CN2270253Y - Holographic visual demonstration device for staff - Google Patents
Holographic visual demonstration device for staff Download PDFInfo
- Publication number
- CN2270253Y CN2270253Y CN 96206682 CN96206682U CN2270253Y CN 2270253 Y CN2270253 Y CN 2270253Y CN 96206682 CN96206682 CN 96206682 CN 96206682 U CN96206682 U CN 96206682U CN 2270253 Y CN2270253 Y CN 2270253Y
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- Prior art keywords
- key
- staff
- tongue tube
- teaching
- connects
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000007 visual effect Effects 0.000 title 1
- 238000007789 sealing Methods 0.000 claims description 5
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 238000001093 holography Methods 0.000 claims 1
- 230000001174 ascending effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- Electrophonic Musical Instruments (AREA)
Abstract
A holographic teaching device for audio-visual display of staff is composed of teaching board with teaching keyboard and teaching staff, sensor, LED, digital circuit and power supply.
Description
The utility model is the holographic teaching apparatus directly perceived of a kind of staff, belongs to the music teaching instrument field.
In music teaching, the teacher is playing when explanation, can't make the student can obtain information such as the position of piano key of note and pitch again intuitively when hearing music, causes looking in teaching, listens and disconnect, the teacher often hurries back and forth between dried musical instrument and the blackboard, has increased teacher's working strength simultaneously.For a change this situation, existing multiple music teaching demonstration instrument in the prior art, Chinese patent 87204804 discloses a kind of " Multi-Function Keyboard staff demonstration lesson device " by the staff table, the position of piano key planimetric map, keyboard, electronic line component is formed, its control circuit comprises the sound equipment oscillator, tone selector, stave tone mark display, stave change of tune position display, the volume by-pass cock, the tone selector switch, loudspeaker etc., can intuitively show position of piano key, pitch, tone mark etc., but it partly includes sound equipment in device, make complex structure, sound equipment loses former musical instrument effect, display mode is single, and signal not tool flows and static randomness.
The utility model is at the above-mentioned deficiency of prior art, provide a kind of staff that can be hinged with easily with any key musical instrument holographic teaching apparatus directly perceived, it can show position of piano key, pitch, chord and modified tone, the energy FLOW VISUALIZATION, and allow music score stay on the demonstrator at any time, carry out intuitively, vivo teaching.
The technical solution of the utility model is:
The holographic teaching apparatus directly perceived of this staff is made up of demonstrator, sensor, light emitting diode, digital circuit and power supply, and keyboard teaching figure and staff teaching figure are arranged on the demonstrator.The utility model is made sensor with magnet and tongue tube, utilizes the magnetic field of magnet to connect reed switch circuit and realizes sensing, and magnet sticks at each key bottom, and tongue tube is contained on keyboard board and the every corresponding position of magnet, leaves distance between magnet and tongue tube.Light emitting diode is embedded on the demonstrator between the corresponding line of each note of staff on the position and keys of keyboard position as display.Musical instrument key and corresponding light emitting diode are gone here and there out shift register and are connected with sealing in by the modified tone display circuit.
This installs each tongue tube sensing input lead and connects power source bus, and the sensing output lead is connected with corresponding key light emitting diode among the keyboard teaching figure.The tongue tube output lead of all white keys all picks out branch line and connects to seal in and go here and there out shift register corresponding D IS end input signal, after register signal is handled, by corresponding D P end output signal, connects corresponding light emitting diode on the staff again.Sealing in this device gone here and there out shift register and also is connected on the pulse oscillator by a switch and is used to produce shift pulse, and pulse oscillator is made up of gate circuit and RC charge-discharge circuit.Make the bright spot on the staff produce displacement left, and can make bright spot stop mobile remaining on the demonstrator by stopcock.
The utility model is in order to solve the problem that black key ascending, descending semitone shows, design a modified tone display circuit, by three-position switch, form with door, isolating diode etc., the output lead of each black key tongue tube is all told a branch road and is connect a three-position switch, each black key relates to two and door, their output connects behind the isolating diode bifurcation road more respectively, one branch road is contacted and one is isolated a contact that connects three-position switch behind the second tube sheet, and another branch road connects the sensing output terminal branch road of the white key tongue tube adjacent with this black key; Each is corresponding respectively with an input end of door to connect black key and rises or flat bus, two of relating to of each black key with between be connected the 3rd contact of black key three-position switch jointly by their another input end, establish a zero setting resistance between this contact and the ground.Black key liter or flat bus are derived between the line with power supply and are connected with three-position switch, establish a zero setting resistance between bus and the ground.
Between magnet of this device and the tongue tube certain distance is arranged, magnetic field is connected reed switch circuit and is not exerted an influence when not according to key, and when pressing key, magnet does not contact tongue tube, but magnetic field can make the tongue tube contact connect.
After circuit of the present utility model is concentrated and to be adorned dried demonstrator, pulse switch and modified tone display circuit concentrate and be loaded on the plate, place near musical instrument, it and demonstrator are connected by lead, sensor can join with any key pan musical instrument.Device mode of the present utility model also can be decided according to actual conditions.
Position of piano key, the pitch that not only can show note by the holographic object teaching device of above this staff of design, can also show chord with several bright spots that different scale positions go out out simultaneously, realize the demonstration that modifies tone by the modified tone display circuit, bright spot on this device staff can be carried out speed or need mobile from right to left side by teaching by music, until shifting out teaching board, and can allow music score stop to move at any time, stay in demonstrator so that teaching.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the utility model fundamental diagram;
Fig. 2 is the utility model digital circuit connection layout;
Fig. 3 is the utility model modified tone display circuit connection layout;
Fig. 4 is the utility model keyboard teaching figure light emitting diode mounting plane figure;
Fig. 5 is the utility model staff teaching figure light emitting diode mounting plane figure;
Fig. 6 is the mounting structure figure of the utility model musical instrument key and sensor.
Principle of work of the present utility model as shown in Figure 1, the signal of musical instrument key is through the key sensing, be distributed to signal in the digital circuit and keyboard teaching figure on, send into again among the staff teaching figure through the signal that digital circuit was handled, realization is demonstrated.The installation of sensor of the present utility model as shown in Figure 6, magnet 2 sticks at the bottom of each key, tongue tube 3 is contained in keyboard board and corresponds on the position of every block of magnet 2, the distance that leaves of magnet 2 and tongue tube 3, power source bus L connects the input lead of tongue tube, and output lead is outwards sent signal, when key 1 is pressed, magnet 2 is near tongue tube 3, and its contact is sent transducing signal because the effect in magnetic field is connected.The installation of the LED that shows as signal is embedded between the line of staff on the demonstrator in each position of piano key on the position and keyboard teaching figure as shown in Figure 4 and Figure 5.
The all sensing output leads (y) of the utility model all are connected with corresponding LED among the keyboard teaching figure, and the output lead of all white keys all picks out a branch line (x) and connects to seal in and go here and there out shift register, as Fig. 3 and shown in Figure 2, respectively by corresponding D IS end input high level, go here and there out after shift register handles through sealing in, respectively by corresponding D P end output high level, connect corresponding LED on the staff then again.Seal in and go here and there out shift register 4 also by pulse oscillator 5 of switch 6 connections, produce the shift pulse signal, it is made up of gate circuit and RC charge-discharge circuit, pulse oscillator 5 is gone here and there out shift register 4 actings in conjunction and is made the bright spot on the staff produce displacement from right to left with sealing in, switch 6 can turn-off pulse oscillator 5, and bright spot is stayed on the demonstrator.
The utility model has also designed modified tone display circuit as shown in Figure 3 for solving the problem that black key ascending, descending semitone shows, the output lead of each black key tongue tube 3 all divides a branch road to meet a three-position switch K
1, every black key relate to two with door 7 and 8, be connected isolating diode 9 and 10 with door 7 respectively with 8 output, and then the bifurcation road, after a branch road is connected in series isolating diode 17 and 18 again, meet three-position switch K
1A contact 13 and 11, another branch road connects the sensing output terminal branch road of the white key tongue tube adjacent with this black key.With one of door 7 input termination black key flats bus 11, rise semitone bus 1s with an input termination black key of door 8, meet three-position switch K again after joining with another input ends of door 7 and 8
1The 3rd contact 12.Black key rises semitone bus 1
SAnd use three-position switch K between black key flats bus 1J and the power lead
2Connect.This modified tone display circuit can be realized all black key ascending, descending semitones are shown simultaneously, also can realize the demonstration that indivedual black key liters (falling) semitone is shown.For example: when all black keys show that needing to rise semitone shows, three-position switch K among the figure
1Should connect three-position switch K with contact 12
2Connect with contact 14; When all black keys need flats, three-position switch K
1Connect with contact 12, and three-position switch K
2With touch 16 and connect; When indivedual black keys need rise the demonstration of demonstration (or falling) semitone, can be with three-position switch K
2Contact head 15, three-position switch K
1Make contact 11 or contact 13 respectively.
Claims (6)
1. the holographic teaching apparatus directly perceived of a staff, form by demonstrator, sensor, light emitting diode, digital circuit and power supply, keyboard teaching figure and staff teaching figure are arranged on the demonstrator, it is characterized in that sensor is made up of magnet and tongue tube, magnet sticks at each key bottom, tongue tube is contained on keyboard board and the every corresponding position of magnet, leaves distance between magnet and tongue tube; All be embedded with light emitting diode on each position of piano key of position and keyboard teaching figure between the corresponding line of each note on the staff of demonstrator, corresponding light emitting diode was met the modified tone display circuit and is gone here and there out shift register and be connected with sealing on key and the demonstrator.
2. staff holography according to claim 1 is teaching apparatus intuitively, it is characterized in that the sensing input lead energized bus of each tongue tube, and the sensing output lead is connected with corresponding key light emitting diode among the keyboard teaching figure.
3. the holographic teaching apparatus directly perceived of staff according to claim 1, the tongue tube output lead that is characterised in that all white keys all picks out a branch line and connects to seal in and go here and there out shift register corresponding D IS end input signal, corresponding D P holds output signal, connects corresponding light emitting diode on the staff again.
4. the holographic teaching apparatus directly perceived of staff according to claim 1, its feature is being done the AND circuit that described modified tone display circuit is formed by three-position switch, with door, isolating diode etc., its annexation is: the output lead of each black key tongue tube all connects a three-position switch, each black key relates to two and door, their output is connected in series behind the isolating diode bifurcation road more respectively, one branch road is connected in series a contact that connects three-position switch behind the isolating diode again, and another branch road connects the sensing output terminal branch road of the white key tongue tube adjacent with this black key; Each corresponding respectively black key that connects with an input end of door rises or flat bus, between two of relating to of each black key and the door by two with another input end be connected the 3rd contact of black key three-position switch jointly, this contact is with establishing a zero setting resistance with ground, black key rise or flat bus and power lead between is connected with three-position switch, establish a zero setting resistance between black key liter or flat bus and the ground.
5. the holographic teaching apparatus directly perceived of staff according to claim 1 is characterized in that in addition that a pulse oscillator connects to seal in by switch to go here and there out shift register that it is made up of gate circuit and RC charge-discharge circuit.
6. the holographic teaching apparatus directly perceived of staff according to claim 1, it is characterized in that the distance between magnet and the tongue tube is when not according to key, magnetic field is connected reed switch circuit and is not exerted an influence, though and magnet does not contact tongue tube when pressing key, the tongue tube contact can be connected under the action of a magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96206682 CN2270253Y (en) | 1996-03-28 | 1996-03-28 | Holographic visual demonstration device for staff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96206682 CN2270253Y (en) | 1996-03-28 | 1996-03-28 | Holographic visual demonstration device for staff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2270253Y true CN2270253Y (en) | 1997-12-10 |
Family
ID=33891217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96206682 Expired - Fee Related CN2270253Y (en) | 1996-03-28 | 1996-03-28 | Holographic visual demonstration device for staff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2270253Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028265A (en) * | 2012-12-20 | 2013-04-10 | 浙江理工大学 | Color teaching light toy based on natural interaction |
-
1996
- 1996-03-28 CN CN 96206682 patent/CN2270253Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028265A (en) * | 2012-12-20 | 2013-04-10 | 浙江理工大学 | Color teaching light toy based on natural interaction |
| CN103028265B (en) * | 2012-12-20 | 2015-04-22 | 浙江理工大学 | Color teaching light toy based on natural interaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |