CN112083312A - Hardware testing method and system for master control PCBA (printed circuit board assembly) of VR (virtual reality) film watching equipment - Google Patents
Hardware testing method and system for master control PCBA (printed circuit board assembly) of VR (virtual reality) film watching equipment Download PDFInfo
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- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2815—Functional tests, e.g. boundary scans, using the normal I/O contacts
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- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
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- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention relates to a hardware test method and a hardware test system of a main control PCBA board of VR film watching equipment, which are loaded into a test fixture by means of related embedded test software, then a test program is led into the main control PCBA board, and a test result is printed and sent to a hardware test system of a computer client through USB communication.
Description
Technical Field
The invention relates to the field of VR film watching equipment, in particular to a hardware test method and a hardware test system for a main control PCBA (printed circuit board assembly) of VR film watching equipment.
Background
VR (virtual reality, VR) is a computer simulation system that can create and experience virtual world, and it uses computer to generate a simulation environment, which is a system simulation of multi-source information-fused interactive three-dimensional dynamic visual and physical behaviors to immerse users in the environment. The virtual reality technology is an important direction of the simulation technology, and the collection of various technologies such as the simulation technology, the computer graphics man-machine interface technology, the multimedia technology sensing technology network technology and the like is a challenging advanced subject of cross technology and research field.
The main control PCBA board of VR film watching equipment is a key component for deciding that the VR film watching equipment performs various instruction operations, so when the main control PCBA board is assembled into the VR film watching equipment, whether each function module works normally needs to be detected, the detection work of the function modules is performed manually at present, each function module is checked one by means of related instruments, time is wasted, the assembly efficiency is reduced, the condition that the detection result is unqualified due to manual misoperation exists, the condition that the main control PCBA board with the normal modules is placed in an NG area or repaired is caused, the maintenance cost is improved, in addition, the detection method of each operator is different, the problem that the detection standards are inconsistent exists, and the quality control of the detection condition is difficult to perform.
Disclosure of Invention
The invention aims to provide a hardware test system which aims at the function module of a main control PCBA board of VR film watching equipment, does not need manual detection, is loaded into a test fixture by means of related embedded test software, then introduces a test program into the main control PCBA, prints and sends a test result to a computer client through USB communication, and can realize detection on the functions of a power supply detection module, a main control detection module, a serial communication port detection module, a voice detection module, a loudspeaker communication detection module, an external lamp driving detection module and an SIM interface detection module through software program instructions, and has unified standards, so that the detection efficiency and the assembly efficiency are improved, the condition that the detection result is unqualified due to manual misoperation is avoided, and the maintenance cost is reduced.
In view of the above situation, it is necessary to provide a hardware testing system for a main control PCBA board of a VR film viewing device, including the PCBA board, a testing fixture for testing functional modules on the PCBA board, testing software installed on the testing fixture of the PCBA board in an embedded manner for importing a testing program, and a computer client for outputting and printing a testing result, a controller in the testing fixture is communicatively connected to the testing software, a controller of the testing fixture is communicatively connected to a main control chip of the PCBA board, the testing software is communicatively connected to a USB of the computer client, wherein the functional modules of the PCBA board include:
the power supply detection module is used for testing the power supply voltage on the PCBA board;
the main control detection module is used for testing whether the main control chip can normally burn the program;
the serial communication port detection module is used for testing whether the communication between the UART serial port of the master control chip and the UART of the USB interface and the serial port of the communication module is normal or not;
the voice detection module is used for testing whether the voice IC circuit works normally;
the loudspeaker communication detection module is used for testing whether the power amplifier loudspeaker circuit is normal;
the peripheral lamp driving detection module is used for testing whether the peripheral lamp driving circuit works normally or not;
and the SIM interface detection module is used for testing whether the SIM card interface can be normally connected with the SIM card.
In addition, the invention also provides a hardware test method of the master control PCBA board of the VR film watching equipment, which comprises the following steps:
the communication connection is realized, a controller in the test fixture is connected with the test software in a communication way, and the controller of the test fixture is connected with the main control chip of the PCBA board in a communication way;
supplying power to the PCBA, controlling a thimble type test needle on the test fixture to be in contact with the power supply test point of the PCBA by the controller, and providing electric energy for the PCBA by the test fixture through the thimble type test needle;
making a test instruction, receiving the function test instruction of a user by the test software, and sending the function test instruction to a controller of the test fixture;
sending an instruction to a main control chip of the PCBA, and sending a functional test instruction to the main control chip of the PCBA by a controller of the test fixture;
the function module test, the PCBA board responds and tests the function module corresponding to the function test instruction, and the controller acquires test information and a test result;
the test result is fed back to the test software, and the controller sends the test result to the test software;
and feeding back the test result to the computer client, respectively sending the test result to the computer client by the test software through USB communication, displaying the test result by the computer client, and printing specific information of the test result.
Further, the functional module includes a power detection module, a master control detection module, a serial communication port detection module, a voice detection module, a speaker communication detection module, a peripheral lamp driving detection module, an SIM interface detection module, and a memory card reading module.
Further, the test fixture firstly performs function test on the power detection module, judges whether the power detection module is normal, stops testing the PCBA if the power detection module is abnormal, and continues to detect whether other function modules are normal if the power detection module is normal.
Further, the testing of the power detection module comprises the following steps:
the test of the power supply detection module comprises the following steps:
the test fixture provides electric energy for the PCBA through the ejector pin type test probe;
collecting an external port for the PCBA board ADC through a resistance voltage-dividing circuit, and respectively collecting a power supply voltage V1 of the head display equipment, a power supply voltage V2 of the main control circuit and a power supply voltage V3 of the communication module;
obtaining specific voltage values of V3 of V1 and V2 through a preset algorithm of the test software, and feeding back the specific voltage values to a controller of the test fixture;
and the controller of the test fixture reads the standard file configured in the controller, compares the standard file with the voltage values of V1 and V3 of V2 fed back by the test software, judges that the power supply detection module is normal if the standard file is consistent with the voltage values of V1 and V2, and otherwise judges that the power supply detection module is abnormal.
Further, the testing of the master control detection module comprises the following steps: and a JTAG interface is arranged on the PCBA, a test program is burnt by the J-Flash burning tool, if the burning is successful, the J-Flash burning tool can display the successful information of the burning program, the main control detection module works normally, otherwise, the main control detection module works abnormally.
Further, the testing of the serial communication port detection module comprises the following steps: and sending a test information command to the serial port UART and the USB interface of the communication module through the UART serial port of the master control chip, if response information can be received, the serial communication port detection module works normally, otherwise, the serial communication port detection module works abnormally.
Further, the testing of the voice detection module and the speaker communication detection module comprises the following steps: the main control chip sends a voice broadcast address, if the broadcast statement is successful, the voice detection module and the loudspeaker communication detection module work normally, otherwise, the loudspeaker communication detection module works abnormally.
Further, the test method of the peripheral lamp driving detection module comprises the following steps: the main control chip provides a driving level for the peripheral lamp driving circuit, if the LED lamp connected with the peripheral lamp driving circuit on the test fixture can be lightened, the peripheral lamp driving detection module works normally, otherwise, the peripheral lamp driving detection module works abnormally.
Further, the testing method of the SIM interface detection module includes the following steps: the SIM card interface is accessed into the SIM card, the main control chip sends a card reading command to the communication module, if the communication module identifies the SIM successfully and returns the information of successful card reading, the SIM interface detection module is judged to work normally, otherwise, the SIM interface detection module works abnormally.
The invention has the beneficial effects that: through packing into test fixture with the help of relevant embedded test software, then lead-in test program to main control PCBA in, through USB communication, the test result is printed and is sent to computer guest's hardware test system, this test system can realize detecting the power detection module through software program command, main control detection module, serial communication interface detection module, pronunciation detection module, speaker communication detection module, peripheral hardware lamp drive detection module and SIM interface detection module's function detects, there is unified standard, thus detection efficiency and assembly efficiency have been promoted, and avoided leading to the unqualified condition of test result because of artifical maloperation, reduce cost of maintenance.
Drawings
FIG. 1 is a flow chart of a hardware testing system according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a hardware testing method according to an embodiment of the present invention.
In the drawing, a PCBA board 100; a test fixture 200; computer client 300.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following describes in detail a hardware testing method and a testing system for a master control PCBA board of a VR film viewer according to the present invention with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, in a specific embodiment provided by the present invention, a hardware testing system of a main control PCBA board mainly includes a PCBA board 100, a testing fixture 200 for testing functional modules on the PCBA board, testing software installed on the testing fixture of the PCBA board in an embedded manner for importing a testing program, and a computer client 300 for outputting and printing a testing result, a controller in the testing fixture 200 is communicatively connected to the testing software, a controller of the testing fixture 200 is communicatively connected to a main control chip of the PCBA board 100, and the testing software is communicatively connected to the computer client 300 through a USB, where the functional modules of the PCBA board 100 include:
the power supply detection module is used for testing the power supply voltage on the PCBA board;
the main control detection module is used for testing whether the main control chip can normally burn the program;
the serial communication port detection module is used for testing whether the communication between the UART serial port of the master control chip and the UART of the USB interface and the serial port of the communication module is normal or not;
the voice detection module is used for testing whether the voice IC circuit works normally;
the loudspeaker communication detection module is used for testing whether the power amplifier loudspeaker circuit is normal;
the peripheral lamp driving detection module is used for testing whether the peripheral lamp driving circuit works normally or not;
and the SIM interface detection module is used for testing whether the SIM card interface can be normally connected with the SIM card.
Understandably, by loading the test software into the test fixture 200 by means of related embedded test software, then leading in a test program to the main control PCBA board 100, through USB communication, the test result is printed and sent to a hardware test system of a computer client, the test system can realize the detection of the functions of the power supply detection module, the main control detection module, the serial communication port detection module, the voice detection module, the speaker communication detection module, the peripheral lamp driving detection module and the SIM interface detection module through software program instructions, and has unified standards, thus improving the detection efficiency and the assembly efficiency, avoiding the condition that the detection result is unqualified due to manual misoperation, and reducing the maintenance cost.
It should be noted that the test system of the present invention may further detect a memory card reading detection module, where the memory card reading detection module is used to detect whether the memory card reading circuit operates normally.
In addition, referring to fig. 2, the present invention further provides a hardware testing method for a master control PCBA board of a VR film watching device, comprising the following steps:
the communication connection is realized, a controller in the test fixture is connected with the test software in a communication way, and the controller of the test fixture is connected with the main control chip of the PCBA board in a communication way;
supplying power to the PCBA, controlling a thimble type test needle on the test fixture to be in contact with the power supply test point of the PCBA by the controller, providing electric energy for the PCBA by the test fixture through the thimble type test probe, wherein the power supply test point and the test contact point of each functional module are reserved on the PCBA;
making a test instruction, receiving the function test instruction of a user by the test software, and sending the function test instruction to a controller of the test fixture;
sending an instruction to a main control chip of the PCBA, and sending a functional test instruction to the main control chip of the PCBA by a controller of the test fixture;
the PCBA board responds and tests a functional module corresponding to the functional test instruction, the controller obtains test information and a test result, specifically, the controller controls a thimble type test needle on the test fixture to be in contact with a test contact point of the corresponding functional module on the PCBA board, and a test signal of the functional module is input to the PCBA single board to test the functional module;
the test result is fed back to the test software, and the controller sends the test result to the test software;
and feeding back the test result to the computer client, respectively sending the test result to the computer client by the test software through USB communication, displaying the test result by the computer client, and printing specific information of the test result.
The functional module needing to be detected comprises a power supply detection module, a master control detection module, a serial communication port detection module, a voice detection module, a loudspeaker communication detection module, a peripheral lamp driving detection module, an SIM interface detection module and a memory card reading module.
It can be understood that, by means of the relevant embedded test software, the test program is imported into the main control PCBA board, the test result is printed and sent to the computer client 300 through USB communication, the test is passed and the test OK is displayed, the test FALSE is displayed if the test is not passed and the specific information of the test failure is printed.
In an embodiment of the present invention, a specific detection method of the power detection module mainly tests three voltages: the direct power supply voltage 15V for supplying power to the head display equipment, the voltage 3.3V for supplying power to the main control circuit and the voltage 4.0V for supplying power to the communication module are provided, the test circuit is a resistance voltage division circuit, an external port is acquired for the main control board ADC, after the voltage is acquired, a voltage value is obtained through an algorithm of test software, and the voltage value is sent to the PC terminal test client to print voltage information.
More specifically, a resistance voltage-dividing circuit is used for collecting an external port for the PCBA board ADC, and a head display equipment power supply voltage V1, a main control circuit power supply voltage V2 and a communication module power supply voltage V3 are respectively collected; obtaining specific voltage values of V3 of V1 and V2 through a preset algorithm of the test software, and feeding back the specific voltage values to a controller of the test fixture; and the controller of the test fixture reads the standard file configured in the controller, compares the standard file with the voltage values of V1 and V3 of V2 fed back by the test software, judges that the power supply detection module is normal if the standard file is consistent with the voltage values of V1 and V2, and otherwise judges that the power supply detection module is abnormal.
In an embodiment of the invention, a specific detection method of the main control detection module is to test whether the main control chip can normally burn the program, the test program is burned through the JTAG interface by means of a J-Flash burning tool, the J-Flash tool displays the successful information of the burning program if the burning is successful, otherwise, the burning fails.
In an embodiment of the present invention, a specific detection method of the serial communication port detection module is to test whether the communication between the UART serial port of the main control chip and the USB interface, and the serial port UART of the communication module is normal, send a related command to the corresponding interface through the main control chip, and receive response information, so as to determine whether the related circuit is working normally.
In an embodiment of the present invention, the specific detection method of the voice detection module and the speaker communication detection module is that the main control chip sends a voice broadcast address, and if the broadcast statement is successful, it is determined that the voice IC circuit and the power amplifier speaker circuit are working normally, that is, the voice detection module and the speaker communication detection module are working normally, otherwise, the voice detection module and the speaker communication detection module are working abnormally.
In an embodiment of the invention, the specific detection method of the peripheral lamp driving detection module is that the main control chip provides a driving level to the related driving circuit, and if the related LED lamp of the test fixture can be turned on, it indicates that the driving circuit is working normally, otherwise, the driving circuit is not working normally.
In an embodiment of the present invention, a specific detection method of the SIM interface detection module is that the SIM card interface is accessed to the SIM card, the main control chip sends a card reading command to the communication module, and if the communication module successfully identifies the SIM, the communication module returns the relevant information of successful card reading, so as to determine that the card reading circuit is normally working, otherwise, the card reading circuit is abnormally working.
In an embodiment of the present invention, a specific test method of the memory card reading module is to access a TF card, and the computer client 300 reads contents in the card through a USB cable and returns information of successful reading to the main control chip, and if successful reading, it determines that the memory card interface and related circuits are working normally, otherwise, the memory card interface and related circuits are not working normally.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a VR sees hardware test system of shadow equipment main control PCBA board, its characterized in that, include the PCBA board, be used for testing PCBA board on the function module's test fixture, embedded install the test software that is used for leading-in test program on PCBA board test fixture and be used for the computer client who exports and print the test result, controller communication connection in the test fixture test software, the test fixture's controller with PCBA board's main control chip communication connection, test software with computer client USB communication connection, wherein, the function module of PCBA board includes:
the power supply detection module is used for testing the power supply voltage on the PCBA board;
the main control detection module is used for testing whether the main control chip can normally burn the program;
the serial communication port detection module is used for testing whether the communication between the UART serial port of the master control chip and the UART of the USB interface and the serial port of the communication module is normal or not;
the voice detection module is used for testing whether the voice IC circuit works normally;
the loudspeaker communication detection module is used for testing whether the power amplifier loudspeaker circuit is normal;
the peripheral lamp driving detection module is used for testing whether the peripheral lamp driving circuit works normally or not;
and the SIM interface detection module is used for testing whether the SIM card interface can be normally connected with the SIM card.
2. A hardware test method for a master control PCBA board of VR film watching equipment is characterized by comprising the following steps:
the communication connection is realized, a controller in the test fixture is connected with the test software in a communication way, and the controller of the test fixture is connected with the main control chip of the PCBA board in a communication way;
supplying power to the PCBA, controlling a thimble type test needle on the test fixture to be in contact with the power supply test point of the PCBA by the controller, and providing electric energy for the PCBA by the test fixture through the thimble type test needle;
making a test instruction, receiving the function test instruction of a user by the test software, and sending the function test instruction to a controller of the test fixture;
sending an instruction to a main control chip of the PCBA, and sending a functional test instruction to the main control chip of the PCBA by a controller of the test fixture;
the function module test, the PCBA board responds and tests the function module corresponding to the function test instruction, and the controller acquires test information and a test result;
the test result is fed back to the test software, and the controller sends the test result to the test software;
and feeding back the test result to the computer client, respectively sending the test result to the computer client by the test software through USB communication, displaying the test result by the computer client, and printing specific information of the test result.
3. The method of claim 2, wherein the function modules include a power detection module, a main control detection module, a serial communication port detection module, a voice detection module, a speaker communication detection module, a peripheral lamp driver detection module, a SIM interface detection module, and a memory card reader module.
4. The method of claim 3, wherein the testing fixture first performs a function test on the power detection module, determines whether the power detection module is normal, stops testing the PCBA if the power detection module is abnormal, and continues to detect whether other function modules are normal if the power detection module is normal.
5. The method of claim 3, wherein the testing of the power detection module comprises:
the test fixture provides electric energy for the PCBA through the ejector pin type test probe;
collecting an external port for the PCBA board ADC through a resistance voltage-dividing circuit, and respectively collecting a power supply voltage V1 of the head display equipment, a power supply voltage V2 of the main control circuit and a power supply voltage V3 of the communication module;
obtaining specific voltage values of V3 of V1 and V2 through a preset algorithm of the test software, and feeding back the specific voltage values to a controller of the test fixture;
and the controller of the test fixture reads the standard file configured in the controller, compares the standard file with the voltage values of V1 and V3 of V2 fed back by the test software, judges that the power supply detection module is normal if the standard file is consistent with the voltage values of V1 and V2, and otherwise judges that the power supply detection module is abnormal.
6. The method for hardware testing of a master control PCBA board of a VR viewing device of claim 3, wherein the testing of the master control detection module includes the steps of: and a JTAG interface is arranged on the PCBA, a test program is burnt by the J-Flash burning tool, if the burning is successful, the J-Flash burning tool can display the successful information of the burning program, the main control detection module works normally, otherwise, the main control detection module works abnormally.
7. The method for hardware testing of a master control PCBA board of a VR viewing device as claimed in claim 3, wherein the testing of the serial communication port detection module includes the steps of: and sending a test information command to the serial port UART and the USB interface of the communication module through the UART serial port of the master control chip, if response information can be received, the serial communication port detection module works normally, otherwise, the serial communication port detection module works abnormally.
8. The method of claim 3, wherein the testing of the voice detection module and the speaker communication detection module comprises the steps of: the main control chip sends a voice broadcast address, if the broadcast statement is successful, the voice detection module and the loudspeaker communication detection module work normally, otherwise, the loudspeaker communication detection module works abnormally.
9. The method for hardware testing of a master control PCBA board of a VR viewing equipment as claimed in claim 3, wherein the method for testing the peripheral lamp driving detection module comprises the steps of: the main control chip provides a driving level for the peripheral lamp driving circuit, if the LED lamp connected with the peripheral lamp driving circuit on the test fixture can be lightened, the peripheral lamp driving detection module works normally, otherwise, the peripheral lamp driving detection module works abnormally.
10. The method for hardware testing of a master control PCBA board of a VR viewing device as claimed in claim 3, wherein the method for testing the SIM interface detection module comprises the steps of: the SIM card interface is accessed into the SIM card, the main control chip sends a card reading command to the communication module, if the communication module identifies the SIM successfully and returns the information of successful card reading, the SIM interface detection module is judged to work normally, otherwise, the SIM interface detection module works abnormally.
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| CN113533944A (en) * | 2021-09-17 | 2021-10-22 | 莱克电气绿能科技(苏州)有限公司 | Intelligent equipment main control board testing method |
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| WO2018120207A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Pcba functional testing device and method |
| CN110320897A (en) * | 2019-08-15 | 2019-10-11 | 厦门城光联链科技有限公司 | A kind of solar street lamp controller production test tooling and test method |
| CN110456259A (en) * | 2019-08-19 | 2019-11-15 | 深圳坚朗海贝斯智能科技有限公司 | PCBA single-board testing method and test macro |
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Application publication date: 20201215 |