CN117782157A - Test method and device for vehicle-mounted combination instrument - Google Patents

Abstract

The embodiment of the application provides a test method and device for a vehicle-mounted combination instrument, wherein the method comprises the following steps: sending a test instruction containing a test item to a vehicle-mounted combination instrument to be tested; receiving test data of test items sent by a vehicle-mounted combination instrument; and comparing the test data of the test item with the standard data to obtain a test result of the test item. In the embodiment of the application, the test equipment directly sends the test instruction containing the test item to the vehicle-mounted combination instrument to be tested, and receives the test data of the test item fed back by the vehicle-mounted combination instrument, so that the test result of the test item is determined according to the test data and the standard data of the test item, the time of manual operation is reduced, and the test efficiency is improved; meanwhile, the test equipment does not need a complex physical device, the test instruction containing the test item sent by the test equipment is pre-stored, and the needed equipment resources are less, so that the test cost is reduced.

Description

Test method and device for vehicle-mounted combination instrument

Technical Field

The application relates to the technical field of vehicles, in particular to a test method and device of a vehicle-mounted combination instrument.

Background

The vehicle-mounted combination instrument is one of the interactive interfaces of a driver and a vehicle, provides the driver with information such as required speed, residual electric quantity, gear, mileage, indicator lamps and the like, and is one of indispensable components of the vehicle. The accuracy of the in-vehicle combination meter is directly related to the driving operation of the driver on the vehicle. Therefore, in order to ensure that the vehicle-mounted combination instrument has higher accuracy, the vehicle-mounted combination instrument needs to be subjected to relevant tests.

In the prior art, a whole vehicle is generally used for testing a vehicle-mounted combination instrument or a complex object rack is built for testing the vehicle-mounted combination instrument. The method for testing the vehicle-mounted combination instrument by using the whole vehicle is to install the vehicle-mounted combination instrument to be tested on the whole vehicle, and finally realize the test of the vehicle-mounted combination instrument by controlling the corresponding vehicle functions and observing the vehicle-mounted combination instrument. For example, when the gear display function of the vehicle-mounted combination instrument is tested, the vehicle is controlled to be in R gear, and meanwhile, whether the gear display module of the vehicle-mounted combination instrument is in R gear is observed, so that the gear display function of the vehicle-mounted combination instrument is tested. Building a complex physical rack to test the vehicle-mounted combination instrument means building a physical rack comprising a to-be-tested item signal generating device to test the vehicle-mounted combination instrument. For example, when the vehicle speed display function of the vehicle-mounted combination instrument is tested, a physical bench comprising a motor and a vehicle speed sensor is built, the motor is controlled to rotate according to a control instruction of a preset vehicle speed, a vehicle speed signal obtained by the vehicle speed sensor and related equipment is sent to the vehicle-mounted combination instrument, whether the vehicle speed display of the vehicle-mounted combination instrument is the preset vehicle speed is observed, and further the gear display function of the vehicle-mounted combination instrument is tested.

However, when the vehicle-mounted combination meter is tested by using the whole vehicle, a great deal of time may be wasted in testing the vehicle-mounted combination meter due to the need of manually operating various test items and observing the display of the meter, so that the test efficiency is lower; when a complex object rack is built to test the vehicle-mounted combination instrument, the required built object rack is complex, and required equipment resources are more, so that the cost is higher.

It should be noted that the information disclosed in the background section of the present application is only intended to enhance understanding of the general background of the present application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

Disclosure of Invention

In view of this, the application provides a method, a system and a device for testing a vehicle-mounted combination instrument, so as to solve the problems of lower testing efficiency and higher cost in the prior art when the vehicle-mounted combination instrument is tested by using the whole vehicle or a complex object rack is built for testing the vehicle-mounted combination instrument.

In a first aspect, an embodiment of the present application provides a method for testing a vehicle-mounted combination meter, including:

transmitting a test instruction containing a test item to a vehicle-mounted combination instrument to be tested, wherein the test instruction is used for testing the test item of the vehicle-mounted combination instrument to obtain test data of the test item;

receiving test data of the test items sent by the vehicle-mounted combination instrument;

and comparing the test data of the test item with standard data to obtain a test result of the test item.

In one possible implementation manner, the sending, to the vehicle-mounted combination meter to be tested, a test instruction including a test item includes:

and responding to a test operation triggered by a user, and sending a test instruction containing a test item to the vehicle-mounted combination instrument to be tested, wherein the test operation is used for indicating to test the test item.

In one possible implementation manner, the sending, in response to a test operation triggered by a user, a test instruction including a test item to an in-vehicle combination meter to be tested includes:

and responding to a first test operation triggered by a user, and sending a first test instruction containing one test item to the vehicle-mounted combination instrument to be tested, wherein the first test operation is used for indicating to test one test item.

In one possible implementation manner, the sending, in response to a test operation triggered by a user, a test instruction including a test item to an in-vehicle combination meter to be tested includes:

and responding to a second test operation triggered by the user, and sending a second test instruction containing a plurality of test items to the vehicle-mounted combination instrument to be tested, wherein the second test operation is used for indicating to test the plurality of test items.

In one possible implementation manner, the comparing the test data of the test item with standard data to obtain a test result of the test item includes:

if the test data of the test item is matched with the standard data, obtaining a qualified test result of the test item;

and if the test data of the test item is not matched with the standard data, obtaining a disqualified test result of the test item.

In one possible implementation, the test item includes: at least one of a vehicle speed test, a time test, an electric quantity test, a gear test, a cruising test and an indicator lamp test.

In a second aspect, embodiments of the present application provide a test apparatus, including: the system comprises an upper computer and a diagnostic instrument, wherein the upper computer is in communication connection with the diagnostic instrument, and the diagnostic instrument is used for being electrically connected with a vehicle-mounted combination instrument to be tested;

the upper computer is used for sending a test instruction containing a test item to the diagnostic instrument;

the diagnostic instrument is used for sending the test instruction to the vehicle-mounted combination instrument, and the test instruction is used for testing the test item of the vehicle-mounted combination instrument to obtain test data of the test item;

the diagnostic instrument is also used for receiving and sending the test data of the test items sent by the vehicle-mounted combination instrument to the upper computer;

the upper computer is also used for comparing the test data of the test item with standard data to obtain a test result of the test item.

In one possible implementation manner, the test device further includes:

the communication board, the diagnostic apparatus is used for through the communication board is connected with the on-vehicle combination meter electricity of waiting to test.

In one possible implementation of the present invention,

the communication board comprises an overcurrent protection circuit, and the overcurrent protection circuit is used for carrying out overcurrent protection on the diagnostic instrument.

In one possible implementation of the present invention,

the communication board comprises an impedance matching circuit, and the impedance matching circuit is used for carrying out impedance matching on the vehicle-mounted combination instrument.

In a third aspect, embodiments of the present application provide a test apparatus, including:

a processor;

a memory;

and a computer program, wherein the computer program is stored in the memory, the computer program comprising instructions which, when executed by the processor, cause the test apparatus to perform the method of any of the first aspects.

In the embodiment of the application, the test equipment directly sends the test instruction containing the test item to the vehicle-mounted combination instrument to be tested, and receives the test data of the test item fed back by the vehicle-mounted combination instrument, so that the test result of the test item is determined according to the test data and the standard data of the test item, the time of manual operation is reduced, and the test efficiency is improved; meanwhile, the test equipment does not need a complex physical device, the test instruction containing the test item sent by the test equipment is pre-stored, and the needed equipment resources are less, so that the test cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, 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 testing method of a vehicle-mounted combination meter according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a man-machine interaction interface according to an embodiment of the present application.

Fig. 3 is a schematic diagram of another man-machine interaction interface according to an embodiment of the present application.

Fig. 4 is a schematic diagram of another man-machine interaction interface according to an embodiment of the present application.

Fig. 5 is a flow chart of another test method of the vehicle-mounted combination meter according to the embodiment of the application.

Fig. 6 is a schematic structural diagram of a test apparatus according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of another test apparatus according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a communication board according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of another test apparatus according to an embodiment of the present invention.

Detailed Description

For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one way of describing an association of associated objects, meaning that there may be three relationships, e.g., a and/or b, which may represent: the first and second cases exist separately, and the first and second cases exist separately. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the related art, a vehicle-mounted combination instrument is usually tested by using the whole vehicle or a complex object rack is built for testing the vehicle-mounted combination instrument.

The method for testing the vehicle-mounted combination instrument by using the whole vehicle is to install the vehicle-mounted combination instrument to be tested on the whole vehicle, and finally realize the test of the vehicle-mounted combination instrument by controlling the corresponding vehicle functions and observing the vehicle-mounted combination instrument. The gear display function of the vehicle-mounted combination instrument is tested by an example, controlling the vehicle to be in R gear, and observing whether the gear display module of the vehicle-mounted combination instrument is in R gear or not at the same time, so that the gear display function of the vehicle-mounted combination instrument is tested; and when the display function of the indicator lamp of the vehicle-mounted combination instrument is tested, the vehicle is controlled to turn on the left steering lamp, and meanwhile, whether the display module of the indicator lamp of the vehicle-mounted combination instrument is the left steering lamp or not is observed, so that the display function of the indicator lamp of the vehicle-mounted combination instrument is tested.

Building a complex physical rack to test the vehicle-mounted combination instrument means building a physical rack comprising a to-be-tested item signal generating device to test the vehicle-mounted combination instrument. When the vehicle speed display function of the vehicle-mounted combination instrument is tested, a physical bench comprising a motor and a vehicle speed sensor is built, the motor is controlled to rotate according to a control instruction of a preset vehicle speed, a vehicle speed signal obtained by the vehicle speed sensor and related equipment is sent to the vehicle-mounted combination instrument, whether the vehicle speed display of the vehicle-mounted combination instrument is the preset vehicle speed is observed, and further the gear display function of the vehicle-mounted combination instrument is tested; similarly, when the electric quantity display function of the vehicle-mounted combination instrument is tested, a physical bench comprising a storage battery and a testing device for the residual electric quantity of the storage battery is built, the storage battery is charged, when the electric quantity of the storage battery reaches the preset electric quantity, an electric quantity signal obtained by the testing device for the electric quantity of the storage battery and related equipment is sent to the vehicle-mounted combination instrument, whether the electric quantity display of the vehicle-mounted combination instrument is the preset residual electric quantity is observed, and then the electric quantity display function of the vehicle-mounted combination instrument is tested.

However, when the vehicle-mounted combination meter is tested by using the whole vehicle, a great deal of time may be wasted in testing the vehicle-mounted combination meter due to the need of manually operating various test items and observing the display of the meter, so that the test efficiency is lower; when a complex object rack is built to test the vehicle-mounted combination instrument, the required built object rack is complex, and required equipment resources are more, so that the cost is higher.

Aiming at the problems, in the embodiment of the application, the test equipment directly sends the test instruction containing the test item to the vehicle-mounted combination instrument to be tested, and receives the test data of the test item fed back by the vehicle-mounted combination instrument, so that the test result of the test item is determined according to the test data and the standard data of the test item, the time of manual operation is reduced, and the test efficiency is improved; meanwhile, the test equipment does not need a complex physical device, the test instruction containing the test item sent by the test equipment is pre-stored, and the needed equipment resources are less, so that the test cost is reduced. In particular, the following detailed description is made with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, a flow chart of a testing method of a vehicle-mounted combination meter according to an embodiment of the present application is shown. As shown in fig. 1, the following steps are specifically included.

Step S101: and sending a test instruction containing the test item to the vehicle-mounted combination instrument to be tested.

In the embodiment of the application, the test equipment sends a test instruction containing a test item to the vehicle-mounted combination instrument to be tested. The test instruction is used for instructing the vehicle-mounted combination instrument to test the instrument display module corresponding to the test item. It can be understood that after the vehicle-mounted combination instrument receives the test instruction sent by the test equipment, the test equipment tests the instrument display module corresponding to the test item in the vehicle-mounted combination instrument according to the test instruction containing the test item. When the test item in the test instruction is an electric quantity test, the test equipment tests an instrument display module corresponding to the electric quantity test in the vehicle-mounted combination instrument after receiving the test instruction containing the electric quantity test sent by the test equipment.

It should be noted that, the meter display module corresponding to the test item described above refers to a part of the vehicle-mounted combination meter. When the test item is a vehicle speed test, the instrument display module corresponding to the test item is a vehicle speed instrument display module, and the vehicle speed instrument display module is a part of a vehicle-mounted combination instrument.

In one possible implementation, the test items described above include at least one of a vehicle speed test, a time test, a power test, a gear test, a endurance test, and an indicator light test. Of course, those skilled in the art may include other tests in the test item according to actual needs, and the application is not limited in this regard.

In the embodiment of the application, the test instruction further comprises standard data corresponding to the test item. For example, when the test item is a vehicle speed test, the test instruction further comprises standard data corresponding to the vehicle speed test, namely 10km/h, 20km/h, 30km/h, 40km/h, 50km/h, 60km/h and the like; similarly, when the test item is an electric quantity test, the test instruction further includes standard data corresponding to the electric quantity test, namely 10%, 20%, 30%, 40%, 50%, 60% and the like.

It can be understood that after the vehicle-mounted combination instrument receives the test instruction sent by the test equipment, the test equipment tests the vehicle-mounted combination instrument according to the standard data containing the test item and corresponding to the test item. For example, when the test item is a vehicle speed test and the standard data corresponding to the test item is 10km/h, 20km/h, 30km/h, 40km/h, 50km/h and 60km/h, the vehicle-mounted combination meter inputs a plurality of standard data, namely 10km/h, 20km/h, 30km/h, 40km/h, 50km/h and 60km/h, to the meter display module corresponding to the vehicle speed test in the vehicle-mounted combination meter, so as to realize the test of the meter display module corresponding to the vehicle speed test.

In one possible implementation, standard data corresponding to the test item in the test instruction is preset. Of course, according to actual needs, those skilled in the art may set standard data corresponding to the test item in the test instruction by the user, which is not particularly limited in this application.

In one possible implementation manner, a test instruction containing a test item is sent to an in-vehicle combination meter to be tested in response to a triggered test operation of a user, wherein the test operation is used for indicating to test the test item. Specifically, in the embodiment of the application, by clicking the corresponding functional area on the screen of the test device, the test device is further enabled to send a test instruction containing the test item to the vehicle-mounted combination instrument to be tested. It should be noted that the test apparatus includes a man-machine interface, which is referred to as a "screen" in the above, and is described below in connection with a man-machine interface of a specific test apparatus for ease of understanding.

Referring to fig. 2, a schematic diagram of a human-computer interaction interface according to an embodiment of the present application is provided. As shown in fig. 2, the respective functional areas such as "on", "off", "vehicle speed", "time", "electric quantity", "gear", "cruising" and "indicator light" are shown in the figure, and the user can correspondingly implement the respective functions by clicking or touching the respective functional areas. The user can click on a 'vehicle speed' area on a screen of the testing device, so that the testing device sends a testing instruction containing a vehicle speed test to the vehicle-mounted combination instrument to be tested; similarly, the user can click on an electric quantity area on the screen of the testing device, so that the testing device sends a testing instruction containing electric quantity testing to the vehicle-mounted combination instrument to be tested. Of course, it should be noted that the man-machine interaction interface shown in fig. 2 is merely an exemplary illustration, and those skilled in the art may add or delete corresponding functional areas in the man-machine interaction interface according to actual needs, which is not limited in this application.

In one possible implementation manner, a first test instruction containing one test item is sent to the vehicle-mounted combination meter to be tested in response to a first test operation triggered by a user, wherein the first test operation is used for indicating to test the one test item. Specifically, in the embodiment of the application, after the user triggers the first test operation, the test device tests the meter display module corresponding to one test item in the vehicle-mounted combination meter according to the first test instruction including the one test item.

For ease of understanding, referring to fig. 3, a schematic diagram of another human-computer interaction interface is provided in an embodiment of the present application. The first test operation may be that the user clicks "speed", so that the test device may test the meter display module corresponding to the speed test in the vehicle-mounted combination meter according to the first test instruction. Of course, the first test operation may be "time" and "power" for the user according to actual needs, which is not specifically limited in this application.

In one possible implementation manner, a second test instruction comprising a plurality of test items is sent to the vehicle-mounted combination meter to be tested in response to a second test operation triggered by a user, wherein the second test operation is used for indicating the test of the plurality of test items. Specifically, in the embodiment of the application, after the user triggers the second test operation, the test device tests the meter display module corresponding to the plurality of test items in the vehicle-mounted combination meter according to the second test instruction including the plurality of test items.

For ease of understanding, referring to fig. 4, a schematic diagram of another human-computer interaction interface is provided in an embodiment of the present application. The second test operation may be a user clicking "multi-functional test", so that the test device may test the meter display module corresponding to the multi-functional test, that is, the vehicle speed meter display module, the time meter display module, and the electric quantity meter display module, in the vehicle-mounted combination meter according to the second test instruction.

Of course, it will be appreciated that one skilled in the art could devise instructions to test a plurality of other test items when the user clicks "multi-function test" as desired. For example, preferably, when the user clicks "multifunctional test", the test apparatus tests all meter display modules of the vehicle-mounted combination meter, which is not particularly limited in this application.

In practical application, before the test equipment sends a test instruction containing a test item to the vehicle-mounted combination instrument to be tested, communication connection between the test equipment and the vehicle-mounted combination instrument is opened.

Step S102: and receiving test data of the test items sent by the vehicle-mounted combination instrument.

In the embodiment of the application, after the vehicle-mounted combination instrument generates the test data corresponding to the test item according to the received test instruction, the test data is sent to the test equipment. The test data refers to that after the vehicle-mounted combination instrument receives a test instruction, corresponding test data is generated according to standard data in the test instruction. For example, when the standard data corresponding to the vehicle speed in the test command is 10km/h, 20km/h, 30km/h, 40km/h, 50km/h, and 60km/h, the in-vehicle combination meter generates the test data corresponding to the standard data.

Step S103: and comparing the test data of the test item with the standard data to obtain a test result of the test item.

In the embodiment of the application, after the test equipment receives the test data generated by the vehicle-mounted combination instrument, the test equipment compares the test data corresponding to the test item with the standard data to obtain the test result of the test item.

Specifically, in the embodiment of the application, when test equipment receives that test data generated by the vehicle-mounted combination instrument is matched with corresponding standard data, a qualified test result of a test item is obtained; and when the test equipment receives that the test data generated by the vehicle-mounted combination instrument is not matched with the corresponding standard data, obtaining a disqualified test result of the test item.

For example, when the standard data corresponding to the vehicle speed in the test command is 10km/h, 20km/h, 30km/h, 40km/h, 50km/h and 60km/h, and the test data generated by the test device receiving the vehicle-mounted combination meter is 10km/h, 20km/h, 30km/h, 40km/h, 50km/h and 60km/h, the test device receiving the test data generated by the vehicle-mounted combination meter is matched with the corresponding standard data, and then a qualified test result of the test item is obtained. For ease of understanding, reference may be made to the human-machine interface shown in fig. 3 above, and the "vehicle speed" displayed on the interface: 10km/h "," vehicle speed: 20km/h "," vehicle speed: 30km/h "," vehicle speed: 40km/h "," vehicle speed: 50km/h "and" vehicle speed: 60 km/h' is that test data generated by the vehicle-mounted combination instrument are received by test equipment; and the qualified interface is the output test result.

Similarly, for example, when the standard data corresponding to the vehicle speed in the test command is 10km/h, 20km/h, 30km/h, 40km/h, 50km/h and 60km/h, and the test data generated by the test device receiving the vehicle-mounted combination instrument is 10km/h, 21km/h, 30km/h, 40km/h, 50km/h and 60km/h, the test device receiving the test data generated by the vehicle-mounted combination instrument is not matched with the corresponding standard data, and then a failure test result of the test item is obtained.

In order to facilitate understanding, the following describes in detail a testing method of the vehicle-mounted combination meter provided in the embodiment of the present application in combination with a specific implementation manner.

Referring to fig. 5, a flow chart of a testing method of another vehicle-mounted combination meter according to an embodiment of the present application is shown. As shown in fig. 5, it mainly includes the following steps.

Step S501: the test equipment opens a communication interface with the vehicle-mounted combination instrument.

Step S502: the test equipment judges whether the communication with the vehicle-mounted combination instrument is possible.

The test device determines whether it can communicate with the in-vehicle combination meter, and when the test device can communicate with the in-vehicle combination meter, step S503 is executed, and when the test device cannot communicate with the in-vehicle combination meter, step S501 is executed.

Step S503: the test equipment sends a test instruction containing test items to the vehicle-mounted combination instrument to be tested.

It may be understood that in the embodiment of the present application, the test instruction may include one test item or multiple test items, which is not limited in this application.

Step S504: the test equipment receives test data of a vehicle speed test sent by the vehicle-mounted combination instrument.

Step S505: the test device judges whether the test data is consistent with the standard data.

The test equipment judges whether the test data is consistent with the standard data, and when the test data is consistent with the standard data, the step S506 is executed; when the test data does not coincide with the standard data, step S507 is performed.

Step S506: and (5) displaying qualification.

Step S507: and displaying disqualification.

The specific details of the embodiments of the present application may be referred to the descriptions in the embodiments shown in fig. 1, 2, 3 and 4, and are not repeated for brevity.

In the embodiment of the application, the test equipment directly sends the test instruction containing the test item to the vehicle-mounted combination instrument to be tested, and receives the test data of the test item fed back by the vehicle-mounted combination instrument, so that the test result of the test item is determined according to the test data and the standard data of the test item, the time of manual operation is reduced, and the test efficiency is improved; meanwhile, the test equipment does not need a complex physical device, the test instruction containing the test item sent by the test equipment is pre-stored, and the needed equipment resources are less, so that the test cost is reduced.

Corresponding to the embodiment of the method, the application also provides test equipment.

Referring to fig. 6, a schematic structural diagram of a test apparatus is provided in an embodiment of the present application. As shown in fig. 6, a test apparatus 601 and an in-vehicle combination meter 602 are shown. The test apparatus 601 specifically includes: the host computer 6011 and the diagnostic apparatus 6012. Specifically, the host computer 6011 is in communication connection with a diagnostic apparatus 6012, and the diagnostic apparatus 6012 is used for being electrically connected with the in-vehicle combination meter 602 to be tested. It will be appreciated that the connection between the host computer 6011 and the diagnostic apparatus 6012 shown in fig. 6 is merely used to characterize the communication relationship between the host computer 6011 and the diagnostic apparatus 6012, and is not used to indicate that a circuit exists between the host computer 6011 and the diagnostic apparatus 6012. It is understood that the information communication between the host computer 6011 and the diagnostic apparatus 6012 can be performed by wireless, which is not particularly limited in this application.

In this embodiment, the host computer 6011 is configured to send a test instruction including a test item to the diagnostic apparatus; the diagnostic apparatus 6012 is configured to send a test instruction to the vehicle-mounted combination instrument 602, where the test instruction is configured to test a test item of the vehicle-mounted combination instrument, so as to obtain test data of the test item; the diagnostic apparatus 6012 is further configured to receive and send test data of a test item sent by the vehicle-mounted combination instrument to the upper computer; the upper computer 6011 is further configured to compare the test data of the test item with standard data to obtain a test result of the test item.

The specific content related to the embodiments of the present application may be referred to the description of the embodiments of the method, which is not repeated for the sake of brevity.

It is to be noted that the in-vehicle combination meter 602 shown in fig. 6 is not a necessary structure in the test apparatus, and is shown in fig. 6 only for convenience in describing the connection relationship of the test apparatus and the in-vehicle combination meter.

In one possible implementation, the host computer 6011 is configured to send a test instruction including a test item to the diagnostic apparatus 6012 in response to a test operation triggered by a user; the diagnostic apparatus 6012 then transmits a test instruction including a test item to the vehicle-mounted combination meter to be tested, and the test operation is used for indicating to test the test item. The specific content related to the embodiments of the present application may be referred to the description of the embodiments of the method, which is not repeated for the sake of brevity.

In one possible implementation, the host computer 6011 is configured to send a test instruction including a test item to the diagnostic apparatus 6012 in response to a first test operation triggered by a user; the diagnostic apparatus 6012 then transmits a first test instruction including one test item to the in-vehicle combination meter to be tested, the first test operation being for instructing to test the one test item. The specific content related to the embodiments of the present application may be referred to the description of the embodiments of the method, which is not repeated for the sake of brevity.

In one possible implementation, the host computer 6011 is configured to send a test instruction including a plurality of test items to the diagnostic apparatus 6012 in response to a second test operation triggered by a user; the diagnostic apparatus 6012 further sends a second test instruction including a plurality of test items to the vehicle-mounted combination meter to be tested, where the second test operation is used to instruct to test the plurality of test items. The specific content related to the embodiments of the present application may be referred to the description of the embodiments of the method, which is not repeated for the sake of brevity.

In one possible implementation, the host computer 6011 is configured to determine test data and standard data of the test item. Specifically, if the test data of the test item is matched with the standard data, obtaining a qualified test result of the test item; if the test data of the test item is not matched with the standard data, a disqualified test result of the test item is obtained.

In one possible implementation, the test apparatus further comprises a communications board. Specifically, referring to fig. 7, a schematic structural diagram of another test apparatus according to an embodiment of the present application is provided. As shown in fig. 7, the test apparatus further includes a communication board. The diagnostic instrument is used for being electrically connected with the vehicle-mounted combination instrument to be tested through the communication board.

In one possible implementation, the communication board includes an over-current protection circuit, where the over-current protection circuit is configured to over-current protect the diagnostic device. It can be understood that by correspondingly adjusting the communication board, the current flowing into the diagnostic apparatus can be split, and the overcurrent protection of the diagnostic apparatus can be realized.

In one possible implementation, the communication board includes an impedance matching circuit, where the impedance matching circuit is configured to perform impedance matching on the vehicle combination meter. It can be understood that the input resistance of the vehicle-mounted combination instrument can be adjusted by correspondingly adjusting the communication board, so that the impedance matching of the vehicle-mounted combination instrument is realized.

In order to facilitate understanding, the embodiment of the application provides a schematic structural diagram of a communication board, and fig. 8 is taken into account to provide a schematic structural diagram of a communication board according to the embodiment of the application. As shown, the diagnostic instrument communication interface 801, the vehicle-mounted combination instrument communication interface 802, the resistor R1, the resistor R2, the resistor R3, the resistor R4, the resistor R5, the power supply VDD, the light emitting diode C1, the light emitting diode C2, the light emitting diode C3, the switching unit K1, the switching unit K2, and the switching unit K3 are shown.

The connection relationship of the overcurrent protection circuit in the communication board is described in detail below. The positive power supply electrode of the diagnostic instrument communication interface 801 is electrically connected with the positive power supply electrode of the vehicle-mounted combination instrument communication interface 802; the power supply negative electrode of the diagnostic instrument communication interface 801 is electrically connected with the first end of the switch unit K1, and the second end of the switch unit K1 is electrically connected with the power supply negative electrode of the vehicle-mounted combination instrument communication interface 802; the positive electrode of the power supply of the diagnostic instrument communication interface 801 is electrically connected with the positive electrode of the light emitting diode C1 through a resistor R1, and the negative electrode of the light emitting diode C1 is electrically connected with the second end of the switch unit K1; the positive electrode of the power supply of the diagnostic instrument communication interface 801 is electrically connected with the positive electrode of the light emitting diode C2 through a resistor R2, and the negative electrode of the light emitting diode C2 is electrically connected with the second end of the switch unit K2; the positive electrode of the power supply of the diagnostic instrument communication interface 801 is electrically connected with the positive electrode of the light-emitting diode C3 through a resistor R3, and the negative electrode of the light-emitting diode C3 is electrically connected with the second end of the switch unit K3; the positive electrode of the power supply of the diagnostic apparatus communication interface 801 is electrically connected to the positive electrode of the power supply VDD, and the negative electrode of the power supply VDD is electrically connected to the second end of the switching unit K3. It will be appreciated that the schematic diagram of the communication board shown in fig. 8 is merely an exemplary illustration, and those skilled in the art may design other circuits according to actual needs, which is not particularly limited in this application.

Specifically, the current flowing into the diagnostic apparatus is split by connecting three resistors in parallel, namely R1, R2 and R3, and the split current condition is observed by three corresponding light emitting diodes C1, C2 and C3, so that the overcurrent protection of the diagnostic apparatus is realized. It can be understood that when the light emitting intensities of the three light emitting diodes C1, C2 and C3 are all observed to be high, the current flowing into the diagnostic apparatus cannot be split by the splitting circuit at this time, and the switching unit can be turned off at this time to prevent the diagnostic apparatus from being damaged.

Wherein the connection relationship of the impedance matching circuit in the communication board is described in detail below. The CAN positive electrode of the diagnostic instrument communication interface 801 is electrically connected with the CAN positive electrode of the vehicle-mounted combination instrument communication interface 802; the CAN negative electrode of the diagnostic instrument communication interface 801 is electrically connected with the CAN negative electrode of the vehicle-mounted combination instrument communication interface 802; the CAN anode of the diagnostic instrument communication interface 801 is electrically connected with the first end of the switch unit K2 through a resistor R4, and the second end of the switch unit K2 is electrically connected with the CAN cathode of the diagnostic instrument communication interface 801; the CAN positive electrode of the diagnostic instrument communication interface 801 is electrically connected with the first end of the switch unit K3 through a resistor R5, and the second end of the switch unit K3 is electrically connected with the CAN negative electrode of the diagnostic instrument communication interface 801. It will be appreciated that the schematic diagram of the communication board shown in fig. 8 is merely an exemplary illustration, and those skilled in the art may design other circuits according to actual needs, which is not particularly limited in this application.

Specifically, by connecting two resistors, namely, R4 and R5, and corresponding switch units K2 and K3 in parallel, impedance matching of the vehicle-mounted combination meter is achieved. It can be understood that the impedance matching of the vehicle-mounted combination instrument is realized by controlling the switch module to connect the resistor R4 and/or R5 in parallel to the vehicle-mounted combination instrument.

In one possible implementation, the resistors R1-R5 may be 120Ω. Of course, those skilled in the art can design the resistances of the resistors R1 to R5 to other values according to actual needs, and the present application is not limited thereto.

Corresponding to the embodiment of the method, the application also provides test equipment. Referring to fig. 9, a schematic structural diagram of another test apparatus provided in an embodiment of the present invention, the test apparatus 900 may include: processor 901, memory 902, and communication unit 903. The components may communicate via one or more buses, and those skilled in the art will appreciate that the configuration of the test device shown in the figures is not limiting of embodiments of the invention, and that it may be a bus-like configuration, a star-like configuration, or may include more or fewer components than shown, or may combine some components, or a different arrangement of components.

Wherein, the communication unit 903 is configured to establish a communication channel, so that the test device may communicate with other devices. Receiving user data sent by other devices or sending user data to other devices.

The processor 901, which is a control center of the test device, connects various parts of the entire test device using various interfaces and lines, performs various functions of the test device and/or processes data by running or executing software programs, instructions, and/or modules stored in the memory 902, and invoking data stored in the memory. The processor may be comprised of integrated circuits (integrated circuit, ICs), such as a single packaged IC, or may be comprised of packaged ICs that connect multiple identical or different functions. For example, the processor 901 may include only a central processing unit (central processing unit, CPU). In the embodiment of the invention, the CPU can be a single operation core or can comprise multiple operation cores.

The memory 902, for storing instructions for execution by the processor 901, the memory 902 may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

The execution of the instructions in memory 902, when executed by processor 901, enables test apparatus 900 to perform some or all of the steps of the embodiment illustrated in fig. 1.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in the embodiments disclosed herein can be implemented as a combination of electronic hardware, computer software, and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In several embodiments provided herein, any of the functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The same or similar parts between the various embodiments in this specification are referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and reference should be made to the description in the method embodiment for relevant points.

Claims (11)

1. The test method of the vehicle-mounted combination instrument is characterized by comprising the following steps of:

transmitting a test instruction containing a test item to a vehicle-mounted combination instrument to be tested, wherein the test instruction is used for testing the test item of the vehicle-mounted combination instrument to obtain test data of the test item;

receiving test data of the test items sent by the vehicle-mounted combination instrument;

and comparing the test data of the test item with standard data to obtain a test result of the test item.

2. The method for testing the vehicle-mounted combination meter according to claim 1, wherein the sending the test instruction including the test item to the vehicle-mounted combination meter to be tested includes:

and responding to a test operation triggered by a user, and sending a test instruction containing a test item to the vehicle-mounted combination instrument to be tested, wherein the test operation is used for indicating to test the test item.

3. The method for testing the vehicle-mounted combination meter according to claim 2, wherein the sending, in response to the test operation triggered by the user, the test instruction including the test item to the vehicle-mounted combination meter to be tested includes:

and responding to a first test operation triggered by a user, and sending a first test instruction containing one test item to the vehicle-mounted combination instrument to be tested, wherein the first test operation is used for indicating to test one test item.

4. The method for testing the vehicle-mounted combination meter according to claim 2, wherein the sending, in response to the test operation triggered by the user, the test instruction including the test item to the vehicle-mounted combination meter to be tested includes:

and responding to a second test operation triggered by the user, and sending a second test instruction containing a plurality of test items to the vehicle-mounted combination instrument to be tested, wherein the second test operation is used for indicating to test the plurality of test items.

5. The method for testing the vehicle-mounted combination meter according to claim 1, wherein comparing the test data of the test item with standard data to obtain a test result of the test item comprises:

if the test data of the test item is matched with the standard data, obtaining a qualified test result of the test item;

and if the test data of the test item is not matched with the standard data, obtaining a disqualified test result of the test item.

6. The method for testing an in-vehicle combination meter according to claim 1, wherein the test items include: at least one of a vehicle speed test, a time test, an electric quantity test, a gear test, a cruising test and an indicator lamp test.

7. A test apparatus, comprising: the system comprises an upper computer and a diagnostic instrument, wherein the upper computer is in communication connection with the diagnostic instrument, and the diagnostic instrument is used for being electrically connected with a vehicle-mounted combination instrument to be tested;

the upper computer is used for sending a test instruction containing a test item to the diagnostic instrument;

the diagnostic instrument is used for sending the test instruction to the vehicle-mounted combination instrument, and the test instruction is used for testing the test item of the vehicle-mounted combination instrument to obtain test data of the test item;

the diagnostic instrument is also used for receiving and sending the test data of the test items sent by the vehicle-mounted combination instrument to the upper computer;

the upper computer is also used for comparing the test data of the test item with standard data to obtain a test result of the test item.

8. The test apparatus of claim 7, further comprising:

the communication board, the diagnostic apparatus is used for through the communication board is connected with the on-vehicle combination meter electricity of waiting to test.

9. The test apparatus of claim 8, wherein the test apparatus comprises a plurality of test cells,

the communication board comprises an overcurrent protection circuit, and the overcurrent protection circuit is used for carrying out overcurrent protection on the diagnostic instrument.

10. The test apparatus of claim 8, wherein the test apparatus comprises a plurality of test cells,

the communication board comprises an impedance matching circuit, and the impedance matching circuit is used for carrying out impedance matching on the vehicle-mounted combination instrument.

11. A test apparatus, comprising:

a processor;

a memory;

and a computer program, wherein the computer program is stored in the memory, the computer program comprising instructions that, when executed by the processor, cause the test device to be configured to perform the method of any of claims 1-6.