Ultrasonic head command detection automatic spectrum turning device and its working method
A technology of automatic flipping and ultrasonic detection, applied in the field of automatic spectrum flipping, can solve problems such as distraction, get rid of the trouble of cables, help eyesight health, and the effect of simple installation
Inactive Publication Date: 2019-01-29
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
This device is susceptible to interference such as hot air or bright light, and requires the use of the legs, which can also easily cause distraction or cause loss of control in a hurry
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[0033] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the implementation and protection of the present invention are not limited thereto.
[0034] This example proposes an automatic page-turning device for ultrasonic head command detection for performance, and its system block diagram is as follows figure 1 As shown, it includes an ultrasonic testing terminal, a control module 201 and a driving terminal 202 . The two ultrasonic sensors 306 included in the ultrasonic detection terminal are respectively located on the left and right sides of the spectrum clip shell 305, and are used to measure the distance information after the head enters the detection areas on both sides. The control module includes a communication unit, a data buffer unit, an echo analysis unit and a controller connected in sequence. When the music folder is opened and the power switch is switched to ON, the ultrasonic sensor...
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The invention discloses an ultrasonic head instruction detection automatic music score turning device and a working method thereof. The ultrasonic head instruction detection automatic music score turning device comprises an ultrasonic detection terminal, a control module and a driving terminal. The ultrasonic detection terminal detects whether the head of a player enters a preset detection area or not through ultrasonic sensors located on the left side and the right side of a music score clip; when the stay time reaches certain duration, a music score turning instruction is started; a control signal is sent to a controller; the driving terminal is started; a displacement motor in the driving terminal rotates to drive a positioning gear at the top of a displacement rod to move to a corresponding gear connected with a target page; immediately, a rotary motor rotates to drive the positioning gear and the gear corresponding to the target page to rotate; and whether the left and right sensors work or not corresponds to two types of control of forward turning and backward turning of a music score. The ultrasonic head instruction detection automatic music score turning device has the advantages of being sensitive in operation, free in real time, convenient to mount and low in cost and can be used for various instrument performances.
Description
technical field [0001] The invention mainly relates to the technical field of automatic page-turning, in particular to an ultrasonic head command detection automatic page-turning device capable of automatically flipping through paper sheet music during musical instrument performance and a working method thereof. Background technique [0002] In the performance of piano or other musical instruments, the number of sheets of sheet music often increases with the increase of performance difficulty. A piece of music can range from a few pages to as many as dozens of pages. For music that is played at a fast speed or needs to be played with both hands at the page-turning position, the performance effect will be affected if the page-turning action is not timely. Therefore, in formal performances or formal examinations, it is often necessary to be equipped with special personnel to assist in page translation. In order to do this work well, the page-turning personnel are required to...
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IPC IPC(8): B42D9/04G10G7/00G01S15/08
CPCB42D9/04G01S15/08G10G7/00
Inventor 万吉娜韦岗
Owner SOUTH CHINA UNIV OF TECH