CN106407067B - The compatibility automated test method and system of vehicle-mounted USB device - Google Patents
The compatibility automated test method and system of vehicle-mounted USB device Download PDFInfo
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- CN106407067B CN106407067B CN201510445541.XA CN201510445541A CN106407067B CN 106407067 B CN106407067 B CN 106407067B CN 201510445541 A CN201510445541 A CN 201510445541A CN 106407067 B CN106407067 B CN 106407067B
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Abstract
The present invention relates to a kind of compatibility automated test methods of vehicle-mounted USB device, comprising steps of a record file is stored in advance in USB storage to be tested, the hardware information of record file storage USB storage and the file information of USB storage；Vehicle-mounted USB device reads the record file in the USB storage currently tested；Vehicle-mounted USB device is opened and reads the file stored in the USB storage currently tested；The file information that USB device vehicle-mounted when testing is opened and read is compared with the file information in record file, it analyzes and exports vehicle-mounted USB device and be connected as a result, being switched to by the vehicle-mounted USB device of software control with next USB storage to be tested to the compatibility for the USB storage currently tested.The purpose of the present invention is to provide the compatibility automated test methods and system of a kind of vehicle-mounted USB device of compatibility be capable of the fast automatic compatibility for testing multiple USB storages and can test a variety of file formats.
Description
Technical field
The present invention relates to testing field, the especially a kind of compatibility automated test method and system of vehicle-mounted USB device.
Background technique
With the fast development and the improvement of people's living standards of automobile industry, requirement of the people to vehicle entertainment system is got over
Come higher.Due to USB storage have convenient storage, reading speed be fast, connection flexibly, to support a variety of multimedias storages etc. numerous
Advantage is widely applied in mainstream information amusement.USB storage data are read by USB device, realize audio/video
It plays, picture browsing is gradually at functional requirement indispensable in vehicle mounted guidance.However, USB storage style on the market
Numerous, the storage of multi-medium data and reading manner are also diversified in USB storage.Also, the professional standard of USB is not always
In disconnected renolation, the decoding capability of vehicle-mounted USB device is also required to improve in real time, to expand to USB storage on the market
Support range.
The compatibility test method of existing vehicle-mounted USB device usually inserts each USB storage to be tested one by one
Enter in vehicle-mounted USB device, the test file in USB storage is then read by vehicle-mounted USB device, judges the USB storage
It is whether compatible with vehicle-mounted USB device.The different tests in the USB storage and USB storage for testing different brands, different capabilities
When whether file format is compatible with vehicle-mounted USB device, need repeatedly to plug USB storage, inefficiency, frequently
USB interface plug easily causes USB interface to wear, and leads to USB storage or vehicle-mounted USB device poor contact or other problems, and
And the judge subjectivity influence of manual testing is very big, it is understood that there may be tests the situation of inaccuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of compatibility for capableing of the fast automatic multiple USB storages of test and can survey
Try the compatibility automated test method and system of the vehicle-mounted USB device of the compatibility of a variety of file formats.
A kind of compatibility automated test method of vehicle-mounted USB device, comprising the following steps:
1) a record file is stored in advance in USB storage to be tested, the record file storage is described to be tested
USB storage hardware information and the USB storage to be tested the file information, the USB storage to be tested
The file information include the file that USB storage to be tested is stored quantity, file name, file format；
2) the vehicle-mounted USB device reads the record file in the USB storage currently tested, and records and currently test
The hardware information and the file information of USB storage；
3) vehicle-mounted USB device is opened one by one and reads the multiple files stored in the USB storage currently tested, and records
The file information that the vehicle-mounted USB device is read, the multiple file includes text file, picture, music file；
4) the file information in the file information that USB device vehicle-mounted when testing is opened and read and record file carries out pair
Than analysis obtains compatible context of the vehicle-mounted USB device to the USB storage currently tested；
5) it after outputing test result, is switched to by vehicle-mounted USB device described in software control and is deposited with next USB to be tested
Reservoir is connected, and repeats step 3).
Further, if further comprising the steps of: the vehicle-mounted USB device after the step 3) encounters the text that can not be read
Part is then skipped, and next file in the USB storage currently tested is read；It is stored in the USB storage that judgement is currently tested
Whether file, which reads, finishes, and finishes, is thened follow the steps 4) if reading；Otherwise step 3) is repeated.
Further, the fixed name of the record file setting one.
Further, the compatible context includes: the compatible context of the compatible context of USB storage format, file format.
Further, including a vehicle-mounted USB device, USB test circuit, multiple USB storages to be tested and a control
Center processed；The control centre is connected with the vehicle-mounted USB device, for data processing and exports compatibility test result；
The USB test circuit is connected with the vehicle-mounted USB device, for realizing multiple USB storages and institute to be tested
State the switching connection of vehicle-mounted USB device；
The data processing specifically includes:
A record file is stored in advance in USB storage to be tested, the record file stores described to be tested
The file information of the hardware information of USB storage and the USB storage to be tested, the USB storage to be tested
The file information includes quantity, file name, the file format for the file that USB storage to be tested is stored；
The vehicle-mounted USB device reads the record file in the USB storage currently tested, and records and currently test
The hardware information and the file information of USB storage；
It opens one by one and reads the multiple files stored in the USB storage currently tested, and record the vehicle-mounted USB dress
The file information of reading is set, the multiple file includes text file, picture, music file；
The file information in the file information that USB device vehicle-mounted when testing is opened and read and record file carries out pair
Than analysis obtains compatible context of the vehicle-mounted USB device to the USB storage currently tested.
Further, USB test circuit include a MCU control module, a switch module, a USB switching circuit with
An and USB slot；The USB switching circuit includes one or more transistor switching circuits and one or more switching cores
Piece.
Further, the USB slot includes multiple USB interfaces, and the USB interface includes two data port, an electricity
Source anode port and a power cathode port；The transistor switching circuit respectively with the positive pole port of each USB interface
It is connected, for controlling the power supply power supply or disconnection of each USB interface.
Further, the MCU control module controls the switching chip and connect and break with the data port of each USB interface
It opens and the MCU control module controls the switch of the transistor switching circuit.
Further, the control centre is a computer；The computer is equipped with LabView test software.
The compatibility automated test method of vehicle-mounted USB device of the invention has the following advantages that and has compared with prior art
Beneficial effect:
1) switching and test process of the present invention using software control USB storage may be implemented quickly to automate and survey
The compatibility to all kinds of USB storages and the compatibility to Miscellaneous Documents format that test run carries USB device, testing efficiency is high, section
Human-saving material resources.
2) cooperate switching chip to realize the switching of multiple USB slots by transistor switching circuit, it is multiple to be equivalent to realization
The switching of USB storage, circuit is simple, favorable expandability.
3) test result is tracked and recorded by installing LabView test software in computer, it is simultaneous overcomes vehicle-mounted USB device
The subjectivity of capacitive test, improves the reliability of test result, and improves testing efficiency and test range.
Detailed description of the invention
Fig. 1 is the hardware structure diagram of the compatibility automated test macro of the vehicle-mounted USB device of an embodiment.
Fig. 2 is the schematic diagram that USB tests circuit.
Fig. 3 is the schematic diagram of the switching chip of an embodiment.
Specific embodiment
Make below in conjunction with compatibility automated test method of the specific embodiments and drawings to the vehicle-mounted USB device of the present invention
It is described in further detail, embodiments of the present invention are not limited thereto.
The compatibility automated test macro of vehicle-mounted USB device of the invention is for realizing vehicle-mounted USB device to inhomogeneity
The compatibility automated test of the file of the USB storage and different-format of type, specifically, vehicle-mounted USB dress through the invention
The compatibility automated test macro set monitors the file of different types of USB storage and different-format in real time in vehicle-mounted USB
Support situation in device.Vehicle-mounted USB device be usually onboard navigation system or vehicle entertainment system etc. have USB interface and
The onboard system of USB decoding function.USB storage is usually USB flash disk.
As shown in Figure 1, in a preferred embodiment, the compatibility automated test macro of vehicle-mounted USB device of the invention, packet
Include vehicle-mounted USB device, USB test circuit, multiple USB storages to be tested and control centre.Preferably, control centre one
Computer is equipped with LabView test software in computer, for monitoring in real time, data processing and judgement and output compatibility
Test result etc..
Control centre is connected with vehicle-mounted USB device, control centre for record data, data processing and analysis and
Export compatibility test result.Specifically, control centre is communicated with vehicle-mounted USB device by iic bus, and control centre is logical
It crosses LabView software supervision and records the file information and status information that vehicle-mounted USB device is opened and read, and record and analyze
Compatibility test result.Preferably, the content of LabView software records include: the USB storage type currently tested, it is current
The USB that USB storage type, the history that file format classification, the history of file in the USB storage of test are read are read is deposited
The file format classification of file in reservoir.
Vehicle-mounted USB device is connected with USB test circuit, and USB test circuit is for controlling cutting for multiple USB storages
It changes, connect multiple USB storages with vehicle-mounted USB device one by one, vehicle-mounted USB device tests a USB storage every time.Specifically
Ground is connected drawing between vehicle-mounted USB device and USB test circuit by USB data line and iic bus.Wherein USB data line includes
Two data lines, a 5V power supply line and a ground wire, for transmitting USB sound view signal and power supply；Iic bus includes SDA and clock
Line SCK, for transmitting the reading data state of USB storage.
As shown in Fig. 2, testing the schematic diagram of circuit for USB.It includes a MCU control module, a switching molding that USB, which tests circuit,
Block, a USB switching circuit and a USB slot.MCU control module is connected with vehicle-mounted USB device, so that control centre passes through
Vehicle-mounted USB device control USB tests circuit.USB slot includes multiple USB interfaces, can connect multiple USB storages simultaneously.USB
Interface includes two data port D+ and D-, a positive pole port and a power cathode port.Can will own in USB slot
The power cathode port of USB interface is grounded.
USB switching circuit includes a transistor switching circuit and one or more switching chips.Switch chip for real
USB interface in now each pair of USB slot is selectively turned on.Each transistor switching circuit connects with a USB in USB slot
The positive pole port of mouth is connected, for controlling the power supply power supply or disconnection of each USB interface.Preferably, switching chip choosing
With NLAS7242 chip.As shown in figure 3, being each port schematic diagram of NLAS7242 chip.MCU module by I/O port with
The port OE, S of NLAS7242 chip is connected, the port HSD1+ and HSD1- and the USB in USB slot of NLAS7242 chip
The data port D+ of interface is connected with D-, the port HSD2+ and HSD2- and another USB in USB slot of NLAS7242 chip
The data port D+ of interface is connected with D-.As shown in table 1, the low and high level of the port OE, S is controlled by MCU module, i.e., controllably
The port HSD1+ and HSD1- of NLAS7242 chip processed, HSD2+ and HSD2- are switched on and off, to control in USB slot
The switching of USB interface realizes that each USB storage and the switching of vehicle-mounted USB device are connect.It is controlled respectively by MCU module every
The level of one transistor switching circuit exports, to control being connected and disconnected from for each USB interface of USB slot.
Table 1
Therefore, the compatibility automated test macro of vehicle-mounted USB device of the invention only needs to increase NLAS7242 switching
Chip can be increased the quantity of carry USB storage to be tested in USB slot, as long as and utilizing the control of control centre
USB tests MCU module in circuit, and multiple USB storages can be realized and be connected in a manner of switching with vehicle-mounted USB device, firmly
Part circuit is simple, is switched using software control USB, testing reliability not only can be improved, moreover it is possible to greatly improve testing efficiency.
Further, the compatibility automated test macro based on above-mentioned vehicle-mounted USB device, the present invention also provides a kind of vehicles
The compatibility automated test method for carrying USB device, includes the following steps.
Step 1: one being stored in advance in each USB storage to be tested and is set as in the record file of fixed name.
Record file and alternative document can effectively be distinguished by setting fixed name for record file.Preferentially, record file is one
TXT text file.In the present embodiment, it is A file by record file designation, hereinafter records file with A representation of file.A
The hardware information of USB storage and the file information of USB storage are stored in file.The hardware information of USB storage includes
But be not limited to the type of USB storage, amount of capacity etc., the file information of USB storage includes but is not limited to the USB storage
Quantity of documents, file name, file format for being stored etc..
Step 2: by each USB interface of one or more USB storage insertion USB slots to be tested.By in control
The heart selects and turns on target USB interface to be tested, and vehicle-mounted USB device is made to be connected with the USB storage currently tested.
Step 3: control centre reads the A file in the USB storage currently tested by vehicle-mounted USB device, and passes through
The hardware information and the file information for the USB storage that LabView software records are currently tested；
Step 4: control centre judges whether the hardware information for successfully obtaining the USB storage currently tested and file letter
Breath, if failed obtain, return step 3；If successfully obtaining, LabView software start recording is notified to test information, then
Continue step 5.
Step 5: the file stored in the USB storage currently tested is opened one by one and read to vehicle-mounted USB device, if vehicle-mounted
If USB device encounters the file that can not be read, skips and continue to read next file；And control centre is soft by LabView
Part monitors and records the file information that vehicle-mounted USB device is opened and read, including file name, file format, number of files in real time
Amount.Specifically, multiple files such as text file, picture, music can be stored in USB storage, when test, vehicle-mounted USB device
Each file is opened one by one, such as is opened picture, played music.
Step 6: control centre judges that vehicle-mounted USB device is finished to whether the file for the USB storage currently tested reads,
If reading finishes, 7 are thened follow the steps；Otherwise step 5 is repeated.
Step 7: control centre is read vehicle-mounted USB device by LabView software from the USB storage currently tested
The file information and the A file of the USB storage in the file information that stores compare, analysis obtains vehicle-mounted USB device pair
The compatible context for the USB storage currently tested.Specifically, compatible context includes: the compatible context of USB storage format, text
The compatible context of part format, the compatibility type of file format and quantity.
Step 8: control centre is outputed test result by LabView software, then control USB test circuit switch to
Next USB storage connection to be tested, so that next USB storage to be tested be made to be connected with vehicle-mounted USB device, lays equal stress on
Multiple step 3.
Therefore, the compatibility automated test macro of vehicle-mounted USB device of the invention utilizes software control USB storage
Switching and test process, may be implemented the vehicle-mounted USB device of quick automatic test to the compatibility of all kinds of USB storages and
To the compatibility of Miscellaneous Documents format, testing efficiency is high, uses manpower and material resources sparingly；Cooperate switching chip by transistor switching circuit
The switching for realizing multiple USB slots is equivalent to the switching for realizing multiple USB storages, and circuit is simple, favorable expandability；Lead to and is counting
Calculation machine installs LabView test software and tracks and records test result, overcomes the subjectivity of vehicle-mounted USB device compatibility test,
The reliability of test result is improved, and improves testing efficiency and test range.
Although description of this invention combination embodiments above carries out, those skilled in the art
Member can carry out many replacements based on the above contents, modifications and variations, be obvious.Therefore, all such substitutions,
Improvements and changes are included in the spirit and scope of appended claims.
Claims (9)
1. a kind of compatibility automated test method of vehicle-mounted USB device, which comprises the following steps:
1) a record file is stored in advance in USB storage to be tested, the record file stores the USB to be tested
The file information of the hardware information of memory and the USB storage to be tested, the file of the USB storage to be tested
Information includes quantity, file name, the file format for the file that USB storage to be tested is stored；
2) the vehicle-mounted USB device reads the record file in the USB storage currently tested, and records the USB currently tested
The hardware information and the file information of memory；
3) the multiple files stored in the USB storage currently tested are opened one by one and read to vehicle-mounted USB device, and described in record
The file information that vehicle-mounted USB device is read, the multiple file includes text file, picture, music file；
4) the file information that USB device vehicle-mounted when testing is opened and read is compared with the file information in record file,
Analysis obtains compatible context of the vehicle-mounted USB device to the USB storage currently tested；
5) it after outputing test result, is switched to and next USB storage to be tested by vehicle-mounted USB device described in software control
It is connected, and repeats step 3).
2. the compatibility automated test method of vehicle-mounted USB device according to claim 1, which is characterized in that the step
Rapid, 3) if further comprising the steps of: the vehicle-mounted USB device encounters the file that can not be read later, skips, what reading was currently tested
Next file in USB storage；Judge whether the file stored in the USB storage currently tested reads to finish, if reading
It finishes, thens follow the steps 4)；Otherwise step 3) is repeated.
3. the compatibility automated test method of vehicle-mounted USB device according to claim 2, which is characterized in that the note
Record the fixed name of file setting one.
4. the compatibility automated test method of vehicle-mounted USB device according to claim 3, which is characterized in that described simultaneous
Condition of showing mercy includes: the compatible context of the compatible context of USB storage format, file format.
5. a kind of compatibility automated test macro of vehicle-mounted USB device, which is characterized in that including a vehicle-mounted USB device, one
USB tests circuit, multiple USB storages to be tested and a control centre；The control centre and the vehicle-mounted USB device phase
Connection, for data processing and exports compatibility test result；The USB test circuit is connected with the vehicle-mounted USB device,
It is connect for realizing multiple USB storages to be tested with the switching of the vehicle-mounted USB device；
The data processing specifically includes:
A record file is stored in advance in USB storage to be tested, the record file stores the USB to be tested and deposits
The file information of the hardware information of reservoir and the USB storage to be tested, the file letter of the USB storage to be tested
Breath includes quantity, file name, the file format for the file that USB storage to be tested is stored；
The vehicle-mounted USB device reads the record file in the USB storage currently tested, and records the USB currently tested and deposit
The hardware information and the file information of reservoir；
It opens one by one and reads the multiple files stored in the USB storage currently tested, and record the vehicle-mounted USB device and read
The file information taken, the multiple file include text file, picture, music file；
The file information that USB device vehicle-mounted when testing is opened and read is compared with the file information in record file, point
Analysis obtains compatible context of the vehicle-mounted USB device to the USB storage currently tested.
6. the compatibility automated test macro of vehicle-mounted USB device according to claim 5, which is characterized in that the USB
Testing circuit includes a MCU control module, a switch module, a USB switching circuit and a USB slot；The USB switching electricity
Road includes one or more transistor switching circuits and one or more switching chips.
7. the compatibility automated test macro of vehicle-mounted USB device according to claim 6, which is characterized in that the USB
Slot includes multiple USB interfaces, and the USB interface includes two data port, a positive pole port and a power cathode end
Mouthful；The transistor switching circuit is connected with the positive pole port of each USB interface respectively, described each for controlling
The power supply power supply or disconnection of USB interface.
8. the compatibility automated test macro of vehicle-mounted USB device according to claim 7, which is characterized in that the MCU
Control module controls the switching chip and the data port of each USB interface is connected and disconnected from and the MCU control module control
Make the switch of the transistor switching circuit.
9. the compatibility automated test macro of vehicle-mounted USB device according to claim 8, which is characterized in that the control
Center processed is a computer；The computer is equipped with LabView test software.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108009091A (en) * | 2017-12-04 | 2018-05-08 | 北京远特科技股份有限公司 | A kind of compatibility test system and method for vehicle device equipment and external equipment |
| CN109324246A (en) * | 2018-09-28 | 2019-02-12 | 惠州市德赛西威汽车电子股份有限公司 | A kind of Auto-Test System and method of testing mobile phone charging compatibility |
| CN109444593B (en) * | 2018-11-21 | 2021-04-06 | 科大智能电气技术有限公司 | Automatic testing system and method for load-carrying performance of power distribution terminal |
| CN111290945B (en) * | 2020-01-17 | 2023-07-14 | 惠州市德赛西威汽车电子股份有限公司 | Compatibility test system and method for vehicle-mounted application equipment to externally connected storage equipment |
| CN113868038B (en) * | 2021-08-30 | 2024-06-04 | 中科可控信息产业有限公司 | Signal testing method, device, computer equipment and storage medium |
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