CN115118754B - Remote monitoring and testing system and monitoring and testing method for electric vehicles - Google Patents

Abstract

The invention relates to the field of electric vehicles, and discloses a remote monitoring and testing system and a monitoring and testing method for electric vehicles. The system includes: data acquisition service, used to obtain test data of electric vehicles, and screen the test data; data analysis service, used to analyze the data; timing task service, used to periodically perform preset detection items performance statistics; data push service, used to push test data and corresponding analysis results to the front end for display; system application service, used for multi-dimensional analysis of data; streaming media service, used to obtain and store the electric vehicle related video data. The purpose of remote monitoring and detection for electric vehicles is realized, the efficiency and accuracy of monitoring and detection are improved, and labor costs are saved.

Description

Remote monitoring and testing system and monitoring and testing method for electric vehicles

technical field

The invention relates to the field of electric vehicles, in particular to a remote monitoring and testing system and a monitoring and testing method for electric vehicles.

Background technique

The state requires that every electric vehicle need to connect the real-time data of the vehicle to the national supervision system in accordance with the requirements of GB/T32960 "Technical Specifications for Remote Service and Management System of Electric Vehicles" to ensure the safety of people's lives and property.

In view of this, the present invention is proposed.

Contents of the invention

In order to solve the above technical problems, the present invention provides a remote monitoring and testing system and monitoring and testing method for electric vehicles, which realizes the purpose of remote monitoring and testing for electric vehicles, improves monitoring efficiency and monitoring accuracy, and saves labor costs .

An embodiment of the present invention provides a remote monitoring and testing system for electric vehicles, the system includes:

The data collection service is used to obtain the test data of the electric vehicle based on the wireless communication network, and to screen the test data. If it is determined that the test data meets the preset conditions, then write the test data into the message queue. If it is determined The test data does not meet the preset conditions, and an error message is fed back to the data sender associated with the electric vehicle;

The data analysis service is used to analyze the data in the message queue according to the preset protocol rules, obtain the analysis results, store the data in the message queue and the corresponding analysis results in the first database, and at the same time store the data in the message queue recently acquired The obtained test data and corresponding parsing results are cached in the second database;

The scheduled task service is used to perform periodic statistics on preset detection items based on the analysis results stored in the first database, obtain statistical results, and store the statistical results in a preset search engine;

A data push service, configured to push the test data cached in the second database and the corresponding analysis results to the front end for display;

The system application service is used to perform multi-dimensional analysis based on the test data cached in the second database, the corresponding analysis results and the statistical results stored in the preset search engine according to the current test items, and obtain the analysis results , and send the analysis results to the front end for display;

The streaming media service is used to obtain and store the video data associated with the electric vehicle, and send the video data to the front end for display.

The embodiment of the present invention provides a remote monitoring and testing method for electric vehicles, which is applied to the above-mentioned remote monitoring and testing system. The method includes:

Obtain the test data of the electric vehicle based on the wireless communication network through the data collection service, and screen the test data, if it is determined that the test data meets the preset conditions, then write the test data into the message queue, if it is determined that the The test data does not meet the preset conditions, and an error message is fed back to the data sender associated with the electric vehicle;

Analyze the data in the message queue according to the preset protocol rules through the data analysis service, obtain the analysis result, store the data in the message queue and the corresponding analysis result in the first database, and store the recently acquired The test data and corresponding parsing results are cached in the second database;

performing periodic statistics on preset detection items based on the analysis results stored in the first database through the scheduled task service, obtaining statistical results, and storing the statistical results in a preset search engine;

Pushing the test data cached in the second database and the corresponding analysis results to the front end for display through a data push service;

performing multi-dimensional analysis based on the test data cached in the second database, the corresponding analysis results and the statistical results stored in the preset search engine according to the current test items through the system application service, to obtain the analysis results, and Send the analysis results to the front end for display;

The video data associated with the electric vehicle is obtained through a streaming service, and the video data is sent to a preset server for storage, so that the front end can download and display the video data.

An embodiment of the present invention provides an electronic device, and the electronic device includes:

processor and memory;

The processor is used to execute the steps of the remote monitoring and testing method for electric vehicles described in any embodiment by calling the programs or instructions stored in the memory.

An embodiment of the present invention provides a computer-readable storage medium, the computer-readable storage medium stores programs or instructions, and the programs or instructions cause the computer to execute the remote monitoring and testing method for electric vehicles described in any embodiment. step.

Embodiments of the present invention have the following technical effects:

The purpose of remote monitoring and detection for electric vehicles is realized, the efficiency and accuracy of monitoring and detection are improved, and labor costs are saved.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a remote monitoring and testing system for electric vehicles provided by an embodiment of the present invention;

Fig. 2 is a schematic flow chart of a remote monitoring and testing method for electric vehicles provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The state requires that every electric vehicle needs to connect the real-time data of the vehicle to the national supervision system in accordance with the requirements of GB/T32960 "Technical Specifications for Electric Vehicle Remote Service and Management System", so as to facilitate the monitoring of electric vehicles, so as to ensure the lives and property of the people Safety. In view of this, an embodiment of the present invention provides a remote monitoring and testing system for electric vehicles, which is used for remote monitoring and testing of electric vehicles.

Fig. 1 is a schematic structural diagram of a remote monitoring and testing system for electric vehicles provided by an embodiment of the present invention. Referring to Fig. 1, the remote monitoring and testing system for electric vehicles specifically includes: data acquisition service 110, used to obtain test data of electric vehicles based on a wireless communication network, and screen the test data, if it is determined that the test data conforms to Preset conditions, then write the test data into the message queue, and if it is determined that the test data does not meet the preset conditions, feed back error prompt information to the data sender associated with the electric vehicle. Specifically, the message queue may be kafka, which is an open source stream processing system developed by the Apache Software Foundation, and is a high-throughput distributed publish-subscribe message system. In order to meet the real-time processing requirements of a large amount of data, the message queue can specifically be a kafka cluster, which includes multiple parallel kafkas to process more data at the same time. Similarly, the data collection service 110 can be deployed on multiple servers respectively, that is, each server is deployed with the data collection service 110, so as to collect more data at the same time. Further, before deploying multiple servers with data collection service 110, a load balancer Nginx can also be set up to evenly distribute a large amount of data to each server with data collection service 110, so as to improve system performance. Through the load balancer, the data can be well distributed, and the high availability of the data collection service can be ensured while improving the throughput. The application of the load balancer Nginx provides good support for the actual alarm detection project. Not only are there various types of alarms, among them, there are dozens of complex working conditions such as new energy three-electric system alarms and safety alarms. At the same time, the frequency of alarm data transmission is much higher than that of normal test data. At the same time, real-time messages and supplementary Send messages for simultaneous reception.

The test data is determined according to the current test items and test standards (such as the test standards specified in GB/T32960 "Technical Specifications for Electric Vehicle Remote Service and Management System") for the test items. That is, different test items correspond to different test data. Exemplarily, the test items according to GB/T32960 "Technical Specifications for Electric Vehicle Remote Service and Management System" include: login and logout test, vehicle driving test, vehicle alarm test, vehicle charging test and vehicle reissue test.

Exemplarily, when the test item is a charging test, the test data at least includes: driving motor data, vehicle positioning data, voltage data of the charging energy storage device, and temperature data of the charging energy storage device.

Wherein, the test data acquired by the data collection service may have quality or safety problems, so the test data needs to be screened, so as to screen and filter problematic test data. Exemplarily, screening the test data includes:

Determine whether the test data is message data conforming to a preset format;

Determine whether the test data is message data including a preset field, wherein the preset field may be identification information for indicating a currently-conducted test item; determine whether the test data is assembled and verified according to an exclusive OR check method code message data, wherein, according to the XOR check method assembly check code is usually determined by the communication protocol adopted; if the test data is message data conforming to the preset format and includes text data and is the message data assembled with the check code according to the XOR check method, then it is determined that the test data meets the preset condition; if the test data is not the message data of the preset format or does not include the preset field or the message data that is not assembled with the check code according to the XOR check method, it is determined that the test data does not meet the preset condition.

Referring to Fig. 1, the remote monitoring and testing system for electric vehicles also includes: a data analysis service 120, which is used to analyze the data in the message queue according to the preset protocol rules, obtain the analysis result, and store the data in the message queue The data and the corresponding analysis results are stored in the first database, and the most recently acquired test data and the corresponding analysis results are cached in the second database. Among them, the data parsing service can specifically be the stream processing program SparkStreaming, which has the advantages of good integration and large data throughput, which is more suitable for the remote monitoring and testing system with large data volume and high frequency, and continuously consumes kafKa message queue through Spark Streaming The data message in the system is analyzed according to the system protocol, and the original data message is converted into data in the form of a class object and stored in the first database - the HBase cluster. Hbase is an open source non-relational distributed database, which has the characteristics of real-time reading and writing and random access to large-scale data sets. It is more suitable for the remote monitoring and testing system of this embodiment. It can not only accurately segment each message At the same time, it can accurately analyze the message, so that relevant personnel can intuitively understand the true meaning of the message information, which greatly improves the friendliness of message interpretation. At the same time, the latest data packets are stored in the second database Redis cluster for real-time query.

Referring to Fig. 1, the remote monitoring and testing system for electric vehicles also includes: a scheduled task service 130, which is used to perform periodic statistics on preset detection items based on the analysis results stored in the first database, obtain statistical results, and The statistical results are stored in a preset search engine. Among them, the scheduled task service 130 periodically counts the detection items in the process based on Hive and Mapreduce, and performs statistics in different dimensions for different test items, such as charging test, driving test, etc., and stores the statistical results in The default search engine Elasticsearch cluster will provide data basis and support for the final judgment results of the verifiers. Hive is a data warehouse tool that maps structured data files into a database table and provides SQL query functions to convert SQL statements into MapReduce tasks for execution. Its advantage is low learning costs. MapReduce is a programming model for computing large amounts of data. Elasticsearch is a search server that provides a distributed multi-user full-text search engine that can easily search, analyze and explore large amounts of data.

Exemplarily, the periodic statistics of preset detection items based on the analysis results stored in the first database to obtain statistical results includes at least one of the following:

Periodically counting the total mileage of the electric vehicle to obtain a statistical result of the total mileage;

Perform periodic statistics on the number of failures of the electric vehicle to obtain a statistical result of the total number of failures;

Periodically counting the total duration of driving of the electric vehicle to obtain a statistical result of the total duration;

The speed of the electric vehicle is periodically counted to obtain the statistical result of the speed distribution.

Referring to FIG. 1 , the remote monitoring and testing system for electric vehicles further includes: a data push service 140 for pushing the test data cached in the second database and the corresponding analysis results to the front end for display. The data push service uses WebSocket technology to push the real-time cached data to the front-end display in real time, and can view the original message and analysis results in real time, so that the verification personnel can monitor and grasp the test situation in real time, and troubleshoot problems and errors in time.

Referring to Fig. 1, the remote monitoring and testing system for electric vehicles also includes: a system application service 150, which is used to store the test data and corresponding analysis results cached in the second database based on the currently performed test items and stored in the The statistical results of the preset search engine are analyzed in multiple dimensions to obtain the analysis results, and the analysis results are sent to the front end for display.

Exemplarily, if the current test item is a charging test, the multi-dimensional analysis is performed based on the test data cached in the second database and the corresponding analysis results and statistical results stored in the preset search engine, Get analysis results, including:

Determine whether there is a reverse charging current based on the analysis results, and the duration of the reverse charging current reaches a preset duration, and if the duration of the reverse charging current reaches a preset duration, then determine the analysis result of the mechanism verification passing; according to According to the test standard GB/T32960 "Technical Specifications for Remote Service and Management System of Electric Vehicles", the preset time is 15 minutes, that is, the charging test must ensure that 15 minutes after plugging in the charging gun (the reverse charging current can be detected) Data; usually, the total number of data packets >= 90, the time difference between the first packet of data and the last packet of data >= 14.5 minutes, and the current in each packet of data is less than 0, when the above conditions are met, the mechanism can be determined Validate the analysis results passed.

Perform null rate, zero rate and/or invalid value rate analysis based on the analysis results to obtain the first analysis result; wherein, the meaning of the null rate is the proportion of data packets whose data units are empty in the test data , the calculation method is: Null value rate = number of data packets whose data unit is empty/total number of test data packets; the meaning of zero value rate is the proportion of data packets whose data unit is displayed as zero in the test data , the calculation method is: zero value rate = the number of data messages whose data unit is displayed as zero in the test data/the total number of test data messages; the meaning of the invalid value rate is that the data unit in the test data is displayed as an invalid value (FF) The proportion of the data packets, the calculation method is: invalid value rate = the number of data packets whose data unit is displayed as an invalid value (FF) in the test data / the total number of test data packets.

Determine the positive or negative of the charging current based on the analysis results, and determine the rate of change of the remaining power of the car battery to obtain a second analysis result; wherein, the analysis results at least include the analysis results that the mechanism check passes, the The first analysis result and the second analysis result.

If the current test item is a charging test, the multi-dimensional analysis is performed based on the test data cached in the second database and the corresponding analysis results and the statistical results stored in the preset search engine to obtain the analysis results, Also includes:

Determine whether the charging test meets the test conditions based at least on the analysis results of the passing of the mechanism check, the first analysis results, and the second analysis results; if it is determined that the charging test does not meet the test conditions, determine the reference data associated with the test failure ; Wherein, the analysis result also includes the reference data; the system application service is also used to: generate a charging test report based on the set report template, and send the charging test report to the front end for display, wherein, if determined When the charging test does not meet the test conditions, the charging test report includes the reference data. For example, according to the actual situation of charging, through information fusion technology, analyze the rate of change of the charging current and the remaining battery power, determine whether the charging test meets the test conditions, that is, determine whether the charging test is successful, if it is determined that the charging test fails, determine that the test failed Associated reference data. For example, it is determined through analysis that the reason for the failure of the charging test is that the rate of change of the remaining battery capacity does not meet the requirements, and the rate of change of the remaining battery capacity obtained during the charging test is used as parameter data for error feedback, which is convenient for relevant personnel to troubleshoot. For example, it is determined through analysis that the reason for the failure of the charging test is that the charging current is zero, and the charging current data obtained during the charging test process is used as parameter data for error feedback, which is convenient for relevant personnel to troubleshoot.

Exemplarily, if the current test item is an alarm test, the multi-dimensional analysis is performed based on the test data cached in the second database and the corresponding analysis results and statistical results stored in the preset search engine, Get analysis results, including:

Determining an alarm time point based on the test data, and a first number of alarm messages within a first preset time period before the alarm time point, and within a second preset time period after the alarm time point The second number of alarm messages; if the first number exceeds the first threshold, and the sum of the first number and the second number exceeds the second threshold, determine the analysis result that the mechanism check passes. Wherein, the first threshold, the second threshold, the first preset time period and the second preset time period are according to the test standard GB/T32960 "Technical Specifications for Electric Vehicle Remote Service and Management System" The regulations are determined. Usually, the first threshold is 29, the second threshold is 60, the first preset time period is 35s, and the second preset time period is 40s. In other words, the number of reissued data packets within 35s before the alarm time point >=29 , and the sum of the number of real-time data packets acquired within 40s after the alarm time point >=60.

Referring to Fig. 1, the remote monitoring and testing system for electric vehicles also includes: a streaming media service 160 for obtaining video data associated with the electric vehicle, and sending the video data to a preset server for storage, for front-end The video data is downloaded and displayed to meet the collection, storage and display of detection videos during the test, and to verify the authenticity of the test results. Specifically, the video data associated with the electric vehicle is, for example, the video obtained by video recording of the current electric vehicle to be tested. When performing the charging test project, the electric vehicle needs to be plugged in a charging gun. By recording the video of the electric vehicle, it can be combined with Video information confirms whether the currently received test data is consistent with the electric vehicle, which can improve the accuracy of remote monitoring and detection. In general, the consistency of remote monitoring and detection is determined based on the video data and the test data.

It should be noted that the third database shown in FIG. 1 stores business data, such as account data registered in the remote monitoring and testing system, vehicle application data (including vehicle model, applied test items, etc.). When displaying test data and test result data at the front end, business data can be displayed at the same time to ensure the consistency between test data, test results, test items and test vehicles, and achieve the purpose of improving test accuracy. The front-end display service is used to execute the front-end display logic and realize the function of displaying related interfaces and data.

The remote monitoring and testing system for electric vehicles provided by the embodiment of the present invention has the functions of remote data collection, data screening, data analysis, data statistics, data analysis, data storage, data query, data display, and automatic generation of test reports, etc., realizing For the remote monitoring and testing of electric vehicles, the test efficiency is improved and the labor cost is reduced; by adopting technologies such as distributed storage and big data processing components, the multi-concurrency and high-frequency data are processed efficiently, and the test function is stable and efficient. Operation; through the statistical analysis of the data, it provides reliable support for the verification of the authenticity and rationality of the data.

On the basis of the above-mentioned embodiments, the embodiment of the present invention also provides a remote monitoring and testing method for electric vehicles, which is applied to the above-mentioned remote monitoring and testing system, referring to a remote monitoring and testing method for electric vehicles shown in Figure 2 A flow diagram of the method, the method may include the following steps:

Step 210: Obtain the test data of the electric vehicle based on the wireless communication network through the data collection service, and screen the test data. If it is determined that the test data meets the preset conditions, then write the test data into the message queue. If It is determined that the test data does not meet the preset condition, and an error message is fed back to the data sender associated with the electric vehicle.

Step 220: Analyze the data in the message queue through the data analysis service according to the preset protocol rules, obtain the analysis result, store the data in the message queue and the corresponding analysis result in the first database, and save the latest The acquired test data and corresponding analysis results are cached in the second database.

Step 230: Periodically count the preset detection items based on the analysis results stored in the first database through the scheduled task service, obtain the statistical results, and store the statistical results in the preset search engine.

Step 240, push the test data cached in the second database and the corresponding parsing results to the front end for display through the data push service.

Step 250, use the system application service to perform multi-dimensional analysis based on the test data cached in the second database, the corresponding analysis results, and the statistical results stored in the preset search engine according to the current test items, and obtain the analysis results, and send the analysis results to the front end for display.

Step 260: Obtain video data associated with the electric vehicle through a streaming media service, and send the video data to a preset server for storage, so that the front end can download and display the video data.

FIG. 3 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As shown in FIG. 3 , an electronic device 400 includes one or more processors 401 and a memory 402 .

The processor 401 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 400 to perform desired functions.

Memory 402 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and/or a cache memory (cache). The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, and the like. One or more computer program instructions can be stored on the computer-readable storage medium, and the processor 401 can execute the program instructions to realize the remote monitoring of electric vehicles in any embodiment of the present invention described above Test system and/or other desired functionality. Various contents such as initial external parameters and thresholds may also be stored in the computer-readable storage medium.

In an example, the electronic device 400 may further include: an input device 403 and an output device 404, and these components are interconnected through a bus system and/or other forms of connection mechanisms (not shown). The input device 403 may include, for example, a keyboard, a mouse, and the like. The output device 404 can output various information to the outside, including early warning prompt information, braking force and so on. The output device 404 may include, for example, a display, a speaker, a printer, a communication network and remote output devices connected thereto, and the like.

Of course, for simplicity, only some components related to the present invention in the electronic device 400 are shown in FIG. 3 , and components such as bus, input/output interface, etc. are omitted. In addition, according to specific application conditions, the electronic device 400 may also include any other appropriate components.

In addition to the above-mentioned methods and devices, embodiments of the present invention may also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the functions provided by any of the embodiments of the present invention. The invention relates to the steps of a remote monitoring and testing method for electric vehicles.

The computer program product can be written in any combination of one or more programming languages for executing the program codes for the operations of the embodiments of the present invention, and the programming languages include object-oriented programming languages, such as Java, C++, etc. , also includes conventional procedural programming languages, such as the "C" language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server to execute.

In addition, an embodiment of the present invention may also be a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the processor executes a program provided by any embodiment of the present invention. The steps of a remote monitoring and testing method for electric vehicles.

The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, but not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above.

It should be noted that the terms used in the present invention are only used to describe specific embodiments, but not to limit the scope of the application. As shown in the description of the present invention, words such as "a", "an", "an" and/or "the" do not refer to the singular, and may also include the plural, unless the context clearly suggests an exception. The term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed, Alternatively, elements inherent in such a process, method, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element.

It should also be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the invention. Unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected" and so on should be interpreted in a broad sense, for example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection , can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal connection between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims (10)

1. A remote monitoring and testing system for electric vehicles, characterized in that it comprises: The data collection service is used to obtain the test data of the electric vehicle based on the wireless communication network, and to screen the test data. If it is determined that the test data meets the preset conditions, then write the test data into the message queue. If it is determined The test data does not meet the preset conditions, and an error message is fed back to the data sender associated with the electric vehicle; The data analysis service is used to analyze the data in the message queue according to the preset protocol rules, obtain the analysis results, store the data in the message queue and the corresponding analysis results in the first database, and at the same time store the data in the message queue recently acquired The received test data in the message queue and the corresponding analysis results are cached in the second database; The scheduled task service is used to perform periodic statistics on preset detection items based on the analysis results stored in the first database, obtain statistical results, and store the statistical results in a preset search engine; A data push service, configured to push the test data cached in the second database and the corresponding analysis results to the front end for display; The system application service is used to perform multi-dimensional analysis based on the test data cached in the second database, the corresponding analysis results and the statistical results stored in the preset search engine according to the current test items, and obtain the analysis results , and send the analysis results to the front end for display; The streaming media service is used to obtain the video data associated with the electric vehicle, and send the video data to a preset server for storage, so that the front end can download and display the video data. 2. The remote monitoring and testing system according to claim 1, wherein the test data is determined according to the current test item and the test standard for the test item, and when the test item is a charging test, The test data at least includes: driving motor data, vehicle positioning data, voltage data of the charging energy storage device, and temperature data of the charging energy storage device. 3. The remote monitoring and testing system according to claim 1, wherein screening the test data comprises: Determine whether the test data is message data conforming to a preset format; determining whether the test data is message data including preset fields; Determine whether the test data is the message data of the assembled check code according to the XOR check method; If the test data is message data that conforms to the preset format and is message data that includes preset fields and is message data that assembles a check code according to the XOR check method, then it is determined that the test data conforms to the preset condition; If the test data is not the message data conforming to the preset format or the message data including the preset field or the message data assembled with the verification code according to the XOR check method, it is determined that the test data does not meet the preset set conditions. 4. The remote monitoring and testing system according to claim 1, wherein the periodic statistics of preset detection items based on the analysis results stored in the first database to obtain statistical results includes at least one of the following kind: Periodically counting the total mileage of the electric vehicle to obtain a statistical result of the total mileage; Perform periodic statistics on the number of failures of the electric vehicle to obtain a statistical result of the total number of failures; Periodically counting the total duration of driving of the electric vehicle to obtain a statistical result of the total duration; The speed of the electric vehicle is periodically counted to obtain the statistical result of the speed distribution. 5. The remote monitoring and testing system according to claim 1, wherein if the current test item is a charging test, the test data cached in the second database and the corresponding analysis results and stored in the The statistical results of the preset search engine are analyzed in multiple dimensions to obtain the analysis results, including: Determine whether there is a reverse charging current based on the analysis result, and the duration of the reverse charging current reaches a preset duration, and if the duration of the reverse charging current reaches a preset duration, then determine the analysis result that the mechanism check passes; Performing null rate, zero rate and/or invalid rate analysis based on the analysis results to obtain a first analysis result; Determining the positive or negative of the charging current based on the analysis results, and determining the rate of change of the remaining power of the vehicle battery, to obtain a second analysis result; Wherein, the analysis result includes at least the analysis result of passing the mechanical verification, the first analysis result and the second analysis result. 6. The remote monitoring and testing system according to claim 5, wherein if the currently-conducted test item is a charging test, the test data cached in the second database and the corresponding analysis results and Multi-dimensional analysis is performed on the statistical results stored in the preset search engine to obtain analysis results, which also include: determining whether the charging test satisfies a test condition based on at least an analysis result of passing the mechanical check, the first analysis result, and the second analysis result; If it is determined that the charging test does not meet the test conditions, determine the reference data associated with the test failure; Wherein, the analysis result also includes the reference data; The system application service is also used for: Generate a charging test report, and send the charging test report to the front end for display, wherein, if it is determined that the charging test does not meet the test conditions, the charging test report includes the reference data. 7. The remote monitoring and testing system according to claim 1, wherein, if the currently performed test item is an alarm test, the test data and corresponding analysis results stored in the second database based on the cache and stored in the The statistical results of the preset search engine are analyzed in multiple dimensions to obtain the analysis results, including: Determining an alarm time point based on the test data, and a first number of alarm messages within a first preset time period before the alarm time point, and within a second preset time period after the alarm time point the second number of alarm messages; If the first quantity exceeds a first threshold, and the sum of the first quantity and the second quantity exceeds a second threshold, then determine an analysis result that the mechanical check passes. 8. A remote monitoring and testing method for electric vehicles, applied to the remote monitoring and testing system according to any one of claims 1-7, characterized in that it comprises: Obtain the test data of the electric vehicle based on the wireless communication network through the data collection service, and screen the test data, if it is determined that the test data meets the preset conditions, then write the test data into the message queue, if it is determined that the The test data does not meet the preset conditions, and an error message is fed back to the data sender associated with the electric vehicle; Analyze the data in the message queue according to the preset protocol rules through the data analysis service, obtain the analysis result, store the data in the message queue and the corresponding analysis result in the first database, and store the recently acquired The test data in the message queue and the corresponding analysis results are cached in the second database; performing periodic statistics on preset detection items based on the analysis results stored in the first database through the scheduled task service, obtaining statistical results, and storing the statistical results in a preset search engine; Pushing the test data cached in the second database and the corresponding analysis results to the front end for display through a data push service; performing multi-dimensional analysis based on the test data cached in the second database, the corresponding analysis results and the statistical results stored in the preset search engine according to the current test items through the system application service, to obtain the analysis results, and Send the analysis results to the front end for display; The video data associated with the electric vehicle is obtained through a streaming service, and the video data is sent to a preset server for storage, so that the front end can download and display the video data. 9. An electronic device, characterized in that the electronic device comprises: processor and memory; The processor is used to execute the steps of the remote monitoring and testing method for electric vehicles according to claim 8 by calling the programs or instructions stored in the memory. 10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a program or an instruction, and the program or instruction causes the computer to perform a remote monitoring test for electric vehicles as claimed in claim 8 method steps.

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