CN105433962A - Intelligent psychological teaching and psychological testing experiment device - Google Patents

Intelligent psychological teaching and psychological testing experiment device Download PDF

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CN105433962A
CN105433962A CN201510981062.XA CN201510981062A CN105433962A CN 105433962 A CN105433962 A CN 105433962A CN 201510981062 A CN201510981062 A CN 201510981062A CN 105433962 A CN105433962 A CN 105433962A
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teaching
module
psychological
terminal
video
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张东亮
王茜
罗晨
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Mudanjiang Normal University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/16Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/0205Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • A61B5/02055Simultaneously evaluating both cardiovascular condition and temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024Detecting, measuring or recording pulse rate or heart rate
    • A61B5/0245Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14542Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/16Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/165Evaluating the state of mind, e.g. depression, anxiety
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/06Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
    • G09B5/067Combinations of audio and projected visual presentation, e.g. film, slides
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00Simulators for teaching or training purposes

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Abstract

The invention discloses an intelligent psychological teaching and psychological testing experiment device which comprises a support and a psychological teaching device and a psychological testing device which are installed on the support. The psychological teaching device comprises a remote terminal and a teaching assembly; the psychological testing device comprises a testing chair, a scene simulator and a testing assembly; the scene simulator comprises virtual glasses and a touch sense key connected with the virtual glasses, and the testing assembly comprises a heart rate testing end and a body temperature testing end. According to the device, psychological teaching and psychological testing are integrated into a whole, a teacher knows the learning situation of students by instructing the students to operate the related psychological teaching device on the internet and performs scene simulation testing on the students through the psychological testing device by combining the scene simulator, the virtual glasses and the touch sense key connected with the virtual glasses, the heart rate and the body temperature in the psychological testing process can be tested, and the teaching effect and the psychological testing accuracy are greatly improved.

Description

A kind of Intelligent psychological teaching is used and psychological test experimental provision
Technical field
The invention belongs to teaching aid field, particularly relate to the teaching of a kind of Intelligent psychological and use and psychological test experimental provision.
Background technology
At present, existing Teaching of Psychology teaching aid is little, the pure theoretical mode lectured of teacher is relied on to carry out knowledge-transference, theoretical knowledge point and practical application is caused to contact defective tightness, student is poor for the learning effect of theoretical knowledge, often need when carrying out psychology testing to people people to do psychological detection topic, watch the mental status that psychological test figure etc. obtains people, and existing technology is provide paper or picture to people mostly, comprehensively try to figure out in concentrated gathering, operate and extremely bother, waste time and energy, add great work difficulty to tester.
Summary of the invention
The object of the present invention is to provide a kind of Intelligent psychological to impart knowledge to students to use and psychological test experimental provision, be intended to solve existing Teaching of Psychology method weak effect, the problem that psychological test is wasted time and energy.
The present invention realizes like this, Intelligent psychological teaching with and psychological test experimental provision comprise support and rack-mount Teaching of Psychology device and a psychological test device, described Teaching of Psychology device is connected with cloud data module with psychological test device;
Described Teaching of Psychology device comprises remote terminal and teaching component, described teaching component comprises arc support and is arranged on the display between described arc support, described display is provided with remote teaching module, in the bottom of described arc support, test body is installed, this test body bottom is for knocking spheroid, rattle balls surface distributes one group of pressure transducer, this pressure transducer and described remote teaching model calling; Described arc support upper outside face arranges chute respectively, and chute upper end is provided with keyboard drawer and speaker;
Described remote teaching module comprises central control unit and multiple learning device of being connected with described central control unit and data transmission module, this learning device comprises server module and multiple display terminal module, described display terminal module is used for downloading instructional video file from server module and cloud data module, and described multiple terminal through internet connects described server module;
Described server module specifically comprises: server data Transmit-Receive Unit, for receiving the video data that Teaching of Psychology terminal sends, and send the encoded video data of composite coding unit to each terminal, also for when the result of determination of adaptability judging unit is no, the terminal to correspondence sends resolution notice of change; Adaptability identifying unit, for judging that the video size of the subwindow whether resolution of video data is corresponding with described current video template adapts; Modular unit, for storing and set the current video template of current use; Composite coding unit, described when subwindow corresponding with each terminal in forward sight plate for each described video data being copied to respectively according to the video channel number of each terminal, to the coding video data of whole described current video template;
Described display terminal module comprises:
Public display module, for playing the described instructional video of display;
Video interactive module, for typing interaction person video signal and carried out showing and exporting;
Voice module, for typing interaction person voice signal and carried out playing and exporting;
Word display module, is carried out showing and export for typing letter signal;
Interactive handover module, for switching phonetic teaching and word teaching;
Time delay and time preset value are carried out judgement and compare by described interactive handover module, if be greater than the first preset value and be less than the second preset value described time delay, then only keep phonetic teaching and word to show; If be more than or equal to the second time preset value described time delay, then close video interactive and phonetic teaching, and only show word displaying;
The video data that described data transmission module sends for receiving each video interactive end; Judge whether the video size of the subwindow that the resolution of video data is corresponding with current video template adapts, if not, terminal to correspondence sends resolution notice of change, the resolution of the video data that this terminal exports according to described resolution notice of change change; Each described video data is copied to subwindow corresponding with each terminal in current video template by video channel number according to each terminal respectively; To the coding video data of whole described current video template, and encoded video data is sent to each described terminal;
Described psychological test device comprises test chair, Scene Simulation device, test suite; The sense of touch button that described Scene Simulation device comprises virtual glasses and is connected with described virtual glasses, described test suite comprises heart rate test end and temperature taking end;
Described temperature taking end is made up of first microprocessor, the first wireless communication module, infrared temperature sensor, the first power supply;
Described heart rate test end is made up of the second microprocessor, the second wireless communication module, blood oxygen probe sensor, second source; First wireless communication module of temperature taking end and the second wireless communication module of pulse detection module respectively with remote wireless communication device wireless communications, form wireless body area network;
Described infrared temperature sensor comprises non-contact infrared temperature sensor, temperature-difference thermoelectric heap amplifying circuit, temperature-compensating and amplifying circuit, A/D convertor circuit, governor circuit, display circuit and warning circuit, body temperature calibration module;
Described body temperature calibration module comprises infrared body temperature monitoring equipment, calibration data processing center, temperature measuring equipment, environmental parameter monitoring apparatus, environment parameter monitoring system, infrared body temperature monitoring system.
Further, described interactive handover module is built-in with sound receiver, the built-in frequency analysis unit of described sound receiver, phase curve computing unit, error calculation unit, acoustical signal recognition unit;
Described frequency analysis unit, analyzes the frequency signal of acoustical signal;
Described phase curve computing unit, calculates the phase curve carrying out with the time variations of the phase place of described frequency signal being similar to;
Described error calculation unit, calculates the error between described phase curve and the phase place of described frequency signal;
Described acoustical signal recognition unit, identifies the signal whether described acoustical signal is periodic sound based on described error.
Further, described non-contact infrared temperature sensor is piled amplifying circuit and temperature-compensating and amplifying circuit with temperature-difference thermoelectric respectively and is connected, and temperature-difference thermoelectric heap amplifying circuit and temperature-compensating and amplifying circuit are connected and are connected respectively to A/D convertor circuit;
Described A/D convertor circuit is a multi-channel A/D change-over circuit, and A/D convertor circuit is connected with governor circuit, and governor circuit is connected with display circuit and warning circuit; Described non-contact infrared temperature sensor adopts thermopile IR temperature sensor to realize the non-contact detecting of the thermistor signal to temperature signals and ambient temperature signal and the faint voltage signal of temperature difference heat pile and electro-hot regulator.
Further, described terminal is used for the video data of this locality during video teaching to send to described server module, receive the encoded video data that described server module sends, and show after the decoding of this encoded video data, described terminal is also for the resolution of the video data according to described resolution notice of change change output.
The present invention integrates Teaching of Psychology and psychological test, teacher can carry out web-based teaching by remote teaching module, students can on the server or cloud data module download learning materials, teacher can have one tentatively to understand to student learning situation by the Teaching of Psychology device that online instruction of papil operation is relevant, then psychological test device is passed through, in conjunction with Scene Simulation device, virtual glasses and the sense of touch button be connected with described virtual glasses carry out Scene Simulation test to student, simulated scenario can be presented to student by virtual glasses, and the effect of being personally on the scene is reached by sense of touch button, and can test the heart rate in psychological test process and body temperature, substantially increase the accuracy of teaching efficiency and psychological test.
Accompanying drawing explanation
Fig. 1 be the Intelligent psychological teaching that provides of the embodiment of the present invention with and the structural representation of psychological test experimental provision;
In figure: 1, support; 2, Teaching of Psychology device; 3, psychological test device.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.
As shown in Figure 1, the present invention realizes like this, the teaching of a kind of Intelligent psychological with and psychological test experimental provision comprises support 1 and the Teaching of Psychology device 2 that is arranged on support 1 and psychological test device 3, described Teaching of Psychology device 2 is connected with cloud data module with psychological test device 3;
Described Teaching of Psychology device 2 comprises remote terminal and teaching component, described teaching component comprises arc support and is arranged on the display between described arc support, described display is provided with remote teaching module, in the bottom of described arc support, test body is installed, this test body bottom is for knocking spheroid, rattle balls surface distributes one group of pressure transducer, this pressure transducer and described remote teaching model calling; Described arc support upper outside face arranges chute respectively, and chute upper end is provided with keyboard drawer and speaker;
Described remote teaching module comprises central control unit and multiple learning device of being connected with described central control unit and data transmission module, this learning device comprises server module and multiple display terminal module, described display terminal module is used for downloading instructional video file from server module and cloud data module, and described multiple terminal through internet connects described server module;
Described server module specifically comprises: server data Transmit-Receive Unit, for receiving the video data that Teaching of Psychology terminal sends, and send the encoded video data of composite coding unit to each terminal, also for when the result of determination of adaptability judging unit is no, the terminal to correspondence sends resolution notice of change; Adaptability identifying unit, for judging that the video size of the subwindow whether resolution of video data is corresponding with described current video template adapts; Modular unit, for storing and set the current video template of current use; Composite coding unit, described when subwindow corresponding with each terminal in forward sight plate for each described video data being copied to respectively according to the video channel number of each terminal, to the coding video data of whole described current video template;
Described display terminal module comprises:
Public display module, for playing the described instructional video of display;
Video interactive module, for typing interaction person video signal and carried out showing and exporting;
Voice module, for typing interaction person voice signal and carried out playing and exporting;
Word display module, is carried out showing and export for typing letter signal;
Interactive handover module, for switching phonetic teaching and word teaching;
Time delay and time preset value are carried out judgement and compare by described interactive handover module, if be greater than the first preset value and be less than the second preset value described time delay, then only keep phonetic teaching and word to show; If be more than or equal to the second time preset value described time delay, then close video interactive and phonetic teaching, and only show word displaying;
The video data that described data transmission module sends for receiving each video interactive end; Judge whether the video size of the subwindow that the resolution of video data is corresponding with current video template adapts, if not, terminal to correspondence sends resolution notice of change, the resolution of the video data that this terminal exports according to described resolution notice of change change; Each described video data is copied to subwindow corresponding with each terminal in current video template by video channel number according to each terminal respectively; To the coding video data of whole described current video template, and encoded video data is sent to each described terminal;
Described psychological test device 3 comprises test chair, Scene Simulation device, test suite; The sense of touch button that described Scene Simulation device comprises virtual glasses and is connected with described virtual glasses, described test suite comprises heart rate test end and temperature taking end;
Described temperature taking end is made up of first microprocessor, the first wireless communication module, infrared temperature sensor, the first power supply;
Described heart rate test end is made up of the second microprocessor, the second wireless communication module, blood oxygen probe sensor, second source; First wireless communication module of temperature taking end and the second wireless communication module of pulse detection module respectively with remote wireless communication device wireless communications, form wireless body area network;
Described infrared temperature sensor comprises non-contact infrared temperature sensor, temperature-difference thermoelectric heap amplifying circuit, temperature-compensating and amplifying circuit, A/D convertor circuit, governor circuit, display circuit and warning circuit, body temperature calibration module;
Described body temperature calibration module comprises infrared body temperature monitoring equipment, calibration data processing center, temperature measuring equipment, environmental parameter monitoring apparatus, environment parameter monitoring system, infrared body temperature monitoring system.
Further, described interactive handover module is built-in with sound receiver, the built-in frequency analysis unit of described sound receiver, phase curve computing unit, error calculation unit, acoustical signal recognition unit;
Described frequency analysis unit, analyzes the frequency signal of acoustical signal;
Described phase curve computing unit, calculates the phase curve carrying out with the time variations of the phase place of described frequency signal being similar to;
Described error calculation unit, calculates the error between described phase curve and the phase place of described frequency signal;
Described acoustical signal recognition unit, identifies the signal whether described acoustical signal is periodic sound based on described error.
Further, described non-contact infrared temperature sensor is piled amplifying circuit and temperature-compensating and amplifying circuit with temperature-difference thermoelectric respectively and is connected, and temperature-difference thermoelectric heap amplifying circuit and temperature-compensating and amplifying circuit are connected and are connected respectively to A/D convertor circuit;
Described A/D convertor circuit is a multi-channel A/D change-over circuit, and A/D convertor circuit is connected with governor circuit, and governor circuit is connected with display circuit and warning circuit; Described non-contact infrared temperature sensor adopts thermopile IR temperature sensor to realize the non-contact detecting of the thermistor signal to temperature signals and ambient temperature signal and the faint voltage signal of temperature difference heat pile and electro-hot regulator.
Further, described terminal is used for the video data of this locality during video teaching to send to described server module, receive the encoded video data that described server module sends, and show after the decoding of this encoded video data, described terminal is also for the resolution of the video data according to described resolution notice of change change output.
The present invention integrates Teaching of Psychology and psychological test, teacher can carry out web-based teaching by remote teaching module, students can on the server or cloud data module download learning materials, teacher can have one tentatively to understand to student learning situation by the Teaching of Psychology device that online instruction of papil operation is relevant, then psychological test device is passed through, in conjunction with Scene Simulation device, virtual glasses and the sense of touch button be connected with described virtual glasses carry out Scene Simulation test to student, simulated scenario can be presented to student by virtual glasses, and the effect of being personally on the scene is reached by sense of touch button, and can test the heart rate in psychological test process and body temperature, substantially increase the accuracy of teaching efficiency and psychological test.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.

Claims (4)

1. an Intelligent psychological teaching is used and psychological test experimental provision, it is characterized in that, described Intelligent psychological teaching with and psychological test experimental provision comprise support and rack-mount Teaching of Psychology device and psychological test device, described Teaching of Psychology device is connected with cloud data module with psychological test device;
Described Teaching of Psychology device comprises remote terminal and teaching component, described teaching component comprises arc support and is arranged on the display between described arc support, described display is provided with remote teaching module, in the bottom of described arc support, test body is installed, this test body bottom is for knocking spheroid, rattle balls surface distributes one group of pressure transducer, this pressure transducer and described remote teaching model calling; Described arc support upper outside face arranges chute respectively, and chute upper end is provided with keyboard drawer and speaker;
Described remote teaching module comprises central control unit and multiple learning device of being connected with described central control unit and data transmission module, this learning device comprises server module and multiple display terminal module, described display terminal module is used for downloading instructional video file from server module and cloud data module, and described multiple terminal through internet connects described server module;
Described server module specifically comprises: server data Transmit-Receive Unit, for receiving the video data that Teaching of Psychology terminal sends, and send the encoded video data of composite coding unit to each terminal, also for when the result of determination of adaptability judging unit is no, the terminal to correspondence sends resolution notice of change; Adaptability identifying unit, for judging that the video size of the subwindow whether resolution of video data is corresponding with described current video template adapts; Modular unit, for storing and set the current video template of current use; Composite coding unit, described when subwindow corresponding with each terminal in forward sight plate for each described video data being copied to respectively according to the video channel number of each terminal, to the coding video data of whole described current video template;
Described display terminal module comprises:
Public display module, for playing the described instructional video of display;
Video interactive module, for typing interaction person video signal and carried out showing and exporting;
Voice module, for typing interaction person voice signal and carried out playing and exporting;
Word display module, is carried out showing and export for typing letter signal;
Interactive handover module, for switching phonetic teaching and word teaching;
Time delay and time preset value are carried out judgement and compare by described interactive handover module, if be greater than the first preset value and be less than the second preset value described time delay, then only keep phonetic teaching and word to show; If be more than or equal to the second time preset value described time delay, then close video interactive and phonetic teaching, and only show word displaying;
The video data that described data transmission module sends for receiving each video interactive end; Judge whether the video size of the subwindow that the resolution of video data is corresponding with current video template adapts, if not, terminal to correspondence sends resolution notice of change, the resolution of the video data that this terminal exports according to described resolution notice of change change; Each described video data is copied to subwindow corresponding with each terminal in current video template by video channel number according to each terminal respectively; To the coding video data of whole described current video template, and encoded video data is sent to each described terminal;
Described psychological test device comprises test chair, Scene Simulation device, test suite; The sense of touch button that described Scene Simulation device comprises virtual glasses and is connected with described virtual glasses, described test suite comprises heart rate test end and temperature taking end;
Described temperature taking end is made up of first microprocessor, the first wireless communication module, infrared temperature sensor, the first power supply;
Described heart rate test end is made up of the second microprocessor, the second wireless communication module, blood oxygen probe sensor, second source; First wireless communication module of temperature taking end and the second wireless communication module of pulse detection module respectively with remote wireless communication device wireless communications, form wireless body area network;
Described infrared temperature sensor comprises non-contact infrared temperature sensor, temperature-difference thermoelectric heap amplifying circuit, temperature-compensating and amplifying circuit, A/D convertor circuit, governor circuit, display circuit and warning circuit, body temperature calibration module;
Described body temperature calibration module comprises infrared body temperature monitoring equipment, calibration data processing center, temperature measuring equipment, environmental parameter monitoring apparatus, environment parameter monitoring system, infrared body temperature monitoring system.
2. Intelligent psychological teaching as claimed in claim 1 is used and psychological test experimental provision, it is characterized in that, described interactive handover module is built-in with sound receiver, the built-in frequency analysis unit of described sound receiver, phase curve computing unit, error calculation unit, acoustical signal recognition unit;
Described frequency analysis unit, analyzes the frequency signal of acoustical signal;
Described phase curve computing unit, calculates the phase curve carrying out with the time variations of the phase place of described frequency signal being similar to;
Described error calculation unit, calculates the error between described phase curve and the phase place of described frequency signal;
Described acoustical signal recognition unit, identifies the signal whether described acoustical signal is periodic sound based on described error.
3. Intelligent psychological teaching as claimed in claim 1 is used and psychological test experimental provision, it is characterized in that, described non-contact infrared temperature sensor is piled amplifying circuit and temperature-compensating and amplifying circuit with temperature-difference thermoelectric respectively and is connected, and temperature-difference thermoelectric heap amplifying circuit and temperature-compensating and amplifying circuit are connected and are connected respectively to A/D convertor circuit;
Described A/D convertor circuit is a multi-channel A/D change-over circuit, and A/D convertor circuit is connected with governor circuit, and governor circuit is connected with display circuit and warning circuit; Described non-contact infrared temperature sensor adopts thermopile IR temperature sensor to realize the non-contact detecting of the thermistor signal to temperature signals and ambient temperature signal and the faint voltage signal of temperature difference heat pile and electro-hot regulator.
4. Intelligent psychological teaching as claimed in claim 1 is used and psychological test experimental provision, it is characterized in that, described terminal is used for the video data of this locality during video teaching to send to described server module, receive the encoded video data that described server module sends, and show after the decoding of this encoded video data, described terminal is also for the resolution of the video data according to described resolution notice of change change output.
CN201510981062.XA 2015-12-23 2015-12-23 Intelligent psychological teaching and psychological testing experiment device Pending CN105433962A (en)

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CN106710332A (en) * 2017-03-20 2017-05-24 海桂珍 Experimental device for psychological teaching and psychological testing
CN106910380A (en) * 2017-03-20 2017-06-30 海桂珍 A kind of method used based on Teaching of Psychology with psychological test experimental provision
CN107025614A (en) * 2017-03-20 2017-08-08 广东小天才科技有限公司 Method, system and device for detecting teaching effect in live video
CN108564073A (en) * 2018-06-20 2018-09-21 四川文理学院 A kind of classroom environment middle school student Emotion identification method and device
CN111599472A (en) * 2020-05-14 2020-08-28 重庆大学 Method and device for recognizing psychological states of students and computer

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