Intelligent illumination control system for rail transit LED

Abstract

The invention discloses an intelligent illumination control system for a rail transit LED, and relates to the technical field of rail transit illumination, and the system comprises a distribution module, an analysis module and a compensation module. And the distribution module is used for arranging a plurality of LED lamps through a multi-row linear arrangement method. According to the invention, the current, inductance and temperature data of each LED lamp are collected through the microcontroller, the light attenuation speed of each LED lamp is predicted based on the data, different measures are provided according to the predicted light attenuation speed of the LED lamp, when the light attenuation speed of the LED lamp is a primary level, the LED lamp is ignored, and when the light attenuation speed of the LED lamp is a middle level, the LED lamp enters the compensation module, and the LED lamp enters the compensation module. When the light decay speed of the LED lamp is high-grade, maintenance personnel are timely notified to carry out maintenance through telephones, short messages or mails, potential problems of the LED lamp are timely found and solved through grading processing of the light decay speed, and the stability of the whole lighting system can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit lighting, and in particular to an intelligent lighting control system for rail transit LEDs. Background Art

[0002] With the acceleration of urbanization, rail transit, as an efficient and environmentally friendly public transportation mode, has become increasingly important in the urban transportation system. The lighting of the rail transit system is not only the basis for ensuring the safety of passengers and providing a comfortable environment, but the rail transit environment is also special and has put forward strict requirements on the lighting system. Stations and trains are densely populated, and different areas such as platforms, waiting areas, and carriage aisles have different requirements for light intensity and uniformity. Due to the uninterrupted operation of rail transit, the lighting system must have high reliability and stability to ensure that it can work normally at any time.

[0003] In the prior art, for example, Chinese patent CN118201172B discloses a rail transit LED lighting optimization layout system, the system includes: a light flow path module based on real-time monitoring of passenger density in the car, identifies congested areas based on crowd density, and divides lighting nodes, the connection data between nodes is used to determine the light flow path and intensity through real-time passenger flow simulation, and the light distribution of the entire car is optimized through the interaction data between nodes to generate a light flow analysis diagram. In the present invention, by real-time monitoring of passenger density and corresponding adjustment of lighting nodes, an effective means is provided for dynamic lighting adjustment to adapt to actual needs in the car, not only improving lighting adaptability and ensuring that high-demand areas obtain sufficient light, but also reducing lighting intensity in areas with less traffic, optimizing energy utilization and significantly reducing energy consumption, fine light intensity and switch state adjustment, monitoring energy consumption changes, improving energy efficiency, and enhancing passengers' visual comfort and sense of security.

[0004] In the above patent, by real-time monitoring of passenger density and corresponding adjustment of lighting nodes, an effective means is provided for dynamic lighting adjustment to adapt to actual needs in the car, which not only improves lighting adaptability, but also lacks effective monitoring and prediction means for the light decay phenomenon of LED lamps during use. As a result, when the light decay of LED lamps is serious, it cannot be discovered and handled in time, resulting in insufficient lighting in local areas and a safety hazard.

[0005] Therefore, an intelligent lighting control system for rail transit LED is proposed to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide an intelligent lighting control system for rail transit LEDs to solve the problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an intelligent lighting control system for rail transit LED, the system comprising a distribution module, an analysis module and a compensation module;

[0008] The distribution module is used to arrange multiple LED lamps in a multi-row linear arrangement method, and monitor the current, inductance and temperature data of each LED lamp in real time through sensors;

[0009] The analysis module receives the current, inductance and temperature data of each LED lamp monitored in real time, predicts and calculates the light decay speed of each LED lamp, and classifies the predicted data into primary, intermediate and advanced levels, so as to intuitively reflect the actual light decay speed of each LED lamp;

[0010] The compensation module calculates the luminous flux of an LED lamp with a predicted medium light decay rate based on the current, inductance and temperature data of each LED lamp monitored in real time, and adjusts the brightness and light distribution of the LED lamps adjacent to the LED lamp to compensate for the total luminous flux required by the rail transit platform, thereby ensuring the total luminous flux required by the rail transit platform.

[0011] Further, the distribution module includes an LED unit, a control unit and a detection unit;

[0012] The LED unit includes a distribution unit, and the distribution unit distributes the LED lights in a multi-row linear arrangement, wherein the row spacing of each row is 2 meters, and the distance between each row of LED lights is 1.5 meters;

[0013] The control unit is a microcontroller;

[0014] The detection unit includes a voltage unit, a current unit and a temperature unit;

[0015] The voltage unit is a voltage sensor used to monitor the voltage data of the LED lamp in real time. The current unit is a current sensor used to monitor the current data of the LED lamp in real time. The temperature unit is a temperature sensor used to monitor the temperature data of the LED in real time.

[0016] Furthermore, the analysis module includes a receiving unit, an analyzing unit and an early warning unit;

[0017] The receiving unit receives and stores the real-time current, temperature and voltage data of each LED lamp through the microcontroller.

[0018] Furthermore, the analysis unit includes a light attenuation detection unit and a classification unit.

[0019] Further, the light attenuation detection unit calculates the light attenuation speed of each LED lamp based on the real-time current, temperature, and voltage data of each LED lamp monitored in real time, and the calculation formula is:

[0020] y = β0 + β1x1 + β2x2 + … + β n x n + θ;

[0021] Wherein, y is the dependent variable and represents the light attenuation speed of the LED lamp, x (or x1, x2, … and x n ) are independent variables and represent the working current, voltage, and temperature parameters of the LED lamp, β0 represents the value of the dependent variable y when the independent variable is 0, β1, β2, … and β n represent the influence degree of the independent variable on the dependent variable, and θ represents the error term.

[0022] Further, the grading unit grades the calculated light attenuation speed of the LED lamp into primary, intermediate, and advanced levels, where primary represents 0% < y ≥ 8%, intermediate represents 9% ≤ y ≥ 20%, and advanced represents y ≥ 21%.

[0023] Further, the warning unit monitors the calculated light attenuation speed of the LED lamp through a microcontroller. When the light attenuation speed of the LED lamp is primary, it is ignored. When the light attenuation speed of the LED lamp is intermediate, it is marked and enters the compensation module. When the light attenuation speed of the LED lamp is advanced, the maintenance personnel are notified in time by phone, text message, or email for maintenance.

[0024] Further, the compensation module includes a calculation unit and a lighting compensation unit.

[0025] Further, the calculation unit calculates the luminous flux of the LED lamp with intermediate light attenuation speed based on the current, inductance, and temperature data of the LED lamp, and the calculation formula is:

[0026] Φ = [n0 × (1 - k × (T - T0))] × U × I;

[0027] Wherein, Φ represents the luminous flux, n0 represents the luminous efficacy at the reference temperature T0, k represents the temperature coefficient, T represents the working temperature of the current LED lamp, T0 represents the reference temperature, U represents the working voltage of the current LED lamp, and I represents the working current of the working voltage of the current LED lamp.

[0028] Further, the lighting compensation unit calculates the required compensated luminous flux of each adjacent LED lamp by using the luminous flux superposition formula, and the calculation formula is:

[0029]

[0030] Among them, Φr represents the required compensation amount, Φ q The total luminous flux required for the area, Φ represents the luminous flux of the LED lamp with medium attenuation speed, Φ e represents the initial luminous flux of the adjacent LED lamp, i=1,…, n represents the number of adjacent lamps.

[0031] The present invention has the following beneficial effects:

[0032] 1. In the present invention, the current, inductance and temperature data of each LED lamp are collected by a microcontroller, and the light decay speed of each LED lamp is predicted based on the data. Different measures are taken according to the predicted light decay speed of the LED lamp. When the light decay speed of the LED lamp is primary, it is ignored. When the light decay speed of the LED lamp is intermediate, it enters the compensation module. When the light decay speed of the LED lamp is advanced, the maintenance personnel are notified in time by phone, text message or email to perform maintenance. By grading the light decay speed, potential problems of LED lamps can be discovered and solved in time, which can improve the stability of the entire lighting system.

[0033] 2. In the present invention, when the light decay speed of a certain LED lamp is monitored to reach the intermediate level, the compensation module will be entered, and its actual luminous flux will be calculated through the current, inductance and temperature data of the LED lamp, and the luminous flux required to be compensated for each adjacent LED lamp will be calculated according to the luminous flux superposition formula, and the compensation amount will be reasonably distributed to the adjacent LED lamps to avoid over-compensation or under-compensation. In this way, when some LED lamps have intermediate light decay, the lighting uniformity and overall brightness of the rail transit platform can be effectively maintained, ensuring that passengers can clearly see the train information, signs, etc., and ensuring the safety and comfort of passengers' travel experience.

[0034] 3. In the present invention, by distributing the LED lights in a multi-line straight line arrangement, it can be ensured that the light is evenly projected in the coverage area of ​​the rail transit platform to avoid obvious bright and dark areas. At the same time, the working status data of each LED lamp is monitored by independent current sensors, temperature sensors and voltage sensors on each LED lamp, and the position of the faulty LED lamp can be quickly located. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a flow chart of an intelligent lighting control system for rail transit LEDs according to the present invention;

[0036] Figure 2 This is a distributed module flow chart of an intelligent lighting control system for rail transit LEDs according to the present invention;

[0037] Figure 3 This is a flow chart of an analysis unit of an intelligent lighting control system for rail transit LEDs according to the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Implementation

[0040] See also Figure 1 and Figure 2 ,The present invention provides a technical solution: an intelligent lighting control system for rail transit LED, the system includes a distribution module, an analysis module and a compensation module;

[0041] The distribution module is used to arrange multiple LED lamps in a multi-row linear arrangement method, and monitor the current, inductance and temperature data of each LED lamp in real time through sensors;

[0042] The analysis module receives the current, inductance and temperature data of each LED lamp under real-time monitoring, predicts and calculates the light decay speed of each LED lamp, and classifies the predicted data into primary, intermediate and advanced levels, which intuitively reflects the actual light decay speed of each LED lamp;

[0043] The compensation module calculates the luminous flux of LED lamps with a predicted medium light decay rate based on the real-time monitored current, inductance and temperature data of each LED lamp, and adjusts the brightness and light distribution of the LED lamps adjacent to the LED lamp to compensate for the total luminous flux required by the rail transit platform, thereby ensuring the total luminous flux required by the rail transit platform.

[0044] The distribution module includes an LED unit, a control unit and a detection unit;

[0045] The LED unit includes a distribution unit, which distributes LED lights in a multi-row linear arrangement, with a row spacing of 2 meters and a distance of 1.5 meters between each row of LED lights;

[0046] The control unit is a microcontroller;

[0047] The detection unit includes a voltage unit, a current unit and a temperature unit;

[0048] The voltage unit is a voltage sensor used to monitor the voltage data of the LED lamp in real time. The current unit is a current sensor used to monitor the current data of the LED lamp in real time. The temperature unit is a temperature sensor used to monitor the temperature data of the LED in real time.

[0049] By distributing LED lights in a multi-line straight line arrangement, it can be ensured that light is evenly projected in the coverage area of ​​the rail transit platform to avoid obvious bright and dark areas. At the same time, the working status data of each LED light can be monitored by independent current sensors, temperature sensors and voltage sensors on each LED light, and the position of the faulty LED light can be quickly located.

[0050] Implementation II

[0051] See also Figure 1-Figure 3 ,The present invention provides a technical solution: an intelligent lighting control system for rail transit LED, the system includes a distribution module, an analysis module and a compensation module;

[0052] The distribution module is used to arrange multiple LED lamps in a multi-row linear arrangement method, and monitor the current, inductance and temperature data of each LED lamp in real time through sensors;

[0053] The analysis module receives the current, inductance and temperature data of each LED lamp under real-time monitoring, predicts and calculates the light decay speed of each LED lamp, and classifies the predicted data into primary, intermediate and advanced levels, which intuitively reflects the actual light decay speed of each LED lamp;

[0054] The compensation module calculates the luminous flux of LED lamps with a predicted medium light decay rate based on the real-time monitored current, inductance and temperature data of each LED lamp, and adjusts the brightness and light distribution of the LED lamps adjacent to the LED lamp to compensate for the total luminous flux required by the rail transit platform, thereby ensuring the total luminous flux required by the rail transit platform.

[0055] The analysis module includes a receiving unit, an analyzing unit and an early warning unit.

[0056] The receiving unit receives and stores the real-time current, temperature and voltage data of each LED lamp through the microcontroller.

[0057] The analysis unit includes a light attenuation detection unit and a classification unit;

[0058] The light decay detection unit is based on the real-time current, temperature and voltage data of each LED lamp monitored in real time, and calculates the light decay speed of each LED lamp through a multivariate linear regression formula. The calculation formula is:

[0059] y=β0+β1x1+β2x2+…+β n x n +θ;

[0060] Among them, y is the dependent variable and represents the light decay speed of the LED lamp, x (or x1, x2, ... and x n) is the independent variable and represents the working current, voltage, and temperature parameters of the LED lamp. β0 represents the value of the dependent variable y when the independent variable is 0. β1, β2,..., and β n represent the influence degree of the independent variable on the dependent variable, and θ represents the error term.

[0061] The grading unit grades the calculated light decay rate of the LED lamp into primary, intermediate, and advanced levels. Among them, the primary level represents 0% < y ≥ 8%, the intermediate level represents 9% ≤ y ≥ 20%, and the advanced level represents y ≥ 21%.

[0062] The warning unit monitors the calculated light decay rate of the LED lamp through the microcontroller. When the light decay rate of the LED lamp is at the primary level, it is ignored. When the light decay rate of the LED lamp is at the intermediate level, it is marked and enters the compensation module. When the light decay rate of the LED lamp is at the advanced level, the maintenance personnel are notified in a timely manner by phone, text message, or email for maintenance.

[0063] The microcontroller collects the current, inductance, and temperature data of each LED lamp, and predicts the light decay rate of each LED lamp based on this data. Different measures are taken according to the predicted light decay rate of the LED lamp. When the light decay rate of the LED lamp is at the primary level, it is ignored. When the light decay rate of the LED lamp is at the intermediate level, it enters the compensation module. When the light decay rate of the LED lamp is at the advanced level, the maintenance personnel are notified in a timely manner by phone, text message, or email for maintenance. Through the grading process of the light decay rate, potential problems of the LED lamp can be discovered and solved in a timely manner, which can improve the stability of the entire lighting system.

[0064] Embodiment Three

[0065] Please refer to Figure 1-Figure 3 This invention provides a technical solution: An intelligent lighting control system for rail transit LEDs. The system includes a distribution module, an analysis module, and a compensation module;

[0066] The distribution module is used to arrange multiple LED lamps by means of multi-row linear arrangement, and to monitor the current, inductance, and temperature data of each LED lamp in real time through sensors;

[0067] The analysis module predicts and calculates the light decay rate of each LED lamp by receiving the current, inductance, and temperature data of each LED lamp monitored in real time, and grades the predicted data into primary, intermediate, and advanced levels, intuitively reflecting the actual light decay rate of each LED lamp;

[0068] The compensation module calculates the luminous flux of LED lamps with a predicted medium light decay rate based on the real-time monitored current, inductance and temperature data of each LED lamp, and adjusts the brightness and light distribution of the LED lamps adjacent to the LED lamp to compensate for the total luminous flux required by the rail transit platform, thereby ensuring the total luminous flux required by the rail transit platform.

[0069] The compensation module includes a calculation unit and an illumination compensation unit.

[0070] The calculation unit calculates the luminous flux of the LED lamp based on the current, inductance and temperature data of the LED lamp with a medium light decay speed. The calculation formula is:

[0071] Φ=[n0×(1-k×(T-T0))]×U×I;

[0072] Among them, Φ represents the luminous flux, n0 represents the luminous efficacy at the reference temperature T0, k represents the temperature coefficient, T represents the current operating temperature of the LED lamp, T0 represents the reference temperature, U represents the current operating voltage of the LED lamp, and I represents the operating current of the current operating voltage of the LED lamp.

[0073] The lighting compensation unit uses the luminous flux superposition formula to calculate the luminous flux required to be compensated for each adjacent LED lamp. The calculation formula is:

[0074]

[0075] Where Φr represents the required compensation amount, Φ q The total luminous flux required for the area, Φ represents the luminous flux of the LED lamp with medium attenuation speed, Φ e represents the initial luminous flux of the adjacent LED lamp, i=1, ..., n represents the number of adjacent lamps.

[0076] When the light decay speed of a monitored LED lamp reaches the intermediate level, the compensation module will be entered, and its actual luminous flux will be calculated through the current, inductance and temperature data of the LED lamp. According to the luminous flux superposition formula, the luminous flux required to be compensated for each adjacent LED lamp will be calculated, and the compensation amount will be reasonably distributed to the adjacent LED lamps to avoid over-compensation or under-compensation. In this way, when some LED lamps have intermediate light decay, the lighting uniformity and overall brightness of the rail transit platform can be effectively maintained, ensuring that passengers can clearly see the train information, signs, etc., to ensure passengers' travel safety and comfort experience.

[0077] In the present invention, an intelligent lighting control system for rail transit LEDs, when operating the system, can ensure that light is evenly projected in the coverage area of ​​the rail transit platform by distributing the LED lights in a multi-line straight line arrangement, avoiding the appearance of obvious bright and dark areas, and at the same time, monitor the working status data of each LED lamp through independent current sensors, temperature sensors and voltage sensors on each LED lamp, and quickly locate the position of the faulty LED lamp, and collect the current, inductance and temperature data of each LED lamp through a microcontroller, and predict the light decay speed of each LED lamp based on the data, and improve different measures according to the predicted light decay speed of the LED lamp, when the light decay speed of the LED lamp is primary, it is ignored, and when the light decay speed of the LED lamp is intermediate, it is compensated. Module, when the light decay speed of LED lights is high, the maintenance personnel will be notified in time by phone, text message or email for maintenance. By grading the light decay speed, potential problems of LED lights can be discovered and solved in time, which can improve the stability of the entire lighting system. When the light decay speed of a certain LED lamp reaches the intermediate level, it will enter the compensation module, and its actual luminous flux will be calculated through the current, inductance and temperature data of the LED lamp, and the luminous flux required to be compensated for each adjacent LED lamp will be calculated according to the luminous flux superposition formula, and the compensation amount will be reasonably distributed to the adjacent LED lamps to avoid over-compensation or under-compensation. In this way, when some LED lamps have intermediate light decay, the lighting uniformity and overall brightness of the rail transit platform can be effectively maintained, ensuring that passengers can clearly see the train information, signs, etc., and ensuring the safety and comfort of passengers.

[0078] 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", "comprises" or any other variations 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.

[0079] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited.

Claims

1. An intelligent lighting control system for rail transit LED, characterized in that: The system includes a distribution module, an analysis module, and a compensation module; The distribution module is used to arrange multiple LED lights by a method of multi-row linear arrangement, and to monitor the current, inductance, and temperature data of each LED light in real time through sensors; The analysis module predicts and calculates the light decay rate of each LED light by receiving the current, inductance, and temperature data of each LED light monitored in real time, and classifies the predicted data into primary, intermediate, and advanced levels to intuitively reflect the actual light decay rate of each LED light; Based on the current, inductance, and temperature data of each LED light monitored in real time, the compensation module calculates the luminous flux of the LED lights with an intermediate predicted light decay rate, and adjusts the brightness and light distribution of the LED lights adjacent to this LED light for compensation according to the total luminous flux required for the rail transit platform to ensure the total luminous flux required for the rail transit platform.

2. The intelligent lighting control system for rail transit LED according to claim 1 is characterized in that: The distribution module includes an LED unit, a control unit, and a detection unit; The LED unit includes a distribution unit, and the distribution unit distributes the LED lights in a multi-row linear arrangement, with a row spacing of 2 meters and a spacing between each row of LED lights of 1.5 meters; The control unit is a microcontroller; The detection unit includes a voltage unit, a current unit, and a temperature unit; The voltage unit is a voltage sensor for monitoring the voltage data of the LED lights in real time, the current unit is a current sensor for monitoring the current data of the LED lights in real time, and the temperature unit is a temperature sensor for monitoring the temperature data of the LED in real time.

3. The intelligent lighting control system for rail transit LED according to claim 2 is characterized in that: The analysis module includes a receiving unit, an analysis unit, and a warning unit; The receiving unit receives and stores the real-time current, temperature, and voltage data of each LED light through the microcontroller.

4. The intelligent lighting control system for rail transit LED according to claim 3 is characterized in that: The analysis unit includes a light decay detection unit and a classification unit.

5. The intelligent lighting control system for rail transit LED according to claim 4 is characterized in that: Based on the real-time current, temperature, and voltage data of each LED light monitored in real time, the light decay detection unit calculates the light decay rate of each LED light through a multiple linear regression formula, and the calculation formula is: y=β0+β1x1+β2x2+…+β n x n +θ; Among them, y is the dependent variable and represents the light decay speed of the LED lamp, x (or x1, x2, ... and x n ) are independent variables and represent the operating current, voltage and temperature parameters of the LED lamp, β0 represents the value of the dependent variable y when the independent variable is 0, β1, β2, … and β n represents the influence of the independent variable on the dependent variable, and θ represents the error term.

6. The intelligent lighting control system for rail transit LED according to claim 5, characterized in that: The classification unit classifies the calculated light decay rate of the LED lights into primary, intermediate, and advanced levels, where primary represents 0% < y ≥ 8%, intermediate represents 9% ≤ y ≥ 20%, and advanced represents y ≥ 21%.

7. The intelligent lighting control system for rail transit LED according to claim 6, characterized in that: The warning unit monitors the calculated light decay rate of the LED lights through the microcontroller. When the light decay rate of the LED light is primary, it is ignored. When the light decay rate of the LED light is intermediate, it is marked and enters the compensation module. When the light decay rate of the LED light is advanced, the maintenance personnel are notified in time by phone, text message, or email for maintenance.

8. The intelligent lighting control system for rail transit LED according to claim 1, characterized in that: The compensation module includes a calculation unit and a lighting compensation unit.

9. The intelligent lighting control system for rail transit LED according to claim 8, characterized in that: The calculation unit calculates the luminous flux of the LED light with an intermediate light decay rate based on the current, inductance, and temperature data of the LED light, and the calculation formula is: Φ = [n0 × (1 - k × (T - T0))] × U × I; Among them, Φ represents the luminous flux, n0 represents the luminous efficacy at the reference temperature T0, k represents the temperature coefficient, T represents the current operating temperature of the LED lamp, T0 represents the reference temperature, U represents the current operating voltage of the LED lamp, and I represents the operating current of the current operating voltage of the LED lamp.

10. The intelligent lighting control system for rail transit LED according to claim 9, characterized in that: The lighting compensation unit uses the luminous flux superposition formula to calculate the luminous flux required to be compensated for each adjacent LED lamp, and the calculation formula is: Where Φr represents the required compensation amount, Φ q The total luminous flux required for the area, Φ represents the luminous flux of the LED lamp with medium attenuation speed, Φ e represents the initial luminous flux of the adjacent LED lamp, i=1,…, n represents the number of adjacent lamps.

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