Flexible power generation element, self-driven voiceprint sensor and voiceprint recognition security system

Abstract

The invention discloses a flexible power generation element, a self-driven voiceprint sensor and a voiceprint recognition security system. The flexible power generation element comprises a first component, a second component and a third component; the first component comprises a first metal conducting layer and a first electrode formed on the edge of the first metal conducting layer; the second component comprises a high-molecular polymer insulating layer and a porous structure in the high-molecular polymer insulating layer; the third component comprises a second metal conducting layer and a second electrode formed on the edge of the second metal conducting layer; the first component, the second component and the third component are in seamless close fit, and the second component is compressed or expanded by a sound pressure generated by sound in the second component to generate an AC signal containing sound information; the self-driven voiceprint sensor is formed by one or more flexible power generation elements; and the voiceprint recognition security system comprises a voiceprint sensor, a filtering and amplifying unit, a data collection unit, an analyzing and processing unit, a control unit and a response terminal, which are connected in sequence. The voiceprint recognition security system provided by the invention has the advantages of compact structure and high voiceprint recognition rate.

Description

technical field [0001] The invention belongs to the technical field of biological identification, and more specifically relates to a flexible power generation element, a self-driven voiceprint sensor and a voiceprint recognition security system. Background technique [0002] With the development of biometric technology, various biometric technologies have attracted people's attention. Among them, voice recognition is widely used in various high-tech electronic products such as mobile phones and computers because of its non-contact automatic control characteristics. However, most of the current speech recognition functions can only recognize language content, but not speaker recognition, that is, voiceprint recognition, which has a certain degree of functional loss and security loopholes. Voiceprint recognition technology can be used to obtain voiceprint features in a remote and non-contact manner. It is low in cost and easy to use. When used in conjunction with voice recogni...

AI Technical Summary

Problems solved by technology

[0004] As far as voiceprint recognition devices are concerned, most of the current voiceprint recognition uses voltage-type microphones. However, this voltage-type microphone has the following defects: On the one hand, voltage-type microphones need to be continuously powered by an external power supply to maintain normal operation. If the power is turned off, the system will be paralyzed; on the other hand, voiceprint recognition requires high recognition of sound signals. Due to the relatively low sensitivity of voltage-type devices, voltage-type microphones do not have a high degree of sound recognition, which reduces the voiceprint recognition rate.

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