CN203643544U - Testing device for matrix key logic relations - Google Patents
Testing device for matrix key logic relations Download PDFInfo
- Publication number
- CN203643544U CN203643544U CN201320792951.8U CN201320792951U CN203643544U CN 203643544 U CN203643544 U CN 203643544U CN 201320792951 U CN201320792951 U CN 201320792951U CN 203643544 U CN203643544 U CN 203643544U
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- 239000011159 matrix material Substances 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 6
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a testing device for matrix key logic relations. The testing device comprises a +5 V power supply, multiple groups of input plugging elements which are connected parallelly, and multiple groups of output plugging elements which are connected parallelly, wherein each group of input plugging elements comprises an LED indication lamp, an input resistor, an input port which are connected in sequence, and each group of output plugging elements comprises an output port, an LED indication lamp, and an output resistor which are connected in sequence; the input port and the output port are connected with corresponding ports of the matrix key, the +5 V power supply is connected to the input port through the LED indication lamp and the input resistor of the input plugging element, and the output port is connected back to the power ground through the LED indication lamp and the output resistor of the output plugging element.
Description
Technical field
The utility model relates to a kind of electronic circuit test device, in particular a kind of proving installation of matrix press-key logical relation.
Background technology
Existing matrix form button logical relation test adopts and pushes button successively, uses the Test Diode gear of multimeter to measure the break-make of the extension line of respective keys, to judge that whether button logical relation is correct simultaneously.Existing proving installation operation is more loaded down with trivial details, because the plug-in unit lead pin pitch of extension line is less, uses the test pencil measurement of multimeter to have certain difficulty.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of proving installation of matrix press-key logical relation is provided, and test is simple.
The utility model is achieved through the following technical solutions, comprise+5V of the utility model power supply, organize input plug-in unit in parallel more and organize output inserter in parallel more, every group of input plug-in unit comprises the LED light, input resistance and the input interface that connect successively, and every group of output inserter comprises the output interface, LED light and the output resistance that connect successively; Input interface and output interface be the corresponding interface of connection matrix button respectively, described+5V power supply enters input interface after by the input LED light of plug-in unit and input resistance, after the LED light of output interface by output inserter and output resistance, gets back to power ground.
As one of optimal way of the present utility model, described input plug-in unit and output inserter respectively have six groups.
The utility model has the following advantages compared to existing technology: the utility model is simple in structure, easy to operate, there will be bright state by corresponding LED light, thereby realizes the test accurately to button logical relation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the wiring schematic diagram of matrix press-key;
Fig. 3 is LED light corresponding logical relationship figure in Fig. 1.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under take technical solutions of the utility model as prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, comprise+5V of the present embodiment power supply, the input plug-in unit 1 of six groups of parallel connections and the output inserter 2 of six groups of parallel connections, every group of input plug-in unit 1 comprises the LED light, input resistance and the input interface that connect successively, the LED light of the input plug-in unit 1 of six groups of parallel connections is respectively D11～D16, input resistance is R1～R6, and input interface is Y1～Y6; Every group of output inserter 2 comprises the output interface, LED light and the output resistance that connect successively, and the LED light of the output inserter 2 of six groups of parallel connections is respectively D21～D26, and output resistance is R7～R12, and output interface is X1～X6; As shown in Figure 2, in matrix press-key, having respectively six input interfaces is Y1～Y6, six output interfaces of matrix press-key are X1～X6, the input interface of input plug-in unit 1 and output inserter 2 is connected respectively interface corresponding in matrix press-key to be measured with output interface, described+5V power supply enters input interface Y1～Y6 after by the input LED light D11～D16 of plug-in unit 1 and input resistance R1～R6, after the LED light D21～D26 of output interface X1～X6 by output inserter 2 and output resistance R7～R12, gets back to power ground.Corresponding electric capacity of parallel connection in each LED light, shunt capacitance C1～C6 successively on LED light D11～D16, shunt capacitance C7～C12 successively on LED light D21～D26.
When button is not pressed, LED light no current passes through, therefore all LED light are the state of " going out ", in the time having button to press, in the wiring X1～X6 of button one can with Y1～Y6 in the relation that is short-circuited, now corresponding LED light there will be the state of " bright ", and whether the corresponding relation in the state by LED light and Fig. 3 in logical table is correct, thereby reaches the test purpose of button logical relation.
Claims (2)
1. the proving installation of a matrix press-key logical relation, it is characterized in that, comprise+5V power supply, organize input plug-in unit (1) in parallel and many groups output inserter (2) in parallel more, every group of input plug-in unit (1) comprises the LED light, input resistance and the input interface that connect successively, and every group of output inserter (2) comprises the output interface, LED light and the output resistance that connect successively; Input interface and output interface be the corresponding interface of connection matrix button respectively, after the LED light of described+5V power supply by input plug-in unit (1) and input resistance, enter input interface, after the LED light of output interface by output inserter (2) and output resistance, get back to power ground.
2. the proving installation of matrix press-key logical relation according to claim 1, is characterized in that, described input plug-in unit (1) and output inserter (2) respectively have six groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792951.8U CN203643544U (en) | 2013-12-04 | 2013-12-04 | Testing device for matrix key logic relations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792951.8U CN203643544U (en) | 2013-12-04 | 2013-12-04 | Testing device for matrix key logic relations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643544U true CN203643544U (en) | 2014-06-11 |
Family
ID=50874779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320792951.8U Expired - Lifetime CN203643544U (en) | 2013-12-04 | 2013-12-04 | Testing device for matrix key logic relations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643544U (en) |
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2013
- 2013-12-04 CN CN201320792951.8U patent/CN203643544U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 241000 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Patentee after: Avic Huadong Photoelectric Address before: 230001 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui Patentee before: Avic Huadong Photoelectric |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |