Charging pile spontaneous combustion prevention system based on electric spark monitoring

Abstract

The invention relates to the technical field of charging pile monitoring, and discloses a charging pile spontaneous combustion prevention system based on electric spark monitoring, and the system comprises a charging line monitoring module which is used for monitoring the state of a charging line, and obtaining and storing the monitoring data of the charging line; the analysis control module is used for analyzing the charging line monitoring data, judging whether the charging line needs to be replaced or not according to an analysis result, monitoring the state of the charging line through the charging line monitoring module, and obtaining and storing the charging line monitoring data; charging line monitoring data are analyzed through the analysis control module, the actual line loss coefficient and the real-time abnormal index are obtained, whether the charging line needs to be replaced or not is judged according to the actual line loss coefficient and the real-time abnormal index, and a worker can directly overhaul or replace the charging line according to a result; manual judgment after detection of the charging wire is not needed, so that the processing time is shortened, and the charging pile can be recovered to be used as soon as possible; fire disasters caused by electric sparks due to damage of the charging wire are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of charging pile monitoring, and in particular to a charging pile spontaneous combustion prevention system based on electric spark monitoring. Background Art

[0002] With the popularization of new energy vehicles, the new energy charging infrastructure has gradually improved. Charging stations have been established in many places such as communities, parking lots, supermarkets, shopping malls and highways. There are multiple charging piles in the charging stations to charge new energy vehicles.

[0003] The charging pile includes a pile body, a charging cable and a charging gun. When charging, park the new energy vehicle near the pile body, insert the charging gun into the charging port of the new energy vehicle, and then scan the code to confirm charging. The pile body charges the new energy vehicle through the charging cable and the charging gun.

[0004] Because many cars are charged every day, the charging cables are repeatedly bent and pulled, causing damage to the charging cables. The staff cannot monitor the charging cables in real time. After the charging cables are damaged, they may continue to be used. The damaged charging cables may generate electric sparks during the charging process, causing spontaneous combustion and fire. In addition, the staff need to inspect the charging cables and manually determine whether they need to be replaced, which takes a long time and the charging piles cannot be put into use again in a timely and quick manner. Summary of the invention

[0005] The purpose of the present invention is to provide a charging pile anti-spontaneous combustion system based on electric spark monitoring to solve the following technical problems: How to detect abnormalities in the charging cable in time.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A charging pile anti-spontaneous combustion system based on electric spark monitoring, the charging pile anti-spontaneous combustion system comprising: Charging line monitoring module, used to monitor the status of the charging line, obtain and save the charging line monitoring data; The analysis control module is used to analyze the monitoring data of the charging cable, obtain the actual line loss coefficient and the real-time abnormality index, and determine whether the charging cable needs to be replaced based on the actual line loss coefficient and the real-time abnormality index.

[0007] As a further solution of the present invention: the charging line monitoring module includes a tension monitoring module and a charging monitoring module; the charging line monitoring data includes the number of charging times, the charging time and the tension value of the charging line.

[0008] As a further solution of the present invention: the process of determining whether the charging cable needs to be replaced includes: S1: The actual line loss coefficient is obtained by analyzing the number of charging times, charging time and the tension on the charging line; S2: Rating the status of the charging cable by the actual line loss coefficient; S3: Determine whether the charging cable needs to be replaced according to the rating result of the charging cable.

[0009] As a further solution of the present invention: in step S1, by formula: ; Calculate the actual line loss factor , in, n The number of times the charging cable has been charged; This charging cable n The pulling force on the charging cable during the first charge; This charging cable n Charging time per charge; The preset tension value for charging this charging cable; The preset duration of a single charge for this charging cable; This charging cable n Preset line loss coefficient for each charge; ; is the third preset constant; is the third weight coefficient; is the fourth weight coefficient; is the judgment function, when hour, , is the unit coefficient; when hour, .

[0010] As a further solution of the present invention: the rating results of the status of the charging cable include level one, level two and level three.

[0011] As a further solution of the present invention: in step S2, the process of rating the state of the charging cable is rating; the rating process includes: The actual line loss coefficient With preset threshold For comparison, ; when , the rating result of the charging cable is level one; when , the charging cable rating result is level 2; when , the charging cable rating result is level three.

[0012] As a further solution of the present invention: the charging line monitoring module includes a thermal imaging module for acquiring thermal imaging image data during the charging process of the charging line; In step S3, the process of determining whether the charging cable needs to be replaced includes: When the charging cable rating result is level one, the charging cable is in good condition and has no abnormalities, and does not need to be replaced; When the rating result of the charging cable is level 2, the charging cable is in general condition. The thermal imaging module is started to monitor the charging cable in real time during the charging process, analyze the thermal imaging image data, obtain the real-time abnormality index of the charging cable, and determine whether to replace the charging cable based on the real-time abnormality index; When the rating result of the charging cable is level three, the charging cable is in poor condition and needs to be replaced.

[0013] As a further solution of the present invention: the analysis process of the thermal imaging image data is as follows; S10: identifying a charging line area in the thermal imaging image data by analyzing the control module; S20: Calculating the area of ​​the charging line region and the area in the charging line region exceeding a preset temperature; S30: Obtaining the highest temperature in the charging line area and calculating the area of ​​the highest temperature; S40: Obtain a real-time abnormality index by analyzing the area of ​​the charging line region, the area of ​​the charging line region exceeding the preset temperature, the highest temperature in the charging line region, and the area of ​​the highest temperature.

[0014] As a further solution of the present invention: the real-time abnormality index is obtained by the formula: ; in, is the real-time anomaly index; is the preset temperature; The real-time maximum temperature of the charging cable; The area of ​​the real-time maximum temperature of the charging cable; The area in the charging cable area that exceeds the preset temperature; is the area of ​​the charging line; is the first preset constant; is the second preset constant; is the first weight coefficient; is the second weight coefficient.

[0015] Beneficial effects of the present invention: The present invention monitors the state of the charging line through the charging line monitoring module, obtains and saves the charging line monitoring data; analyzes the charging line monitoring data through the analysis control module, and judges whether the charging line needs to be replaced according to the analysis result; and timely finds the abnormality of the charging line according to the charging line monitoring data, and quickly judges whether the charging line needs to be replaced. The staff can directly repair or replace it according to the result, without having to detect the charging line and then make manual judgment, thus reducing the processing time and making the charging pile resume use as soon as possible; preventing the electric spark caused by the damage of the charging line from causing a fire; The present invention identifies the charging line area in the thermal imaging image data through an analysis control module; calculates the area of ​​the charging line area and the area in the charging line area that exceeds a preset temperature; obtains the highest temperature in the charging line area and calculates the area of ​​the highest temperature; obtains a real-time abnormality index by analyzing the area of ​​the charging line area, the area in the charging line area that exceeds a preset temperature, the highest temperature in the charging line area, and the area of ​​the highest temperature, so that the temperature of each section of the charging line can be monitored in real time when the charging line is kept in any state, so that the real-time abnormality index calculation is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 A system module framework diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1 As shown, in one embodiment, a charging pile spontaneous combustion prevention system based on electric spark monitoring is provided, comprising: Charging line monitoring module, used to monitor the status of the charging line, obtain and save the charging line monitoring data; An analysis control module is used to analyze the monitoring data of the charging cable, obtain the actual line loss coefficient and the real-time abnormal index, and determine whether the charging cable needs to be replaced according to the actual line loss coefficient and the real-time abnormal index; Through the above technical scheme, this embodiment monitors the status of the charging cable through the charging cable monitoring module, obtains and saves the charging cable monitoring data; analyzes the charging cable monitoring data through the analysis control module, obtains the actual line loss coefficient and the real-time abnormality index, and judges whether the charging cable needs to be replaced according to the actual line loss coefficient and the real-time abnormality index; and promptly detects the abnormality of the charging cable according to the charging cable monitoring data, and quickly judges whether the charging cable needs to be replaced. The staff can directly repair or replace it according to the results, without having to detect the charging cable and then make manual judgments, thereby reducing processing time and allowing the charging pile to be restored to use as soon as possible; preventing fires caused by electric sparks caused by damaged charging cables.

[0020] As an embodiment of the present invention, the charging line monitoring module includes a tension monitoring module and a charging monitoring module; the charging line monitoring data includes the number of charging times, the charging time and the tension value of the charging line; Through the above technical solution, this embodiment sets a tension monitoring module at the connection between the charging line and the pile body. The specific tension monitoring module is a tension sensor. The charging monitoring module is set on the pile body to obtain the number of charging times and the corresponding charging time.

[0021] As an implementation manner of the present invention, the process of determining whether the charging cable needs to be replaced includes: S1: The actual line loss coefficient is obtained by analyzing the number of charging times, charging time and the tension on the charging line; S2: Rating the status of the charging cable by the actual line loss coefficient; S3: Determine whether the charging cable needs to be replaced according to the rating result of the charging cable.

[0022] Through the above technical solution, this embodiment obtains the actual line loss coefficient by analyzing the number of charging times, charging time and the tension on the charging cable; then rates the status of the charging cable according to the actual line loss coefficient; finally, determines whether the charging cable needs to be replaced based on the rating result of the charging cable.

[0023] As an implementation mode of the present invention, in step S1, the formula: ; Calculate the actual line loss factor , in, n The number of times the charging cable has been charged; This charging cable n The pulling force on the charging cable during the first charge; This charging cable n Charging time per charge; The preset tension value for charging this charging cable; The preset duration of a single charge for this charging cable; This charging cable n Preset line loss coefficient for each charge; ; is the third preset constant; is the third weight coefficient; is the fourth weight coefficient; is the judgment function, when hour, , is the unit coefficient; when hour, .

[0024] Through the above technical solution, this embodiment This charging cable n The difference between the tension value of the charging cable during the first charge and the preset tension value. , explain n When charging for the first time, the tension on the charging cable is greater than the preset tension value, which may cause damage to the charging cable. For charging cable n The difference between the tension value of the charging cable and the preset tension value is greater than the accumulated value of the tension difference. The greater the accumulated value of the tension difference, the greater the actual line loss coefficient. The bigger; This charging cable n The difference between the charging time of the second charge and the preset time of a single charge, when , explain n If the charging time is longer than the preset time, the charging cable may be damaged. For charging cable n The cumulative value of the time difference when the difference between the charging time of the charging line and the preset time is greater than zero; the larger the cumulative value of the time difference, the higher the actual line loss coefficient The bigger.

[0025] It should be noted that the preset tension value of this charging cable during charging 、The preset time of a single charge of this charging cable 、This charging cable n Preset line loss coefficient for each charge ; The third preset constant , the third weight coefficient and the fourth weight coefficient It is a preset value obtained based on experience and will not be described in detail here.

[0026] As an embodiment of the present invention, the status rating results of the charging cable include level one, level two and level three; In step S2, the process of rating the status of the charging cable is rating; the rating process includes: The actual line loss coefficient With preset threshold For comparison, ; when , the rating result of the charging cable is level one; when , the charging cable rating result is level 2; when , the charging cable rating result is level three.

[0027] The charging line monitoring module includes a thermal imaging module for acquiring thermal imaging image data during the charging process of the charging line; In step S3, the process of determining whether the charging cable needs to be replaced includes: When the charging cable rating result is level one, the charging cable is in good condition and has no abnormalities, and does not need to be replaced; When the rating result of the charging cable is level 2, the charging cable is in general condition. The thermal imaging module is started to monitor the charging cable in real time during the charging process, analyze the thermal imaging image data, obtain the real-time abnormality index of the charging cable, and determine whether to replace the charging cable based on the real-time abnormality index; When the charging cable rating result is level three, the charging cable is in poor condition and needs to be replaced; Through the above technical solution, this embodiment uses the actual line loss coefficient With preset threshold For comparison, ;when , indicating that the charging cable is in good condition, no abnormality, and no need to be replaced; the charging cable rating result is level one; when , the rating result of the charging cable is level 2; the charging cable is in general condition, the thermal imaging module is started, the charging cable is monitored in real time during the charging process, the thermal imaging image data is analyzed, the real-time abnormality index of the charging cable is obtained, and the real-time abnormality index is used to determine whether to replace the charging cable; when , the charging cable is in poor condition and the charging cable rating result is level three. The charging cable needs to be replaced.

[0028] It should be noted that the preset threshold It is a preset value obtained based on experience and will not be described in detail here.

[0029] As an embodiment of the present invention, the analysis process of thermal imaging image data is as follows: S10: identifying a charging line area in the thermal imaging image data by analyzing the control module; S20: Calculating the area of ​​the charging line region and the area in the charging line region exceeding a preset temperature; S30: Obtaining the highest temperature in the charging line area and calculating the area of ​​the highest temperature; S40: obtaining a real-time abnormality index by analyzing the area of ​​the charging line region, the area in the charging line region exceeding a preset temperature, the highest temperature in the charging line region, and the area of ​​the highest temperature; Through the above technical scheme, this embodiment identifies the charging line area in the thermal imaging image data through the analysis control module; calculates the area of ​​the charging line area and the area in the charging line area that exceeds the preset temperature; obtains the highest temperature in the charging line area and calculates the area of ​​the highest temperature; obtains the real-time abnormality index by analyzing the area of ​​the charging line area, the area in the charging line area that exceeds the preset temperature, the highest temperature in the charging line area, and the area of ​​the highest temperature, so that the temperature of each section of the charging line can be monitored in real time when the charging line is kept in any state, so that the real-time abnormality index calculation is more accurate.

[0030] As an embodiment of the present invention, the real-time abnormality index is calculated by the formula: ; in, is the real-time anomaly index; is the preset temperature; The real-time maximum temperature of the charging cable; The area of ​​the real-time maximum temperature of the charging cable; The area in the charging cable area that exceeds the preset temperature; is the area of ​​the charging line; is the first preset constant; is the second preset constant; is the first weight coefficient; is the second weight coefficient.

[0031] The process of determining whether to replace the charging cable based on the real-time abnormality index is as follows: Real-time anomaly index With the preset abnormal index Make a comparison; when The charging cable needs to be replaced; when The charging cable needs to be repaired, not replaced.

[0032] Through the above technical solution, this embodiment The ratio of the area in the charging cable area that exceeds the preset temperature to the area of ​​the charging cable area. The larger the area ratio, the higher the real-time abnormality index. The bigger; is the temperature difference between the real-time maximum temperature and the preset temperature of the charging cable; When the temperature difference is greater, the charging cable is abnormal; the greater the temperature difference, the higher the real-time abnormality index The larger the area of ​​the real-time maximum temperature of the charging cable, the higher the real-time abnormality index. The larger the real-time abnormality index With the preset abnormal index To compare; when When the charging cable is seriously abnormal, the charging cable needs to be replaced; If the abnormality is detected, it means that the charging cable is not seriously abnormal and needs to be repaired but not replaced. The staff can directly repair or replace the charging cable based on the result. There is no need to test the charging cable and then make manual judgment, which reduces the processing time and allows the charging pile to be put back into use as soon as possible.

[0033] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A charging pile anti-spontaneous combustion system based on electric spark monitoring, characterized in that: The charging pile anti-spontaneous combustion system comprises: Charging line monitoring module, used to monitor the status of the charging line, obtain and save the charging line monitoring data; The analysis control module is used to analyze the monitoring data of the charging cable, obtain the actual line loss coefficient and the real-time abnormality index, and determine whether the charging cable needs to be replaced based on the actual line loss coefficient and the real-time abnormality index.

2. According to claim 1, a charging pile anti-spontaneous combustion system based on electric spark monitoring is characterized in that: The charging cable monitoring module includes a tension monitoring module and a charging monitoring module; the charging cable monitoring data includes the number of charging times, the charging time and the tension value of the charging cable.

3. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 2 is characterized in that: The process of determining whether the charging cable needs to be replaced includes: S1: The actual line loss coefficient is obtained by analyzing the number of charging times, charging time and the tension on the charging line; S2: Rating the status of the charging cable by the actual line loss coefficient; S3: Determine whether the charging cable needs to be replaced according to the rating result of the charging cable.

4. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 3 is characterized in that: In step S1, the formula: ； Calculate the actual line loss factor , in, n The number of times the charging cable has been charged; This charging cable n The pulling force on the charging cable during the first charge; This charging cable n Charging time per charge; The preset tension value for charging this charging cable; The preset duration of a single charge for this charging cable; This charging cable n Preset line loss coefficient for each charge; ; is the third preset constant; is the third weight coefficient; is the fourth weight coefficient; is the judgment function, when hour, , is the unit coefficient; when hour, .

5. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 4 is characterized in that: The charging cable status rating results include level one, level two and level three.

6. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 5 is characterized in that: In step S2, the process of rating the status of the charging cable includes: The actual line loss coefficient With preset threshold For comparison, ; when , the rating result of the charging cable is level one; when , the charging cable rating result is level 2; when , the charging cable rating result is level three.

7. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 6 is characterized in that: The charging line monitoring module includes a thermal imaging module for acquiring thermal imaging image data during the charging process of the charging line; In step S3, the process of determining whether the charging cable needs to be replaced includes: When the charging cable rating result is level one, the charging cable is in good condition and has no abnormalities, and does not need to be replaced; When the rating result of the charging cable is level 2, the charging cable is in general condition. The thermal imaging module is started to monitor the charging cable in real time during the charging process, analyze the thermal imaging image data, obtain the real-time abnormality index of the charging cable, and determine whether to replace the charging cable based on the real-time abnormality index; When the rating result of the charging cable is level three, the charging cable is in poor condition and needs to be replaced.

8. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 7 is characterized in that: The analysis process of thermal imaging image data is as follows; S10: identifying a charging line area in the thermal imaging image data by analyzing the control module; S20: Calculating the area of ​​the charging line region and the area in the charging line region exceeding a preset temperature; S30: Obtaining the highest temperature in the charging line area and calculating the area of ​​the highest temperature; S40: Obtain a real-time abnormality index by analyzing the area of ​​the charging line region, the area of ​​the charging line region exceeding the preset temperature, the highest temperature in the charging line region, and the area of ​​the highest temperature.

9. The charging pile anti-spontaneous combustion system based on electric spark monitoring according to claim 8, characterized in that: The real-time anomaly index is calculated by the formula: ； in, is the real-time anomaly index; is the preset temperature; The real-time maximum temperature of the charging cable; The area of ​​the real-time maximum temperature of the charging cable; The area in the charging cable area that exceeds the preset temperature; is the area of ​​the charging line; is the first preset constant; is the second preset constant; is the first weight coefficient; is the second weight coefficient.

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