CN204336935U - A kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance - Google Patents
A kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance Download PDFInfo
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- CN204336935U CN204336935U CN201420827258.4U CN201420827258U CN204336935U CN 204336935 U CN204336935 U CN 204336935U CN 201420827258 U CN201420827258 U CN 201420827258U CN 204336935 U CN204336935 U CN 204336935U
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Abstract
The utility model discloses a kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance, comprising: for gathering the pulse transducer of pulse signal; For gathering the respiration pickup of breath signal; For this pulse signal being converted to digital pulse signal, this breath signal being converted to the two-way a/d converter of digital breath signal, this two-way a/d converter connects this pulse transducer to receive this pulse signal, and this two-way a/d converter connects this respiration pickup to receive this breath signal; For gathering the Skin resistance sensor of skin resistance signal; For carrying out the single-chip microcomputer calculated of detecting a lie according to this digital pulse signal, this digital breath signal and this skin resistance signal, this single-chip microcomputer connects this two-way a/d converter and this Skin resistance sensor.It is simple that this utility model provides a kind of structure, easy and simple to handle, the multi-path physiology psychological tester of practicality and high efficiency.
Description
Technical field
This utility model relates to multi-path physiology psychological test field, particularly relates to a kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance.
Background technology
Lie-detection technology is assisting by certain physical technique, and whether test measurand exists the phenomenon of lie, namely monitors the physiological activity situation of testee by a lie detector and the analysis of abnormal movement data is drawn to the situation of lying of testee.
Comparatively common and general lie-detection technology has event related potential lie-detection technology (EPR) and multi-path physiology lie-detection technology EPR to be one of lie-detection technology of comparatively advanced person in the world at present, the ultimate principle of its instrument is according to the EER of tested object to related stimulus, differentiate its with by the relation searched into a matter.
The NeurOne EEG/ERP system that Related product has Mega company of Finland to develop, the Neuroscan EEG/ERP system etc. of Beijing Fei Yuxing Electronic Science and Technology Co., Ltd. exploitation.EPR is as emerging technology in recent years, is more and more approved, development prospect is comparatively large, but Related product structure is all comparatively complicated, and technical difficulty is comparatively large, and cost is higher.Multi-path physiology lie-detection technology is a kind of lie-detection technology that comparatively tradition is also comparatively reliable and general, typical products has domestic PG-I type a lie detector, it has higher precision of detecting a lie, but price still costly uses comparatively inconvenience, and the specialty of the Professional knowledge personnel that detect a lie need be had to coordinate operate, otherwise cannot to apply.
In sum, though above product has higher precision of detecting a lie, all there is cost higher (more than ten thousand yuan), complicated operation, is not suitable for the shortcoming of general librarian use.
Summary of the invention
The technical problem that this utility model solves is, provides a kind of structure simple, easy and simple to handle, the multi-path physiology psychological tester of practicality and high efficiency.
For solving the problem, the utility model discloses a kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance, comprising:
For gathering the pulse transducer of pulse signal;
For gathering the respiration pickup of breath signal;
For this pulse signal being converted to digital pulse signal, this breath signal being converted to the two-way a/d converter of digital breath signal, this two-way a/d converter connects this pulse transducer to receive this pulse signal, and this two-way a/d converter connects this respiration pickup to receive this breath signal;
For gathering the Skin resistance sensor of skin resistance signal;
For carrying out the single-chip microcomputer calculated of detecting a lie according to this digital pulse signal, this digital breath signal and this skin resistance signal, this single-chip microcomputer connects this two-way a/d converter and this Skin resistance sensor.
This Skin resistance sensor connects a processing terminal, and this processing terminal connects a serial communication modular, and this serial communication modular connects this single-chip microcomputer.
Described multi-path physiology psychological tester also comprises one and carries out the buzzer of reporting to the police for the result calculated for detecting a lie, and this buzzer is connected with this single-chip microcomputer.
Described multi-path physiology psychological tester also comprises one and carries out for the result calculated for detecting a lie the display that shows, and this display is connected with this single-chip microcomputer.
This respiration pickup is HKH-11B type respiration pickup.
This two-way a/d converter is AD7705 type two-way a/d converter.
This Skin resistance sensor is HKR-11C Skin resistance sensor.
This single-chip microcomputer is 98C51 type single-chip microcomputer.
This serial communication modular is PL2303 serial communication modular.
Multi-path physiology psychological tester of the present utility model, based on pulse, is breathed, and skin resistance three road bio signal, and structure is comparatively simple and practical, operates also comparatively easy, practicality and high efficiency, is applicable to only using the occasion of conclude of lie detector as valuable reference.Meanwhile, the overall accuracy of detecting a lie is higher.Multi-path physiology psychological tester of the present utility model is a kind of low cost, high performance-price ratio, the multi-path physiology psychological tester of practicality and high efficiency simple and easy to operate.
Accompanying drawing explanation
Figure 1 shows that the structural representation of multi-path physiology psychological tester of the present utility model.
Figure 2 shows that the structural representation of the multi-path physiology psychological tester of another embodiment of the present utility model.
Detailed description of the invention
Describe specific implementation process of the present utility model below in conjunction with accompanying drawing, be not considered as restriction of the present utility model.
The purpose of this utility model is to provide a kind of equipment of detecting a lie of practicality, and especially provide a kind of with low cost using conclude of lie detector as the occasion of valuable reference, cost performance is higher, easy and simple to handle equipment of detecting a lie.
Modern science confirms, people when lying, physiology can change.Some naked eyes are had to observe, as twisted one's ears and rub one's face as a sign of anxiety, a series of factitious human action such as legs and feet shake.Some physiological changies are also had not easily to discover, as: breathing rate and blood volume are extremely; Pulse is accelerated, and blood pressure raises, and blood output increases and composition transfer; Subcutaneous sweat gland secretion increases; Eye pupil is amplified; Stomach shrinks, and digestive juice secretion is abnormal; Muscular tone, to tremble.These physiological parameter, owing to arranging by autonomic nervous system, so generally do not control by the consciousness of people, but autonomous motion, there will be a series of trained reflex phenomenon under environmental stimuli.
So, can detect a lie according to this objective law of function of human body.
This utility model specifically have selected the feature of three aspects of function of human body, as the basis of detecting a lie---i.e. pulse, breathing and skin resistance.This utility model passes through the pulse gathering subjects, the associated biomolecule signal of breathing and skin resistance, and carries out analyzing and processing to this bio signal according to pre-defined rule, thus draws conclude of lie detector.
Be illustrated in figure 1 the structural representation of multi-path physiology psychological tester of the present utility model.
Multi-path physiology psychological tester 100 comprises pulse transducer 11, respiration pickup 12, two-way a/d converter 13, Skin resistance sensor 14 and single-chip microcomputer 15.
Pulse transducer 11 and respiration pickup 12 are all connected to two-way a/d converter 13.This two-way a/d converter 13 is connected with this single-chip microcomputer 15.This Skin resistance sensor 14 is connected with this single-chip microcomputer 15.
Wherein, pulse transducer 11 is for gathering the pulse signal of subjects, and this pulse signal can comprise pulse frequency.Respiration pickup 12 is for gathering the breath signal of subjects, and this breath signal can comprise respiratory frequency and amplitude of respiration.Skin resistance sensor 14 is for gathering the skin resistance signal of subjects.These three sensors all can adopt the specific product existed in prior art to realize.
Such as, pulse transducer 11 can adopt the Pulsesenor pulse transducer produced by Wuxi City Si Zhirui Science and Technology Ltd..
Respiration pickup 12 can adopt the HKH-11B type respiration pickup produced by Hefei Huake Electron Technique Research Academy.
Skin resistance sensor 14 can adopt the HKR-11C Skin resistance sensor produced by Hefei Huake Electron Technique Research Academy.
The pulse signal that pulse transducer 11 gathers is analogue signal.The breath signal that respiration pickup 12 gathers is analogue signal.This two-way a/d converter 13 receives this pulse signal and this breath signal, and respectively this pulse signal is converted to digital pulse signal, this breath signal is converted to digital breath signal.This digital pulse signal and this digital breath signal are sent to this single-chip microcomputer 15 by this two-way a/d converter 13.Gathered skin resistance signal is sent to this single-chip microcomputer 15 by Skin resistance sensor 14.
Detect a lie in process concrete, collection and the calculating of data need be carried out stage by stage.
In the first test period T1, to subjects, the common-sense problem not relating to content of detecting a lie is proposed, to catch the physical signs of subjects under normal physiological condition.In T1, pulse transducer 11, respiration pickup 12 and Skin resistance sensor 14 start periodic image data simultaneously, and gathered data are sent to single-chip microcomputer 15 in real time.This single-chip microcomputer 15 calculates the meansigma methods of all digital pulse signals received in T1 as pulse reference value.This single-chip microcomputer 15 calculates the meansigma methods of all breath signals received in T1 as breathing reference value.Concrete, because breath signal comprises respiratory frequency and amplitude of respiration, so single-chip microcomputer 15 can calculate respiratory frequency and amplitude of respiration respectively, to obtain respiratory frequency reference value and amplitude of respiration reference value.This single-chip microcomputer 15 calculates the meansigma methods of all skin resistance signals received in T1 as skin resistance reference value.
In the second test period T2, formally enter the period of detecting a lie, propose to subjects the problem relating to content of detecting a lie, to catch the physical signs of subjects.In T2, pulse transducer 11, respiration pickup 12 and Skin resistance sensor 14 be image data periodically, and gathered data are sent to single-chip microcomputer 15 in real time.The meansigma methods that this single-chip microcomputer 15 calculates all digital pulse signals received in T2 to be detected a lie value as pulse.The meansigma methods that this single-chip microcomputer 15 calculates all breathing pulse signals received in T2 to be detected a lie value as breathing, specifically can comprise detect a lie value and amplitude of respiration of respiratory frequency and to detect a lie value.The meansigma methods that this single-chip microcomputer 15 calculates all skin resistance signals received in T2 to be detected a lie value as skin resistance.
The concrete duration of T1, T2 can preset according to demand.
This single-chip microcomputer 15 to be detected a lie value according to pulse reference value and pulse, can calculate a pulse rate of change f
p, such as:
Pulse rate of change f
p=(pulse detect a lie value-pulse reference value)/pulse reference value.
Not as limit, other can show the detect a lie computing formula of the intensity of variation between value of pulse reference value and pulse and all can be contained in scope of the present utility model.
In like manner, to detect a lie value according to respiratory frequency reference value and respiratory frequency, a change of respiratory rate rate f can be calculated
b.To detect a lie value according to amplitude of respiration reference value and amplitude of respiration, an amplitude of respiration rate of change A can be calculated
b.To detect a lie value according to skin resistance reference value and skin resistance, a skin resistance rate of change R can be calculated
s.
The weighted value corresponding to various rate of change is previously stored with, pulse weighted value a in this single-chip microcomputer 15
1, respiratory frequency weighted value a
2, amplitude of respiration weighted value a
3, skin resistance weighted value a
4, and according to following formula (1), carry out calculating of detecting a lie.
K＝a
1*f
p+a
2*f
b+a
3*A
b+a
4*R
s(1)
Single-chip microcomputer 15 couples of K judge, if K is greater than a marginal value μ, the every physical signs being considered as subjects exceedes threshold value, then judge that subjects is lying.If K is less than or equal to marginal value μ, the every physical signs being considered as subjects does not exceed threshold value, then judge that subjects does not lie.
Single-chip microcomputer 15 also can be connected with buzzer 16 and/or display 17.If single-chip microcomputer 15 judges that subjects lies, buzzer 16 can give the alarm.Or, the output display of alarm is carried out by display 17.Further, buzzer 16 can be previously provided with two kinds of different rings, lies and the situation of not lying, send different promptings with corresponding respectively.Display 17 also to lying and both of these case of not lying, can carry out the output display of alarm respectively.In another embodiment, single-chip microcomputer 15 can not carry out instant alarm, and only carries out the collection of data, or transfers to other Data Analysis Services platforms by connecting line.
Single-chip microcomputer 15 also carries out by other computing formula of the prior art for detecting a lie calculating of detecting a lie, all in open scope of the present utility model.Such as, single-chip microcomputer 15 can calculate the reference value of parameters and the corresponding ratio of detecting a lie between value, when the ratio of parameters is all in the standard value range preset, single-chip microcomputer 15 is regarded as does not lie, when the ratio of parameters exceeds the standard value range preset, single-chip microcomputer 15 is regarded as lies.
Operationally, only need to be arranged on by the collection terminal of pulse transducer 11, respiration pickup 12, Skin resistance sensor 14 with it subjects, start tester, then tester will send the result of detecting a lie automatically, carries out extra maintenance without the need to operator.
Be illustrated in figure 2 the structural representation of the multi-path physiology psychological tester of another embodiment of the present utility model.
Be with the difference of Fig. 1, Fig. 2 comprises processing terminal 18 and serial communication modular 19 further.Skin resistance sensor 14 connects this processing terminal 18, and this processing terminal 18 connects this serial communication modular 19, and this serial communication modular 19 connects this single-chip microcomputer 15.
The skin resistance signal collected is sent to processing terminal 18 by this Skin resistance sensor 14, and this processing terminal 18 can be such as a computer.This serial communication modular 19 can specifically adopt PL2303 serial communication modular, for realizing the exchanges data between this single-chip microcomputer 15 and this computer.Skin resistance signal for realizing the relaying to the skin resistance signal that Skin resistance sensor 14 gathers, then by Serial technology, is sent to this single-chip microcomputer 15 by this computer.
Multi-path physiology psychological tester of the present utility model adopts simple and practical structure, based on collection pulse, breathe, and skin resistance three road bio signal, realize detecting a lie, operate also comparatively easy, practicality and high efficiency, be applicable to only using the occasion of conclude of lie detector as valuable reference, as some comparatively serious occasion in family life, investigation cheats at one's exam.Meanwhile, although this utility model does not use complicated structure, corresponding experiment of detecting a lie proves that its precision of detecting a lie can reach more than 80%, is a kind of low cost, high performance-price ratio, the multi-path physiology psychological tester of practicality and high efficiency simple and easy to operate.
Claims (9)
1., based on a multi-path physiology psychological tester for pulse, breathing and skin resistance, it is characterized in that, comprising:
For gathering the pulse transducer of pulse signal;
For gathering the respiration pickup of breath signal;
For this pulse signal being converted to digital pulse signal, this breath signal being converted to the two-way a/d converter of digital breath signal, this two-way a/d converter connects this pulse transducer to receive this pulse signal, and this two-way a/d converter connects this respiration pickup to receive this breath signal;
For gathering the Skin resistance sensor of skin resistance signal;
For carrying out the single-chip microcomputer calculated of detecting a lie according to this digital pulse signal, this digital breath signal and this skin resistance signal, this single-chip microcomputer connects this two-way a/d converter and this Skin resistance sensor.
2. multi-path physiology psychological tester as claimed in claim 1, it is characterized in that, this Skin resistance sensor connects a processing terminal, and this processing terminal connects a serial communication modular, and this serial communication modular connects this single-chip microcomputer.
3. multi-path physiology psychological tester as claimed in claim 1, is characterized in that, also comprise one and carry out the buzzer of reporting to the police for the result calculated for detecting a lie, this buzzer is connected with this single-chip microcomputer.
4. multi-path physiology psychological tester as claimed in claim 1, is characterized in that, also comprise one and carry out for the result calculated for detecting a lie the display that shows, this display is connected with this single-chip microcomputer.
5. multi-path physiology psychological tester as claimed in claim 1, it is characterized in that, this respiration pickup is HKH-11B type respiration pickup.
6. multi-path physiology psychological tester as claimed in claim 1, it is characterized in that, this two-way a/d converter is AD7705 type two-way a/d converter.
7. multi-path physiology psychological tester as claimed in claim 1, it is characterized in that, this Skin resistance sensor is HKR-11C Skin resistance sensor.
8. multi-path physiology psychological tester as claimed in claim 1, it is characterized in that, this single-chip microcomputer is 98C51 type single-chip microcomputer.
9. multi-path physiology psychological tester as claimed in claim 2, it is characterized in that, this serial communication modular is PL2303 serial communication modular.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827258.4U CN204336935U (en) | 2014-12-24 | 2014-12-24 | A kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827258.4U CN204336935U (en) | 2014-12-24 | 2014-12-24 | A kind of multi-path physiology psychological tester based on pulse, breathing and skin resistance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667506A (en) * | 2016-12-21 | 2017-05-17 | 上海与德信息技术有限公司 | Method and device for detecting lies on basis of electrodermal response and pupil change |
| CN108685583A (en) * | 2018-07-13 | 2018-10-23 | 北京大学深圳医院 | Psychological tester |
| CN110680349A (en) * | 2019-10-29 | 2020-01-14 | 华南理工大学 | Pulse lie detection method and device based on linear frequency modulation |
| CN111513730A (en) * | 2020-03-20 | 2020-08-11 | 合肥工业大学 | Psychological stress prediction method and system based on multi-channel physiological data |
-
2014
- 2014-12-24 CN CN201420827258.4U patent/CN204336935U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667506A (en) * | 2016-12-21 | 2017-05-17 | 上海与德信息技术有限公司 | Method and device for detecting lies on basis of electrodermal response and pupil change |
| CN108685583A (en) * | 2018-07-13 | 2018-10-23 | 北京大学深圳医院 | Psychological tester |
| CN108685583B (en) * | 2018-07-13 | 2024-01-09 | 北京大学深圳医院 | Psychological tester |
| CN110680349A (en) * | 2019-10-29 | 2020-01-14 | 华南理工大学 | Pulse lie detection method and device based on linear frequency modulation |
| CN110680349B (en) * | 2019-10-29 | 2021-07-20 | 华南理工大学 | Pulse lie detection method and device based on linear frequency modulation |
| CN111513730A (en) * | 2020-03-20 | 2020-08-11 | 合肥工业大学 | Psychological stress prediction method and system based on multi-channel physiological data |
| CN111513730B (en) * | 2020-03-20 | 2023-06-09 | 合肥工业大学 | Psychological stress prediction method and system based on multichannel physiological data |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151224 |
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| EXPY | Termination of patent right or utility model |