CN116793705A - New energy special vehicle offline detection method, device, system and electronic equipment - Google Patents
New energy special vehicle offline detection method, device, system and electronic equipment Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
Abstract
The embodiment of the invention provides a method for detecting the offline of a new energy special vehicle, which comprises the following steps: detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, determining the electric detection item according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected, detecting a safety detection item of the vehicle to be detected through safety detection equipment to obtain safety detection data of the vehicle to be detected, determining the safety detection item according to equipment parameters of the safety detection equipment, and performing data processing on the electric detection data and the safety detection data through an upper computer to obtain a whole vehicle detection report of the vehicle to be detected. By the method, the vehicle to be detected is detected, and the problems that the vehicle detection is incomplete and the locking problem is not fast enough in the conventional technology at present are solved. The fault detection rate is improved, and the delivery safety of the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of automobile detection and maintenance, in particular to a method, a device, a system, electronic equipment and a storage medium for detecting new energy special vehicles in an offline mode.
Background
With the development of the automobile industry, vehicles are not only used as a mechanical object for movement, but also used as a multimedia platform on which a plurality of electronic devices are mounted, and are obvious on the new energy special vehicles. In the traditional vehicle maintenance technology, maintenance on the mechanical structure of the vehicle is reserved, but the maintenance on the electronic equipment does not have a unified procedure, which is a challenge for detecting and maintaining the new energy automobile. For new energy special vehicles, generally, the failure of the electronic device can only be judged through experience of maintenance personnel, if a certain part of the automobile fails and cannot be found and removed in time, the result may cause serious consequences of the death of the automobile. If a component fails to operate due to a fault, a significant economic loss may result. Therefore, the existing detection method for the new energy special vehicle has the problems of low detection accuracy and incomplete detection.
Disclosure of Invention
The embodiment of the invention provides a new energy special vehicle offline detection method, which aims to solve the problems of lower detection accuracy and incomplete detection in the existing vehicle detection method. The electric inspection equipment and the security inspection equipment are used for carrying out project customization detection on the vehicle, so that comprehensive vehicle detection content can be covered, fault positions can be accurately positioned through the equipment, more accurate vehicle conditions can be obtained to guide detection personnel to carry out vehicle condition assessment, and the efficiency of vehicle detection work is improved.
In a first aspect, an embodiment of the present invention provides a method for detecting a new energy special vehicle offline, which is characterized in that the method is used for detecting a state of the vehicle, and includes the following steps:
detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, wherein the electric detection item is determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected;
detecting a security inspection item of a vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, wherein the security inspection item is determined according to equipment parameters of the security inspection equipment;
and carrying out data processing on the electric inspection data and the security inspection data through an upper computer to obtain a whole vehicle detection report of the vehicle to be detected.
Optionally, the method for detecting the new energy special vehicle offline is characterized in that before the electric detection item of the vehicle to be detected is detected by the electric control detection device to obtain the electric detection data of the vehicle to be detected, the method further comprises:
acquiring basic information of a vehicle to be detected through a first terminal device, and acquiring a first interface of the electric detection device;
Checking basic information of the vehicle to be detected through checking equipment;
determining a second interface of the vehicle to be detected according to the basic information of the checked vehicle to be detected;
and determining an electric inspection item of the vehicle to be detected according to the first interface of the electric inspection device and the second interface of the vehicle to be detected.
Optionally, the method for detecting the new energy special vehicle offline is characterized in that before the security inspection items of the vehicle to be detected are detected by the security inspection equipment to obtain security inspection data of the vehicle to be detected, the method further comprises:
acquiring equipment parameters of the security inspection equipment;
and determining a security inspection project of the vehicle to be detected according to the equipment parameters.
Optionally, the method for detecting the new energy special vehicle offline is characterized in that the electrical detection items include electronic equipment parameter detection and fault code diagnosis, the electrical detection items of the vehicle to be detected are detected by the electrical detection equipment, and electrical detection data of the vehicle to be detected are obtained, and the method comprises the following steps:
acquiring electronic equipment parameters of the vehicle to be detected through an electric detection device, wherein the electronic equipment parameters comprise, but are not limited to, current data and temperature data of a main controller, voltage data and current data of a battery pack, rotating speed data and temperature data of a motor and state of an SOC;
Acquiring a fault code of the vehicle to be detected through electric detection equipment, and reading and clearing the fault code to obtain a data flow value of the fault code;
and determining electric inspection data of the vehicle to be inspected based on the electronic equipment parameters and the data flow value, and interacting with the existing MES system data of the host factory.
Optionally, the method for detecting the new energy special vehicle offline is characterized in that the security inspection items include vehicle speed detection, wheel weight detection, lamplight detection and brake detection, the security inspection items of the vehicle to be detected are detected by security inspection equipment to obtain security inspection data of the vehicle to be detected, and the method comprises the following steps:
acquiring related data of the vehicle to be detected through a vehicle speed detection table, a wheel weight detection table, a light detector and a brake detection table;
security data is determined based on the travel data of the detected vehicle.
Optionally, the method for detecting the new energy special vehicle offline is characterized in that the method for processing the electric detection data and the security detection data by the upper computer to obtain a whole vehicle detection report of the vehicle to be detected comprises the following steps:
acquiring electric detection data of the vehicle to be detected according to an electric detection item;
Acquiring security inspection data of the vehicle to be detected according to the security performance detection item;
and printing the whole vehicle detection report based on the electric detection data and the security detection data and carrying out data interaction through an MES system.
In a second aspect, an embodiment of the present invention further provides a new energy special vehicle offline detection system, including: the system comprises an electric inspection system, a security inspection system, an upper computer control system and a networking interaction system.
The electric detection system detects electric detection items of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, and the electric detection items are determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected; the security inspection system detects security inspection items of the vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, and the security inspection items are determined according to equipment parameters of the security inspection equipment; and the upper computer system performs data processing on the electric inspection data and the security inspection data through the upper computer to obtain a whole vehicle detection report of the vehicle to be detected and performs data interaction with the MES system.
In a third aspect, an embodiment of the present invention further provides a new energy special vehicle offline detection device, where the new energy special vehicle offline detection device includes:
The first acquisition module is used for detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, and the electric detection item is determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected;
the second acquisition module is used for detecting a security inspection item of a vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, and the security inspection item is determined according to equipment parameters of the security inspection equipment;
and the third acquisition module is used for carrying out data processing on the electric inspection data and the security inspection data through the upper computer to obtain a whole vehicle detection report of the vehicle to be detected and carrying out data interaction with the MES system.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including: the system comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes the steps in the method for detecting the offline of the new energy special vehicle provided by the embodiment of the invention when executing the computer program.
In a fifth aspect, an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, where the computer program when executed by a processor implements steps in the method for detecting offline of a new energy special vehicle provided by the embodiment of the present invention.
In the embodiment of the invention, the electric inspection items of the vehicle to be detected are detected through the electric inspection equipment to obtain electric inspection data of the vehicle to be detected, the electric inspection items are determined according to the first interface of the electric inspection equipment and the second interface of the vehicle to be detected, the safety inspection items of the vehicle to be detected are detected through the safety inspection equipment to obtain safety inspection data of the vehicle to be detected, the safety inspection items are determined according to the equipment parameters of the safety inspection equipment, and the upper computer is used for carrying out data processing on the electric inspection data and the safety inspection data to obtain the whole vehicle detection report of the vehicle to be detected. The electric inspection equipment and the security inspection equipment are used for carrying out project customization detection on the vehicle, so that comprehensive vehicle detection content can be covered, the fault position is accurately positioned through the equipment, more accurate vehicle conditions can be obtained to guide inspection personnel to carry out vehicle condition evaluation, and the efficiency of vehicle detection work is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a vehicle detection method provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a vehicle detection system according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a vehicle detecting device provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, fig. 1 is a flowchart of a new energy special vehicle offline detection method provided by an embodiment of the invention. The vehicle detection method includes the steps of:
101. and detecting an electric detection item of the vehicle to be detected through electric detection equipment to obtain electric detection data of the detected vehicle.
In the embodiment of the invention, the detection method can be deployed in a vehicle detection system, the vehicle detection system comprises electric detection equipment and safety detection equipment, the electric detection equipment can be composed of a plurality of components such as a diagnostic instrument and a diagnostic interface, the safety detection equipment can be composed of a plurality of devices such as a vehicle speed detection table, a wheel weight detection table, a lamplight detector and a brake detection table, and the devices can be deployed in a vehicle detection workshop.
The detection workshop can drive the electric detection equipment through industrial voltage, and the accuracy and reliability of an electric detection test result can be guaranteed only by ensuring that the temperature and the humidity of the workshop are controlled in the detection requirement of the electric detection equipment.
The special vehicle with new energy can be a vehicle with negative special service, special vehicle license plates hung, and alarm and sign lamps installed. Such as ambulances, fire-fighting vehicles, police vehicles, engineering rescue vehicles, military supervision vehicles, etc.
Specifically, the detection workshop can drive the detection equipment by being provided with a 50Hz three-phase five-wire industrial voltage of 220V or 380V, the dew point temperature of the workshop is kept between (2) and (10), the temperature of the workshop is kept between (0) and (45) DEG C, the relative humidity of the workshop is 95% at the maximum, and the detection workshop is provided with a Bluetooth connector or a WiFi network working in a global open 2.4GHz ISM frequency band for wireless connection use of the detection equipment of the workshop.
In this embodiment, the electrical inspection item is determined according to a first interface of the electrical inspection device and a second interface of the vehicle to be inspected.
The first interface of the electric inspection device can be an interface built in the electric inspection device system, and is connected with the second interface of the vehicle to be inspected through the first interface to acquire data of the vehicle to be inspected. The second interface is an interface built in the vehicle system, and is usually connected to the vehicle built-in memory system, and the vehicle information including the vehicle braking distance, the vehicle engine speed, and other data related to the vehicle running can be read through the second interface.
And determining the interface scanning result of the electric inspection item after the electric inspection equipment is connected with the vehicle to be inspected. From the results of the scan, manufacturer information of the vehicle is determined, which items the vehicle can detect. In general, the electrical inspection item can read related characteristic information such as data of an SOC (State of Charge) in an electronic control unit, data of a battery pack current, a motor temperature and a controller temperature through a diagnostic instrument. The SOC refers to the state of the vehicle battery pack, i.e., the ratio of the stored electric energy in the battery pack to the maximum storage capacity thereof, and is usually implemented in percentage. And the diagnostic interface of the electric inspection device is connected with the vehicle to be inspected to acquire the electronic equipment parameter data of the vehicle to be inspected.
The diagnostic instrument has the functions of diagnosing the electric control, the battery, the motor and the special accessory information of the vehicle, and can read, detect and diagnose faults. The diagnostic apparatus can be used for brushing (writing and checking) information of an ECU (Electronic Control Unit ) and a VIN (Vehicle Identification Number, vehicle identification number) code, and can also be used for scanning, brushing and reading of a VIN related information code. The ECU code mentioned above refers to a unique identification code of an electronic control unit on the vehicle. Each ECU has a unique identification code that can be used to diagnose and repair vehicle faults. The VIN code is also called a frame number and can be used for judging whether the vehicle to be electrically detected is detected on the electric detection equipment or not and reading electric detection data. The detector diagnoses the functions of the electric control, the battery, the motor, the special accessories and the like of the vehicle through the diagnostic instrument, and detects and diagnoses the functions of the electric control, the battery, the motor and the like.
Specifically, the connection between the vehicle to be detected and the electric detection equipment CAN be realized through RJ45, USB and CAN interfaces, vehicle electric detection data CAN be obtained through the diagnostic instrument, and the vehicle electric detection data CAN be fed back to a screen of the diagnostic instrument. The RJ45, USB and CAN are all modes of connecting the vehicle to the electrical inspection device, the RJ45 interface is a network interface for connecting the device by using an RJ45 connector, the USB interface is a standard interface for transmitting data between a plurality of different peripheral devices, and the CAN is a vehicle network protocol, which uses a serial communication protocol to allow communication between different Electronic Control Units (ECU) so as to realize various functions of the vehicle system. The detection personnel can upload and locally store the electric detection data through the detection requirement of the user, and the electric detection data can be used as a reference value of an electric detection project when the same detection vehicle is subjected to secondary return detection next time. The identification of the same detected vehicle can be confirmed by reading and writing the VIN code according to the diagnostic instrument.
More specifically, after the detection vehicle is driven to an electric detection station, a detection personnel inserts an OBD (On Board Diagnostics, vehicle-mounted diagnosis) connecting wire, then rotates a key switch to an ON grade, after scanning or inputting a vehicle guiding number, a line-down detection system enters an initialization interface, after initialization, ECU types configured according to the vehicle type are diagnosed one by one (code reading and code clearing), electronic control, battery, motor and electric vehicle special accessory information is detected, and after reading and partial function detection and fault diagnosis are carried out, prompts are displayed ON a diagnostic instrument interface, and data are recorded.
The OBD connecting wire is a tool for automobile diagnosis, and can be connected with an OBD interface and a diagnosis instrument of an automobile so as to read fault codes and real-time data of the automobile.
The off-line detection system can be a system on the electric detection equipment, and the system can be connected with the vehicle through modularized equipment on the electric detection equipment, such as a diagnostic instrument, acquire basic data of the vehicle, and upload and locally store the electric detection data in a networking way.
102. And detecting a security inspection item of the vehicle to be detected through security inspection equipment to obtain security inspection data of the detected vehicle.
In the embodiment of the invention, the security inspection items can comprise items such as vehicle speed detection, wheel weight detection, lamplight detection, brake detection and the like. The built-in sensor of the test platform captures the security inspection data of the vehicle on the test platform and uploads or locally stores the security inspection data according to the requirements of testers, and the security inspection data can be used as a reference value of security inspection items when the same vehicle is detected for the next time and returned for the second time. The identification of the same detected vehicle can be confirmed by reading and writing the VIN code according to the diagnostic instrument.
The security items are determined by parameters of the security device. In practical embodiments, it is necessary to determine how much detection can be performed by the security inspection device according to the parameters of the device.
Specifically, for a basic vehicle speed detection platform, the maximum vehicle speed detection can only be within 0-200 km/h, while for a professional racing vehicle speed detection platform, the detection platform is required to be capable of detecting within 0-400 km/h.
The parameters of the security inspection equipment are determined by detection standards in the detection industry.
In particular, the parameters of the security inspection equipment include, but are not limited to, detection standards which are required to pass standard methods such as GB 21861-2014 motor vehicle security technology inspection projects and methods, GB 38900_2020 motor vehicle security technology inspection projects and methods and the like.
Specifically, the vehicle speed detection platform monitors the vehicle speed in real time through the platform sensor, and automatically reads and stores vehicle speed data. The speed measurement device has the speed recording condition from static to high-speed running, the allowable speed measurement range is controlled to be between 0 and 120km/h under the normal condition, the speed detection platform has higher accuracy, and the error generated by the measurement of the rotating speed through the configuration of the special photoelectric code is small, so that the reliable measurement result is ensured.
The vehicle speed detection platform is used for detecting data such as vehicle speed, braking distance and the like, and the detection platform needs to meet the maximum vehicle speed of the vehicle, can bear the weight of the vehicle and carry out adaptive module adjustment on the type of the vehicle. It has certain requirements on the structure and detection capability of the table body.
Specifically, the vehicle speed detection platform can allow a vehicle with the weight of up to 3T to perform a vehicle speed test by being provided with a pneumatic lifting mechanism. The device can be also provided with a detection roller with the rotating speed of 1km/h approximately equal to 27.927r/min, the diameter of the detection roller can be 190mm, the length of the detection roller can be 900mm, the center distance between the front shaft roller and the rear shaft roller of the detection roller can be 380mm, the inner span of the detection roller can be 700mm, the outer span of the detection roller can be 2500mm, the external dimension of the detection roller is 3000 multiplied by 725 multiplied by 380mm, and a driven driving method is adopted. The whole vehicle speed detection table equipment weighs 600kg, needs AC single-phase 220V/50Hz electromagnetic valve voltage with grounding to drive, the equipment air source air pressure is controlled between 0.5 and 0.6MPa, the equipment temperature requirement for a workshop is between 0 and 40 ℃, and the testing environment variable is ensured not to influence the testing under the condition that the workshop environment humidity is less than or equal to 90 percent.
The wheel weight measuring platform can measure the wheel mass, the axle load mass and the whole vehicle mass of the vehicle. And then the measurement data is collected by the equipped high-precision sensor and fed back to the detection system. The weight bench can select a single shaft or a double shaft for measurement according to different types of vehicles. It has certain requirements on the structure and detection capability of the table body.
Specifically, the wheel weight measuring platform can obtain the capability of bearing 3000KG by configuring a high-strength steel plate integrated platform body, the area of a carrying plate carried by the wheel weight measuring platform reaches 1100 multiplied by 600mm, the span inside and outside the plate reaches 615mm and 2815mm respectively, the weight of the whole equipment reaches 454KG, the equipment has the temperature requirement of 0-40 ℃ for a workshop, and the testing environment variable is ensured not to influence the testing under the condition that the humidity of the workshop environment is less than or equal to 90%.
The light detector detects a vehicle light system through a built-in power supply. After the automobile lamplight system is connected through the lamplight detector, regional power supply is carried out inside the lamplight system, and lamps in all regions are checked.
Specifically, when the light detector detects the headlamp, the vehicle is operated to turn on the headlamp after the light detector is connected to the vehicle. At this time, the light detector screen will display the voltage and the current passing through the headlight of the car, and judge whether the detected voltage and current accord with the threshold value or not through the preset current and the preset voltage, so as to avoid the car light from being burnt out. If the detected data does not fit within the threshold, a lamp burn out or insufficient driving of the lamp may occur. The lamplight detector records the data and sends the data to the upper computer.
The brake detection table is used for testing the braking force performance of the vehicle, can detect the braking performance of the vehicle, comprises the aspects of braking force size, uniformity, stability and the like, is provided with a high-precision inlet technology sensor, can transmit test data to a visual power detection system in real time, and can carry out visual detection on the data through a memory function pointer digital display instrument, and the test precision is reliable and stable. It has certain requirements on the structure and detection capability of the table body.
Specifically, the brake detection table can be provided with a high-strength steel plate integrated table body, so that the bearing capacity of the brake detection table can reach 3000kg at most, an international leading sand-bonding roller technology and a special speed reducer are adopted, the brake detection table can detect the braking force of 0-10000N, and a standard RS-232 serial communication interface can be matched, so that the brake detection table can upload detection data to an upper computer through the interface. The diameter of the sand-bonding roller is 245mm, the length of the sand-bonding roller is 900m, the height difference of the two rollers is 30mm, and the adhesion coefficient meets the (dry/wet) 0.80/0.60 standard of the road adhesion coefficient. The integral braking test bench needs to drive the roller through an AC 3 phase 380V/50Hz motor power supply with grounding, and also needs to drive the braking and lifting system through an AC single-phase 220V/50Hz electromagnetic valve voltage with grounding. The equipment is required to be at 0-40 ℃ for the workshop temperature, and the environment humidity of the workshop is less than or equal to 90%, so that the testing environment variable is ensured not to influence the testing.
103. And carrying out data processing on the electric inspection data and the security inspection data through the upper computer to obtain a whole vehicle detection report of the vehicle to be detected.
In the embodiment of the invention, the electric inspection data and the security inspection data are obtained through the electric inspection equipment and the security inspection equipment. In the detection process, the electric detection equipment performs information transmission through a first interface and a second interface of the vehicle, and uploads the acquired electric detection data to an upper computer, the security detection equipment acquires security detection data generated in the vehicle security detection process through a built-in sensor and uploads the security detection data to the upper computer through a built-in system of the security detection equipment, the built-in system can be a system which is connected with the sensor and a sending module in the security detection equipment, the system uploads the data acquired by the sensor to the upper computer through the sending module, and the upper computer processes the electric detection data and the security detection data, determines whether the vehicle passes through detection according to a built-in preset value of the detection system and prints a detection report of the whole vehicle.
Optionally, before the step of detecting the electric detection item of the vehicle to be detected by the electric control detection device to obtain the electric detection data of the vehicle to be detected, the basic information of the vehicle to be detected may be obtained through the first terminal device, the first interface of the electric detection device may be obtained, the basic information of the vehicle to be detected may be verified by the verification device, the second interface of the vehicle to be detected may be determined according to the basic information of the vehicle to be detected that passes the verification, and the electric detection item of the vehicle to be detected may be determined according to the first interface of the electric detection device and the second interface of the vehicle to be detected.
In the embodiment of the invention, the basic information of the vehicle to be detected can be obtained by inputting a frame code or scanning a bar code into the electric detection equipment and stored in the electric detection system, and can be used as matched vehicle information data in the next electric detection. The matched vehicle information data can be searched by a detection system, and what detection items the matched vehicle does and how the detection results are determined by the stored data.
Specifically, after the vehicle enters the electric inspection station, the vehicle is connected with the electric inspection equipment through an RJ45 or USB interface protocol, and a first interface of the electric inspection equipment is obtained. And verifying the acquired basic information of the vehicle through verification equipment of the electric inspection equipment, and acquiring information such as electric inspection items, electric inspection results and the like of the vehicle on the electric inspection equipment through the verification information.
Optionally, before the step of detecting the security inspection item of the vehicle to be detected by the security inspection device to obtain the security inspection data of the vehicle to be detected, the device parameter of the security inspection device may be further obtained, and the security inspection item of the vehicle to be detected is determined according to the device parameter.
In the embodiment of the invention, the security inspection equipment can be manufactured in a customized mode according to the requirements of users. Therefore, in the production process of the security inspection equipment, different parameter selections are required to be carried out according to different requirements, so that security inspection items which can be carried out by the security inspection equipment are determined.
Specifically, the speed measuring range can be customized according to user requirements by the vehicle speed detecting table, the rotating speed of the detecting roller can be changed through setting the power of the motor of the detecting roller, so that the requirement of customizing the speed measuring range according to the user requirements is met, different materials can be selected for manufacturing the bearing module according to different vehicle types, and the bearing quality range is changed.
The braking detection table can customize a braking force detection range according to user requirements, and can customize sand-sticking rollers with different surface adhesion coefficients according to requirements to simulate road surface conditions in different environments, so that the vehicle braking conditions in different states can be obtained in multiple ways and multiple changes, and the vehicle conditions can be evaluated in multiple ways.
The wheel weight measuring platform customizes the spans of the test platforms with different wheel base and axle base according to the requirements of users, and the measurement data are collected through the equipped high-precision sensor and fed back to the detection system, so that the wheel weight measuring platform can select a single axle or double axles for measurement according to different types of vehicles.
More specifically, the vehicle speed detection table collects measurement data according to the equipped high-precision sensor, and feeds the measurement data back to the detection system, and detection rollers with different wheelbases are equipped, so that the measurement can be performed by selecting single axle or double weeks according to different types of vehicles. The high-strength steel plate integrated table body has the highest energy bearing of 3000KG, and the carried driven roller adopts an aviation dynamic balance technology, allows high-speed operation, has the rotating speed of 1km/h approximately equal to 27.927r/min and is used for testing the vehicle speed of 120km/h at the highest.
The light detector is provided with a display screen, so that a inspector can conveniently record visual data. And is equipped with sensitive electrical detection component, can carry out accurate detection to tiny voltage and electric current.
The brake detection table is provided with the high-precision inlet technology sensor, test data can be transmitted to the visual power detection system in real time, visual detection of the data is carried out through the pointer digital display instrument with the memory function, and the test precision is reliable and stable. The carried adhesion coefficient (dry/wet) >0.80/0.60 can simulate the general road condition, the equipped high-strength steel plate integrated table body can bear the load up to 3000kg, and the international leading sand-bonding roller technology and the special speed reducer are adopted, so that the braking force of 0-10000N can be detected. The brake detection platform is also matched with a standard RS-232 serial communication interface, and detection data can be uploaded to an upper computer through the interface.
The wheel weight measuring platform is provided with the high-strength steel plate integrated platform body, the highest bearing capacity is 3000KG, the area of a carrying plate carried by the wheel weight measuring platform reaches 1100 multiplied by 600mm, the inner and outer spans of the plate reach 615mm and 2815mm respectively, and the weight measuring platform can select a single shaft or a double shaft for measurement according to different types of vehicles.
Optionally, the electrical inspection item includes electronic equipment parameter detection and fault code diagnosis, in the step of detecting the electrical inspection item of the vehicle to be inspected by the electrical inspection device to obtain electrical inspection data of the vehicle to be inspected, the electronic equipment parameter of the vehicle to be inspected can be obtained by the electrical inspection device, the fault code can be read and cleared to obtain a data value of the fault code, and the electrical inspection data of the vehicle to be inspected is determined based on the electronic equipment parameter and the data value and is interacted with an MES system of a host factory.
In the embodiment of the invention, a diagnostic instrument connected with electrical inspection equipment is connected with a vehicle to be inspected through an OBD interface or a PCAN-USB to obtain the parameters of the electronic equipment of the vehicle, and the method comprises the following steps: and the electronic control unit starts a diagnosis program on the diagnosis instrument to check the fault code of the vehicle to be checked by the diagnosis program, the diagnosis program reads the fault code through the ECU of the vehicle, the read fault code is displayed through a screen of the diagnosis instrument, and a solution is determined based on the interpretation of the fault code.
The fault code is a code issued by a vehicle Electronic Control Module (ECM) or other system controller to indicate that a problem exists with the vehicle. When a fault is detected by the vehicle system, a fault code is generated and stored in the internal memory of the vehicle.
The diagnostic instrument is used for reading all detection data streams provided on a communication technology protocol and dynamically displaying data stream data; the fault code provided on the communication technology protocol can be read, the detected fault code and the corresponding fault content are displayed, and the information is uploaded to the upper computer.
The MES (Manufacturing Execution System ) is mainly used for managing the whole automobile production process, including various links such as automobile body welding, coating and final assembly. By analyzing and extracting the data, accurate manufacturing data can be provided for subsequent manufacturing, and the manufacturing efficiency is improved.
Specifically, the diagnostic apparatus can detect the controller system of the electric vehicle and acquire system data, including, but not limited to, braking data of a braking system, the number of mileage, the engine speed, and the like.
The electrical inspection data may be a vehicle fault code obtained by a diagnostic apparatus through a diagnostic program, a solution of a vehicle problem and a solution of a problem determined by analyzing the fault code, and data of an electronic device mounted on the vehicle, and may be stored through a system, and may be used as a reference for a subsequent return inspection. The system judges the electric detection value of each link according to the received electric detection data, marks the failed link, counts the first failure rate, and finally integrates and sends the first failure rate to the upper computer.
The above-mentioned return checking process can input vehicle information on the equipment, and the detection items and results of the vehicle on the equipment can be searched by the system, and based on the detection items and results, the subsequent detection items of the vehicle are determined.
Optionally, the security inspection items include vehicle speed detection, wheel weight detection, light detection and brake detection, and in the step of detecting the security inspection items of the vehicle to be inspected through the security inspection device to obtain the security inspection data of the vehicle to be inspected, the running data of the vehicle to be inspected can be obtained through a vehicle speed detection table, a wheel weight detection table, a light detector and a brake detection table.
In the embodiment of the invention, the specific steps of the implementation method can be that firstly, a vehicle is driven into a vehicle speed detection table, the vehicle is set up and stopped stably, the vehicle is lifted and lowered by controlling the vehicle speed table, the vehicle is slowly accelerated and set up, then is lowered to an idle speed, after a safety protection measure is well carried out, the vehicle is slowly accelerated until the vehicle speed meter displays 40km/h, the system automatically reads the actual vehicle speed according to a remote control, and data are stored in the system. After the vehicle is stored, the vehicle is slowly slowed down to idle speed, and after the lifting device is lifted, the vehicle is driven into the wheel weight platform. And then stopping the vehicle on the wheel weight platform for weighing detection, reading the wheel weight data, performing two-axis weighing detection, recording the two-axis weighing data into the system, and driving the vehicle into a braking station. Stopping a first axle of a vehicle in the middle of a roller of a braking platform, loosening a brake in a neutral position, supporting a steering wheel, waiting for a lifting device to descend and starting a motor, slowly stepping a brake pedal for 2-3s after a display screen prompts to step on the brake, driving a second axle into the braking platform after detection software reads the brake force and stores the brake force, carrying out the detection of the second axle brake, continuing to carry out the detection of the parking brake after the detection of the second axle brake is finished, loosening the brake in the neutral position, supporting the steering wheel, waiting for the lifting device to descend and starting the motor, slowly pulling a hand brake lever for 2-3s after the display screen prompts to pull the handle to brake, and reading the parking brake force by the detection software and storing the parking brake force into a system. And then driving the vehicle into a light detection table, and operating the vehicle to turn on regional lights after the light detector is connected into the vehicle. At the moment, the screen of the lamplight detector can display the voltage and the current passing through the area lamplight, and judges whether the detected voltage and current accord with the threshold value or not through the preset current and the preset voltage, so that the area lamp is prevented from being burnt out. If the detected data does not fit within the threshold, a lamp burn out or insufficient driving of the lamp may occur.
The system determines detection data of the detected vehicle according to the acquired vehicle speed data, wheel weight data, light detection data and brake data, judges detection values of all devices in the detection data, marks the detection values which do not pass through, calculates a second failure rate, and finally integrates, packages and sends the detection values to the upper computer. And the detection panel is received by the upper computer and fed back to the detection personnel.
It should be noted that the steps may be changed in a corresponding order according to a specific shop layout, and the detection device only selects the device for detecting the significances for explanation, and other devices may be added according to an actual shop configuration.
Optionally, performing data processing on the electric inspection data and the security inspection data through the upper computer, and obtaining the whole vehicle inspection report of the vehicle to be inspected includes determining security inspection data based on the running data of the inspected vehicle, acquiring the electric inspection data of the vehicle to be inspected according to an electric inspection item, acquiring the security inspection data of the vehicle to be inspected according to a security performance inspection item, printing the whole vehicle inspection report based on the electric inspection data and the security inspection data, and performing data interaction through an MES system.
In the embodiment of the invention, the electric inspection data and the security inspection data are analyzed and integrated through the upper computer, the integrated information is typeset and uploaded to the terminal, and the whole vehicle report is printed through the terminal. Specifically, the electrical inspection data may include related characteristic information such as SOC data, battery pack current, motor temperature, and controller temperature data in the electronic control unit, and a solution of the diagnostic apparatus to the vehicle fault code acquired by the vehicle diagnostic apparatus through the diagnostic program, and the vehicle problem and problem determined by analyzing the fault code.
The security check data may include, but is not limited to, acceleration performance of the vehicle, maximum speed of the vehicle, braking distance of the vehicle, and the like, which are obtained by the vehicle on the speed measuring table, center of gravity position of the vehicle, front-rear axle weight distribution specific data, and the like, which are obtained by the vehicle on the wheel weight measuring table, and data such as braking distance of the vehicle, braking temperature of the vehicle, and the like, which are obtained by the brake detecting table.
And processing the electric inspection data and the security inspection data to obtain a first non-passing rate and a second passing rate, and accounting in the total passing rate of the system.
The passing rate is recorded according to basic information of the vehicle type and manufacturers, so that the passing rate of different components according to different manufacturers can be achieved, the vehicle manufacturers can be used as reference of partial data, and the manufacturers can optimize the vehicle according to the partial passing rate data.
As shown in fig. 2, the embodiment of the invention in fig. 2 provides a new energy special vehicle offline detection system, which comprises an electrical inspection system 201, a security inspection system 202, an upper computer system 203 and a networking interaction system 204. The electric inspection system 201 and the security inspection system 202 are the cores of a vehicle detection system, and vehicles evaluate the conditions of the vehicles through the two systems.
The electrical inspection system 201 may detect the vehicle's electronics and derive vehicle electronics parameters and vehicle faults through the vehicle's internal interface. The security inspection system 202 is composed of a plurality of test platforms, the test platforms are matched with a plurality of sensors, computers and detection instruments, detection data of the vehicles in running are obtained in real time, and possible safety problems of the vehicles are determined through the detection data. The upper computer system 203 completes the automatic detection process of the vehicle through real-time monitoring control and dispatching detection equipment. And according to the detection result, the detection report of the whole vehicle is tidied.
In one possible embodiment, the ignition system, the fuel injection system, the oxygen sensor, etc. in the vehicle engine electronic control system are detected by the electronic detection system 201. By detecting the operating conditions and data of these components, the electrical inspection system can determine whether the engine is operating properly and give a fault code that may be present. Secondly, the safety electronic control system including a brake system, an ABS (antilock braking system), an ESP (Electronic Stability Program, body stability control system) and the like is checked, and the electronic detection system 201 finds any problem with these systems and gives a warning and provides a repair advice immediately. The security inspection system 202 obtains the data of the vehicle in different states according to different test tables, so as to determine whether the vehicle passes the security inspection. Specifically, the acceleration performance of the vehicle, the maximum speed of the vehicle, the braking distance of the vehicle and the like can be obtained through the vehicle at the speed measuring platform, the center of gravity position of the vehicle can be obtained through the wheel weight measuring platform, the front and rear axle weight distribution specific data and the like can be also included, and the data of the braking distance of the vehicle, the braking temperature of the vehicle and the like can be obtained through the braking detection platform. And finally, the upper computer system 203 analyzes and integrates the data according to the data given by the electric inspection system and the security inspection system, and prints a whole vehicle detection report. And finally, carrying out data interaction with the MES system through the networking interaction system 204, and uploading the whole vehicle detection report.
As shown in fig. 3, the embodiment of the invention further provides a new energy special vehicle offline detection device, which includes:
the first obtaining module 301 is configured to detect, by using an electrical detection device, an electrical detection item of a vehicle to be detected, to obtain electrical detection data of the vehicle to be detected, where the electrical detection item is determined according to a first interface of the electrical detection device and a second interface of the vehicle to be detected;
the second obtaining module 302 is configured to detect, by using a security inspection device, a security inspection item of a vehicle to be detected, to obtain security inspection data of the vehicle to be detected, where the security inspection item is determined according to a device parameter of the security inspection device;
and the third acquisition module 303 is used for carrying out data processing on the electric inspection data and the security inspection data through an upper computer to obtain a whole vehicle detection report of the vehicle to be detected and carrying out data interaction with an MES system.
Optionally, the device includes:
the first acquisition sub-module is used for acquiring basic information of a vehicle to be detected through first terminal equipment and acquiring a first interface of the electric detection equipment;
the first verification module is used for verifying the basic information of the vehicle to be detected through verification equipment;
the first determining module is used for determining a second interface of the vehicle to be detected according to the basic information of the vehicle to be detected, which passes the verification;
And the second determining module is used for determining an electric detection item of the vehicle to be detected according to the first interface of the electric detection device and the second interface of the vehicle to be detected.
Optionally, the apparatus further includes:
the second acquisition submodule is used for acquiring equipment parameters of the security inspection equipment;
and the third determining module is used for determining the security inspection project of the vehicle to be detected according to the equipment parameters.
Optionally, the first obtaining module 301 further includes:
a third obtaining sub-module, configured to obtain, by using an electric inspection device, electronic device parameters of the vehicle to be detected, where the electronic device parameters include, but are not limited to, current data and temperature data of a main controller, voltage data and current data of a battery pack, rotational speed data and temperature data of a motor, and a state of SOC;
a fourth obtaining sub-module, configured to obtain a fault code of the vehicle to be detected through an electric detection device, and read and clear the fault code to obtain a data flow value of the fault code;
and the fourth determining module is used for determining the electric detection data of the vehicle to be detected based on the electronic equipment parameters and the data flow value.
Optionally, the second obtaining module 302 further includes:
A fifth acquisition sub-module, configured to acquire relevant data of the vehicle to be detected through a vehicle speed detection table, a wheel weight detection table, a light detector and a brake detection table;
and a fifth determining module, configured to determine security check data based on the related data of the detected vehicle.
Optionally, the apparatus further includes:
a sixth acquisition sub-module, configured to acquire electric detection data of the vehicle to be detected according to an electric detection item;
a seventh obtaining sub-module, configured to obtain security inspection data of the vehicle to be detected according to a security performance detection item;
and the printing module is used for printing the whole vehicle detection report based on the electric detection data and the security detection data and carrying out data interaction through the MES system.
As shown in fig. 4, the embodiment of the invention further provides an electronic device, which is characterized by comprising a processor, wherein the processor can execute the method for detecting the off-line of any new energy special vehicle.
Specifically, the system includes a processor 401, a memory 402, and a computer program stored in the memory 402 and capable of running on the processor 401 for executing the new energy special vehicle offline detection method, wherein:
the processor 401 runs a computer program of the new energy special vehicle off-line detection method stored in the memory 402, and performs the following steps:
Detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, wherein the electric detection item is determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected;
detecting a security inspection item of a vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, wherein the security inspection item is determined according to equipment parameters of the security inspection equipment;
and carrying out data processing on the electric inspection data and the security inspection data through an upper computer to obtain a whole vehicle detection report of the vehicle to be detected.
Optionally, in the method for detecting the off-line of the new energy special vehicle, before the electric detection item of the vehicle to be detected is detected by the electric control detection device to obtain electric detection data of the vehicle to be detected, the processor 401 further performs the following steps:
acquiring basic information of a vehicle to be detected through a first terminal device, and acquiring a first interface of the electric detection device;
checking basic information of the vehicle to be detected through checking equipment;
determining a second interface of the vehicle to be detected according to the basic information of the checked vehicle to be detected;
And determining an electric inspection item of the vehicle to be detected according to the first interface of the electric inspection device and the second interface of the vehicle to be detected.
Optionally, before the detecting, by the security inspection device, a security inspection item of the vehicle to be detected, and obtaining security inspection data of the vehicle to be detected, the processor 401 further executes the method, including:
acquiring equipment parameters of the security inspection equipment;
and determining a security inspection project of the vehicle to be detected according to the equipment parameters.
Optionally, in the method for detecting the off-line of the new energy special vehicle, the processor 401 executes the detection of the electric detection item of the vehicle to be detected by the electric detection device to obtain electric detection data of the vehicle to be detected, and the method includes:
acquiring electronic equipment parameters of the vehicle to be detected through an electric detection device, wherein the electronic equipment parameters comprise, but are not limited to, current data and temperature data of a main controller, voltage data and current data of a battery pack, rotating speed data and temperature data of a motor and state of an SOC;
acquiring a fault code of the vehicle to be detected through electric detection equipment, and reading and clearing the fault code to obtain a data flow value of the fault code;
and determining electric detection data of the vehicle to be detected based on the electronic equipment parameters and the data flow value, and performing data interaction with an MES system of a host factory.
Optionally, in the method for detecting the off-line of the new energy special vehicle, the processor 401 performs detection on a security inspection item of the vehicle to be detected by security inspection equipment to obtain security inspection data of the vehicle to be detected, and the method includes:
acquiring running data of the vehicle to be detected through a vehicle speed detection table, a wheel weight detection table, a light detector and a brake detection table;
security data is determined based on the travel data of the detected vehicle.
Optionally, in the method for detecting the off-line of the new energy special vehicle, the processor 401 executes the data processing on the electric detection data and the security detection data by using the upper computer to obtain a whole vehicle detection report of the vehicle to be detected, and the method includes:
acquiring electric detection data of the vehicle to be detected according to an electric detection item;
acquiring security inspection data of the vehicle to be detected according to the security performance detection item;
and printing the whole vehicle detection report based on the electric detection data and the security detection data and carrying out data interaction through an MES system.
The embodiment of the invention also provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the method for detecting the offline of the new energy special vehicle or the method for detecting the offline of the new energy special vehicle at the application end provided by the embodiment of the invention is realized, and the same technical effect can be achieved, so that repetition is avoided, and no further description is provided here.
Those skilled in the art will appreciate that the processes implementing all or part of the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include the processes of the embodiments of the methods as above when executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM) or the like.
The foregoing disclosure is illustrative of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The method for detecting the off-line of the new energy special vehicle is characterized by comprising the following steps of:
detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, wherein the electric detection item is determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected;
detecting a security inspection item of a vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, wherein the security inspection item is determined according to equipment parameters of the security inspection equipment;
And carrying out data processing on the electric inspection data and the security inspection data through an upper computer to obtain a whole vehicle detection report of the vehicle to be detected.
2. The new energy special vehicle off-line detection method according to claim 1, wherein before the electric detection items of the vehicle to be detected are detected by the electric control detection device to obtain electric detection data of the vehicle to be detected, the method further comprises:
acquiring basic information of a vehicle to be detected through a first terminal device, and acquiring a first interface of the electric detection device;
checking basic information of the vehicle to be detected through checking equipment;
determining a second interface of the vehicle to be detected according to the basic information of the checked vehicle to be detected;
and determining an electric inspection item of the vehicle to be detected according to the first interface of the electric inspection device and the second interface of the vehicle to be detected.
3. The method for detecting the off-line of the new energy special vehicle according to claim 1, wherein before the security inspection items of the vehicle to be detected are detected by the security inspection device to obtain the security inspection data of the vehicle to be detected, the method further comprises:
acquiring equipment parameters of the security inspection equipment;
And determining a security inspection project of the vehicle to be detected according to the equipment parameters.
4. The method for detecting the off-line of the new energy special vehicle according to claim 1, wherein the electric detection items comprise electronic equipment parameter detection and fault code diagnosis, the electric detection items of the vehicle to be detected are detected by electric detection equipment to obtain electric detection data of the vehicle to be detected, and the method comprises the following steps:
acquiring electronic equipment parameters of the vehicle to be detected through an electric detection device, wherein the electronic equipment parameters comprise, but are not limited to, current data and temperature data of a main controller, voltage data and current data of a battery pack, rotating speed data and temperature data of a motor and state of an SOC;
acquiring a fault code of the vehicle to be detected through electric detection equipment, and reading and clearing the fault code to obtain a data flow value of the fault code;
and determining electric detection data of the vehicle to be detected based on the electronic equipment parameters and the data flow value, and performing data interaction with an MES system of a host factory.
5. The method for detecting the off-line of the new energy special vehicle according to claim 1, wherein the security inspection items comprise vehicle speed detection, wheel weight detection, lamplight detection and brake detection, the security inspection items of the vehicle to be detected are detected by security inspection equipment to obtain security inspection data of the vehicle to be detected, and the method comprises the following steps:
Acquiring related data of the vehicle to be detected through a vehicle speed detection table, a wheel weight detection table, a light detector and a brake detection table;
security data is determined based on the travel data of the detected vehicle.
6. The method for detecting the off-line of the new energy special vehicle according to claim 1, wherein the step of performing data processing on the electric detection data and the security detection data by the upper computer to obtain a whole vehicle detection report of the vehicle to be detected comprises the following steps:
acquiring electric detection data of the vehicle to be detected according to an electric detection item;
acquiring security inspection data of the vehicle to be detected according to the security performance detection item;
and printing the whole vehicle detection report based on the electric detection data and the security detection data and carrying out data interaction through an MES system.
7. The utility model provides a new forms of energy special type vehicle off-line detecting system which characterized in that, new forms of energy special type vehicle off-line detecting system includes: the system comprises an electric inspection system, a security inspection system, an upper computer control system and a networking interaction system.
The electric detection system detects electric detection items of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, and the electric detection items are determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected; the security inspection system detects security inspection items of the vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, and the security inspection items are determined according to equipment parameters of the security inspection equipment; and the upper computer system performs data processing on the electric inspection data and the security inspection data through the upper computer to obtain a whole vehicle detection report of the vehicle to be detected and performs data interaction with the MES system.
8. The utility model provides a new forms of energy special type vehicle detection device that rolls off production line which characterized in that, new forms of energy special type vehicle rolls off production line detection device includes:
the first acquisition module is used for detecting an electric detection item of a vehicle to be detected through electric detection equipment to obtain electric detection data of the vehicle to be detected, and the electric detection item is determined according to a first interface of the electric detection equipment and a second interface of the vehicle to be detected;
the second acquisition module is used for detecting a security inspection item of a vehicle to be detected through security inspection equipment to obtain security inspection data of the vehicle to be detected, and the security inspection item is determined according to equipment parameters of the security inspection equipment;
and the third acquisition module is used for carrying out data processing on the electric inspection data and the security inspection data through the upper computer to obtain a whole vehicle detection report of the vehicle to be detected and carrying out data interaction with the MES system.
9. An electronic device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps in the new energy special vehicle off-line detection method according to any one of claims 1 to 6 when the computer program is executed.
10. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, which when executed by a processor, implements the steps in the new energy special vehicle drop-out detection method according to any one of claims 1 to 6.
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| CN202310733729.9A CN116793705A (en) | 2023-06-20 | 2023-06-20 | New energy special vehicle offline detection method, device, system and electronic equipment |
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| CN202310733729.9A CN116793705A (en) | 2023-06-20 | 2023-06-20 | New energy special vehicle offline detection method, device, system and electronic equipment |
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