LED street lamp test control system

Abstract

The invention relates to the technical field of LED street lamp control, and discloses an LED street lamp test control system, which comprises a multi-dimensional acquisition module and a test control module. According to the LED street lamp test control system, management data and optical detection data of all LED street lamps and sensing data of the working environment of the LED street lamps are acquired through a multi-dimensional acquisition module and are classified to form a data set, a test control module analyzes the switching delay degree and the dimming smoothness of each LED street lamp, corresponding switching fluctuation rate and smoothing coefficient are generated, and the switching fluctuation rate and the smoothing coefficient are calculated. The LED street lamp with abnormal delay is accurately identified, the light attenuation degree of each LED street lamp is analyzed, the corresponding light attenuation coefficient is generated, the root of the light attenuation problem is accurately judged, the multi-dimensional analysis accuracy is high, the fluctuation threshold value, the smooth threshold value and the light attenuation threshold value of the fixed range are set, whether the LED street lamp has the switching delay problem and the function fault or not is judged, and the LED street lamp is high in accuracy. And the corresponding management suggestions are automatically output according to the environment adaptability to the working environment, so that the fault expansion is avoided, and the intelligent decision-making reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of LED street lamp control, and specifically to an LED street lamp test control system. Background Art

[0002] LED street lamps use light-emitting diodes as light sources and have many advantages compared with high-pressure sodium lamps, metal halide lamps, etc. First of all, the luminous efficiency of LED street lamps is extremely high, and more electrical energy can be converted into light energy. Under the same power, its luminous intensity far exceeds that of traditional street lamps, providing a brighter and more uniform lighting effect for roads, effectively improving road safety and visibility. Secondly, the lifespan of LED street lamps is extremely long. The lifespan of the light source of traditional street lamps is usually about several thousand hours, while the lifespan of LED street lamps can reach tens of thousands of hours or even longer, greatly reducing the lamp replacement frequency and maintenance costs. To ensure the performance and quality of LED street lamps, a strict test control link is indispensable. During the production process, various parameters of LED street lamps need to be accurately tested. First is the optical performance test, including luminous flux, color rendering index, light distribution curve, etc. The luminous flux determines the luminous intensity of the street lamp, the color rendering index affects the color rendering effect of objects under the light, and the light distribution curve reflects the light distribution. These parameters are directly related to the lighting quality and effect of the street lamp. Through professional equipment such as integrating sphere photometers, these optical parameters can be accurately measured to ensure compliance with design requirements. Secondly is the electrical performance test, mainly detecting indicators such as the input voltage, current, and power factor of the street lamp. Stable electrical performance is the basis for ensuring the normal operation of the street lamp. The fluctuation ranges of the input voltage and current should be within the specified values. The higher the power factor, the higher the utilization efficiency of electrical energy. High-precision electrical parameter testers can be used to accurately measure and analyze these electrical parameters. In addition, environmental adaptability tests are also required to simulate different environmental conditions such as temperature, humidity, and vibration, and to detect the working performance and reliability of the street lamp under these conditions.

[0003] Currently, traditional LED street lamp test control systems often ignore the performance changes under high-temperature and high-humidity environments, lack a unified evaluation mechanism, are difficult to accurately evaluate the luminous efficiency and light decay degree, and the reliability of test results is low. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides an LED street lamp test control system, which has the advantages of high precision in multi-dimensional analysis and strong reliability in intelligent decision-making, and solves the problems that traditional LED street lamp test control systems often ignore the performance changes under high-temperature and high-humidity environments and the low reliability of test results.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: An LED street lamp test control system, comprising a multi-dimensional acquisition module and a test control module; The multi-dimensional acquisition module is composed of a sample data unit, an optical data unit and an environmental data unit. The sample data unit collects a sample data set through a network connection to a database. The sample data set includes management data of all LED street lamps. The optical data unit collects an optical data set through a network connection to a detection device. The optical data set includes optical detection data of all LED street lamps. The environmental data unit collects an environmental data set through a network connection to a sensing device. The environmental data set includes sensing data of the working environment of the LED street lamp; The test control module is composed of a function analysis unit, a voltage withstand analysis unit and a street lamp management unit. The function analysis unit analyzes the switch delay degree and dimming smoothness of each LED street lamp according to the sample data set and the optical data set, and generates a corresponding switch volatility and smoothness coefficient . The voltage withstand analysis unit analyzes the light decay degree of each LED street lamp according to the sample data set, the optical data set and the environmental data set, and generates a corresponding light decay coefficient . The street lamp management unit is provided with fluctuation thresholds , smoothness thresholds and light decay thresholds within a fixed range. Then, in combination with the switch volatility , the smoothness coefficient and the light decay coefficient , it determines whether there are switch delay problems and functional failures in the LED street lamp, as well as the environmental adaptability to the working environment, and outputs corresponding management suggestions.

[0008] Preferably, the sample data set includes the switch delay duration, brightness transition duration, chip temperature value, continuous working duration, rated temperature, rated humidity, rated current and rated voltage of the LED street lamp.

[0009] Preferably, the optical data set includes the brightness value, color temperature value and luminous flux of the LED street lamp.

[0010] Preferably, the environmental data set includes the temperature , humidity , current , voltage and power factor of the working environment of the LED street lamp.

[0011] Preferably, the calculation process of the switch volatility is as follows: According to the sample data set, extract the The management data of the th LED street lamp, and the switch delay duration of the th LED street lamp for several times is marked as to , indicating the switch delay duration from the first time to the th time; ; ; In the formula, represents the average value of the switch delay duration of the th LED street lamp, represents the th switch delay duration, represents the switch volatility of the th LED street lamp calculated according to the standard deviation formula .

[0012] Preferably, the calculation process of the smoothing coefficient is as follows: According to the sample data set, the brightness transition duration of the th LED street lamp is marked as , and the chip temperature value of the th LED street lamp is marked as ; According to the optical data set, the management data of the th LED street lamp is extracted, and the brightness value of the th LED street lamp is marked as , and the color temperature value of the th LED street lamp is marked as , ; In the formula, represents the weight for the switch volatility, represents the brightness adjustment rate of the th LED street lamp, represents the weight for the brightness adjustment rate, represents the color temperature adjustment rate of the th LED street lamp, represents the weight for the color temperature adjustment rate, represents the change amount of the chip temperature value during the dimming process of the th LED street lamp, represents the weight for the change amount of the chip temperature value, , , and are all constants, and , It is expressed as , , and weights, and the smoothing coefficient of the th LED street lamp is calculated. .

[0013] Preferably, the calculation process of the light decay coefficient is as follows: According to the sample data set, the continuous working duration of the th LED street lamp is marked as , the rated temperature of the th LED street lamp is marked as , the rated humidity of the th LED street lamp is marked as , the rated current of the th LED street lamp is marked as , and the rated voltage of the th LED street lamp is marked as ; According to the optical data set, the luminous flux of the th LED street lamp is marked as ; ; In the formula, represents the change in luminous flux during the dimming process of the th LED street lamp, represents the luminous flux adjustment rate of the th LED street lamp, represents the weight for the luminous flux adjustment rate, represents the weight for the ratio of the ambient temperature to the rated temperature, represents the weight for the ratio of the ambient humidity to the rated humidity, represents the weight for the ratio of the ambient current to the rated current, represents the weight for the ratio of the ambient voltage to the rated voltage, represents the change in power factor during the dimming process of the th LED street lamp, represents the weight for the change in power factor, , , , , and are all constants, and , It is expressed as , , , , and weights, the light decay coefficient of the th LED street lamp is calculated. .

[0014] Preferably, when the switching volatility exceeds the fluctuation threshold , it indicates that there is a serious switching delay problem with the LED street lamp, and it is recommended to scrap it in time.

[0015] Preferably, when the smoothing coefficient exceeds the smoothing threshold , it indicates that there is a functional failure during the dimming process of the LED street lamp, and it is recommended to replace the parts in time.

[0016] Preferably, when the light decay coefficient exceeds the light decay threshold , it indicates that the LED street lamp has poor environmental adaptability, and it is recommended to replace the parts in time.

[0017] Compared with the prior art, the present invention provides an LED street lamp test control system, which has the following beneficial effects: 1. The present invention connects the database, the detection device and the sensing device through the multi-dimensional acquisition module network, obtains the management data, the optical detection data of all LED street lamps and the sensing data of the working environment of the LED street lamps, and classifies and forms a sample data set, an optical data set and an environmental data set. The test control module analyzes the switching delay degree and dimming smoothness of each LED street lamp according to the sample data set and the optical data set, and generates the corresponding switching volatility and the smoothing coefficient , accurately identifies the LED street lamps with abnormal delays, realizes multi-factor coupling analysis through weight allocation, ensures that the dimming function is scientifically evaluated, and the test control module analyzes the light decay degree of each LED street lamp according to the sample data set, the optical data set and the environmental data set, and generates the corresponding light decay coefficient , quantifies the environmental adaptability, accurately judges the root cause of the light decay problem, and has high accuracy in multi-dimensional analysis.

[0018] 2. The present invention sets a fixed range of fluctuation threshold , smoothing threshold and light decay threshold through the test control module. Then, combined with the switching volatility , the smoothing coefficient and the light decay coefficient , it judges whether there are switching delay problems and functional failures with the LED street lamps, as well as the environmental adaptability to the working environment, and outputs the corresponding management suggestions. The switching volatility Exceeding the fluctuation threshold indicates that there is a serious switch delay problem in the LED street lamp. It is recommended to scrap it in time to avoid circuit failures caused by the accumulation of delays. The smoothing coefficient Exceeding the smoothing threshold indicates that there is a functional failure during the dimming process of the LED street lamp. It is recommended to replace the parts in time to ensure the smoothness of brightness adjustment. The light decay coefficient Exceeding the light decay threshold indicates that the LED street lamp has poor environmental adaptability. It is recommended to replace the parts in time to effectively extend the service life of the street lamp in complex environments. By comparing the coefficients calculated in real time with the thresholds, management suggestions are automatically generated to avoid the expansion of faults, and the intelligent decision-making is highly reliable. Brief Description of the Drawings

[0019] Figure 1 This is the system flow chart of the present invention. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Since traditional LED street lamp test control systems often ignore the performance changes in high-temperature and high-humidity environments, lack a unified evaluation mechanism, and are difficult to accurately evaluate the luminous efficiency and light decay degree, the reliability of test results is relatively low. Therefore, an LED street lamp test control system is provided. Please refer to Figure 1 An LED street lamp test control system includes a multi-dimensional acquisition module and a test control module; The multi-dimensional acquisition module consists of a sample data unit, an optical data unit, and an environmental data unit. The sample data unit collects a sample data set through a network connection to a database. The sample data set includes the management data of all LED street lamps. The sample data set includes the switch delay duration, brightness transition duration, chip temperature value, continuous working duration, rated temperature, rated humidity, rated current, and rated voltage of the LED street lamp; The optical data unit collects an optical data set through a network connection to a detection device. The optical data set includes the optical detection data of all LED street lamps. The optical data set includes the brightness value, color temperature value, and luminous flux of the LED street lamp; The environmental data unit collects an environmental data set through a network connection to a sensing device. The environmental data set includes the sensing data of the working environment of the LED street lamp. The environmental data set includes the temperature of the working environment of the LED street lamp , humidity , current , voltage and power factor , ensuring comprehensive monitoring of the street lamp status and avoiding detection blind spots in a single dimension; The test control module consists of a function analysis unit, a withstand voltage analysis unit, and a street lamp management unit. The function analysis unit analyzes the switch delay degree and dimming smoothness of each LED street lamp based on the sample data set and the optical data set, and generates the corresponding switch volatility and smoothness coefficient ; The calculation process of the switch volatility is as follows: According to the sample data set, extract the management data of the th LED street lamp, and mark the switch delay duration of the th LED street lamp for several times as , to representing the switch delay duration from the first time to the th time; ; ; In the formula, represents the average value of the switch delay duration of the th LED street lamp, represents the switch delay duration of the th time, represents the switch volatility of the th LED street lamp calculated according to the standard deviation formula, quantifying the stability of the switch action and being able to accurately identify the LED street lamps with abnormal delays; The calculation process of the smoothness coefficient is as follows: According to the sample data set, mark the brightness transition duration of the th LED street lamp as , and mark the chip temperature value of the th LED street lamp as ; According to the optical data set, extract the management data of the th LED street lamp, and mark the brightness value of the th LED street lamp as , and mark the color temperature value of the th LED street lamp as , ; In the formula, represents the weight for the switch volatility Indicates the brightness adjustment rate of the n-th LED street lamp, represents the weight for the brightness adjustment rate, Indicates the color temperature adjustment rate of the n-th LED street lamp, represents the weight for the color temperature adjustment rate, Indicates the change amount of the chip temperature value during the dimming process of the n-th LED street lamp, represents the weight for the change amount of the chip temperature value, , , and are all constants, and , represents that according to , , and weights, the smoothing coefficient of the n-th LED street lamp is calculated, and multi-factor coupling analysis is achieved through weight allocation to ensure scientific evaluation of the dimming function; The withstand voltage analysis unit analyzes the light decay degree of each LED street lamp based on the sample data set, optical data set, and environmental data set, and generates the corresponding light decay coefficient , and its calculation process is as follows: Based on the sample data set, the continuous working duration of the n-th LED street lamp is marked as , the rated temperature of the n-th LED street lamp is marked as , the rated humidity of the n-th LED street lamp is marked as , the rated current of the n-th LED street lamp is marked as , and the rated voltage of the n-th LED street lamp is marked as ; Based on the optical data set, the luminous flux of the n-th LED street lamp is marked as ; ; In the formula, represents the change amount of the luminous flux during the dimming process of the n-th LED street lamp, represents the luminous flux adjustment rate of the n-th LED street lamp, represents the weight for the luminous flux adjustment rate, Represents the weight for the ratio of the ambient temperature to the rated temperature, Represents the weight for the ratio of the ambient humidity to the rated humidity, Represents the weight for the ratio of the ambient current to the rated current, Represents the weight for the ratio of the ambient voltage to the rated voltage, Represents the change in the power factor during the dimming process of the nth LED street lamp, Represents the weight for the change in the power factor, 、 、 、 、 and are all constants, and , Represents calculating, according to the weights of 、 、 、 、 and the light decay coefficient of the nth LED street lamp, which quantifies the environmental adaptability, accurately judges the root cause of the light decay problem, and has high precision in multi-dimensional analysis; The street lamp management unit is set with a fixed range of fluctuation threshold 、smoothing threshold and light decay threshold 、smoothing coefficient and light decay coefficient ,and then combines the switch volatility 、smoothing coefficient and light decay coefficient to judge whether there are switch delay problems and functional failures in the LED street lamp, as well as its environmental adaptability to the working environment, and output corresponding management suggestions. When the switch volatility exceeds the fluctuation threshold , it indicates that the LED street lamp has a serious switch delay problem, and it is recommended to scrap it in time to avoid circuit failures caused by the accumulation of delays. When the smoothing coefficient exceeds the smoothing threshold , it indicates that there is a functional failure during the dimming process of the LED street lamp, and it is recommended to replace the parts in time to ensure the smoothness of the brightness adjustment. When the light decay coefficient exceeds the light decay threshold , it indicates that the environmental adaptability of the LED street lamp is poor, and it is recommended to replace the parts in time to effectively extend the service life of the street lamp in a complex environment. By comparing the coefficients calculated in real time with the thresholds, management suggestions are automatically generated to avoid the expansion of failures, and the reliability of intelligent decision-making is strong. Example 1:

[0022] In this experiment, an LED street lamp with a luminous flux of 1000 lumens was selected as the experimental object. After testing, the switching volatility of the LED street lamp was 1, the brightness transition time was 2 seconds, the color temperature value was 4000K, the change in the chip temperature value was 10°C, and the smoothing coefficient of the LED street lamp The calculation process is as follows: ; ; In the formula, represents the weight for the switching volatility, represents the brightness adjustment rate of the LED street lamp, represents the weight for the brightness adjustment rate, represents the color temperature adjustment rate of the LED street lamp, represents the weight for the color temperature adjustment rate, represents the change in the chip temperature value during the dimming process of the LED street lamp, represents the weight for the change in the chip temperature value, , , and are all constants, and , according to , , and weights, the smoothing coefficient of the LED street lamp is calculated to be is , and the functional threshold is set to 0 - 3. After judgment, the smoothing coefficient of the LED street lamp has exceeded the smoothing threshold , indicating a functional failure during the dimming process of the LED street lamp. It is recommended to replace the parts in a timely manner. Example 2:

[0023] In this experiment, an LED street lamp with a working environment temperature of 60°C was selected as the experimental object. After testing, the working environment humidity was 48%, the current was 385 mA, the voltage was 2.7 V, the change in luminous flux during the dimming process of the LED street lamp was 100 lumens, the continuous working duration was 1000 hours, the rated temperature was 50°C, the rated humidity was 60%, the rated current was 350 mA, the rated voltage was 3.0 V, and the change in power factor was 0.05. The light decay coefficient of the LED street lamp The calculation process is as follows: ; ; In the formula, lumens represents the change in luminous flux during the dimming process of the LED street lamp, represents the light flux adjustment rate of the LED street lamp, represents the weight for the light flux adjustment rate, represents the weight for the ratio of the ambient temperature to the rated temperature, represents the weight for the ratio of the ambient humidity to the rated humidity, represents the weight for the ratio of the ambient current to the rated current, represents the weight for the ratio of the ambient voltage to the rated voltage, represents the change amount of the power factor during the dimming process of the LED street lamp, represents the weight for the change amount of the power factor, , , , , and are all constants, and , calculated according to the weights of , , , , and , the light decay coefficient of the LED street lamp is obtained as being , and the light decay threshold is set to 0 - 1. After judgment, the light decay coefficient of the LED street lamp does not exceed the light decay threshold , indicating that the LED street lamp has good environmental adaptability and does not require part replacement.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A LED street light test control system, characterized in that: Including multi-dimensional acquisition module and test control module; The multi-dimensional acquisition module is composed of a sample data unit, an optical data unit and an environmental data unit. The sample data unit is connected to a database through a network to collect a sample data set, and the sample data set includes management data of all LED street lamps. The optical data unit is connected to a detection device through a network to collect an optical data set, and the optical data set includes optical detection data of all LED street lamps. The environmental data unit is connected to a sensor device through a network to collect an environmental data set, and the environmental data set includes sensor data of the working environment of the LED street lamp. The test control module consists of a function analysis unit, a withstand voltage analysis unit and a street light management unit. The function analysis unit analyzes the switching delay and dimming smoothness of each LED street light according to the sample data set and the optical data set, and generates the corresponding switching fluctuation rate. and smoothing coefficient The withstand voltage analysis unit analyzes the light decay degree of each LED street lamp according to the sample data set, the optical data set and the environmental data set, and generates the corresponding light decay coefficient The street light management unit is set with a fixed range of fluctuation thresholds , smoothing threshold and light attenuation threshold , combined with the switching fluctuation rate , smoothing coefficient And light decay coefficient , determine whether the LED street lamp has switch delay problems and functional failures, as well as its environmental adaptability to the working environment, and output corresponding management suggestions.

2. The LED street light test control system according to claim 1, characterized in that: The sample data set includes the switch delay time, brightness transition time, chip temperature value, continuous working time, rated temperature, rated humidity, rated current and rated voltage of the LED street lamp.

3. The LED street light test control system according to claim 2, characterized in that: The optical data set includes brightness value, color temperature value and luminous flux of the LED street lamp.

4. The LED street light test control system according to claim 3, characterized in that: The environmental data set includes the temperature of the working environment of the LED street lamp ,humidity , Current ,Voltage and power factor .

5. The LED street light test control system according to claim 4, characterized in that: The switching fluctuation rate The calculation process is as follows: According to the sample data set, extract the The management data of each LED street light will be The switching delay time of a LED street lamp is marked as , to Indicates the first to Secondary switch delay time; ； ； In the formula, Indicates The average delay time of the LED street light switch, Indicates Secondary switch delay time, According to the standard deviation formula, the The switching fluctuation rate of LED street lights .

6. The LED street light test control system according to claim 5, characterized in that: The smoothing coefficient The calculation process is as follows: According to the sample data set, The brightness transition duration of an LED street lamp is marked as , will The chip temperature value of an LED street lamp is marked as ; According to the optical data set, extract the The management data of each LED street light will be The brightness value of an LED street lamp is marked as , will The color temperature value of an LED street lamp is marked as , ； In the formula, represents the weight for the switching volatility, Indicates The brightness adjustment rate of each LED street lamp, Represents the weight for the brightness adjustment rate, Indicates The color temperature adjustment rate of LED street lights, Represents the weight of the color temperature adjustment rate, Indicates The change in chip temperature during the dimming process of an LED street lamp, Represents the weight for the change in chip temperature value, , , and are constants, and , Indicates according to , , and Weight, calculate the Smoothing coefficient of LED street lamp .

7. The LED street light test control system according to claim 6, characterized in that: The light decay coefficient The calculation process is as follows: According to the sample data set, The continuous working time of each LED street lamp is marked as , will The rated temperature of an LED street lamp is marked as , will The humidity rating of LED street lights is marked as , will The rated current of each LED street lamp is marked as , will The rated voltage of an LED street lamp is marked as ; According to the optical data set, The luminous flux of an LED street lamp is marked as ; ； In the formula, Indicates The change in luminous flux during the dimming process of an LED street lamp, Indicates The luminous flux adjustment rate of each LED street lamp, Represents the weight of the light flux adjustment rate, Represents the weight for the ratio of ambient temperature to rated temperature, Represents the weight of the ratio of ambient humidity to rated humidity, Represents the weight for the ratio of ambient current to rated current, Represents the weight of the ratio of ambient voltage to rated voltage, Indicates The change in power factor during the dimming process of an LED street lamp, Represents the weight for the power factor change, , , , , and are constants, and , Indicates according to , , , , and Weight, calculate the Light decay coefficient of LED street lamp .

8. The LED street light test control system according to claim 7, characterized in that: The switching fluctuation rate Exceeding the volatility threshold When the LED street light is on, it means that there is a serious switch delay problem and it is recommended to be scrapped in time.

9. The LED street light test control system according to claim 8, characterized in that: The smoothing coefficient Smoothing threshold exceeded When it is on, it means that there is a functional failure in the dimming process of the LED street light, and it is recommended to replace the parts in time.

10. The LED street light test control system according to claim 9, characterized in that: The light decay coefficient Exceeding the light attenuation threshold When it is on, it means that the LED street light has poor environmental adaptability and it is recommended to replace parts in time.

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