CN102542849B - Formative evaluation system - Google Patents

Formative evaluation system Download PDF

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Publication number
CN102542849B
CN102542849B CN 201210019047 CN201210019047A CN102542849B CN 102542849 B CN102542849 B CN 102542849B CN 201210019047 CN201210019047 CN 201210019047 CN 201210019047 A CN201210019047 A CN 201210019047A CN 102542849 B CN102542849 B CN 102542849B
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China
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student
answer
module
analytic
teacher
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CN 201210019047
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Chinese (zh)
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CN102542849A (en
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禹东川
韦钰
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东南大学
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Abstract

A formative evaluation system utilizes information technology means to achieve on-line real-time evaluation of education process, records and analyzes behaviors, facial expressions and physiological signal data of students in a real-time manner during the teaching process, roundly reflects the physiological state and the psychological state of the students during the teaching process, sends the physiological state and the psychological state to an evaluation monitoring end in a real-time manner, achieves real-time information feedback and interaction among front-line teaching, teaching management of a teaching affairs office and parents, solves the lack of the monitoring and the analysis on the physiological state and the psychological state of the students during the teaching process in a conventional teaching management system, solves the lack of the important parents link in the conventional teaching management system, and improves the scientificity, the efficiency and the real time of the teaching management. The formative evaluation system can also evaluate whether or not the specific scientific concepts for the students are formed, can record the physiological state and the psychological state of the students during the examination process compared with an instructional interaction or evaluation system that only records the accuracy of questions answered by the students simply, and can improve the scientificity and the accuracy of the evaluation.

Description

The formative evaluating system
Technical field
The invention belongs to teaching tool, for the online evaluation and test in real time of education process, is a kind of formative evaluating system.
Background technology
The epoch that develop rapidly a science and technology, science and technology is just profoundly changing the numerous areas such as social, economic, cultural, comprising the education sector as important basic social practice, revolutionary deep reform will inevitably therefore occur in education, and the revolutionary change of pedagogical studies method is the core of educational modernization.
One of problem existed in the China Today reform in education is exactly that vague and general theory is too many.Some theory is principle very, to what subject, can be suitable for, but de-too far away with practice.The reform in education should only not rest on theory, and key is to solve the problem that on classroom, how the teacher teaches, how the student learns, and this is the key problem that educational reform need to solve.The teacher can't only depend on vague and general theory just the student to be taught.How and how to teach and the problem learned must jointly be carried out positive research by researcher and teacher and carried out seeks.
For the reform and development that guarantees education can really be carried out under the guidance of the Scientific Outlook on Development, must be by Chinese educational reform on the positive research based on science; And today science and technology development for education, providing a opportunity of a lifetime, the person can carry out educational research from a new visual angle to make the educational research, namely from the visual angle of education to change (its core is neural pedagogy), carries out the educational research of real diagnosis.It is that whole process provides support that the scientific research of education and experiment need to use Modernized Information Technology.
In prior art, patented claim " interactive exam estimation system and method, real-time feedback system " is arranged (CN200910199402.8) and " wireless teaching interactive evaluation system " (CN201010571072.3) electronic tutoring system disclosed, but its essence is actually the answer of original papery investigation mode is realized by the electronics mode, just saved the certain operations step of conventional paper materialization teaching, as hai roll, rolling etc., still only limit to the accuracy of student's answer for the investigation of teaching process and state.
Summary of the invention
The problem to be solved in the present invention is: in modernizing teaching, to the demand of tutoring system is just simple, substitute original manual steps, need further intelligentized assisted teaching system, can embody all sidedly teaching process and state.
Technical scheme of the present invention is: the formative evaluating system comprises radio network gateway, teacher's hand held controller, some student's handheld terminals, some behavior records and analytic system, some portable physiological signal collections and analytic system, classroom computer system, Educational Affairs Office management system and some head of a family's handheld terminals; Student's handheld terminal, behavior record realize that by radio network gateway communication is connected with analytic system, teacher's hand held controller and teacher's computers system with analytic system, portable physiological signal collection, the classroom computer system is connected with Educational Affairs Office management system both-way communication, and the Educational Affairs Office management system is connected with head of a family's handheld terminal both-way communication;
Described student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system form sense terminals; Student's handheld terminal comprises timing module, keyboard, radio receiving transmitting module, realize wireless telecommunications by radio receiving transmitting module, obtain student's answer result by keyboard, timing module obtains the reaction time of student's answer, and sends result and reaction time to teacher's hand held controller and classroom computer system by radio receiving transmitting module; Behavior record and analytic system record analysis student's behavior and facial expression signal; Portable physiological signal collection and analytic system record analysis student's physiological signal;
Described teacher's hand held controller comprises the function selection key, display module and radio receiving transmitting module, the function selection key comprises " answer starts ", three kinds of " answer end " and " answer results ", when on described teacher's hand held controller, " answer starts " function selecting key is pressed, teacher's hand held controller sends synchronous enabling signal by radio network gateway with broadcast mode, realize all student's handheld terminals, behavior record and analytic system, synchronize startup between portable physiological signal collection and analytic system, control the classroom computer system by radio network gateway sends answer and starts voice simultaneously, the student hears that answer starts to start answer after voice, when on described teacher's hand held controller, " answer end " function selecting key is pressed, teacher's hand held controller is controlled the classroom computer system by radio network gateway and is sent answer end voice, the student hears that answer finishes to stop answer after suggestion voice, teacher's hand held controller sends " answer end " signal to all student's handheld terminals by radio network gateway with broadcast mode simultaneously, behavior record and analytic system and portable physiological signal collection and analytic system, student's handheld terminal transmission answer result and reaction time are to the classroom computer system, behavioural analysis result during behavior record and analytic system transmission student answer is to the classroom computer system, physiology parameter during portable physiological signal collection and analytic system transmission student answer is to the classroom computer system, the classroom computer system is added up the described answer result, reaction time, behavioural analysis result and the physiology parameter that receive, serve as a teacher on hand held controller when " answer result " function selecting key is pressed, teacher's hand held controller is controlled the statistics that the classroom computer system shows answer accuracy, reaction time, behavioural analysis result and physiology parameter.
Described behavior record and analytic system comprise embedded platform, video camera, be arranged on pressure transducer on School chair, be worn on acceleration transducer, radio receiving transmitting module and SD card module for reading and writing on student's wrist; Embedded platform is by the video camera real time record and analyze behavior and the facial expression in student's answer process, record posture position in student's answer process by the acceleration transducer that is arranged on the pressure transducer on School chair and be worn on student's wrist, the data of described behavior and facial expression and posture position are stored in SD card module for reading and writing, send in real time teacher's hand held controller and classroom computer system by radio receiving transmitting module simultaneously.
Described portable physiological signal collection and analytic system overall package, in the wear-type shell, comprise microprocessor, two brain wave acquisition module, the infrared heart rate acquisition module of earclip type, radio receiving transmitting module and SD card module for reading and writing of leading; Two brain wave acquisition modules of leading gather original EEG signals, and the infrared heart rate acquisition module of earclip type gathers the pulse signal of synchronizeing with heart rate, and described original EEG signals and pulse signal are stored in SD card module for reading and writing; Microprocessor is processed the data analysis in SD card module for reading and writing, extract the brain wave power spectrum of the reflection brain activity rhythm and pace of moving things from described original EEG signals, brain wave comprises δ ripple: 1-3Hz, θ ripple: 4-7Hz, α ripple: 8-13Hz, β ripple: 14-25Hz and γ ripple: more than 25Hz, calculate and produce HRV HRV time domain and Frequency Index from described pulse signal, described analysis processing result sends to teacher's hand held controller and classroom computer system in real time by radio receiving transmitting module.
Two brain wave acquisition modules of leading adopt dry electrode, and the scalp position of eeg signal acquisition is the bilateral prefrontal lobe, and reference electrode and ground electrode position respectively are arranged in the left and right ear-lobe.
Described classroom computer system is connected with radio network gateway by USB interface, " answer starts " and " answer end " signal that reception sends from teacher's hand held controller, receive simultaneously and store the data from student's wireless handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system; Described classroom computer system and Educational Affairs Office management system realize bidirectional wireless communication by the GPRS module, and the information that the classroom computer system sends comprises: δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum, HRV time domain and the Frequency Index of the distribution situation of the accuracy of student's attendance, learner answering questions problem, the required reaction time of answering a question, statistics of all student response time, student's behavioural analysis result, facial expression result of calculation, the electrical activity of brain rhythm and pace of moving things.
Described Educational Affairs Office management system and head of a family's handheld terminal are realized bidirectional wireless communication by the GPRS module; The information exchange that described Educational Affairs Office management system will be obtained from the classroom computer system is crossed the GPRS module forwards to head of a family's handheld terminal.
Between described classroom computer system, Educational Affairs Office management system and head of a family's handheld terminal, the information real-time Transmission.
Described head of a family's handheld terminal is mobile phone or the panel computer with GPRS communication function, or the hardware system with GPRS communication module.
Existing teaching auxiliary system is by original manually-operated electronization in essence mostly, combining information technology of the present invention and Neuscience technological means, designed a set of evaluating system that can the current teaching affairs of real-time complete reflection, realize the online evaluation and test in real time of education process, the educational research of real diagnosis is carried out at the visual angle of learning from education to change, complete embodiment teaching status directly perceived, it is a kind of intelligent tutoring backup system, more fully image data, analyzed, and obtains result.System real time record of the present invention and analysis student behavior, facial expression and the physiological signal datas such as brain electricity and HRV in teaching process, reflect physiology and the psychological condition of student in teaching process comprehensively, and be not only traditional answer accuracy analysis; And physiology and the psychological condition of student in teaching process will be issued educational administration management system and the head of a family in real time by the GPRS module, realize a line teaching, Educational Affairs Office teaching management, and head of a family three between the Real-time Feedback of information with mutual, solve the disappearance of this important step of the head of a family in existing teaching interaction system, improve efficiency and the real-time of teaching management.
System of the present invention can be used for the auxiliary evaluation and test specific scientific concept of student or whether knowledge point forms, with existing interactive teaching and learning or the appraisal system that only simply records learner answering questions problem accuracy, compare, the outstanding feature of the present invention is: record when all learner answering questions problems are required reacts and distribution, real time record and analysis student behavior, facial expression and the physiological signal datas such as brain electricity and HRV in the answer process, physiology and the psychological condition of multianalysis student in the answer process, thus science and the accuracy of evaluation and test improved; And these information will be issued the head of a family in real time by the GPRS module, efficiency and the real-time of raising teaching management.
The present invention utilizes infotech and Neuscience technology to assist the real-time evaluation and test problem that solves the education process.With at present domestic and international correlation technique, the present invention has following outstanding feature and progress:
A, infotech and Neuscience technology are incorporated in the education evaluation and test, a kind of teaching auxiliary system and corresponding educational research method based on real example is provided first;
B, omnidistance record and behavior, facial expression and physiology and the psychological condition of analysis student in teaching process, for teaching courseware quality, teaching method, the teaching efficiency of scientifically appraising the teacher provides quantizating index, also for the learning state of scientifically evaluating student in teaching process, provide quantizating index simultaneously, solve the limitation of existing teaching auxiliary system, while using system of the present invention to impart knowledge to students examination, the evaluation overcome Faculty and Students only simply relies on the deficiency of examination result, for the top-notch innovative personnel selects with cultivation, provides scientific basis;
C, include the head of a family real-time online information feedback of education process in interactive, realize a line teaching, the Educational Affairs Office teaching management, and between head of a family three, the Real-time Feedback of information is with mutual, in the technical scheme of existing teaching interaction system, the disappearance problem of this important step of the ubiquity head of a family, Educational Affairs Office management system and head of a family's handheld terminal that system of the present invention arranges, by the student, the teacher, teaching management, head of a family's contact is in a system, teaching management side can obtain current all teaching process states comprehensively on the one hand, on the other hand, also obtain each student simultaneously, teacher's teaching state, the information obtained is comprehensively careful, improve efficiency and the real-time of teaching management, and can be further used for realizing the individualized education service,
D, system of the present invention adopt portable physiological parameter acquisition system, whole process records the physiological parameter of student in teaching process, for analyzing physiology and the psychological condition of student in the education process, more fully embody student's learning state, overcome existing teaching and only be concerned about the student examination result and be indifferent to the physiology of student in learning process and the deficiency of psychological condition;
E, system of the present invention adopt portable behavior record and analytic system, whole process records behavior and the facial expression of student in teaching process, for analyzing behavior and the emotional state of student in the education process, more fully embody student's learning state and the state of mind, overcome existing teaching and only be concerned about the student examination result and be indifferent to the behavior of student in learning process and the deficiency of emotional state;
The data of F, system acquisition of the present invention and analysis result, not only record learner answering questions problem accuracy, in the time of also can recording the required reaction of all learner answering questions problems and distribution, real time record and analysis student behavior, facial expression and the physiological signal data in the answer process, physiology and the psychological condition of multianalysis student in the answer process, whether can be used for evaluating and testing the specific scientific concept of student or knowledge point and form, these information will be issued the head of a family in real time by the GPRS module;
G, system of the present invention not only can be used for the investigation to student's learning state, also can be used for the dynamic adjustment to teacher's real-time evaluation and teaching process simultaneously;
H, system of the present invention realize the state-detection of teaching under the uniform teaching condition to student group, simultaneously, the science data according to obtaining, also can be used for student's personalization examination and the dynamic adjustment of teaching process, and can implement class division according to appraisal result, improve efficiency of teaching;
I, the present invention adopt the GPRS communication technology realize a line teaching, Educational Affairs Office teaching management, and head of a family three between round-the-clock information feedback with mutual, rather than electronic teaching system only fed back to single, the unidirectional like this pattern of teacher by student's answer accuracy in the past, had high efficiency, comprehensive.
The accompanying drawing explanation
The composition frame chart that Fig. 1 is formative evaluating system of the present invention.
The composition frame chart of the system that Fig. 2 is teacher's hand held controller.
The composition frame chart of the system that Fig. 3 is student's handheld terminal.
The composition frame chart that Fig. 4 is behavior record and analytic system.
The composition frame chart that Fig. 5 is portable physiological signal collection and analytic system.
The composition frame chart that Fig. 6 is the classroom computer system.
The composition frame chart that Fig. 7 is the Educational Affairs Office Education Administration Information System.
The composition frame chart that Fig. 8 is head of a family's handheld terminal.
The composition frame chart that Fig. 9 is radio network gateway.
Embodiment
Formative evaluating system provided by the invention has following function: (1) real time record and behavior, facial expression and the physiological signal data of analysis student in teaching process reflect physiology and the psychological condition of student in teaching process comprehensively; (2) behavior, facial expression and physiological signal are issued educational administration management system and the head of a family in real time by the GPRS module, realize a line teaching, Educational Affairs Office teaching management, and head of a family three between the Real-time Feedback of information with mutual, solve the disappearance of this important step of the head of a family in existing teaching interaction system and patent, improve efficiency and the real-time of teaching management; (3) for evaluating and testing the specific scientific concept of student or knowledge point, whether form, record learner answering questions problem accuracy, while recording the required reaction of learner answering questions problem and distribution, record and analysis student behavior, facial expression and the physiological signal data in the answer process, these information will be issued the head of a family in real time by the GPRS module.
In order to realize above-mentioned functions, formative evaluating system provided by the invention, as shown in Figure 1, comprising: the equipment such as teacher's hand held controller 10, some student's handheld terminals 20, some behavior records and analytic system 30, some portable physiological signal collections and analytic system 40, classroom computer system 50, Educational Affairs Office management system 60, some head of a family's handheld terminals 70, radio network gateway 80; The information interaction relation of these equipment is as follows: described classroom computer system 50 is connected by USB interface with radio network gateway 80; Described teacher's hand held controller 10 is realized bidirectional wireless communication with radio network gateway 80 by radio receiving transmitting module; Described student's handheld terminal 20 is realized bidirectional wireless communication with radio network gateway 80 by radio receiving transmitting module; Described classroom computer system 50 realizes bidirectional wireless communication with Educational Affairs Office management system 60 by the GPRS module, realizes that the real-time online information between department of educational administration of school and line teaching is fed back with mutual, improves the ageing of teaching management; Described Educational Affairs Office management system 60 realizes bidirectional wireless communication with head of a family's handheld terminal 70 by the GPRS module, can realize that the real-time online information between the head of a family and teacher and department of educational administration of school is fed back with mutual.
Lower mask body is introduced design proposal and the embodiment of each part of system of the present invention.
1, teacher's hand held controller 10.As shown in Figure 2, teacher's hand held controller 10 comprises the functional units such as microprocessor 11, radio receiving transmitting module 12, keyboard 13, SD card module for reading and writing 14, LCD MODULE 15, power adjustment and administration module 16, lithium battery 17, USB charging module 18; Teacher's hand held controller 10 is realized wireless connections by radio receiving transmitting module 12 and radio network gateway 80, the communication between realization and the equipment such as classroom computer system 50, student's handheld terminal 20, behavior record and analytic system 30, portable physiological signal collection and analytic system 40; SD card module for reading and writing 14 can be stored in the SD card by SD card module for reading and writing 14 by δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum and the information datas such as HRV time domain and Frequency Index of the accuracy of student's attendance of acquisition, learner answering questions problem, distribution situation that answer a question required when reaction and full class even add up during all student responses of annual level, behavior in teaching process (comprising the answer process), facial expression, the electrical activity of brain rhythm and pace of moving things; Have three keys on keyboard 13, show respectively " answer starts ", " answer end " and " answer result " three groups of Chinese characters; By being connected with USB interface of computer or with the AC-DC device with USB interface, the charge function that USB charging module 18 is realized lithium battery 17; Because the lithium battery output voltage range is 3.7-4.2V, power adjustment and administration module 16 can provide reliable and stable 3.3V and 5V power supply to system all functions unit; When on keyboard 13, " answer starts " key is pressed, microprocessor 11 is realized wireless connections by radio receiving transmitting module 12 and radio network gateway 80, send synchronizing signal with broadcast mode and realize synchronizeing between all student's handheld terminals 20, all behavior records and the equipment such as analytic system 30 and all portable physiological signal collections and analytic system 40, control the sound equipment 55 of classroom computer system 50 simultaneously and broadcast the answer suggestion voice, the student starts answer after hearing the answer suggestion voice; When on keyboard 13, " answer end " key is pressed, microprocessor 11 is realized wireless connections by radio receiving transmitting module 12 and radio network gateway 80, when with broadcast mode, sending " answer ends " signal and allow student's handheld terminal 20 send answer results and reaction, behavior record and analytic system 30 transmission result of calculations, portable physiological signal collection and analytic system 40 transmission physiology parameters, control the sound equipment 55 of classroom computer system 50 simultaneously and broadcast answer end voice, the student hears that answer finishes to stop answer after suggestion voice; When on keyboard 13, " answer result " key is pressed, the results such as distribution when microprocessor 11 will show answer accuracy, reaction on LCD MODULE 15, the distribution of behavior parameter, the distribution of facial expression parameter, the distribution of physiology parameter.
2, student's handheld terminal 20.The functional units such as computing module 24, voltage stabilizing voltage reduction module 25, lithium battery 26, USB charging module 27 when as shown in Figure 3, student's handheld terminal 20 comprises microprocessor 21, radio receiving transmitting module 22, keyboard 23, reaction; Student's handheld terminal 20 is realized wireless connections by radio receiving transmitting module 22 and radio network gateway 80, the communication between the equipment such as realization and classroom computer system 50, teacher's hand held controller 10; Have five keys on keyboard 23, show respectively " A ", " B ", " C ", " D ", " E " five English capitalizations; By being connected with USB interface of computer or with the AC-DC device with USB interface, the charge function that USB charging module 27 is realized lithium battery 26; Because the lithium battery output voltage range is 3.7-4.2V, voltage stabilizing voltage reduction module 25 can provide reliable and stable 3.3V power supply to system all functions unit; What during reaction, computing module 24 was realized in essence is the function of high precision timing, its regularly the zero hour be that microprocessor 21 is received the moment of " answer starts " instruction of sending on teacher's hand held controller 10 by radio receiving transmitting module 22, be that on keyboard 23, letter key is pressed the moment that action occurs the finish time; Receive " answer end " instruction of sending on teacher's hand held controller 10 by radio receiving transmitting module 22 when microprocessor 21 after, the alphabetical key assignments of pressing on the reaction time result of calculation that during by reaction, computing module 24 obtains and keyboard 23 will send to teacher's hand held controller 10 and classroom computer system 50 by radio receiving transmitting module 22.
3, behavior record and analytic system 30.As shown in Figure 4, behavior record and analytic system 30 comprise embedded platform 31, be arranged on pressure measuring module 32 on School chair, be worn on acceleration analysis module 33, video camera 34, radio receiving transmitting module 35, SD card module for reading and writing 36, power adjustment and administration module 37 on student's wrist, the functional unit such as LCD MODULE 38, lithium battery 39, USB charging module 3A; By being connected with USB interface of computer or with the AC-DC device with USB interface, USB charging module 3A realizes the charge function to lithium battery 39; Because the lithium battery output voltage range is 3.7-4.2V, power adjustment and administration module 37 can provide reliable and stable 3.3V and 5V power supply to system all functions unit; Embedded platform 31 is realized record and analyzes at teaching process by video camera 34, comprise the middle school student's behavior of answer process and facial expression, record student's posture position in teaching process by the acceleration transducer 32 that is arranged on the pressure transducer 33 on School chair and be worn on student's wrist, these data and result of calculation are stored on the SD card by SD card module for reading and writing 36, and send in real time long-range teacher's hand held controller 10 and classroom computer system 50 by radio receiving transmitting module 35; In order to further facilitate the practical application of behavior record and analytic system 30, the acceleration analysis module 33 that is arranged on the pressure measuring module 32 on School chair and is worn on student's wrist is with respectively radio receiving transmitting module and power supply, can by wireless communication mode realize and embedded platform 31 between information interaction.
4, portable physiological parameter collection and analytic system 40.As shown in Figure 5, portable physiological signal collection and analytic system integral body are encapsulated in the shell that can wear, mainly comprise microprocessor 41, radio receiving transmitting module 42, SD card module for reading and writing 43, the infrared heart rate acquisition module 44 of earclip type, two functional units such as brain wave acquisition module 45, power adjustment and administration module 46, lithium battery 47, USB charging module 48 of leading; By being connected with USB interface of computer or with the AC-DC device with USB interface, the charge function that USB charging module 48 is realized lithium battery 47; Because the lithium battery output voltage range is 3.7-4.2V, power adjustment and administration module 46 can provide reliable and stable 3.3V and 5V power supply to system all functions unit; Two brain wave acquisition modules 45 of leading are comprised of unit such as dry electrode, three-stage amplifier, bandpass filter, A/D converters, dry electrode wherein 2 be arranged in the bilateral prefrontal lobe, and reference electrode and ground electrode are arranged in the ears ear-lobe in position respectively); The EEG signals obtained by dry electrode obtains the higher signal of signal to noise ratio (S/N ratio) through bandpass filter again after three-stage amplifier amplifies, this signal obtains stable original EEG signals again after high-precision a/d converter is processed, and microprocessor 41 will extract by existing known technology δ ripple (1-3Hz), θ ripple (4-7Hz), α ripple (8-13Hz), β ripple (14-25Hz), γ ripple (more than the 25Hz) power spectrum of the reflection brain activity rhythm and pace of moving things from original EEG signals; The infrared heart rate acquisition module 44 of earclip type is comprised of unit such as earclip type infrared sensor, amplifying circuit, comparer, wave filters, the signal obtained by the earclip type infrared sensor obtains the pulse signal of synchronizeing with heart rate after amplifying circuit amplifies after comparer and filter process again, this pulse signal directly is connected with the I/O mouth of microprocessor 41, and microprocessor 41 will calculate and produce HRV HRV time domain and Frequency Index by existing known technology; The δ ripple of the brain activity rhythm and pace of moving things, θ ripple, α ripple, β ripple, γ wave power spectrum and HRV time domain and Frequency Index, will send to long-range teacher's hand held controller 10 and classroom computer system 50 in real time by radio receiving transmitting module 42.
5, the classroom computer system 50.As shown in Figure 6, classroom computer system 50 by computing machine 51, USB interface 52, projector 53, display 54, sound equipment 55, GPRS module 56, etc. form, computing machine 51 is connected by RS232 or USB interface with GPRS module 56, and computing machine 51 is realized the control to GPRS module 56 by AT command set, computing machine 51 is connected with radio network gateway 80 by USB interface 57, " answer starts " that reception is sent from teacher's hand held controller 10 and " answer end " suggestion voice play instruction, receive simultaneously and store the data from student's handheld terminal 20, behavior record and analytic system 30, portable physiological signal collection and analytic system 40, computing machine 51 is realized bidirectional wireless communication by GPRS module 56 and Educational Affairs Office management system 60, attendance by the student, the accuracy of learner answering questions problem, the distribution situation that required when reaction and full class even add up during all student responses of annual level of answering a question, behavior in teaching process (comprising the answer process), facial expression, the δ ripple of the electrical activity of brain rhythm and pace of moving things, the θ ripple, the α ripple, the β ripple, γ wave power spectrum, and the information exchanges such as HRV time domain and Frequency Index are crossed the GPRS module and are sent in real time Educational Affairs Office management system 60, realize the ageing of teaching management work.
6, the Educational Affairs Office management system 60.As shown in Figure 7, the Educational Affairs Office management system comprises by computing machine 61, GPRS module 62, education informations interactive software platform 63, database management module 64, computing machine 61 is connected by RS232 or USB interface with GPRS module 62, and computing machine 61 is realized the control to GPRS module 62 by AT command set, computing machine 61 is realized bidirectional wireless communication with classroom computer system 50 by GPRS module 62, student's attendance that classroom computer system 50 is obtained, the accuracy of learner answering questions problem, the distribution situation that required when reaction and full class even add up during all student responses of annual level of answering a question, behavior in teaching process (comprising the answer process), facial expression, the δ ripple of the electrical activity of brain rhythm and pace of moving things, the θ ripple, the α ripple, the β ripple, γ wave power spectrum, and the information real-time release such as HRV time domain and Frequency Index are on education informations interactive software platform 63 and database management module 64, and education informations interactive software platform 63 by disposal data with short message, the form of text or picture sends to head of a family's handheld terminal 70, the head of a family also can be by the historical record on head of a family's handheld terminal 70 online searching teaching information interaction software platforms 63.
7, head of a family's handheld terminal 70.As shown in Figure 8, head of a family's handheld terminal 70 comprises the functional units such as embedded platform 71, GPRS module 72, education informations interactive module 73, SD card module for reading and writing 74, LCD MODULE 75, power adjustment and administration module 76, lithium battery 77, USB charging module 78, by being connected with USB interface of computer or with the AC-DC device with USB interface, the charge function that USB charging module 78 is realized lithium battery 77, because the lithium battery output voltage range is 3.7-4.2V, power adjustment and administration module 76 can provide reliable and stable power supply to system all functions unit, embedded platform 71 is connected by RS232 or USB interface with GPRS module 72, and embedded platform 71 is realized the control to GPRS module 72 by AT command set, embedded platform 71 is realized bidirectional wireless communication with Educational Affairs Office Education Administration Information System 60 by GPRS module 72, embedded platform 71 will obtain student's attendance by education informations interactive module 7, the accuracy of learner answering questions problem, the distribution situation that required when reaction and full class even add up during all student responses of annual level of answering a question, behavior in teaching process (comprising the answer process), facial expression, the δ ripple of the electrical activity of brain rhythm and pace of moving things, the θ ripple, the α ripple, the β ripple, γ wave power spectrum, and the information such as HRV time domain and Frequency Index are presented on LCD MODULE 75, obtained data are stored by SD module for reading and writing 74 simultaneously, in order to historical query, use.
8, radio network gateway 80.As shown in Figure 9, radio network gateway 80 turns usb interface module 83, power adjustment and administration module 84 etc. by microprocessor 81, radio receiving transmitting module 82, serial ports and forms; By the USB interface 57 with classroom computer system 50, be connected, power adjustment and administration module 84 obtain stable 3.3V power supply for radio network gateway 80 systems; Microprocessor 81 turns usb interface module 83 by serial ports and is connected with the USB interface 57 of classroom computer system 50, and adopts radio self organizing network technology and the equipment such as teacher's hand held controller 10, student's handheld terminal 20, behavior record and analytic system 30, portable physiological signal collection and analytic system 40 to realize bidirectional wireless communication.
According to the above, just can realize the present invention.
The present invention is based upon on education to change and Inquiry education theory foundation, utilizes infotech and Neuscience technology to solve the real-time evaluation and test problem of education process.Through research, design has proposed a kind of brand-new formative evaluating system, with current both at home and abroad correlation technique comparatively speaking, characteristics and progress that the present invention is outstanding are: (1) is incorporated into infotech and Neuscience technology in the education evaluation and test, and a kind of educational research method based on real example is provided; (2) omnidistance record and behavior, facial expression and physiology and the psychological condition of analysis student in teaching process, for teaching courseware quality, teaching method, the teaching efficiency of scientifically appraising the teacher provides quantizating index, also for the learning state of scientifically evaluating student in teaching process, provide quantizating index simultaneously, solve the evaluation to Faculty and Students in existing checking system and only simply rely on the deficiency of examination result, for the top-notch innovative personnel selects with cultivation, provide scientific basis; (3) the real-time online information feedback of the head of a family being included in to the education process is with interactive, realize a line teaching, Educational Affairs Office teaching management, with head of a family three between the Real-time Feedback and alternately of information, and can be further used for realizing the individualized education service; (4) adopt portable physiological parameter acquisition system, whole process records the physiological parameter of student in teaching process, for analyzing physiology and the psychological condition of student in the education process, more fully embody student's learning state, overcome existing teaching and only be concerned about the student examination result and be indifferent to the physiology of student in learning process and the deficiency of psychological condition; (5) adopt portable behavior record and analytic system, whole process records behavior and the facial expression of student in teaching process, for analyzing behavior and the emotional state of student in the education process, more fully embody student's learning state and the state of mind, overcome existing teaching and only be concerned about the student examination result and be indifferent to the behavior of student in learning process and the deficiency of emotional state; (6) data of system acquisition of the present invention and analysis result, not only record learner answering questions problem accuracy, in the time of also can recording the required reaction of all learner answering questions problems and distribution, real time record and analysis student behavior, facial expression and the physiological signal data in the answer process, physiology and the psychological condition of multianalysis student in the answer process, whether can be used for evaluating and testing the specific scientific concept of student or knowledge point and form, these information will be issued the head of a family in real time by the GPRS module; (7) system of the present invention not only can be used for the investigation to student's learning state, also can be used for the dynamic adjustment to teacher's real-time evaluation and teaching process simultaneously; (8) system of the present invention realizes the state-detection of teaching under the uniform teaching condition to student group, simultaneously, the science data according to obtaining, also can be used for student's personalization examination and the dynamic adjustment of teaching process, and can implement class division according to appraisal result, improve efficiency of teaching; (9) the present invention adopt the GPRS communication technology realize a line teaching, Educational Affairs Office teaching management, and head of a family three between round-the-clock information feedback with mutual, rather than electronic teaching system only fed back to single, the unidirectional like this pattern of teacher by student's answer accuracy in the past, had high efficiency, comprehensive.

Claims (7)

1. the formative evaluating system, is characterized in that comprising radio network gateway, teacher's hand held controller, some student's handheld terminals, some behavior records and analytic system, some portable physiological signal collections and analytic system, classroom computer system, Educational Affairs Office management system and some head of a family's handheld terminals; Student's handheld terminal, behavior record realize that by radio network gateway communication is connected with analytic system, teacher's hand held controller and classroom computer system with analytic system, portable physiological signal collection, the classroom computer system is connected with Educational Affairs Office management system both-way communication, and the Educational Affairs Office management system is connected with head of a family's handheld terminal both-way communication;
Described student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system form sense terminals; Student's handheld terminal comprises timing module, keyboard, radio receiving transmitting module, realize wireless telecommunications by radio receiving transmitting module, obtain student's answer result by keyboard, timing module obtains the reaction time of student's answer, and sends result and reaction time to teacher's hand held controller and classroom computer system by radio receiving transmitting module; Behavior record and analytic system record analysis student's behavior and facial expression signal, described behavior record and analytic system comprise embedded platform, video camera, be arranged on pressure transducer on School chair, be worn on acceleration transducer, radio receiving transmitting module and SD card module for reading and writing on student's wrist; Embedded platform is by the video camera real time record and analyze behavior and the facial expression in student's answer process, record posture position in student's answer process by the acceleration transducer that is arranged on the pressure transducer on School chair and be worn on student's wrist, the data of described behavior and facial expression and posture position are stored in SD card module for reading and writing, send in real time teacher's hand held controller and classroom computer system by radio receiving transmitting module simultaneously; Portable physiological signal collection and analytic system record analysis student's physiological signal;
Described teacher's hand held controller comprises the function selection key, display module and radio receiving transmitting module, the function selection key comprises " answer starts ", three kinds of " answer end " and " answer results ", when on described teacher's hand held controller, " answer starts " function selecting key is pressed, teacher's hand held controller sends synchronous enabling signal by radio network gateway with broadcast mode, realize all student's handheld terminals, behavior record and analytic system, synchronize startup between portable physiological signal collection and analytic system, control the classroom computer system by radio network gateway sends answer and starts voice simultaneously, the student hears that answer starts to start answer after voice, when on described teacher's hand held controller, " answer end " function selecting key is pressed, teacher's hand held controller is controlled the classroom computer system by radio network gateway and is sent answer end voice, the student hears that answer finishes to stop answer after suggestion voice, teacher's hand held controller sends " answer end " signal to all student's handheld terminals by radio network gateway with broadcast mode simultaneously, behavior record and analytic system and portable physiological signal collection and analytic system, student's handheld terminal transmission answer result and reaction time are to the classroom computer system, behavioural analysis result during behavior record and analytic system transmission student answer is to the classroom computer system, physiology parameter during portable physiological signal collection and analytic system transmission student answer is to the classroom computer system, the classroom computer system is added up the described answer result, reaction time, behavioural analysis result and the physiology parameter that receive, serve as a teacher on hand held controller when " answer result " function selecting key is pressed, teacher's hand held controller is controlled the statistics that the classroom computer system shows answer accuracy, reaction time, behavioural analysis result and physiology parameter.
2. formative evaluating system according to claim 1, it is characterized in that described portable physiological signal collection and analytic system overall package are in the wear-type shell, comprise microprocessor, two brain wave acquisition module, the infrared heart rate acquisition module of earclip type, radio receiving transmitting module and SD card module for reading and writing of leading; Two brain wave acquisition modules of leading gather original EEG signals, and the infrared heart rate acquisition module of earclip type gathers the pulse signal of synchronizeing with heart rate, and described original EEG signals and pulse signal are stored in SD card module for reading and writing; Microprocessor is processed the data analysis in SD card module for reading and writing, extract the brain wave power spectrum of the reflection brain activity rhythm and pace of moving things from described original EEG signals, brain wave comprises δ ripple: 1-3Hz, θ ripple: 4-7Hz, α ripple: 8-13Hz, β ripple: 14-25Hz and γ ripple: more than 25Hz, calculate and produce HRV HRV time domain and Frequency Index from described pulse signal, described analysis processing result sends to teacher's hand held controller and classroom computer system in real time by radio receiving transmitting module.
3. formative evaluating system according to claim 2, is characterized in that twoly leading the brain wave acquisition module and adopting dry electrode, and the scalp position of eeg signal acquisition is the bilateral prefrontal lobe, and reference electrode and ground electrode position respectively are arranged in the left and right ear-lobe.
4. formative evaluating system according to claim 1, it is characterized in that described classroom computer system is connected with radio network gateway by USB interface, " answer starts " and " answer end " signal that reception sends from teacher's hand held controller, receive simultaneously and store the data from student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system; Described classroom computer system and Educational Affairs Office management system realize bidirectional wireless communication by the GPRS module, and the information that the classroom computer system sends comprises: δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum, HRV time domain and the Frequency Index of the distribution situation of the accuracy of student's attendance, learner answering questions problem, the required reaction time of answering a question, statistics of all student response time, student's behavioural analysis result, facial expression result of calculation, the electrical activity of brain rhythm and pace of moving things.
5. formative evaluating system according to claim 1, is characterized in that described Educational Affairs Office management system and head of a family's handheld terminal realize bidirectional wireless communication by the GPRS module; The information exchange that described Educational Affairs Office management system will be obtained from the classroom computer system is crossed the GPRS module forwards to head of a family's handheld terminal.
6. according to the described formative evaluating system of claim 4 or 5, it is characterized in that between described classroom computer system, Educational Affairs Office management system and the head of a family's handheld terminal information real-time Transmission.
7. formative evaluating system according to claim 1, is characterized in that described head of a family's handheld terminal is mobile phone or the panel computer with GPRS communication function, or the hardware system with GPRS communication module.
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