Street lamp fault analysis system and method based on Internet of Things

Abstract

The invention discloses a street lamp fault analysis system and method based on the Internet of Things, and relates to the technical field of lamp fault analysis. Comprising a data monitoring module, a fault analysis module and an early warning management module. The data monitoring module is used for monitoring the running state of the street lamp in real time and analyzing the running state to obtain a fault value and a fault frequency; the fault analysis module is used for analyzing the operation data of the street lamp to obtain a comprehensive fault score; the maintenance management module is used for distributing maintenance tasks according to the maintenance priority of the fault street lamp; the system further comprises a data acquisition module and a cloud service platform. The data acquisition module is used for acquiring running state data of the street lamp in real time through an equipped sensor, and sending the acquired data to the cloud service platform for storage; by continuously analyzing the operation data of the street lamp in real time, potential problems can be found in time, measures can be taken, the accuracy of fault detection is improved, and the fault rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lamp fault analysis, and in particular to a street lamp fault analysis system and method based on the Internet of Things. Background Art

[0002] Street lamps are not only part of urban infrastructure, but also important equipment to ensure urban traffic safety, public safety and environmental beauty. With the development of technology, street lamps have gradually become a part of smart cities from traditional simple lighting tools. They can support the construction of smart cities, improve urban management efficiency and the quality of life of residents. Therefore, street lamps play an extremely important role and value in modern cities.

[0003] Failure of street lamps may cause lighting interruption of streets and roads at night, seriously affecting the sight of drivers and pedestrians and increasing the probability of traffic accidents. Timely fault analysis can ensure the normal operation of street lamps, thereby avoiding traffic accidents, traffic congestion and other problems. At present, the fault analysis of street lamps relies on manual inspections to find faults in practice, which is inefficient and the accuracy of fault diagnosis is insufficient. Summary of the invention

[0004] The main purpose of the present invention is to provide a street lamp fault analysis system and method based on the Internet of Things to overcome the problems mentioned in the above background technology.

[0005] To achieve the above object, according to one aspect of the present invention, a street lamp fault analysis system based on the Internet of Things is provided, the system comprising: a data monitoring module, a fault analysis module and an early warning management module;

[0006] The data monitoring module is used for real-time monitoring of the operating status of street lamps and analyzes them to obtain fault values ​​and fault frequencies;

[0007] The fault analysis module is used to analyze the operating data of the street lamps to obtain a comprehensive fault score and send maintenance instructions to the maintenance management module; the specific steps are as follows:

[0008] The current value Lij and the current value threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation range ΔY 阈值 , temperature value Wij, temperature threshold deviation range ΔW 阈值 , humidity value Dij, humidity threshold deviation range ΔD 阈值 , light intensity Gij and light intensity threshold deviation range ΔG 阈值 Substitute the value of into the formula

[0009] The deviation evaluation value Rij of the street lamp is calculated, where a1, a2, a3, a4 and a5 are the set weight factors respectively;

[0010] Substitute the values ​​of the recent fault frequency Pi of the street lamp, the historical fault value Hi and the deviation evaluation value Rij of the street lamp into the set formula The comprehensive fault score Kij of the street lamp is calculated, where b1, b2 and b3 are the set weight factors, λ is the set correction factor; Hi is the historical fault value, and the specific calculation formula is: The more historical failures a street lamp has, the greater the historical failure value;

[0011] A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the comprehensive fault score of the street lamp is less than or equal to the set comprehensive fault score threshold, it means that the street lamp is operating normally, no maintenance is required, and monitoring continues;

[0012] The maintenance management module is used to allocate maintenance tasks according to the maintenance priorities of faulty street lamps.

[0013] Furthermore, it also includes a data collection module and a cloud service platform;

[0014] The data acquisition module is used to collect the operating status data of street lamps in real time through the equipped sensors, and send the collected data to the cloud service platform for storage; the equipped sensors include: current sensor, voltage sensor, temperature sensor, humidity sensor and light intensity sensor; the operating status data of street lamps include: current, voltage, temperature, humidity and light intensity;

[0015] The cloud service platform is used to store data collected from various sensors, including real-time data and historical data.

[0016] Furthermore, the specific analysis steps of the fault value are:

[0017] Get the current value of the street lamp and mark it as Lij, where i=1, 2, 3...I, I is a positive integer, I represents the total number of street lamps, and i represents the serial number of any street lamp; where j=1, 2, 3...J, J is a positive integer, J represents the total number of collection moments, and j represents the serial number of any collection moment; set a current threshold, set the rated current of the street lamp as the current threshold, and mark it as L 阈值 , set the current threshold to allow a deviation of ΔL阈值 =L 阈值 ×δ1, δ1 is the allowable deviation ratio of the set current (for example, the allowable error is ±10%, then δ1 = 0.1); obtain the voltage value of the street lamp and record it as Yij; set a voltage threshold, set the rated voltage of the street lamp as the voltage threshold, and mark it as Y 阈值 , set the voltage threshold to allow a deviation of ΔY 阈值 =Y 阈值 ×δ2, δ2 is the allowable deviation ratio of the set voltage; obtain the working temperature of the street lamp and mark it as Wij; set a working temperature threshold of the street lamp and mark it as W 阈值 , set the temperature threshold to allow a deviation of ΔW 阈值 =W 阈值 ×δ3, δ3 is the allowable deviation ratio of the set temperature; obtain the humidity of the street lamp when it is working and mark it as Dij; set a street lamp working humidity threshold and mark it as D 阈值 , set the humidity threshold to allow a deviation of ΔD 阈值 =D 阈值 ×δ4, δ4 is the allowable deviation ratio of the set humidity; obtain the light intensity of the street lamp and mark it as Gij; set a light intensity threshold and mark it as G 阈值 , set the temperature threshold to allow a deviation of ΔG 阈值 =G 阈值 ×δ5, δ5 is the allowable deviation ratio of the set humidity; the current value Lij, the current threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation value ΔY 阈值 , temperature value Wij,

[0018] Temperature threshold deviation ΔW 阈值 , humidity value Dij, humidity threshold deviation value ΔD 阈值 , light intensity Gij and light intensity threshold deviation ΔG 阈值 Substitute the values ​​into the formula The fault value Qij of the street light fixture is calculated; from the formula, when the fault value Qij of the street light fixture is 1, it means that the street light fixture has a fault, it is marked as a priority maintenance fixture, and an immediate maintenance instruction is sent to the maintenance management module; when Qij is 0, it means that the street light fixture is operating normally and no maintenance is required.

[0019] Furthermore, the specific analysis steps of the fault frequency are as follows:

[0020] Using the formula The proportion of the number of faults that occur in a certain time window (the last T days) of a street light fixture is calculated, that is, the fault frequency Pi; a fault frequency threshold is set, and the fault frequency of the street light fixture is compared with the set fault frequency threshold. When the fault frequency of the street light fixture is greater than the set fault frequency threshold, the street light fixture is a high-frequency fault street light fixture, and it is marked as a second-priority maintenance fixture, and a maintenance instruction is sent to the maintenance management module; when the fault frequency of the street light fixture is less than or equal to the set fault frequency threshold, the street light fixture is in normal operation and continues to be monitored.

[0021] Furthermore, the specific analysis steps of the deviation evaluation value of the street lamp are as follows:

[0022] The current value Lij and the current value threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation range ΔY 阈值 , temperature value Wij, temperature threshold deviation range ΔW 阈值 , humidity value Dij, humidity threshold deviation range ΔD 阈值 , light intensity Gij and light intensity threshold deviation range ΔG 阈值 Substitute the value of into the formula

[0023] The deviation evaluation value Rij of the street lamp is calculated, where a1, a2, a3, a4 and a5 are respectively set weight factors.

[0024] Furthermore, the maintenance tasks are allocated according to the maintenance priority of the faulty street lamps. The specific steps are as follows:

[0025] When the first batch of maintenance personnel receive maintenance instructions for priority maintenance lamps, they are matched according to the priority maintenance lamp list, and the status of the first batch of maintenance personnel is changed to the maintenance status. After the maintenance is completed, the maintenance personnel upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the maintenance personnel by one, update the professional skill score, and re-add them to the list of maintenance personnel for matching; if the maintenance tasks of the priority maintenance lamps are insufficient, some secondary priority maintenance lamp tasks are supplemented; when the second batch of maintenance personnel receive maintenance instructions for secondary priority maintenance lamps, they are matched according to the secondary priority maintenance lamp list, and the status of the second batch of maintenance personnel is changed to the maintenance status. After the maintenance is completed, the maintenance personnel upload the maintenance completion instruction The order is sent to the cloud service platform, and the historical maintenance times of the personnel to be maintained are increased by one, the professional skill score is updated, and the personnel to be maintained are added to the list of personnel to be maintained for matching; if the second priority maintenance lamp tasks are insufficient, some regular maintenance lamp tasks are assigned; when the third batch of personnel to be maintained receive maintenance instructions for regular maintenance lamps, they are matched according to the regular maintenance lamp list, and the status of the third batch of personnel to be maintained is changed to the maintenance status. After the maintenance is completed, the personnel to be maintained uploads the maintenance completion instruction to the cloud service platform, and the historical maintenance times of the personnel to be maintained are increased by one, the professional skill score is updated, and the personnel to be maintained are added to the list of personnel to be maintained for matching; if there is extra time or the task is urgent, assist the first or second batch of personnel to complete high priority tasks.

[0026] Further, the analysis steps for maintenance priority are:

[0027] Obtain information on priority maintenance lamps, second priority maintenance lamps, regular maintenance lamps and lamps that do not require maintenance, and mark the priority maintenance lamps, second priority maintenance lamps and regular maintenance lamps as lamps to be maintained; calculate the distance between the location of the priority maintenance lamps and the location of the maintenance center to obtain the distance value of the street lamps, and sort the priority maintenance lamps from small to large according to the distance value, and send them to the maintenance center; sort the second priority maintenance lamps from large to small according to the fault frequency, and send them to the maintenance center; sort the regular maintenance lamps from large to small according to the comprehensive fault score, and send them to the maintenance center.

[0028] Further, the analysis steps for the batch of personnel to be maintained are:

[0029] Obtain the personnel information of the maintenance personnel in the backend of the maintenance center, including name, age, length of service, historical maintenance times, professional skill score and geographical location; mark the length of service of the backend maintenance personnel as Zn, where n=1, 2, 3...N, N is a positive integer, N represents the total number of backend maintenance personnel, and n represents the number of any backend maintenance personnel; calculate the distance between the current geographical location of the backend maintenance personnel and the location of the street lamp to be maintained to obtain the position value, and mark it as Mn; mark the historical maintenance times and professional skill score of the backend maintenance personnel as Bn and Fn respectively; substitute the values ​​of the length of service Zn, position value Mn, historical maintenance times Bn and professional skill score Fn of the backend maintenance personnel into the formula The priority value Xn of the backend maintenance personnel is calculated, where c1, c2, c3 and c4 are the set weight factors, and e is a natural constant;

[0030] A priority value threshold interval is set for the background maintenance personnel, and the priority value of the background maintenance personnel is compared and analyzed with the set priority threshold interval. When the priority value of the maintenance personnel is greater than the maximum value of the set priority threshold interval, the maintenance personnel is marked as the first batch of personnel to be maintained, and priority maintenance lamps are assigned; when the priority value of the maintenance personnel is within the set priority threshold interval, the maintenance personnel is marked as the second batch of personnel to be maintained, and second priority maintenance lamps are assigned; when the priority value of the maintenance personnel is less than the minimum value of the set priority threshold interval, the maintenance personnel is marked as the third batch of personnel to be maintained, and regular maintenance lamps are assigned.

[0031] Furthermore, the specific analysis steps for professional skills scoring are as follows:

[0032] The total maintenance time of the maintenance personnel is counted, and the average is calculated according to the number of maintenance times to obtain the average maintenance time of the maintenance personnel, which is recorded as Un; the maximum number of historical maintenance times among all maintenance personnel is obtained and recorded as B 最大值 , using the formula Calculate the maintenance experience value of the maintenance personnel Average maintenance time Un and maintenance experience value Substitute into the formula The professional skill score Fn of the maintenance personnel is calculated, where c5 and c6 are the set weight factors.

[0033] In order to achieve the above object, according to another aspect of the present invention, a street lamp fault analysis method based on the Internet of Things is provided, the method comprising the following steps:

[0034] S1: Collect the operating status data of street lamps in real time through sensors, and send the collected data to the cloud service platform for storage;

[0035] S2: Real-time monitoring of the operating status of street lamps and analyzing them to obtain fault values ​​and fault frequencies;

[0036] S3: Analyze the operating data of the street lamps to obtain a comprehensive fault score and send maintenance instructions to S4;

[0037] The current value Lij and the current value threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation range ΔY 阈值 , temperature value Wij, temperature threshold deviation range ΔW 阈值 , humidity value Dij, humidity threshold deviation range ΔD 阈值 , light intensity Gij and light intensity threshold deviation range ΔG 阈值 Substitute the value of into the formula

[0038] The deviation evaluation value Rij of the street lamp is calculated, where a1, a2, a3, a4 and a5 are the set weight factors respectively;

[0039] Substitute the values ​​of the recent fault frequency Pi of the street lamp, the historical fault value Hi and the deviation evaluation value Rij of the street lamp into the set formula The comprehensive fault score Kij of the street lamp is calculated, where b1, b2 and b3 are the set weight factors, λ is the set correction factor; Hi is the historical fault value, and the specific calculation formula is: The more historical failures a street lamp has, the greater the historical failure value;

[0040] A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the comprehensive fault score of the street lamp is less than or equal to the set comprehensive fault score threshold, it means that the street lamp is operating normally, no maintenance is required, and monitoring continues;

[0041] S4: Allocate maintenance tasks according to the maintenance priority of the faulty street light fixtures.

[0042] Beneficial effects of the present invention:

[0043] 1. By monitoring the operating status of street lamps through multi-dimensional parameters and combining the threshold deviation range, misjudgment caused by a single parameter can be avoided, thereby improving the accuracy of fault detection; by monitoring the deviation of current, voltage and temperature, equipment damage caused by overload, overheating and other problems can be avoided, thereby extending the service life of street lamps; real-time feedback of changes in light intensity can ensure that lamps can be replaced in time before their functions weaken or fail, avoiding long-term inefficient operation; the level of public services has been improved, laying a solid foundation for the construction of smart cities, and at the same time reflecting the social and economic value of technology applications.

[0044] 2. Through continuous real-time analysis of street lamp operation data, potential problems can be discovered in time and measures can be taken to effectively ensure the stable operation of the street lamp system and public safety; through the combination of historical fault values ​​and recent fault frequencies, the historical stability and current risk level of street lamps can be effectively captured, providing a basis for preventive maintenance and reducing the failure rate; by judging faults through comprehensive scoring, false alarms and missed alarms can be effectively reduced, thereby improving operation and maintenance efficiency.

[0045] 3. By combining the maintenance task priority with the maintenance personnel priority value, the most suitable maintenance personnel can be effectively matched to ensure that higher priority faults are handled in a timely manner. Multiple factors such as distance, fault frequency, and comprehensive score are used to optimize the task allocation order and improve efficiency. After the maintenance is completed, the maintenance personnel's historical maintenance times and professional skill scores are updated in real time to ensure that the scores always reflect the latest status and provide a reliable basis for subsequent task allocation. If there are insufficient high-priority tasks, they can be flexibly adjusted to allocate secondary priority or regular tasks to avoid idle resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0047] Figure 1 is a schematic diagram of system module connection of the present invention;

[0048] Figure 2 It is a schematic flow chart of the method of the present invention. DETAILED DESCRIPTION

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] According to an embodiment of the present invention, Figure 1 As shown, a street lamp fault analysis system based on the Internet of Things is provided, which includes: a data acquisition module, a cloud service platform, a data monitoring module, a fault analysis module and an early warning management module;

[0054] The data acquisition module is used to collect the operating status data of the street lamp in real time through the equipped sensors, and send the collected data to the cloud service platform for storage; the equipped sensors include: current sensor, voltage sensor, temperature sensor, humidity sensor and light intensity sensor; the operating status data of the street lamp includes: current, voltage, temperature, humidity and light intensity; the current sensor is connected to the power supply circuit for real-time monitoring of the current value of the street lamp; the voltage sensor monitors the stability of the input voltage and is used to monitor the voltage value of the street lamp in real time; the temperature sensor is installed inside or around the lamp to monitor the working temperature and humidity of the street lamp to prevent the lamp from overheating; the humidity sensor is installed inside the street lamp to monitor the humidity level inside the lamp to prevent water vapor, moisture or frost from damaging the electrical components inside the lamp (such as circuit boards, connectors and power supplies); the light intensity sensor is installed on the surface of the lamp to detect the light intensity of the street lamp and evaluate the lighting effect of the street lamp;

[0055] The cloud service platform is used to store data collected from various sensors, including real-time data and historical data;

[0056] The data monitoring module is used to monitor the operating status of street lamps in real time and analyze them to obtain fault values; the specific steps are as follows:

[0057] Get the current value of the street lamp and mark it as Lij, where i=1, 2, 3...I, I is a positive integer, I represents the total number of street lamps, and i represents the serial number of any street lamp; where j=1, 2, 3...J, J is a positive integer, J represents the total number of collection moments, and j represents the serial number of any collection moment; set a current threshold, set the rated current of the street lamp as the current threshold, and mark it as L 阈值 , set the current threshold to allow a deviation of ΔL 阈值 =L 阈值 ×δ1, δ1 is the allowable deviation ratio of the set current (for example, if the allowable error is ±10%, then δ1 = 0.1), then the minimum value of the current threshold deviation range L 最小值 =L 阈值 -ΔL 阈值 , the maximum value of the current threshold deviation range L 最大值 =L 阈值 +ΔL 阈值 ; Get the voltage value of the street lamp and record it as Yij; set a voltage threshold, set the rated voltage of the street lamp as the voltage threshold, and mark it as Y 阈值 , set the voltage threshold to allow a deviation of ΔY 阈值 =Y 阈值 ×δ2, δ2 is the allowable deviation ratio of the set voltage (for example, the allowable error is ±5%, then δ2 = 0.05); obtain the working temperature of the street lamp and mark it as Wij; set a street lamp working temperature threshold and mark it as W 阈值 , set the temperature threshold to allow a deviation of ΔW 阈值 =W 阈值 ×δ3, δ3 is the allowable deviation ratio of the set temperature; obtain the humidity of the street lamp when it is working and mark it as Dij; set a street lamp working humidity threshold and mark it as D 阈值 , set the humidity threshold to allow a deviation of ΔD 阈值 =D 阈值 ×δ4, δ4 is the allowable deviation ratio of the set humidity; obtain the light intensity of the street lamp and mark it as Gij; set a light intensity threshold and mark it as G 阈值 , set the temperature threshold to allow a deviation of ΔG 阈值 =G 阈值×δ5, δ5 is the allowable deviation ratio of the set humidity; the current value Lij, the current threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation value ΔY 阈值 , temperature value Wij, temperature threshold deviation value ΔW 阈值 , humidity value Dij, humidity threshold deviation value ΔD 阈值 , light intensity Gij and light intensity threshold deviation ΔG 阈值 Substitute the value of into the set formula group The fault value Qij of the street light fixture is calculated; it can be seen from the formula that when the fault value Qij of the street light fixture is 1, it means that the street light fixture has a fault, it is marked as a priority maintenance fixture, and an immediate maintenance instruction is sent to the maintenance management module; when Qij=0, it means that the street light fixture is operating normally and no maintenance is required; if the absolute value of the difference between the current current value and the current threshold value is greater than the current deviation value, it means that the current value of the street light fixture is unstable and a fault has occurred; if the absolute value of the difference between the current voltage value and the voltage threshold value is greater than the voltage deviation value, it means that the voltage value of the street light fixture is unstable and a fault has occurred; if the absolute value of the difference between the current temperature and the temperature threshold value is greater than the temperature deviation value, it means that the temperature of the street light fixture is unstable and a fault has occurred; if the absolute value of the difference between the current humidity and the humidity threshold value is greater than the humidity deviation value, it means that the street light fixture The humidity is unstable and a fault occurs; if the absolute value of the difference between the current light intensity value and the light intensity threshold is greater than the light intensity deviation value, it means that the light intensity of the street lamp is unstable and a fault occurs; if the absolute value of the difference between the current current value and the current threshold is less than or equal to the current deviation value, it means that the street lamp is operating normally; if the absolute value of the difference between the current voltage value and the voltage threshold is less than or equal to the voltage deviation value, it means that the street lamp is operating normally; if the absolute value of the difference between the current temperature and the temperature threshold is less than or equal to the temperature deviation value, it means that the street lamp is operating normally; if the absolute value of the difference between the current humidity and the humidity threshold is less than or equal to the humidity deviation value, it means that the street lamp is operating normally; if the absolute value of the difference between the current light intensity value and the light intensity threshold is less than or equal to the light intensity deviation value, it means that the street lamp is operating normally;

[0058] Using the formula Calculate the proportion of the number of faults that occur in a certain time window (the last T days) of the street lamp, that is, the fault frequency Pi; set a fault frequency threshold, compare and analyze the fault frequency of the street lamp with the set fault frequency threshold. When the fault frequency of the street lamp is greater than the set fault frequency threshold, the street lamp is a high-frequency fault street lamp, and it is marked as a second-priority maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the fault frequency of the street lamp is less than or equal to the set fault frequency threshold, the street lamp is in normal operation and continues to be monitored;

[0059] By monitoring the operating status of street lamps through multi-dimensional parameters and combining the threshold deviation range, we can avoid misjudgment caused by a single parameter and improve the accuracy of fault detection. By monitoring the deviation of current, voltage and temperature, we can avoid equipment damage caused by overload, overheating and other problems, thereby extending the service life of street lamps. We can provide real-time feedback on changes in light intensity to ensure that lamps can be replaced in time before their functions weaken or fail, avoiding long-term inefficient operation. This has improved the level of public services, laid a solid foundation for the construction of smart cities, and reflected the social and economic value of technology applications.

[0060] The fault analysis module is used to analyze the operating data of street lamps to obtain a comprehensive fault score; the specific steps are as follows:

[0061] The current value Lij and the current value threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation range ΔY 阈值 , temperature value Wij, temperature threshold deviation range ΔW 阈值 , humidity value Dij, humidity threshold deviation range ΔD 阈值 , light intensity Gij and light intensity threshold deviation range ΔG 阈值 Substitute the value of into the formula

[0062] The deviation evaluation value Rij of the street lamp is calculated, where a1, a2, a3, a4 and a5 are respectively set weight factors; it can be seen from the formula that the greater the difference between the current value of the street lamp and the set current threshold, the greater the evaluation value; the greater the difference between the voltage value of the street lamp and the set voltage threshold, the greater the evaluation value; the greater the difference between the temperature value of the street lamp and the set temperature threshold, the greater the evaluation value; the greater the difference between the humidity value of the street lamp and the set humidity threshold, the greater the evaluation value; the greater the difference between the light intensity value of the street lamp and the set light intensity threshold, the greater the evaluation value;

[0063] Substitute the values ​​of the recent fault frequency Pi of the street lamp and the deviation evaluation value Rij of the street lamp into the set formula The comprehensive fault score Kij of the street lamp is calculated, where b1, b2 and b3 are the set weight factors, and λ is the set correction factor. It can be seen from the formula that the higher the recent fault frequency of the street lamp, the higher the comprehensive fault score; the greater the deviation evaluation value of the street lamp, the higher the comprehensive fault score; the more historical faults of the street lamp, the higher the comprehensive fault score; where Hi is the historical fault value, the specific calculation formula is: The more historical failures a street lamp has, the greater the historical failure value;

[0064] A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the comprehensive fault score of the street lamp is less than or equal to the set comprehensive fault score threshold, it means that the street lamp is operating normally, no maintenance is required, and monitoring continues;

[0065] By continuously analyzing street lamp operation data in real time, potential problems can be discovered in time and measures can be taken to effectively ensure the stable operation of the street lamp system and public safety. By combining historical fault values ​​and recent fault frequencies, the historical stability and current risk level of street lamps can be effectively captured, providing a basis for preventive maintenance and reducing the failure rate. By judging faults through comprehensive scoring, false alarms and missed alarms can be effectively reduced, improving operation and maintenance efficiency.

[0066] The maintenance management module is used to allocate maintenance tasks according to the maintenance priority of the faulty street lamps; the specific steps are as follows:

[0067] Obtain information on priority maintenance lamps, second priority maintenance lamps, regular maintenance lamps and lamps that do not require maintenance, and mark priority maintenance lamps, second priority maintenance lamps and regular maintenance lamps as lamps to be maintained; calculate the distance between the location of the priority maintenance lamps and the location of the maintenance center to obtain the distance value of the street lamps, and sort the priority maintenance lamps from small to large according to the distance value, and send them to the maintenance center; sort the second priority maintenance lamps from large to small according to the fault frequency, and send them to the maintenance center; sort the regular maintenance lamps from large to small according to the comprehensive fault score, and send them to the maintenance center;

[0068] Obtain the personnel information of the maintenance personnel in the backend of the maintenance center, including name, age, length of service, historical maintenance times, professional skill score and geographical location; mark the length of service of the backend maintenance personnel as Zn, where n=1, 2, 3...N, N is a positive integer, N represents the total number of backend maintenance personnel, and n represents the number of any one of the backend maintenance personnel; calculate the distance between the current geographical location of the backend maintenance personnel and the location of the street lamp to be maintained to obtain the position value, and mark it as Mn; mark the historical maintenance times and professional skill score of the backend maintenance personnel as Bn and Fn respectively; substitute the values ​​of the length of service Zn, position value Mn, historical maintenance times Bn and professional skill score Fn of the backend maintenance personnel into the set formula The priority value Xn of the background maintenance personnel is calculated, where c1, c2, c3 and c4 are the set weight factors respectively, and e is a natural constant. It can be seen from the formula that the closer the maintenance personnel's service time is to 10 years, the greater the priority value; the closer the maintenance personnel is to the street lamp to be maintained, the greater the priority value; the more historical maintenance times the maintenance personnel have, the greater the priority value; the higher the professional skill score of the maintenance personnel, the greater the priority value;

[0069] A priority threshold interval is set for the background maintenance personnel, and the priority value of the background maintenance personnel is compared and analyzed with the set priority threshold interval. When the priority value of the maintenance personnel is greater than the maximum value of the set priority threshold interval, the maintenance personnel is marked as the first batch of maintenance personnel, and priority maintenance lamps are assigned; when the priority value of the maintenance personnel is within the set priority threshold interval, the maintenance personnel is marked as the second batch of maintenance personnel, and the second priority maintenance lamps are assigned; when the priority value of the maintenance personnel is less than the minimum value of the set priority threshold interval, the maintenance personnel is marked as the third batch of maintenance personnel, and regular maintenance lamps are assigned;

[0070] When the first batch of maintenance personnel receive maintenance instructions for priority maintenance lamps, they are matched according to the distance between the priority maintenance lamps and the maintenance center from near to far, and the status of the first batch of maintenance personnel is changed to the maintenance status. After the maintenance is completed, the maintenance personnel upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the maintenance personnel, update the professional skill score, and re-add them to the list of maintenance personnel for matching; if the maintenance tasks of the priority maintenance lamps are insufficient, some of the second priority maintenance lamps will be supplemented and allocated; when the second batch of maintenance personnel receive maintenance instructions for the second priority maintenance lamps, they are matched according to the failure frequency of the second priority maintenance lamps from large to small, and the status of the second batch of maintenance personnel is changed to the maintenance status. After the maintenance is completed, the maintenance personnel upload the maintenance completion instruction to the cloud The service platform increases the historical maintenance times of the personnel to be maintained by one and updates the professional skill score, and re-adds them to the list of personnel to be maintained for matching; if the second priority maintenance lamp tasks are insufficient, some routine maintenance lamp tasks will be supplemented; when the third batch of personnel to be maintained receive the maintenance instructions for routine maintenance lamps, they will be matched according to the comprehensive fault scores of the routine maintenance lamps from large to small, and the status of the third batch of personnel to be maintained will be changed to the maintenance status. After the maintenance is completed, the personnel to be maintained will upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the personnel to be maintained by one and update the professional skill score, and re-add them to the list of personnel to be maintained for matching; if there is extra time or the task is urgent, assist the first or second batch of personnel to complete the high priority tasks; the calculation steps of the professional skill score are as follows:

[0071] The total maintenance time of the maintenance personnel is counted, and the average is calculated according to the number of maintenance times to obtain the average maintenance time of the maintenance personnel, which is recorded as Un; the maximum number of historical maintenance times among all maintenance personnel is obtained and recorded as B 最大值 , using the formula Calculate the maintenance experience value of the maintenance personnel Average maintenance time Un and maintenance experience value Substitute the set formula The professional skill score Fn of the maintenance personnel is calculated, where c5 and c6 are the set weight factors. It can be seen from the formula that the shorter the average maintenance time of the maintenance personnel, the higher the professional skill score; the more maintenance times the maintenance personnel perform, the greater the maintenance experience value of the maintenance personnel, and the higher the professional skill score;

[0072] By combining the maintenance task priority with the maintenance personnel priority value, the most suitable maintenance personnel can be effectively matched to ensure that higher priority faults are handled in a timely manner. Multiple factors such as distance, fault frequency, and comprehensive score are used to optimize the task allocation order and improve efficiency. After the maintenance is completed, the maintenance personnel's historical maintenance times and professional skill scores are updated in real time to ensure that the scores always reflect the latest status, providing a reliable basis for subsequent task allocation. If there are insufficient high-priority tasks, they can be flexibly adjusted to allocate secondary priority or regular tasks to avoid idle resources.

[0073] According to an embodiment of the present invention, Figure 2 As shown, a street lamp fault analysis method based on the Internet of Things is also provided, and the method includes the following steps:

[0074] S1: Collect the operating status data of street lamps in real time through sensors, and send the collected data to the cloud service platform for storage;

[0075] S2: Real-time monitoring of the operating status of street lamps and analyzing them to obtain fault values ​​and fault frequencies;

[0076] S3: Analyze the operating data of the street lamps to obtain a comprehensive fault score and send maintenance instructions to S4;

[0077] The current value Lij and the current value threshold deviation value ΔL 阈值 , voltage value Yij, voltage threshold deviation range ΔY 阈值 , temperature value Wij, temperature threshold deviation range ΔW 阈值 , humidity value Dij, humidity threshold deviation range ΔD 阈值 , light intensity Gij and light intensity threshold deviation range ΔG 阈值 Substitute the value of into the formula

[0078] The deviation evaluation value Rij of the street lamp is calculated, where a1, a2, a3, a4 and a5 are respectively set weight factors; it can be seen from the formula that the greater the difference between the current value of the street lamp and the set current threshold, the greater the evaluation value; the greater the difference between the voltage value of the street lamp and the set voltage threshold, the greater the evaluation value; the greater the difference between the temperature value of the street lamp and the set temperature threshold, the greater the evaluation value; the greater the difference between the humidity value of the street lamp and the set humidity threshold, the greater the evaluation value; the greater the difference between the light intensity value of the street lamp and the set light intensity threshold, the greater the evaluation value;

[0079] Substitute the values ​​of the recent fault frequency Pi of the street lamp and the deviation evaluation value Rij of the street lamp into the set formula The comprehensive fault score Kij of the street lamp is calculated, where b1, b2 and b3 are the set weight factors, and λ is the set correction factor. It can be seen from the formula that the higher the recent fault frequency of the street lamp, the higher the comprehensive fault score; the greater the deviation evaluation value of the street lamp, the higher the comprehensive fault score; the more historical faults of the street lamp, the higher the comprehensive fault score; where Hi is the historical fault value, the specific calculation formula is: The more historical failures a street lamp has, the greater the historical failure value;

[0080] A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the comprehensive fault score of the street lamp is less than or equal to the set comprehensive fault score threshold, it means that the street lamp is operating normally, no maintenance is required, and monitoring continues;

[0081] S4: Allocate maintenance tasks according to the maintenance priority of the faulty street light fixtures.

[0082] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A street lamp fault analysis system based on the Internet of Things, comprising a data monitoring module, a fault analysis module and an early warning management module; characterized in that: The data monitoring module is used for real-time monitoring of the operating status of street lamps and analyzes them to obtain fault values ​​and fault frequencies; The fault analysis module is used to analyze the operating data of the street lamps to obtain a comprehensive fault score and send maintenance instructions to the maintenance management module; The specific steps are as follows: The recent fault frequency of the street lamp, the deviation evaluation value of the street lamp and the historical fault value are normalized to obtain the comprehensive fault score of the street lamp; A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; The maintenance management module is used to allocate maintenance tasks according to the maintenance priorities of faulty street lamps.

2. According to the Internet of Things-based street lamp fault analysis system of claim 1, it is characterized in that: It also includes data collection module and cloud service platform; The data acquisition module is used to collect the operating status data of street lamps in real time through sensors, and send the collected data to the cloud service platform for storage; The sensors equipped include current sensor, voltage sensor, temperature sensor, humidity sensor and light intensity sensor; The operating status data of street lamps include: current, voltage, temperature, humidity and light intensity; The cloud service platform is used to store data collected from various sensors, including real-time data and historical data.

3. According to the Internet of Things-based street lamp fault analysis system of claim 1, it is characterized in that: The specific analysis steps of the fault value are: Get the current value of the street lamp, set a current threshold, set the rated current of the street lamp as the current threshold, and set the allowable deviation value of the current threshold; set a voltage threshold, set the rated voltage of the street lamp as the voltage threshold, and set the allowable deviation value of the voltage threshold; get the working temperature of the street lamp; set a working temperature threshold of the street lamp, and set the allowable deviation value of the temperature threshold; get the working humidity of the street lamp; set a working humidity threshold of the street lamp, and set the allowable deviation value of the temperature threshold; get the light intensity of the street lamp; Set a light intensity threshold and set the allowable deviation value of the temperature threshold; normalize the current value, current threshold deviation value, voltage value, voltage threshold deviation value, temperature value, temperature threshold deviation value, humidity value, humidity threshold deviation value, light intensity and light intensity threshold deviation value to obtain the fault value of the street light fixture; when the fault value of the street light fixture is equal to zero, it indicates that the street light fixture is operating normally and no maintenance is required; when the fault value of the street light fixture is not equal to zero, it indicates that the street light fixture has a fault, and it is marked as a priority maintenance fixture, and an immediate maintenance instruction is sent to the maintenance management module.

4. The street lamp fault analysis system based on the Internet of Things according to claim 1 is characterized in that: The specific analysis steps of fault frequency are as follows: Obtain the proportion of street lamp failures within a certain time window, i.e., the failure frequency; set a failure frequency threshold, compare and analyze the failure frequency of the street lamp with the set failure frequency threshold; when the failure frequency of the street lamp is greater than the set failure frequency threshold, the street lamp is a high-frequency failure street lamp, and it is marked as a second-priority maintenance lamp, and a maintenance instruction is sent to the maintenance management module; When the fault frequency of the street lamp is less than or equal to the set fault frequency threshold, the street lamp is in normal operation and continues to be monitored.

5. The street lamp fault analysis system based on the Internet of Things according to claim 1 is characterized in that: The specific analysis steps of the deviation evaluation value of street lamps are as follows: The values ​​of current value, current value threshold deviation value, voltage value, voltage threshold deviation range, temperature value, temperature threshold deviation range, humidity value, humidity threshold deviation range, light intensity and light intensity threshold deviation range are normalized to obtain the deviation evaluation value of the street lamp.

6. The street lamp fault analysis system based on the Internet of Things according to claim 1, characterized in that: Maintenance tasks are assigned according to the maintenance priority of the faulty street lamps. The specific steps are as follows: When the first batch of maintenance personnel receive maintenance instructions for priority lamps, they will be matched according to the priority lamp list, and the status of the first batch of maintenance personnel will be changed to the maintenance status. After the maintenance is completed, the maintenance personnel will upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the maintenance personnel, update the professional skill score, and re-add them to the list of maintenance personnel for matching; if the maintenance tasks of the priority lamps are insufficient, some of the secondary priority lamp maintenance tasks will be supplemented; When the second batch of maintenance personnel receive the maintenance instructions for the second priority lamps, they will be matched according to the second priority lamp list, and the status of the second batch of maintenance personnel will be changed to the maintenance status. After the maintenance is completed, the maintenance personnel will upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the maintenance personnel, update the professional skill score, and re-add them to the list of maintenance personnel for matching; if the second priority lamp maintenance tasks are insufficient, some regular lamp maintenance tasks will be assigned; When the third batch of maintenance personnel receive maintenance instructions for regular maintenance lamps, they will match them according to the list of regular maintenance lamps, and change the status of the third batch of maintenance personnel to the maintenance status. After the maintenance is completed, the maintenance personnel will upload the maintenance completion instruction to the cloud service platform, increase the historical maintenance times of the maintenance personnel by one, update the professional skill score, and re-add them to the list of maintenance personnel for matching; if there is extra time or the task is urgent, assist the first or second batch of personnel to complete high-priority tasks.

7. The street lamp fault analysis system based on the Internet of Things according to claim 6, characterized in that: The analysis steps for maintenance priority are: Obtain information on priority maintenance lamps, second priority maintenance lamps, regular maintenance lamps and lamps that do not require maintenance, and mark the priority maintenance lamps, second priority maintenance lamps and regular maintenance lamps as lamps to be maintained; calculate the distance between the location of the priority maintenance lamps and the location of the maintenance center to obtain the distance value of the street lamps, and sort the priority maintenance lamps from small to large according to the distance value, and send them to the maintenance center; sort the second priority maintenance lamps from large to small according to the fault frequency, and send them to the maintenance center; sort the regular maintenance lamps from large to small according to the comprehensive fault score, and send them to the maintenance center.

8. The street lamp fault analysis system based on the Internet of Things according to claim 6, characterized in that: The analysis steps for the batch of personnel to be maintained are: Obtain the personnel information of the maintenance personnel in the maintenance center, including name, age, length of service, number of historical maintenance times, professional skill rating and geographic location; The distance between the current geographical location of the backstage maintenance personnel and the location of the street lamp to be maintained is calculated to obtain the location value; the working years, location value, historical maintenance times and professional skill score of the backstage maintenance personnel are normalized to obtain the priority value of the backstage maintenance personnel; A priority value threshold interval is set for the background maintenance personnel, and the priority value of the background maintenance personnel is compared and analyzed with the set priority threshold interval. When the priority value of the maintenance personnel is greater than the maximum value of the set priority threshold interval, the maintenance personnel is marked as the first batch of personnel to be maintained, and priority maintenance lamps are assigned; when the priority value of the maintenance personnel is within the set priority threshold interval, the maintenance personnel is marked as the second batch of personnel to be maintained, and second priority maintenance lamps are assigned; when the priority value of the maintenance personnel is less than the minimum value of the set priority threshold interval, the maintenance personnel is marked as the third batch of personnel to be maintained, and regular maintenance lamps are assigned.

9. The street lamp fault analysis system based on the Internet of Things according to claim 8, characterized in that: The specific analysis steps for professional skills scoring are as follows: The total maintenance time of the maintenance personnel is counted, and the average maintenance time of the maintenance personnel is calculated by the maintenance times. The maximum value of the historical maintenance times among all maintenance personnel is obtained, and the proportion of the current maintenance personnel's historical maintenance times to the maximum value of the historical maintenance times among all maintenance personnel is calculated and recorded as the maintenance experience value. The average maintenance time and the maintenance experience value are normalized to obtain the professional skill score of the maintenance personnel.

10. A street lamp fault analysis method based on the Internet of Things, characterized in that A street lamp fault analysis system based on the Internet of Things as described in any one of claims 1 to 9, comprising the following steps: S1: Collect the operating status data of street lamps in real time through sensors, and send the collected data to the cloud service platform for storage; S2: Real-time monitoring of the operating status of street lamps and analyzing them to obtain fault values ​​and fault frequencies; S3: Analyze the operating data of the street lamp to obtain a comprehensive fault score, and send a maintenance instruction to step S4; Normalizing the values ​​of the current value, the current value threshold deviation value, the voltage value, the voltage threshold deviation range, the temperature value Wij, the temperature threshold deviation range, the humidity value, the humidity threshold deviation range, the light intensity, and the light intensity threshold deviation range to obtain a deviation evaluation value of the street lamp; The recent fault frequency, historical fault value and deviation evaluation value of the street lamp are normalized to obtain the comprehensive fault score of the street lamp; A comprehensive fault score threshold is set, and the comprehensive fault score of the street lamp is compared with the set comprehensive fault score threshold. When the comprehensive fault score of the street lamp is greater than the set comprehensive fault score threshold, the street lamp has a potential fault risk, and it is marked as a regular maintenance lamp, and a maintenance instruction is sent to the maintenance management module; when the comprehensive fault score of the street lamp is less than or equal to the set comprehensive fault score threshold, it means that the street lamp is operating normally, no maintenance is required, and monitoring continues; S4: Allocate maintenance tasks according to the maintenance priority of the faulty street light fixtures.

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