjustment rate helps to complete the adjustment over a longer time to ensure a uniform lighting effect and avoid over-illumination.

[0130] is the difference between the target illuminance and the actual illuminance divided by the second preset time difference, representing the illuminance difference to be adjusted within the second preset time. The second preset time difference is the time to ensure that the adjustment is completed within a certain period before the ticket-checking starts. This is to provide sufficient time for lighting adjustment before the ticket-checking starts to reach the target illuminance. By dividing the illuminance difference by the preset time difference, the system can ensure that the adjustment is completed within the preset time.

[0131] f age represents the influence of the lamp aging degree on the adjustment rate. If the service life of the lamp is less than or equal to the preset life value, then f age = 1. If the service life of the lamp is greater than the preset life value, then f age = N set / N use, This setting ensures that when the service life of the lighting fixture is less than the preset value, the aging degree has no impact on the adjustment rate, and the default rate is maintained; while when the service life is greater than the preset value, the adjustment rate is inversely proportional to the age of the lighting fixture. This means that as the aging degree of the lighting fixture increases, the adjustment rate will slow down to ensure the stability of the system and avoid the additional burden on the aging lighting fixture caused by too fast adjustment. Through this adjustment, the system can better balance the rate of lighting adjustment and the aging degree of the lighting fixture, improve the stability and reliability of the system, and at the same time maintain the lighting quality and efficiency.

[0132] By calculating the light intensity adjustment rate through a formula, precise control of lighting adjustment can be achieved. This formula is based on multiple parameters such as the number of passengers waiting for ticket inspection, the area ratio of the target waiting area, the difference between the target illuminance and the actual illuminance, and the second preset time difference, ensuring that the adjustment rate accurately matches the current lighting requirements, enabling a smooth transition of the lighting level within the preset time, avoiding too fast or too slow adjustment, ensuring the stability and continuity of the lighting environment, and while making rapid adjustments, ensuring the wakefulness and safety of passengers during ticket inspection, improving the comfort of the waiting area and the overall passenger experience.

[0133] S29. Control the lighting fixture group in the target ticket inspection area to switch from the adjusted first lighting control strategy to the third lighting control strategy according to the light intensity adjustment rate;

[0134] Specifically, according to the light intensity adjustment rate, gradually adjust the lighting level in the target ticket inspection area. By controlling the lighting fixture group, gradually increase the lighting intensity to reach the target illuminance, color temperature, and color in the third lighting control strategy. By controlling the adjustment speed of the lighting fixture group, ensure that the lighting adjustment process proceeds smoothly, avoiding too fast or too slow adjustment, which may affect the passenger experience and ticket inspection efficiency. Finally, the lighting fixture group in the target ticket inspection area will provide lighting according to the third lighting control strategy. This includes the set target illuminance, color temperature, and color parameters to ensure the comfort and wakefulness of passengers during ticket inspection.

[0135] S210. When the current time reaches the ticket inspection end time, control the lighting fixture group in the target lighting area to switch to the adjusted first lighting control strategy.

[0136] When the current time reaches the ticket inspection end time, it indicates that the ticket inspection process in the target waiting area has been completed, and passengers have passed through the ticket gate to board or leave. After the preset end time, control the lighting fixture group in the target waiting area to switch back from the third lighting control strategy to the adjusted first lighting control strategy.

[0137] S3. According to the status information of each lighting fixture group, determine whether there are faulty lighting fixtures in each lighting fixture group, where the status information includes current data, voltage data, and power data;

[0138] Specifically, in this step, the system will obtain the status information of each lighting fixture group, including current data, voltage data, power data, etc. These data are collected by the lighting fixture detection module and transmitted to the system for processing. The system will analyze the collected status information to determine whether there are faulty lighting fixtures in each lighting fixture group. Common faults may include abnormal lighting fixture brightness, lighting fixture flickering, and the lighting fixture not working properly, etc.; Once the system detects that a certain lighting fixture group has a fault, it will identify and record the location information and fault type of the faulty lighting fixture.

[0139] Preferably, determining whether there are faulty lighting fixtures in each of the lighting fixture groups according to the status information of each lighting fixture group includes:

[0140] S31. Obtain the first historical status information of each lighting fixture group when implementing the first lighting control strategy;

[0141] Specifically, in this step, the system will collect and record the historical status information of each lighting fixture group when implementing the first lighting control strategy. This information may include data such as the current, voltage, and power of each lighting fixture group, as well as any other relevant operating parameters. The acquisition of these data may be achieved through the lighting fixture control system or sensors. Obtaining the first historical status information of each lighting fixture group when implementing the first lighting control strategy is to monitor and evaluate the situation of the lighting system when implementing the current first lighting control strategy. These historical status information provide a reference benchmark during the operation of the system, which helps the system identify whether there are lighting fixture faults or abnormalities;

[0142] S32. Determine the current reference value, voltage reference value, and power reference value of each lighting fixture group according to the first historical status information;

[0143] Specifically, the system will analyze the recorded first historical status information to determine the reference values of the current, voltage, and power of each lighting fixture group. These reference values can reflect the typical status when the lighting fixture group is operating normally. The system will calculate the average value, standard deviation, or other statistical indicators of each parameter and determine the reference values based on this.

[0144] Since the first historical status information is the data when the first lighting control strategy is executed, by analyzing the first historical status information, the typical status range of the luminaire group under normal operating conditions can be determined. This includes the typical values and their variation ranges of parameters such as current, voltage, and power. Determining these reference values helps to identify the normal operating status of the system and provides a reference basis for subsequent monitoring. Once the reference values for the normal operating range are established, the system can compare the current status with these reference values. Any change deviating from the reference range may indicate an abnormality or fault in the system. Therefore, anomaly detection based on the reference values can detect potential problems early and perform corresponding fault diagnosis and repair, thereby improving the reliability and stability of the system. By regularly collecting and analyzing the first historical status information, the performance changes of the system can be tracked. This helps to identify potential problem trends and take preventive maintenance measures in a timely manner to prevent the occurrence of faults. In addition, the maintenance plan based on historical data can improve the maintenance efficiency, reduce the system downtime, and save the maintenance cost.

[0145] S33. According to the current reference value, the voltage reference value, and the power reference value, determine whether there are faulty luminaires in each of the luminaire groups.

[0146] Specifically, the system will use the determined reference values of current, voltage, and power to check the current status of each luminaire group. If there are significant deviations between the actual parameters of a certain luminaire group and the reference values, the system will determine that there are faulty luminaires in that luminaire group. The deviations may be manifested as abnormally high or low current, voltage, or power, or other abnormal patterns. The system will identify and report the possible fault situations based on these deviations.

[0147] S4. If there are, alarm according to the fault information of the faulty luminaires and at the same time adjust the first lighting control strategy of the luminaire group in the lighting space where the faulty luminaires are located to obtain a second lighting control strategy.

[0148] Specifically, after detecting the faulty luminaires in step S3, the system will confirm the existence of the fault and record the specific information of the fault. The fault information includes but is not limited to the location and type of the faulty luminaires. And once the fault is confirmed, the system will trigger an alarm mechanism to send an alarm message to relevant personnel so that they can take actions to repair the fault in a timely manner. The alarm can be in the form of sound, light, text message, email, etc.

[0149] While raising an alarm, the system will automatically adjust the first lighting control strategy according to the fault information of the faulty luminaire to minimize the impact of the fault on the overall lighting effect. The adjustments may include reducing the brightness of surrounding luminaires, adjusting the color temperature or color of the luminaires, etc. The adjusted lighting control strategy is called the second lighting control strategy, which is a new strategy optimized for the fault situation. This strategy will ensure that the lighting system can continue to operate in the best state before the faulty luminaire is repaired.

[0150] Through step S4, the system can take immediate measures after detecting a faulty luminaire, including issuing an alarm, adjusting the lighting control strategy, etc., to ensure the stability and safety of the lighting system. This helps to reduce the inconvenience and losses caused by the fault and improve the reliability of the system and user satisfaction.

[0151] Preferably, if any, while raising an alarm according to the fault information of the faulty luminaire, adjusting the first lighting control strategy of the lighting space where the faulty luminaire is located to obtain the second lighting control strategy includes:

[0152] S41. Obtain the current change trend, voltage change trend, and power change trend of the faulty luminaire according to the first historical state information of the luminaire group where the faulty luminaire is located;

[0153] Specifically, obtaining the status information of the faulty luminaire is to understand the changes in current, voltage, and power of the faulty luminaire over a period of time. This can be achieved by analyzing the first historical state information of the luminaire group where the faulty luminaire is located. First, the system collects and records the current, voltage, and power data of the luminaire group where the faulty luminaire is located during the execution of the first lighting control strategy, and then processes and analyzes these data to obtain the current change trend, voltage change trend, and power change trend of the faulty luminaire.

[0154] S42. Analyze the current change trend, voltage change trend, and power change trend to determine the fault mode;

[0155] Specifically, according to the change trends of current, voltage, and power, the system performs trend analysis to determine possible fault modes. For example, if the current of the faulty luminaire gradually increases while the voltage and power do not change significantly, it may indicate a current overload problem inside the luminaire. Similarly, other change trends may also indicate different types of fault modes, such as voltage fluctuations, power drops, etc.

[0156] S43. Obtain the fault information according to the position information of the luminaire group where the faulty luminaire is located according to the fault mode;

[0157] Specifically, based on the determined fault mode and the location information of the luminaire group where the faulty luminaire is located, the system obtains detailed information about the fault. This may include information such as the location of the faulty luminaire, the luminaire model, the fault type, the fault time, etc., for further processing and alarm;

[0158] In one embodiment, each luminaire has a unique identifier or code, which can be used to determine the location of the luminaire. By recording the code of each luminaire and its corresponding location information in the system, the location of the luminaire group where the faulty luminaire is located can be quickly located; in addition to the code of a single luminaire, the luminaire groups can also be coded, and the location information of each luminaire group is recorded. This can more quickly determine the luminaire group where the faulty luminaire is located. The system may include a structural diagram or layout diagram of the building, in which the location of each luminaire group is marked. By matching the location where the faulty luminaire is located, the location of the faulty luminaire can be accurately marked in the structural diagram.

[0159] S44. Alarm according to the fault information;

[0160] Specifically, based on the obtained fault information, the system performs alarm processing. The alarm can be carried out by means of sound, light signal, text prompt, etc., in order to timely notify relevant personnel for processing and maintenance;

[0161] S45. Obtain a brightness compensation value according to the first lighting control strategy of the luminaire group where the faulty luminaire is located;

[0162] Specifically, according to the first lighting control strategy of the luminaire group where the faulty luminaire is located, the system obtains the corresponding brightness compensation value. The brightness compensation value is usually determined according to the brightness of other normally operating luminaires around the faulty luminaire and the lighting requirements, so as to maintain the uniformity and stability of the overall lighting;

[0163] In one embodiment, the brightness compensation value is obtained by the following formula:

[0164]

[0165] In the formula, Lc is the brightness compensation value, k1 and k2 are constants used to adjust the intensity of brightness compensation, d represents the average distance between the faulty luminaire and other luminaires in the lighting space, Lavg is the average brightness of other luminaires in the lighting space, α is the influence coefficient of the ambient light intensity on the brightness compensation, and Lenv is the ambient light intensity of the lighting space where the faulty luminaire is located;

[0166] Among them, the two parameters k1 and k2 are constants used to adjust the intensity of brightness compensation. They can be adjusted according to specific circumstances to meet actual requirements. d represents the average distance between the faulty lamp and other lamps. The smaller the average distance, the denser the lamps are, and only a smaller compensation value is needed to make up for the lack of light from the faulty lamp. Because the surrounding lamps are denser, the light they provide can better cover the missing part of the faulty lamp. α is the influence coefficient of ambient light on brightness compensation, and Lenv represents the intensity of ambient light. These two factors consider the ambient light conditions in the lighting space and adjust the brightness compensation. When the ambient light is strong, it may be necessary to reduce the brightness compensation for the faulty lamp; while when the ambient light is dim, it may be necessary to increase the brightness compensation to ensure that the overall brightness of the lighting space meets the requirements.

[0167] S46. Adjust the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the brightness compensation value to obtain the second lighting control strategy.

[0168] According to the obtained brightness compensation value, the system adjusts the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located, thereby obtaining the second lighting control strategy. The purpose of this is to make up for the insufficient lighting caused by the faulty lamp by adjusting the lighting parameters of the surrounding lamps when a lamp fails, ensuring that the overall lighting effect still meets the requirements.

[0169] Preferably, adjusting the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the brightness compensation value to obtain the second lighting control strategy includes:

[0170] S461. If the lighting space where the faulty lamp is located only includes one lamp group, adjust the first lighting control strategy of the lamp group where the faulty lamp is located according to the number of lamps in the lamp group where the faulty lamp is located and the brightness compensation value to obtain the second lighting control strategy;

[0171] Specifically, when the lighting space where the faulty lamp is located only contains one group of lamps, it is necessary to adjust the lighting control strategy of this group of lamps to compensate for the insufficient light caused by the faulty lamp. This adjustment is based on the number of lamps and the previously calculated brightness compensation value. Calculate the average compensation value for each lamp according to the total brightness compensation value and the number of lamps. According to the calculated average compensation value, we can adjust the lighting parameters of the lamp group where the faulty lamp is located, such as brightness, color temperature, or color. The specific adjustment method can be determined according to the actual situation, such as increasing the brightness, adjusting the color temperature, etc., to ensure the lighting uniformity of the entire lighting space. According to the adjusted lighting parameters, the second lighting control strategy can be generated. This strategy can include the specific lighting parameter settings for each lamp to ensure that the lighting effect of the entire lighting space is still good when a lamp fails.

[0172] S462. If the lighting space where the faulty lamp is located includes multiple lamp groups, obtain the lamp layout information of the lighting space where the faulty lamp is located;

[0173] Specifically, if the lighting space where the faulty lamp is located includes multiple lamp groups, it is necessary to understand the layout information of these lamp groups. This may include information such as the location, quantity, and arrangement of the lamp groups. By obtaining this information, the structure of the entire lighting space can be better understood.

[0174] S463. According to the lamp layout information, obtain the distances between each lamp group and the faulty lamp;

[0175] Specifically, according to the lamp layout information, the location of each lamp group can be determined. By using a lamp detection module or other monitoring devices, the location of the faulty lamp can be obtained. For each lamp group and the faulty lamp, calculate the distance between them, which can be calculated using methods such as the Euclidean distance formula or other distance metrics;

[0176] S464. According to the distances, divide each of the lamp groups into at least a first lamp group and a second lamp group, where the distance between the first lamp group and the faulty lamp is less than or equal to a preset distance threshold, and the distance between the second lamp group and the faulty lamp is greater than the preset distance threshold, and the preset distance threshold is determined based on the lamp layout information;

[0177] According to the obtained distance information, divide each lamp group into at least two groups: a first lamp group and a second lamp group. The purpose of this division is to distinguish the priorities of the lamp groups according to the distances between the lamp groups and the faulty lamp, so as to adjust the subsequent lighting control strategy. The preset distance threshold is determined based on the lamp layout information and is usually set by the system designer according to the actual situation. It represents the range within which the lamp groups are considered to be the first lamp group from the faulty lamp, and those beyond this range are classified into the second lamp group. The lamp groups with distances less than or equal to the preset distance threshold from the faulty lamp are classified into the first lamp group, while those with distances greater than the preset distance threshold are classified into the second lamp group. Dividing the lamp groups into two priorities according to the distances from the faulty lamp can provide a basis for the subsequent lighting control. Such a division can more effectively adjust the lighting control strategy, ensure the reasonable distribution of light in case of a fault, and improve the overall lighting effect and safety.

[0178] S465. According to the brightness compensation value, the distance between the first lamp group and the faulty lamp, and the number of lamps in each first lamp group, obtain the brightness adjustment value for each first lamp group, where the brightness adjustment value is inversely proportional to the distance between the first lamp group and the faulty lamp, and the brightness adjustment value is inversely proportional to the number of lamps in the first lamp group;

[0179] First, based on the distance between the first lamp group and the faulty lamp, calculate the distance ratio of each first lamp group. This distance ratio can be the inverse of the distance or be properly normalized so as to be combined with other parameters. Secondly, based on the number of lamps in each first lamp group, calculate the ratio of the number of lamps in each first lamp group. Combining the distance ratio with the ratio of the number of lamps, a brightness adjustment value associated with each first lamp group can be obtained. This brightness adjustment value should take into account the influence of the distance and the number of lamps on the brightness compensation. The first lamp group with a closer distance and a larger number of lamps should have a larger brightness adjustment value to compensate for the missing light of the faulty lamp.

[0180] Through the above steps, the brightness adjustment value of each first lamp group can be calculated according to the distance between the first lamp group and the faulty lamp and the number of lamps, thereby achieving dynamic adjustment of the lighting system and ensuring the lighting effect in the event of a fault.

[0181] S466: Adjust the first lighting control strategy of the corresponding first lamp group according to the brightness adjustment value to obtain the second lighting control strategy.

[0182] The first lighting control strategy currently in use is obtained from the lighting control system of the first lamp group, and the first lighting control strategy applied to the first lamp group is adjusted according to the brightness adjustment value calculated previously, and a second lighting control strategy is generated according to the adjusted lighting control strategy. This strategy will take into account the influence of the brightness adjustment value on the lighting effect, thereby ensuring that the lighting effect of the lamp group can be appropriately adjusted in the event of a fault.

[0183] Through the above steps, the first lighting control strategy of the first lamp group can be adjusted according to the brightness adjustment value, so as to obtain the second lighting control strategy for the fault situation. Such adjustment can ensure that the lighting system can still provide appropriate lighting effects when a fault occurs, ensuring the safety and comfort of the place.

[0184] S5. According to the second lighting control strategy, control the lighting fixture group in the lighting space where the faulty lighting fixture is located to perform lighting.

[0185] After determining the lighting control strategy adjustments for the faulty luminaire in step S4, the system will apply these adjustments, i.e., the second lighting control strategy, to ensure that the lighting effect in the entire lighting space reaches the optimal state. According to the second lighting control strategy, the system will send corresponding control signals to the luminaire group where the faulty luminaire is located to indicate how to perform lighting. These control signals may include adjusting parameters such as the brightness, color temperature, and color of the luminaires to adapt to the new lighting requirements. Throughout the process, the system will continuously monitor the operation of the lighting system and take measures to maintain the stability and reliability of the system when necessary. At the same time, the system may continuously provide maintenance personnel with information about the operating status of the lighting system so that they can take maintenance measures in a timely manner.

[0186] Through step S5, the system can effectively control the lighting of the luminaire group where the faulty luminaire is located according to the actual situation, so as to ensure that the lighting system can still operate normally when a fault occurs and provide a good lighting effect.

[0187] Preferably, after controlling the luminaire group in the lighting space where the faulty luminaire is located to perform lighting according to the second lighting control strategy, the method further includes:

[0188] S6. In response to the occurrence of an emergency event, obtain the space layout information and luminaire layout information of the corresponding lighting space;

[0189] Specifically, when an emergency event occurs, it is first necessary to obtain the space layout information and luminaire layout information of the corresponding lighting space. These information include space layout information such as the size, shape, and exit location of the lighting space, as well as luminaire layout information such as the location, quantity, and type of luminaires. The acquisition of these information can be obtained through on-site investigations, building drawings, or the database of the lighting system, etc.

[0190] S7. Determine the evacuation route according to the space layout information;

[0191] Specifically, according to the space layout information, determine the evacuation route in the lighting space. The evacuation route refers to the escape route that people should take in an emergency situation, which should usually be the shortest and safest route, including roads, stairs, corridors, etc. leading to the exit.

[0192] S8. According to the luminaire layout information and the evacuation route, determine the luminaire group in the lighting space for indicating the evacuation route, denoted as the evacuation luminaire group;

[0193] Specifically, according to the preset evacuation lighting control strategy, control the evacuation luminaire group to provide lighting. The preset evacuation lighting control strategy includes preset evacuation brightness parameters, preset evacuation color parameters, and the luminaire flashing frequency. The settings of these parameters should be able to provide sufficient lighting in case of an emergency, and at the same time, be able to attract people's attention and guide them along the evacuation path.

[0194] S9. According to the preset evacuation lighting control strategy, control the evacuation luminaire group to provide lighting, where the preset evacuation lighting control strategy includes: preset evacuation brightness parameters, preset evacuation color parameters, and the luminaire flashing frequency.

[0195] Specifically, according to the preset evacuation lighting control strategy, control the evacuation luminaire group to provide lighting. The preset evacuation lighting control strategy includes preset evacuation brightness parameters, preset evacuation color parameters, and the luminaire flashing frequency. The settings of these parameters should be able to provide sufficient lighting in case of an emergency, and at the same time, be able to attract people's attention and guide them along the evacuation path.

[0196] S10. According to the preset emergency lighting control strategy, control the luminaire group other than the evacuation luminaire group in the lighting space corresponding to the emergency event to provide lighting, where the preset emergency lighting control strategy includes: preset emergency brightness parameters and preset emergency color parameters, where the preset emergency brightness parameter is the rated brightness parameter of the luminaire group, the preset evacuation brightness is higher than the rated brightness parameter, the RGB value of the preset emergency color parameter is between (255, 255, 0) and (255, 215, 0), and the RGB value of the preset evacuation color parameter is between (0, 200, 0) and (255, 255, 0).

[0197] Specifically, the preset emergency brightness parameter refers to the brightness setting of the luminaire group required in case of an emergency. Usually, emergency lighting needs to be brighter than normal lighting to ensure that people can clearly see the surrounding environment and take appropriate actions. Therefore, the preset emergency brightness parameter is set to a higher value than the rated brightness parameter of the luminaire group to provide sufficient lighting.

[0198] The preset emergency color parameter refers to the color setting of the luminaire group required in case of an emergency. To distinguish it from normal lighting, a special color, such as yellow or orange, is generally selected for the preset emergency color parameter. In this solution, the RGB value range of the preset emergency color parameter is between (255, 255, 0) and (255, 215, 0), which means the color will change between yellow and orange. This color selection helps to attract people's attention and remind them that they are in an emergency state.

[0199] The preset evacuation brightness parameter refers to the brightness setting of the lamp group used to indicate the evacuation path. Compared with other lamp groups, the brightness of the evacuation lamp group should be higher to emphasize the escape route and guide people towards the safety exit. The preset evacuation color parameter refers to the color setting of the lamp group used to indicate the evacuation path. Different from the colors of other lamp groups, the color of the evacuation lamp group is usually chosen to be different from the emergency color so that people can clearly identify the evacuation path. In this solution, the RGB value range of the preset evacuation color parameter is between (0, 200, 0) and (255, 255, 0), which means the color will change from green to yellow. This color selection helps to highlight the evacuation path and guide people to evacuate safely.

[0200] Embodiment 3

[0201] Based on the intelligent control method of the DC centralized lighting device in Embodiment 1 and the DC centralized lighting device in Embodiment 2, an intelligent control system of the DC centralized lighting device is further provided in an embodiment of the present invention, including a sensor module, a communication module, and a controller. Among them, the sensor module is used to obtain the status information of the lamp group, the communication module is communicatively connected to the DC centralized lighting device, and the controller is used to execute the intelligent control method of the DC centralized lighting device described in Embodiment 2.

[0202] Among them, for the detailed content of the DC centralized lighting device and the intelligent control method, please refer to Embodiment 1 and Embodiment 2, which will not be elaborated here; the sensor module of the intelligent control system can monitor the status information of the lamp group in real time, such as brightness, power consumption, etc., and transmit this information to the controller. This enables the system to respond to environmental changes and demands in a timely manner. Through the communication module, the intelligent control system can be communicatively connected to the DC centralized lighting device remotely, so as to achieve remote control and management. This intelligent control system can realize the intelligent management and optimization of the DC centralized lighting device through functions such as real-time monitoring, remote control, energy conservation and environmental protection, personalized experience, and automatic control, improving the efficiency, comfort, and sustainability of the lighting system.

[0203] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, the detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present invention.

[0204] The functional blocks shown in the above-described structural block diagrams can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, and so on. When implemented in software, the elements of the present invention are programs or code segments for performing the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted over a transmission medium or a communication link via a data signal carried in a carrier wave. A "machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and so on. The code segment can be downloaded via a computer network such as the Internet, an intranet, and so on.

[0205] It should also be noted that in the exemplary embodiments of the present invention, some methods or systems are described based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, can be different from the order in the embodiments, or several steps can be executed simultaneously.

[0206] As described above, the above is only the specific implementation manner of the present invention. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A detection method for a DC centralized drive lighting device, characterized in that The DC centralized drive lighting device includes: a lamp group, a distribution box, and an AC power supply; Among them, the lamp group includes a number of lamps connected in parallel. The distribution box includes a dimming module, a lamp detection module, and a switch module. One end of the switch module is electrically connected to the AC power supply, and the other end is electrically connected to the input end of the dimming module. The input end of the dimming module is electrically connected to the AC power supply, and the output end of the dimming module is electrically connected to the lamp group, which is used to convert the alternating current from the AC power supply into direct current to supply power to the lamp group and control the lighting of the lamp group. The input end of the lamp detection module is connected to the lamp group and is used to obtain the working state information of each lamp; The detection method includes: Monitoring and obtaining the working state information of each lamp in the lamp group; According to the working state information of each lamp in the lamp group, detecting whether there are faulty lamps in each lamp group, where the working state information includes current data, voltage data, and power data; If there is, adjust the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located according to the fault information of the faulty lamp to obtain a second lighting control strategy; According to the second lighting control strategy, control the lamp group in the lighting space where the faulty lamp is located to perform lighting. The first lighting control strategy is obtained through the following method: Obtain the scene information and real-time environmental parameters of the lighting space where each lamp group is located, where the scene information includes scene type, current time, and population density, and the real-time environmental parameters include ambient light intensity, ambient temperature, and ambient humidity; Judge whether the ambient light intensity meets the illuminance standard corresponding to the scene type of the lighting space; If not, match in the preset lighting strategy database according to the scene type and the current time to obtain the corresponding initial lighting control strategy. The preset lighting strategy database includes multiple initial lighting control strategies, and the initial lighting control strategy includes brightness parameters, color temperature parameters, and color parameters. Different initial lighting strategies correspond to different time periods and / or scene types; Adjust the brightness parameters and color temperature parameters of the initial lighting strategy according to the population density to obtain an intermediate lighting control strategy, where the brightness parameters and the color temperature parameters are proportional to the population density; Adjust the corresponding intermediate lighting control strategy according to the real-time environmental parameters of each lighting space to obtain the first lighting control strategy.

2. The detection method according to claim 1, wherein The step of detecting whether there are faulty lamps in each lamp group according to the working state information of each lamp in the lamp group includes: Obtain the first historical state information of each lamp group when executing the first lighting control strategy; Determine the current reference value, voltage reference value, and power reference value of each lamp group according to the first historical state information; Judge whether there are faulty lamps in each lamp group according to the current reference value, the voltage reference value, and the power reference value.

3. The detection method according to claim 2, characterized in that, Adjusting the first lighting control strategy of the lighting fixture group in the lighting space where the faulty lighting fixture is located according to the fault information of the faulty lighting fixture to obtain a second lighting control strategy includes: Obtaining the current change trend, voltage change trend, and power change trend of the faulty lighting fixture according to the first historical state information of the lighting fixture group where the faulty lighting fixture is located; Analyzing the current change trend, voltage change trend, and power change trend to determine the fault mode; Obtaining fault information according to the fault mode and the position information of the lighting fixture group where the faulty lighting fixture is located; Obtaining a brightness compensation value according to the first lighting control strategy of the lighting fixture group where the faulty lighting fixture is located; Adjusting the first lighting control strategy of the lighting fixture group in the lighting space where the faulty lighting fixture is located according to the brightness compensation value to obtain the second lighting control strategy.

4. The detection method according to claim 3, characterized in that, Adjusting the first lighting control strategy of the lighting fixture group in the lighting space where the faulty lighting fixture is located according to the brightness compensation value to obtain the second lighting control strategy includes: If the lighting space where the faulty lighting fixture is located includes only one lighting fixture group, adjusting the first lighting control strategy of the lighting fixture group where the faulty lighting fixture is located according to the number of lighting fixtures in the lighting fixture group where the faulty lighting fixture is located and the brightness compensation value to obtain the second lighting control strategy.

5. The detection method according to claim 4, characterized in that Adjusting the first lighting control strategy of the lighting fixture group in the lighting space where the faulty lighting fixture is located according to the brightness compensation value to obtain the second lighting control strategy includes: If the lighting space where the faulty lighting fixture is located includes multiple lighting fixture groups, obtaining the lighting layout information of the lighting space where the faulty lighting fixture is located; Obtaining the distance between each lighting fixture group and the faulty lighting fixture according to the lighting layout information; Dividing each lighting fixture group into at least a first lighting fixture group and a second lighting fixture group according to the distance; Obtaining a brightness adjustment value for each first lighting fixture group according to the brightness compensation value, the distance between the first lighting fixture group and the faulty lighting fixture, and the number of lighting fixtures in each first lighting fixture group; Adjusting the first lighting control strategy of the corresponding first lighting fixture group according to the brightness adjustment value to obtain the second lighting control strategy.

6. The detection method according to claim 5, wherein The brightness compensation value is obtained through the following formula: In the formula, Lc is the brightness compensation value, k1 and k2 are constants used to adjust the intensity of brightness compensation, d represents the average distance between the faulty lamp and other lamps in the lighting space, Lavg is the average brightness of other lamps in the lighting space, α is the influence coefficient of ambient light intensity on brightness compensation, and Lenv is the ambient light intensity of the lighting space where the faulty lamp is located.

7. The detection method according to claim 5, characterized in that The brightness adjustment value is negatively correlated with the distance between the first lighting fixture group and the faulty lighting fixture, and the brightness adjustment value is negatively correlated with the number of lighting fixtures in the first lighting fixture group.

8. The detection method according to claim 5, wherein The distance between the first lighting fixture group and the faulty lighting fixture is less than or equal to a preset distance threshold, and the distance between the second lighting fixture group and the faulty lighting fixture is greater than the preset distance threshold, and the preset distance threshold is determined based on the lighting layout information.

9. The detection method according to any one of claims 1 to 8, characterized in that The dimming module, lighting fixture detection module, and switch module are integrated in the distribution box.

10. A detection and control system for a DC centralized drive lighting device, characterized in that, The system includes: a sensor module, a communication module, and a controller. Among them, the sensor module is used to obtain the state information of the lighting fixture group, the communication module is communicatively connected to the DC centralized drive lighting device, and the controller is used to execute the detection method according to any one of claims 1-9.

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