CN107015497A - It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method - Google Patents
It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method Download PDFInfo
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- CN107015497A CN107015497A CN201710017376.7A CN201710017376A CN107015497A CN 107015497 A CN107015497 A CN 107015497A CN 201710017376 A CN201710017376 A CN 201710017376A CN 107015497 A CN107015497 A CN 107015497A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 210000000744 eyelid Anatomy 0.000 claims abstract description 89
- 238000004891 communication Methods 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 239000011521 glass Substances 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 12
- 230000004397 blinking Effects 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 230000005622 photoelectricity Effects 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000001815 facial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 230000010365 information processing Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 102100026396 ADP/ATP translocase 2 Human genes 0.000 description 1
- 101000718417 Homo sapiens ADP/ATP translocase 2 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
Abstract
The invention discloses a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method, by the way that wireless optical mouse device is fabricated into glasses attachment device on spectacle frame, relative movement direction, displacement and the translational speed size in upper eyelid can be obtained, and these information are transferred to the exterior terminal equipment with radio communication function by wireless communication module；Exterior terminal equipment obtains eyelid and blinks data, eyelid is blinked data again and passes through network transmission to remote monitoring server by exterior terminal equipment by the processing to motion track；Remote monitoring server passes through the Treatment Analysis that data are blinked to eyelid, judges the learning state of learner.The present invention by blinking learner's eyelid information gather, transmit and handle in real time, and whether learner is judged, and then take appropriate measures in fatigue study.
Description
Technical field
It is more particularly to a kind of based on the tired shape of the learner being wirelessly transferred the present invention relates to a kind of detecting system and method
State detecting system and method.
Background technology
At present, the instrument of the fatigue study of prior art learner center is broadly divided into following two：Using shooting
Head (or other instruments) obtains eyes to gather the facial image information (mainly eyes) of learner, then by computer disposal
The number of times blinked, the fatigue conditions of learner are judged with this.This kind of detecting instrument exists in detection means and data processing
Following weak point：
1st, the head positioning problem of people：Generally require more than two camera and a high performance computer (by counting
Calculation machine controls a tracking head positioning, and another catches facial image), the collection of facial image information could be completed, is made
Complex operation is obtained, learner is not readily accomplished, it is difficult to obtain the information that eyes blink in real time.
2nd, the problem of information processing and transmission are present：
Front-end processing, i.e., in client by information processing into data signal, be so easy to transmission, but facial image information amount
Greatly, processing speed is slow, it is difficult to complete in real time.
Back-end processing, i.e., on the client by data processing terminal of the information by network transmission to distal end, this method
It is very high to the bandwidth requirement of network although the information processing of client can be avoided.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of based on the tired shape of the learner being wirelessly transferred
State detecting system and method, by the way that wireless optical mouse device is fabricated into glasses attachment device on spectacle frame, not only
Solve positioning and wear problem, and can accurately obtain that the eyelid of learner blinks number of times and real-time Transmission is to exterior terminal
Equipment and remote monitoring server are analyzed and processed, and finally judge the tired learning state of learner.
The technical solution adopted for the present invention to solve the technical problems is：
It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred, including a glasses, in addition to installed in described
Wireless optical mouse device on glasses, the exterior terminal equipment with radio communication function and remote monitoring server；It is described
Wireless optical mouse device is connected with the exterior terminal equipment, the exterior terminal equipment and the remote monitoring server phase
Even；The wireless optical mouse device blinks information acquisition module and wireless communication module including eyelid；The eyelid blinks letter
Breath acquisition module is used to blink information by the eyelid that light engine gathers learner in real time, and the eyelid is blinked into information hair
Give the wireless communication module；The wireless communication module is used to the eyelid blinking information transfer to the exterior terminal
Equipment, and receive the voice reminder information that the exterior terminal equipment is sent；The exterior terminal equipment is used for basis and received
Eyelid blink information analysis go out to open eyes, close one's eyes and blink number of times, and by opening eyes, close one's eyes and blink number of times be sent to it is described
Remote monitoring server；The remote monitoring server is used to analyze according to the eye opening, eye closing and the number of winks that receive
The learning state of habit person；Wherein, the wireless communication module includes model nRF24LE1 radio transmitting and receiving chip, described wireless
The eyelid that transceiving chip sends collection by radio-frequency antenna blinks information and gives exterior terminal equipment.
The glasses include two legs of spectacles of two spectacle-frames and the external opposite ends positioned at two spectacle-frames；The wireless photoelectric mouse
Device for mark is connected by a support with any spectacle-frame, is connected by another support with any leg of spectacles.
The wireless optical mouse device is also equipped with power supply module, for for the eyelid blink information acquisition module and
Wireless communication module power supply；The power supply module includes rechargeable battery, battery charge control circuit, USB charging inlets and electricity
Source switch；The USB charging inlets are connected with the input of the battery charge control circuit, the battery charge control circuit
Output the positive pole of rechargeable battery is connected to by the power switch, the input of the mu balanced circuit passes through the power switch
The positive pole of rechargeable battery is connected to, the output of mu balanced circuit, which constitutes feeder ear, to be used to control to blink information gathering mould for the eyelid
Block and wireless communication module power supply.
The eyelid blink the light engine chip of information acquisition module including model PAW3205, light emitting diode and
Photoelectricity acquisition port；The light engine chip is connected with the Light-Emitting Diode, and the light that the Light-Emitting Diode is sent shines
Penetrate is used to gather eyelid and blink information in photoelectricity collection discharge surface；The light engine chip passes through the radio communication mold
The eyelid of block transmitting collection blinks information.
The wireless communication module includes model nRF24LE1 radio transmitting and receiving chip, and the radio transmitting and receiving chip passes through
The eyelid of radio-frequency module transmission collection blinks information and gives exterior terminal equipment.
It is a kind of based on the learner's fatigue state detection method being wirelessly transferred, comprise the following steps：
Eyelid, which blinks information acquisition module and gathers the eyelid of learner in real time by light engine, blinks information, and will be described
Eyelid blinks information and is sent to wireless communication module；
The eyelid is blinked information transfer to the exterior terminal equipment with radio communication function by wireless communication module；
Exterior terminal equipment blinks information analysis according to the eyelid received and goes out eye opening, the number of times closed one's eyes and blinked, and will
The number of times open eyes, closed one's eyes and blink is sent to remote monitoring server；
Remote monitoring server analyzes the learning state of learner according to the eye opening, eye closing and number of winks that receive.
The exterior terminal equipment according to the eyelid received blink information analysis go out to open eyes, close one's eyes and blink number of times
Method is：
When it is constant in home position that the eyelid that exterior terminal equipment is received, which blinks information, it is judged as opening eyes；When outer
The eyelid that portion's terminal device is received blinks information when moving down and not returning in preset time, to be judged as closing one's eyes；When
The eyelid that exterior terminal equipment is received blinks information to move down and being returned in preset time, is judged as blink.
The wireless optical mouse device peace that information acquisition module and the wireless communication module are constituted is blinked by the eyelid
Loaded on a glasses, when the eyelid blinks information acquisition module and blinks information to the eyelid of learner and be acquired, learner needs
Wear the glasses.
The present invention's is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method, by by wireless photoelectric
Mouse apparatus is fabricated to glasses attachment device on the spectacle frame, can obtain upper eyelid relative movement direction, it is mobile away from
From with translational speed size, and these information are transferred to the exterior terminal with radio communication function by wireless communication module
Equipment；Exterior terminal equipment obtains eyelid and blinks data, exterior terminal equipment again blinks eyelid by the processing to motion track
Dynamic data pass through network transmission to remote monitoring server；Remote monitoring server passes through the processing point that data are blinked to eyelid
Analysis, judges the learning state of learner.
The beneficial effect that the technical scheme that the present invention is provided is brought is：
1st, the present invention directly installs wireless optical mouse device on the glasses of prior art, can not only utilize glasses side
Just wear feature to solve positioning and wear problem, and detect that the eyelid of learner blinks information using light engine, itself and face
Portion's image/picture information gathering is compared with the mode of traditional detection brain wave, with data volume it is small, direct, need not it is complicated plus
Work processing can be transmitted, and the transmission requirement of network data can be met completely, parent or school can be helped accurately and timely
The tired level of learning of learner is judged on ground, and then takes appropriate measures；
2nd, the eyelid that the present invention is gathered to light engine using wireless communication module blinks information and is transmitted, with from
The features such as connecting data wire and be easy to operate；
3rd, the main control chip of wireless communication module of the invention uses model nRF24LE1 chip, can receive optics
The eyelid of learner of engine chip collection blinks information, and is sent to exterior terminal equipment and is handled.
The present invention is described in further detail below in conjunction with drawings and Examples；But one kind of the present invention is based on wireless biography
Defeated learner's fatigue state detecting system and method are not limited to embodiment.
Brief description of the drawings
Fig. 1 is the theory diagram of the embodiment of the present invention；
Fig. 2 is the structural representation one of the glasses (being provided with wireless optical mouse device) of the embodiment of the present invention；
Fig. 3 is the structural representation two of the glasses (being provided with wireless optical mouse device) of the embodiment of the present invention；
Fig. 4 is that the eyelid of the present invention blinks the circuit diagram of information acquisition module and wireless communication module；
Fig. 5 is the power supply module circuit diagram of the present invention.
Embodiment
Refer to shown in Fig. 1 to 3, of the invention is a kind of based on the learner's fatigue state detecting system being wirelessly transferred, bag
A glasses 1 are included, in addition to the wireless optical mouse device 2 on the glasses 1, the outside with radio communication function are eventually
End equipment 3 and remote monitoring server 4；The wireless optical mouse device 2 passes through radio communication with the exterior terminal equipment 3
It is connected, the exterior terminal equipment 3 is connected with the remote monitoring server 4 by INTERNET；Wherein：
The wireless optical mouse device 2 blinks information acquisition module 21 and wireless communication module 23 including eyelid；It is described
Eyelid, which blinks information acquisition module 21 and is used to gathering the eyelid of learner in real time by light engine, blinks information, and by the eye
Eyelid blinks information and is sent to the wireless communication module 23；The wireless communication module 23 is used to the eyelid blinking information biography
It is defeated by the exterior terminal equipment 3；
The exterior terminal equipment 3 goes out eye opening, eye closing and blink for blinking information analysis according to the eyelid received
Number of times, and will open eyes, close one's eyes and blink number of times be sent to the remote monitoring server 4；
The remote monitoring server 4 is used to analyze learner's according to the eye opening, eye closing and the number of winks that receive
Learning state.
Further, the glasses 1 include two legs of spectacles of two spectacle-frames 11 and the external opposite ends positioned at two spectacle-frames 11
12；The wireless optical mouse device 2 is connected by a support 5 with any spectacle-frame 11, by another support 5 with appointing
Leg of spectacles 12 is connected described in one.
Further, the wireless optical mouse device 2 is also equipped with power supply module 22, for blinking letter for the eyelid
Breath acquisition module 21 and wireless communication module 23 are powered.Specifically, as shown in Fig. 4 to 5, the power supply module 22 includes chargeable
Battery BAT, battery charge control circuit U1, USB charging inlet 221 and power switch 222 (i.e. power switch SW1 switches)；Institute
The input that USB charging inlets 221 are stated with the battery charge control circuit U1 is connected, the battery charge control circuit U1's
Output is connected to rechargeable battery BAT positive pole by the power switch 222, and the input of the mu balanced circuit U2 passes through the electricity
Source switch 222 is connected to the positive pole of rechargeable battery, and mu balanced circuit U2 output, which constitutes feeder ear VDD, to be used to control to be the eyelid
Blink information acquisition module 21 and wireless communication module 23 is powered.When needing charging, the power switch 222 is pressed, power supply is opened
Close SW1 to connect, the USB charging inlets 221 are connected into regular handset charger to fill the rechargeable battery BAT
Electricity；When needing power supply, the power switch 222 (i.e. power switch SW1 switches are pressed) is pressed, feeder ear VDD is the eye
Eyelid blinks information acquisition module 21 and wireless communication module 23 is powered.Further, diode D102 is common cathode diode, can
Meet charging, power is carried out simultaneously.
Further, the eyelid blink information acquisition module 21 including model PAW3205 light engine chip U3,
Light emitting diode D1 and photoelectricity acquisition port 211；The light engine chip U3 is connected with the Light-Emitting Diode D1, the hair
The light that light diode D1 is sent is radiated at the surface of photoelectricity acquisition port 211 and blinks information for gathering eyelid；The optics
The eyelid that engine chip U3 launches collection by the wireless communication module 23 blinks information.Specifically, crystal oscillator built in PAW3205
Clock, DSP process chips and mouse LED light source control system, brightness that can be automatically to light emitting diode D1 are controlled.
PAW3205 light engines chip includes 8 pins, respectively the 1st pin NC, the 2nd pin MOTSWK, the 3rd pin SDIO, the 4th
Pin SCLK, the 5th pin LED, the 6th pin VSS, the 7th pin VDD, the 8th pin VDDA, wherein, the 2nd pin is mobile detection
Output end；3rd pin is serial i/O Interface；4th pin is serial clock terminal；5th pin is photodiode input, with
The negative electrode of the light emitting diode D1 is connected；7th pin is power end, is connected with the feeder ear VDD of the mu balanced circuit.
Further, the wireless communication module 23 includes model nRF24LE1 radio transmitting and receiving chip U4, and this is wireless
Transceiving chip U4 blinks information to exterior terminal equipment 3 by the radio-frequency antenna ANT eyelids for sending collection.
Specifically, the 24th of radio transmitting and receiving chip U4 the, 27 pins are VDD, for the feeder ear with the mu balanced circuit U2
VDD is connected reception input power.
Specifically, radio transmitting and receiving chip U4 the 22nd pin ANT2 is blinked by the radio-frequency antenna ANT eyelids for sending collection
Information is to exterior terminal equipment 3.
Specifically, the 2nd pin MOTSWK of the light engine chip U3 draws with the 12nd of the radio transmitting and receiving chip U4
Pin P0.6 is connected, and the 3rd pin S-DIO is connected with the 28th pin P1.5 of the radio transmitting and receiving chip U4, the 4th pin SCLK and institute
The 18th pin P1.4 for stating radio transmitting and receiving chip U4 is connected.
It is a kind of based on the learner's fatigue state detection method being wirelessly transferred, comprise the following steps：
Eyelid, which blinks information acquisition module 21 and gathers the eyelid of learner in real time by light engine, blinks information, and by institute
State eyelid and blink information and be sent to wireless communication module 23；
The eyelid is blinked information transfer to the exterior terminal equipment with radio communication function by wireless communication module 23
3, and receive the voice reminder information of the transmission of exterior terminal equipment 3；
Exterior terminal equipment 3 blinks information analysis according to the eyelid received and goes out eye opening, the number of times closed one's eyes and blinked, and will
The number of times open eyes, closed one's eyes and blink is sent to remote monitoring server 4；
Remote monitoring server 4 analyzes the learning state of learner according to the eye opening, eye closing and number of winks that receive,
And chosen whether to send learner voice reminder information according to analysis result.
The exterior terminal equipment 3 blinks information analysis according to the eyelid received and goes out eye opening, the number of times closed one's eyes and blinked
Method be：
When it is constant in home position that the eyelid that exterior terminal equipment 3 is received, which blinks information, it is judged as opening eyes；When outer
The eyelid that portion's terminal device 3 is received blinks information when moving down and not returning in preset time, to be judged as closing one's eyes；When
The eyelid that exterior terminal equipment 3 is received blinks information to move down and being returned in preset time, is judged as blink.
The wireless optical mouse dress that information acquisition module 21 and the wireless communication module 23 are constituted is blinked by the eyelid
Put 2 and be installed on a glasses 1, when the eyelid blinks information acquisition module 21 and blinks information to the eyelid of learner and be acquired,
Learner need to wear the glasses 1.
Above-described embodiment is only used for further illustrating that the present invention's detects system based on the learner's fatigue state being wirelessly transferred
System and method, but the invention is not limited in embodiment, what every technical spirit according to the present invention was made to above example
Any simple modification, equivalent variations and modification, each fall within the protection domain of technical solution of the present invention.
Claims (7)
1. it is a kind of based on the learner's fatigue state detecting system being wirelessly transferred, including a glasses, it is characterised in that also including peace
Wireless optical mouse device on the glasses, the exterior terminal equipment with radio communication function and remote monitoring service
Device；The wireless optical mouse device is connected with the exterior terminal equipment, the exterior terminal equipment and the remote monitoring
Server is connected；The wireless optical mouse device blinks information acquisition module and wireless communication module including eyelid；The eye
Eyelid, which blinks information acquisition module and is used to gathering the eyelid of learner in real time by light engine, blinks information, and the eyelid is blinked
Dynamic information is sent to the wireless communication module；The wireless communication module is used to the eyelid blinking information transfer to described
Exterior terminal equipment, and receive the voice reminder information that the exterior terminal equipment is sent；The exterior terminal equipment is used for root
Information analysis, which is blinked, according to the eyelid received goes out eye opening, the number of times closed one's eyes and blinked, and the number of times that will be opened eyes, and close one's eyes and blink is sent out
Give the remote monitoring server；The remote monitoring server is used for according to eye opening, eye closing and the number of winks received
Analyze the learning state of learner；
Wherein, the wireless communication module includes model nRF24LE1 radio transmitting and receiving chip, and the radio transmitting and receiving chip leads to
Cross radio-frequency antenna and send the eyelid of collection and blink information and give exterior terminal equipment.
2. it is according to claim 1 based on the learner's fatigue state detecting system being wirelessly transferred, it is characterised in that described
Glasses include two legs of spectacles of two spectacle-frames and the external opposite ends positioned at two spectacle-frames；The wireless optical mouse device passes through one
Support is connected with any spectacle-frame, is connected by another support with any leg of spectacles.
3. it is according to claim 1 based on the learner's fatigue state detecting system being wirelessly transferred, it is characterised in that described
Wireless optical mouse device is also equipped with power supply module, for blinking information acquisition module and wireless communication module for the eyelid
Power supply；The power supply module includes rechargeable battery, battery charge control circuit, USB charging inlets and power switch；It is described
USB charging inlets are connected with the input of the battery charge control circuit, and the output of the battery charge control circuit passes through
The power switch is connected to the positive pole of rechargeable battery, and the input of the mu balanced circuit is connected to chargeable by the power switch
The positive pole of battery, the output of mu balanced circuit, which constitutes feeder ear, to be used to control to blink information acquisition module and channel radio for the eyelid
Believe module for power supply.
4. it is according to claim 1 based on the learner's fatigue state detecting system being wirelessly transferred, it is characterised in that described
Eyelid, which blinks information acquisition module, includes model PAW3205 light engine chip, light emitting diode and photoelectricity acquisition port；Institute
State light engine chip with the Light-Emitting Diode to be connected, the light that the Light-Emitting Diode is sent is radiated at the photoelectricity and adopted
Collection discharge surface blinks information for gathering eyelid；The light engine chip launches the eye of collection by the wireless communication module
Eyelid blinks information.
5. it is a kind of based on the learner's fatigue state detection method being wirelessly transferred, it is characterised in that to comprise the following steps：
Eyelid, which blinks information acquisition module and gathers the eyelid of learner in real time by light engine, blinks information, and by the eyelid
Blink information and be sent to wireless communication module；
The eyelid is blinked information transfer to the exterior terminal equipment with radio communication function by wireless communication module；
Exterior terminal equipment according to the eyelid received blink information analysis go out open eyes, close one's eyes and blink number of times, and will open eyes,
Close one's eyes and the number of times of blink is sent to remote monitoring server；
Remote monitoring server analyzes the learning state of learner according to the eye opening, eye closing and number of winks that receive.
6. it is according to claim 5 based on the learner's fatigue state detection method being wirelessly transferred, it is characterised in that described
Exterior terminal equipment blinks information analysis according to the eyelid received and goes out to open eyes, closes one's eyes and the method for number of times of blink is：
When it is constant in home position that the eyelid that exterior terminal equipment is received, which blinks information, it is judged as opening eyes；When outside whole
The eyelid that end equipment is received blinks information when moving down and not returning in preset time, to be judged as closing one's eyes；Work as outside
The eyelid that terminal device is received blinks information to move down and being returned in preset time, is judged as blink.
7. it is according to claim 6 based on the learner's fatigue state detection method being wirelessly transferred, it is characterised in that：By institute
State eyelid blink information acquisition module and the wireless communication module composition wireless optical mouse device be installed on a glasses, institute
When stating eyelid and blinking information acquisition module and blink information to the eyelid of learner and be acquired, learner need to wear the glasses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017376.7A CN107015497A (en) | 2017-01-10 | 2017-01-10 | It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017376.7A CN107015497A (en) | 2017-01-10 | 2017-01-10 | It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method |
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| CN107015497A true CN107015497A (en) | 2017-08-04 |
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| CN201710017376.7A Pending CN107015497A (en) | 2017-01-10 | 2017-01-10 | It is a kind of based on the learner's fatigue state detecting system being wirelessly transferred and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111310560A (en) * | 2019-12-31 | 2020-06-19 | 华中师范大学 | Learning state monitoring system based on big data |
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Inventor after: Chen Meifen Inventor after: Bo Bo Inventor after: Zhou Yufen Inventor after: He Xiaoqing Inventor before: Zhang Guojin Inventor before: Huang Jinbiao Inventor before: Zhang Lingcong Inventor before: Zhou Lu Inventor before: Xu Ling |
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Effective date of registration: 20171115 Address after: No. 7098, Liu Xian Avenue, Nanshan District, Shenzhen, Guangdong Applicant after: SHENZHEN POLYTECHNIC Address before: Xiangcheng District of Fujian city in Zhangzhou Province, 363000 Front Street No. 36 Applicant before: Minnan Normal University |
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Application publication date: 20170804 |