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Contact type acoustic wave sensing device

A sensing device and contact technology, which is applied in the field of electronic information, can solve the problems of poor precision of sensing devices and easy false triggering, and achieve the effects of reducing the influence of sound signals, low manufacturing cost, and easy layout

Inactive Publication Date: 2018-09-11
广州通导信息技术服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a new type of contact-type acoustic wave induction device, which solves the technical problems of poor precision and easy false triggering of the induction device in the prior art

Method used

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  • Contact type acoustic wave sensing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1, such as figure 1 As shown, the contact-type acoustic wave induction device includes a piezoelectric sheet and a single-chip microcomputer; the piezoelectric sheet is used to convert the vibration signal of the sound wave into an electric signal; the single-chip microcomputer is used to process the received electric signal according to a pre-written program and send out Execution signal. Through the use of the piezoelectric sheet, the solid-state vibration sound wave signal is well converted into an electric signal, and the piezoelectric sheet is not sensitive to the sound wave signal in the air, and can be used as the shock signal receiving of the shock induction. Reducing the influence of the sound signal propagated by the gas medium can better sense the vibration signal of the solid, so that only one piezoelectric sheet can achieve a larger sensing receiving area. The piezoelectric chip is connected to the comparator port of the single-chip microcomputer. Th...

Embodiment 2

[0026] Example 2, such as figure 2 As shown, the contact-type acoustic wave induction device includes a piezoelectric sheet and a single-chip microcomputer; the piezoelectric sheet is used to convert vibration signals into electrical signals; the single-chip microcomputer is used to process the received electrical signals according to a pre-written program and send out execution signals . An operational amplifier is arranged between the piezoelectric film and the single-chip microcomputer. One end of the operational amplifier is connected to the output end of the piezoelectric film, and the other end is connected to the input port of the single-chip microcomputer; the operational amplifier is used to amplify the electrical signal emitted by the piezoelectric film and then transmit Sampling or generating an interrupt signal to the single-chip microcomputer, the single-chip ADC, and then sending out execution information. At this time, as long as the level signal generated by t...

Embodiment 3

[0028] Embodiment 3, on the basis of any of the above technical solutions, an execution device is connected to the single chip microcomputer. The execution device may be an RGB LED, a voice IC, a motor module, a relay module, a high-power drive module, and a serial communication module And so on, to realize that the execution information sent by the single-chip microcomputer is used to remind people that an impact has occurred. By connecting RGBLED, voice IC, motor module, relay module, high-power drive module, serial communication module on the single-chip microcomputer, it is used to complete the execution information of the single-chip microcomputer. After the single-chip microcomputer sends out the execution information, it transmits the execution information to the execution device, so that the execution device sends out execution actions to remind people that the object has hit, which is more convenient to use.

[0029] On the basis of the basic technical scheme, the presen...

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PUM

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Abstract

The invention belongs to the technical field of electronic information, and particularly relates to a contact type acoustic wave sensing device. The contact type acoustic wave sensing device includesa piezoelectric piece and a single chip microcomputer; the piezoelectric piece is used for converting a vibration signal of a sound wave into an electric signal; the single chip microcomputer is usedfor processing the received electric signal according to a pre-programmed program and issuing an execution signal. The technical problem that the sensing device has poor precision and is easy to be falsely triggered in the prior art is solved. The piezoelectric piece can convert the solid vibration signal into an electrical signal, and because the piezoelectric piece is insensitive to the acousticsignal in the air, the solid vibration signal can be better sensed, so that only one piezoelectric piece can achieve a large sensing receiving area.

Description

Technical field [0001] The invention belongs to the field of electronic information technology, and particularly relates to a contact-based acoustic wave induction device. Background technique [0002] In sports or military exercises, such as fencing, boxing, martial arts, military confrontation and other contact sports, it is inevitable that subjective deviations will inevitably occur if only manual referees are used. The use of electronic sensing devices can effectively perform hit recognition, digitize the competition, achieve better refereeing effects, and reduce referee errors. Taking the water gun game judgment helmet on the market as an example, the existing technology is to use a pressure sensor to obtain the vibration signal of the sound wave by hitting the pressure sensing part, or use a spring vibration sensor to obtain the sound wave through the shock of the hit. Vibration signal. Both of the above-mentioned sensing methods have shortcomings. The pressure sensing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/08
CPCG01H11/08
Inventor 陈朝晖郑德文吴焕杰谢志华
Owner 广州通导信息技术服务有限公司
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