CN203366580U - Piano learning machine adopting double-color nixie tubes to realize key indicator lights - Google Patents
Piano learning machine adopting double-color nixie tubes to realize key indicator lights Download PDFInfo
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- CN203366580U CN203366580U CN 201320469507 CN201320469507U CN203366580U CN 203366580 U CN203366580 U CN 203366580U CN 201320469507 CN201320469507 CN 201320469507 CN 201320469507 U CN201320469507 U CN 201320469507U CN 203366580 U CN203366580 U CN 203366580U
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Abstract
The utility model discloses a piano learning machine adopting double-color nixie tubes to realize key indicator lights. The piano learning machine comprises a master controller, a display control circuit, a control unit and a key indicator light group, and a display unit, and is characterized in that the key indicator light group consists of a plurality of double-color nixie tubes which can display two different colors, each double-color nixie tube corresponds to a key of a piano, and the plurality of double-color nixie tubes are connected with the display control circuit. The double-color nixie tubes can display two different colors, and can thus display numbers of two different colors (such as common red and green) in a frame of the same nixie tube. The display method has the following beneficial effects that firstly, the numbers are large in size and can be seen clearly; and secondly, the position of one key only needs one double-color nixie tube, and each nixie tube can be placed at the center in the position of a corresponding key and thus cannot be seen inaccurately.
Description
Technical field
The utility model relates to a kind of piano learning machine, relates in particular to a kind of piano learning machine that adopts the dual-colour digital code pipe to realize the key pilot lamp.
Background technology
The Chinese utility model patent that the patent No. is ZL201120098618.8 discloses a kind of piano learning machine, its each key pilot lamp is comprised of " five luminescent devices that each is pointed corresponding to left hand one by one and five luminescent devices respectively pointing corresponding to the right hand one by one ", is exactly in fact each 5 light emitting diodes of red, green two kinds of colors.When red luminotron is bright, prompting removes to play key with left hand, when green luminotron is bright, prompting removes to play key with the right hand, which luminotron is bright, illuminate the pad pasting that is printed with numeral " 1,2,3,4,5 " on it, just demonstrate these numerals, thereby prompting removes to play this key with that finger.Such key pilot lamp has such two shortcomings:
1, the numeral shown is too little, for auld user, seems that some is painstaking;
2, numeral " 1,2,3,4,5 " is printed in the limited position of key, can not allow each digital position can both be placed in the middle, often position is seen and is biased to adjacent key.
Charactron common on market all only shows a kind of color, and the key pilot lamp of piano learning machine needs to show two kinds of colors.If adopt two charactrons that show different colours to realize the key pilot lamp, not only position fails to lay down, and cost is also higher.
The utility model content
The purpose of this utility model is to provide a kind of piano learning machine that adopts the dual-colour digital code pipe to realize the key pilot lamp, and the key indication is clear, and conserve space, reduce costs.
The utility model adopts following technical proposals: a kind of piano learning machine that adopts the dual-colour digital code pipe to realize the key pilot lamp, comprise master controller, display control circuit, control unit and key pilot lamp group, display unit, described key pilot lamp group is a plurality of dual-colour digital code pipes that can show two kinds of different colours, each dual-colour digital code pipe is a key of corresponding piano respectively, and a plurality of dual-colour digital code Guan Junyu display control circuits connect.
Described dual-colour digital code pipe has seven pins, the DP pin that shows stroke and controls two pins that show different colours, seven strokes have respectively been placed the light emitting diode together with two anodic bondings with the DP place, these two diode displaying different colours, show that the negative electrode of the light emitting diode of same color connects.
Described dual-colour digital code pipe has seven pins, the DP pin that shows stroke and controls two pins that show different colours, two light emitting diodes that negative electrode links together have respectively been placed at seven strokes and DP place, these two diode displaying different colours, the anodic bonding of the light emitting diode of demonstration same color.
Described a plurality of dual-colour digital code pipe directly is connected with display control circuit or matrix connects.
The utility model adopts the dual-colour digital code pipe to realize the key pilot lamp, and the dual-colour digital code pipe can show two kinds of different colors, like this, in the framework of same charactron, can demonstrate the numeral of 2 kinds of different colours (such as common red and green).This display mode has following beneficial effect: be at first that numeral is large, see too clearly; Next is that the position of a key only needs a dual-colour digital code pipe, conserve space, and each charactron can be placed between two parties in the position of corresponding key, therefore can not see partially; And cost is lower.
The accompanying drawing explanation
The structural representation that Fig. 1 is the dual-colour digital code pipe;
The schematic diagram that Fig. 2 is the dual-colour digital code pipe.
Embodiment
The utility model discloses a kind of piano learning machine that adopts the dual-colour digital code pipe to realize the key pilot lamp, comprise master controller, display control circuit, control unit and key pilot lamp group, display unit, described key pilot lamp group is a plurality of dual-colour digital code pipes that can show two kinds of different colours, and a plurality of dual-colour digital code pipes are connected with display control circuit.A key pilot lamp only needs a dual-colour digital code pipe, and each dual-colour digital code pipe is a key of corresponding piano respectively.
As shown in Figure 1, be the structural representation of dual-colour digital code pipe, there is no difference with the charactron that only shows a kind of color in appearance, be also that seven strokes and a radix point DP are arranged.
As shown in Figure 2, described dual-colour digital code pipe has seven pins showing stroke (10,9,7,5,4,2,, 1), DP pin (6) and controls two pins (8,3) of demonstration different colours, seven strokes (A, B, C, D, E, F, G) and radix point (DP) have located respectively to place two anodic bonding light emitting diode SR, YG together, these two diode displaying different colours (such as common red and green), and the negative electrode that shows the light emitting diode of same color be connected (common cathode).The dual-colour digital code pipe can also connect by the common anode utmost point.
Described a plurality of dual-colour digital code pipe directly is connected with display control circuit or matrix connects.Matrix connects the pin of 7 strokes that refer to a plurality of dual-colour digital code pipes, all be connected to together, receive 7 pins that display control circuit is corresponding, two pins of the control different colours of a plurality of dual-colour digital code pipes, access respectively the different pins that display control circuit is corresponding.Each pin that direct connection is each dual-colour digital code pipe directly connects the pin that display control circuit is corresponding.
If the dual-colour digital code pipe is to show redness and green, can in shiny red, point out the user to remove to play key with left hand, in the time of bright green, prompting removes to play key with the right hand, demonstrates which numeral (1,2,3,4 or 5), just which finger to remove to play this key with.Numeral is large, sees too clearly; Next is that the position of a key only needs a dual-colour digital code pipe, and each charactron can be placed between two parties in the position of corresponding key, therefore can not see partially.
Claims (4)
1. a piano learning machine that adopts the dual-colour digital code pipe to realize the key pilot lamp, comprise master controller, display control circuit, control unit and key pilot lamp group, display unit, it is characterized in that: described key pilot lamp group is a plurality of dual-colour digital code pipes that can show two kinds of different colours, each dual-colour digital code pipe is a key of corresponding piano respectively, and a plurality of dual-colour digital code Guan Junyu display control circuits connect.
2. employing dual-colour digital code pipe according to claim 1 is realized the piano learning machine of key pilot lamp, it is characterized in that: described dual-colour digital code pipe has seven pins, the DP pin that shows stroke and controls two pins that show different colours, seven strokes have respectively been placed the light emitting diode together with two anodic bondings with the DP place, these two diode displaying different colours, show that the negative electrode of the light emitting diode of same color is connected.
3. employing dual-colour digital code pipe according to claim 1 is realized the piano learning machine of key pilot lamp, it is characterized in that: described dual-colour digital code pipe has seven pins, the DP pin that shows stroke and controls two pins that show different colours, two light emitting diodes that negative electrode links together have respectively been placed at seven strokes and DP place, these two diode displaying different colours, show that the anode of the light emitting diode of same color is connected.
4. employing dual-colour digital code pipe according to claim 1 and 2 is realized the piano learning machine of key pilot lamp, it is characterized in that: described a plurality of dual-colour digital code pipes directly are connected with display control circuit or matrix connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320469507 CN203366580U (en) | 2013-08-02 | 2013-08-02 | Piano learning machine adopting double-color nixie tubes to realize key indicator lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320469507 CN203366580U (en) | 2013-08-02 | 2013-08-02 | Piano learning machine adopting double-color nixie tubes to realize key indicator lights |
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| CN203366580U true CN203366580U (en) | 2013-12-25 |
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| CN 201320469507 Expired - Fee Related CN203366580U (en) | 2013-08-02 | 2013-08-02 | Piano learning machine adopting double-color nixie tubes to realize key indicator lights |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778821A (en) * | 2014-03-03 | 2014-05-07 | 罗淑文 | Music score and fingering electronic lamplight analog display method and keyboard instrument auxiliary teaching device |
| CN107424585A (en) * | 2017-08-01 | 2017-12-01 | 广州丰谱信息技术有限公司 | A kind of digital qin companion based on expansion numbered musical notation |
-
2013
- 2013-08-02 CN CN 201320469507 patent/CN203366580U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778821A (en) * | 2014-03-03 | 2014-05-07 | 罗淑文 | Music score and fingering electronic lamplight analog display method and keyboard instrument auxiliary teaching device |
| CN103778821B (en) * | 2014-03-03 | 2017-02-08 | 罗淑文 | Music score and fingering electronic lamplight analog display method and keyboard instrument auxiliary teaching device |
| CN107424585A (en) * | 2017-08-01 | 2017-12-01 | 广州丰谱信息技术有限公司 | A kind of digital qin companion based on expansion numbered musical notation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |