CN108682076A - A kind of mobile interchange operational system and method for charging pile - Google Patents

Abstract

A technical solution of the present invention is to provide a mobile Internet operation and maintenance system for charging piles, including charging piles with local billing functions, and is characterized in that it also includes mobile Internet operation and maintenance devices independent of charging piles and at least An operation and maintenance server with Internet access. Another technical solution of the present invention is to provide a mobile internet operation and maintenance method for charging piles based on the above system. After adopting the present invention, the original unnetworked charging pile can have a unified remote operation and maintenance management function, and the relevant data can be counted in real time to realize data upload and download interaction. Provide effective reminders to improve the turnover rate of charging parking spaces. Once the equipment is at risk of being submerged in rainwater, even if an alarm is issued and the external power supply is cut off, the loss of personnel and property will be reduced. The invention effectively reduces the waste of facilities caused by the disassembly and assembly of equipment for replacing charging piles, and at the same time is compatible with the old charging pile operation and maintenance platform, thereby improving the scope of application and life cycle of the original product.

Description

A mobile internet operation and maintenance system and method for charging piles

technical field

The invention provides a remote operation and maintenance system for charging piles and an operation and maintenance method based on the operation and maintenance system, which is mainly used for upgrading and upgrading existing billing charging piles that support local card swiping. At the same time, it has the functions of parking space occupancy reminder, water rising equipment protection, and expanded support for QR code scanning user association, user billing, fault alarm, etc.

Background technique

At present, there are many kinds of charging pile manufacturers. Due to the different stages of national charging pile development, each manufacturer's support for card swiping, QR codes, and national standard plugs are also quite different. With the increasing number of users of new energy vehicles, the number of charging piles is also increasing. However, existing charging piles only have local billing and some basic local detection functions. How to carry out unified and effective management of these charging piles is a difficult problem. For this reason, it is necessary to connect the charging piles to the network uniformly. However, due to historical reasons, most of the old charging piles do not have the above functions. In order to achieve network access, the existing technical means need to replace the charging pile as a whole, which not only causes waste of resources, but also takes time and effort. It is feasible. Sex is lower.

At the same time, there are also some problems in the existing charging pile management system/method. For example: the invention patent application with the application number 201611145023.7 proposes a unified billing method for charging piles, which has certain requirements for the billing rate, but does not involve the uploading and interaction of operation and maintenance data. The invention patent application with the application number 201710549490.4 discloses a charging pile system and management method, which only limits the detection of charging pile plugs, and has certain limitations. The invention patent application with the application number 201620209498.7 and the invention patent application with the application number 201710291478.8 proposed a new type of charging pile. The billing methods both support QR code scanning and can upload periodic interactive data to meet the charging data requirements. Synchronize. However, the related data overhead is relatively large, and there is no early warning and related channels for device damage and user feedback. Once the device is damaged, feedback cannot be responded in time, which affects the user experience.

At present, it often happens that the special parking spaces for charging piles are occupied by fuel vehicles, and this situation cannot be effectively dealt with; furthermore, as the layout of charging piles gradually enters the streets and alleys, different manufacturers and standards have different requirements for the operation and maintenance platform of charging piles at the beginning of design. There are different requirements, which make the operation and maintenance platforms incompatible with each other, and the operation and maintenance cannot be directly interconnected with external network applications, resulting in increased operation and maintenance costs and untimely operation and maintenance responses. If unupgraded charging piles are used in rainy areas, once the water level is higher than the protection area of the charging piles, the equipment will leak electricity, and the loss of life and property will be immeasurable.

Contents of the invention

The purpose of the present invention is to realize equipment update and equipment status tracking without replacing the charging pile as a whole, and effectively solve the problems of equipment protection such as the special parking space of the charging pile being occupied by fuel vehicles and the water level being too high in rainy seasons.

In order to achieve the above purpose, a technical solution of the present invention is to provide a mobile Internet operation and maintenance system for charging piles, including charging piles with local billing functions, and is characterized in that it also includes mobile Internet Operation and maintenance device and at least one operation and maintenance server with Internet access function, of which:

The mobile Internet operation and maintenance device includes an internal data communication module, a data summary CPU, a mobile data communication module and a composite electric pile monitoring module, of which:

After the mobile Internet operation and maintenance device is connected to at least one charging pile, the data aggregation CPU performs data interaction with the charging pile through the internal data communication module. At the same time, all the data aggregation CPUs of multiple mobile Internet operation and maintenance devices pass through their respective mobile data communication modules Data interaction with an operation and maintenance server via a wireless network; the user uses a smart terminal to access the operation and maintenance server through the Internet, so as to view the status of the corresponding charging pile through the corresponding mobile Internet operation and maintenance device or through the corresponding mobile Internet operation and maintenance device Issue instructions to the corresponding charging pile;

The composite electric pile monitoring module is used to: 1) Identify whether the current parking space is occupied by a non-new energy vehicle or whether the new energy vehicle fails to leave the current parking space in time after charging. Internet alerts users;

2) Identify the current water level information and protect the charging pile from flooding and leakage risks.

Preferably, the composite electric pile monitoring module includes an ultrasonic distance recognition module 1 and a camera, and the ultrasonic distance recognition module 1 regularly judges whether an object arrives at the current parking space, and the determined distance between it and the charging pile is a rechargeable distance, if so, Then the camera takes pictures of the object and uses the photos to identify the license plate. If there is an abnormality in the license plate recognition, the parking overtime processing discrimination mechanism is started. If the license plate is recognized correctly, it is judged whether the current vehicle is a new energy vehicle. If not, the parking overtime processing is started. Judgment mechanism, if it is, judge whether the current mobile Internet operation and maintenance device and the corresponding charging pile are in the working state, if so, enter the next cycle, if it is not in the working state, start the parking overtime processing judgment mechanism;

After the parking overtime processing and discrimination mechanism is activated, the data aggregation CPU sends an alarm to the background or users connected to the Internet through the operation and maintenance server that the parking space is illegally occupied, and at the same time reports the recognized license plate number, which is convenient for users or relevant management parties to process in a timely manner.

Preferably, the composite electric pile monitoring module also includes an ultrasonic distance recognition module two, and the ultrasonic distance sensing module two is set to scan the ground vertically to obtain real-time information between the lowest plane (ie, the horizontal plane) and the ultrasonic distance sensing module two in real time. Plane height distance, and set different plane height thresholds. When the real-time plane height distance reaches each plane height threshold, the ground image will be obtained through the camera, and the acquired image and license plate information will be uploaded to the operation and maintenance server and the license plate information corresponding user.

Preferably, the highest plane protection threshold is set, and when the real-time plane height distance reaches the highest plane protection threshold, the composite electric pile monitoring module triggers the power-off protection function of the charging pile, and then the composite electric pile monitoring module utilizes the remaining power Always send the necessary information regularly until the self-check confirms that the water level has returned and informs the operation and maintenance to restore the power supply of the charging pile, or the operation and maintenance personnel perform regular maintenance and restore the power supply of the charging pile after the remaining power cannot be self-sustained to supply external signals.

Another technical solution of the present invention is to provide a mobile Internet operation and maintenance method for charging piles based on the above system, which is characterized in that it includes the following steps:

Step 1. After the charging pile and the mobile Internet operation and maintenance device connected to the charging pile are powered on, they perform self-inspection respectively. The charging pile and the mobile Internet operation and maintenance device respectively determine their own self-inspection status. After the self-inspection status of the pile is summarized, it is packaged together with its own self-inspection status and uploaded to the operation and maintenance server. The operation and maintenance server summarizes the self-inspection status of each mobile Internet operation and maintenance device and each charging pile and uploads it to the management terminal connected to the Internet , the management terminal judges whether each charging pile and mobile Internet operation and maintenance device is normal according to the received self-inspection status, if yes, enter the next step, if not, the corresponding charging pile and mobile Internet operation and maintenance device wait for the abnormal maintenance of the management terminal;

During this process, if the operation and maintenance server cannot establish communication with the mobile Internet operation and maintenance device, then mark the self-test status of the corresponding mobile Internet operation and maintenance device as abnormal, and wait for the abnormal maintenance of the management terminal;

Step 2. The charging pile operates autonomously. The mobile Internet operation and maintenance device performs data interaction with the running charging pile, and at the same time performs data interaction with the operation and maintenance server. The mobile Internet operation and maintenance device uploads the operation and maintenance information to the operation and maintenance server regularly and/or in real time. data;

After the charging pile runs autonomously, the ultrasonic distance recognition module regularly judges whether there is an object arriving at the current parking space, and the distance between it and the charging pile is the charging distance. If so, the camera will take a photo of the object and use the photo to identify the license plate. If there is an abnormality in the license plate recognition, the parking overtime processing judgment mechanism will be started. If the license plate is correctly recognized, it will be judged whether the current vehicle is a new energy vehicle. If not, the parking overtime processing judgment mechanism will be started. If so, the current mobile Internet operation and maintenance device and Whether the corresponding charging pile is in the working state, if so, enter the next cycle, if it is not in the working state, start the parking overtime processing judgment mechanism;

Step 3. Under the state of autonomous operation of the charging pile, the ultrasonic distance recognition module 2 scans the ground vertically, combines the information of multi-point sampling, and responds to the preset horizontal level threshold with a minority obeying the majority to determine the new average height of the ground level. When the threshold set by the maintenance equipment manufacturer is triggered, the camera will be triggered to take pictures of the water condition and whether there is a car in the parking space for the maintenance and operation of the operator, and send a MMS message with a picture to the user to remind the user to move the car as soon as possible to avoid property loss.

Preferably, when the average height of the ground level reaches the highest plane protection threshold, if the charging pile is not in place, the lowest point when the charging pile is mopping the ground is used as a reference point to actively disconnect the charging pile wiring power sealed in the waterproof box, and use the device to automatically With the lithium battery, continue to regularly send the average height information of the ground level to the outside world until the power supply of the lithium battery is interrupted or the operation and maintenance personnel restore the device function. electric protection.

After adopting the present invention, the original unnetworked charging pile can have a unified remote operation and maintenance management function, and the relevant data can be counted in real time to realize data upload and download interaction. Make effective reminders. In particular, during the rainy season, the water level near the charging pile rises, and there is a hidden danger of electric leakage in the vicinity of the charging equipment. The invention can prevent the problem by cutting off the power supply in advance and inform the operation and maintenance to carry out the rest of the power protection operation in advance, reducing life. loss of property. In addition, because the introduced device only needs to properly transform the charging pile, it can effectively reduce the waste of facilities caused by the disassembly and assembly of the replacement charging pile, and at the same time, it is compatible with the old charging pile operation and maintenance platform, thereby improving the scope of application and life of the original product. cycle.

Description of drawings

Figure 1 is a schematic diagram of the operation and maintenance upgrade device;

Figure 2 is a flow chart of the components and signal output of the composite electric pile monitoring module;

Figure 3 is a flowchart of the charging pile and the operation and maintenance system after the new installation.

Detailed ways

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

The component elements of a mobile Internet operation and maintenance system for charging piles provided by the present invention include an original charging pile with a charging function, a mobile Internet operation and maintenance device newly added by the present invention, and at least one newly added mobile Internet operation and maintenance device of the present invention. An operation and maintenance server with Internet access function. The mobile Internet operation and maintenance device must include at least one mobile data communication module with SMS function, data aggregation CPU, composite electric pile monitoring module, waterproof casing, rechargeable lithium battery with power conversion, power-off protection switch, and high-current waterproof power supply wiring box and a level conversion module that communicates with the original charging pile.

The present invention is further illustrated by taking a case of an upgrade of a conventional billing card type charging pile as an example: the minimum implementation case of the newly added mobile Internet operation and maintenance device includes a data collection CPU, a mobile data communication module, and a battery that communicates with the original charging pile. The functions of the horizontal conversion module group, the parking space occupancy recognition module and the antenna are shown in Figure 1. The structure diagram of the operation and maintenance upgrade device is as follows:

1. Data summary CPU: The data interaction items between the data summary CPU and the existing charging pile are set by the remote operation and maintenance server. Taking GB/T 27930 as an example, it includes the necessary interaction items shown in Table 1.

Table 1 Correspondence table of necessary items of charging data (adapted to GB/T27930)

Of course, the interaction items are not limited to the above table, but also include other information that can be obtained after coordination with the charging pile manufacturer. For all the above information, the data aggregation CPU can collect, dump, and upload to realize the function of charging pile data transfer and external interconnection.

2. The level conversion module group as an internal data communication module: realize the ability of data interaction with the original charging pile with charging function. According to the interface of the charging pile, the level conversion module group can support mainstream communication methods such as RS232, RS485, USB, Ethernet, etc., and the operation and maintenance effect realized according to the richness of the provided data is slightly different (the default support table 1 corresponds to the necessary items of charging data data content in the table).

3. Mobile data communication module: It supports SMS and network data interconnection with operators, and the data aggregation CPU performs data interaction with the operation and maintenance server through the mobile data communication module. It can realize the interconnection communication of 2G ~ 4G network segment, and even the mobile Internet communication of NB-IOT. Possible implementation cases include the Quectel EC20 communication module that supports AT commands, supports the link transmission of all domestic operators' 2G-4G network segments, and can package and subcontract the operation and maintenance data to realize the interaction between charging pile data and operation and maintenance suppliers Function.

4. The composite electric pile monitoring module, combined with Figure 2, includes a camera that supports night vision, a dedicated chip for license plate recognition, and multiple ultrasonic distance sensing radars.

Among them, the mobile communication module, the data collection CPU, and the level conversion module that communicates with the internal communication of the charging pile are all sealed in a waterproof casing with the lithium battery that supplies power to it. The default installation position of the composite electric pile monitoring module is close to the highest point of the charging pile. Nearby, only the air switch trigger signal line is connected to the waterproof junction box. In addition, the original line of the charging pile is connected to the waterproof junction box, and the air switch controlled by the device is used to cut off the connection with the internal power supply to ensure the reliability of the power supply in the event of a safety risk of water immersion.

Ultrasonic distance sensing radar regularly judges whether there is an object arriving at the current parking space, and the distance between it and the charging pile is the rechargeable distance. If there is an abnormality in the license plate recognition, the parking overtime processing judgment mechanism will be started. If the license plate is correctly recognized, it will be judged whether the current vehicle is a new energy vehicle. If not, the parking overtime processing judgment mechanism will be started. Whether the charging pile is in the working state, if so, enter the next cycle, if it is not in the working state, start the parking overtime processing judgment mechanism.

After the parking overtime processing and discrimination mechanism is activated, the data aggregation CPU sends an alarm to the background or users connected to the Internet through the operation and maintenance server that the parking space is illegally occupied, and at the same time reports the recognized license plate number, which is convenient for users or relevant management parties to process in a timely manner.

Another group of ultrasonic distance-sensing radars scans the ground vertically, combines the multi-point sampling information, and responds to the preset horizontal threshold with a minority obeying the majority to determine the average height of the new ground plane (ie, the horizontal plane). When the threshold set by the operation and maintenance equipment manufacturer is reached, the camera is triggered to take pictures of the water condition and whether there is a car in the parking space for the operation and maintenance provider to maintain and operate, and send a MMS message with a picture to remind the user to move the car as soon as possible to avoid property loss. Further, when the water level continues to rise, if the charging plug of the charging pile has not been placed back to the locking and fixed position of the charging pile, the lowest reference point height when mopping the ground with the plug of the charging pile. When the threshold is reached, it will actively disconnect the wiring power supply of the charging pile sealed in the waterproof box, and use the built-in lithium battery of the device to continue to regularly send water level information to the outside world until the power supply of the lithium battery is interrupted or the operation and maintenance personnel restore the device function, otherwise if the charging pile If the plug is correctly returned and locked on the charging pile, the power-off protection will be carried out according to the minimum non-short-circuit protection point height of the equipment preset by the operation and maintenance provider.

5. Antenna: to achieve signal amplification, especially the mobile data in the basement environment is connected to the open-air environment to realize data interaction with the communication base station. If the location is empty, it can also support equipment positioning, which is convenient for operation and maintenance personnel to search for related equipment.

Due to the corresponding impact of equipment upgrades on existing charging piles. Taking a charging pile that conforms to the State Grid standard as a special case, the original charging pile is independently completed from the start to the final completion of charging and billing. After the new charging pile mobile Internet operation and maintenance device, there is a real-time interaction channel between the device and the external server , at least the necessary item data involved in GB/T27930-2011 can be interacted with the operation and maintenance server. The operation flow chart of the system consisting of the transformed charging pile and the newly added equipment of the present invention is shown in Figure 3, including the following steps:

Step 1. After the charging pile and the mobile Internet operation and maintenance device connected to the charging pile are powered on, perform self-inspection respectively. The self-inspection of the mobile Internet operation and maintenance device is divided into communication self-inspection and occupancy module self-inspection. The communication self-inspection includes the self-inspection of the mobile communication module and the interaction of the basic data of the charging pile. Once the communication fails, it is determined that the self-inspection of the operation and maintenance device has failed. The self-inspection of the occupancy module includes self-inspection of the camera's ability to take pictures, initialization of ultrasonic distance, recognition of parking space signs, etc.

The charging pile and the mobile Internet operation and maintenance device determine their own self-inspection status respectively. The mobile Internet operation and maintenance device summarizes the self-inspection status of the charging pile connected to it and uploads it to the operation and maintenance server together with its own self-inspection status. The server summarizes the self-inspection status of each mobile Internet operation and maintenance device and each charging pile and uploads it to the management terminal connected to the Internet. The management terminal judges whether each charging pile and mobile Internet operation and maintenance device are normal according to the received self-inspection status. If yes, go to the next step, if not, the corresponding charging pile and mobile Internet operation and maintenance device are waiting for the abnormal maintenance of the management end;

During this process, if the operation and maintenance server cannot establish communication with the mobile Internet operation and maintenance device, then mark the self-test status of the corresponding mobile Internet operation and maintenance device as abnormal, and wait for the abnormal maintenance of the management terminal;

Step 2. The charging pile operates independently. The mobile Internet operation and maintenance device performs data interaction with the charging pile that has already been operated, and at the same time performs data interaction with the operation and maintenance server. The mobile Internet operation and maintenance device uploads the operation and maintenance information to the operation and maintenance server regularly and/or in real time. data;

After the charging pile runs autonomously, the ultrasonic distance recognition module regularly judges whether there is an object arriving at the current parking space, and the distance between it and the charging pile is the charging distance. If so, the camera will take a photo of the object and use the photo to identify the license plate. If there is an abnormality in the license plate recognition, the parking overtime processing judgment mechanism will be started. If the license plate is correctly recognized, it will be judged whether the current vehicle is a new energy vehicle. If not, the parking overtime processing judgment mechanism will be started. If so, the current mobile Internet operation and maintenance device and Whether the corresponding charging pile is in the working state, if so, enter the next cycle, if it is not in the working state, start the parking overtime processing judgment mechanism.

Step 3. Under the autonomous operation state of the charging pile, another group of ultrasonic distance sensing radars scans the ground vertically, and combines the information of multi-point sampling to determine the average height of the new ground plane (that is, the horizontal plane) to the preset horizontal plane threshold by a minority obeying the majority to respond. When the threshold set by the operation and maintenance equipment manufacturer is reached, the camera is triggered to take pictures of the water condition and whether there is a car in the parking space for the operation and maintenance provider to maintain and operate, and send a MMS message with a picture to remind the user to move the car as soon as possible to avoid property loss. Further, when the water level continues to rise, if the charging pile is not in place, the lowest point when the charging pile is mopping the ground is used as a reference point to actively disconnect the power supply of the charging pile wiring sealed in the waterproof box, and use the lithium battery that comes with the device to continue Regularly send water level information until the power supply of the lithium battery is interrupted or the operation and maintenance personnel restore the device function after maintenance. On the contrary, if the charging pile returns to its original position, the power-off protection will be carried out according to the minimum non-short-circuit protection point height of the equipment preset by the operation and maintenance provider.

Claims (6)

1. A mobile Internet operation and maintenance system for charging piles, including charging piles with local billing functions, characterized in that it also includes mobile Internet operation and maintenance devices independent of charging piles and at least one with Internet access Functional operation and maintenance server, in which: The mobile Internet operation and maintenance device includes an internal data communication module, a data summary CPU, a mobile data communication module and a composite electric pile monitoring module, of which: After the mobile Internet operation and maintenance device is connected to at least one charging pile, the data aggregation CPU performs data interaction with the charging pile through the internal data communication module. At the same time, all the data aggregation CPUs of multiple mobile Internet operation and maintenance devices pass through their respective mobile data communication modules Data interaction with an operation and maintenance server via a wireless network; the user uses a smart terminal to access the operation and maintenance server through the Internet, so as to view the status of the corresponding charging pile through the corresponding mobile Internet operation and maintenance device or through the corresponding mobile Internet operation and maintenance device Issue instructions to the corresponding charging pile; The composite electric pile monitoring module is used to: 1) Identify whether the current parking space is occupied by a non-new energy vehicle or whether the new energy vehicle fails to leave the current parking space in time after charging. Internet alerts users; 2) Identify the current water level information and protect the charging pile from flooding and leakage risks. 2. A mobile interconnection operation and maintenance system for charging piles as claimed in claim 1, wherein the composite electric pile monitoring module includes an ultrasonic distance recognition module and a camera, and the ultrasonic distance recognition module regularly judges whether An object arrives at the current parking space, and the distance between it and the charging pile is a rechargeable distance. If so, the camera will take a picture of the object and use the photo to identify the license plate. If there is an abnormality in the license plate recognition, the parking overtime processing discrimination mechanism will be activated. If the license plate is correctly identified, it is judged whether the current vehicle is a new energy vehicle, if not, the parking overtime processing judgment mechanism is started, and if so, it is judged whether the current mobile Internet operation and maintenance device and the corresponding charging pile are in working state, and if so, enter In the next cycle, if it is in a non-working state, start the parking overtime processing discrimination mechanism; After the parking overtime processing and discrimination mechanism is activated, the data aggregation CPU sends an alarm to the background or users connected to the Internet through the operation and maintenance server that the parking space is illegally occupied, and at the same time reports the recognized license plate number, which is convenient for users or relevant management parties to process in a timely manner. 3. A mobile interconnected operation and maintenance system for charging piles as claimed in claim 2, wherein the composite electric pile monitoring module also includes an ultrasonic distance identification module two, and the ultrasonic distance sensing module two is arranged vertically For ground scanning, obtain the real-time plane height distance between the lowest plane and the ultrasonic distance sensing module 2 in real time, and set different plane height thresholds. When the real-time plane height distance reaches each plane height threshold, the ground image is obtained through the camera. And upload the acquired image and license plate information to the operation and maintenance server and the user corresponding to the license plate information. 4. A mobile internet operation and maintenance system for charging piles as claimed in claim 3, characterized in that the highest plane protection threshold is set, and when the real-time plane height distance reaches the highest plane protection threshold, the The composite electric pile monitoring module triggers the power-off protection function of the charging pile, and then the composite electric pile monitoring module uses the remaining power to send the necessary information regularly until the self-check confirms that the water level returns and informs the operation and maintenance to restore the power supply of the charging pile, or the operation and maintenance personnel After the power supply cannot be self-sustained and the external signal is transmitted, regular maintenance is required to restore the power supply of the charging pile. 5. A mobile internet operation and maintenance method for charging piles based on the system of claim 1, characterized in that it comprises the following steps: Step 1. After the charging pile and the mobile Internet operation and maintenance device connected to the charging pile are powered on, they perform self-inspection respectively. The charging pile and the mobile Internet operation and maintenance device respectively determine their own self-inspection status, and the mobile Internet operation and maintenance device After summarizing the self-inspection status of the pile, it is packaged together with its own self-inspection status and uploaded to the operation and maintenance server. The operation and maintenance server summarizes the self-inspection status of each mobile Internet operation and maintenance device and each charging pile and uploads it to the management terminal connected to the Internet , the management terminal judges whether each charging pile and mobile Internet operation and maintenance device is normal according to the received self-inspection status, if yes, enters the next step, if not, the corresponding charging pile and mobile Internet operation and maintenance device wait for the abnormal maintenance of the management terminal; During this process, if the operation and maintenance server cannot establish communication with the mobile Internet operation and maintenance device, then mark the self-test status of the corresponding mobile Internet operation and maintenance device as abnormal, and wait for the abnormal maintenance of the management terminal; Step 2. The charging pile operates autonomously. The mobile Internet operation and maintenance device performs data interaction with the running charging pile, and at the same time performs data interaction with the operation and maintenance server. The mobile Internet operation and maintenance device uploads the operation and maintenance information to the operation and maintenance server regularly and/or in real time. data; After the charging pile runs autonomously, the ultrasonic distance recognition module regularly judges whether there is an object arriving at the current parking space, and the distance between it and the charging pile is the charging distance. If so, the camera will take a photo of the object and use the photo to identify the license plate , if there is an abnormality in the license plate recognition, start the parking overtime processing discrimination mechanism, if the license plate is correctly recognized, then judge whether the current vehicle is a new energy vehicle, if not, start the parking overtime processing discrimination mechanism, if so, judge the current mobile Internet operation and maintenance device And whether the corresponding charging pile is in the working state, if so, enter the next cycle, if it is not in the working state, start the parking overtime processing discrimination mechanism; Step 3. Under the state of autonomous operation of the charging pile, the ultrasonic distance recognition module 2 scans the ground vertically, combines the information of multi-point sampling, and responds to the preset horizontal level threshold with a minority obeying the majority to determine the new average height of the ground level. When the threshold set by the maintenance equipment manufacturer is triggered, the camera will be triggered to take pictures of the water condition and whether there is a car in the parking space for the maintenance and operation of the operator, and send a MMS message with a picture to the user to remind the user to move the car as soon as possible to avoid property loss. 6. A mobile Internet operation and maintenance method for charging piles as claimed in claim 5, wherein when the average height of the ground level reaches the highest level protection threshold, if the charging plug of the charging pile is not homing and locked, then use The charging pile plug is the lowest reference point when mopping the ground. Actively disconnect the charging pile wiring power sealed in the waterproof box, and use the device's built-in lithium battery to continue sending the average height information of the ground level to the outside world until the lithium battery power supply is interrupted or the operation and maintenance personnel overhaul After restoring the device function, if the charging pile returns to its original position, power-off protection will be carried out according to the minimum non-short-circuit protection point height of the device preset by the operation and maintenance provider.