Firework detection and monitoring system for new energy automobile charging station

Abstract

The application discloses a new energy automobile charging station fire detection monitoring system and relates to the technical field of intelligent monitoring.The system comprises a front-end device, a supervision background and a communication module for data connection between the front-end device and the supervision background.The front-end device comprises a camera and a smoke detector.The camera's field of view covers a region to be supervised of the charging station.The region to be supervised is provided with a smoke verification system.The smoke verification system comprises a pipeline structure located at the side of a charging spot and a gas extraction unit connected with the pipeline structure.The smoke detector is installed on the pipeline structure and located on the gas path of the gas extraction unit.The supervision background is data-connected with the gas extraction unit through the communication module.The application has the effect of reducing the probability of causing significant economic losses due to fire in the new energy automobile charging station.

Description

Technical Field

[0001] The present application relates to the field of intelligent monitoring technology, and in particular to a smoke and fire detection monitoring system for a new energy vehicle charging station. Background Art

[0002] With the promotion of new energy vehicle technology and the maturation of upstream and downstream supply chains, the price gap between new energy vehicles and fuel vehicles is gradually narrowing. Furthermore, because new energy vehicles run on electricity and require little maintenance, they are becoming increasingly advantageous, leading more and more residents to choose new energy vehicles as their means of transportation. As the number of new energy vehicles increases, the demand for supporting facilities such as new energy vehicle charging stations is also increasing.

[0003] Because the battery charging process generates heat, and the quality of some manufacturers' products needs improvement, some vehicles at charging stations are at risk of spontaneous combustion. This not only harms the interests of vehicle owners, but because charging is a lengthy process, often at public charging stations, it can also ignite other nearby vehicles and facilities, causing financial losses to other vehicle owners and businesses. Therefore, a new technical solution is necessary. Summary of the Invention

[0004] In order to reduce the probability of significant economic losses caused by fires in new energy vehicle charging stations, the present application provides a fire and smoke detection and monitoring system for new energy vehicle charging stations.

[0005] This application provides a smoke and fire detection and monitoring system for new energy vehicle charging stations, which adopts the following technical solutions:

[0006] A smoke and fire detection and monitoring system for a new energy vehicle charging station, comprising:

[0007] It includes front-end equipment, a supervisory backend, and a communication module for connecting the front-end equipment and the supervisory backend with data;

[0008] The front-end equipment includes a camera and a smoke detector. The camera's field of view covers the area to be supervised in the charging station. The area to be supervised is equipped with a smoke verification system. The smoke verification system includes a pipeline structure located on the side of the charging parking space and an exhaust unit connected to the pipeline structure. The smoke detector is installed in the pipeline structure and is located on the air path of the exhaust unit. The supervision backend is connected to the exhaust unit via communication module data.

[0009] The supervisory backend configuration is as follows:

[0010] Acquire images of the area to be supervised and perform smoke and flame recognition on the images;

[0011] If the smoke identification result meets the predefined suspected fire conditions, the exhaust unit operation control instruction is output and the smoke detection information of the smoke detector is obtained;

[0012] If the smoke detection information meets the predefined fire conditions, a fire warning message is output.

[0013] Optionally, the pipeline structure includes a support rod and a smoke pipe, the smoke pipe extends along the edge of each charging parking space and forms a U-shaped structure, and the smoke pipe opening of the U-shaped structure faces the entrance and exit of the parking space; the support rods are multiple and vertically arranged, the lower end of the smoke pipe is fixed to the ground, and the upper end is fixed to the smoke pipe; the side wall of the smoke pipe is provided with multiple through holes, the smoke pipe is connected to the main pipeline, the end of the main pipeline away from the smoke pipe is sleeved with a detection pipe, the other end of the detection pipe is connected to the air inlet port of the exhaust unit, and the probe of the smoke detector is inserted into the detection pipe;

[0014] A stop valve is installed before / after each corner of the flue gas pipe, and the stop valve is connected to a communication module, which includes an intelligent gateway;

[0015] The supervisory backend configuration is as follows:

[0016] Locate the suspected fire location based on the image to obtain positioning data;

[0017] Search the pre-stored valve position relationship data according to the positioning data to obtain the matching valve position;

[0018] According to the valve position, the corresponding shut-off valve opening instruction and exhaust opening instruction are sent to the intelligent gateway.

[0019] Optionally, at least the pipe section of the smoke pipe located between two adjacent support rods is a telescopic pipe structure.

[0020] Optionally, the supervision background data is connected to the controller of the charging pile and is configured as follows:

[0021] If fire warning information is output, the fire situation is classified according to the preset fire situation classification rules;

[0022] If the current fire level meets the local power outage conditions, a power-off control command is sent to the controller of the charging pile corresponding to the fire location;

[0023] If the current fire level meets the conditions for all power outages, a power outage control instruction is sent to the controllers of all charging piles in the charging station.

[0024] Optionally, the camera is equipped with a visual effect switching mechanism, comprising a cover, a filter, and a driving mechanism. The cover is mounted on the camera and covers the front of the camera. The filters are multiple and stacked in front of the lens. The filter side is fixed with an ear plate, and the ear plate is fixed with a rotating shaft. The driving mechanism is used to drive each filter to rotate around the central axis of the rotating shaft.

[0025] The front-end device also includes a meteorological information collection module, the driving mechanism is connected to the communication module, and the supervision background is configured as follows:

[0026] Get local weather information;

[0027] Search pre-recorded filter and environment relationship data based on meteorological information to obtain matching filters;

[0028] A drive control instruction for controlling the drive control mechanism is sent according to the currently matched filter.

[0029] Optionally, each of the ear plates corresponds to a rotating shaft, and multiple rotating shafts are coaxial with the central axis, plugged into each other and rotatably connected; the outermost rotating shaft end is rotatably connected to the cover shell and the camera casing; the driving mechanism includes a motor and a gear group, and the number of the motors and gear groups is the same as the number of filters, and the gear group includes a gear fixed to the motor output shaft and another gear fixed to the rotating shaft, and the two gears in the same group are meshed with each other.

[0030] Optionally, the meteorological collection module includes a light intensity sensor, which is installed in the main pipeline with the detection part exposed. The air outlet of the air extraction unit is connected to a soot blowing nozzle through a pipeline. The soot blowing nozzle is fixed to the main pipeline and the air outlet is directed towards the detection part of the light intensity sensor.

[0031] Optionally, the supervision background is configured as follows: based on image analysis, the relationship between flame and smoke characteristics and the owner's behavior is determined, and whether it is a non-fire behavior scene. If so, flame and smoke recognition is returned; if not, smoke detection information of the smoke detector is obtained.

[0032] Optionally, the supervision backend is configured as follows: if the charging vehicle has a surrounding image function, it accesses the cloud corresponding to the vehicle and requests to obtain images taken by the vehicle for flame and smoke recognition.

[0033] To sum up, the present application includes the following beneficial technical effects: cameras can be used to monitor charging stations, and flames and smoke can be identified in the obtained monitoring images. When a suspected fire is found, the smoke verification system can be further used in conjunction with a smoke detector to verify whether a fire has occurred, so as to promptly discover the fire at the charging station, reduce the probability of major economic losses caused by a fire at a new energy vehicle charging station, and reduce misjudgments caused by people smoking, thereby improving the effectiveness of system use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is the overall structural diagram of this system;

[0035] Figure 2 This is a structural diagram of the smoke verification system of this system;

[0036] Figure 3 It is a structural diagram of the piping structure of this system;

[0037] Figure 4 This is a schematic diagram of the structure of the system after the visual effect switching mechanism is turned on;

[0038] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0039] Figure 6 Schematic diagram of soot blowing.

[0040] Explanation of the accompanying symbols: 1. Supervision background; 2. Communication module; 3. Camera; 4. Smoke detector; 5. Pipe structure; 51. Support rod; 52. Flue gas pipe; 53. Main pipeline; 54. Detection tube; 55. Stop valve; 6. Exhaust unit; 7. Visual effect switching mechanism; 71. Cover; 72. Filter; 721. Ear plate; 73. Driving mechanism; 8. Weather collection module; 9. Soot blower. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-6 This application is described in further detail.

[0042] The embodiments of the present application disclose a smoke and fire detection and monitoring system for a new energy vehicle charging station.

[0043] Reference Figure 1 and Figure 2 The smoke and fire detection and monitoring system of the new energy vehicle charging station includes front-end equipment, a supervision background 1 and a communication module 2. Among them, the supervision background 1 includes a cloud server and a PC device whose data is connected to the cloud server. It provides the main analysis and computing capabilities of the system and interacts with the staff.

[0044] The front-end equipment includes a camera 3 and a smoke detector 4. Camera 3 is mounted on a column within the charging station, with its lens facing the charging pile area. Camera 3's field of view is required to cover the station's monitored area, which consists of individual parking spaces. The number of cameras 3 can be one or more, depending on actual needs.

[0045] The area to be monitored is equipped with a smoke detection system, which includes a pipe structure 5 and an extraction unit 6. The pipe structure 5 is located to the side of the charging space, and the extraction unit 6 has an air inlet port connected to the pipe structure 5. A smoke detector 4 is installed on the pipe structure 5 and located in the air path of the extraction unit 6. The extraction unit 6 is connected to the extraction unit 6 via a communication module 2.

[0046] Based on the above, the configuration of the supervision background 1 is as follows:

[0047] Acquire images of the area to be supervised and perform smoke and flame recognition on the images;

[0048] If the smoke identification result meets the predefined suspected fire condition, the exhaust unit operation control instruction is output and the smoke detection information of the smoke detector 4 is obtained;

[0049] If the smoke detection information meets the predefined fire conditions, a fire warning message is output.

[0050] It is understood that the image of the monitored area is extracted from the video uploaded by camera 3. Smoke and flame identification in the image can be achieved through color and pixel blocks. Color, for example, identifies black smoke, white smoke, and yellow smoke; pixel blocks, for example, calculates the number, range, and direction of pixel blocks occupied by smoke features. Smoke and flame image recognition is a state-of-the-art technology and will not be further described. The predefined suspected fire conditions include: the presence of flame or smoke features within a specified range; and fire conditions, such as: the smoke concentration detected by smoke detector 4 exceeding a threshold.

[0051] According to the above content, this system can use camera 3 to monitor the charging station, identify flames and smoke in the obtained monitoring image, and when a suspected fire is found, further use the smoke verification system in conjunction with the smoke detector 4 to verify whether a fire has occurred, so as to promptly discover the fire at the charging station, reduce the probability of major economic losses caused by a fire at the new energy vehicle charging station, and reduce misjudgments caused by people smoking, thereby improving the effectiveness of system use.

[0052] Reference Figure 2 and Figure 3In one embodiment of this system, the pipe structure 5 includes a support rod 51 and a flue pipe 52. The flue pipe 52 extends along the edge of the charging parking space, forming a U-shaped structure. The opening of the U-shaped flue pipe 52 faces the parking space entrance and exit, ensuring that new energy vehicles can enter and exit the parking space without interference. The sidewalls of the flue pipe 52 are provided with multiple through-holes evenly distributed along its length, with at least one opening located between two adjacent parking spaces. It is important to note that two adjacent parking spaces share a single flue pipe 52, rather than two, because a single flue pipe 52 with openings on both sides can meet usage requirements, thus avoiding material waste.

[0053] Multiple vertical support rods 51 are arranged along the extension of the smoke pipe 52. The lower ends of the support rods 51 are anchored or fixed to the ground with ground nails, and the upper ends are fixed with sleeves, through which the smoke pipe 52 passes and is bonded. The height of the support rods 51 can range from 40-60 cm. This allows the smoke pipe 52 to be as close as possible to the initial height of smoke after a new energy vehicle fire, ensuring smooth smoke extraction. It also allows the driver to step over the smoke pipe 52 when necessary, meeting various practical needs.

[0054] Furthermore, at least the section of the flue pipe 52 between two adjacent struts 51 is a telescopic tube structure. That is, the section of the flue pipe 52 enclosed by the sleeve on the strut 51 is a non-telescopic tube structure, while the rest of the section is a bellows structure. This design offers the advantage that if a new energy vehicle accidentally deviates from its standard position and comes into contact with the flue pipe 52, neither is likely to be damaged, resulting in less financial loss and a better driver experience.

[0055] Reference Figure 2 The section of smoke pipe 52 near the rear of the parking space is connected to a main pipe 53. Main pipe 53 can be a plastic or metal pipe. It extends downward into a pre-cast underground equipment well or upward into an equipment box supported by stilts. A detection pipe 54 is sleeved on the end of main pipe 53 away from smoke pipe 52. The other end of detection pipe 54 is connected to the air inlet port of exhaust unit 6, which can be a small axial flow fan. Detection pipe 54 has a detection hole, into which the probe of smoke detector 4 is inserted.

[0056] A shut-off valve 55 is installed before / after each corner of the flue gas pipe 52. The shut-off valve 55 signal is connected to the communication module 2. In this embodiment, the communication module 2 can be an intelligent gateway with certain data analysis and response capabilities to improve the response efficiency of the system.

[0057] Based on the above, the configuration of the supervision background 1 is as follows:

[0058] Locate the suspected fire location based on the image to obtain positioning data;

[0059] Search the pre-stored valve position relationship data according to the positioning data to obtain the matching valve position;

[0060] According to the valve position, the corresponding shut-off valve opening instruction and exhaust opening instruction are sent to the intelligent gateway.

[0061] For example, regarding positioning, if the camera cannot be moved, the standard image can be divided into multiple blocks, and each block is manually verified to determine an actual location and record it. Afterwards, the real-time image is compared with the standard image to locate the block in which the smoke and flame features appear in the image, and positioning data can be obtained. It is understandable that different fire locations are close to different smoke pipes 52. If all smoke pipes 52 are enabled, the power required by the exhaust unit 6 is high, and the probability of smoke dilution is high, resulting in poor verification results. Therefore, the system also pre-stores which valve should be opened to enable the pipeline at each location, that is, pre-stores valve position relationship data, so that smoke verification can be performed from the location where the image recognizes a fire, thereby improving the accuracy of monitoring judgments.

[0062] In another embodiment of the system, in order to reduce the probability of the system misjudging when the owner smokes or engages in other behaviors at the charging station, the monitoring backend 1 is configured as follows:

[0063] Based on the image analysis, the relationship between the flame and smoke characteristics and the driver's behavior is determined, and whether it is a non-fire behavior scene is determined. If so, flame and smoke recognition is returned; if not, smoke detection information of the smoke detector 4 is obtained.

[0064] The above image-based analysis of the relationship between flame and smoke features and driver behavior includes the following examples: 1) flames are detected near the driver's hands; 2) flame and smoke features originate from the driver's head. These two relationships are for non-fire behavior scenarios.

[0065] Furthermore, in order to reduce the adverse effects of inadvertent misjudgments by the system, the supervisory backend 1 in this system is also digitally connected to the controller of the charging pile. If the charging pile does not have network access capabilities, the supervisory backend 1 can be connected to it through the communication module 2, which is installed in the control box, equipment well, etc. inside the charging pile. The supervisory backend 1 is configured as follows:

[0066] If fire warning information is output, the fire situation is classified according to the preset fire situation classification rules;

[0067] If the current fire level meets the local power outage conditions, a power-off control command is sent to the controller of the charging pile corresponding to the fire location;

[0068] If the current fire level meets the conditions for all power outages, a power outage control instruction is sent to the controllers of all charging piles in the charging station.

[0069] Fire classification rules include: 1) classifying fires based on smoke density, with multiple pre-defined concentration ranges corresponding to each level from low to high; or 2) classifying fires based on flame size, with multiple pre-defined flame size ranges corresponding to each level from small to large. Assuming fires are classified into three levels: large, medium, and small, partial power outages could be implemented for medium and small fires, while full power outages could be implemented for large fires.

[0070] According to the above settings, firstly, even if the system mistakenly judges the owner's smoking as a fire, it will not cut off the power to all charging piles, so the impact on the experience of other car owners is smaller; secondly, when no misjudgment occurs, minor faults of some vehicles will not cause the entire charging station to stop, and the interference with the operation of the charging station is small.

[0071] Reference Figure 4 and Figure 5 In one embodiment of the present system, the present system further includes a visual effect switching mechanism 7, which includes a cover 71, a filter 72 and a driving mechanism 73. The cover 71 is arranged on the front of the camera 3 and is fixed to the housing of the camera 3 by bolts. The filter 72 and the driving mechanism 73 are located inside the cover 71.

[0072] It is understandable that the portion of the cover 71 located in front of the lens of the camera 3 is open and sealed with high-transmittance glass to avoid hindering the normal use of the camera 3.

[0073] The filter 72 is located in front of the lens and there are multiple filters. The side of the filter 72 is formed with an ear plate 721, and the ear plate 721 is fixed with a rotating shaft. The rotating shafts of the multiple ear plates 721 are coaxial with the central axis and the ends are plugged into each other. Adjacent rotating shafts can rotate with each other, and the outermost rotating shaft end is rotatably connected to the housing and cover 71 of the camera 3; the driving mechanism 73 is used to drive each filter 72 to rotate around the central axis of the rotating shaft.

[0074] Reference Figure 1 The front-end device also includes a weather collection module 8, which includes a light intensity sensor installed near the charging pile and connected to the smart gateway to feed back the light conditions near the charging pile to the supervision background 1. The supervision background 1 is configured as follows:

[0075] Get local weather information;

[0076] Search pre-recorded filter and environment relationship data based on meteorological information to obtain matching filters;

[0077] A drive control instruction for controlling the drive mechanism 73 is sent according to the currently matched filter.

[0078] In this embodiment, the filter-environment relationship data includes: filter IDs matching various light intensity ranges, and driver control instructions associated with the filter IDs. Based on the above settings, the system can switch between different filters 72 based on the lighting conditions at the charging station. This is necessary because strong light can cause reflections on the glass and paint surfaces of vehicles, creating bright spots in the image that interfere with image analysis. Furthermore, the display effects of smoke under different filters vary significantly. For example, a CPL filter can reduce reflections, and a GND filter can reduce the imbalance of sudden changes in brightness and darkness in a vehicle under sunlight.

[0079] Reference Figure 5 The drive mechanism 73 comprises a motor and a gear set. A gear from each gear set is coaxially affixed to each rotating shaft. Housing 71 houses the same number of motors (miniature) as filters 72. The motor output shafts are secured to another gear in the gear set and mesh with the gears on the rotating shafts. Thus, a one-to-one correspondence between motors and filters 72 is established; when necessary, the corresponding motor rotates to switch filters 72.

[0080] In one embodiment of the present system, considering that the light intensity sensor in the charging station is used outdoors and is relatively prone to dust accumulation, resulting in inaccurate detection, the following settings are also made:

[0081] Reference Figure 6 The light intensity sensor is installed on a section of the main pipeline 53 that is exposed to the outside and the detection part is exposed. The air outlet of the air extraction unit 6 is connected to the soot blowing nozzle 9 through a pipeline. The soot blowing nozzle 9 is fixed outside the main pipeline 53 and the air is discharged toward the detection part of the light intensity sensor.

[0082] That is, the light intensity sensor will be cleaned synchronously each time a smoke check is performed, so as to make timely adjustments after the filter 72 is switched incorrectly, improve the image, and correct the image recognition result.

[0083] In another embodiment of the system, the monitoring backend 1 is configured as follows: if the charging vehicle has a surrounding image function, it accesses the cloud corresponding to the vehicle and requests to obtain images taken by the vehicle for flame and smoke recognition.

[0084] The above setup assumes that the vehicle has a sentry function. Requesting images taken by the vehicle has the following advantages: 1) It can fill in the camera blind spots caused by mutual occlusion when multiple vehicles are charging; 2) It can locate the owner's position and eliminate human interference.

[0085] In summary, this system can detect fires at charging stations in a timely manner, reducing the chances of significant economic losses caused by fires at new energy vehicle charging stations.

[0086] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A smoke and fire detection and monitoring system for a new energy vehicle charging station, characterized by: It includes a front-end device, a supervision back-end (1), and a communication module (2) for connecting the front-end device and the supervision back-end (1) to data; The front-end device includes a camera (3) and a smoke detector (4). The field of view of the camera (3) covers the area to be supervised of the charging station. The area to be supervised is provided with a smoke verification system. The smoke verification system includes a pipeline structure (5) located on the side of the charging parking space and an air extraction unit (6) connected to the pipeline structure (5). The smoke detector (4) is installed on the pipeline structure (5) and is located on the air path of the air extraction unit (6). The supervision backend (1) is connected to the air extraction unit (6) via data of the communication module (2). The supervisory backend (1) is configured as follows: Acquire images of the area to be supervised and perform smoke and flame recognition on the images; If the smoke identification result meets the predefined suspected fire condition, the exhaust unit (6) operation control instruction is output and the smoke detection information of the smoke detector (4) is obtained; If the smoke detection information meets the predefined fire conditions, the fire warning information is output; The camera (3) is provided with a visual effect switching mechanism (7), the visual effect switching mechanism (7) comprising a cover (71), a filter (72) and a driving mechanism (73), the cover (71) being provided on the camera (3) and covering the front of the camera (3), the filter (72) being provided in plurality and stacked in front of the lens, the side of the filter (72) being fixed with an ear plate (721), the ear plate (721) being fixed with a rotating shaft, and the driving mechanism (73) being used for driving each filter (72) to rotate around the central axis of the rotating shaft; The front-end device further includes a meteorological collection module (8), the driving mechanism (73) is connected to the communication module (2), and the monitoring backend (1) is configured as follows: Get local weather information; Searching for pre-recorded filter (72) and environmental relationship data according to meteorological information to obtain a matching filter (72); Sending a drive control instruction for controlling a drive control mechanism according to a currently matched filter (72); The pipeline structure (5) comprises a support rod (51) and a flue gas pipe (52); a plurality of through holes are provided on the side wall of the flue gas pipe (52); and a stop valve (55) is installed at the front and rear of each corner of the flue gas pipe (52); The meteorological collection module (8) comprises a light intensity sensor, which is installed on the main pipeline (53) with its detection part exposed. The air outlet of the air extraction unit (6) is connected to a soot blowing nozzle (9) through a pipeline, and the soot blowing nozzle (9) is fixed to the main pipeline (53) and its air outlet is directed toward the detection part of the light intensity sensor.

2. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 1 is characterized in that: The smoke pipe (52) extends along the edge of each charging parking space and forms a U-shaped structure, and the smoke pipe (52) of the U-shaped structure opens toward the parking space entrance and exit; the support rods (51) are multiple and vertically arranged, the lower ends of the support rods (51) are fixed to the ground, and the upper ends are fixed to the smoke pipe (52); the smoke pipe (52) is connected to a main pipe (53), and one end of the main pipe (53) away from the smoke pipe (52) is sleeved with a detection pipe (54), and the other end of the detection pipe (54) is connected to the air inlet port of the exhaust unit (6), and the probe of the smoke detector (4) is inserted into the detection pipe (54); The stop valve (55) is connected to a communication module (2), and the communication module (2) includes an intelligent gateway; The supervisory backend (1) is configured as follows: Locate the suspected fire location based on the image to obtain positioning data; Search the pre-stored valve position relationship data according to the positioning data to obtain the matching valve position; According to the valve position, the corresponding stop valve (55) opening instruction and the air extraction opening instruction are sent to the intelligent gateway.

3. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 2 is characterized in that: At least the pipe section of the smoke pipe (52) located between two adjacent support rods (51) is a telescopic pipe structure.

4. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 2, characterized in that: The supervisory backend (1) is data-connected to the controller of the charging pile and is configured as follows: If fire warning information is output, the fire situation is classified according to the preset fire situation classification rules; If the current fire level meets the local power outage conditions, a power-off control command is sent to the controller of the charging pile corresponding to the fire location; If the current fire level meets the conditions for all power outages, a power outage control instruction is sent to the controllers of all charging piles in the charging station.

5. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 1 is characterized in that: Each of the ear plates (721) corresponds to a rotating shaft, and the multiple rotating shafts are coaxial, plugged into each other and rotatably connected; the outermost rotating shaft end is rotatably connected to the cover (71) and the housing of the camera (3); the driving mechanism (73) includes a motor and a gear set, and the number of the motors and gear sets is the same as the number of the filters (72), and the gear set includes a gear fixed to the motor output shaft and another gear fixed to the rotating shaft, and the two gears in the same group are meshed with each other.

6. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 1, characterized in that: The monitoring backend (1) is configured to: analyze the relationship between flame and smoke characteristics and the driver's behavior based on the image, and determine whether it is a non-fire behavior scene. If so, return flame and smoke recognition; if not, obtain smoke detection information from the smoke detector (4).

7. The smoke and fire detection and monitoring system for a new energy vehicle charging station according to claim 1, characterized in that: The monitoring backend (1) is configured to: if the charging vehicle has a peripheral image function, access the cloud corresponding to the vehicle and request to obtain images taken by the vehicle for flame and smoke recognition.

Images