WO2023216912A9 - 一种汽车电路故障测试的方法、装置和计算机设备 - Google Patents

一种汽车电路故障测试的方法、装置和计算机设备 Download PDF

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WO2023216912A9
WO2023216912A9 PCT/CN2023/091374 CN2023091374W WO2023216912A9 WO 2023216912 A9 WO2023216912 A9 WO 2023216912A9 CN 2023091374 W CN2023091374 W CN 2023091374W WO 2023216912 A9 WO2023216912 A9 WO 2023216912A9
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vehicle
waveform chart
sensor
chart
information
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PCT/CN2023/091374
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English (en)
French (fr)
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WO2023216912A1 (zh
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肖灵聪
刘云飞
史钰焘
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深圳市星卡软件技术开发有限公司
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00Testing or monitoring of control systems or parts thereof
    • G05B23/02Electric testing or monitoring
    • G05B23/0205Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0221Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods

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  • the present application relates to the field of automobile diagnosis technology, and in particular to a method, device and computer equipment for automobile circuit fault testing.
  • Oscilloscopes on the market are generally divided into two types, one is called ordinary or industrial oscilloscopes, and the other is called automotive oscilloscopes.
  • An automotive oscilloscope is an oscilloscope used to detect faults in automotive electronic circuits. It is also an instrument used to collect voltage signals. Since the signals it collects have a certain continuity based on time, they become “waves”. This "wave” is displayed. for the oscilloscope.
  • this application provides a method, device and computer equipment for automobile circuit fault testing.
  • the technical copy provided by this application is a method for testing automotive circuit faults, which is applied to an oscilloscope.
  • the method includes the following steps:
  • the first waveform chart is compared with the second waveform chart and the third waveform chart in the database to obtain analysis results, wherein the second waveform chart is generated based on a first custom preset condition, and the third waveform chart is Three waveform charts based on The second custom preset condition is generated;
  • a test report is generated based on the analysis results and displayed on the screen.
  • specific steps for establishing a communication connection with a vehicle to obtain the vehicle's automotive information include:
  • the vehicle information matching the vehicle identification code is searched from the database, where the vehicle information includes car series information, model information, year model information, mileage information and sensor information.
  • the specific steps of testing the circuit voltage of at least one sensor of the vehicle according to the vehicle information to obtain test data include:
  • the vehicle model information select the corresponding vehicle model to enter the sensor chart of the vehicle;
  • the horizontal axis of the first waveform graph is the time axis
  • the vertical axis of the first waveform graph is the voltage value
  • the specific steps of comparing the first waveform chart with the second waveform chart and the third waveform chart in the database to obtain the analysis results include:
  • the first waveform chart is compared with the third waveform chart in the database to obtain a second analysis chart, wherein the third analysis chart is the measured voltage waveform generated by the vehicle under the second customized preset condition. chart;
  • the first analysis chart and the second analysis chart are analyzed to obtain analysis results.
  • specific steps to generate a test report and display the test report on the screen based on the analysis results include:
  • test report historical diagnosis records of corresponding sensor circuit failures of vehicles of the same type that match the vehicle are searched from the database to obtain a maintenance plan, where the failures of various sensors of multiple vehicles are pre-stored in the database.
  • the method includes:
  • This application also discloses an automobile circuit fault testing device, including:
  • a communication module used to establish a communication connection with the vehicle to obtain the vehicle information of the vehicle
  • a testing module configured to test the circuit voltage of at least one sensor of the vehicle according to the vehicle information to obtain test data, wherein the test data is the real-time voltage data of the sensor within a certain period of time;
  • An integration module configured to perform integrated analysis on the test data to generate a first waveform chart, where the first waveform chart includes a current voltage-time curve corresponding to real-time voltage data;
  • a comparison module for comparing the first waveform chart with the second waveform chart and the third waveform chart in the database to obtain analysis results, wherein the second waveform chart is based on the first custom preset Conditional generation, the third waveform chart is generated based on the second custom preset condition;
  • a display module is configured to generate a test report based on the analysis results and display the test report on the screen.
  • This application also discloses a computer device, which includes a memory and a processor.
  • the memory stores a computer program.
  • the processor executes the computer program, it implements the steps of the method for testing automobile circuit faults as described above.
  • the present application also discloses a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the steps of the method for testing automotive circuit faults as described above are implemented.
  • This application establishes a communication connection with the vehicle through an oscilloscope, and can read car information from the car's ECU. Reading the information is convenient and fast; the sensors that need to be detected are tested according to the car information to obtain test data and ensure testing.
  • the sensor corresponds to the vehicle, which facilitates subsequent analysis of the test data; the test data is integrated and analyzed through an oscilloscope to generate a first waveform chart, and the real-time voltage data obtained by the sensor test is displayed in the waveform chart, making the voltage data more accurate.
  • the analysis results are obtained.
  • Figure 1 is a schematic flow chart of the automotive circuit fault testing method of this application.
  • Figure 2 is a schematic structural diagram of the automotive circuit fault testing device of the present application.
  • Figure 3 is a schematic structural diagram of the computer equipment of the present application.
  • a method for testing car circuit faults is applied to an oscilloscope.
  • the oscilloscope is connected to the vehicle for communication.
  • the oscilloscope can be an OBD device.
  • the OBD device is connected to the OBD interface of the vehicle.
  • the OBD interface can be the car's OBD interface.
  • the OBD system provides an external interface.
  • the OBD device is connected to the OBD interface of the car.
  • the oscilloscope can also be connected to the car through the OBD connector.
  • the OBD connector is connected to the OBD interface of the vehicle.
  • the OBD connector is connected to the oscilloscope remotely.
  • the method includes the following steps:
  • Step S1 Establish a communication connection with the vehicle to obtain the vehicle information of the vehicle;
  • Step S2 Test the circuit voltage of at least one sensor of the vehicle according to the vehicle information to obtain test data, wherein the test data is the real-time voltage data of the sensor within a certain period of time;
  • Step S3 Integrate and analyze the test data to generate a first waveform chart, where the first waveform chart includes a current voltage-time curve corresponding to real-time voltage data;
  • Step S4 Compare the first waveform chart with the second waveform chart and the third waveform chart in the database to obtain analysis results, where the second waveform chart is generated based on the first custom preset condition, The third waveform chart is generated based on the second customized preset condition;
  • Step S5 Generate a test report based on the analysis results and display the test report on the screen.
  • the vehicle information can be obtained from the vehicle's body computer. After the user confirms that the vehicle information matches the vehicle, the user can use The oscilloscope tests the sensor circuit that the vehicle needs to detect, and obtains the real-time voltage data of the sensor within a certain period of time. After integrating the real-time voltage data, a first waveform chart is generated, and the first waveform chart is combined with the second waveform in the database. Compare the chart with the third waveform chart to obtain the analysis results. The oscilloscope can determine whether there is a fault in the sensor circuit based on the analysis results. Finally, the oscilloscope generates a visual test report based on the analysis results and displays it on the screen. On the system, users can visually see whether there is a fault in the sensor through the test report.
  • the oscilloscope is an instrument used to record the amount of electricity (current, voltage, etc.) that changes over time.
  • the oscilloscope can display a continuous and complete signal waveform. It has the following functions and advantages:
  • Oscilloscopes generally consist of signal acquisition devices (probes, probes, etc.), processors and displays. When using an oscilloscope, you need to connect the probe to the oscilloscope. After starting the oscilloscope, by using the probe to contact a certain circuit position of the device under test, the voltage signal at that position can be read, and the voltage signal will be displayed on the screen in a continuous waveform. superior.
  • the specific steps of establishing a communication connection with a vehicle to obtain vehicle information of the vehicle include:
  • Step S11 Establish a communication link with the vehicle through the diagnostic connector, and read the vehicle identification code from the vehicle;
  • Step S12 Search the database for car information matching the vehicle identification code according to the vehicle identification code, where the car information includes car series information, model information, year model information, mileage information and sensor information.
  • the vehicle identification number of the vehicle is read from the vehicle's body computer.
  • the corresponding vehicle identification number can be obtained from the OBD module of the vehicle; the oscilloscope's database
  • the OBD module of the vehicle the OBD module of the vehicle
  • the oscilloscope's database There are many car information of different car series and models stored in it. Through the vehicle identification number, you can find the car information associated with the vehicle identification number in the database of the oscilloscope. It is convenient and fast, and the pre-stored data is accurate.
  • the vehicle identification number (Vehicle Identification Number, or vehicle frame number), referred to as the vehicle identification number, is a set of seventeen letters or numbers used on the car to identify the unique number.
  • the vehicle identification number can be found on the vehicle driving license, motor vehicle driver's license, vehicle insurance policy, under the B-pillars of the left and right doors, left and right shock-absorbing wheels (or depth) of the engine compartment, front firewall of the cockpit, passenger floor underfoot, and lower left of the front windshield Found in corners and dashboards.
  • the specific steps of testing the circuit voltage of at least one sensor of the vehicle according to the vehicle information to obtain test data include:
  • Step S21 Analyze the car information to obtain vehicle model information
  • Step S22 According to the vehicle model information, select the corresponding vehicle model to enter the sensor chart of the vehicle;
  • Step S23 Select the corresponding sensor according to the sensor chart to test the circuit voltage to obtain test data.
  • the specific vehicle model information of the vehicle can be obtained by analyzing the vehicle information. Select the corresponding vehicle model according to the vehicle model information to see the sensor chart of the vehicle.
  • the chart includes all sensors of the vehicle. To test a certain sensor, select the sensor to perform the test. After the test data is obtained, it is bound to the vehicle model and sensor. There are many sensors used in cars. When testing a certain sensor, it is necessary to specify a certain sensor of a certain car model to ensure that the test data obtained can correspond to the car model and sensor.
  • the horizontal axis of the first waveform graph is the time axis
  • the vertical axis of the first waveform graph is the voltage value
  • the specific steps of comparing the first waveform chart with the second waveform chart and the third waveform chart in the database to obtain the analysis results include:
  • Step S41 Compare the first waveform chart with the second waveform chart in the database to obtain a first analysis chart, where the second waveform chart is generated by the sensor under the first custom preset condition. Standard voltage waveform chart;
  • Step S42 Compare the first waveform chart with the third waveform chart in the database to obtain a second analysis chart, where the third analysis chart is generated by the vehicle under the second customized preset condition. Measured voltage waveform chart;
  • Step S43 Analyze the first analysis chart and the second analysis chart to obtain analysis results.
  • the first custom preset condition is that the sensors of the same model and model are tested without any interference and can work normally and stably through a special sensor test fixture to obtain the standard voltage data of the sensor within a period of time. , and generate a second waveform chart, and store the second waveform chart in the database of the oscilloscope; the second custom preset condition is that when the sensor is used on the same model of car, the oscilloscope tests the sensors with different usage levels to obtain the measured voltage data.
  • the specific steps of generating a test report and displaying the test report on the screen based on the analysis results include:
  • Step S51 Determine whether there is a fault in the circuit of the sensor according to the analysis result
  • Step S52 If the judgment result is yes, output a fault prompt and generate a test report;
  • Step S53 Search historical diagnosis records of sensor circuit failures for vehicles of the same type that match the vehicle from the database according to the test report to obtain a maintenance plan, where the database has pre-stored individual faults of multiple vehicles. Sensor fault repair plan;
  • Step S54 Search the historical diagnosis records for a maintenance plan that matches the analysis results, where the maintenance plan includes a sensor circuit fault description and maintenance suggestions.
  • the oscilloscope can determine whether there is a fault in the sensor based on the analysis results. If there is a fault, it will output a fault prompt and generate a test report to facilitate the user.
  • the test report can check the status of the sensor, and non-professionals can also identify faults.
  • the oscilloscope can also find historical records in the data that match the sensor circuit faults of the same type of vehicle, and find faults related to the sensor from the historical records.
  • users can troubleshoot according to the maintenance plan, which greatly improves the practicality of the oscilloscope, reduces the difficulty of use, and improves the user experience.
  • the method includes:
  • Step S55 If the judgment result is no, it means that there is no fault in the sensor circuit of the vehicle, and a normal prompt is output.
  • step S55 if there is no fault, a normal prompt is output, which improves the efficiency of the oscilloscope test, avoids human judgment errors, and improves the accuracy of fault diagnosis.
  • the communication module 10 is used to establish a communication connection with the vehicle to obtain the vehicle information of the vehicle;
  • the test module 20 is used to test the circuit voltage of at least one sensor of the vehicle according to the vehicle information to obtain test data, wherein the test data is the real-time voltage data of the sensor within a certain period of time;
  • the integration module 30 is used to perform integrated analysis on the test data to generate a first waveform chart, where the first waveform chart includes the current voltage-time curve corresponding to the real-time voltage data;
  • the comparison module 40 is used to compare the first waveform chart with the second waveform chart and the third waveform chart in the database to obtain analysis results, wherein the second waveform chart is based on the first customized preset Assume that the condition is generated, and the third waveform chart is generated based on the second customized preset condition;
  • the display module 50 is used to generate a test report based on the analysis results and display the test report on the screen.
  • the communication module 10 further includes:
  • An establishment unit configured to establish a communication link with the vehicle through the diagnostic connector and read the vehicle identification code from the vehicle;
  • a search unit configured to search for car information matching the vehicle identification code from a database according to the vehicle identification code, wherein the car information includes car series information, model information, year model information, mileage information and sensor information. .
  • test module 20 further includes:
  • An analysis unit is used to analyze the car information to obtain vehicle model information
  • a selection unit configured to select a corresponding vehicle model according to the vehicle model information to enter the sensor chart of the vehicle
  • a testing unit is used to select the corresponding sensor according to the sensor chart to test the circuit voltage to obtain test data.
  • the comparison module 40 further includes:
  • the first comparison unit is used to compare the first waveform chart with the second waveform chart in the database to obtain a first analysis chart, wherein the second waveform chart is the first customized preset value for the sensor. Standard voltage waveform chart generated under assumed conditions;
  • the second comparison unit is used to compare the first waveform chart with the third waveform chart in the database to obtain a second analysis chart, wherein the third analysis chart is the vehicle in the second customized preset The measured voltage waveform chart generated under the assumed conditions;
  • An analysis unit is used to analyze the first analysis chart and the second analysis chart to obtain analysis results.
  • the display module 50 further includes:
  • a judgment unit configured to judge whether there is a fault in the circuit of the sensor according to the analysis result
  • the first output unit is used to output a fault prompt and generate a test report if the judgment result is yes;
  • the second search unit is configured to search historical diagnosis records of sensor circuit faults corresponding to vehicles of the same type that match the vehicle from the database based on the test report to obtain a maintenance plan, wherein the database has multiple pre-stored records. Fault repair plans for each vehicle’s sensors;
  • the third search unit is used to search for a maintenance plan that matches the analysis results from the historical diagnosis records, where the maintenance plan includes a sensor circuit fault description and maintenance suggestions;
  • the second output unit is used to indicate that there is no fault in the sensor circuit of the vehicle if the judgment result is no, and to output a normal prompt.
  • this application also discloses a computer device, including a memory and a processor.
  • the memory stores a computer program.
  • the processor executes the computer program, the method for testing automobile circuit faults as described above is implemented. step.
  • the present application also discloses a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the steps of the method for testing automotive circuit faults as described above are implemented.
  • the disclosed equipment, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only the division of logical functions.
  • there may be other division methods, and units with the same functions may also be assembled into one unit.
  • Units, eg multiple units or components may be combined or integrated into another diagnostic system, or some features may be omitted, or not performed.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be electrical, mechanical or other forms of connection.
  • a component may or may not be a physical unit, that is, it may be located in one place, or it may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a storage medium.
  • the technical solution of the present application is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause an electronic device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only processor (ROM, Read-Only Memory), magnetic disk or optical disk and other media that can store program code.

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Abstract

一种汽车电路故障测试的方法、装置和计算机设备,应用于诊断工具,汽车电路故障测试的方法包括以下步骤:与车辆建立通讯连接,以获取车辆的汽车信息(S1);根据汽车信息对车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,测试数据为传感器在一定时间段内的实时电压数据(S2);对测试数据进行整合分析,以生成第一波形图表,其中,第一波形图表包括实时电压数据对应的当前电压-时间曲线(S3);将第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果(S4);根据分析结果,以生成测试报告并将测试报告显示在屏幕上(S5)。

Description

一种汽车电路故障测试的方法、装置和计算机设备
相关申请的交叉引用
本申请要求于2022年05月10日提交中国国家知识产权局的申请号为202210502624.8、名称为“一种汽车电路故障测试的方法、装置和计算机设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及汽车诊断技术领域,尤其涉及一种汽车电路故障测试的方法、装置和计算机设备。
背景技术
在汽车诊断中,遇到器件出现故障报警时,多数会采用示波器进行电路故障排查、诊断。市场上示波器一般被分做两种,一种称为普通或工业示波器,一种称为汽车示波器。汽车示波器,就是用来检测汽车电子电路故障的示波器,也是用来采集电压信号的一个仪器,由于其采集的信号基于时间有一定的连续,故成“波”,将该“波”显示出来即为示波。
现有的汽车示波器在进行汽车测试时,往往都需要专业的维修人员操作,根据汽车示波器测试的结果进行分析判断测试的电路有没有故障,若存在故障,维修人员就根据自己的经验去排查故障并维修;这样的设备就对于使用人员要求比较高,非专业人士无法使用,且在示波器测试完成后,并没有专业的标准来恒定测试是否正常,仅仅靠经验判断不是很准确,进而增加了汽车维修的难度。
因此,现有技术存在缺陷,需要改进。
发明内容
为了解决现有技术存在的缺陷,本申请提供了一种汽车电路故障测试的方法、装置和计算机设备。
本申请提供的技术文案,一种汽车电路故障测试的方法,应用于示波器,该方法包括以下步骤:
与车辆建立通讯连接,以获取所述车辆的汽车信息;
根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于 第二自定义预设条件生成;
根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
可选的,与车辆建立通讯连接,以获取所述车辆的汽车信息的具体步骤,包括:
通过诊断接头与车辆之间建立通信链路,从所述车辆中读取车辆识别码;
根据所述车辆识别码从数据库中查找与所述车辆识别码相匹配的汽车信息,其中,所述汽车信息包括车系信息、车型信息、年款信息、里程信息和传感器信息。
可选的,根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据的具体步骤,包括:
解析所述汽车信息,以得到车型信息;
根据所述车型信息,选择相对应的车型以进入所述车辆的传感器图表;
根据所述传感器图表选择对应的传感器进行测试电路电压,以得到测试数据。
可选的,所述第一波形图表的横轴为时间轴,所述第一波形图表的纵轴为电压值。
可选的,将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果的具体步骤,包括:
将所述第一波形图表与数据库中的第二波形图表进行比对,得到第一分析图表,其中,所述第二波形图表为该传感器在第一自定义预设条件下生成的标准电压波形图表;
将所述第一波形图表与数据库中的第三波形图表进行比对,得到第二分析图表,其中,所述第三分析图表为该车辆在第二自定义预设条件下生成的实测电压波形图表;
对所述第一分析图表和所述第二分析图表进行分析,以得到分析结果。
可选的,根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上的具体步骤,包括:
根据所述分析结果判断所述传感器的电路是否存在故障;
若判断结果为是,则输出故障提示并生成测试报告;
根据所述测试报告从数据库中查找与所述车辆相匹配的同类型车辆对应传感器电路故障的历史诊断记录,以得到维修方案,其中,所述数据库中预先存储有多个车辆的各个传感器的故障维修方案;
从历史诊断记录中查找与分析结果相匹配的维修方案,其中,所述维修方案包括传感器电路故障描述和维修建议。
可选的,在根据所述分析结果判断所述传感器的电路是否存在故障的步骤之后,包括:
若判断结果为否,则表示所述车辆的传感器电路并不存在故障,并输出正常的提示。
本申请还公开了一种汽车电路故障测试装置,包括:
通讯模块,用于与车辆建立通讯连接,以获取所述车辆的汽车信息;
测试模块,用于根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
整合模块,用于对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
比对模块,用于将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于第二自定义预设条件生成;
显示模块,用于根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
本申请还公开了一种计算机设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器执行所述计算机程序时实现如上所述汽车电路故障测试的方法的步骤。
本申请还公开了一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如上所述汽车电路故障测试的方法的步骤。
有益效果:本申请通过示波器与车辆建立通讯连接,可从汽车的ECU中读取汽车信息,读取信息方便快捷;根据所述汽车信息对需要检测的传感器进行测试,以得到测试数据,保证测试的传感器与该车辆对应,便于后续对测试数据进行分析;通过示波器对所述测试数据进行整合分析,以生成第一波形图表,以波形图表展示该传感器测试得到的实时电压数据,使得电压数据更为直观;通过将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,通过分析结果可判断测试的传感器电路是否存在故障,不需要专业人士操作,且准确率高;根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上,用户可通过测试报告可直观地查看传感器电路是否存在故障或者故障问题所在,同时示波器还可以根据测试报告给出专业的维修方案,指导用户排查故障、维修;本申请提高了示波器测试的效率,非专业人士也能操作,降低局限性,同时也提升了用户的体验感。
附图说明
图1为本申请的汽车电路故障测试的方法流程图示意图;
图2为本申请的汽车电路故障测试装置的结构示意图;
图3为本申请的计算机设备结构示意图。
图例所示:10、通讯模块;20、测试模块;30、整合模块;40、比对模块;50、显示模块。
具体实施方式
为了便于理解本申请,下面结合附图和具体实施例,对本申请进行更详细的说明。附图中给出了本申请的较佳的实施例。但是,本申请可以以许多不同的形式来实现,并不限 于本说明书所描述的实施例。相反地,提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
需要说明的是,当元件被称为“固定于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。本说明书所使用的术语“固定”、“一体成型”、“左”、“右”以及类似的表述只是为了说明的目的,在图中,结构相似的单元是用以相同标号标示。
除非另有定义,本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是用于限制本申请。
下面结合附图对本申请作详细说明。
实施例一:
请参阅图1,一种汽车电路故障测试的方法,应用于示波器,所述示波器与车辆通讯连接,如示波器可以是OBD设备,将OBD设备与车辆的OBD接口连接,所述OBD接口可以是汽车中OBD系统对外提供的接口,OBD设备通过与汽车的OBD接口连接,示波器也可以与汽车通过OBD接头连接,OBD接头与车辆的OBD接口连接,OBD接头与示波器远程连接。该方法包括以下步骤:
步骤S1、与车辆建立通讯连接,以获取所述车辆的汽车信息;
步骤S2、根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
步骤S3、对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
步骤S4、将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于第二自定义预设条件生成;
步骤S5、根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
如上述步骤S1-S5所述,在使用示波器测试汽车电路时,通过示波器与车辆建立通讯连接后,可从车辆的车身电脑中获取车辆信息,用户确认车辆信息与该车辆符合后,则可使用示波器对车辆需要检测的传感器电路进行测试,得到该传感器在一定时间段内的实时电压数据,将实时电压数据整合后,生成一个第一波形图表,将第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,得到分析结果,示波器可根据分析结果判断传感器电路是否存在故障,最后示波器根据分析结果,生成一个可视化测试报告显示在屏幕 上,用户可通过测试报告直观地看到传感器是否存在故障。
在本实施例中,示波器是一款用来记录随时间变化的电量(电流、电压等)的仪器,示波器可以显示一个连续、完整的信号波形。具备以下几个作用与优点:
1、能够确定系统的运行状态是否正常工作;
2、分析某个电器或者某段电路的故障,直指故障所在;
3、测试控制单元之间的网络通信情况;
4、可显示电子信号的全貌,显示更准确、更形象。
示波器一般由信号采集装置(探针、探头等)、处理器与显示器组成。使用示波器时,需要将探针与示波器连接,启动示波器后,通过使用探针接触待测器件的某一电路位置,即可读取该位置的电压信号,并将电压信号呈连续波形显示在屏幕上。
在一个实施例中,与车辆建立通讯连接,以获取所述车辆的汽车信息的具体步骤,包括:
步骤S11、通过诊断接头与车辆之间建立通信链路,从所述车辆中读取车辆识别码;
步骤S12、根据所述车辆识别码从数据库中查找与所述车辆识别码相匹配的汽车信息,其中,所述汽车信息包括车系信息、车型信息、年款信息、里程信息和传感器信息。
如上述步骤S11和S12所述,示波器与车辆进行连接后,从车辆的车身电脑中读取汽车的车辆识别号,具体可从所述车辆的OBD模块中获取对应的车辆识别号;示波器的数据库中存储有多个不同车系、型号的汽车信息,通过车辆识别号即可在示波器的数据库中查找到与车辆识别号相关联的汽车信息,方便快捷,且预存储数据准确无误。
在本实施例中,车辆识别号(Vehicle Identification Number,或车架号码),简称车辆识别号,是一组由十七个字母或数字组成,用于汽车上的一组独一无二的号码,可以识别汽车的生产商、引擎、底盘序号及其他性能等资料。车辆识别码可在车辆行驶证、机动车驾驶证、车辆保险单、左右车门B柱下方、发动机舱左右减震轮旋(或纵深)、驾驶舱前防火墙、副驾驶仓脚下底板、前风挡左下角和仪表盘等位置处发现。
在一个实施例中,根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据的具体步骤,包括:
步骤S21、解析所述汽车信息,以得到车型信息;
步骤S22、根据所述车型信息,选择相对应的车型以进入所述车辆的传感器图表;
步骤S23、根据所述传感器图表选择对应的传感器进行测试电路电压,以得到测试数据。
如上述步骤S21-S23所述,通过解析汽车信息可以得到该车辆的具体车型信息,根据车型信息选择对应的车型可看到该车辆的传感器图表,该图表包括车辆的所有传感器,对 某一个传感器测试,选择该传感器即可进行测试,得到测试数据后与该车辆型号以及传感器绑定。汽车上使用的传感器有很多,在对某一个传感器进行测试时,需要具体到某一车型的某一个传感器,以保证得到的测试数据能够与车型以及传感器对应。
在一个实例中,所述第一波形图表的横轴为时间轴,所述第一波形图表的纵轴为电压值。
在一个实例中,将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果的具体步骤,包括:
步骤S41、将所述第一波形图表与数据库中的第二波形图表进行比对,得到第一分析图表,其中,所述第二波形图表为该传感器在第一自定义预设条件下生成的标准电压波形图表;
步骤S42、将所述第一波形图表与数据库中的第三波形图表进行比对,得到第二分析图表,其中,所述第三分析图表为该车辆在第二自定义预设条件下生成的实测电压波形图表;
步骤S43、对所述第一分析图表和所述第二分析图表进行分析,以得到分析结果。
在本实施例中,第一自定义预设条件为同车型同型号的传感器在没有任何干扰且能正常稳定工作情况下的,通过专用传感器测试夹具测试,得到传感器在一段时间内的标准电压数据,并生成第二波形图表,将第二波形图表存储在示波器的数据库中;第二自定义预设条件为传感器在同型号汽车上使用时,通过示波器测试不同使用程度的传感器,得到实测电压数据,并生成第三波形图表,将第三波形图表存储在示波器的数据库中;传感器在实际使用中,因为汽车的使用年限以及里程不同,表现的信号波形都是不一样的,因此需要把多个车型根据使用时间、里程大小等维度进行测试,得到第三波形图表。
在一个实施例中,根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上的具体步骤,包括:
步骤S51、根据所述分析结果判断所述传感器的电路是否存在故障;
步骤S52、若判断结果为是,则输出故障提示并生成测试报告;
步骤S53、根据所述测试报告从数据库中查找与所述车辆相匹配的同类型车辆对应传感器电路故障的历史诊断记录,以得到维修方案,其中,所述数据库中预先存储有多个车辆的各个传感器的故障维修方案;
步骤S54、从历史诊断记录中查找与分析结果相匹配的维修方案,其中,所述维修方案包括传感器电路故障描述和维修建议。
如上述步骤S51-S54所述,进行比对得到分析结果后,示波器可根据分析结果判断传感器是否存在故障,若具有故障,则会输出故障提示并生成一个测试报告,方便用户根据 测试报告查看传感器的状态,非专业人士也可以辨别故障,同时根据测试报告,示波器还能够在数据中查找匹配到与同类型车辆传感器电路故障的历史记录,从历史记录中查找到与该传感器故障相同的维修方案,用户根据维修方案即可排除故障,极大地提高了示波器的实用性,降低了使用难度,提高了用户的体验感。
在一个实施例中,在根据所述分析结果判断所述传感器的电路是否存在故障的步骤之后,包括:
步骤S55、若判断结果为否,则表示所述车辆的传感器电路并不存在故障,并输出正常的提示。
如上述步骤S55所述,若不存在故障,输出正常的提示,提高了示波器测试的效率,避免人为判断失误,提高了故障诊断的准确率。
实施例二:
请参阅图2,本申请还公开了一种汽车电路故障测试装置,包括:
通讯模块10,用于与车辆建立通讯连接,以获取所述车辆的汽车信息;
测试模块20,用于根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
整合模块30,用于对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
比对模块40,用于将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于第二自定义预设条件生成;
显示模块50,用于根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
在一个实施例中,所述通讯模块10还包括:
建立单元,用于通过诊断接头与车辆之间建立通信链路,从所述车辆中读取车辆识别码;
查找单元,用于根据所述车辆识别码从数据库中查找与所述车辆识别码相匹配的汽车信息,其中,所述汽车信息包括车系信息、车型信息、年款信息、里程信息和传感器信息。
在一个实施例中,所述测试模块20还包括:
解析单元,用于解析所述汽车信息,以得到车型信息;
选择单元,用于根据所述车型信息,选择相对应的车型以进入所述车辆的传感器图表;
测试单元,用于根据所述传感器图表选择对应的传感器进行测试电路电压,以得到测试数据。
在一个实施例中,所述比对模块40还包括:
第一比对单元,用于将所述第一波形图表与数据库中的第二波形图表进行比对,得到第一分析图表,其中,所述第二波形图表为该传感器在第一自定义预设条件下生成的标准电压波形图表;
第二比对单元,用于将所述第一波形图表与数据库中的第三波形图表进行比对,得到第二分析图表,其中,所述第三分析图表为该车辆在第二自定义预设条件下生成的实测电压波形图表;
分析单元,用于对所述第一分析图表和所述第二分析图表进行分析,以得到分析结果。
在一个实施例中,所述显示模块50还包括:
判断单元,用于根据所述分析结果判断所述传感器的电路是否存在故障;
第一输出单元,用于若判断结果为是,则输出故障提示并生成测试报告;
第二查找单元,用于根据所述测试报告从数据库中查找与所述车辆相匹配的同类型车辆对应传感器电路故障的历史诊断记录,以得到维修方案,其中,所述数据库中预先存储有多个车辆的各个传感器的故障维修方案;
第三查找单元,用于从历史诊断记录中查找与分析结果相匹配的维修方案,其中,所述维修方案包括传感器电路故障描述和维修建议;
第二输出单元,用于若判断结果为否,则表示所述车辆的传感器电路并不存在故障,并输出正常的提示。
实施例三:
请参阅图3,本申请还公开了一种计算机设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器执行所述计算机程序时实现如上所述汽车电路故障测试的方法的步骤。
本申请还公开了一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如上所述汽车电路故障测试的方法的步骤。
在本申请所提供的实施例中,应该理解到,所揭露的设备、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为逻辑功能划分,实际实现时可以有另外的划分方式,也可以将具有相同功能的单元集合成一个单元,例如多个单元或组件可以结合或者可以集成到另一个诊断系统,或一些特征可以忽略,或不执行。另外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接,也可以是电的,机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的 部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分,或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台电子设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读处理器(ROM,Read-Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
需要说明的是,上述各技术特征继续相互组合,形成未在上面列举的各种实施例,均视为本申请说明书记载的范围;并且,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (10)

  1. 一种汽车电路故障测试的方法,应用于示波器,其特征在于:该方法包括以下步骤:
    与车辆建立通讯连接,以获取所述车辆的汽车信息;
    根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
    对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
    将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于第二自定义预设条件生成;
    根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
  2. 根据权利要求1所述汽车电路故障测试的方法,其特征在于,与车辆建立通讯连接,以获取所述车辆的汽车信息的具体步骤,包括:
    通过诊断接头与车辆之间建立通信链路,从所述车辆中读取车辆识别码;
    根据所述车辆识别码从数据库中查找与所述车辆识别码相匹配的汽车信息,其中,所述汽车信息包括车系信息、车型信息、年款信息、里程信息和传感器信息。
  3. 根据权利要求2所述汽车电路故障测试的方法,其特征在于,根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据的具体步骤,包括:
    解析所述汽车信息,以得到车型信息;
    根据所述车型信息,选择相对应的车型以进入所述车辆的传感器图表;
    根据所述传感器图表选择对应的传感器进行测试电路电压,以得到测试数据。
  4. 根据权利要求1所述汽车电路故障测试的方法,其特征在于,所述第一波形图表的横轴为时间轴,所述第一波形图表的纵轴为电压值。
  5. 根据权利要求1所述汽车电路故障测试的方法,其特征在于,将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果的具体步骤,包括:
    将所述第一波形图表与数据库中的第二波形图表进行比对,得到第一分析图表,其中,所述第二波形图表为该传感器在第一自定义预设条件下生成的标准电压波形图表;
    将所述第一波形图表与数据库中的第三波形图表进行比对,得到第二分析图表,其中,所述第三波形图表为该车辆在第二自定义预设条件下生成的实测电压波形图表;
    对所述第一分析图表和所述第二分析图表进行分析,以得到分析结果。
  6. 根据权利要求1所述汽车电路故障测试的方法,其特征在于,根据所述分析结果, 以生成测试报告并将所述测试报告显示在屏幕上的具体步骤,包括:
    根据所述分析结果判断所述传感器的电路是否存在故障;
    若判断结果为是,则输出故障提示并生成测试报告;
    根据所述测试报告从数据库中查找与所述车辆相匹配的同类型车辆对应传感器电路故障的历史诊断记录,以得到维修方案,其中,所述数据库中预先存储有多个车辆的各个传感器的故障维修方案;
    从历史诊断记录中查找与分析结果相匹配的维修方案,其中,所述维修方案包括传感器电路故障描述和维修建议。
  7. 根据权利要求6所述汽车电路故障测试的方法,其特征在于,在根据所述分析结果判断所述传感器的电路是否存在故障的步骤之后,包括:
    若判断结果为否,则表示所述车辆的传感器电路并不存在故障,并输出正常的提示。
  8. 一种汽车电路故障测试装置,其特征在于,包括:
    通讯模块,用于与车辆建立通讯连接,以获取所述车辆的汽车信息;
    测试模块,用于根据所述汽车信息对所述车辆的至少一个传感器的电路电压进行测试,以得到测试数据,其中,所述测试数据为该传感器在一定时间段内的实时电压数据;
    整合模块,用于对所述测试数据进行整合分析,以生成第一波形图表,其中,所述第一波形图表包括实时电压数据对应的当前电压-时间曲线;
    比对模块,用于将所述第一波形图表与数据库中的第二波形图表和第三波形图表进行比对,以得到分析结果,其中,所述第二波形图表基于第一自定义预设条件生成,所述第三波形图表基于第二自定义预设条件生成;
    显示模块,用于根据所述分析结果,以生成测试报告并将所述测试报告显示在屏幕上。
  9. 一种计算机设备,包括存储器和处理器,所述存储器存储有计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求1至7中任何一项所述汽车电路故障测试的方法的步骤。
  10. 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现权利要求1至7中任何一项所述汽车电路故障测试的方法的步骤。
PCT/CN2023/091374 2022-05-10 2023-04-27 一种汽车电路故障测试的方法、装置和计算机设备 WO2023216912A1 (zh)

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