Illumination control method and system during working of direct-current centralized driving illumination equipment

Abstract

The invention relates to a direct-current illumination control technology, and provides an illumination control method and system during operation of direct-current centralized driving illumination equipment in order to solve the problem that in the existing direct-current illumination technology, each lamp corresponds to a control circuit board, and maintenance is inconvenient due to decentralized control in space. The method comprises the following steps: providing alternating-current electric energy to a distribution box through an alternating-current power supply; a switch module in the distribution box converts alternating current into direct current and supplies energy to the lamp sets, and each lamp set comprises a plurality of lamps which are distributed in the lighting space and connected in parallel. Controlling the illumination parameters of each lamp in the lamp group for illumination; monitoring and acquiring working state information of each lamp in the lamp group, wherein the working state information comprises a brightness parameter, a color temperature parameter and a color parameter; and the illumination parameters and the working state of the lamp are monitored and adjusted in real time. According to the invention, through the integrated direct current illumination control design in the distribution box, the maintenance and management difficulty of direct current illumination is simplified, and the cost is reduced.

Description

[0001] This invention is a divisional application of the invention patent application filed on May 20, 2024, with the invention name “An intelligent control method and system for DC centralized lighting equipment” and application number 202410622147.8. Technical Field

[0002] The present invention relates to the field of lighting control technology, and in particular to a lighting control method and system when a DC centralized driving lighting device is working. Background Art

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

[0004] Due to the use of a distributed power supply structure, maintenance and management work is relatively complicated, and each lighting point needs to be regularly inspected and maintained, especially in high-altitude installation locations, where the cost of repair and replacement is high. Due to the particularity of the installation location of lamps, such as high altitudes and suspended ceilings, maintenance and replacement of lamps require special equipment and technology, which is costly. In addition, traditional AC power supply systems have safety risks of leakage and electric shock during use, especially in high humidity and humid environments, where the risk of leakage is more prominent.

[0005] Although AC-powered lighting systems have certain convenience and cost advantages, there are many problems in maintenance and safety. More advanced lighting solutions are needed to improve maintenance efficiency and safety. Summary of the invention

[0006] In view of this, an embodiment of the present invention provides a lighting control method and system for a DC centralized driving lighting device, in order to solve the problem in the existing DC lighting technology that each lamp corresponds to a control circuit board and the control is dispersed in space and inconvenient to maintain.

[0007] In the first aspect, an embodiment of the present invention provides a lighting control method for a DC centralized driven lighting device, the method comprising: providing AC power to a distribution box through an AC power supply; a switch module in the distribution box converts AC power into DC power, and supplies power to a plurality of lamp groups, wherein each lamp group comprises a plurality of lamps distributed in the lighting space and connected in parallel; lighting is achieved by controlling the lighting parameters of each lamp in the lamp group through the distribution box; monitoring and obtaining working status information of each lamp in the lamp group, the working status information comprising brightness parameters, color temperature parameters and color parameters; and real-time monitoring and adjustment of the lighting parameters and working status of each lamp through the distribution box.

[0008] As a preferred embodiment of the present invention, 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, for converting the AC power from the AC power supply into DC power to power 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, for obtaining the working status information of each lamp.

[0009] As a preferred embodiment of the present invention, the dimming module, the lamp detection module and the switch module are integrated in the distribution box.

[0010] As a preferred embodiment of the present invention, the dimming module includes a dimming unit and a driving unit. The dimming unit is responsible for receiving status information from the lamp detection module, generating a lighting control signal based on the information, and sending it to the driving unit; the driving unit is responsible for receiving and parsing the lighting control signal sent by the dimming unit, and then adjusting the DC current output to the lamp group according to the lighting control signal.

[0011] As a preferred embodiment of the present invention, the DC centralized driven lighting device also includes: an intelligent gateway, which is communicatively connected to the input end of the dimming unit, and is used to transmit the working status information to the host computer, and transmit the first lighting control instruction issued by the host computer to the dimming unit; the dimming unit generates a lighting control signal according to the first lighting control instruction.

[0012] As a preferred embodiment of the present invention, controlling the lighting parameters of each lamp in the lamp group by the distribution box to achieve lighting includes:

[0013] Acquire scene information and real-time environmental parameters of the lighting space where each of the lamp groups is located, wherein the scene information includes scene type, current time and crowd density, and the real-time environmental parameters include ambient light intensity, ambient temperature and ambient humidity;

[0014] Determining whether the ambient light intensity meets the illumination standard corresponding to the scene type of the lighting space;

[0015] If not, matching is performed in a preset lighting strategy database according to the scene type and the current time to obtain a corresponding initial lighting control strategy, wherein the preset lighting strategy database includes a plurality of initial lighting control strategies, and the initial lighting control strategies include brightness parameters, color temperature parameters, and color parameters, and different initial lighting strategies correspond to different time periods and / or scene types;

[0016] Adjusting 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, wherein the brightness parameter and the color temperature parameter are proportional to the crowd density;

[0017] The corresponding intermediate lighting control strategy is adjusted according to the real-time environmental parameters of each lighting space to obtain a first lighting control strategy.

[0018] As a preferred embodiment of the present invention, when the scene type is a passenger waiting area, the lighting parameters of each lamp in the lamp group are controlled by the distribution box to achieve lighting, specifically including:

[0019] When the current time belongs to the preset daytime period, judging whether the actual lighting of the passenger waiting area meets the corresponding illumination standard according to the real-time environmental parameters of the passenger waiting area and the first lighting control strategy;

[0020] If the conditions are met, then according to the first lighting control strategy, each of the lamp groups is controlled to perform lighting;

[0021] When the current time belongs to the preset night time period, obtaining the ticket checking time schedule of each ticket gate, wherein the ticket checking time schedule includes a plurality of ticket checking arrangement data, and the ticket checking arrangement data includes the ticket checking start time and the ticket checking end time;

[0022] When the difference between the current time and the next ticket checking time is greater than a first preset difference, adjusting the brightness parameter of the first lighting control strategy according to the illumination standard value of the passenger waiting area;

[0023] Adjusting the color temperature parameter and the color parameter of the first lighting control strategy according to the current time and a pre-built human rhythm model, wherein the human rhythm model takes the current time as input and takes the brightness parameter, the color temperature parameter and the color parameter as output;

[0024] According to the adjusted first lighting control strategy, control the lighting group corresponding to the passenger waiting area to illuminate;

[0025] When the difference between the current time and the next ticket checking time of a ticket gate is less than the first preset difference and greater than the second preset difference, the waiting area corresponding to the ticket gate is recorded as the target waiting area, and a third lighting control strategy is obtained, wherein 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, the preset color temperature parameter, and the preset color parameter are obtained based on the preset time and the human body rhythm model;

[0026] According to the first lighting control strategy and the third lighting control strategy, a lighting adjustment rate is obtained, wherein the first preset difference is greater than the second preset difference,

[0027] Controlling the lamp group in the target ticket checking area to switch from the adjusted first lighting control strategy to the third lighting control strategy according to the light adjustment rate;

[0028] When the current time reaches the ticket checking end time, the lamp group in the target lighting area is controlled to switch to the adjusted first lighting control strategy.

[0029] As a preferred embodiment of the present invention, the light adjustment rate is calculated by the following formula:

[0030]

[0031] In the formula, Vlight is the lighting adjustment rate, γ is the rate adjustment coefficient, Atotal is the area of ​​the passenger waiting area, Atarget is the area of ​​the target waiting area, Ltarget is the target illuminance obtained based on the third lighting control strategy, Lcurrent is the actual illuminance obtained based on the adjusted first lighting control strategy, T is the second preset difference, and fage is the influencing factor of the lamp service life.

[0032] As a preferred embodiment of the present invention, the lamp service life impact factor is calculated by the following formula:

[0033]

[0034] Wherein, Nuse is the service life of the lamp group in the target waiting area, and Nset is the preset service life.

[0035] In a second aspect, the present invention provides a lighting control system for a DC centrally driven lighting device in operation, the system comprising a sensor module, a communication module and a controller, wherein the sensor module is used to obtain status information of a lamp group, the communication module is communicatively connected to the DC centrally driven lighting device, and the controller is used to execute any of the methods described in the foregoing.

[0036] In summary, the present invention has brought significant improvements and enhancements to the operation and management of lighting systems through the advantages of integrated design of DC lighting control, reduced cable usage, reduced safety risks, simplified maintenance management and reduced costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0038] Figure 1 It is a structural schematic diagram of an AC power supply lighting system in the background technology of the present invention.

[0039] Figure 2 It is a schematic diagram of the structure of a DC centralized lighting device according to an embodiment of the present invention.

[0040] Figure 3 It is a flow chart of an intelligent control method for DC centralized lighting equipment according to an embodiment of the present invention.

[0041] Figure 4 It is a flow chart of another intelligent control method for a DC centralized lighting device according to an embodiment of the present invention.

[0042] Figure 5 It is a flow chart of another intelligent control method for a DC centralized lighting device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. 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 the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0045] Example 1

[0046] See also Figure 2 , an embodiment of the present invention provides a DC centralized lighting device, the device comprising:

[0047] Lighting set;

[0048] Distribution box;

[0049] AC power supply;

[0050] Wherein, the lamp group includes a number of 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 AC power from the AC power supply into DC power to power 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 status information of each lamp.

[0051] Specifically, a lamp group refers to a group of lamps installed at a designated location 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 up 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 locations; the AC power supply is a device for providing electric energy, and the AC power supply is input into the distribution box to supply the lamp group and related equipment; the dimming module is a device located in the distribution box, which is used to adjust the current to control the lighting of the lamp. It is responsible for converting the current from the AC power supply into DC power and adjusting it as needed to achieve the adjustment of the brightness, color temperature, color and other parameters of the lamp; the lamp detection module is also located in the distribution box, which is used to monitor and obtain the status information of each lamp in the lamp group, such as power, working status, etc.

[0052] Its working principle is as follows: the AC power supply provides AC power to the distribution box. The switch module in the distribution box converts the AC power into DC power and provides it to the lamp group for power supply. The dimming module receives the AC power supply and converts it into DC power, controls the lighting parameters of the lamp group, and adjusts the output current according to the external input control signal to achieve the lighting parameters of the lamp. 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 and color parameters; system administrators can monitor and adjust the lighting parameters and working status of the lamp in real time through the control interface in the distribution box or the remote control system.

[0053] The use of a DC power supply system can reduce energy conversion losses and improve energy efficiency. The dimming module can adjust the brightness of lamps to meet lighting needs in different environments. The lamp detection module can monitor the status information of lamps in real time, facilitate timely detection and handling of faults, and improve 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 leakage and electric shock. Centralized management and monitoring make system maintenance more convenient and reduce maintenance costs and repair time.

[0054] Specifically, the dimming module, lighting detection module and switch module are integrated into the distribution box, which reduces the number of system components and connection methods, making the system structure simpler and clearer. The modules integrated inside the distribution box can be arranged more compactly, saving the space required for equipment installation. This advantage is particularly significant for places with limited space, such as high-speed rail stations and other crowded places. The integrated design reduces the number of connection points and components in the system, reduces potential failure points, and improves the reliability and stability of the system. In addition, the signal transmission between the 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, and maintenance personnel can perform maintenance in one location, saving time in finding and troubleshooting. In addition, the integrated design can also reduce the cost of system maintenance and repair.'

[0055] When maintenance is needed, maintenance personnel only need to open the distribution box to easily inspect and replace the various modules inside. This design makes maintenance work more efficient and faster, reduces maintenance time and maintenance costs, and improves the maintainability of the system.

[0056] 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 electrically connected to the lamp group, and the driving unit is used to convert AC power into DC power, and regulate the DC current output to the lamp group according to the lighting control signal.

[0057] 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 based on the 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 adjusting the DC 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 based on the status information of the lamp. These status information may include the brightness, power, current, etc. of the lamp. The dimming unit calculates the light brightness level that needs to be adjusted based on 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 adjusts the DC current output to the lamp group according to the signal. Usually, the driving unit converts the AC power into DC power suitable for the lamp group, and adjusts the output current according to the signal sent by the dimming unit, thereby controlling the lighting parameters of the lamp.

[0058] Here’s how it works:

[0059] 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 a corresponding lighting control signal based on the received information and sends it to the driving unit. After receiving the control signal, the driving unit converts the AC power into DC power and adjusts the output current according to the control signal to control the brightness of the lamp group.

[0060] Through the dimming unit and drive unit in the dimming module, the system can achieve precise lighting control and dynamically adjust the lighting parameters of the lamps according to the real-time lamp status information to meet the lighting needs in different environments; using DC power supply and precise dimming control through the dimming module can reduce energy consumption, improve energy efficiency, and achieve the purpose of energy saving. Integrating the dimming module and drive unit in the distribution box simplifies the system structure, improves the stability and reliability of the system, and is also easy to maintain and manage.

[0061] Preferably, the DC centralized lighting device also includes: an intelligent gateway, which is communicatively connected to the input end of the dimming unit and the output end of the fault detection unit, and is used to transmit the status information to the host computer, and transmit the first lighting control instruction issued by the host computer to the dimming unit; the dimming unit generates the lighting control signal according to the first lighting control instruction.

[0062] Specifically, the intelligent gateway is a key component in the system. It is responsible for connecting various modules in the system and transmitting data to the host computer (such as a server or control center). The intelligent gateway collects and transmits system status information, as well as receives and transmits control instructions issued by the host computer through communication connections with the dimming unit and the fault detection unit. Through these connections, the intelligent gateway can receive data sent by the dimming unit and the fault detection unit in real time and transmit the data to the host computer. It can also receive control instructions issued by the host computer and transmit the instructions to the dimming unit.

[0063] As the data transmission and control center of the system, the intelligent gateway realizes the collection and transmission of system status information and the reception and transmission of the first lighting control instruction issued by the host computer through communication connection with the dimming unit and the fault detection unit. The dimming unit generates a corresponding lighting control signal according to the received lighting control instruction and sends it to the lamp group to realize the lighting control of the lamp group.

[0064] The intelligent gateway realizes the connection between the system and the host computer, so that the host computer can monitor the operating status of the system in real time and send control instructions to remotely control the system, which improves the intelligence level and flexibility of the system. The introduction of the intelligent gateway makes the system structure more integrated, simplifies the construction and management of the system, and improves the maintainability and stability of the system.

[0065] Preferably, the DC centralized lighting device also includes: a manual control panel, which is communicatively connected to the host computer and the signal input end of the dimming unit, and is used to generate a second lighting control instruction in response to the system administrator's operation and transmit it to the dimming unit, and the dimming unit generates the lighting control signal according to the second lighting control instruction.

[0066] Specifically, the manual control panel is an important component of the system. It is usually installed near the lamp group or in a convenient location. 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 exchange data and transmit control instructions with other components in the system. When the system administrator operates through the manual control panel, the manual control panel will generate a second lighting control instruction and transmit the instruction to the dimming unit. The second lighting control instruction usually includes the lighting parameters that the system administrator wants to adjust, such as brightness, color temperature, etc. After receiving the second lighting control instruction transmitted from the manual control panel, the dimming unit will generate a corresponding lighting control signal 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.

[0067] The manual control panel provides an intuitive and convenient operation method for system administrators. System administrators can adjust the lighting parameters of the lamp group at any time according to their needs, which improves the experience and satisfaction of system administrators. As a backup control method, when the system fails or cannot be remotely controlled, users can still operate the lamp group through the manual control panel, ensuring the stability and reliability of the system.

[0068] Example 2

[0069] For the DC centralized lighting device based on Example 1, please refer to Figure 3 The embodiment of the present invention further provides an intelligent control method for a DC centralized lighting device, the method comprising:

[0070] S1. Acquire a corresponding first lighting control strategy according to scene information of the lighting space where each of the lamp groups is located, wherein the first lighting control strategy includes a brightness parameter, a color temperature parameter, and a color parameter;

[0071] Specifically, lighting space refers to a specific area or place that needs lighting, and scene information refers to various parameters and lighting requirements that describe the characteristics of the lighting space; in this embodiment, the lighting space may be different areas in a high-speed rail station. As a public transportation hub, the lighting space of a high-speed rail station includes various areas such as the station hall, waiting room, passage, and platform. The lighting requirements of each area may be different. For example, the station hall 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 rail station, the scene information includes the size, shape, flow of people, and usage functions of each area such as the station hall, waiting room, and passage, as well as the user's requirements for lighting brightness, color temperature, and color. For example, a waiting room may require comfortable lighting to enhance the waiting experience of passengers, while a platform requires sufficient lighting to ensure the safety of passengers.

[0072] The first lighting control strategy is the parameters and rules for controlling lamps determined based on scene information, usually including brightness parameters, color temperature parameters, and color parameters. According to the scene information of the lighting space, such as purpose and characteristics, the lighting needs are determined, the appropriate lighting scheme is designed, and the layout, type, and control method of the lamps are determined. According to the designed lighting scheme, appropriate lamps and control devices are selected, and their parameters are set to achieve the expected lighting effect.

[0073] By determining the first lighting control strategy according to specific lighting needs and scene characteristics, it can be ensured that the lighting effect provided by the lighting system meets the actual needs of users, thereby 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.

[0074] Preferably, the acquiring the corresponding first lighting control strategy according to the scene information of the lighting space where each of the lamp groups is located includes:

[0075] S11, obtaining scene information and real-time environmental parameters of the lighting space where each of the lamp groups is located, wherein the scene information includes scene type, current time and crowd density, and the real-time environmental parameters include ambient light intensity, ambient temperature and ambient humidity;

[0076] Specifically, scene type refers to the type or purpose of the lighting space, such as the passenger waiting area, platform, corridor, etc. of a high-speed railway station. These scene types determine the lighting needs of different lighting spaces and different scene types have different lighting standards. Crowd density refers to the flow and density of people in the lighting space. Crowd density will affect the lighting needs. For example, in the case of high crowd density, higher brightness may be required to ensure the safety and comfort of personnel; ambient light intensity refers to the intensity of natural light. During the day, ambient light intensity is affected by weather and time. When designing a lighting control strategy, the ambient light intensity needs to be considered, because too strong natural light may lead to excessive lighting, while too weak natural light requires increased lighting brightness;

[0077] By obtaining these scene information and real-time environmental parameters, we can better understand the actual needs of the lighting space and ensure that the adjustment of the lighting control strategy is in line with the actual situation, thereby optimizing the lighting effect and improving the comfort and safety of users in the lighting space.

[0078] S12, determining whether the ambient light intensity meets the illumination standard corresponding to the scene type of the lighting space;

[0079] Specifically, the corresponding illumination standard is determined according to the scene type of the lighting space (such as passenger waiting area, platform, corridor, etc.). These standards are usually specified by relevant lighting design specifications, industry standards or regulations. For example, the illumination standard of the passenger waiting area of ​​a high-speed railway station may require a higher brightness to ensure passenger safety and comfort. The real-time ambient light intensity is compared with the illumination 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 illumination 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.

[0080] S13. If not satisfied, matching is performed in a preset lighting strategy database according to the scene type and the current time to obtain a corresponding initial lighting control strategy, wherein the preset lighting strategy database includes a plurality of initial lighting control strategies, and the initial lighting control strategies include brightness parameters, color temperature parameters, and color parameters, and different initial lighting strategies correspond to different time periods and / or scene types;

[0081] Specifically, in this step, when the actual ambient light intensity does not meet the illumination standard corresponding to the scene type of the lighting space, the corresponding initial lighting control strategy is matched in the preset lighting strategy database according to the scene type and the current time to compensate for the illumination in the lighting space. The strategy includes brightness parameters, color temperature parameters and color parameters, which vary depending on different time periods and scene types;

[0082] 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 contains brightness parameters, color temperature parameters, and color parameters. In the database, the corresponding initial lighting control strategy is matched according to the scene type and current time of the current lighting space. For example, in a scene such as a passenger waiting area, matching is performed according to the current time period (such as morning, afternoon, and evening).

[0083] By matching and obtaining the corresponding initial lighting control strategy, the system is able to provide a strategy suitable for the current lighting needs according to the scene type and the current time period. This helps to ensure the lighting quality of the lighting space, improve the passenger experience and comfort, and meet the specific lighting needs of different scenes.

[0084] S14, adjusting 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, wherein the brightness parameter and the color temperature parameter are proportional to the crowd density;

[0085] Specifically, first, obtain the crowd density of the lighting space. The crowd flow in the lighting space can be measured in real time through sensors or other monitoring equipment, and the brightness parameters in the initial lighting strategy can be adjusted according to the crowd density. The higher the crowd density, the higher the required brightness is to ensure sufficient lighting in high-density crowds to facilitate passenger activities and ensure safety. Similarly, adjust the color temperature parameters in the initial lighting strategy according to the crowd density. Generally, the higher the crowd density, the higher the required color temperature (i.e., cool color temperature) should be to help keep passengers awake and alert, especially at night or in low-light environments. According to the actual crowd density and the brightness and color temperature parameters in the initial lighting strategy, the adjusted intermediate lighting control strategy is calculated. The brightness parameter and color temperature parameter are proportional to the crowd density.

[0086] 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.

[0087] Specifically, first, obtain the real-time environmental parameters of the lighting space through sensors or monitoring equipment. These parameters include ambient light intensity, ambient temperature and ambient humidity. Ambient light intensity will affect the actual light 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, it is necessary to increase the brightness parameter; the ambient temperature has an impact on lamp performance and passenger comfort. In the case of higher temperatures, it may be necessary to adjust the lighting control strategy to ensure the stability of the lamp operation and provide appropriate lighting effects. Ambient humidity will also affect the operation and life of the lamp. The lighting control strategy needs to be adjusted according to the humidity level to ensure that the lamp operates under appropriate conditions.

[0088] According to the real-time environmental parameters, adjust the brightness parameters, color temperature parameters and color parameters in the intermediate lighting control strategy. 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. Based on the adjusted intermediate lighting control strategy, generate the first lighting control strategy. This is the final strategy used to control the lighting system.

[0089] S2. According to the first lighting control strategy, control the corresponding lamp group to perform lighting;

[0090] 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 lamp to achieve the expected lighting effect. These instructions may be transmitted to each lamp in the lamp group through wireless or wired communication.

[0091] In one embodiment, the scene type includes a passenger waiting area, the passenger waiting area includes a plurality of waiting areas, the waiting area includes a ticket gate, one waiting area corresponds to at least one lamp group, and the illumination range of the lamp group covers the corresponding waiting area;

[0092] Specifically, in this embodiment, the scene type of the lighting space is a passenger waiting area, which can be a passenger waiting area in a high-speed railway station, an airport, or a railway station, and usually includes multiple waiting areas. The waiting area is a part of the passenger waiting area, usually surrounding one or more ticket gates. These areas provide a place for passengers to wait, rest, or wait for ticket inspection. In the waiting area, the lamps of the lighting system are usually divided into several lamp groups. The illumination range of each lamp group covers the corresponding waiting area to ensure sufficient lighting of the area;

[0093] When the scene type is a passenger waiting area, controlling the corresponding lamp group to perform lighting according to the first lighting control strategy includes:

[0094] S21. When the current time belongs to a preset daytime period, judging whether the actual illumination of the passenger waiting area meets a corresponding illumination standard according to the real-time environmental parameters of the passenger waiting area and the first lighting control strategy;

[0095] Specifically, the daytime period generally refers to the time range from sunrise to sunset, and the preset daytime period can be adjusted according to actual conditions. 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;

[0096] Since human physiological rhythms are well adjusted to a state of wakefulness and high alertness during natural daylight, the lighting system does not require complex adjustments to ensure passengers' wakefulness. Therefore, it is only necessary to determine whether the actual lighting in the passenger waiting area meets the corresponding illumination standard based on the real-time environmental parameters of the passenger waiting area and the first lighting control strategy, and calculate the actual lighting level of the passenger waiting area by combining the real-time ambient light intensity with the brightness parameter in the first lighting control strategy. The actual lighting level is the result of the combined effect of ambient light and artificial lighting. The calculated actual light level is compared with the corresponding illumination standard. The illumination standard is a pre-set standard that represents the ideal lighting level under a specific scene type in the passenger waiting area.

[0097] S22: If the conditions are met, then control each of the lamp groups to perform lighting according to the first lighting control strategy;

[0098] Specifically, if the actual illumination meets the standard, that is, the actual illumination level is equal to or higher than the illumination standard, then the actual illumination is considered to meet the standard. Then the lighting system does not need to be adjusted in a complicated manner, and can directly control the lighting groups in the passenger waiting area according to the first lighting control strategy for lighting, and 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, the lighting in the passenger waiting area during the daytime period can be ensured to meet the standard and meet the basic lighting and safety needs of passengers.

[0099] If it is not satisfied, it is necessary to adjust the first lighting control strategy according to the illumination standard to improve the actual illumination level.

[0100] S23, when the current time belongs to the preset night time period, obtaining the ticket checking time schedule of each ticket gate, wherein the ticket checking time schedule includes a plurality of ticket checking arrangement data, and the ticket checking arrangement data includes the ticket checking start time and the ticket checking end time;

[0101] Specifically, during the preset night time period, the ticket inspection time schedule of each ticket gate is obtained from the system or data source. The table usually contains relevant information of the ticket gate, including the ticket time schedule data including the following: Ticket inspection start time: refers to the time point when a certain ticket gate starts to inspect tickets. This is the time when the passenger starts to enter the ticket inspection process. Ticket inspection end time: refers to the time point when a certain ticket gate ends the ticket inspection. The ticket inspection process ends at this time point.

[0102] By obtaining the ticket checking schedule, we can understand the ticket checking schedule of each ticket gate. These data will be used for subsequent lighting control strategy adjustments to ensure that appropriate lighting is provided during the night time period to meet the needs of passengers during ticket checking and waiting, and improve the comfort and safety of the waiting area.

[0103] S24, when the difference between the current time and the next ticket checking time is greater than a first preset difference, adjusting the brightness parameter of the first lighting control strategy according to the illumination standard value of the passenger waiting area;

[0104] Specifically, first, the current time and the next ticket check time are obtained, and the difference between the current time and the next ticket check time, that is, the time interval between the two is calculated. This reflects the time remaining from now to the start of the next ticket check, and the calculated time difference is compared with the first preset difference. If the time difference is greater than the first preset difference, it means that there is still a long time before the next ticket check starts. At this time, it is only necessary to make the brightness meet the illumination standard value of the passenger waiting area specified by the industry to meet the lighting needs of passengers in the passenger waiting area.

[0105] S25, adjusting the color temperature parameter and the color parameter of the first lighting control strategy according to the current time and a pre-built human rhythm model, wherein the human rhythm model takes the current time as input and takes the brightness parameter, the color temperature parameter and the color parameter as output;

[0106] Specifically, the pre-built human rhythm model is constructed based on the human rhythm cycle variation law that describes the physiological and behavioral changes of the human body during the 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 parameters and color parameters according to the current time. These parameters are used to adjust the color tone of the lighting to match the natural rhythm of the human body, ensuring that passengers have a comfortable lighting experience in the passenger waiting area;

[0107] For example, but not limitation, in the initial time period at night (such as 19:00-21:00): the color parameters output by the human rhythm model can select warmer tones, such as the RGB value range of (255, 223, 186) to (255, 228, 181), which is close to the light color at sunset. This tone helps passengers transition from the high alert state during the day to the relaxed state at night. The color temperature parameters output by the human rhythm model can be set in a lower range, such as 3000K to 3500K. This warm light helps relax the body and mind and prepare for the rest stage at night.

[0108] Mid-night time period (e.g. 21:00-23:00): The color parameters output by the human rhythm model can continue to select warmer tones, such as the RGB value range of (255,204,153) to (255,184,128), which is close to the color of light after sunset. This tone helps maintain a relaxed state and further prepare for sleep. At the same time, the color temperature parameters 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;

[0109] Late night time period (e.g. 23:00-midnight): Color parameters output by the human rhythm model: Very soft warm tones can be selected, such as RGB values ​​ranging from (255,153,102) to (255,128,85), close to the color of moonlight or candlelight. This soft color helps passengers relax and fall asleep more easily. Color temperature parameters: The color temperature can be set between 2000K and 2500K. This low color temperature is closer to firelight or candlelight and is most helpful in promoting sleep.

[0110] According to the human rhythm model and the current time, the color temperature and color parameters of the passenger waiting area are adjusted during the night time period. This helps to provide passengers with a more comfortable lighting environment, helping them to rest and relax in the passenger waiting area during the long period before ticket inspection, and improving the waiting experience.

[0111] S26. According to the adjusted first lighting control strategy, control the lighting group corresponding to the passenger waiting area to illuminate;

[0112] Specifically, the adjusted first lighting control strategy is applied to the lamp group corresponding to the passenger waiting area for lighting;

[0113] S27, when the difference between the current time and the next ticket checking time of a ticket gate is less than the first preset difference and greater than the second preset difference, the waiting area corresponding to the ticket gate is recorded as the target waiting area, and a third lighting control strategy is obtained, wherein 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, the preset color temperature parameter and the preset color parameter are obtained based on the preset time and the human body rhythm model;

[0114] Specifically, the difference between the current time and the next ticket checking time is calculated, and it is determined whether the difference is less than the first preset difference and greater than the second preset difference. If this condition is met, the waiting area corresponding to the ticket gate is defined as the target waiting area, indicating that this area is the area where the ticket checking operation is about to be performed. At this time, the preset third lighting control strategy is obtained, and the third lighting control strategy includes preset brightness parameters, preset color temperature parameters, and preset color parameters. The preset brightness parameters, preset color temperature parameters, and preset color parameters are all obtained based on the human rhythm model and the preset time;

[0115] Among them, the preset time is usually determined based on 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 and 10 am. Therefore, this preset time is input into the human rhythm model to obtain preset brightness parameters, preset color temperature parameters and preset color parameters. The preset brightness parameters obtained by the human rhythm model are between 500 and 1000 lux. This high brightness level simulates daylight and helps passengers stay awake and focused; the preset color temperature parameters are close to the daylight color temperature, that is, 5000K to 6500K. The color temperature in this range helps to improve the alertness of passengers; the preset color parameters are close to white light or cold white light, such as the RGB value range of (255,255,255) or (230,230,230). This white light color helps to provide a clear lighting environment and keep passengers awake.

[0116] By inputting the preset time into the human rhythm model, the corresponding preset brightness parameters, preset color temperature parameters and preset color parameters can be calculated. These parameters are used to adjust the lighting during ticket inspection to ensure that the lighting effect of the waiting area matches the passenger's biological clock and circadian rhythm, improving the passenger's wakefulness and comfort.

[0117] S28. Obtain a lighting adjustment rate according to the first lighting control strategy and the third lighting control strategy, wherein the first preset difference is greater than the second preset difference, and the lighting adjustment rate is calculated by the following formula:

[0118]

[0119] Where V light is the illumination 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 illumination 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, and f age is the influencing factor of lamp service life;

[0120] The lamp service life impact factor is calculated by the following formula:

[0121]

[0122] Where N use N is the service life of the lamp group in the target waiting area, set The preset useful life;

[0123] Specifically, this step obtains the illumination adjustment rate according to the first illumination control strategy and the third illumination control strategy;

[0124] In the formula, γ is an adjustment coefficient used to control the amplitude of the adjustment rate. Its value can be adjusted according to actual needs. 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. The coefficient can also be adjusted according to passenger feedback and experience to provide the best lighting environment and improve passenger comfort and satisfaction.

[0125] By introducing this factor, the rate at which the lighting system is adjusted can be better controlled to match the ratio between the target waiting area and the total area of ​​the passenger waiting area. This helps optimize the performance of the lighting system, ensuring that the system provides the right lighting level in different areas and conditions.

[0126] The lighting adjustment rate is inversely proportional to the ratio of the total area of ​​the passenger waiting area to the target ticket inspection area. The smaller the area of ​​the target ticket inspection area, the higher the adjustment rate. A smaller target waiting area requires a smaller lighting range to be adjusted and can be adjusted faster. Therefore, the adjustment rate can be higher 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 in a longer time to ensure uniform lighting effects and avoid over-lighting.

[0127] It is the difference between the target illuminance and the actual illuminance divided by the second preset time difference, which indicates 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 period of time before the start of ticket inspection. This is to provide enough time for lighting adjustment before the start of ticket inspection to achieve 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.

[0128] f age Indicates the effect of lamp aging on the adjustment rate. If the lamp age is less than or equal to the preset age limit, then f age =1, if the service life of the lamp is greater than the preset service life, then f age =N set / N use,This setting makes it so that when the age of the lamp is less than the preset age limit, the aging degree has no effect on the adjustment rate and the default rate is maintained; when the age is greater than the preset age limit, the adjustment rate will be inversely proportional to the age of the lamp. This means that as the age of the lamp increases, the adjustment rate will slow down to ensure the stability of the system and avoid the additional burden of too fast adjustment on the aging lamp. Through this adjustment, the system can better balance the rate of lighting adjustment and the age of the lamp, improve the stability and reliability of the system, and maintain the lighting quality and efficiency.

[0129] By calculating the light 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 people 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. It ensures that the adjustment rate accurately matches the current lighting needs, and can achieve a smooth transition of lighting levels within the preset time, avoiding too fast or too slow adjustments, ensuring the stability and continuity of the lighting environment, and ensuring the alertness and safety of passengers during ticket inspection while making rapid adjustments, improving the comfort of the waiting area and the overall passenger experience.

[0130] S29, controlling the lamp group in the target ticket checking area to switch from the adjusted first lighting control strategy to the third lighting control strategy according to the light adjustment rate;

[0131] Specifically, the lighting level of the target ticket inspection area is gradually adjusted according to the light adjustment rate. By controlling the lamp group, the lighting intensity is gradually increased to achieve the target illumination, color temperature and color in the third lighting control strategy. By controlling the adjustment speed of the lamp group, the lighting adjustment process is ensured to proceed smoothly, avoiding too fast or too slow adjustments that affect passenger experience and ticket inspection efficiency. Finally, the lamp group in the target ticket inspection area will be illuminated according to the third lighting control strategy. This includes the set target illumination, color temperature and color parameters to ensure the comfort and alertness of passengers during ticket inspection.

[0132] S210: When the current time reaches the ticket checking end time, control the lamp group in the target lighting area to switch to the adjusted first lighting control strategy.

[0133] When the current time reaches the ticket checking end time, it means that the ticket checking process in the target waiting area has been completed, and the passengers have boarded or left through the ticket gate. After the preset end time, the lighting group controlling the target waiting area switches from the third lighting control strategy back to the adjusted first lighting control strategy.

[0134] S3. judging whether there is a faulty lamp in each lamp group according to the status information of each lamp group, wherein the status information includes current data, voltage data and power data;

[0135] Specifically, in this step, the system will obtain the status information of each lamp group, including current data, voltage data, and power data. These data are collected by the lamp detection module and transmitted to the system for processing. The system will analyze the collected status information to determine whether there are faulty lamps in each lamp group. Common faults may include abnormal lamp brightness, lamp flickering, and lamp failure to work properly. Once the system detects that a lamp group has a fault, it will identify and record the location information and fault type of the faulty lamp.

[0136] Preferably, judging whether there is a faulty lamp in each lamp group according to the status information of each lamp group comprises:

[0137] S31, obtaining first historical status information of each of the lamp groups when executing the first lighting control strategy;

[0138] Specifically, in this step, the system will collect and record the historical status information of each lamp group when executing the first lighting control strategy. This information may include data such as current, voltage, power, and any other relevant operating parameters of each lamp group. The collection of this data may be achieved through a lamp control system or sensor. The first historical status information of each lamp group when executing the first lighting control strategy is obtained in order to monitor and evaluate the situation of the lighting system when executing the current first lighting control strategy. This historical status information provides a benchmark reference when the system is running, which helps the system identify whether there is a lamp failure or abnormality;

[0139] S32, determining a current reference value, a voltage reference value, and a power reference value of each lamp group according to the first historical state information;

[0140] Specifically, the system will analyze the recorded first historical status information to determine the baseline values ​​of current, voltage and power for each lamp group. These baseline values ​​can reflect the typical state of the lamp group when it is operating normally. The system will calculate the average value, standard deviation or other statistical indicators of each parameter and use them to determine the baseline value.

[0141] Since the first historical state information is the data when the first lighting control strategy is executed, by analyzing the first historical state information, the typical state range of the lamp group under normal working conditions can be determined. This includes typical values ​​of parameters such as current, voltage and power and their range of variation. Determining these benchmark values ​​helps to identify the normal working state of the system and provide a reference for subsequent monitoring. Once the benchmark values ​​of the normal working range are established, the system can compare the current state with these benchmark values. Any deviation from the benchmark range may indicate an abnormality or failure in the system. Therefore, abnormality detection based on the benchmark value 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 state information, the performance changes of the system can be tracked. This helps to identify potential problem trends and take preventive maintenance measures in time to prevent failures. In addition, maintenance plans based on historical data can improve maintenance efficiency, reduce system downtime, and save maintenance costs.

[0142] S33. Determine whether there is a faulty lamp in each of the lamp groups according to the current reference value, the voltage reference value and the power reference value.

[0143] Specifically, the system will use the determined current, voltage and power reference values ​​to check the current status of each lamp group. If the actual parameters of a lamp group deviate significantly from the reference values, the system will determine that there is a faulty lamp in the lamp group. The deviation may be manifested as abnormally high or abnormally low current, voltage or power, or other abnormal patterns. The system will identify and report possible fault conditions based on these deviations.

[0144] S4. If yes, alarm is issued according to the fault information of the faulty lamp and the first lighting control strategy of the lamp group in the lighting space where the faulty lamp is located is adjusted to obtain a second lighting control strategy;

[0145] Specifically, after detecting a faulty lamp in step S3, the system will confirm the existence of the fault and record specific information about the fault, including but not limited to the location of the faulty lamp and the type of fault, etc. Once the fault is confirmed, the system will trigger an alarm mechanism and send an alarm message to relevant personnel so that timely action can be taken to repair the fault. The alarm can be made in the form of sound, light, text message, email, etc.

[0146] While giving an alarm, the system will automatically adjust the first lighting control strategy according to the fault information of the faulty lamp to minimize the impact of the fault on the overall lighting effect. The adjustment may include reducing the brightness of surrounding lamps, adjusting the color temperature or color of lamps, 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 lamp is repaired.

[0147] Through step S4, the system can take measures immediately after detecting the faulty lamp, 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 loss caused by the fault, and improve the reliability of the system and user satisfaction.

[0148] Preferably, if present, giving an alarm according to the fault information of the faulty lamp and adjusting the first lighting control strategy of the lighting space where the faulty lamp is located to obtain the second lighting control strategy includes:

[0149] S41, acquiring a current change trend, a voltage change trend, and a power change trend of the faulty lamp according to the first historical state information of the lamp group where the faulty lamp is located;

[0150] Specifically, the purpose of obtaining the status information of the faulty lamp is to understand the changes in the current, voltage and power of the faulty lamp over a period of time. This can be achieved by analyzing the first historical status information of the lamp group to which the faulty lamp belongs. First, the system collects and records the current, voltage and power data of the lamp group to which the faulty lamp belongs during the execution of the first lighting control strategy, and then obtains the current change trend, voltage change trend and power change trend of the faulty lamp by processing and analyzing these data.

[0151] S42, analyzing the current change trend, the voltage change trend, and the power change trend to determine the fault mode;

[0152] Specifically, based on the changing trends of current, voltage and power, the system performs trend analysis to determine possible fault modes. For example, if the current of a faulty lamp gradually increases, while the voltage and power do not change significantly, it may indicate a current overload problem inside the lamp. Similarly, other changing trends may also indicate different types of fault modes, such as voltage fluctuations, power drops, etc.

[0153] S43, acquiring fault information according to the position information of the lamp group where the faulty lamp in the fault mode is located;

[0154] Specifically, according to the determined fault mode and the location information of the lamp group where the faulty lamp is located, the system obtains detailed information about the fault. This may include the location of the faulty lamp, lamp model, fault type, fault time and other information for further processing and alarm;

[0155] In one embodiment, each lamp has a unique identifier or code, which can be used to determine the location of the lamp. By recording the code of each lamp and its corresponding location information in the system, the location of the lamp group where the faulty lamp is located can be quickly located; in addition to the code of a single lamp, the lamp group can also be coded and the location information of each lamp group can be recorded. This allows the lamp group where the faulty lamp is located to be determined more quickly. The system may include a structural diagram or layout diagram of the building, in which the location of each lamp group is marked. By matching the location of the faulty lamp, the location of the faulty lamp can be accurately marked in the structural diagram.

[0156] S44, issuing an alarm according to the fault information;

[0157] Specifically, the system will process the alarm according to the acquired fault information. The alarm can be carried out by sound, light signal, text prompt, etc., so as to promptly notify relevant personnel to process and repair;

[0158] S45, obtaining a brightness compensation value according to a first lighting control strategy of the lamp group where the faulty lamp is located;

[0159] Specifically, according to the first lighting control strategy of the lighting fixture group where the faulty lighting fixture is located, the system obtains the corresponding brightness compensation value. The brightness compensation value is usually determined based on the brightness of other normally working lighting fixtures around the faulty lighting fixture and the lighting demand to maintain the uniformity and stability of the overall lighting;

[0160] In one embodiment, the brightness compensation value is obtained by the following formula:

[0161]

[0162] 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;

[0163] 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 needs. 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 missing light of 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 ambient light intensity. These two factors take into account the ambient light conditions of the lighting space and adjust the brightness compensation. When the ambient light is strong, it may be necessary to reduce the brightness compensation of the faulty lamp; when the ambient light is dark, it may be necessary to increase the brightness compensation to ensure that the overall brightness of the lighting space meets the requirements.

[0164] 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.

[0165] According to the brightness compensation value obtained, the system adjusts the first lighting control strategy of the lighting group of the lighting space where the faulty lamp is located, thereby obtaining the second lighting control strategy. The purpose of this is to compensate for the insufficient lighting caused by the faulty lamp by adjusting the lighting parameters of the surrounding lamps when a lamp failure occurs, ensuring that the overall lighting effect still meets the requirements.

[0166] Preferably, adjusting the first lighting control strategy of the lighting fixture group of the lighting space where the faulty lighting fixture is located according to the brightness compensation value to obtain the second lighting control strategy includes:

[0167] S461, if the lighting space where the faulty lamp is located includes only one lamp group, according to the number of lamps in the lamp group where the faulty lamp is located and the brightness compensation value, adjust the first lighting control strategy of the lamp group where the faulty lamp is located to obtain a second lighting control strategy;

[0168] Specifically, when the lighting space where the faulty lamp is located contains only one group of lamps, it is necessary to adjust the lighting control strategy of this group of lamps to compensate for the insufficient lighting caused by the faulty lamp. This adjustment is based on the number of lamps and the brightness compensation value calculated previously. The average compensation value of each lamp is calculated according to the total brightness compensation value and the number of lamps. Based on 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 uniformity of the lighting of the entire lighting space. According to the adjusted lighting parameters, a second lighting control strategy can be generated. This strategy can include specific lighting parameter settings for each lamp to ensure that the lighting effect of the entire lighting space is still good when the lamp fails.

[0169] S462: If the lighting space where the faulty lamp is located includes multiple lamp groups, obtain lamp layout information of the lighting space where the faulty lamp is located;

[0170] 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.

[0171] S463, acquiring the distance between each lamp group and the faulty lamp according to the lamp layout information;

[0172] Specifically, according to the lamp layout information, the position of each lamp group can be determined, and the position of the faulty lamp can be obtained through the lamp detection module or other monitoring equipment. For each lamp group and the faulty lamp, the distance between them can be calculated, such as using the Euclidean distance formula or other distance measurement methods;

[0173] S464. Divide each of the lamp groups into at least a first lamp group and a second lamp group according to the distance, wherein 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;

[0174] According to the distance information obtained, each lamp group is divided into at least two groups: the first lamp group and the second lamp group. The purpose of this division is to distinguish the priority of the lamp group according to the distance between the lamp group and the faulty lamp, so as to facilitate the subsequent adjustment of the lighting control strategy. The preset distance threshold is determined according to the lamp layout information and is usually set by the system designer according to the actual situation. It indicates the distance from the faulty lamp to the lamp group considered as the first lamp group, and those beyond this range are classified as the second lamp group. The lamp group whose distance to the faulty lamp is less than or equal to the preset distance threshold is classified as the first lamp group, and the lamp group whose distance is greater than the preset distance threshold is classified as the second lamp group. Dividing the lamp group into two priorities according to the distance to the faulty lamp can provide a basis for the subsequent lighting control. Such division can more effectively adjust the lighting control strategy, ensure the reasonable distribution of light in the event of a fault, and improve the overall lighting effect and safety.

[0175] S465, acquiring a brightness adjustment value for each of the first lamp groups according to the brightness compensation value, the distance between the first lamp group and the faulty lamp, and the number of lamps in each of the first lamp groups, wherein 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;

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] After determining the lighting control strategy adjustments made for the faulty lamp in step S4, the system will apply these adjustments, namely the second lighting control strategy, to ensure that the lighting effect of the entire lighting space is optimal. According to the second lighting control strategy, the system will send corresponding control signals to the lamp group where the faulty lamp is located, instructing it how to illuminate. These control signals may include adjusting the brightness, color temperature, color and other parameters of the lamp to adapt to the new lighting requirements. Throughout the process, the system will continue to monitor the operation of the lighting system and take measures when necessary to maintain the stability and reliability of the system. At the same time, the system may continue to provide maintenance personnel with information about the operating status of the lighting system so that they can take maintenance measures in a timely manner.

[0183] Through step S5, the system can perform effective lighting control on the lamp group where the faulty lamp is located according to actual conditions, so as to ensure that the lighting system can still operate normally when a fault occurs and provide a good lighting effect.

[0184] Preferably, after controlling the lighting fixture group in the lighting space where the faulty lighting fixture is located to perform lighting according to the second lighting control strategy, the method further comprises:

[0185] S6. In response to the occurrence of an emergency event, obtaining spatial layout information and lamp layout information of the corresponding lighting space;

[0186] Specifically, when an emergency occurs, the spatial layout information and lighting fixture layout information of the corresponding lighting space must be obtained first. This information includes spatial layout information such as the size, shape, and exit location of the lighting space, and lighting fixture layout information such as the location, quantity, and type of the lighting fixtures. This information can be obtained through on-site surveys, architectural drawings, or a lighting system database.

[0187] S7. Determine the evacuation path according to the spatial layout information;

[0188] Specifically, the evacuation path in the lighting space is determined based on the spatial layout information. The evacuation path refers to the escape route that people should take in an emergency situation. It should usually be the shortest and safest path, including roads, stairs, corridors, etc. leading to the exit.

[0189] S8. Determine, according to the lamp layout information and the evacuation path, a lamp group in the lighting space for indicating the evacuation path, recorded as an evacuation lamp group;

[0190] Specifically, according to the preset evacuation lighting control strategy, the evacuation lamp group is controlled to illuminate. The preset evacuation lighting control strategy includes preset evacuation brightness parameters, preset evacuation color parameters, and lamp flashing frequency. The settings of these parameters should be able to provide sufficient lighting in an emergency situation, and at the same time attract people's attention and guide them along the evacuation path.

[0191] S9, according to the preset evacuation lighting control strategy, control the evacuation lamp group to perform lighting, wherein the preset evacuation lighting control strategy includes: preset evacuation brightness parameters, preset evacuation color parameters and lamp flashing frequency;

[0192] Specifically, according to the preset evacuation lighting control strategy, the evacuation lamp group is controlled to illuminate. The preset evacuation lighting control strategy includes preset evacuation brightness parameters, preset evacuation color parameters, and lamp flashing frequency. The settings of these parameters should be able to provide sufficient lighting in an emergency situation, and at the same time attract people's attention and guide them along the evacuation path.

[0193] S10. According to a preset emergency lighting control strategy, control the lighting of the lamp group other than the evacuation lamp group in the lighting space corresponding to the emergency event, wherein the preset emergency lighting control strategy includes: a preset emergency brightness parameter and a preset emergency color parameter, wherein the preset emergency brightness parameter is a rated brightness parameter of the lamp 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).

[0194] Specifically, the preset emergency brightness parameter refers to the brightness setting of the lamp group required in an emergency situation. Usually, emergency lighting needs to be brighter than usual 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 of the rated brightness parameter of the lamp group to provide sufficient lighting.

[0195] Preset emergency color parameters This refers to the color setting of the lamp group required in emergency situations. In order to distinguish it from the usual lighting, the preset emergency color parameters generally select a special color, such as yellow or orange. In this scheme, the RGB value range of the preset emergency color parameters is between (255,255,0) and (255,215,0), which means that the color will change from yellow to orange. This color selection helps to attract people's attention and remind them that they are currently in an emergency state.

[0196] The preset evacuation brightness parameter refers to the brightness setting of the luminaire group used to indicate the evacuation path. The brightness of the evacuation luminaire group should be higher than that of other luminaire groups to emphasize the escape path and guide people towards the safe exit. The preset evacuation color parameter refers to the color setting of the luminaire group used to indicate the evacuation path. Unlike the colors of other luminaire groups, the color of the evacuation luminaire group is usually selected to be different from the emergency color so that people can clearly identify the evacuation path. In this scheme, the RGB value range of the preset evacuation color parameter is between (0,200,0) and (255,255,0), which means that the color will vary from green to yellow. This color selection helps to highlight the evacuation path and guide people to evacuate safely.

[0197] Example 3

[0198] Based on the DC centralized lighting device of Example 1 and the intelligent control method of the DC centralized lighting device of Example 2, an embodiment of the present invention also provides an intelligent control system for DC centralized lighting device, including a sensor module, a communication module and a controller, wherein the sensor module is used to obtain status information of a 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 of Example 2.

[0199] Among them, please refer to Example 1 and Example 2 for the details of the DC centralized lighting equipment and the intelligent control method, which will not be repeated 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 needs in a timely manner. Through the communication module, the intelligent control system can establish a remote communication connection with the DC centralized lighting equipment to achieve remote control and management. This intelligent control system can realize intelligent management and optimization of DC centralized lighting equipment through functions such as real-time monitoring, remote control, energy saving and environmental protection, personalized experience and automatic control, thereby improving the efficiency, comfort and sustainability of the lighting system.

[0200] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method 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, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0201] The functional blocks shown in the above-described block diagram 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 function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0202] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems 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 performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0203] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A lighting control method for a DC centralized driving lighting device, characterized in that: The method comprises: Providing AC power to a distribution box via an AC power source; The switch module in the distribution box converts AC power into DC power and supplies power to a plurality of lamp groups, wherein each lamp group includes a plurality of lamps connected in parallel and distributed in the lighting space; Lighting is achieved by controlling the lighting parameters of each lamp in the lamp group through the distribution box; Monitor and obtain working status information of each lamp in the lamp group, wherein the working status information includes brightness parameters, color temperature parameters and color parameters; The lighting parameters and working status of each lamp are monitored and adjusted in real time through the distribution box.

2. The lighting control method according to claim 1, characterized in that: 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, for converting the AC power from the AC power supply into DC power to power the lamp group, and performing 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 working status information of each lamp.

3. The lighting control method according to claim 2, characterized in that: The dimming module, the lamp detection module and the switch module are integrated in the distribution box.

4. The lighting control method according to claim 3, characterized in that: The dimming module includes a dimming unit and a driving unit. The dimming unit is responsible for receiving status information from the lamp detection module, generating a lighting control signal based on the information, and sending it to the driving unit; the driving unit is responsible for receiving and parsing the lighting control signal sent by the dimming unit, and then adjusting the DC current output to the lamp group according to the lighting control signal.

5. The lighting control method according to claim 4, characterized in that: The DC centralized driven lighting device also includes: an intelligent gateway, which is communicatively connected to the input end of the dimming unit, and is used to transmit the working status information to the host computer, and transmit the first lighting control instruction issued by the host computer to the dimming unit; the dimming unit generates a lighting control signal according to the first lighting control instruction.

6. The lighting control method according to any one of claims 1 to 5, characterized in that: The method of controlling the lighting parameters of each lamp in the lamp group by the distribution box to realize lighting includes: Acquire scene information and real-time environmental parameters of the lighting space where each of the lamp groups is located, wherein the scene information includes scene type, current time and crowd density, and the real-time environmental parameters include ambient light intensity, ambient temperature and ambient humidity; Determining whether the ambient light intensity meets the illumination standard corresponding to the scene type of the lighting space; If not, matching is performed in a preset lighting strategy database according to the scene type and the current time to obtain a corresponding initial lighting control strategy, wherein the preset lighting strategy database includes a plurality of initial lighting control strategies, and the initial lighting control strategies include brightness parameters, color temperature parameters, and color parameters, and different initial lighting strategies correspond to different time periods and / or scene types; Adjusting 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, wherein the brightness parameter and the color temperature parameter are proportional to the crowd density; The corresponding intermediate lighting control strategy is adjusted according to the real-time environmental parameters of each lighting space to obtain a first lighting control strategy.

7. The lighting control method according to claim 6, characterized in that: When the scene type is a passenger waiting area, the lighting parameters of each lamp in the lamp group are controlled by the distribution box to achieve lighting, specifically including: When the current time belongs to the preset daytime period, judging whether the actual lighting of the passenger waiting area meets the corresponding illumination standard according to the real-time environmental parameters of the passenger waiting area and the first lighting control strategy; If the conditions are met, then according to the first lighting control strategy, each of the lamp groups is controlled to perform lighting; When the current time belongs to the preset night time period, obtaining the ticket checking time schedule of each ticket gate, wherein the ticket checking time schedule includes a plurality of ticket checking arrangement data, and the ticket checking arrangement data includes the ticket checking start time and the ticket checking end time; When the difference between the current time and the next ticket checking time is greater than a first preset difference, adjusting the brightness parameter of the first lighting control strategy according to the illumination standard value of the passenger waiting area; Adjusting the color temperature parameter and the color parameter of the first lighting control strategy according to the current time and a pre-built human rhythm model, wherein the human rhythm model takes the current time as input and takes the brightness parameter, the color temperature parameter and the color parameter as output; According to the adjusted first lighting control strategy, control the lighting group corresponding to the passenger waiting area to illuminate; When the difference between the current time and the next ticket checking time of a ticket gate is less than a first preset difference and greater than a second preset difference, the waiting area corresponding to the ticket gate is recorded as a target waiting area, and a third lighting control strategy is obtained, wherein 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, the preset color temperature parameter, and the preset color parameter are obtained based on a preset time and the human body rhythm model; According to the first lighting control strategy and the third lighting control strategy, a lighting adjustment rate is obtained, wherein the first preset difference is greater than the second preset difference, Controlling the lamp group in the target ticket checking area to switch from the adjusted first lighting control strategy to the third lighting control strategy according to the light adjustment rate; When the current time reaches the ticket checking end time, the lamp group in the target lighting area is controlled to switch to the adjusted first lighting control strategy.

8. The lighting control method according to claim 7, characterized in that: The light regulation rate is calculated by the following formula: Where V light is the illumination 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 illumination 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, and f age It is the influencing factor of the lamp service life.

9. The lighting control method according to claim 8, characterized in that: The lamp service life impact factor is calculated by the following formula: Where N use N is the service life of the lamp group in the target waiting area, set The preset service life.

10. A lighting control system for a DC centralized driving lighting device, characterized in that: The system includes a sensor module, a communication module and a controller, wherein the sensor module is used to obtain status information of the lamp group, the communication module is communicatively connected with the DC centralized drive lighting device, and the controller is used to execute the method described in any one of claims 1-9.

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