CN102542849A - Formative evaluation system - Google Patents
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- CN102542849A CN102542849A CN2012100190473A CN201210019047A CN102542849A CN 102542849 A CN102542849 A CN 102542849A CN 2012100190473 A CN2012100190473 A CN 2012100190473A CN 201210019047 A CN201210019047 A CN 201210019047A CN 102542849 A CN102542849 A CN 102542849A
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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
Technical field
The invention belongs to teaching tool, be used to educate the evaluation and test of process online in real time, be a kind of formation property evaluating system.
Background technology
In the epoch that a science and technology develops rapidly; Science and technology is just profoundly changing numerous areas such as society, economy, culture; Comprising education sector as important basic social practice; Revolutionary deep reform will inevitably therefore take place in education, and the revolutionary change of pedagogical studies method is the core of educational modernization.
One of problem that exists in the current Chinese reform in education is exactly that vague and general theory is too many.Some theory is principleization very, can be suitable for what subject, but take off too far away with practice.The reform in education should only not rest on the theory, and key is to solve the problem that how teacher teaches on the classroom, how the student learns, and this is the key problem that educational reform need solve.The teacher can't only depend on vague and general theory just to teach the student.How and how to teach to carry out positive research jointly through researcher and teacher with the problem of learning and seek answer.
Can really under the guidance of the Scientific Outlook on Development, carry out for guaranteeing education reform and developing, must be with on the positive research of education in China reform based on science; And today, science and technology development provided a opportunity of a lifetime for education; The person can carry out educational research from a new visual angle to make the educational research, just carries out the educational research of real diagnosis from the visual angle that transforms pedagogy (its core is neural pedagogy).It is that whole process provides support that the scientific research of education needs to use modernized infotech with experiment.
In the prior art; There is patented claim " interactive exam estimation system and method, real-time feedback system " (CN200910199402.8) (CN201010571072.3) to disclose electronic tutoring system with " wireless teaching interactive evaluation system "; But the answer investigation mode that its essence is actually original paperyization realizes through the electronics mode; Just saved the certain operations step of conventional paper materialization teaching; Like 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 that the present invention will solve is: in the modernizing teaching, the just not simple conventional manual operation steps that substitutes of demand to tutoring system needs further intelligentized assisted teaching system, can embody teaching process and state all sidedly.
Technical scheme of the present invention is: formation property 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 through radio network gateway communication is connected with analytic system, teacher's hand held controller and teacher's 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;
Said student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system are formed sense terminals; Student's handheld terminal comprises timing module, keyboard, radio receiving transmitting module; Realize wireless telecommunications through 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 through 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;
Said teacher's hand held controller comprises function selecting button, display module and radio receiving transmitting module; The function selecting button comprises " answer begins ", " answer end " and " answer result " three kinds; " answer begins " is when function selecting key is pressed on said teacher's hand held controller; Teacher's hand held controller sends synchronous enabling signal through radio network gateway with broadcast mode; Realize the synchronous startup between all student's handheld terminals, behavior record and analytic system, portable physiological signal collection and the analytic system, send answer through radio network gateway control classroom computer system simultaneously and begin voice that the student hears that answer begins to begin answer behind the voice; " answer end " is when function selecting key is pressed on said teacher's hand held controller; Teacher's hand held controller sends answer through radio network gateway control classroom computer system and finishes voice; The student hears that answer finishes to stop answer behind the suggestion voice; Teacher's hand held controller sends " answer end " signal to all student's handheld terminals, behavior record and analytic system and portable physiological signal collection and analytic system through radio network gateway with broadcast mode simultaneously; Student's handheld terminal sends answer result and reaction time to classroom computer system; Behavioural analysis result during behavior record and the analytic system transmission student answer is computer system to the classroom, and portable physiological signal collection and analytic system are sent physiology parameter to the classroom computer system during student's answer; The classroom computer system is added up the said answer result, reaction time, behavioural analysis result and the physiology parameter that receive; Serve as a teacher on the hand held controller " answer result " when function selecting key is pressed, teacher's hand held controller control classroom computer system shows the statistics of answer accuracy, reaction time, behavioural analysis result and physiology parameter.
Said behavior record and analytic system comprise embedded platform, video camera, be installed in pressure transducer on the 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 through video camera real time record and behavior and the facial expression analyzed in student's answer process; Through being installed in the pressure transducer on the School chair and being worn on posture position in the acceleration transducer record student answer process on student's wrist; The data storage of said behavior and facial expression and posture position sends to teacher's hand held controller and classroom computer system through radio receiving transmitting module simultaneously in real time in SD card module for reading and writing.
Said portable physiological signal collection and analytic system overall package 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 in the wear-type shell; Two brain wave acquisition modules of leading are gathered original EEG signals, and the infrared heart rate acquisition module of earclip type is gathered and the synchronous pulse signal of heart rate, and said original EEG signals and pulse signal are stored in the SD card module for reading and writing; Microprocessor carries out analyzing and processing to the data in the SD card module for reading and writing; From said original EEG signals, extract the brain wave power spectrum of the reflection brain activity rhythm and pace of moving things; Brain wave comprises δ ripple: 1-3Hz, θ ripple: 4-7Hz, α ripple: 8-13Hz, β ripple: 14-25Hz and γ ripple: more than the 25Hz; From said pulse signal, calculate and produce HRV HRV time domain and Frequency Index, said analysis processing result sends to teacher's hand held controller and classroom computer system in real time through radio receiving transmitting module.
Two brain wave acquisition modules of leading adopt dried 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 left and right sides ear-lobe.
Said classroom computer system links to each other with radio network gateway through USB interface; Reception receives and stores the data from student's wireless handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system simultaneously from " answer begins " and " answer end " signal that teacher's hand held controller sends; Said classroom computer system and Educational Affairs Office management system realize the double-direction radio communication through the GPRS module, and the information that the classroom computer system is sent 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 student's the situation of turning out for work, the accuracy of learner answering questions problem, the required reaction time of answering a question, all student response time statistics, student's behavioural analysis result, facial expression result of calculation, the electrical activity of brain rhythm and pace of moving things.
Said Educational Affairs Office management system and head of a family's handheld terminal are realized the double-direction radio communication through the GPRS module; Said Educational Affairs Office management system will be given head of a family's handheld terminal through the GPRS module forwards from the information that the classroom computer system is obtained.
Between said classroom computer system, Educational Affairs Office management system and the head of a family's handheld terminal, the information real-time transmission.
Said 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 with original manually-operated electronization in essence mostly, combining information technology of the present invention and Neuscience technological means, designed one overlap can the current teaching situation of real-time complete reflection evaluating system; Realize the evaluation and test of education process online in real time, carry out the educational research of real diagnosis, directly perceived complete embodiment teaching situation from transforming educational visual angle; It is a kind of intelligent tutoring backup system; More comprehensively image data is analyzed, and obtains the result.System of the present invention real time record and behavior, facial expression and the physiological signal datas such as brain electricity and HRV of analysis student 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 the educational administration management system and the head of a family in real time through the GPRS module; Realize 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 the existing teaching interaction system, improve the efficient 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 the knowledge point forms; Compare with the interactive teaching and learning or the appraisal system of existing only simple record learner answering questions problem accuracy; The characteristic that the present invention gives prominence to is: write down 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 the science and the accuracy of evaluation and test improved; And these information will be issued the head of a family through the GPRS module, the efficient and the real-time of raising teaching management in real time.
The present invention utilizes infotech and Neuscience technology to come the auxiliary 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 quantizating index is provided simultaneously for the learning state of scientifically evaluating student in teaching process; Solve the limitation of existing teaching auxiliary system; When using system of the present invention to impart knowledge to students examination, overcome, scientific basis is provided for the top-notch innovative personnel selects with cultivation to the only simple deficiency that relies on examination result of the evaluation of Faculty and Students;
C, include the head of a family in the education process the real-time online information feedback with interactive; Realize line teaching, Educational Affairs Office teaching management, and head of a family three between the real-time feedback of information 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 is provided with; Student, teacher, teaching management, the head of a family are got in touch in a system, and teaching management can be with all current teaching process states of comprehensive acquisition, on the other hand on the one hand; Also obtain each student, teacher's teaching state simultaneously; The information that obtains is careful comprehensively, improves the efficient 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; The physiological parameter of omnidistance record student in teaching process; Be used for analyzing physiology and the psychological condition of student in the education process; More comprehensively embody the Students'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; Behavior and the facial expression of omnidistance record student in teaching process; Be used for analyzing behavior and the emotional state of student in the education process; More comprehensively embody the Students'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 write down learner answering questions problem accuracy; In the time of also can writing down 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; Whether physiology and the psychological condition of multianalysis student in the answer process can be used for evaluating and testing specific scientific concept of student or knowledge point and forms, and these information will be issued the head of a family in real time through the GPRS module;
G, system of the present invention not only can be used for the investigation to the Students'learning state, also can be used for the dynamic adjustment to teacher's real-time evaluation and teaching process simultaneously;
H, the system of the present invention state-detection that realization is imparted knowledge to students to student group under unified teaching condition; Simultaneously, the science data according to obtaining also can be used for student's the 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 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 with student's answer accuracy in the past, had high efficiency, comprehensive.
Description of drawings
Fig. 1 is the composition frame chart of the present invention's formation property evaluating system.
Fig. 2 is the composition frame chart of the system of teacher's hand held controller.
Fig. 3 is the composition frame chart of the system of student's handheld terminal.
Fig. 4 is the composition frame chart of behavior record and analytic system.
Fig. 5 is the composition frame chart of portable physiological signal collection and analytic system.
Fig. 6 is the composition frame chart of classroom computer system.
Fig. 7 is the composition frame chart of Educational Affairs Office teaching management system.
Fig. 8 is the composition frame chart of head of a family's handheld terminal.
Fig. 9 is the composition frame chart of radio network gateway.
Embodiment
Formation property 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 the educational administration management system and the head of a family in real time through the GPRS module; Realize 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 the patent, improve the efficient and the real-time of teaching management; Whether (3) be used to evaluate and test specific scientific concept of student or knowledge point forms; During the required reaction of record learner answering questions problem accuracy, record 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 through the GPRS module.
In order to realize above-mentioned functions; Formation property evaluating system provided by the invention; As shown in Figure 1, comprising: 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 of these equipment relation is as follows: said classroom computer system 50 and radio network gateway 80 link to each other through USB interface; Said teacher's hand held controller 10 is realized the double-direction radio communication with radio network gateway 80 through radio receiving transmitting module; Said student's handheld terminal 20 is realized the double-direction radio communication with radio network gateway 80 through radio receiving transmitting module; Said classroom computer system 50 realizes the double-direction radio communication with Educational Affairs Office management system 60 through the GPRS module, and the real-time online information feedback between realization department of educational administration of school and the line teaching improves the ageing of teaching management with mutual; Said Educational Affairs Office management system 60 realizes the double-direction radio communication with head of a family's handheld terminal 70 through the GPRS module, can realize between the head of a family and teacher and the department of educational administration of school the real-time online information feedback with alternately.
Following mask body is introduced the 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 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, 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 through radio receiving transmitting module 12 and radio network gateway 80; SD card module for reading and writing 14 can be stored in the SD card through SD card module for reading and writing 14 with the turn out for work accuracy of situation, learner answering questions problem, the distribution situation of adding up when answering a question required reaction and when full class even annual all student responses of level, behavior, the facial expression in the teaching process (comprising the answer process), δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum and information datas such as HRV time domain and Frequency Index of the electrical activity of brain rhythm and pace of moving things of the student who obtains; Have three keys on the keyboard 13, show " answer begins ", " answer end " and " answer result " three groups of Chinese characters respectively; Through linking to each other the charge function that USB charging module 18 is realized lithium battery 17 with the computing machine USB interface or with the AC-DC device of band USB interface; 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; " answer begins " is when key is pressed on keyboard 13; Microprocessor 11 is realized wireless connections through radio receiving transmitting module 12 and radio network gateway 80; Send synchronizing signal with broadcast mode and realize synchronous between all student's handheld terminals 20, all behavior records and analytic system 30 and the equipment such as 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 begins answer after hearing the answer suggestion voice; " answer end " is when key is pressed on keyboard 13; Microprocessor 11 is realized wireless connections through radio receiving transmitting module 12 and radio network gateway 80; When sending " answer ends " signal and let student's handheld terminal 20 send the answer results with reaction with broadcast mode, 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 behind the suggestion voice; On keyboard 13 " answer result " when key is pressed, 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.As shown in Figure 3, functional units such as computing module 24, voltage stabilizing step-down module 25, lithium battery 26, USB charging module 27 when 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, the communication between the equipment such as realization and classroom computer system 50, teacher's hand held controller 10 through radio receiving transmitting module 22 and radio network gateway 80; Have five keys on the keyboard 23, show " A ", " B ", " C ", " D ", " E " five English capitalizations respectively; Through linking to each other the charge function that USB charging module 27 is realized lithium battery 26 with the computing machine USB interface or with the AC-DC device of band USB interface; Because the lithium battery output voltage range is 3.7-4.2V, voltage stabilizing step-down module 25 can provide reliable and stable 3.3V power supply to system all functions unit; What computing module 24 was realized in essence during reaction is the function of high precision timing; Regularly the zero hour, to be microprocessor 21 received moment of " answer begins " instruction of sending on teacher's hand held controller 10 through radio receiving transmitting module 22 for it, and be that letter key is pressed the moment that action takes place on the keyboard 23 finish time; After microprocessor 21 receives that through radio receiving transmitting module 22 " the answer end " of sending on teacher's hand held controller 10 instructs, the alphabetical key assignments of pressing on reaction time result of calculation that computing module 24 obtains during with reaction and the keyboard 23 will send to teacher's hand held controller 10 and classroom computer system 50 through radio receiving transmitting module 22.
3, behavior record and analytic system 30.Functional units such as as shown in Figure 4, behavior record and analytic system 30 comprise embedded platform 31, be installed in pressure measuring module 32 on the 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, LCD MODULE 38, lithium battery 39, USB charging module 3A; Through linking to each other with the computing machine USB interface or with the AC-DC device of band 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 through video camera 34 and is analyzed at teaching process; Comprise middle school student's behavior of answer process and facial expression; Write down student's posture position in teaching process through the acceleration transducer 32 that is installed in the pressure transducer 33 on the School chair and be worn on student's wrist; These data and result of calculation are stored on the SD card through SD card module for reading and writing 36, and send to long-range teacher's hand held controller 10 and classroom computer system 50 in real time through 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 installed in the pressure measuring module 32 on the School chair and is worn on student's wrist is with radio receiving transmitting module and power supply respectively, can be through the information interaction between wireless communication mode realization and the embedded platform 31.
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 the infrared heart rate acquisition module of microprocessor 41, radio receiving transmitting module 42, SD card module for reading and writing 43, earclip type 44, 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; Through linking to each other the charge function that USB charging module 48 is realized lithium battery 47 with the computing machine USB interface or with the AC-DC device of band USB interface; 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 made up of unit such as dried electrode, three-stage amplifier, BPF., A/D converters, dried electrode wherein 2 be arranged in the bilateral prefrontal lobe, and reference electrode and ground electrode are arranged in the ears ear-lobe in the position respectively); Obtain the signal to noise ratio (S/N ratio) higher signal through BPF. again after the EEG signals process three-stage amplifier amplification by dried electrode acquisition; This signal is handled the back through high-precision a/d converter again and is obtained stable original EEG signals, and microprocessor 41 will extract 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 through existing known technology from original EEG signals; The infrared heart rate acquisition module 44 of earclip type is made up of unit such as earclip type infrared sensor, amplifying circuit, comparer, wave filters; After amplifying through amplifying circuit, the signal that is obtained by the earclip type infrared sensor obtains and the synchronous pulse signal of heart rate through after comparer and the filter process again; This pulse signal directly links to each other with the I/O mouth of microprocessor 41, and microprocessor 41 will calculate through existing known technology and produce HRV HRV time domain and Frequency Index; 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 through 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 links to each other through RS232 or USB interface with GPRS module 56, and computing machine 51 is realized the control to GPRS module 56 through AT command set; Computing machine 51 links to each other with radio network gateway 80 through USB interface 57; Reception receives and stores the data from student's handheld terminal 20, behavior record and analytic system 30, portable physiological signal collection and analytic system 40 simultaneously from " answer begins " and " answer end " suggestion voice play instruction that teacher's hand held controller 10 sends; Computing machine 51 is realized the double-direction radio communication through GPRS module 56 and Educational Affairs Office management system 60; The accuracy of student's the situation of turning out for work, learner answering questions problem, the distribution situation of adding up when answering a question required reaction and when full class even annual all student responses of level, behavior, the facial expression in the teaching process (comprising the answer process), δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum and the information such as HRV time domain and Frequency Index of the electrical activity of brain rhythm and pace of moving things are sent to Educational Affairs Office management system 60 in real time through the GPRS module, 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 links to each other through RS232 or USB interface with GPRS module 62, and computing machine 61 is realized the control to GPRS module 62 through AT command set; Computing machine 61 is realized the double-direction radio communication with classroom computer system 50 through GPRS module 62; Turn out for work δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum and the information real-time such as HRV time domain and Frequency Index of the accuracy of situation, learner answering questions problem, the distribution situation of adding up when answering a question required reaction and when full class even annual all student responses of level, the behavior in the teaching process (comprising the answer process), facial expression, the electrical activity of brain rhythm and pace of moving things of the student that classroom computer system 50 is obtained are published on education informations interactive software platform 63 and the database management module 64; And education informations interactive software platform 63 sends to head of a family's handheld terminal 70 with disposal data with the form of short message, text or picture, and the head of a family also can be through 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 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; Through linking to each other the charge function that USB charging module 78 is realized lithium battery 77 with the computing machine USB interface or with the AC-DC device of band USB interface; 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 links to each other through RS232 or USB interface with GPRS module 72, and embedded platform 71 is realized the control to GPRS module 72 through AT command set; Embedded platform 71 is realized the double-direction radio communication with Educational Affairs Office teaching management system 60 through GPRS module 72; Embedded platform 71 will obtain the turn out for work accuracy of situation, learner answering questions problem, the distribution situation of adding up when answering a question required when reaction and full class even annual all student responses of level, behavior, the facial expression in the teaching process (comprising the answer process), δ ripple, θ ripple, α ripple, β ripple, γ wave power spectrum and information such as HRV time domain and Frequency Index of the electrical activity of brain rhythm and pace of moving things of student through education informations interactive module 7 and be presented on the LCD MODULE 75; Simultaneously the data that obtained are stored through SD module for reading and writing 74, use in order to historical query.
8, radio network gateway 80.As shown in Figure 9, radio network gateway 80 changes usb interface module 83, power adjustment and administration module 84 etc. by microprocessor 81, radio receiving transmitting module 82, serial ports and forms; Through linking to each other with the USB interface 57 of classroom computer system 50, power adjustment and administration module 84 obtain stable 3.3V power supply and supply radio network gateway 80 systems to use; Microprocessor 81 changes usb interface module 83 through serial ports and links to each other with the USB interface 57 of classroom computer system 50, and adopts wireless self-organization network technology and 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 the double-direction radio communication.
According to the above, just can realize the present invention.
The present invention is based upon and transforms pedagogy and probe on the formula 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 formation evaluating system; With present both at home and abroad correlation technique comparatively speaking, the characteristics that the present invention gives prominence to progress are: (1) is incorporated into information technology and Neuscience technology to educate and evaluates and tests, 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 quantizating index is provided simultaneously for the learning state of scientifically evaluating student in teaching process; Solve in the existing checking system the only simple deficiency that relies on examination result of the evaluation of Faculty and Students, scientific basis is provided for the top-notch innovative personnel selects with cultivation; (3) the real-time online feedback information of the head of a family being included in the education process is with interactive, realize 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; The physiological parameter of omnidistance record student in teaching process; Be used for analyzing physiology and the psychological condition of student in the education process; More fully embody the Students'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 analytical system; Behavior and the facial expression of omnidistance record student in teaching process; Be used for analyzing behavior and the emotional state of student in the education process; More fully embody the Students'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 write down learner answering questions problem accuracy; In the time of also can writing down 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 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 the Students'learning state, also can be used for the dynamic adjustment to teacher's real-time evaluation and teaching process simultaneously; (8) the system of the present invention state-detection that realization is imparted knowledge to students to student group under unified teaching condition; Simultaneously, the science data according to obtaining also can be used for student's the 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 line teaching, Educational Affairs Office teaching management, and head of a family three between round-the-clock feedback information with mutual; Rather than electronic teaching system only fed back to single, the unidirectional like this pattern of teacher with student's answer accuracy in the past, had high efficiency, comprehensive.
Claims (8)
1. formation property 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 through radio network gateway communication is connected with analytic system, teacher's hand held controller and teacher's 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;
Said student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system are formed sense terminals; Student's handheld terminal comprises timing module, keyboard, radio receiving transmitting module; Realize wireless telecommunications through 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 through 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;
Said teacher's hand held controller comprises function selecting button, display module and radio receiving transmitting module; The function selecting button comprises " answer begins ", " answer end " and " answer result " three kinds; " answer begins " is when function selecting key is pressed on said teacher's hand held controller; Teacher's hand held controller sends synchronous enabling signal through radio network gateway with broadcast mode; Realize the synchronous startup between all student's handheld terminals, behavior record and analytic system, portable physiological signal collection and the analytic system, send answer through radio network gateway control classroom computer system simultaneously and begin voice that the student hears that answer begins to begin answer behind the voice; " answer end " is when function selecting key is pressed on said teacher's hand held controller; Teacher's hand held controller sends answer through radio network gateway control classroom computer system and finishes voice; The student hears that answer finishes to stop answer behind the suggestion voice; Teacher's hand held controller sends " answer end " signal to all student's handheld terminals, behavior record and analytic system and portable physiological signal collection and analytic system through radio network gateway with broadcast mode simultaneously; Student's handheld terminal sends answer result and reaction time to classroom computer system; Behavioural analysis result during behavior record and the analytic system transmission student answer is computer system to the classroom, and portable physiological signal collection and analytic system are sent physiology parameter to the classroom computer system during student's answer; The classroom computer system is added up the said answer result, reaction time, behavioural analysis result and the physiology parameter that receive; Serve as a teacher on the hand held controller " answer result " when function selecting key is pressed, teacher's hand held controller control classroom computer system shows the statistics of answer accuracy, reaction time, behavioural analysis result and physiology parameter.
2. formation property evaluating system according to claim 1 is characterized in that said behavior record and analytic system comprise embedded platform, video camera, are installed in pressure transducer on the School chair, are worn on acceleration transducer, radio receiving transmitting module and SD card module for reading and writing on student's wrist; Embedded platform is through video camera real time record and behavior and the facial expression analyzed in student's answer process; Through being installed in the pressure transducer on the School chair and being worn on posture position in the acceleration transducer record student answer process on student's wrist; The data storage of said behavior and facial expression and posture position sends to teacher's hand held controller and classroom computer system through radio receiving transmitting module simultaneously in real time in SD card module for reading and writing.
3. formation property evaluating system according to claim 1; It is characterized in that said 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 are gathered original EEG signals, and the infrared heart rate acquisition module of earclip type is gathered and the synchronous pulse signal of heart rate, and said original EEG signals and pulse signal are stored in the SD card module for reading and writing; Microprocessor carries out analyzing and processing to the data in the SD card module for reading and writing; From said original EEG signals, extract the brain wave power spectrum of the reflection brain activity rhythm and pace of moving things; Brain wave comprises δ ripple: 1-3Hz, θ ripple: 4-7Hz, α ripple: 8-13Hz, β ripple: 14-25Hz and γ ripple: more than the 25Hz; From said pulse signal, calculate and produce HRV HRV time domain and Frequency Index, said analysis processing result sends to teacher's hand held controller and classroom computer system in real time through radio receiving transmitting module.
4. formation property evaluating system according to claim 3 is characterized in that two lead the brain wave acquisition module and adopting dried electrode, and the scalp position of eeg signal acquisition is the bilateral prefrontal lobe, and reference electrode and ground electrode are arranged in left and right sides ear-lobe respectively.
5. formation property evaluating system according to claim 1; It is characterized in that said classroom computer system links to each other with radio network gateway through USB interface; Reception receives and stores the data from student's handheld terminal, behavior record and analytic system, portable physiological signal collection and analytic system simultaneously from " answer begins " and " answer end " signal that teacher's hand held controller sends; Said classroom computer system and Educational Affairs Office management system realize the double-direction radio communication through the GPRS module, and the information that the classroom computer system is sent 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 student's the situation of turning out for work, the accuracy of learner answering questions problem, the required reaction time of answering a question, all student response time statistics, student's behavioural analysis result, facial expression result of calculation, the electrical activity of brain rhythm and pace of moving things.
6. formation property evaluating system according to claim 1 is characterized in that said Educational Affairs Office management system and head of a family's handheld terminal are through the communication of GPRS module realization double-direction radio; Said Educational Affairs Office management system will be given head of a family's handheld terminal through the GPRS module forwards from the information that the classroom computer system is obtained.
7. according to claim 5 or 6 described formation property evaluating systems, it is characterized in that between said classroom computer system, Educational Affairs Office management system and the head of a family's handheld terminal information real-time transmission.
8. formation property evaluating system according to claim 1 is characterized in that said 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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| CN102542849B (en) | 2013-12-18 |
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