An independent sound wave algorithm control circuit

Abstract

The invention discloses an independent sound wave algorithm control circuit, comprising: a sound wave drive power supply, used to convert the power supply voltage into a high voltage required by the sound wave drive circuit module under the control of a boost control signal VOICE_PWR_CTRL; a sound wave drive circuit module, used for The eight-way PWM signal output by the microprocessor module is driven and amplified to be suitable for driving the high-voltage buzzer module to issue a deterrent sound wave warning; the microprocessor module is used to receive instructions from the host computer and control the sound wave drive power to generate the described High-voltage and output 8-way PWM signals to the sound wave drive circuit module; the high-voltage buzzer module is used to convert the four-way high-voltage variable-frequency PWM signals output by the sound wave drive circuit module into deterrent sound wave warnings. The present invention can Produces a wide range of deterrent sound wave warnings that do not harm the hearing or body of the repelled intruders or people in the defense zone.

Description

technical field [0001] The invention relates to the technical field of safety protection, in particular to an independent sound wave algorithm control circuit. Background technique [0002] At present, with the development of science and technology, all walks of life, such as finance, transportation, public security, etc., have increasingly urgent needs for the prevention and control of important areas, and various safety precautions have emerged as the times require. [0003] Among the many safety precautions, sonic alarm is one of the most commonly used methods. Sonic alarm refers to the use of the sonic trigger button on the scene to turn on sonic deterrence when there is an illegal or criminal incident, so as to force the end of the crime. However, existing The sound wave deterrent effect in the technology is not ideal, the deterrent range is not wide enough, and the generated sound wave may cause harm to the human body, which is inconvenient to be widely used. [0004]...

AI Technical Summary

Problems solved by technology

[0003] Among the many safety precautions, sound wave alarm is one of the most commonly used means. Sound wave alarm refers to using the on-site sound wave trigger button to turn on the sound wave deterrence when there is an illegal and criminal incident, so as to force the criminal behavior to terminate. However, the existing The sound wave deterrent effect in the technology is not ideal, and the deterrent range is not wide enough. The sound waves generated may harm the human body, and it is inconvenient to be widely used.

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