CN201216011Y - Microphone capable of tracking sound - Google Patents
Microphone capable of tracking sound Download PDFInfo
- Publication number
- CN201216011Y CN201216011Y CNU2008201197962U CN200820119796U CN201216011Y CN 201216011 Y CN201216011 Y CN 201216011Y CN U2008201197962 U CNU2008201197962 U CN U2008201197962U CN 200820119796 U CN200820119796 U CN 200820119796U CN 201216011 Y CN201216011 Y CN 201216011Y
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- CN
- China
- Prior art keywords
- microphone
- circuit
- sound
- motor
- comparison circuit
- Prior art date
- 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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Abstract
The utility model discloses a microphone which can trace sound, and comprises a microphone, a sound sensor, a microphone frame, a control circuit, a motor and a lifting driving device of the microphone frame, wherein the control circuit comprises an A/D conversion circuit, a comparison circuit and a driving circuit, the upper portion and the lower portion of the microphone are respectively equipped with a sound sensor, the sound sensors on the upper portion and the lower portion are respectively connected with an input end of an A/D conversion clip, the A/D conversion clip converts simulation audio signals into digital signals to output to the comparison circuit, the comparison circuit compares the audio signals which are picked up by the sound sensors on the upper portion and the lower portion, then a comparison result is output to the driving circuit, the driving circuit controls the motor to rotate, and the lifting driving device of the microphone frame is controlled to work through that the motor rotates. The microphone has simple circuit, reasonable design and low cost, can conveniently control a microphone support frame to rise or drop along with sound source through that the sound source is higher or lower than the microphone.
Description
Technical field
The utility model relates to a kind of control circuit, specifically, relates to a kind of microphone of controlling along with the height rising of sound generation source or the control circuit that descends.
Background technology
At present before the lights, performing artist or speaker run into the inappropriate situation of microphone height through regular meeting, and manual adjustment had not only bothered, but also influenced performing effect, if the height of microphone can rise along with the height of sound generation source or descend, then can improve the whole structure of performance.
The utility model content
A kind of microphone that can follow the trail of sound that the utility model designs in order to solve the problems of the technologies described above just.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of microphone that can follow the trail of sound comprises microphone, sound transducer, microphone stand, control circuit, motor and microphone stand lifting drive.Control circuit comprises A/D change-over circuit, comparison circuit and drive circuit; At microphone a sound transducer is installed respectively up and down, sound transducer links to each other with the input of A/D conversion chip respectively up and down, the A/D conversion chip is converted to digital signal with simulated audio signal and exports to comparison circuit, comparison circuit compares upper and lower sound transducer picked up audio signals, then comparative result is exported to drive circuit, drive circuit control motor rotates, and rotates the work of control microphone stand lifting drive by motor.When sound source was higher than microphone, the sound value of last sound transducer will be bigger, and motor will just change, and microphone just can rise; When sound source was lower than microphone, the sound value of following sound transducer will be bigger, and motor will reverse, and microphone just can descend; When sound source was suitable with the microphone height, the difference of two sound transducers will be very little, and motor will stop.
The described a kind of microphone that can follow the trail of sound, its A/D change-over circuit is made of 0809 chip and peripheral circuit thereof; Its comparison circuit is made of 89c51 single-chip microcomputer and peripheral circuit thereof; Its power supply adopts the external dc power power supply.
The beneficial effects of the utility model are that its circuit is simple, reasonable in design, cost is low, can control microphone holder easily and follow sound source or liter or fall.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model theory diagram.
Fig. 3 is the utility model A/D change-over circuit schematic diagram.
Fig. 4 is the utility model comparison circuit schematic diagram.
Fig. 5 is the utility model drive circuit schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Shown in Fig. 1,2,3,4 and 5, a kind of microphone that can follow the trail of sound of the utility model comprises microphone 5, sound transducer 6,7, microphone stand 1, control circuit 4, motor and microphone stand lifting drive 3.Control circuit 4 comprises A/D change-over circuit, comparison circuit and drive circuit; At microphone 5 sound transducer 6,7 is installed respectively up and down, sound transducer 6,7 links to each other with the input of A/D conversion chip respectively up and down, the A/D conversion chip is converted to digital signal with simulated audio signal and exports to comparison circuit, comparison circuit compares upper and lower sound transducer 6,7 picked up audio signals, then comparative result is exported to drive circuit, drive circuit control motor rotates, and rotates the 1 lifting drive work of control microphone stand by motor.
The described a kind of microphone that can follow the trail of sound, its A/D change-over circuit is made of 0809 chip and peripheral circuit thereof; Its comparison circuit is made of 89c51 single-chip microcomputer and peripheral circuit thereof; Its power supply adopts the external dc power power supply.
The adjusting of microphone height need realize by the lifting of microphone holder, can transform by the camera mount of hand control lifting, wind is taken off, a DC motor is fixing on the top of the shelf, make motor be connected to liftable bar place, thereby replaced the effect of wind, microphone is contained in a top of the trellis by gear, respectively load onto a sound transducer at the two ends up and down of microphone again, the making of support is finished substantially.
The utility model is not limited to above-mentioned preferred forms, and other any identical with the utility model or akin products that anyone draws under enlightenment of the present utility model all drop within the protection range of the present utility model.
Claims (4)
1, a kind of microphone that can follow the trail of sound comprises microphone (5), sound transducer (6,7), microphone stand (1), control circuit (4), motor and microphone stand lifting drive (3); It is characterized in that: control circuit (4) comprises A/D change-over circuit, comparison circuit and drive circuit; At microphone (5) sound transducer (6,7) is installed respectively up and down, up and down sound transducer (6,7) respectively the input with the A/D conversion chip link to each other, the A/D conversion chip is converted to digital signal with simulated audio signal and exports to comparison circuit, comparison circuit compares upper and lower sound transducer (6,7) picked up audio signals, then comparative result is exported to drive circuit, drive circuit control motor rotates, and rotates the lifting drive work of control microphone stand (1) by motor.
2, a kind of microphone that can follow the trail of sound according to claim 1, it is characterized in that: the A/D change-over circuit is made of 0809 chip and peripheral circuit thereof.
3, a kind of microphone that can follow the trail of sound according to claim 1, it is characterized in that: comparison circuit is made of 89c51 single-chip microcomputer and peripheral circuit thereof.
4, a kind of microphone that can follow the trail of sound according to claim 1 is characterized in that: power supply adopts the external dc power power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201197962U CN201216011Y (en) | 2008-06-27 | 2008-06-27 | Microphone capable of tracking sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201197962U CN201216011Y (en) | 2008-06-27 | 2008-06-27 | Microphone capable of tracking sound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201216011Y true CN201216011Y (en) | 2009-04-01 |
Family
ID=40521216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201197962U Expired - Fee Related CN201216011Y (en) | 2008-06-27 | 2008-06-27 | Microphone capable of tracking sound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201216011Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826173A (en) * | 2014-02-20 | 2014-05-28 | 上海理工大学 | Voice-tracking microphone and control method of voice-tracking microphone |
| WO2014079003A1 (en) * | 2012-11-21 | 2014-05-30 | 齐晓燕 | Automatically adjusting microphone |
| CN110221628A (en) * | 2019-06-20 | 2019-09-10 | 吉安职业技术学院 | A kind of microphone that single-chip microcontroller control is automatically moved with sound source |
-
2008
- 2008-06-27 CN CNU2008201197962U patent/CN201216011Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079003A1 (en) * | 2012-11-21 | 2014-05-30 | 齐晓燕 | Automatically adjusting microphone |
| CN103826173A (en) * | 2014-02-20 | 2014-05-28 | 上海理工大学 | Voice-tracking microphone and control method of voice-tracking microphone |
| CN110221628A (en) * | 2019-06-20 | 2019-09-10 | 吉安职业技术学院 | A kind of microphone that single-chip microcontroller control is automatically moved with sound source |
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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: 20090401 |