Monitoring, early warning and active fire extinguishing system of charging vehicle

Abstract

The invention discloses a monitoring, early warning and active fire extinguishing system for a charging vehicle, and relates to the technical field of charging safety management. According to the invention, an active early warning and fire fighting system based on an information monitoring platform and a message transmission platform is established, management is carried out from multiple angles of an early warning mode before a fire disaster and a fire fighting mode after the fire disaster, and comprehensive early fire monitoring is carried out in combination with multiple monitoring information; and the active fire-fighting equipment is guided to execute fire extinguishing operation aiming at a specific position by accurately positioning a fire occurrence position. And a more reliable means is provided for on-line monitoring and early warning and fire fighting of the charging vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of charging safety management, and in particular to a monitoring, early warning and active fire-fighting system for charging vehicles. Background Art

[0002] Battery vehicles and electric vehicles are electric vehicles that are powered by electricity. They are convenient, practical, and environmentally friendly, and have become an important means of transportation for people's daily travel. With the surge in the number of electric vehicles, charging fires have also occurred frequently, which not only poses a serious threat to property safety, but also brings personal safety issues.

[0003] Vehicle charging fires usually occur in underground garages and other places, which are characterized by suddenness and concealment. Therefore, it is difficult to monitor and prevent fires in garages. The existing active fire warning mainly targets smoke and flame recognition alarms in the monitoring area. However, it cannot identify newly connected charging vehicles, and it is impossible to control faulty vehicles separately, resulting in the problem that it is difficult to find and control the fire in the early stage, and fire fighting measures are not timely. In this regard, some scholars have proposed the use of vehicle charging monitoring methods, which collects various indicators of the electric meters installed in the charging shed in real time to facilitate regular maintenance by staff. However, this method lacks timely feedback of monitoring information and active fire fighting, and cannot contain the occurrence of fires in time. Some methods of remote monitoring of charging points prevent accidents by building a remote centralized control platform to perform remote timed switches, automatic power off when full, and overload protection. However, these methods also have problems such as imperfect monitoring indicators, inability to accurately locate the accident location, and insufficient early fire fighting measures.

[0004] Therefore, in order to accurately prevent fires caused by charging vehicles and to accurately extinguish fires after a fire occurs, a safety management system for accurate fire monitoring and active fire fighting for vehicle charging is urgently needed to prevent and curb fire accidents. Summary of the invention

[0005] The present invention provides a monitoring, early warning and active fire fighting system for charging vehicles, so as to solve the problems that the existing charging shed fire monitoring is not accurate enough and lacks active prevention measures.

[0006] The present invention is achieved through the following technical solutions:

[0007] A monitoring, early warning and active fire-fighting system for charging vehicles is provided, including:

[0008] A charging identification module is used to detect a newly connected charging vehicle and identify the identity information and charging interface information of the charging vehicle;

[0009] An image monitoring module is used to scan the image of the charging shed after receiving the identity information of the charging vehicle, obtain the image of the charging vehicle, associate the position of the image of the charging vehicle in the charging shed image with the position of the charging vehicle in the charging shed, and judge the fire situation and the location of the fire based on the monitored charging shed image, and generate a first control instruction if there is a fire;

[0010] An electrical parameter monitoring module, used to monitor the electrical parameters of the charging interface in the charging state, and generate a second control instruction if any electrical parameter reaches a set threshold;

[0011] an active fire fighting module, configured to cut off the power supply of the charging interface according to the received first control instruction, move the fire extinguishing equipment on the top of the charging shed to the location where the fire occurred to perform fire extinguishing operations, and cut off the power supply of the charging interface according to the second control instruction;

[0012] The cloud information interaction module is connected with the charging identification module, the image monitoring module, the electrical parameter monitoring module and the active fire protection module for data interaction.

[0013] The present invention builds an active early warning and fire fighting system based on an information monitoring platform and a message transmission platform, and manages from multiple angles from the early warning mode before the fire occurs and the fire fighting mode after the fire occurs. The charging identification module detects the newly connected vehicle to obtain the vehicle identity information, and associates it with the charging interface information used by it, so as to obtain the charging position of the charging vehicle in the charging shed, obtain comprehensive monitoring indicators through image monitoring and electrical parameter monitoring, and monitor the charging vehicle through image tracking, so as to quickly analyze the location of the fire, locate the specific vehicle and charging interface, control the active fire fighting module to cut off the relevant power supply and locate the fire location for early active intervention to minimize the impact of the fire. The solution of the present invention solves the current problems of being unable to control the faulty vehicle alone, incomplete information collection, and inadequate fire fighting measures after the fault occurs, resulting in untimely fire fighting, and provides a more reliable means for online monitoring and early warning of charging vehicles and fire fighting.

[0014] As a preferred embodiment, the charging identification module includes an electrical detection device and an identity collection device installed in each charging port;

[0015] The electrical detection device determines whether a charging vehicle is connected to the charging interface by detecting the electrical signal of the charging interface;

[0016] When a charging vehicle is connected to the charging interface for charging, the identity identification collection device obtains the identity identification information of the charging vehicle, and sends the identity identification information of the charging vehicle and the charging interface information to the image monitoring module through the cloud information interaction module.

[0017] As a preferred implementation, the identity collection device also receives user information of the charging vehicle, and uploads the identity information, charging interface information and user information of the charging vehicle to a cloud server for charging and electricity fee management.

[0018] As a preferred embodiment, the image monitoring module includes a first image acquisition device and a second image acquisition device;

[0019] The first image acquisition device is an optical imaging device, which is used to acquire optical images in the charging shed, so as to identify charging vehicles, smoke and flames through the optical images;

[0020] The second image acquisition device is an infrared imaging device, which is used to acquire infrared images in the charging shed so as to perform temperature recognition through the infrared images.

[0021] As a preferred implementation, the method of judging the fire condition and the location of the fire based on the monitored charging shed image includes:

[0022] Perform smoke recognition and flame recognition through the optical image collected by the first image acquisition device. If smoke or flame is present, it is determined that there is a fire, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the image of the charging shed and the position of the charging vehicle in the charging shed;

[0023] Temperature recognition is performed on the infrared image collected by the second image acquisition device. If the local temperature is higher than the set temperature threshold, it is determined that there is a fire at the local location, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the charging shed image and the position of the charging vehicle in the charging shed.

[0024] As a preferred embodiment, the electrical parameters monitored by the electrical parameter monitoring module include charging capacity, current, voltage, power quality and temperature. When it is monitored that the battery is fully charged, the current exceeds 1.5 times the maximum steady-state current, the voltage fluctuation amplitude exceeds ±50%, or the temperature exceeds 70 degrees, a second control instruction is generated.

[0025] As a preferred embodiment, the electrical parameter monitoring module also monitors the charging time and charging electricity fee, and displays the monitoring information in real time on the electronic screen of the charging pile.

[0026] As a preferred embodiment, the active fire protection module includes a switch, a switch control module, a fire extinguishing device and a fire extinguishing control module arranged between each charging port and the power supply;

[0027] After receiving the first control instruction, the active fire fighting module sends a shutdown signal to the switch control module and sends a fire extinguishing instruction to the fire extinguishing control module. The switch control module turns off the switches of the charging interfaces around the fire location according to the shutdown signal, and the fire extinguishing control module moves the fire extinguishing device to the fire location to perform fire extinguishing operations according to the fire extinguishing instruction.

[0028] After receiving the second control instruction, the active fire fighting module sends a shutdown signal to the switch control module, and the switch control module disconnects the switches of the charging interfaces around the fire location according to the shutdown signal.

[0029] As a preferred embodiment, the fire extinguishing device adopts a dry powder fire extinguisher or a carbon dioxide fire extinguisher.

[0030] As a preferred implementation, the cloud information interaction module uploads information from the charging identification module, the image monitoring module, the electrical parameter monitoring module and the active fire protection module to the cloud server, so that the information is sent down to the user terminal through the cloud server.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] By building an automatic charging identification module, a charging information monitoring module, an active fire protection module, and an information interaction module, we can make instant judgments on the collected information and interact with the cloud platform. We can manage from multiple angles from the early warning mode before the fire and the fire protection mode after the fire, solving the current problems of being unable to control the faulty vehicle individually, incomplete information collection, and inadequate remedial measures after the fault occurs.

[0033] Through optical image monitoring, infrared image monitoring and electrical parameter monitoring, fire trends are comprehensively monitored to achieve timely detection and early warning of fires.

[0034] By individually controlling the switch status of each charging port, accurate positioning and task assignment can be achieved based on user information; by moving the fire-fighting device installed on the top of the charging shed and locating the fire location, fire-fighting operations can be carried out at precise locations, and early fire intervention can be carried out to avoid serious consequences;

[0035] The charging status is controlled through the cloud information interaction module, and the monitoring information is transmitted to the cloud server, where charging and electricity fee management are performed. Finally, the information is transmitted to the client, allowing users to understand the charging status in real time and receive fee and warning information. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0037] Figure 1 This is a block diagram of a monitoring, early warning and active fire fighting system for a charging vehicle according to an embodiment of the present invention;

[0038] Figure 2 is a functional schematic diagram of a charging identification module according to an embodiment of the present invention;

[0039] Figure 3 is a schematic diagram of a charging interface switch configuration according to an embodiment of the present invention;

[0040] Figure 4 It is a schematic diagram of a charging shed facility configuration according to an embodiment of the present invention;

[0041] Figure 5 It is a functional schematic diagram of a charging information monitoring platform according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0043] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings 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 or inherent to other steps or units of the device.

[0044] The terms used in the various embodiments of the application are only used to describe the purpose of specific embodiments and are not intended to limit the various embodiments of the application. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise limited, all terms used here (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the application. The terms (such as the terms defined in the dictionary generally used) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the application.

[0045] The embodiments of the present invention provide a monitoring, early warning and active fire fighting system for charging vehicles, which is suitable for scenarios such as electric vehicle charging and charging sheds, and garages with charging piles installed. It is conducive to timely and comprehensive discovery of early fires, accurate positioning and active fire fighting measures to prevent the fire from spreading.

[0046] See also Figure 1 As shown, Figure 1 It is a block diagram of a monitoring, early warning and active fire fighting system for a charging vehicle according to an embodiment of the present invention, and the system mainly includes a charging identification module, an image monitoring module, an electrical parameter monitoring module, an active fire fighting module and a cloud information interaction module. The charging identification module detects a newly connected charging vehicle and identifies the identity information and charging interface information of the charging vehicle; after receiving the identity information of the charging vehicle, the image monitoring module scans the charging shed image, obtains the image of the charging vehicle, associates the position of the image of the charging vehicle in the charging shed image with the position of the charging vehicle in the charging shed, and judges the fire situation and the location of the fire based on the monitored charging shed image. If there is a fire, a first control instruction is generated; the electrical parameter monitoring module monitors the electrical parameters of the charging interface in the charging state, and generates a second control instruction if any electrical parameter reaches a set threshold; the active fire fighting module cuts off the power supply of the charging interface according to the received first control instruction, moves the fire extinguishing equipment on the top of the charging shed to the location of the fire to perform the fire extinguishing operation, and cuts off the power supply of the charging interface according to the second control instruction; the cloud information interaction module is connected to the charging identification module, the image monitoring module, the electrical parameter monitoring module and the active fire fighting module for data interaction.

[0047] like Figure 2 The figure shows the function diagram of the charging identification module, which is installed on each charging pile. Each charging pile can be provided with a single charging interface or multiple charging interfaces. Figure 3 The schematic diagram of the charging interface switch configuration is shown in the figure, which shows the battery car charger connected to each charging interface. Each charging interface is powered in parallel by the main power supply. A single charging port can connect to a battery car. Each charging circuit is equipped with an independent switch. Each charging interface controls the power supply to be turned on or off through an independent switch. When the vehicle is connected to the charging interface for charging, the switch between the charging interface and the power supply is turned on.

[0048] The charging identification module detects the charging behavior of the vehicle connected to the charging interface, obtains the charging interface information of the charging interface used by the newly connected charging vehicle, and the identity information of the charging vehicle. The charging interface information of the charging vehicle can be used to monitor the parameters of the charging interface, such as the charging power, charging time, and electrical parameters during charging, and the monitoring information is bound to the identity information of the charging vehicle, and the monitoring data is formed into a separate file to monitor and manage each connected charging vehicle separately.

[0049] Obtain the identity information of the charging vehicle and its charging interface information, and determine the charging position of the newly connected charging vehicle according to the electrical interface information, thereby determining the position of the charging vehicle in the charging shed. Figure 4 Shown is a schematic diagram of the configuration of the charging shed facilities, which includes three charging positions (parking spaces) M1-M3 and three charging interfaces C1-C3 corresponding to the three charging positions.

[0050] In one embodiment, the charging identification module includes an electrical detection device and an identity collection device installed in each charging interface. The electrical detection device determines whether a charging vehicle is connected to the current charging interface by detecting the electrical signal of the charging interface, that is, it detects the charging behavior of the newly connected vehicle by determining whether the charging interface is powered on. When a charging vehicle is connected to the charging interface for charging, the identity collection device obtains the identity information of the charging vehicle. The identity collection device can be an image acquisition device that collects the license plate number of the charging vehicle as its identity, or it can be a data receiving device that obtains the IP, user information, account information, etc. of the charging vehicle through user scanning or registration behavior as the identity information of the charging vehicle, that is, any information that uniquely identifies different vehicles can be used as the identity information of the vehicle.

[0051] The charging identification module transmits the collected information to the image monitoring module or the charging information monitoring platform through the cloud information interaction module, so as to synchronize the newly connected vehicle information and charging interface information to the image monitoring module. The image monitoring module locates the image of the newly connected vehicle through image scanning, and monitors the collected information of a single charging vehicle as an independent file.

[0052] In one embodiment, the identity collection device also receives the user information of the charging vehicle, and uploads the identity information, charging interface information and user information of the charging vehicle to the cloud server for charging and electricity fee management. The cloud server sends the charging and billing information to the corresponding user terminal according to the identity information or user information of the vehicle.

[0053] The image monitoring module and the electrical parameter monitoring module can be built into a charging information monitoring platform to manage the monitoring information of each module in a unified manner. Figure 5The figure shows the functional diagram of the charging information monitoring platform. After receiving the identity information of the newly connected charging vehicle, the image monitoring module identifies the identity information of the vehicle (such as license plate number, charging position information, etc.) through the collected image, matches it with the vehicle identity information collected by the charging identification module, determines the position of the newly connected vehicle in the collected image, and associates the position of the image of the charging vehicle in the charging shed image with its actual position in the charging shed, so that when a fire is detected through the collected image, the smoke or flame is located at the actual position according to the position in the image, thereby instructing the active fire fighting module to cut off the power supply or extinguish the fire at a specific location, and implement early warning and active fire fighting without affecting the normal area.

[0054] In one embodiment, the image monitoring module includes a first image acquisition device and a second image acquisition device (such as Figure 4 R1, R2). The first image acquisition device is an optical imaging device, which is used to acquire optical images in the charging shed, so as to identify charging vehicles, smoke and flames through optical images. The second image acquisition device is an infrared imaging device, which is used to acquire infrared images in the charging shed, so as to identify temperature through infrared images. Figure 4 R1 can be set as an optical imaging device to collect the license plate number of the charging vehicle, and R2 can be an infrared imaging device. R1 and R2 are set on different walls to monitor the charging shed from different angles to avoid blind spots. In addition, multiple first image acquisition devices and second image acquisition devices can be set respectively, and the number and installation position can be flexibly set according to the size of the monitoring area.

[0055] In one embodiment, judging the fire and the location of the fire based on the monitored charging shed image includes judging the fire by the optical image monitored by the first image acquisition device and judging the fire by the infrared image acquired by the second image acquisition device. Specifically, smoke recognition and flame recognition are performed on the optical image. If there is smoke or flame, it is judged that there is a fire, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the charging shed image and the position of the charging vehicle in the charging shed; temperature recognition is performed on the infrared image. If the local temperature is higher than the set temperature threshold, it is judged that there is a fire at the local location, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the charging shed image and the position of the charging vehicle in the charging shed.

[0056] In one embodiment, the fire condition and the location of the fire are determined based on the monitored images of the charging shed, including using machine learning to identify various types of fire conditions on the optical images monitored by the first image acquisition device and the infrared images collected by the second image acquisition device, and learning and identifying various types of flames, local infrared high temperatures, smoke diffusion and other states. Once a fault is determined, the power is immediately cut off and uploaded to the cloud platform.

[0057] The electrical parameter monitoring module includes sensors installed on each charging line, including charging power monitoring, current monitoring, voltage monitoring, power quality monitoring and temperature monitoring. After detecting that any signal exceeds the set threshold, the power supply can be immediately cut off and the information can be returned to the cloud terminal. For example, when the battery is full, the current exceeds 1.5 times the maximum value of the steady-state current, the voltage fluctuation exceeds ±50% or the temperature exceeds 70 degrees, the local temperature of the battery vehicle exceeds 70 degrees, and the charging vehicle produces thick smoke or flames, the power supply is immediately cut off, the information is uploaded to the cloud server in real time, the alarm is turned on, and it is synchronized to the user terminal. The user terminal can also issue instructions separately to remotely control the charging power status, camera position and fire equipment status.

[0058] When the real-time collected data exceeds the set threshold, the switch can be turned off through the single-chip control circuit. If the power is cut off in advance, the charging amount can also be charged. For example, if the battery is only 60% full, only 60% will be charged.

[0059] Furthermore, the electric parameter monitoring module also includes monitoring of charging time and charging electricity cost, and displays the current, voltage, power quality, temperature, charging time, electricity cost and other monitoring information of the charging vehicle in the charging state on the electronic screen of the charging pile. It can also predict the remaining charging time and the amount of electricity that has been charged, and display them on the electronic screen.

[0060] The active fire protection module includes a switch, a switch control module, a fire extinguishing device and a fire extinguishing control module arranged between each charging port and the power supply. The fire extinguishing device is installed on the top of the charging shed through a slide rail. Figure 4 The three fire extinguishing devices F1 to F3 shown in the figure can be moved along the slide rail to any position of the charging shed and can be sprayed according to the fire situation. The fire extinguishing device uses a special electrical fire extinguisher, such as a dry powder fire extinguisher, a carbon dioxide fire extinguisher, etc.

[0061] After receiving the first control instruction, the active fire fighting module sends a shutdown signal to the switch control module and sends a fire extinguishing instruction to the fire extinguishing control module. The switch control module disconnects the switch of the charging interface around the fire location according to the shutdown signal, and the fire extinguishing control module moves the fire extinguishing device to the fire location to perform the fire extinguishing operation according to the fire extinguishing instruction. After receiving the second control instruction, the active fire fighting module sends a shutdown signal to the switch control module, and the switch control module disconnects the switch of the charging interface around the fire location according to the shutdown signal.

[0062] In summary, the monitoring, early warning and active fire fighting system for charging vehicles of the present invention can achieve the following functions and effects.

[0063] (1) Locate and identify the IP address of the newly connected electric bicycle, and upload the charging port information, electric bicycle vehicle information and user information to the data center in a timely manner to keep charging and payment records.

[0064] (2) Camera positioning and identification: After receiving the identity information of the connected electric vehicle, the camera performs an overall scan, including image recognition and infrared thermal imaging, and monitors the collected information of a single electric vehicle as an independent file.

[0065] (3) Special electrical fire extinguishing equipment is installed on the top of the parking shed corresponding to the parking space, and the fire source can be tracked through the slide rail.

[0066] (4) The current, voltage, power quality and temperature of the vehicle during charging can be monitored. The charging status can be timed, the remaining charging time can be predicted, and the amount of electricity already charged can be displayed on the electronic screen.

[0067] (5) The power supply will be automatically cut off after the battery is fully charged. If the power supply is cut off in advance, the charging amount can also be used for billing.

[0068] (6) The monitored charging information is uploaded to the cloud terminal in real time, and the charging status can be operated through the cloud platform. When any signal is detected to exceed the set threshold, the power supply can be immediately cut off and returned to the cloud terminal. When the real-time collected data exceeds the set threshold, the switch can be turned off through the microcontroller control circuit, and the information can be uploaded to the cloud platform in real time.

[0069] (7) Accurately control the switch status of each charging port, so as to achieve accurate positioning and task assignment based on user information, regardless of whether it is a separate charging station.

[0070] (8) Fire source identification and thermal infrared monitoring are performed through the image recognition system. Once a situation is detected, the power supply can be immediately disconnected and a dedicated electrical fire extinguisher can be activated. Real-time data will be uploaded to the cloud terminal and an alarm will be activated.

[0071] (9) The use of image recognition, thermal infrared imaging and electrical parameter monitoring provides more comprehensive and reliable judgment for online charging monitoring and early warning and fire fighting.

[0072] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A monitoring, early warning and active fire fighting system for charging vehicles, characterized in that: include: A charging identification module is used to detect a newly connected charging vehicle and identify the identity information and charging interface information of the charging vehicle; An image monitoring module is used to scan the image of the charging shed after receiving the identity information of the charging vehicle, obtain the image of the charging vehicle, associate the position of the image of the charging vehicle in the charging shed image with the position of the charging vehicle in the charging shed, and judge the fire situation and the location of the fire based on the monitored charging shed image, and generate a first control instruction if there is a fire; An electrical parameter monitoring module, used to monitor the electrical parameters of the charging interface in the charging state, and generate a second control instruction if any electrical parameter reaches a set threshold; an active fire fighting module, configured to cut off the power supply of the charging interface according to the received first control instruction, move the fire extinguishing equipment on the top of the charging shed to the location where the fire occurred to perform fire extinguishing operations, and cut off the power supply of the charging interface according to the second control instruction; The cloud information interaction module is network-connected to the charging identification module, the image monitoring module, the electrical parameter monitoring module and the active fire protection module for data interaction.

2. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 1, characterized in that: The charging identification module includes an electrical detection device and an identity collection device installed in each charging interface; The electrical detection device determines whether a charging vehicle is connected to the charging interface by detecting the electrical signal of the charging interface; When a charging vehicle is connected to the charging interface for charging, the identity identification collection device obtains the identity identification information of the charging vehicle, and sends the identity identification information of the charging vehicle and the charging interface information to the image monitoring module through the cloud information interaction module.

3. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 2, characterized in that: The identity collection device also receives user information of the charging vehicle, and uploads the identity information, charging interface information and user information of the charging vehicle to a cloud server for charging and electricity fee management.

4. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 1, characterized in that: The image monitoring module includes a first image acquisition device and a second image acquisition device; The first image acquisition device is an optical imaging device, which is used to acquire optical images in the charging shed, so as to identify charging vehicles, smoke and flames through the optical images; The second image acquisition device is an infrared imaging device, which is used to acquire infrared images in the charging shed so as to perform temperature recognition through the infrared images.

5. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 4, characterized in that: The method of judging the fire condition and the location of the fire based on the monitored charging shed image includes: Perform smoke recognition and flame recognition through the optical image collected by the first image acquisition device. If smoke or flame is present, it is determined that there is a fire, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the image of the charging shed and the position of the charging vehicle in the charging shed; Temperature recognition is performed on the infrared image collected by the second image acquisition device. If the local temperature is higher than the set temperature threshold, it is determined that there is a fire at the local location, and the location of the fire is determined based on the correlation between the position of the image of the charging vehicle in the charging shed image and the position of the charging vehicle in the charging shed.

6. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 1, characterized in that: The electrical parameters monitored by the electrical parameter monitoring module include charging capacity, current, voltage, power quality and temperature. When it is monitored that the battery is fully charged, the current exceeds 1.5 times the maximum steady-state current, the voltage fluctuation exceeds ±50% or the temperature exceeds 70 degrees, a second control instruction is generated.

7. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 6, characterized in that: The electrical parameter monitoring module also monitors the charging time and charging electricity fee, and displays the monitoring information in real time on the electronic screen of the charging pile.

8. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 1, characterized in that: The active fire protection module includes a switch disposed between each charging port and the power source, a switch control module, a fire extinguishing device and a fire extinguishing control module; After receiving the first control instruction, the active fire fighting module sends a shutdown signal to the switch control module and sends a fire extinguishing instruction to the fire extinguishing control module. The switch control module turns off the switches of the charging interfaces around the fire location according to the shutdown signal, and the fire extinguishing control module moves the fire extinguishing device to the fire location to perform fire extinguishing operations according to the fire extinguishing instruction. After receiving the second control instruction, the active fire fighting module sends a shutdown signal to the switch control module, and the switch control module disconnects the switches of the charging interfaces around the fire location according to the shutdown signal.

9. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 8, characterized in that: The fire extinguishing device adopts a dry powder fire extinguisher or a carbon dioxide fire extinguisher.

10. The monitoring, early warning and active fire fighting system for charging vehicles according to claim 1, characterized in that: The cloud information interaction module uploads the information from the charging identification module, the image monitoring module, the electrical parameter monitoring module and the active fire protection module to the cloud server, so that the information is sent to the user terminal through the cloud server.

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