CN107861052B - Circuit board test box - Google Patents
Circuit board test box Download PDFInfo
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- CN107861052B CN107861052B CN201711202725.9A CN201711202725A CN107861052B CN 107861052 B CN107861052 B CN 107861052B CN 201711202725 A CN201711202725 A CN 201711202725A CN 107861052 B CN107861052 B CN 107861052B
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- Prior art keywords
- circuit board
- minimum system
- testing
- test
- lower box
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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
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
Abstract
The invention relates to a circuit board test box which comprises a lower box body and an upper cover plate, wherein the upper cover plate is hinged to the lower box body and can be buckled with the lower box body, the upper end of the lower box body is provided with a middle cover plate, a tablet computer, a power switch, a minimum system plate and a test interface are installed on the middle cover plate, a test circuit board is stacked and installed below the minimum system plate, a power module used for supplying power to the tablet computer, the minimum system plate and the test circuit board is installed in the lower box body, and the minimum system plate and the test circuit board are designed in a standardized mode to meet the development requirements of different platforms. The invention is convenient to carry, the development and the test of the circuit board are more convenient due to the modularized and standardized design, and the design and the debugging of the upper computer software are more flexible due to the industrial tablet computer.
Description
Technical Field
The invention relates to the technical field of circuit board testing, in particular to a circuit board testing box.
Background
At present, most of tests on a circuit board are still performed from the perspective of functions of components, and the whole circuit is divided into a plurality of functional blocks to be tested one by one. Due to the lack of analysis on the product principle, the actual working state of the product cannot be fully simulated in the test, and the fault generated by the plate in the real-time working state is difficult to find, so that a circuit board test method which is more in line with the actual working state of the product needs to be researched.
With the batch repair of the circuit boards, the factory develops test research work gradually for the circuit boards and core boards with high internal failure rate of the airborne products. Although a plurality of test circuit modules are researched and developed and used for simulating the actual working state of the circuit board and testing, researching and maintaining the circuit board, the circuit board cannot form a uniform standard so that the circuit board cannot be effectively applied to the field, and the developed test circuit modules are finally bare boards and are difficult to apply to field maintenance work; secondly, the testing software developed by the individual is in the personal computer, which is inconvenient for the operation and application of the maintenance personnel. The project completion time is long, or a computer fails, so that software is easily lost, and developers forget program contents, thereby causing maintenance difficulty; for the development of a test circuit, research and development personnel basically continue to use a single chip microcomputer with mature application, X86, DSP, CPLD, PFGA and the like as a core processor of a test circuit module, but the minimum system of the processor is not designed and applied in a standardized way. The research personnel are duplicated with each other, so that more faults occur and the maintenance is difficult.
Disclosure of Invention
In order to avoid and solve the technical problems, the invention provides a circuit board testing box.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a circuit board test box, includes box, articulated installation under on the box and can with the upper cover plate that the box lock was in the same place down, the box upper end is provided with the middle part apron down, install panel computer, switch, minimum system board, test circuit board, test interface on the apron of middle part, through test interface will minimum system board is connected test circuit board, test circuit board's top is piled up the installation minimum system board, minimum system board passes through RS232 bus or RS485 bus connection panel computer transmission data information, install down the power module who is used for supplying power to panel computer, minimum system board and test circuit board in the box.
And a storage box is arranged on one side of the upper cover plate close to the lower box body.
The lower box body is provided with a fan used for radiating the inside of the lower box body.
And the lower box body is provided with an external power supply interface which can be connected with an external power supply.
And the lower box body is provided with a USB interface connected with the tablet personal computer.
The utility model discloses a test circuit board, including power module, panel computer, minimum system board, test circuit board (9), power module input voltage is the 220V alternating current, and output voltage is 27V, 15V, 5V, 12V, power module's negative pole is connected the negative pole of panel computer, minimum system board and test circuit board (9), each output power positive pole of power module is connected switch, switch is equipped with 5 independent switches, controls 220V, 27V, 15V, 5V, 12V's power break-make respectively, 5 independent switches of switch correspond the connection respectively panel computer, minimum system board and test circuit board's the positive pole of the power that demands.
The testing interface comprises an RS422 serial communication interface bus, an SPI serial communication interface bus, an IIC serial communication interface bus, a 1553B serial communication interface bus, a CAN serial communication interface bus and an ARINC429 serial communication interface bus, the testing interface selectively connects the minimum system board with the testing circuit board through the interfaces, the testing circuit board is installed on the right side of the middle cover plate, the minimum system board is installed above the testing circuit board in a stacked mode through studs, and the minimum system board is connected with the tablet personal computer through the RS232 bus or the RS485 bus.
The invention has the beneficial effects that: the invention carries out unified standardized design on the existing circuit board test box, thereby facilitating the test development and maintenance of the circuit board; the unified minimum system core board design enables the circuit board to be more convenient and efficient to develop and debug; and an industrial tablet computer is adopted as a human-computer interface, so that the design and debugging of upper computer software are more flexible.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic structural diagram of the connection between the lower box and the power module according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
The invention provides a circuit board test box, which modularly encapsulates components such as an upper computer, a lower computer, an execution circuit board and the like in a test box body during circuit board test work, and facilitates development and maintenance of different plates by developers and maintenance testers.
The upper layer schematic diagram and the lower layer internal schematic diagram shown in fig. 1:
the utility model provides a circuit board test box, includes box 2, articulated installation down on box 2 and can with the upper cover plate 1 that box 2 lock-joint was in the same place down, 2 upper ends of box are provided with middle part apron 3 down, install panel computer 5, switch 6, minimum system board 7, test circuit board 8, test interface 9 on the middle part apron 3, through test interface 9 will minimum system board 7 is connected test circuit board 8, the installation is piled up to test circuit board 8's top minimum system board 7, minimum system board 7 passes through RS232 bus or RS485 bus connection panel computer 5 transmits data information, install power module 12 that is used for the power supply to panel computer 5, minimum system board 7 and test circuit board 8 in the box 2 down.
One side of upper cover plate 1 near lower box 2 is equipped with storage box 4, storage box 4 is used for depositing the equipment that development personnel used of being convenient for such as test wire, power cord, mouse, keyboard, debugger.
Be equipped with on lower box 2 and be used for carrying out radiating fan 10 to lower box 2 inside, fan 10 lug connection power module 12 gets the electricity.
The lower box body 2 is provided with an external power supply interface 11 which can be connected with an external power supply, the external power supply interface 11 is a 220V alternating current input interface, and the external power supply interface 11 is connected with the power supply module 12 to input 220V alternating current.
The testing interface 9 comprises an RS422 serial communication interface bus, an SPI serial communication interface bus, an IIC serial communication interface bus, a 1553B serial communication interface bus, a CAN serial communication interface bus and an ARINC429 serial communication interface bus, the testing interface 9 selectively connects the minimum system board 7 with the testing circuit board 8 through the interfaces, the testing circuit board 8 is installed on the right side of the middle cover plate 3, the minimum system board 7 is installed above the testing circuit board 8 in a stacked mode through studs, the testing circuit board 8 adopts a PCB board with uniform size, and research and development personnel design and manufacture the uniform testing circuit board to enable the testing circuit to be standardized and conveniently install the testing circuit in the testing box.
The minimum system board 7 comprises a single chip microcomputer, an X86, a DSP, a CPLD, an FPGA and other minimum system boards of various models, the minimum system boards of the models are subjected to hardware standardized design, and after the design and manufacture are completed, a test circuit board developer does not need to design the minimum system of the model again and only needs to reserve a standard connector for butt joint. Therefore, the design time can be saved, and the circuit board can be conveniently tested. Meanwhile, the hardware program is convenient to write, and the replacement and maintenance are more convenient.
The tablet computer 5 adopts a 10-inch industrial tablet computer with a touch screen as an upper computer of the test system, the tablet computer uses a Windows operating system for control, acquisition and display functions, the lower box body 2 is provided with a USB interface 13 connected with the tablet computer 5, the USB interface 13 is used for connecting a mouse, a keyboard, a debugger and other USB equipment which are convenient for development and test, the tablet computer 5 is simultaneously provided with an RS232 interface and an RS485 interface for connecting the minimum system board 7 or the test circuit board 8 to realize control and data interaction with the test circuit, and the tablet computer is reserved with an LAN port for subsequent development and use.
The working flow of the invention is specifically described below with reference to examples:
the circuit board in the field of aircraft maintenance is generally based on a singlechip, X86, DSP, CPLD, FPGA and other platforms, aiming at different applied functions, other peripheral circuits are integrated to form a functional module integrated circuit board, by applying the principle of the invention, a main controller and an auxiliary circuit are modularized and independent, a main controller circuit is developed into the minimum system board 7, other application circuits are developed into the test circuit board, the test interface 9 selects a corresponding interface to connect the test circuit board 8 with the minimum system board 7 according to different requirements of maintenance or development, a corresponding test program for the test circuit board 8 is operated in the minimum system board 7, debugging information, input and output information and the like in the operation process of the test program are transmitted to the tablet computer 5 through RS232 or RS485 buses, the tablet computer 5 is provided with a corresponding upper computer program for debugging and displaying related test information, the USB interface is connected with a tablet personal computer to access external equipment such as a mouse, a keyboard, a debugger and the like. The whole device is convenient to carry, the modular design enables the development and maintenance process of the circuit board to be more convenient, and the tablet personal computer with the touch function is convenient for man-machine interaction and debugging operation.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a circuit board test box, includes box (2), articulated installation under on box (2) and can with upper cover plate (1) that box (2) lock is in the same place down, be provided with middle part apron (3) lower box (2) upper end, its characterized in that: the testing device is characterized in that a tablet personal computer (5), a power switch (6), a minimum system board (7), a testing circuit board (8) and a testing interface (9) are installed on the middle cover plate (3), the minimum system board (7) is connected with the testing circuit board (8) through the testing interface (9), the minimum system board (7) is installed above the testing circuit board (8) in a stacked mode, the minimum system board (7) is connected with the tablet personal computer (5) through an RS232 bus or an RS485 bus to transmit data information, a power module (12) used for supplying power to the tablet personal computer (5), the minimum system board (7) and the testing circuit board (8) is installed in the lower box body (2), the testing interface (9) comprises an RS422, SPI, IIC, 1553B, CAN and ARINC429 serial communication interface buses, and corresponding testing interfaces are selected according to different requirements to connect the minimum system board (7) with the testing circuit board (8), test circuit board (8) are installed middle part apron (3) right side, minimum system board (7) are stacked up through the double-screw bolt and are installed test circuit board (8) top, minimum system board (7) pass through RS232 bus or RS485 bus with panel computer (5) link to each other, power module (12) input voltage is the 220V alternating current, and output voltage is 27V, 15V, 5V, 12V, the negative pole of power module (12) is connected panel computer (5), minimum system board (7) and test circuit board (8) the negative pole, each output power positive pole of power module (12) is connected switch (6), switch (6) are equipped with 5 independent switches, control 220V, 27V respectively, 15V, 5V, 12V's power break-make respectively, 5 independent switches of switch (6) correspond respectively and connect panel computer (5), The positive pole of the required power supply of the minimum system board (7) and the test circuit board (8); the minimum system board (7) comprises a singlechip, an X86, a DSP, a CPLD and a FPGA, and is subjected to hardware standardized design.
2. A circuit board testing cabinet according to claim 1, characterized in that: and a storage box (4) is arranged on one side of the upper cover plate (1) close to the lower box body (2).
3. A circuit board testing cabinet according to claim 1, characterized in that: the lower box body (2) is provided with a fan (10) used for dissipating heat inside the lower box body (2).
4. A circuit board testing cabinet according to claim 1, characterized in that: and an external power supply interface (11) which can be connected with an external power supply is arranged on the lower box body (2).
5. A circuit board testing cabinet according to claim 1, characterized in that: and the lower box body (2) is provided with a USB interface (13) connected with the tablet personal computer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202725.9A CN107861052B (en) | 2017-11-27 | 2017-11-27 | Circuit board test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202725.9A CN107861052B (en) | 2017-11-27 | 2017-11-27 | Circuit board test box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107861052A CN107861052A (en) | 2018-03-30 |
| CN107861052B true CN107861052B (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711202725.9A Active CN107861052B (en) | 2017-11-27 | 2017-11-27 | Circuit board test box |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141501A (en) * | 2018-10-17 | 2019-01-04 | 重庆欧尼斯特机电有限公司 | The data fault measuring and analysing meter of Portable belt |
| CN111999640A (en) * | 2020-07-22 | 2020-11-27 | 国营芜湖机械厂 | Circuit board testing system based on cabinet and testing method thereof |
| CN113640552A (en) * | 2021-08-10 | 2021-11-12 | 成都尚琰科技有限公司 | Novel measuring instrument |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200996986Y (en) * | 2007-01-15 | 2007-12-26 | 宁波大学 | Digital circuit and system experimental platform |
| CN201773169U (en) * | 2010-06-23 | 2011-03-23 | 天津渤海易安泰电子半导体测试有限公司 | Testing system for integrated circuit chip |
| CN103245906A (en) * | 2013-04-22 | 2013-08-14 | 南京同尔电子科技有限公司 | Circuit board function test system |
| CN203535872U (en) * | 2013-10-14 | 2014-04-09 | 储茂祥 | Experiment platform integrated with DSP, single-chip microcomputer and CPLD |
| CN103885358B (en) * | 2014-01-27 | 2016-08-24 | 深圳英飞拓科技股份有限公司 | Safety-protection system device board development platform |
| CN105606985A (en) * | 2014-10-31 | 2016-05-25 | 陕西高华知本化工科技有限公司 | Circuit tester |
| CN204203419U (en) * | 2014-11-03 | 2015-03-11 | 杭州九固科技有限公司 | A kind of PCB proving installation of modularization framework |
| CN105911454B (en) * | 2016-04-18 | 2018-10-26 | 西北核技术研究所 | A kind of Modularized digital integrated circuit radiation effect Online Transaction Processing and test method |
| CN105842572B (en) * | 2016-06-12 | 2019-02-05 | 重庆金美通信有限责任公司 | A kind of portable general comprehensive detector |
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| CN107861052A (en) | 2018-03-30 |
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