CN203379122U

CN203379122U - Wireless electroencephalogram and eye movement polygraph

Info

Publication number: CN203379122U
Application number: CN201320452024.1U
Authority: CN
Inventors: 蔺彬涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-26
Filing date: 2013-07-26
Publication date: 2014-01-08
Anticipated expiration: 2023-07-26

Abstract

A wireless electroencephalogram and eye movement polygraph comprises a head-wearing type brainwave sensor, and a data acquisition unit, a main processing unit and a transmit unit which are arranged inside the wireless electroencephalogram and eye movement polygraph; the wireless electroencephalogram and eye movement polygraph is characterized in that the processing and control terminal for a test procedure is arranged inside a computer and connected with a receiving unit; an electroencephalogram and eye movement physiological signal is input into the computer through the receiving unit to control all operation; the test procedure treatment and control are completed through a wireless communication manner. The wireless electroencephalogram and eye movement polygraph provided by the utility model has the benefits that the head-wearing type brainwave sensor is simple in structure, the wireless electroencephalogram and eye movement polygraph is convenient to wear during use, has high sensitivity, is convenient to maintain and carry and is not affected by testing places and environment, the electroencephalogram and eye movement information acquisition and operation are simple and convenient, the work efficiency is improved obviously, and the effect of half the work with double results is obtained.

Description

Wireless brain electricity and eye movement a lie detector

Technical field

This utility model relates to psychological test (detecting a lie) field, specifically wireless brain electricity and the eye movement a lie detector of a kind of wireless blue tooth or radio-frequency communication technology.

Background technology

Traditional be applied to psychological test (detecting a lie) instrument that criminal investigation is used, more common is the multi-path physiology test philosophy, and this tester is taken from the physiological parameters such as people's skin electricity, breathing, blood pressure.Because the parts connecting line is more, not too convenient during use, the impact of environmental factors sometimes makes test job carry out difficulty, and the application of the technology of detecting a lie is restricted, and even can miss best test opportunity.

Summary of the invention

In order to overcome the applied defect in existing multiple tracks psychological test (detecting a lie) technology, the utility model proposes a kind of brand-new design, extract people's brain wave event related potential P300, attention rate, intensity nictation of thinking depth information and eye movement, the Rotation of eyeball number of times, frequency of wink and the strength information of blinking, and this equipment of detecting a lie is designed to information gathering end and the operating side a lie detector with wireless communication mode, make the test site expanded range, and can carry out in different places brain electricity and eye movement information gathering and operation, reduce as far as possible the impact of varying environment on the work of detecting a lie, improve the accuracy rate of detecting a lie.

This utility model is achieved by the following technical solution, this utility model is by comprising wear-type E.E.G sensor and being located at inner data acquisition unit, Main Processor Unit, transmitter unit and receiving element are connected in computer and form, test process is processed, control and all operated by wireless communication mode, data acquisition unit comprises that the dry electrode probe of brain wave can be to brain wave event related potential P300, attention rate, intensity nictation of the thinking degree of depth and eye movement, the Rotation of eyeball number of times, the eye electrical wave measurement of frequency of wink and the strength information of blinking, for gathering Electroencephalo information, Main Processor Unit, process for the data analysis to gathering, transmitter unit, the data transmission gathered for handle is to receiving element, adopt wear-type E.E.G sensor to be connected to the data acquisition unit image data, and output to transmitter unit after being processed by Main Processor Unit, receiving element is for receiving the transmitter unit signal, and receiving element is connected in computer, and test process is processed, control all operates by wireless communication mode.

This utility model can all be located at the field data collection terminal in wear-type E.E.G sensor, the information gathering end comprises three unit, data acquisition unit, Main Processor Unit, transmitter unit, the processing of test process, control end are located in computer and are connected by receiving element, by receiving element, the moving physiological signal of brain electric eye is input to computer and controls all operations were, become a kind of novel test equipment.

The beneficial effects of the utility model are: wear-type E.E.G sensor has simple for structure, during use, wear facilitate highly sensitive easy to maintenance, not only be easy to carry, and not tested person place, such environmental effects, brain electricity and eye movement information gathering and easy and simple to handle, obviously increase work efficiency, obtain the effect of getting twice the result with half the effort.

The accompanying drawing explanation

Accompanying drawing 1 is schematic diagram of the present utility model.

The structural map that accompanying drawing 2 is this utility model embodiment.

(1) on and off switch wherein, the dry electrode probe of (2) brain wave, (3) signal transmitting indicating lamp, (4) earthing clip.

The specific embodiment

Embodiment of the present utility model is further described by reference to the accompanying drawings:

As shown in drawings, this utility model is connected in computer and forms by comprising wear-type E.E.G sensor and being located at inner data acquisition unit, Main Processor Unit, transmitter unit and receiving element, and test process processes, control and all operate by wireless communication mode.

This utility model wear-type E.E.G sensing utensil is provided with on and off switch (1), the dry electrode probe of brain wave (2), signal transmitting indicating lamp (3), earthing clip (4), core component operating circuit plate of the present utility model is arranged in wear-type E.E.G sensing utensil, wherein also arranges when a joint 1.5V battery is used for this utility model electric energy is provided.

Brain wave event related potential P300, attention rate, thinking depth signal are after dual stage filter, the more adjustable operational amplifier of process gain, by AD, sample subsequently, send into single-chip microcomputer and carry out computing, send the transmitter unit emission after processing.

From intensity nictation of isolating eye movement brain wave, Rotation of eyeball number of times, frequency of wink and nictation strength signal after sampling, by multi-stage operational amplifier, amplify, filtering, and then do every straight processing, penetrating level follows, enter single-chip microcomputer and carry out calculation process, single-chip microcomputer send the transmitter unit emission according to the signal of receiving.

Extracting brain wave and eye movement signal is very important psychological test signal, the present embodiment can be by the image stimulus standard method of testing of the situation test (GKT) of psychological test (detecting a lie), and test of eye movement can application and CQT, MGQT, the standard method of test such as POT, SKY.Test process is by wireless transmit, and receiving element is connected in computer, and test process is processed, control all operates by wireless communication mode.

Claims

1. a wireless brain electricity and eye movement a lie detector, comprise wear-type E.E.G sensor and be located at inner data acquisition unit, Main Processor Unit, transmitter unit, the processing, the control end that it is characterized in that test process are located in computer and are connected by receiving element, by receiving element, the moving physiological signal of brain electric eye is input to computer and controls all operations were, test process is processed, control all completes by wireless communication mode.

2. a kind of wireless brain electricity as claimed in claim 1 and eye movement a lie detector, it is characterized in that data acquisition unit comprise the dry electrode probe of brain wave can to intensity nictation of brain wave event related potential P300, attention rate, the thinking degree of depth and eye movement, Rotation of eyeball number of times, frequency of wink and nictation strength information eye electrical wave measurement.