CN111970165A - Automobile instrument Ethernet communication endurance automatic test system and method - Google Patents
Automobile instrument Ethernet communication endurance automatic test system and method Download PDFInfo
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- CN111970165A CN111970165A CN202010748120.5A CN202010748120A CN111970165A CN 111970165 A CN111970165 A CN 111970165A CN 202010748120 A CN202010748120 A CN 202010748120A CN 111970165 A CN111970165 A CN 111970165A
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- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000010998 test method Methods 0.000 claims description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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Abstract
The invention relates to an automatic testing system for Ethernet communication durability of an automobile instrument, which comprises a computer end, an analog end, a detection end, an input/output end and a tested end, wherein the analog end, the detection end and the input/output end are respectively and electrically connected with the computer end, the tested end is electrically connected with the analog end, and the tested end is arranged right opposite to the detection end. The computer end comprises a PC unit for controlling the work of each unit of the whole system. The analog end comprises a central control unit electrically connected with the PC unit, a plug-in unit electrically connected with the central control unit, a power supply unit electrically connected with the PC unit, and a communication unit electrically connected with the PC unit. The detection end comprises an acquisition unit electrically connected with the PC unit and used for acquiring the image information of the detected end. The input/output end comprises an input unit which is electrically connected with the PC unit and is used for setting parameters, and an output unit which is electrically connected with the PC unit and is used for outputting the test result. Compared with manual testing, the scheme is more accurate, can reach the ms level, can be repeatedly executed, can continuously run for 7 x 24 hours, and is higher in working efficiency.
Description
Technical Field
The invention relates to the technical field of automotive electronics, in particular to an automatic testing system and method for automobile instrument Ethernet communication durability.
Background
In the process of testing the Ethernet underlying communication of the automobile instrument, the central control host and the automobile instrument need to be communicated after being connected through the Ethernet connecting line. The existing endurance verification is to judge whether the communication is normal or not by manually plugging and unplugging an Ethernet cable and observing the display of an instrument.
The existing testing method has the following technical defects:
(1) manual plugging and unplugging operations are complicated, and multi-equipment operation is involved;
(2) the operation time and the speed are not controllable;
(3) the repetitive actions are many, and the working efficiency is low;
(4) the test period is long, and the labor input is large;
(5) there is a false judgment of communication failure caused by incomplete insertion.
Aiming at the problems, the invention provides an automatic testing system and method for the communication durability of the Ethernet of the automobile instrument.
Disclosure of Invention
The invention aims to solve the problems that the existing testing method is complicated in manual plugging and unplugging operation, relates to multi-equipment operation, and has uncontrollable operation time and speed, more repetitive actions, low working efficiency, long testing period, large manpower input and communication failure misjudgment caused by incomplete plugging. The concrete solution is as follows:
an automobile instrument Ethernet communication endurance automatic test system comprises a computer end, an analog end, a detection end and an input/output end, wherein the analog end, the detection end and the input/output end are respectively electrically connected with the computer end, the automobile instrument Ethernet communication endurance automatic test system further comprises a tested end which is electrically connected with the analog end, and the tested end is arranged right opposite to the detection end.
The computer end comprises a PC unit for controlling the work of each unit of the whole system.
The analog end comprises a central control unit electrically connected with the PC unit, a plug-in unit electrically connected with the central control unit, a power supply unit electrically connected with the PC unit, and a communication unit electrically connected with the PC unit.
The detection end comprises an acquisition unit electrically connected with the PC unit and used for acquiring the image information of the detected end.
The input/output end comprises an input unit which is electrically connected with the PC unit and is used for setting parameters, and an output unit which is electrically connected with the PC unit and is used for outputting the test result.
The measured end comprises an instrument unit, the instrument unit is respectively electrically connected with the power supply unit, the plugging unit and the communication unit, and the dial straight line of the instrument unit is over against the acquisition port of the acquisition unit.
Further, the PC unit is a PC.
Further, the input unit is a keyboard, the output unit is a display, or the input unit/the output unit is a touch display screen.
Further, the central control unit is an automobile central control host.
Furthermore, the plugging unit is a relay board card formed by a plurality of relays and used for simulating plugging and unplugging operations of the Ethernet cable.
Furthermore, the communication unit is a CAN board card and is used for simulating real vehicle input signals.
Furthermore, the power supply unit is a programmable power supply and is used for simulating the power supply of an actual vehicle.
Furthermore, the instrument unit is an automobile instrument and is used for displaying automobile parameters and multimedia information.
Furthermore, the acquisition unit is an industrial camera and is used for acquiring automobile parameters and multimedia information displayed by an automobile instrument.
An automobile instrument Ethernet communication endurance automatic test method based on the automobile instrument Ethernet communication endurance automatic test system is carried out according to the following steps:
step 1, electrifying a system and initializing;
step 2, setting parameters on an input interface according to the requirements of a tested product;
step 3, selecting a standard template setting key, simulating real vehicle signal input, repeatedly shooting a plurality of instrument pictures by a camera under the condition that the communication between the automobile instrument and the central control host is normal, and storing the instrument pictures as a standard template for subsequent judgment after the accuracy meets the requirement;
step 4, combining various working conditions, presetting related programs by the system, and controlling the relay board card to simulate the operation of plugging and unplugging the Ethernet cable for a long time;
step 5, carrying out multiple operations of pulling out and plugging in the Ethernet cable for multiple times through different switch arrangement and combination sequences of a plurality of relays on the relay board card;
step 6, after the Ethernet cable is plugged and unplugged once, the normal connection is recovered;
step 7, after tens of seconds, the camera detects and shoots a display state picture of the automobile instrument for one time, and the picture is sent to the PC for judgment;
step 9, suspending system test, keeping an error state, informing an operator through a flash lamp or a buzzer, and removing a fault according to error prompt information or a fault code in time;
the parameter setting in the step 2 comprises the model of the tested instrument, the instrument ID, the test time period, the Ethernet protocol parameter, the automobile model and the automobile ID;
the accuracy in the step 3 is more than 85%;
the time range of the long time in the step 4 is 1 day 24 hours to 7 days 24 hours;
and the input interface and the output interface are respectively displayed on the touch display screen.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the problems that the existing testing method has complicated manual plugging and unplugging operation, relates to multi-equipment operation, has uncontrollable operation time and speed, more repetitive actions, low working efficiency, long testing period and large manpower input, and has communication failure misjudgment caused by incomplete plugging. Compared with manual testing, the scheme is more accurate, can reach the ms level, can be repeatedly executed, can continuously run for 7 x 24 hours, and is higher in working efficiency. The durable system is wide in application range, not only limited to specific instrument products, but also suitable for any Ethernet communication instrument durable automatic test. The scheme is actually verified, manual plugging and unplugging of the Ethernet cable can be completely replaced, and Ethernet communication can be fully verified under various working conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a block diagram of an automatic testing system for durability of Ethernet communication of a vehicle instrument according to the present invention;
FIG. 2 is a step diagram of an automatic testing method for durability of Ethernet communication of an automobile instrument according to the present invention.
Description of reference numerals:
10-computer terminal, 11-PC 20-analog terminal, 21-central control host, 22-relay board card, 23-CAN board card, 24-programmable power supply, 30-detection terminal, 31-camera, 40-input/output terminal, 41-touch display screen, 50-detected terminal and 51-instrument.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The English abbreviations of the present invention are as follows:
PC is the English abbreviation of personal computer, meaning of personal computer. CAN is English abbreviation of Controller Area Network, which is short for Controller Area Network. ID is an abbreviation of english IDentity, meaning of ID number.
As shown in fig. 1, an automatic testing system for testing ethernet communication endurance of an automobile instrument comprises a computer terminal 10, an analog terminal 20, a detection terminal 30, an input/output terminal 40 electrically connected to the computer terminal 10, and a tested terminal 50 electrically connected to the analog terminal 20, wherein the tested terminal 50 is disposed opposite to the detection terminal 30.
The computer terminal 10 includes a PC unit for controlling operations of the units of the entire system.
The analog terminal 20 includes a central control unit electrically connected to the PC unit, a plug unit electrically connected to the central control unit, a power supply unit electrically connected to the PC unit, and a communication unit electrically connected to the PC unit.
The detection terminal 30 includes a collecting unit electrically connected to the PC unit for collecting image information of the terminal 50 to be detected.
The input/output terminal 40 includes an input unit electrically connected to the PC unit for setting parameters, and an output unit electrically connected to the PC unit for outputting test results.
The measured end 50 comprises an instrument unit which is respectively electrically connected with the power supply unit, the plugging unit and the communication unit, and the dial straight line of the instrument unit is just opposite to the acquisition port of the acquisition unit.
Further, the PC unit is a PC 11.
Further, the input unit is a keyboard (not shown), the output unit is a display (not shown), or the input unit/output unit is a touch display 41.
Further, the central control unit is an automobile central control host 21.
Further, the plugging unit is a relay board card 22 composed of a plurality of relays (not shown in the figure, the number of relays can be selected according to the number of specific network cables), and is used for simulating the plugging operation of the ethernet cable.
Further, the communication unit is a CAN board 23 for simulating an input signal of an actual vehicle.
Further, the power supply unit is a programmable power supply 24 for simulating the power supply of the real vehicle.
Further, the meter unit is a car meter 51 for displaying car parameters, multimedia (including radio, music, video, information) information.
Further, the collecting unit is an industrial camera 31, and is configured to collect vehicle parameters (such as speed per hour, mileage, air pressure, oil amount, electric quantity, temperature, and the like) and multimedia information displayed by the vehicle meter 51.
As shown in fig. 2, an automatic testing method for durability of ethernet communication of an automobile instrument based on the automatic testing system for durability of ethernet communication of an automobile instrument is performed according to the following steps:
step S1, the system is powered on and initialized;
step S2, setting parameters according to the requirements of the tested product on an input interface;
step S3, selecting a standard template setting key (a menu key set in the input interface), simulating real vehicle signal input, and under the condition that the communication between the automobile instrument 51 and the central control host 21 is normal, the camera 31 repeatedly takes a plurality of images (high-definition images) of the instrument 51, and stores the images as standard templates for subsequent judgment after the accuracy meets the requirement;
step S4, combining various working conditions, presetting related programs by the system, and controlling the relay board card 22 to simulate the operation of plugging and unplugging the Ethernet cable for a long time;
step S5, through the different switch arrangement and combination sequence of the relays on the relay board card 22, the Ethernet cable plugging and unplugging operation is carried out for a plurality of times;
step S6, restoring normal connection after each Ethernet line plugging operation;
step S7, after several tens of seconds (for example, 10 to 20 seconds), the camera 31 detects and takes a display status picture of the automobile instrument 51, and sends the picture to the PC 11 for judgment;
in step S8, the PC 11 compares the captured image of the automobile instrument with a standard template and analyzes the image to determine whether the image is normal? If the result is normal, S8-1, displaying a normal result on the output interface, and turning to the step S5; if the abnormal result is abnormal, S8-2, displaying the abnormal result on the output interface, and turning to the next step;
step S9, the system test is suspended, the error state is kept, the flash lamp or the buzzer (not shown in the figure) informs the operator, and the fault is eliminated in time according to the error prompt information or the fault code (automatically generated by the system and displayed on the touch display screen 41);
wherein the parameter settings in step S2 include the model of the instrument to be tested, the instrument ID, the test time period, the ethernet protocol parameters, the vehicle model, and the vehicle ID;
the accuracy in step S3 is greater than 85%;
the time range of the long time in the step S4 is 1 day 24 hours to 7 days 24 hours;
the input interface and the output interface are displayed on the touch display screen 41, respectively.
In summary, the technical scheme of the invention has the following beneficial effects:
the invention solves the problems that the existing testing method has complicated manual plugging and unplugging operation, relates to multi-equipment operation, has uncontrollable operation time and speed, more repetitive actions, low working efficiency, long testing period and large manpower input, and has communication failure misjudgment caused by incomplete plugging. Compared with manual testing, the scheme is more accurate, can reach ms (millisecond) level, can be repeatedly executed, and has the advantages of continuous operation for 7 (days) by 24 hours and higher working efficiency. The durable system is wide in application range, not only limited to specific instrument products, but also suitable for any Ethernet communication instrument durable automatic test. The scheme is actually verified, manual plugging and unplugging of the Ethernet cable can be completely replaced, and Ethernet communication can be fully verified under various working conditions.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides a durable automatic test system of motormeter ethernet communication which characterized in that: the device comprises a computer end (10), an analog end (20), a detection end (30) and an input/output end (40), wherein the analog end (20), the detection end (30) and the input/output end are respectively electrically connected with the computer end (10), the device also comprises a detected end (50) which is electrically connected with the analog end (20), and the detected end (50) is arranged right opposite to the detection end (30);
the computer end (10) comprises a PC unit for controlling the work of each unit of the whole system;
the analog terminal (20) comprises a central control unit electrically connected with the PC unit, a plug-pull unit electrically connected with the central control unit, a power supply unit electrically connected with the PC unit, and a communication unit electrically connected with the PC unit;
the detection end (30) comprises an acquisition unit electrically connected with the PC unit and used for acquiring image information of the detected end;
the input/output end (40) comprises an input unit which is electrically connected with the PC unit and is used for setting parameters, and an output unit which is electrically connected with the PC unit and is used for outputting a test result;
the measured end (50) comprises an instrument unit, the instrument unit is respectively electrically connected with the power supply unit, the plugging unit and the communication unit, and the dial straight line of the instrument unit is over against the acquisition port of the acquisition unit.
2. The system according to claim 1, wherein the system comprises: the PC unit is a PC (11).
3. The system according to claim 2, wherein the system comprises: the input unit is a keyboard, the output unit is a display, or the input unit/output unit is a touch display screen (41).
4. The system according to claim 3, wherein the system comprises: the central control unit is an automobile central control host (21).
5. The system according to claim 4, wherein the system comprises: the plugging unit is a relay board card (22) consisting of a plurality of relays and is used for simulating plugging operation of the Ethernet cable.
6. The system of claim 5, wherein the system comprises: the communication unit is a CAN board card (23) and is used for simulating real vehicle input signals.
7. The system according to claim 6, wherein the system comprises: the power supply unit is a programmable power supply (24) and is used for simulating the power supply of an actual vehicle.
8. The system according to claim 7, wherein the system comprises: the instrument unit is an automobile instrument (51) and is used for displaying automobile parameters and multimedia information.
9. The system according to claim 8, wherein the system comprises: the acquisition unit is an industrial camera (31) and is used for acquiring automobile parameters and multimedia information displayed by an automobile instrument (51).
10. An automobile instrument Ethernet communication endurance automatic test method based on the automobile instrument Ethernet communication endurance automatic test system of any one of claims 1 to 9, characterized by comprising the following steps:
step 1, electrifying a system and initializing;
step 2, setting parameters on an input interface according to the requirements of a tested product;
step 3, selecting a standard template setting key, simulating real vehicle signal input, repeatedly shooting a plurality of instrument pictures by a camera under the condition that the communication between the automobile instrument and the central control host is normal, and storing the instrument pictures as a standard template for subsequent judgment after the accuracy meets the requirement;
step 4, combining various working conditions, presetting related programs by the system, and controlling the relay board card to simulate the operation of plugging and unplugging the Ethernet cable for a long time;
step 5, carrying out multiple operations of pulling out and plugging in the Ethernet cable for multiple times through different switch arrangement and combination sequences of a plurality of relays on the relay board card;
step 6, after the Ethernet cable is plugged and unplugged once, the normal connection is recovered;
step 7, after tens of seconds, the camera detects and shoots a display state picture of the automobile instrument for one time, and the picture is sent to the PC for judgment;
step 8, the PC compares and analyzes the shot automobile instrument picture with a standard template, and judges whether the picture is normal? If the result is normal, displaying a normal result on an output interface, and turning to the step 5; if the abnormal result is abnormal, the abnormal result is displayed on an output interface, and the next step is carried out;
step 9, suspending system test, keeping an error state, informing an operator through a flash lamp or a buzzer, and removing a fault according to error prompt information or a fault code in time;
the parameter setting in the step 2 comprises the model of the tested instrument, the instrument ID, the test time period, the Ethernet protocol parameter, the automobile model and the automobile ID;
the accuracy in the step 3 is more than 85%;
the time range of the long time in the step 4 is 1 day 24 hours to 7 days 24 hours;
and the input interface and the output interface are respectively displayed on the touch display screen.
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