CN201780573U - Test device of keyboard modules - Google Patents
Test device of keyboard modules Download PDFInfo
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- CN201780573U CN201780573U CN201020277713XU CN201020277713U CN201780573U CN 201780573 U CN201780573 U CN 201780573U CN 201020277713X U CN201020277713X U CN 201020277713XU CN 201020277713 U CN201020277713 U CN 201020277713U CN 201780573 U CN201780573 U CN 201780573U
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Abstract
The utility model is suitable for the field of test devices and particularly relates to a test device of keyboard modules, which provides the test device of the keyboard modules. The test device of the keyboard modules comprises a main control module, a selection module with a plurality of connecting plates, an analog key module and a display module, wherein the selection module with the connecting plates is connected with the main control module, receives a test command of the main control module and feeds back the code signals of tested key positions to the main control module; the analog key module is connected with the main control module, receives the command of the analog key operation of the main control module and feeds back the code value of the key positions to be tested to the main control module; and the display module is connected with the main control module and displays the data of the test result of the main control module. By a design of replacing artificial keys by analog keys, the utility model solves the problem of low test efficiency existing in the test technology of traditional keyboard modules and can effectively enhance the test efficiency.
Description
Technical field
The utility model belongs to the proving installation field, relates in particular to a kind of Keysheet module proving installation.
Background technology
The mode that tradition nation decides test computer Keysheet module in the operation is that the Keysheet module in the finished product keyboard of computer is removed, go between then to testing jig, Keysheet module to be measured is loaded on the testing jig, keyboard test software on the computer reruns, then by manually knocking the shown button contrast that is pressed on each button of keyboard and the computer screen, whether inspection is corresponding one by one, judges the quality of Keysheet module with this.
Because the computor-keyboard pushbotton One's name is legion, take the artificial mode of key testing successively to make the test step of the computor-keyboard module inefficiency that seems.
The utility model content
The purpose of this utility model is to provide a kind of Keysheet module proving installation, is intended to solve the low problem of testing efficiency that exists in the existing Keysheet module measuring technology.
The utility model is achieved in that a kind of Keysheet module proving installation, and described Keysheet module proving installation comprises:
Main control module;
Select module with described main control module test command that be connected, that accept main control module and to many connecting plates of main control module feedback test key coding signal;
With the order of described main control module analogue-key that be connected, that accept main control module operation and feed back the analogue-key module of key bit code value to be measured to main control module;
The display module that is connected with described main control module, show the main control module test result data.
Further, described main control module comprises: model is the microprocessor of the single-chip microcomputer of AVR MEGA16.
Further, described many connecting plate select the compatible PS of modules 2 and USB interface.
Further, described many connecting plates select module to comprise: a plurality of Keysheet module interfaces.
Further, described analogue-key module comprises the semiconducter simulation selector switch;
Described semiconducter simulation selector switch comprises: 16 tunnels analogy switches and 8 tunnels analogy switches.
Further, the model of described 16 tunnels analogy switches is CD4051, and the model of described 8 tunnels analogy switches is CD4067.
Further, described display module comprises LED display module and LCD display module.
Further, described Keysheet module proving installation comprises the power supply regulating filtering module that is connected respectively with described main control module, described analogue-key module and described display module;
Described power supply regulating filtering module comprises: 104 patch capacitor groups.
The utility model is by replacing the design of artificial button with analogue-key, solved the low problem of testing efficiency that exists in the existing Keysheet module measuring technology, the efficiency diagram 3 that can effectively improve test is the circuit diagram of the power supply regulating filtering module that provides of the utility model embodiment;
Description of drawings
Fig. 1 is the structure principle chart of the keyboard tester that provides of the utility model embodiment;
Fig. 2 is the structural drawing of the analogue-key module that provides of the utility model embodiment;
Fig. 3 is the circuit diagram of the power supply regulating filtering module that provides of the utility model embodiment;
Fig. 4 is the circuit diagram of 104 patch capacitor groups in the power supply regulating filtering module that provides of the utility model embodiment;
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment has solved the low problem of testing efficiency that exists in the existing Keysheet module measuring technology by replace the design of artificial button with analogue-key, can effectively improve the efficient of test.
The utility model embodiment provides a kind of keyboard tester, and described keying panel proving installation comprises:
Main control module;
Select module with described main control module test command that be connected, that accept main control module and to many connecting plates of main control module feedback test key coding signal;
With the order of described main control module analogue-key that be connected, that accept main control module operation and feed back the analogue-key module of key bit code value to be measured to main control module;
The display module that is connected with described main control module, show the main control module test result data.
Embodiment one:
Fig. 1 shows the structure principle chart of the Keysheet module proving installation that the utility model embodiment provides, and only shows the part relevant with the utility model for convenience of explanation.
Select module 12 with described main control module test command that be connected, that accept main control module and to many connecting plates of main control module feedback test key coding signal;
With the order of described main control module analogue-key that be connected, that accept main control module operation and feed back the analogue-key module 13 of key bit code value to be measured to main control module;
The display module 14 that is connected with described main control module, show the main control module test result data.
In real work, computor-keyboard inside is a matrix-scanning circuit in fact, its line and alignment have up and down, and two conductive films constitute, when pressing a certain button, promptly connect the lead of certain delegation and a certain row, its position just can be tested immediately by the sweep circuit of Keysheet module inside, thus output respective coding signal.In the present embodiment, after the selection module 12 of winning in succession connects Keysheet module to be measured more, send the order that analogue-key is operated by main control module 11 to analogue-key module 13, analogue-key module 13 is the signal of certain key position on main control module 11 feeds back corresponding to Keysheet module to be measured immediately.Main control module 11 selects module 12 to send the order of this key position on the test keyboard to be measured according to this signal to many connecting plates, according to this order, can connect with from the lead of certain delegation and a certain row on the corresponding key of the signal of analogue-key module 13 position (being equivalent to the correspondent button position of pressing on the test keyboard), its position just can be tested immediately by the sweep circuit of Keysheet module inside, thereby output respective coding signal, and to main control module 11 these coded signals of feedback.Main control module judges to this coded signal decoding back whether this coding mates with the key epiphase of being made up of keyboard-coding.If coupling is then proceeded the test of next key; If do not match, system can not report an error at once, but carries out automatically behind the software initialization at retry, behind retry, still do not match, and this number of times that do not match just reports an error by display module after reaching more than 50 times, to get rid of the pulse measurement mistake that other factors cause.After test finished, main control module 11 was sent to display module 14 with analysis processing result and shows test results.
The utility model embodiment has solved the low problem of testing efficiency that exists in the existing Keysheet module measuring technology by replace the design of artificial button with analogue-key, can effectively improve the efficient of test.
Embodiment two:
As an embodiment of the present utility model, selecting model for use is that the single-chip microcomputer of AVR MEGA16 is the microprocessor of main control module 11.This single-chip microcomputer has the processing speed of 16MIPS, extremely low power consumption, 32 programmable I/O mouths, and inside has 28 bit timing devices, and 1 16 bit timings/register satisfies the needs that proving installation designs fully.
Embodiment three:
In the present embodiment, win in succession more select module 12 compatible PS 2 and USB interface, can by toggle switch according to the interface of Keysheet module to be measured switch PS switch between 2 patterns and the USB pattern, in real work, during the system power-up initializing, the mode of operation of judgement system, if PS 2 patterns, then directly Keysheet module is carried out key testing; Whether if the USB pattern, it is qualified then also to need to measure crystal oscillator frequency, if defective then be bad product by display module prompting Keysheet module; If qualified, then continue Keysheet module is carried out key testing.
PS under the 2 type test patterns, the test duration is 1～2 second/; Under USB type test pattern, the test duration is 2～3 seconds/; Compare with the traditional test pattern, these two kinds of test patterns have greatly improved the efficient of test.
Embodiment four:
Present embodiment has been considered compatibling problems single, many board tests making the selection module 12 of winning in succession have a plurality of Keysheet module interfaces more and can realize win in succession the test of Keysheet module of polylith.
In USB interface, system uses a signal switching apparatus equally.Preferably, the high effectively four bus line buffer gate of the ternary output of use 74LS125 means the signal that the parallel connection of four tunnel output signals can not influenced other roads.In addition, using the digital circuit of Transistor-Transistor Logic level to do gate can also be square wave with the crystal oscillator signal shaping of sine, makes things convenient for the counter measures pulse of back.
In the present embodiment, select module can realize testing a plurality of Keysheet modules simultaneously more, improved the efficient of test by winning in succession.And possess PS 2 and USB interface, strengthened the compatibility of proving installation.
Embodiment five:
In the utility model embodiment, analogue-key module 13 is 8 row in order to the test line number, and columns is the Keysheet module of 18 row, and wherein 18 column scan lines are made up of a slice 16 tunnels analogy switches and a slice 8 tunnels analogy switches; 8 horizontal scanning lines are made up of another sheet 8 tunnels analogy switches.The passage of each analog switch is connected respectively on the golden finger of Keysheet module correspondence position, and the common port of each analog switch all links together, will conducting when having chosen a certain line and a certain alignment so simultaneously.Preferably, to select model respectively for use be the 8 tunnels analogy switches of CD4051 and the 16 tunnels analogy switches that model is CD4067 to the analog switch of present embodiment.As shown in Figure 2, wherein RA represents the address end A of row, the address end B of RB representative row, the address end C of RC representative row, C_H_SEL forbids end for the high position of " OK ", C_L_SEL forbids end for the low level of " OK ", CA is the address end A of " OK ", CB is the address end B of " OK ", CC is the address end C of " OK ", and CD is the address end D of " OK ", and OUT/IN is an input/output terminal, C0, C1, C2 ... row different on C17 and the Keysheet module are corresponding one by one, R0, R1, R2 ... row different on R7 and the Keysheet module is corresponding one by one.
In the utility model embodiment, use the semiconducter simulation selector switch to connect the ranks line of keyboard here, its response speed can reach μ S level, noiseless during work, and volume is very small and exquisite, and power consumption is in several milliamperes.Though inner on state resistance is arranged, through actual measurement, be approximately 130 Europe, do not influence the test of keyboard circuit fully.
Embodiment six:
In the present embodiment, display module 14 has two kinds of LED display module and LCD display modules, can between the two, switch by toggle switch, the LED display module is mainly used in the test when producing, when using this module, with the bright of LED lamp and secretly represent key position in the Keysheet module very and bad.Test when the LCD display module is mainly used in and repairs, when using this module, with the concrete test data that shows on the lcd screen, as non-defective unit whether, and the place that problem occurs when test duration, bad product, the break-make of nation's line and short circuit wait represents test result.
In the present embodiment, owing to comprise LED display module and LCD display module, thus can switch with the purpose of test according to the actual needs, thus the convenience of operation improved.
Embodiment seven:
In the present embodiment, an also built-in power supply regulating filtering module that is connected respectively with main control module, analogue-key module and display module in the Keysheet module proving installation, its circuit diagram as shown in Figure 3, power supply voltage stabilizing IC is U2PAK paster encapsulation 78M05, for total system provides+5V voltage, circuit is very simple.Though the input power range that provides in the device handbook is 8～36V, damage and consider the heat radiation factor for fear of thermal power, the voltage of adding had better not be higher than 15V.For preventing that operating personnel's reversal connection power supply from causing tester to be burnt, add a diode D2 that model is IN4001.
Additionally add several 104 patch capacitor groups in addition in the circuit, as shown in Figure 4, these capacitance group are arranged in each IC near the power interface place, its objective is that suppressing the high frequency clutter sneaks into power circuit, improves the Electro Magnetic Compatibility of justifying.
In the present embodiment, by adding built-in power supply regulating filtering module, can reduce the influence that the external power source fluctuation brings tester stability.
The utility model embodiment has solved the low problem of testing efficiency that exists in the existing Keysheet module measuring technology by replace the design of artificial button with analogue-key, can effectively improve the efficient of test.
The above only is of the present utility model preferable, not in order to restriction the utility model, all any modifications of being done within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a Keysheet module proving installation is characterized in that, described Keysheet module proving installation comprises:
Main control module;
Select module with described main control module test command that be connected, that accept main control module and to many connecting plates of main control module feedback test key coding signal;
With the order of described main control module analogue-key that be connected, that accept main control module operation and feed back the analogue-key module of key bit code value to be measured to main control module;
The display module that is connected with described main control module, show the main control module test result data.
2. Keysheet module proving installation as claimed in claim 1 is characterized in that, described main control module comprises that model is the microprocessor of the single-chip microcomputer of AVR MEGA16.
3. Keysheet module proving installation as claimed in claim 1 is characterized in that, described many connecting plates select modules comprise PS 2 interfaces and USB interface.
4. Keysheet module proving installation as claimed in claim 3 is characterized in that, described PS 2 interfaces comprise that model is the 16 tunnels analogy switches of CD4052.
5. Keysheet module proving installation as claimed in claim 3 is characterized in that, described USB interface comprises that model is the high effectively four bus line buffer gate of three-state output of 74LS125.
6. Keysheet module proving installation as claimed in claim 1 is characterized in that, described analogue-key module comprises the semiconducter simulation selector switch;
Described semiconducter simulation selector switch comprises 16 tunnels analogy switches and 8 tunnels analogy switches.
7. Keysheet module proving installation as claimed in claim 6 is characterized in that, the model of described 16 tunnels analogy switches is CD4051, and the model of described 8 tunnels analogy switches is CD4067.
8. Keysheet module proving installation as claimed in claim 1 is characterized in that, described display module comprises LED display module and LCD display module.
9. Keysheet module proving installation as claimed in claim 1 is characterized in that, described Keysheet module proving installation comprises the power supply regulating filtering module that is connected respectively with described main control module, described analogue-key module and described display module;
Described power supply regulating filtering module comprises some 104 patch capacitor groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020277713XU CN201780573U (en) | 2010-07-30 | 2010-07-30 | Test device of keyboard modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020277713XU CN201780573U (en) | 2010-07-30 | 2010-07-30 | Test device of keyboard modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780573U true CN201780573U (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020277713XU Expired - Fee Related CN201780573U (en) | 2010-07-30 | 2010-07-30 | Test device of keyboard modules |
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| CN (1) | CN201780573U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137112A (en) * | 2013-02-28 | 2013-06-05 | 吟飞科技(江苏)有限公司 | Test system of electronic organ keyboard functions |
| CN103197239A (en) * | 2013-03-14 | 2013-07-10 | 吟飞科技(江苏)有限公司 | Testing system of function buttons and indicator lights of electronic organ |
| CN107315665A (en) * | 2017-06-07 | 2017-11-03 | 深圳市鼎盛光电有限公司 | The detection method and its device of a kind of multimedia board |
| CN107329862A (en) * | 2017-06-19 | 2017-11-07 | 北京小米移动软件有限公司 | Detection method, device and the terminal of keyboard |
-
2010
- 2010-07-30 CN CN201020277713XU patent/CN201780573U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137112A (en) * | 2013-02-28 | 2013-06-05 | 吟飞科技(江苏)有限公司 | Test system of electronic organ keyboard functions |
| CN103197239A (en) * | 2013-03-14 | 2013-07-10 | 吟飞科技(江苏)有限公司 | Testing system of function buttons and indicator lights of electronic organ |
| CN107315665A (en) * | 2017-06-07 | 2017-11-03 | 深圳市鼎盛光电有限公司 | The detection method and its device of a kind of multimedia board |
| CN107329862A (en) * | 2017-06-19 | 2017-11-07 | 北京小米移动软件有限公司 | Detection method, device and the terminal of keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20110730 |