CN102608993A - Network automation test method, cabinet and test host - Google Patents
Network automation test method, cabinet and test host Download PDFInfo
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Abstract
The invention discloses a network automation test method, a cabinet and a test host. The method includes acquiring relevant information of a motor vehicle to be tested; recording message information for acquiring an ECU (electronic control unit) and test information needed during actuating ECU test; determining the ECU according to the message information and the relevant information and selecting test cases for actuating the test; triggering test, writing the test information into configuration files, and actuating the test cases corresponding to various test items according to the configuration files; and obtaining test results corresponding to the various test items and generating test reports when the test is finished. By the aid of the automatic test process, a repeated process of performing identical and repeated tests for different ECUs and repeatedly analyzing, judging and arranging the different ECUs during manual test can be avoided, and workload of technicians is reduced. Besides, time consumed during the test can be shortened, necessary artificial errors during the manual test are avoided, and accuracy of the test results is further improved.
Description
Technical field
The present invention relates to the automatization testing technique field, in particular, relate to a kind of network automatically method of testing, rack and Test Host.
Background technology
On current motor vehicles; For realizing various controls to motor vehicles; A plurality of electronic control unit (ECU are installed usually; Electronic Control Unit), each ECU then through controller local area network (Controller Area Network, CAN), LIN, FlexRay (In-vehicle networking standard), Most (Media Oriented System Transport; The automobile optical fiber cable) etc. bus communication protocol is by all kinds of communication medias composition In-vehicle networking that links together, to realize collaborative work to each other.For guarantee ECU can be in the CAN network can operate as normal, in the development phase of ECU, car load factory can discharge ECU communication requirement standard, ECU network management requirement standard and gateway route need standard to ECU supplier and retrain ECU.After the ECU exploitation was accomplished, car load factory can carry out strict network test according to a large amount of ECU that certain test specification is produced supplier, comprising bus communication is tested.
At present, the network test of car load factory is main with manual test mainly, and test job comprises: test environment is built, and test execution, test data are preserved, and test result evaluation and test report such as write at step.The process of specifically carrying out manual test is: at first; The technician needs testing apparatuss such as manual operation power supply, oscillograph, the German Vector VN8900/VN7600/CANcaseXL/CANcard of company, bus interferometer CANstress; And the building of the test environment of before each test beginning, being responsible for, comprise equipment connection, configuration, debugging etc.; Secondly, different controllers are carried out identical test operation; At last, work such as test result, arrangement test report are analyzed, judged to the data of by the technician test being obtained.The above-mentioned test process that carries out ECU, the duration of single ECU network test was generally two to three days.
But; Increase along with the ECU number on the motor vehicles; And the concurrent development of many moneys vehicle, manually repeatedly different ECU are carried out identical, repeated test and repeatedly analysis, judgement and finishing processes, make technician's workload be multiplied; And adopt manual test also will inevitably introduce personal error, precision of test result is impacted.
In sum, adopt manual mode of the prior art that each ECU is tested, not only time-consuming, effort is also introduced artificial error easily.
Summary of the invention
In view of this, the invention provides a kind of network automatically method of testing, rack and Test Host, when overcoming in the prior art manual test, time-consuming, the effort that causes and introduce the problem of error easily.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of method of network automatically test comprises:
Obtain the relevant information of motor vehicle to be measured, said relevant information comprises vehicle information, test-types information and test case information at least;
Typing is used to obtain the message information of electronic control unit ECU, and typing required detecting information when carrying out said ECU test;
According to said message information, said vehicle information and said test-types information, confirm said ECU and choose the test case of carrying out test, and list it in test queue as a test item;
Trigger test, said detecting information is write in the configuration file, and carry out the test case of corresponding each test item according to said configuration file;
When EOT, obtain the corresponding test result of each said test item and generate test report.
Preferably, after writing said detecting information in the configuration file, and before the test case according to corresponding each test item of said configuration file execution, also comprise:
Judge whether the required said detecting information of test all writes in the configuration file,, then return and choose this step of test case of carrying out test if not;
If then carry out the test case of corresponding each test item according to said configuration file.
Preferably, after triggering test, write said detecting information in the configuration file before, also comprise:
The initialization of judging testing tool connects whether success, if then carry out the test case of corresponding each test item according to said configuration file;
If not, then prompting link failure finishes this test, returns said vehicle information and the test-types information carried out according to said motor vehicle to be measured, chooses this step of test case of carrying out test.
Preferably, the detailed process of carrying out the test case of corresponding each test item according to said configuration file comprises:
Switching through relay, with and to the order that programmable power supply and network oscillograph send, build the required test environment of test case;
Carry out the test statement in the said test case successively one by one;
When the need fault is injected, call the network failure injecting program;
When being the test procedure relevant, call the network signal test procedure with said network oscillograph;
Obtain test data, and contrast said test data and preset evaluation criteria information;
When the comparing result indifference, confirm said test item through test, return to carry out and build this step of the required test environment of test case, next test item is carried out test;
The test case of corresponding each said test item independently generates the test record file, to preserve said test data.
A kind of Test Host comprises:
The information data module; At least comprise model data storehouse, test-types storehouse, test case data storehouse; Be used for obtaining at automatic query script the relevant information of motor vehicle to be measured, said relevant information comprises vehicle information, test-types information and test case information at least;
The typing module is used for the message information that typing is used to obtain electronic control unit ECU, and typing required detecting information when carrying out said ECU test;
Choose module, be used for, confirm said ECU and choose the test case of carrying out test, and list it in test queue as a test item according to said detecting information, said vehicle information and said test-types information;
Trigger test module, be used for triggering test, said detecting information is write in the configuration file, and carry out the test case of corresponding each test item according to said configuration file;
Test report generation module is used for when EOT, obtains the corresponding test result of each said test item and generates test report.
Preferably, also comprise: test maintaining module and user's maintenance module;
After said information data module is obtained the relevant information of motor vehicle to be tested, jump to said test maintaining module, said relevant information is carried out data maintenance;
Perhaps, after said information data module is obtained the relevant information of motor vehicle to be tested, jump to said user's maintenance module, the user data of motor vehicle to be tested is safeguarded.
Preferably, also comprise:
Being connected between the initialization link block, the test interface that is used for said Test Host and programmable power supply, network oscillograph, external interface circuit; And judge that said Test Host is connected whether success with initialization between said programmable power supply, network oscillograph, the external interface circuit, if then return to carry out and trigger test module; If not, then prompting link failure finishes this test, returns to carry out and chooses module.
Preferably, mainly comprise in the triggering test module:
Construction unit is used for switching and said relay through relay to the order that programmable power supply and network oscillograph send, and builds the required test environment of test case;
Performance element is used for carrying out one by one successively the test statement of said test case, when the need fault is injected, calls the network failure injecting program; When being the test procedure relevant, call the network signal test procedure with said network oscillograph;
The contrast unit is used to obtain test data, and contrasts said test data and preset evaluation criteria information; When the comparing result indifference, confirm that said test item through test, returns the execution construction unit;
Generation unit, the test case that is used for corresponding each said test item independently generates the test record file, to preserve said test data.
A kind of network automatically test cabinet comprises: by the programmable power supply that layering is provided with, and network oscillograph, bus interferometer, the rack that bus test integrated circuit board and test control panel card, touch LCD display screen and aforesaid Test Host constitute;
Said rack top is provided with power control switch, and said power control switch is made up of CS and emergency stop switch;
Said programmable power supply links automobile-use to be measured in the electronic control unit ECU power supply of giving motor vehicle to be measured;
Said network oscillograph is arranged in the said rack after being fixed in the test subrack, in the process that said ECU is tested, is used for the test of bus physical layer;
Said bus test integrated circuit board and test control panel fix behind subrack and are arranged in the said rack, and wherein, said bus test integrated circuit board one end connects said ECU, other end connecting bus data acquisition equipment; The IO output port that is provided with on the said test control panel card links through connector and relay matrix on the said bus test integrated circuit board;
Said Test Host is through the said programmable power supply of gpib interface link control, through the said network oscillograph of Ethernet interface link control, through USB interface link said bus test integrated circuit board of control and test control panel card;
Said touch LCD display screen links with said Test Host, and what be used for showing test process chooses interface and test result.
Preferably, comprising: said bus test integrated circuit board is made up of all kinds of bus peripheral circuits and relay matrix;
Wherein, according to bus protocol, said bus test integrated circuit board comprises: HSC LAN CAN test integrated circuit board, the fault-tolerant CAN test of low speed integrated circuit board, LIN test integrated circuit board, In-vehicle networking standard FlexRay test integrated circuit board or automobile optical fiber cable MOST test integrated circuit board.
Can know via above-mentioned technical scheme, compared with prior art, the invention discloses a kind of network automatically method of testing, rack and Test Host.Through the above-mentioned relevant information of confirming motor vehicle to be measured, perhaps test item just can be tested to motor vehicle to be measured automatically.The present invention adopts the process of above-mentioned automatic test, can avoid in the manual test process repetitive process that different ECU is carried out identical, repeated test and analyzes repeatedly, judges and put in order, has reduced technician's workload; Simultaneously, can also reduce the spent time of test, and the personal error that must introduce when avoiding manual test has further improved precision of test result.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the method flow diagram of the embodiment of the invention one disclosed a kind of network automatically test;
Relate to the particular flow sheet of carrying out test in the method for Fig. 2 for the embodiment of the invention one disclosed network automatically test;
Fig. 3 is the method flow diagram of the embodiment of the invention two disclosed a kind of network automatically tests;
Fig. 4 is the method flow diagram of the embodiment of the invention three disclosed a kind of network automatically tests;
Fig. 5 is the software and hardware architecture figure of the disclosed a kind of Test Host of the embodiment of the invention;
Fig. 6 is the structural drawing of the disclosed a kind of Test Host of the embodiment of the invention;
Fig. 7 is the concrete structure synoptic diagram that triggers test module 104 in the disclosed Test Host of the embodiment of the invention;
Fig. 8 is the disclosed a kind of network automatically test cabinet of the embodiment of the invention.
Embodiment
For quote and know for the purpose of, the explanation of the technical term that hereinafter uses, write a Chinese character in simplified form or abridge and sum up as follows:
ECU:Electronic Control Unit, electronic control unit;
CAN:Controller Area Network, controller local area network;
FlexRay: In-vehicle networking standard;
Most:Media Oriented System Transport, the automobile optical fiber cable.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Can know by background technology; Increase along with the ECU number on the motor vehicles; And the concurrent development of many moneys vehicle, adopt manual mode of the prior art that each different ECU is carried out identical, repeated test and repeatedly analysis, judgement and finishing processes, make technician's workload be multiplied; And adopt manual test also will inevitably introduce personal error, precision of test result is impacted.
Therefore, following examples of the present invention disclose a kind of method, rack and Test Host of network automatically test.Its ultimate principle is: automatic test rack Network Based carries out the network automatically test of high-efficiency network test, with the purpose that realizes automatically, fast and accurately ECU is tested.Detailed process is elaborated through following examples.
Embodiment one
See also accompanying drawing 1, the method flow diagram for the present invention discloses a kind of network automatically test mainly comprises:
Step S101 obtains the relevant information of the current motor vehicle of testing, and said relevant information comprises vehicle information, test-types information and test case information at least.
In step S101; To current motor vehicle to be tested; Be motor vehicle to be measured, inquire about automobile type information database F6 (as shown in Figure 5) automatically, obtain the vehicle information that is stored among this vehicle information database F6 (as shown in Figure 5); Test-types information, the information that test specification information and test case information or the like are relevant with motor vehicle to be tested.
Need to prove; Operation interface in each implementation of the present invention; And the corresponding execution information of obtaining later also can show on the display interface of carrying out test, so that the technician is to the operation of test process, and timely checking detecting information.
Step S102, typing is used to obtain the message information of electronic control unit ECU, and typing required detecting information when carrying out said ECU test.
After in confirming execution in step S101, having obtained the relevant information of motor vehicle to be measured, execution in step S102, typing detecting information and obtain the message information of the required transmission of ECU in the motor vehicle to be measured.
Wherein, detecting information comprises the said network segment of ECU, ECU exploitation version and ECU title.The detecting information of typing is mainly used in the test file that need move when test case data storehouse F2 (as shown in Figure 5) confirm to carry out test, and the message information that need send of the ECU in this motor vehicle to be measured of typing among the inquiry CANdb communications database F3 (as shown in Figure 5).
Step S103 according to the said vehicle information and the test-types information of said message information, said motor vehicle to be measured, confirms said ECU and chooses the test case of carrying out test, and list it in test queue as a test item.
During execution in step S103; All test case information all is stored in the test case data storehouse of vehicle information database F6 (as shown in Figure 5); Obtain and be shown in vehicle information and test-types information on the display interface through execution in step S101, the title of choosing the test case of corresponding execution test is shown on the display interface.
Concrete; When execution in step S103; To the title of enumerating each test case on display interface,, from above-mentioned each test case of enumerating on display interface, choose current motor vehicle to be measured and need carry out test case according to the vehicle information and the test-types of said motor vehicle to be measured; And the test case that will choose lists in the test queue as test item, and shows.
Step S104 triggers test, said detecting information is write in the configuration file, and carry out the test case of corresponding each test item according to said configuration file.
After execution in step S103 confirmed the test item of required execution, execution in step S104 triggered test, said detecting information is write use when configuration file (* .ini form) supplies the test case library operation.Concrete corresponding software interface, can also trigger " beginning test " button on the display interface by the technician after, trigger the test that begins to carry out a new round.And in the process of execution in step 104, confirm the test case that needs are carried out according to profile information, and the result that test obtains is evaluated according to evaluation criteria information by test case library F2 (as shown in Figure 5).
Step S105 carries out test, and judges whether the test case to each test item finishes, if, execution in step S106 then; If, then do not continue to carry out test.
Step S106 obtains the corresponding test result of each said test item and generates test report.
Generate in the process of test report at execution in step S106, can the test result of obtaining be write in the test report, also can write in the test report successively according to technician's setting according to the type of test result.
Above-mentioned need to prove, to the step S104 shown in the execution accompanying drawing 1, the process of concrete execution test is as shown in Figure 2, specifically may further comprise the steps:
Step S201, the switching through relay, with and to the order that programmable power supply and network oscillograph send, build the required test environment of test case.
Step S202 carries out the test statement in the said test case successively one by one, when the need fault is injected, calls the network failure injecting program; When being the test procedure relevant, call the network signal test procedure with said network oscillograph.
In step S202, when fault is injected if desired, then call network failure injecting program F4 (as shown in Figure 5), if when Pretesting relevant with the network oscillograph, then call network signal test procedure F5 (as shown in Figure 5).
Step S203 obtains test data, and contrasts said test data and preset evaluation criteria information, if during indifference, and execution in step S204; If when variant, then finish this test, carry out test next time then.
Step S204 confirms said test item through test, returns execution in step S201 next test item is carried out test.
Step S205, at the test item to above-mentioned completion, the test case of corresponding each said test item independently generates the test record file, to preserve said test data.
The test process that above-mentioned steps S201～step S205 carries out each test item that need carry out of choosing successively specifically carries out in test case library F2 (as shown in Figure 5).
In simple terms, the present invention's relevant information through above-mentioned automatic inquiry motor vehicle to be measured at first; Secondly, confirm to test the back typing carry out test required obtain electronic control unit ECU the time message information, and the detecting information of carrying out said ECU test; Then, choose the test case of carrying out test, and it is listed in the test queue as a test item according to the relevant information that inquires automatically; Then, trigger test again, carry out the test case of corresponding each test item; At last, behind EOT, obtain the corresponding test result of each said test item and generate corresponding test report.
In the disclosed said process of the present invention, as long as confirm the relevant information of motor vehicle to be measured, perhaps test item just can be tested to motor vehicle to be measured automatically.Adopt the process of above-mentioned automatic test, can avoid in the manual test process repetitive process that different ECU is carried out identical, repeated test and analyzes repeatedly, judges and put in order, reduced technician's workload; Simultaneously, can also reduce the spent time of test, and the personal error that must introduce when avoiding manual test has further improved precision of test result.
Embodiment two
On the invention described above embodiment one disclosed basis, the present invention discloses a kind of network automatically method of testing more specifically, and is as shown in Figure 3, mainly may further comprise the steps:
Step S301 obtains the relevant information of the current motor vehicle of testing, and said relevant information comprises vehicle information, test-types information and test case information at least.
Step S302, typing is used to obtain the message information of electronic control unit ECU, and the detecting information of said ECU test is carried out in typing.
Step S303 according to the said vehicle information and the test-types information of said motor vehicle to be measured, chooses the test case of carrying out test, and lists it in test queue as a test item.
Step S304 triggers test, and each testing tool is carried out the initialization connection.
Step S305, the initialization of judging testing tool connects whether success, if, execution in step S306 then; If deny, then execution in step S307.
After execution in step S304 triggered test, because the automatic testing process of testing, the testing tool that is carried in the hardware system was accomplished automatically.Therefore, judging before the test that through execution in step S305 executive software part is connected whether success or establishment with initialization between each testing tool.Under the condition of confirming successfully or setting up, followingly will test use when writing configuration file (* .ini form) and supply the test case library operation carrying out with information.
In step S304, carry out mainly comprising of initialization connection:, in this embodiment of the invention, adopt gpib interface communication with being connected of programmable power supply; Be connected with network is oscillographic, in this embodiment of the invention, adopt Ethernet interface communication; With being connected of external interface circuit, in this embodiment of the invention, adopt serial communication.
Step S306 writes said detecting information in the configuration file.
In the process of execution in step S306, except writing detecting information in the configuration file, also comprise in the present embodiment, test case is selected information, preset evaluation criteria information, failure code information and routing iinformation write configuration file.
Step S307, prompting link failure finishes this test, returns execution in step S303.
In the process of execution in step S305, if judge the initialization connection failure of above-mentioned arbitrary testing tool, then point out failure information, and stop this test.Wherein, concrete prompting can show connection failure information through display interface, perhaps adopts the audio of alarm sound or prompting failure to point out.
Step S308 judges whether the required said detecting information of test all writes in the configuration file, if not, then return execution in step S303; If, execution in step S309 then.
Step S309 is according to the test case of corresponding each test item of said configuration file execution.
The process of the test case of corresponding each test item of its concrete execution is also as shown in Figure 2 in this step S309, repeats no more here.
Step S310 judges whether the test case to each test item finishes, if, execution in step S311 then; If, then do not continue to carry out test.
Step S311 obtains the corresponding test result of each said test item and generates test report.
Be directed against the concrete record in the test process through above-mentioned this embodiment; Adopt the above-mentioned more detailed description process of test automatically; Can avoid in the manual test process repetitive process that different ECU is carried out identical, repeated test and analyzes repeatedly, judges and put in order, reduce technician's workload; Simultaneously, can also reduce the spent time of test, and the personal error that must introduce when avoiding manual test has further improved precision of test result.
Embodiment three
On the invention described above embodiment one or embodiment two disclosed bases, the present invention discloses a kind of network automatically method of testing more specifically, and is as shown in Figure 4, mainly may further comprise the steps:
Step S401 inquires about automatically, obtains the relevant information of the current motor vehicle of testing, and said relevant information comprises vehicle information, test-types information and test case information at least.
Step S402 chooses execution module.
In the process of execution in step S402, specifically to the execution module on the display interface, when selecting test module, carry out above-mentioned step S101 shown in Figure 1～step S106, perhaps carry out the step S301 shown in above-mentioned Fig. 2～step S311.
When selecting to carry out the test maintaining module, then execution in step S403～step S415 carries out data maintenance to the relevant information of each motor vehicle to be measured.
When select carrying out user's maintenance module, execution in step S417 then.
Step S403 to said motor vehicle to be measured, judges whether to carry out vehicle management, if, execution in step S404 then; If deny, then execution in step S405.
Step S404 carries out input, the modification of information and/or the deletion of information of vehicle information.
Step S405 judges whether to carry out test specification management, if, execution in step S406 then; If deny, then execution in step S407.
Step S406 carries out input, the modification of information and/or the deletion of information of test specification information.
Step S407 judges whether to carry out the test data library management, if, execution in step S408 then; If deny, then execution in step S409.
Step S408 carries out input, the modification of information and/or the deletion of information of test data library information.
Step S409 judges whether to carry out test parameter management, if, execution in step S410 then; If deny, then execution in step S411.
Step S410 carries out input, the modification of information and/or the deletion of information of test parameter information.
Step S411 judges whether implementation of test cases management, if, execution in step S412 then; If deny, then execution in step S413.
Step S412, the deletion of the input of implementation of test cases information, the modification of information and/or information.
Step S413 judges whether to carry out DTC management, if, execution in step S414 then; If deny, then execution in step S415.
Step S414 carries out input, the modification of information and/or the deletion of information of DTC information.
Step S415 judges whether to carry out the gateway routing management, if, execution in step S416 then; If, then do not return execution in step S403, step S405, step S407, step S409, step S411 or step S413.
Step S416 carries out the maintenance of gateway routing iinformation.
Step S417 safeguards the user data of motor vehicle to be measured.This concrete information is stored in the information database, in the process of safeguarding, mainly comprises the input to user profile, the modification of information and the deletion of information.
To the disclosed network automatically method of testing of this embodiment of the invention described above, handle test process to ECU, also comprised the test maintaining of the motor vehicle to be measured tested and the maintenance of user profile.Realizing testing automatically in the process of ECU; Also realize to realize to the test maintaining of motor vehicle to be measured and the maintenance of user profile; Compared to manual test of the prior art; Embodied its diversified function more, realization further is to test process, and the management of test relevant information.
Describe the method for network automatically test among the disclosed embodiment of the invention described above in detail; Can adopt the device of various ways to realize for method of the present invention; Therefore the invention also discloses a kind of Test Host that is used for the network automatically test, provide concrete embodiment below and be elaborated.
As shown in Figure 5; Software and hardware architecture figure for the disclosed a kind of Test Host of the embodiment of the invention mainly comprises: pc control procedure module F1, test case library F2, CANdb communications database F3, network failure injecting program F4, network signal test procedure F5, information database F6 and hardware system F7.
As shown in Figure 6, the structural drawing for the disclosed a kind of Test Host of the embodiment of the invention mainly comprises: information data module 101, typing module 102 is chosen module 103, is triggered test module 104 and test report generation module 105.
Wherein, information data module 101 is corresponding to the information database F6 among Fig. 5.At least comprise model data storehouse 1011, test-types storehouse 1012, test case data storehouse 1013 in this information data module 101.
This information data module 101 is mainly used in and is inquiring about in the process of automobile type information database F6 (as shown in Figure 5) automatically, obtains the relevant information of motor vehicle to be measured, and said relevant information comprises vehicle information, test-types information and test case information at least.
The detecting information of typing is mainly used in typing module 102; The test file that test case data storehouse F2 in the corresponding diagram 5 need move when confirm carrying out test, and the message information that need send of the ECU in this motor vehicle to be measured of typing among the CANdb communications database F3 shown in the query graph 5.
Choose module 103; Be mainly used in said vehicle information and test-types information according to the said motor vehicle to be measured that from information data module 101, obtains; And from typing module 102, obtain said message information; Confirm said ECU and choose the test case of carrying out test, and list it in test queue as a test item.
In choosing module 103, its all test case information is all corresponding to be stored in the test case data storehouse 1013 of the vehicle information database F6 shown in Fig. 5.
In triggering the test module 104 concrete processes of carrying out, confirm the test case that needs are carried out by the test case library F2 shown in Fig. 5 according to profile information, and the result that test obtains is evaluated according to evaluation criteria information.
Test report generation module 105 is used for when EOT, obtains the corresponding test result of each said test item and generates test report.
In carrying out test report generation module 105, the process that the generation test comprises can write the test result of obtaining in the test report according to the type of test result, also can write in the test report successively according to technician's setting.
Need to prove, in triggering test module 104, mainly comprise construction unit as shown in Figure 7 1041, performance element 1042, contrast unit 1043 and generation unit 1044 at this.
Wherein, construction unit 1041 is used for switching and said relay through relay to the order that programmable power supply and network oscillograph send, and builds the required test environment of test case.
Performance element 1042 is used for carrying out one by one successively the test statement of said test case, when the need fault is injected, calls the network failure injecting program; When being the test procedure relevant, call the network signal test procedure with said network oscillograph.
In operation during performance element 1042, when fault is injected if desired, the network failure injecting program F4 shown in the calling graph 5 then; If it is relevant with the network oscillograph to work as Pretesting, then the network signal test procedure F5 shown in the calling graph 5.
Contrast unit 1043 is used to obtain test data, and contrasts said test data and preset evaluation criteria information; When the comparing result indifference, confirm that said test item through test, returns the execution construction unit.
On the basis of the disclosed Test Host of the invention described above embodiment, also comprise the test maintaining module 106 and user's maintenance module 107 that are connected with information data module 101.After information data module 101 is obtained the relevant information of motor vehicle to be tested, can select according to typing module 102, test maintaining module 106 and user's maintenance module 107.
When selecting typing module 102, then carry out and choose module 103, trigger the automatic test that test module 104 and test report generation module 105 realize the ECU of motor vehicle to be measured successively.
When jumping to this test maintaining module 106, then the relevant information of motor vehicle to be measured is carried out data maintenance.Wherein, mainly comprise vehicle management, test specification management, test data library management, test parameter management, test case management, DTC management and gateway routing management.
When jumping to user's maintenance module 107, the user data of motor vehicle to be tested is carried out maintenance and management.
Management in test maintaining module 106 and the user's maintenance module 107 mainly comprises the input of information, the deletion of information and the modification of information.
On the basis of the disclosed Test Host of the invention described above embodiment,, also specifically be provided with initialization link block (indicating in the drawings) on this Test Host for ease with being connected of other hardware.
Being connected between this initialization link block, the test interface that is used for said Test Host and programmable power supply, network oscillograph, external interface circuit; And judge that said Test Host is connected whether success with initialization between said programmable power supply, network oscillograph, the external interface circuit, if then return to carry out and trigger test module; If not, then prompting link failure finishes this test, returns to carry out and chooses module.
In the disclosed software architecture of the embodiment of the invention, and the concrete implementation of each module can be referring to disclosed method among the embodiment one to embodiment three.The purpose that equally also can realize automatically, fast and accurately ECU tested.In addition, independently initialization link block is set on this Test Host,, can further improves the accuracy of the disclosed Test Host of the present invention in carrying out automatic testing process through independently testing the annexation between this Test Host and the testing tool.
To method and the Test Host of describing the network automatically test among the disclosed embodiment of the invention described above in detail; The invention also discloses a kind of network automatically test cabinet that is provided with above-mentioned Test Host, provide concrete embodiment below and be elaborated.
As shown in Figure 8, for the disclosed network automatically test cabinet of the embodiment of the invention, mainly comprise: programmable power supply 201; Network oscillograph 202; Bus interferometer 203, (wherein, the bus test integrated circuit board is 2041 for bus test integrated circuit board and test control panel card 204; The test control panel card is 2042), the disclosed Test Host 206 of touch LCD display screen 205 and the foregoing description.
As shown in Figure 8, above-mentioned programmable power supply 201, network oscillograph 202; Bus interferometer (not shown), bus test integrated circuit board and test control panel card 203, touch LCD display screen 204 and Test Host 205 layering settings; And an integrated network cabinet, so that unify control.
As shown in Figure 8, be provided with power control switch 206 at the head portion of this rack, this power control switch 206 mainly is made up of CS and emergency stop switch.Wherein, this CS has overcurrent protection function, when current value surpasses maximum current, can cut off the power supply of whole rack automatically; When pressing, emergency stop switch can cut off the power supply of whole rack.
In following one deck programmable power supply 201 is set, it links automobile-use to be measured and supplies power in the ECU that gives motor vehicle to be measured.The supply voltage of this programmable power supply 201 can change between 0～40V.Because the part test case need be adjusted magnitude of voltage rising/decline in the test process, perhaps controls the break-make of power supply, therefore must adopt this programmable power supply 201 control change in voltage in real time.Need to prove that this programmable power supply 201 needs to support gpib interface.
Descend one deck that another independently power supply, stabilized voltage supply 207 then are set again.These stabilized voltage supply 207 output voltage 12V voltages are 2041 power supplies of bus test integrated circuit board.When this stabilized voltage supply 207 links with Test Host 205, after GPIB commentaries on classics USB module, be connected with Test Host 205 through USB interface again, and after the GPIB driving is installed, can realize control.
Descend one deck that touch LCD display screen 204 is set again.This touch LCD display screen 204 links with said Test Host 205, and what be used for showing test process chooses interface and test result.Need to prove, in this rack, also can it is connected with touch LCD display screen 204 directly at this layer embedding desktop computer.
Descend the network oscillograph 202 after the test subrack is fixed in one deck setting again.In the process that said ECU is tested, be used for the test of bus physical layer.Be specially: like bus signals level detecting, rising edge negative edge time test, bit time test etc.This network oscillograph can suitably be selected SF, the higher oscillograph of bandwidth for use, is specially high-precision bus oscillograph.Need to prove that selected oscillograph all wants to provide the Ethernet interface to be used for programmed control, and Ethernet interface promptly is provided.
Descend bus test integrated circuit board and test control panel card 204 after subrack is fixed in one deck setting again, wherein, the bus test integrated circuit board is 2041, and the test control panel card is 2042.
Wherein, said bus test integrated circuit board 2,041 one ends connect said ECU, other end connecting bus data acquisition equipment; This bus data acquisition equipment specifically can be CANcaseXL.
Concrete, this bus test integrated circuit board 2041 is made up of all kinds of bus peripheral circuits and relay matrix.To the different bus test integrated circuit board 2041 of the different designs of bus protocol.For example: high-speed CAN test integrated circuit board, the fault-tolerant CAN test of low speed integrated circuit board, LIN test integrated circuit board, FlexRay test integrated circuit board and MOST test integrated circuit board are to support all kinds of bus tests; Relay matrix then satisfy can realize that resistors match, fault are injected, functions such as the power supply control of ECU power supply/GND and GND, 5V, the output of 12V level signal get final product.
Wherein, Relay matrix with high-speed CAN test integrated circuit board is an example; This high-speed CAN test integrated circuit board resistors match function can be mated 60 Europe or 120 Europe terminal resistances, the fault function of injecting can provide CAN_H to GND or power supply short circuit, CAN_L to GND or power supply short circuit, CAN_H to fault implant operations such as CAN_L short circuit, CAN_H short circuit, CAN_L short circuits.Need to prove that the present invention is not limited in this relay matrix.
The IO output port that is provided with on this test control panel card 2042 links through connector and relay matrix on the said bus test integrated circuit board 2041, can test the relay matrix on the integrated circuit board 2041 by control bus through these IO output ports.
Descend one deck to be specially drawer type again, then be used to place tested controller 208, i.e. ECU on it.
Last one deck is specially drawer type, then is used to place hardware testing equipment on it, and promptly Test Host 205.The testing software of the method for carrying the disclosed network automatically test of the foregoing description is installed in this 205 Test Host.This Test Host 205 is through the said programmable power supply 201 of gpib interface link control, through the said network oscillograph 202 of Ethernet interface link control, through USB interface link said bus test integrated circuit board of control and test control panel card 203.
Unify control in the network cabinet through disclosed a kind of programmable power supply 201, network oscillograph 202, bus interferometer CANstress, bus test integrated circuit board and testing apparatuss such as test control panel card 203, touch LCD display screen 204 and Test Host 205 are integrated in of the invention described above embodiment.The disclosed the foregoing description of the present invention automatic test rack Network Based carries out the network automatically test of high-efficiency network test, with the purpose that realizes automatically, fast and accurately ECU is tested.
In addition, to the structure of above-mentioned network automatically test cabinet, it is following that it builds flow process:
The first step is for the network automatically test cabinet is installed power control switch 206.The network automatically test cabinet is the 220V power supply.Power control switch is placed in the rack top, is made up of CS and emergency stop switch, and CS has overcurrent protection function, when current value surpasses maximum current, can cut off the power supply of whole rack automatically; When pressing, emergency stop switch can cut off the power supply of whole rack.
In second step, network automatically is installed is tested required power supply.In rack, comprise two independently power supplys, form by a stabilized voltage supply 207 and a programmable power supply 201 respectively.Two independently power supply layering settings, but its upper-lower position is not limited in the present invention.
Wherein, stabilized voltage supply 207 output voltage 12V voltages are 2041 power supplies of bus test integrated circuit board.Programmable power supply 201 outputs 0～40V voltage is tested ECU power supply.
In the 3rd step, network oscillograph 202 is installed.Before being installed, network oscillograph 202 needs according to oscillographic sized rack subrack.Network oscillograph 202 is fixed in earlier in the test subrack, will tests subrack again and be positioned over the rack assigned address, be connected with Test Host 205 through the Ethernet netting twine.
The 4th step, by testing requirement polylith to be tested integrated circuit board (mainly referring to bus test integrated circuit board and test control panel card 203) and be fixed in the subrack of customization, each integrated circuit board is by stabilized voltage supply 207 power supplies, supply voltage 12V.Integrated circuit board is controlled by the output of IO numeral, is connected with the IO digital output port through connector.Wherein, IO numeral output control can adopt all kinds of digital output boards to stick into row control.
The 5th step, the setting of Test Host 205.At first, needing in the Test Host 205 that each testing apparatus is installed drives; Secondly, need write a host computer procedure is supervision test software, each hardware testing equipment of the unified control of this software.The test case of core utilizes CAPL Browser environment to carry out program development, and CANoe provides all kinds of routine interfaces, like gpib interface, Ethernet interface, serial communication interface etc.Supervision test software possesses database management function can make the network test rack become the test macro of hardware and software platform, robotization the typing of test relevant information.
In sum:
The present invention carries out the network automatically test that high-efficiency network is tested through method, Test Host and the network automatically test cabinet of the disclosed network automatically test of the foregoing description, with the purpose that realizes automatically, fast and accurately ECU is tested.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part is partly explained referring to method and is got final product.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can be directly with the software modules of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. the method for a network automatically test is characterized in that, comprising:
Obtain the relevant information of motor vehicle to be measured, said relevant information comprises vehicle information, test-types information and test case information at least;
Typing is used to obtain the message information of electronic control unit ECU, and typing required detecting information when carrying out said ECU test;
According to said message information, said vehicle information and said test-types information, confirm said ECU and choose the test case of carrying out test, and list it in test queue as a test item;
Trigger test, said detecting information is write in the configuration file, and carry out the test case of corresponding each test item according to said configuration file;
When EOT, obtain the corresponding test result of each said test item and generate test report.
2. method according to claim 1 is characterized in that, after writing said detecting information in the configuration file, and before the test case according to corresponding each test item of said configuration file execution, also comprises:
Judge whether the required said detecting information of test all writes in the configuration file,, then return and choose this step of test case of carrying out test if not;
If then carry out the test case of corresponding each test item according to said configuration file.
3. method according to claim 1 is characterized in that, after triggering test, write said detecting information in the configuration file before, also comprise:
The initialization of judging testing tool connects whether success, if then carry out the test case of corresponding each test item according to said configuration file;
If not, then prompting link failure finishes this test, returns said vehicle information and the test-types information carried out according to said motor vehicle to be measured, chooses this step of test case of carrying out test.
4. according to any described method in the claim 1～3, it is characterized in that the detailed process of carrying out the test case of corresponding each test item according to said configuration file comprises:
Switching through relay, with and to the order that programmable power supply and network oscillograph send, build the required test environment of test case;
Carry out the test statement in the said test case successively one by one;
When the need fault is injected, call the network failure injecting program;
When being the test procedure relevant, call the network signal test procedure with said network oscillograph;
Obtain test data, and contrast said test data and preset evaluation criteria information;
When the comparing result indifference, confirm said test item through test, return to carry out and build this step of the required test environment of test case, next test item is carried out test;
The test case of corresponding each said test item independently generates the test record file, to preserve said test data.
5. a Test Host is characterized in that, comprising:
The information data module; At least comprise model data storehouse, test-types storehouse, test case data storehouse; Be used for obtaining at automatic query script the relevant information of motor vehicle to be measured, said relevant information comprises vehicle information, test-types information and test case information at least;
The typing module is used for the message information that typing is used to obtain electronic control unit ECU, and typing required detecting information when carrying out said ECU test;
Choose module, be used for, confirm said ECU and choose the test case of carrying out test, and list it in test queue as a test item according to said detecting information, said vehicle information and said test-types information;
Trigger test module, be used for triggering test, said detecting information is write in the configuration file, and carry out the test case of corresponding each test item according to said configuration file;
Test report generation module is used for when EOT, obtains the corresponding test result of each said test item and generates test report.
6. Test Host according to claim 5 is characterized in that, also comprises: test maintaining module and user's maintenance module;
After said information data module is obtained the relevant information of motor vehicle to be tested, jump to said test maintaining module, said relevant information is carried out data maintenance;
Perhaps, after said information data module is obtained the relevant information of motor vehicle to be tested, jump to said user's maintenance module, the user data of motor vehicle to be tested is safeguarded.
7. according to claim 5 or 6 described Test Hosts, it is characterized in that, also comprise:
Being connected between the initialization link block, the test interface that is used for said Test Host and programmable power supply, network oscillograph, external interface circuit; And judge that said Test Host is connected whether success with initialization between said programmable power supply, network oscillograph, the external interface circuit, if then return to carry out and trigger test module; If not, then prompting link failure finishes this test, returns to carry out and chooses module.
8. according to claim 5 or 6 described Test Hosts, it is characterized in that, mainly comprise in the triggering test module:
Construction unit is used for switching and said relay through relay to the order that programmable power supply and network oscillograph send, and builds the required test environment of test case;
Performance element is used for carrying out one by one successively the test statement of said test case, when the need fault is injected, calls the network failure injecting program; When being the test procedure relevant, call the network signal test procedure with said network oscillograph;
The contrast unit is used to obtain test data, and contrasts said test data and preset evaluation criteria information; When the comparing result indifference, confirm that said test item through test, returns the execution construction unit;
Generation unit, the test case that is used for corresponding each said test item independently generates the test record file, to preserve said test data.
9. network automatically test cabinet; It is characterized in that, comprising: by the programmable power supply that layering is provided with, network oscillograph; The bus interferometer, any rack that described Test Host constitutes in bus test integrated circuit board and test control panel card, touch LCD display screen and the claim 5～8;
Said rack top is provided with power control switch, and said power control switch is made up of CS and emergency stop switch;
Said programmable power supply links automobile-use to be measured in the electronic control unit ECU power supply of giving motor vehicle to be measured;
Said network oscillograph is arranged in the said rack after being fixed in the test subrack, in the process that said ECU is tested, is used for the test of bus physical layer;
Said bus test integrated circuit board and test control panel fix behind subrack and are arranged in the said rack, and wherein, said bus test integrated circuit board one end connects said ECU, other end connecting bus data acquisition equipment; The IO output port that is provided with on the said test control panel card links through connector and relay matrix on the said bus test integrated circuit board;
Said Test Host is through the said programmable power supply of gpib interface link control, through the said network oscillograph of Ethernet interface link control, through USB interface link said bus test integrated circuit board of control and test control panel card;
Said touch LCD display screen links with said Test Host, and what be used for showing test process chooses interface and test result.
10. system according to claim 9 is characterized in that, comprising: said bus test integrated circuit board is made up of all kinds of bus peripheral circuits and relay matrix;
Wherein, according to bus protocol, said bus test integrated circuit board comprises: HSC LAN CAN test integrated circuit board, the fault-tolerant CAN test of low speed integrated circuit board, LIN test integrated circuit board, In-vehicle networking standard FlexRay test integrated circuit board or automobile optical fiber cable MOST test integrated circuit board.
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