CN109077740A - Child attention detecting and analysing system and method - Google Patents

Child attention detecting and analysing system and method Download PDF

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Publication number
CN109077740A
CN109077740A CN201710442588.XA CN201710442588A CN109077740A CN 109077740 A CN109077740 A CN 109077740A CN 201710442588 A CN201710442588 A CN 201710442588A CN 109077740 A CN109077740 A CN 109077740A
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CN
China
Prior art keywords
voice
signal
speech
analog signal
child attention
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Pending
Application number
CN201710442588.XA
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Chinese (zh)
Inventor
顾冰祎
史淑娟
陈毓琳
余子健
陈均章
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Shanghai Haoshun Science & Technology Co Ltd
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Shanghai Haoshun Science & Technology Co Ltd
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Priority to CN201710442588.XA priority Critical patent/CN109077740A/en
Publication of CN109077740A publication Critical patent/CN109077740A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/16Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/168Evaluating attention deficit, hyperactivity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4803Speech analysis specially adapted for diagnostic purposes

Abstract

The invention discloses a kind of child attention detecting and analysing system and method, which includes speech recognition system, and speech recognition system includes voice-input unit, speech digital processing unit.Wherein, speech digital processing unit includes single-chip microprocessor system, PLL phaselocked loop, ADC sampling module, DSP data operation module, speech processes function library.Voice-input unit receives the voice input of children, and automatically control the gain of voice analog signal, voice analog signal is converted to voice digital signal by ADC sampling module, DSP data operation module is quickly handled voice digital signal to be measured, the most similar signal text is found according to speech processes function library, single-chip microprocessor system adjusts the sample frequency of ADC sampling module according to the output of PLL phaselocked loop, and collected voice digital signal is stored.The present invention enables to test result more objective, reliable.

Description

Child attention detecting and analysing system and method
Technical field
The present invention relates to a kind of test macro and methods, more specifically to a kind of child attention test analysis system System and method.
Background technique
Attention refers to a psychological condition when people is absorbed in a certain things or activity, is to observe, think deeply, remembering, thinking As most basic ability.Pay attention to only first noticing certain things from start to finish through entire mental process, be likely into one Step goes training, memory and thinking etc..Due to note that people can just concentrate one's energy clearly to perceive certain things, in depth Certain problem is thought deeply, without being interfered by other things;Not note that the various mental factors of people, observe, remember, think As and thinking etc. will cannot get certain support and out of hand.So, it would be desirable to fully understand what attention problem was formed Reason, scatterbrained performance and harm, and the most fundamental training method is grasped after overall understanding.Attention is surveyed Examination is to understand most basic one of the approach of child's learning ability.
Attention children is one of five Fundamentals of intelligence, is memory, observation, imagination, thinking ability Preparation state, so attention is known as the portal of soul.The prior art can test children's by some scales Attention, these test contents include child do homework at home when whether be difficult to get down study, child whether seldom attend class Raise one's hand speech, child good friend whether everyway and child is much like, very child whether wear that liang and cover oneself especially by love The clothes etc. liked.
However, existing test is all made of manual testing, the method that test result is compared with scale, therefore test Error it is larger, and artifical influence factor is more.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide a kind of child attention test analysis System and method
To achieve the above object, the present invention adopts the following technical scheme:
A kind of child attention detecting and analysing system, including speech recognition system, speech recognition system include voice input Unit, speech digital processing unit.Wherein, speech digital processing unit includes single-chip microprocessor system, PLL phaselocked loop, ADC sampling Module, DSP data operation module, speech processes function library.Voice-input unit receives the voice input of children, and automatically controls Voice analog signal is converted to voice digital signal, DSP data operation mould by the gain of voice analog signal, ADC sampling module Block is quickly handled voice digital signal to be measured, finds the most similar signal text according to speech processes function library This, single-chip microprocessor system adjusts the sample frequency of ADC sampling module according to the output of PLL phaselocked loop, and collected language Sound digital signal is stored.
Further, further include crystal oscillator, crystal oscillator by PLL phaselocked loop make its output signal automatically with Track voice input signal.
It further, further include computer motherboard, single-chip microprocessor system calculates signal File Transfer to computer motherboard Mainboard is according to signal text output judging result.
Further, voice-input unit includes microphone, microphone amplifying circuit, automatic gain control circuit.Voice Analog signal enters automatic gain control circuit, automatic gain control circuit adjustment by microphone and microphone amplifying circuit The signal strength of voice analog signal.
It further, further include Switching Power Supply, Switching Power Supply is double to be grounded, and exports two-way voltage, all the way 3.3V, all the way 9V;9V voltage is voice-input unit power supply, and 3.3V voltage is the power supply of speech digital processing unit.
To achieve the above object, the present invention also adopts the following technical scheme that
A kind of child attention method for testing and analyzing, comprising the following steps: receive voice input;Voice analog signal is gone Noise and adjust gain;Detect the starting and termination end points of voice analog signal;Voice analog signal is converted into speech digit Signal, and characteristic signal text is extracted from voice digital signal according to speech processes function library;Judging characteristic signal text is No match parameter template? if so, exporting corresponding judging result from parameterized template;If it is not, then carrying out new pattern match;Root Recognition result is exported according to pattern match.
Further, further comprising the steps of: to show multiple dynamics and still image;Issue multiple enquirements and instruction;Inspection Survey the time of tested children's eyes observation image;Detect the signal of tested children speech expression.
In the above-mentioned technical solutions, child attention detecting and analysing system of the invention and method can receive manual scale Enter into digital processing system, and carry out data acquisition using computer system, the voice signal for introducing tested children is known automatically Not, so that mostly dynamic obstacle (ADHD) diagnosis of child attention defect is more scientific, more comprehensively.
Detailed description of the invention
Fig. 1 is speech recognition equipment structural schematic diagram of the present invention;
Fig. 2 is the flow chart of Test of attention analysis method of the present invention;
Fig. 3 is the program flow chart of speech recognition embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
The present invention discloses a kind of child attention detecting and analysing system first, for hindering to former children's power attention-deficit hyperactivity Hinder the significant improvement of (ADHD) diagnostic device.Mostly dynamic obstacle (ADHD) diagnostic device of former child attention defect is by being tested youngster The luminous point moved on virgin eye gaze device screen, eyeball is mobile with the moving target on screen, uses cornea eye and view The electro-physiological signals changed between nethike embrane diagnose the Stable Defects of attention, i.e. attention deficit hyperactivity disorder.
Main innovation of the invention is speech recognition system therein, phonetic representation signal acquisition and knowledge to children Not, i.e., hear that test device issues each according to various images, the ear that tested children are visually observed test device viewing area After kind sound, with the oral voice answering provided, lacked to diagnose range, the distributivity of attention and the metastatic of attention of attention It falls into, i.e. attention deficit hyperactivity disorder.
Referring to Fig.1, the main frame of speech recognition system of the invention includes voice-input unit, speech digital processing list Member, crystal oscillator 4, computer motherboard 7.Wherein, voice-input unit further comprises microphone 1, microphone amplifying circuit 2, automatic gain control circuit 3, and speech digital processing unit further comprise single-chip microprocessor system 5e, PLL phaselocked loop 5b, ADC sampling module 5a, DSP data operation module 5c, speech processes function library 5d.
As shown in Figure 1, voice-input unit receives the voice input of children, and automatically control the increasing of voice analog signal Benefit.Specifically, voice analog signal enters automatic gain control circuit 3 by microphone 1 and microphone amplifying circuit 2, The signal strength of the adjustment voice analog signal of automatic gain control circuit 3.Since microphone 1 is apart from different and ambient noise size Etc. factors make the energy of voice signal have very big difference, if input signal strength is too big or the too small essence that all will affect identification Degree, 3 adjust automatically signal strength of AGC automatic gain control circuit, the amount of enabling it to are no more than ± 5db range.
In speech digital processing unit, voice analog signal is converted to voice digital signal by ADC sampling module 5a, brilliant Oscillation body device 4 makes its output signal automatically track voice input signal by PLL phaselocked loop 5b.DSP data operation module 5c Voice digital signal to be measured is quickly handled, the most similar signal text is found according to speech processes function library 5d This, single-chip microprocessor system 5e adjusts the sample frequency of ADC sampling module 5a according to the output of PLL phaselocked loop 5b, and acquisition To voice digital signal stored.In other words, single-chip microprocessor system 5e (including RAM and flash memory) is locked with PLL The phase ring 5b output signal adjust automatically sample frequency of ADC sampling module 5a, and the signal adopted is stored in single chip microcomputer The RAM memory of system 5e (including RAM and flash memory).Finally, single-chip microprocessor system 5e extremely counts signal File Transfer Mainboard 7 is calculated, computer motherboard 7 is according to signal text output judging result.
With continued reference to Fig. 1, Switching Power Supply 6 pairs ground connection, and two-way voltage is exported, all the way 3.3V, all the way 9V.Wherein, 9V electricity Pressure is that voice-input unit is powered, and 3.3V voltage is the power supply of speech digital processing unit.
Corresponding to above system, invention additionally discloses a kind of child attention method for testing and analyzing, main referring to Fig. 2 The following steps are included:
S1: multiple dynamics and still image are shown on the screen;
S2: multiple enquirements and instruction are issued using the loudspeaker of system;
S3: when tested children are visually observed the various images of test device viewing area, tested children's eyes observation is detected The time of image;
S4: after tested children's ear hears various problems and instruction, the signal of tested children speech expression is detected, system connects Receive voice input;
S5: to voice analog signal denoising and adjust gain;
S6: the starting and termination end points of voice analog signal are detected;
S7: voice analog signal is converted into voice digital signal, and is believed according to speech processes function library from speech digit Characteristic signal text is extracted in number;
At this point, system judging characteristic signal text whether match parameter template?
S8: if so, exporting corresponding judging result from parameterized template;
S9: if it is not, then carrying out new pattern match;
S10: recognition result is exported according to pattern match.
The judgment criteria of test result is as follows: the electro-physiological signals for testing the variation between its cornea eye and retina come Stabilization, that is, stability defect accounting that diagnosis pays attention to is 40%, and the phonetic representation signal of children is tested by speech recognition system Diagnose range, distributivity and the metastatic of attention, i.e., the accounting of attention deficit hyperactivity disorder is 60%.Child attention exists Four kinds of qualities being showed of clinic, the stabilization paid attention to i.e. stability, the range i.e. range of attention, attention distribution divide Transfer, that is, metastatic with property and attention, by above two test and corresponding software and hardware obtain one it is more scientific, more Comprehensive diagnosis.
In addition, the present invention further discloses the speech recognition processes being applied in Test of attention analysis method.Voice Signal is sufficiently complex non-stationary signal, it not only includes semantic information, and there are also personal characteristic informations, to its characteristic parameter Research be speech recognition basis.
Referring to Fig. 3, the main frame of audio recognition method of the invention includes two large divisions:
The first step is " systematic learning " or " training " stage, this phased mission is the acoustic mode for establishing identification basic unit Type, i.e. building parameterized template.
Second step is to be adopted using a certain speech analysis method according to certain criterion handle in " identification " or " test " stage The voice signal obtained is compared with the model in parameterized template, is obtained a result by judgement.
As shown in figure 3, enter " training " or " identification " stage after system starting is initialized, if it is " training " stage, S11 is then executed, if it is " identification " stage, then executes S12.
S11: system prompt voice " training " has been turned on, and training is prompted to start.
The loudspeaker of system, which issue, to be putd question to and instructs, and tested children answer at once, and voice prompting carries out if " training " success Next command " training ", voice continues this order " training " if failure.
Each item order is successively trained, until complete order " training " finishes, subsequently enters " test " i.e. voice " identification " rank Section.
The effect of training stage is initialized to system, the basic parameter of specific tested children is obtained, thus system Can judge the response data of tested children in normal circumstances, and will be used as after the storage of these data subsequent data iteration and Matching.Specifically, the data that " training " stage generates are stored according to data type to parameterized template according to the default of system In, parameter template includes the parameters such as eye movement time data, voice data.
S12: system enters " test " i.e. voice " identification " after the stage, shows multiple dynamics and still image on the screen, The loudspeaker of system issue multiple enquirements and instruction.
When tested children observe the various images of test device viewing area, detect tested children's eyes observation image when Between;
After tested children's ear hears various problems and instruction, the signal of tested children speech expression is detected, system receives Voice input;
System calculates the defective value of the stability of corresponding attention according to the time that tested children's eyes observe image;
Tested children speech analog signal is converted to voice digital signal by system, and according to speech processes function library from language Characteristic signal text is extracted in sound digital signal;
At this point, system judging characteristic signal text whether match parameter template? the range of attention is obtained by judgement, is divided With property and metastatic defective value.
System first records the time of above-mentioned eyes observation image, and when with eye movement in parameterized template Between data be compared, the difference both calculated, and further judge the difference be in advance or lag.Secondly, being System compares characteristic signal text in conjunction with voice data.Finally, the result that two are compared carries out COMPREHENSIVE CALCULATING, gain attention The defective value of power stability.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention, And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above Change, modification will all be fallen within the scope of claims of the present invention.

Claims (7)

1. a kind of child attention detecting and analysing system, including speech recognition system, it is characterised in that:
The speech recognition system includes voice-input unit, speech digital processing unit;
Wherein, the speech digital processing unit includes single-chip microprocessor system, PLL phaselocked loop, ADC sampling module, DSP data fortune Calculate module, speech processes function library;
The voice-input unit receives the voice input of children, and automatically controls the gain of voice analog signal;
The voice analog signal is converted to voice digital signal by the ADC sampling module;
The DSP data operation module is quickly handled voice digital signal to be measured, is looked into according to speech processes function library Find the most similar signal text;
The single-chip microprocessor system adjusts the sample frequency of ADC sampling module according to the output of PLL phaselocked loop, and handle collects Voice digital signal stored.
2. child attention detecting and analysing system as described in claim 1, which is characterized in that it further include crystal oscillator, institute It states crystal oscillator and makes its output signal automatically track voice input signal by PLL phaselocked loop.
3. child attention detecting and analysing system as described in claim 1, which is characterized in that it further include computer motherboard, institute Single-chip microprocessor system is stated by the signal File Transfer to the computer motherboard, the computer motherboard is according to the signal text This output judging result.
4. child attention detecting and analysing system as described in claim 1, which is characterized in that the voice-input unit includes Microphone, microphone amplifying circuit, automatic gain control circuit;
Voice analog signal enters automatic gain control circuit by the microphone and microphone amplifying circuit, described automatic Gain control circuit adjusts the signal strength of the voice analog signal.
5. child attention detecting and analysing system as described in claim 1, which is characterized in that it further include Switching Power Supply, it is described Switching Power Supply is double to be grounded, and exports two-way voltage, all the way 3.3V, all the way 9V;9V voltage is voice-input unit power supply, 3.3V electricity Pressure is that speech digital processing unit is powered.
6. a kind of child attention method for testing and analyzing, which comprises the following steps:
Receive voice input;
To voice analog signal denoising and adjust gain;
Detect the starting and termination end points of voice analog signal;
Voice analog signal is converted into voice digital signal, and is extracted from voice digital signal according to speech processes function library Characteristic signal text;
Judging characteristic signal text whether match parameter template? if so, exporting corresponding judging result from parameterized template;
If it is not, then carrying out new pattern match;
Recognition result is exported according to pattern match.
7. child attention method for testing and analyzing as claimed in claim 6, which is characterized in that further comprising the steps of:
Show multiple dynamics and still image;
Issue multiple enquirements and instruction;
Detect the time of tested children's eyes observation image;
Detect the signal of tested children speech expression.
CN201710442588.XA 2017-06-13 2017-06-13 Child attention detecting and analysing system and method Pending CN109077740A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021102965A1 (en) * 2019-11-28 2021-06-03 垒途智能教科技术研究院江苏有限公司 Space transformation-based auxiliary test device for hyperkinetic syndrome of childhood, and test method
CN113160967A (en) * 2021-03-12 2021-07-23 中国科学院计算技术研究所 Method and system for identifying attention deficit hyperactivity disorder subtype

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030226A (en) * 1996-03-27 2000-02-29 Hersh; Michael Application of multi-media technology to psychological and educational assessment tools
US20040058306A1 (en) * 2002-09-17 2004-03-25 Elisabeth Wiig Test of parietal lobe function and associated methods
US20080255839A1 (en) * 2004-09-14 2008-10-16 Zentian Limited Speech Recognition Circuit and Method
CN101315770A (en) * 2008-05-27 2008-12-03 北京承芯卓越科技有限公司 System on speech recognition piece and voice recognition method using the same
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021102965A1 (en) * 2019-11-28 2021-06-03 垒途智能教科技术研究院江苏有限公司 Space transformation-based auxiliary test device for hyperkinetic syndrome of childhood, and test method
CN113160967A (en) * 2021-03-12 2021-07-23 中国科学院计算技术研究所 Method and system for identifying attention deficit hyperactivity disorder subtype

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