CN110297144A - Three comprehensive test systems of one kind and method - Google Patents
Three comprehensive test systems of one kind and method Download PDFInfo
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- CN110297144A CN110297144A CN201910664052.1A CN201910664052A CN110297144A CN 110297144 A CN110297144 A CN 110297144A CN 201910664052 A CN201910664052 A CN 201910664052A CN 110297144 A CN110297144 A CN 110297144A
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- 238000012360 testing method Methods 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 title abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 38
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010998 test method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention belongs to auto parts reliability test technical fields, and in particular to three comprehensive test systems of one kind and method.Including three combined test chambers; further include master control borad, master control borad is connect with three combined test chambers, and master control borad also with equipment under test communication connection; the operation that master control borad monitors the data of equipment under test operation conditions in real time, judged and stored, and control three combined test chambers and carry out shutdown operation.The real-time status of equipment under test can not be obtained for solving three previous combined test chambers and is unable to satisfy the situation of equipment under test holding charging operation；The present invention completes real time monitoring and control action to equipment under test by master control borad, carries out shutdown operation to three combined test chambers in due course according to the operation conditions of equipment under test.
Description
Technical field
The invention belongs to auto parts reliability test technical fields, and in particular to three comprehensive test systems of one kind and side
Method.
Background technique
Auto parts and components in batch configuration before vehicle, reliability test be it is essential, in reliability test most
Common device is three combined test chambers, it may be assumed that temperature, humidity and vibration integrated chamber.Most of three combined test chambers are not
There is the function of directly being communicated with equipment under test, the real-time status of equipment under test can not be also obtained, fully according to set
Blas is tested.It needs to simulate equipment under test normal operation in reliability test, this is just needed in test process
Middle holding equipment under test charging operation.A possibility that there are equipment under test failures during test, such as: to progress charge and discharge
The battery of electric test carries out the case where high temperature Comprehensive Experiment is likely to occur battery explosion.When carrying out this kind of test, if without can
The safeguard measure leaned on, only with testing crew field observation, once accident occurs, will cause to personnel safety and testing equipment can not
The harm estimated.
Authorization Notice No. are as follows: the utility model of CN206960319U, although the invention can be completed to a certain extent to quilt
Measurement equipment carries out humidity, temperature and vibration and is tested, but cannot monitor constantly the state of equipment under test, and equally exist
Security risk when equipment live operates normally.
Summary of the invention
The technical problem to be solved in the present invention is that overcome the deficiencies of the prior art and provide a kind of three comprehensive test systems and
Method, for solving the problems, such as can not to obtain the real-time status of equipment under test.
The technical scheme to solve the above technical problems is that a kind of three comprehensive test systems, including three comprehensive examinations
Tryoff further includes master control borad, and the master control borad is connect with three combined test chamber, and the master control borad is also logical with equipment under test
News connection, the operation that the master control borad monitors the data of equipment under test operation conditions in real time, judged and stored, and control
Three combined test chamber carries out shutdown operation, and the master control borad includes microprocessor and connects with the microprocessor
Communication unit, SD card storage unit, switch amount output unit and triggering key, the communication unit are tried with three synthesis respectively
Tryoff is connected with equipment under test, and for the transmission of communication signal, the triggering key is stored in micro- place for controlling to read
Manage the real-time test period in device.
Further, the communication unit includes CAN communication unit, and the CAN communication unit is connect with equipment under test, is used
In the operation data of real-time Transmission and the reception equipment under test.
Further, the communication unit further includes Modbus communication unit, the Modbus communication unit and described three
Combined test chamber connection, for feeding back stopping signal to three combined test chamber.
Further, the switch amount output unit is connect with three combined test chamber, comprehensive for controlling described three
Shutdown operation is realized in chamber.
Further, the microprocessor includes EEPROM, and the EEPROM is for storing real-time test period.
Based on a kind of above-mentioned three comprehensive test system, the invention also discloses a kind of three comprehensive testing methods, including it is following
Step:
Step 1: the master control borad powers on the baud rate of rear Auto-Sensing CAN bus, while matching correct baud rate,
And built-in timer initiation；
Step 2: the blank storage location in the SD card, and assignment flag bit are read；
Step 3: judging whether the key is pressed, and the time in EEPROM is read if pressing as current test
Initial time, and enter step 5, otherwise enter step four；
Step 4: judging whether power-on time reaches 1min, initializes and enters step when the secondary tester if reaching
Five, it otherwise enters step three and is looped to determine；
Step 5: when carrying out tester, at interval of 1s by newest timing storage covering to EEPROM, and equipment under test is received
Operation；
Step 6: receiving the running state data of equipment under test, and carries out judging whether there is abnormal conditions, will be different if having
Regular data and current test time store to SD card, and enter step 7, and otherwise return step five is looped to determine；
Step 7: judge whether otherwise generating severely subnormal situation enters step five if then entering step eight；
Step 8: master control borad feeds back to three combined test chambers by Modbus communication unit or switch amount output unit, control
It makes three combined test chambers and carries out shutdown operation.
The beneficial effects of the present invention are:
1, it realizes that equipment under test is connect with master control borad by CAN communication, transmits the operation data of equipment under test, it then can be with
It is judged automatically according to the running state data that equipment under test is issued and feeds back three combined test chamber halt instructions；
2, equipment under test can simulate normal operating conditions, keep charging operation, while the monitoring of master control borad moment is tested and sets
Standby state is not in abnormal dangerous situation when guaranteeing charging operation, while can also measure the valid data of normal operation；
3, master control borad is capable of the baud rate of Auto-Sensing CAN communication, for different equipment under tests without resetting, i.e.,
Achievable communication connection；
4, the EEPROM in master control borad can be recorded constantly refreshes the test run time, and the data after power-off in EEPROM are not
It loses, continues test after interrupting for test and time data are provided；
5, the time and data that equipment under test is operating abnormally during testing are recorded and is stored to SD card, to analyze comprehensively
Equipment under test provides data basis.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is structural block diagram described in the specific embodiment of the invention；
Fig. 2 is control flow chart described in the specific embodiment of the invention；
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
As shown in Figure 1, a kind of three comprehensive test system provided by the present invention, including three combined test chambers, three synthesis
Chamber is identical to test condition provided by temperature, humidity and vibration as three current combined test chambers, additionally includes master
Plate is controlled, master control borad is connect with three combined test chambers, primarily serves the effect that monitoring is coordinated and controlled, wherein three combined test chambers
For actuating station, has and realize stopping function；And master control borad, also with equipment under test communication connection, equipment under test is the source of data,
The operation that master control borad monitors the data of equipment under test operation conditions in real time, judged and stored, and transported according to equipment under test
The data of row situation are analyzed and determined whether need to carry out shutdown operation to three combined test chambers.
Further, master control borad includes microprocessor and the communication unit connected with microprocessor, SD card storage list
Member, switch amount output unit and triggering key, microprocessor use the single-chip microcontroller of STM32F103 series, wherein communication unit packet
The CAN communication unit and Modbus communication unit of model TJA1050 are included, CAN communication unit is connect with equipment under test, for real
When transmission equipment under test operation data to master control borad, Modbus communication unit is connect with three combined test chambers, be used for three it is comprehensive
It closes chamber and feeds back stopping signal, switch amount output unit is connect with three combined test chambers, real for controlling three combined test chambers
Existing shutdown operation, in actual test equipment under test, using the Modbus communication unit or model of model MAX3485
The switch amount output unit one of which of the 24V of SRD-05VDC-SL-C controls three combined test chambers and realizes shutdown operation, triggering
Key is used to control the real-time test period for reading and being stored in microprocessor.
Wherein, triggering key particular use is that whether moment monitoring triggering key is pressed in 1min after master control borad powers on,
It such as presses, then reads initial time of the newest time as the secondary test being stored in EEPROM, that is, indicate that the secondary test is
Test after continuing last time power-off initializes time of the secondary test if not pressing, i.e., this time test for a new round examination
It tests.
Further, microprocessor includes EEPROM, and for storing real-time test period, EEPROM can be protected EEPROM
The test period power down of card storage is not lost.
Based on a kind of above-mentioned three comprehensive test system, the invention also discloses a kind of three comprehensive testing methods, including it is following
Step:
Step 1: the master control borad powers on the baud rate of rear Auto-Sensing CAN bus, while matching correct baud rate,
And built-in timer initiation；
Step 2: the blank storage location in the SD card, and assignment flag bit are read；
Step 3: judging whether the key is pressed, and the time in EEPROM is read if pressing as current test
Initial time, and enter step 5, otherwise enter step four；
Step 4: judging whether power-on time reaches 1min, initializes and enters step when the secondary tester if reaching
Five, it otherwise enters step three and is looped to determine；
Step 5: when carrying out tester, newest timing storage is covered to EEPROM at interval of 1s；
Step 6: receiving the running state data of equipment under test, and carries out judging whether there is abnormal conditions, will be different if having
Regular data and current test time store to SD card, and enter step 7, and otherwise return step five is looped to determine；
Step 7: judge whether otherwise generating severely subnormal situation enters step five if then entering step eight；
Step 8: master control borad feeds back to three combined test chambers by Modbus communication unit or switch amount output unit, control
It makes three combined test chambers and carries out shutdown operation.
Concrete operating principle before the present embodiment is specifically tested, needs confirming equipment operation with equipment under test manufacturer just
Regular data and abnormal data store data in the microprocessor into master control borad, in master control borad realize data judgement and
Feedback, three combined test chambers need to provide feedback interface or shut down agreement, and wherein equipment under test is the data source of testing experiment,
Master control borad plays coordinative role, the communication data of various equipment under tests is carried out comprehensive descision, by abnormal data and abnormal data
Corresponding time storage is shut down by switch amount output unit and Modbus the communication unit feedback connecting with three combined test chambers
Instruction.
Wherein, three combined test chambers generally provide 24V switch interface or Modbus communication interface, provide in master control borad
Modbus communication unit and 24V switch amount output unit select one way in which to realize master control borad to three according to the actual situation
The shutdown operation of combined test chamber.
Specially realize that equipment under test is connect with master control borad by CAN bus first, by tested voltage, electric current, operation
Then the data information transfers such as state and malfunction are matched to master control borad, the CAN baud rate of master control borad Auto-Sensing equipment under test
It sets current baud rate, after configuration successful, reads the blank memory location of SD card storage unit, avoid covering data.Pass through master
Timer built in control plate judge that master control borad powers on whether 1min internal trigger key is pressed, and specific judgement passes through inquiry or interruption
Mode is realized, if the time data stored in the EEPROM of microprocessor are assigned a value of the initial trial time by key pressing, is indicated
This time test is last time to test the test continued after interruption, if not pressing key pressing, test initial time is initialized,
Indicate that this time test is the test of a new round.After starting timing, at interval of 1s, the time of newest timing is stored to microprocessor
In internal EEPROM, i.e., the time data of a newest frame are only stored every time, this time continues test and provides after interrupting for test
Radix.Master control borad obtains the data of equipment under test, the voltage uploaded according to equipment under test, electric current, fortune by CAN communication unit
The data informations such as row state, malfunction judge whether equipment under test occurs during the test in conjunction with normal data target
It is abnormal, if there is exception, the data such as abnormal data, current test time, test number (TN) are deposited according to the coding rule of formulation
In storage to SD card, if SD card storage has been expired, earliest data content is covered.During the test, by comparing normal assays
Number is it has been found that occur serious, it is necessary to which when the failure of shutdown, master control borad passes through Modbus communication unit and output switch parameter list
Member realizes that the switching of low and high level feeds back to three combined test chambers, and three combined test chambers receive this signal hard stop and stop examination
It tests, avoids failure propagation.
Wherein, SD card is connected with the I/O interface that triggering key passes through microprocessor, while configuring corresponding driver
Complete read-write operation.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of three comprehensive test systems, including three combined test chambers, it is characterised in that: it further include master control borad, the master control borad
It is connect with three combined test chamber, and the master control borad, also with equipment under test communication connection, the master control borad is to equipment under test
The operation that the data of operation conditions are monitored in real time, judged and stored, and control three combined test chamber and carry out shutdown behaviour
Make, the master control borad includes microprocessor and the communication unit connected with the microprocessor, SD card storage unit, switch
Output unit and triggering key are measured, the communication unit is connect with three combined test chamber and equipment under test respectively, for leading to
The transmission of signal is interrogated, the triggering key is used to control the real-time test period for reading and being stored in the microprocessor.
2. a kind of three comprehensive test system according to claim 1, it is characterised in that: the communication unit includes CAN logical
Unit is interrogated, the CAN communication unit is connect with equipment under test, the operation number for real-time Transmission and the reception equipment under test
According to.
3. a kind of three comprehensive test system according to claim 2, it is characterised in that: the communication unit further includes
Modbus communication unit, the Modbus communication unit are connect with three combined test chamber, for three compbined test
Case feeds back stopping signal.
4. a kind of three comprehensive test system according to claim 2, it is characterised in that: the switch amount output unit and institute
The connection of three combined test chambers is stated, realizes shutdown operation for controlling three combined test chamber.
5. a kind of three comprehensive test system according to claim 1, it is characterised in that: the microprocessor includes
EEPROM, the EEPROM are for storing real-time test period.
6. a kind of based on a kind of described in any item test methods of three comprehensive test systems of the claims 1-5, feature
It is: the following steps are included:
Step 1: the master control borad powers on the baud rate of rear Auto-Sensing CAN bus, while matching correct baud rate, and
Built-in timer initiation；
Step 2: the blank storage location in the SD card, and assignment flag bit are read；
Step 3: judging whether the key is pressed, and the time in EEPROM is read if pressing as the initial of current test
Time, and enter step 5, otherwise enter step four；
Step 4: judging whether power-on time reaches 1min, initializes and enter step 5 when the secondary tester if reaching, no
Three are then entered step to be looped to determine；
Step 5: it when carrying out tester, at interval of 1s by newest timing storage covering to EEPROM, and receives and is devices under
Running state data；
Step 6: the running state data being devices under is carried out to judge whether there is abnormal conditions, by abnormal data if having
It stores with the current test time to SD card, and enters step 7, otherwise return step five is looped to determine；
Step 7: judge whether otherwise generating severely subnormal situation enters step five if then entering step eight；
Step 8: master control borad feeds back to three combined test chambers, control three by Modbus communication unit or switch amount output unit
Combined test chamber carries out shutdown operation.
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| CN201910664052.1A CN110297144B (en) | 2019-07-22 | 2019-07-22 | Three-combination test system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910664052.1A CN110297144B (en) | 2019-07-22 | 2019-07-22 | Three-combination test system and method |
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| CN110297144B CN110297144B (en) | 2024-03-08 |
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| CN110297144B (en) | 2024-03-08 |
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