Lie detection method and device

A measurer, ultrasonic technology, applied in the measurement of pulse/heart rate, medical science, sonic diagnosis, etc., can solve the problems of complex operation, complex structure, large volume, etc., to achieve the effect of simple operation, small size, and easy portability

Inactive Publication Date: 2013-04-17
沈锋艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, professional polygraphs need to install multiple sensors on multiple positions such as the chest, brain, and arms of the subject. The stru

Method used

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  • Lie detection method and device

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Embodiment 1

[0022] Embodiment 1 of the present invention: a polygraph device, the schematic diagram of which is as follows figure 1 As shown, it includes a mobile phone, and also includes a single-chip microcomputer 1 arranged on the mobile phone, an ultrasonic transceiver 2 and an alarm module 3 connected to the single-chip microcomputer 1 . The alarm module 3 is a speaker. The ultrasonic transceiver 2 is arranged on the mobile phone, and transmits and receives ultrasonic signals through a detection hole arranged on the mobile phone. The ultrasonic transceiver 2 is an ultrasonic transceiver chip, and CX20106A can be used. A signal amplifying circuit 5 and an AD conversion circuit 6 are also arranged between the single chip 1 and the ultrasonic transceiver 2 . It also includes a storage unit 7 connected to the single-chip microcomputer 1, which is used to store the normal range values ​​of heartbeat frequency, respiration frequency, blood pressure change and body temperature change, and ...

Embodiment 2

[0023] Embodiment 2 of the present invention: a polygraph device, the schematic diagram of which is as follows figure 2 As shown, it includes a mobile phone, and also includes a single-chip microcomputer 1 arranged on the mobile phone, an ultrasonic transceiver 2 and an alarm module 3 connected to the single-chip microcomputer 1 . The alarm module 3 is a speaker. The ultrasonic transceiver 2 is connected to the USB port 4 on the mobile phone through a data cable, and the reflected ultrasonic signal will be sent to the mobile phone through the data cable. A signal amplifying circuit 5 and an AD conversion circuit 6 are also arranged between the single chip 1 and the ultrasonic transceiver 2 . It also includes a storage unit 7 connected to the single-chip microcomputer 1, which is used to store the normal range values ​​of heartbeat frequency, respiration frequency, blood pressure change and body temperature change, and also stores the data that converts the ultrasonic signal ...

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Abstract

The invention discloses a lie detection method and device. The method comprises the following steps that S1 a mobile phone sends ultrasonic signals to a detected user and receives reflected ultrasonic signals; S2 the mobile phone processes the received ultrasonic signals and converts to obtain heartbeat frequency, respiratory frequency, blood pressure changes and temperature changes; and S3 the mobile phone judges whether the detected user tells a lie or not according to the heartbeat frequency, the respiratory frequency, the blood pressure changes and the temperature changes, and the mobile phone raises the alarm when the detected user tells a lie. The lie detection method and device can use the mobile phone to detect whether the user tells a lie or not, and the lie detection device is simple in structure, small in size, simple in operation and convenient to use.

Description

technical field [0001] The present invention relates to a polygraph detection method and device. Background technique [0002] At present, professional polygraph detectors need to set up various sensors in multiple positions such as the chest, brain, and arms of the subject. The structure is complex, the volume is large, and the operation is relatively complicated. For ordinary people, professional lie detectors are used. is very inconvenient. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a polygraph detection method and device, which can use a mobile phone to perform polygraph detection on a subject, with simple structure, small size, simple operation and convenient use. [0004] Technical scheme of the present invention: a polygraph method, comprising the following steps: [0005] S1, the mobile phone sends an ultrasonic signal to the subject and receives the reflected ultrasonic signal; [0006] S2, the mobile phone processes th...

Claims

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Application Information

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IPC IPC(8): A61B8/00A61B8/02
Inventor 沈锋艳
Owner 沈锋艳
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