CN106228774B - A kind of stupefied alarm set - Google Patents
A kind of stupefied alarm set Download PDFInfo
- Publication number
- CN106228774B CN106228774B CN201610816761.3A CN201610816761A CN106228774B CN 106228774 B CN106228774 B CN 106228774B CN 201610816761 A CN201610816761 A CN 201610816761A CN 106228774 B CN106228774 B CN 106228774B
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- controller
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- idle status
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- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 241001633942 Dais Species 0.000 claims abstract description 49
- 230000001815 facial effect Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims 1
- 230000000638 stimulation Effects 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000000697 sensory organ Anatomy 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Cash Registers Or Receiving Machines (AREA)
Abstract
The invention discloses a kind of stupefied alarm set, including controller, alert mechanism, the photographic device with face identification functions, communication device and dais control device；Photographic device is electrically connected with the controller, and controller is communicated to connect by communication device and dais control device；Controller receives the human face data that photographic device successively acquires and determines whether idle status；Dais control device receives the judging result of controller and alert mechanism action is controlled to remind the people of idle status.Above structure can be detected effectively by photographic device and detect facial image, then facial image is compared and is analyzed, the image of priority acquisition is compared by controller, and judge whether the object that photographic device is directed to is idle status, then the judgement result of the object of idle status is carried out being sent to dais control device, idle status when can prevent middle school student at school cannot conscientiously listen to the teacher, while can be acted by alert mechanism, remind and be detached from idle status.
Description
Technical field
The present invention relates to a kind of stupefied alarm sets, belong to students' supplies field.
Background technology
Middle school student cause energy for a long time in collected state since present learning pressure is larger, while also due to raw
Reason reason and other reasons enter idle status, influence Key Learns and, cause the mistakes and omissions of knowledge point, influence school grade,
In Learning in School, the learning state that teacher often can not well and timely monitor each student is monitored, and is made
School grade into student declines；Now lack a kind of good monitoring device in the market, it can not be to the study of each student
State is detected, simultaneously, it is impossible to it be helped to be rapidly separated idle status, ensure the learning efficiency of student, based on this market
The situation of blank is particularly developed one kind for student's learning efficiency, student is helped to be detached from idle status in time, auxiliary student learns
It practises.
Invention content
The goal of the invention of the present invention is：In view of the above problems, a kind of stupefied alarm set is provided, passes through camera shooting
Device detects and detects facial image, and then facial image is compared and analyzed, by controller to the figure of priority acquisition
As being compared, and judge whether the object that photographic device is directed to is idle status, then by the judgement of the object of idle status
As a result it carries out being sent to dais control device；Idle status when can prevent middle school student at school cannot conscientiously listen to the teacher, and indulge in
Accidentally learn, while can be acted by alert mechanism, the people of idle status is reminded to be detached from idle status.Pass through dais control device
Dual control is carried out, and the control of alert mechanism is carried out by dais control device, teacher can be convenient to and checked and compared, simultaneously
It gives and is detached from the selection that the classmate of idle status should not be reminded in time, it being capable of the effectively abuse of avoiding device and misuse.
The technical solution adopted by the present invention is as follows：
The invention discloses a kind of stupefied alarm set, including controller, alert mechanism, the camera shooting with face identification functions
Device, communication device and dais control device；Photographic device is electrically connected with the controller, and controller passes through communication device and dais
Control device communicates to connect；Controller receives the human face data that photographic device successively acquires and determines whether idle status；It says
Platform control device receives the judging result of controller and alert mechanism action is controlled to remind the people of idle status.
Above structure can be detected effectively by photographic device and detect facial image, then carry out facial image pair
Than and analysis, by controller to priority acquisition image compare, and judge whether the object that photographic device is directed to is hair
Slow-witted state, then the judgement result of the object of idle status is carried out being sent to dais control device, can prevent middle school student from existing
Idle status when attending class cannot conscientiously listen to the teacher, and delay study, while can be acted by alert mechanism, remind idle status
People be detached from idle status.
Further, which includes humidifier, light source mechanism, vibrating mechanism or Blast mechanism.Above-mentioned prompting
Mechanism is only that a part has stimulatory function, so as to ensure that human body is detached from the device of idle status, can also pass through other dresses
Put the function of realizing and remind.
Further, which is mounted on the front side edge edge of desk, and humidifier includes injector head, playpipe, spray
Penetrate pump, woven hose and receiver；Jet pump is arranged on the oral area of receiver, and reservoir pot bottom, the other end are stretched into woven hose one end
It is connected to the input port of jet pump；Injector head is connected to the delivery outlet of jet pump by playpipe, which controls with dais
Device is electrically connected.Humidifier directly acts on human skin or face and is stimulated, and can effectively ensure that idle status
Disengaging, in addition, the design of the structure is simple, may be reused, effect of stimulation is good, the effective intensity for ensureing stimulation,
It prevents from impacting human body.
Further, light source mechanism includes lamp holder, lampshade, light bulb and condenser；Lampshade is fixed on lamp holder, and lampshade is in
Infundibulate, light bulb are arranged on the middle part of lampshade, reflective layer are provided on the madial wall of lampshade, and optically focused is fixed in the forepart of lampshade
Mirror, the condenser are convex lens；The middle part both ends of the convex lens are polished smooth；The light bulb is connected with dais control device.It should
The light source mechanism of structure is capable of providing the illumination that intensity is 400-880LX, meanwhile, by the control to light source mechanism, realize and dodge
The function of light stimulates eyes, achievees the purpose that be detached from idle status, meanwhile, use cost is low, easy for installation.
Further, for vibrating mechanism for installing on the seat, which includes vibrating motor, eccentric wheel, installation
Frame and motor shroud, the eccentric wheel are mounted in the shaft of vibrating motor, and vibrating motor is mounted on the chair of seat by mounting bracket
On leg, which is set in the outside of eccentric wheel；The eccentricity of the eccentric wheel is 1-2cm, and the quality of the eccentric wheel is
0.2-0.4kg；Vibrating motor is connected with dais control device.The vibrating mechanism directly vibrates human body, can be effective
Guarantee directly acts on the sense organ of human body, and the sequelae of vibration is minimum while simple in structure, furthermore it is possible to effectively realize dress
The quick control put.
Further, Blast mechanism includes blower motor, blade, leaf cover and motor rack；Blower motor is rack-mounted by motor
Desk front side edge edge is set to, blade is installed in the shaft of blower motor blade, which is located on blade；In the upper of blade
Side is provided with dropper, and the exit of the dropper is provided with solenoid valve.The Blast mechanism of the structure can work blast,
It is directly acted on by wind-force, effect of stimulation is apparent, simple in structure, and noise is small, to the marketing smaller of classmate around.
Further, mixed liquor is installed in the receiver, can effectively ensure that the injury for avoiding equipment to the person, carry
The safety that high device uses can effectively reduce the use difficulty and use cost of device.
Further, the method for prompting is：
Step 1：Photographic device acquires human face image information with setting time interval and is sent to controller, and controller receives
The image of 3 adjacent time inters acquisitions of facial image and selection carries out overlapping comparison；
Step 2：When Duplication is higher than setting value, controller judgement face is idle status, no person, is judged as non-stupefied
State；
Step 3：After controller judgement idle status, controller sends judgement as a result, dais controls to dais control device
Device receives judgement as a result, and selecting to judge or control alert mechanism action again；
Step 4：When dais, control device is within a specified time non-selected, then default choice judges again, and carries out primary
Label；When the label number of same face object reaches twice, then default choice controls prompting machine to dais control device next time
Structure acts；
Step 5：It is stored with multiple non-idle status template images in the controller；Before controller judgement idle status,
Freshly harvested facial image is first subjected to overlapping comparison with template image, if its Duplication is higher than 90%, it is freshly harvested to delete this
Facial image simultaneously resurveys facial image.
The above method, judgement idle status that can be relatively reliable reduce the probability of erroneous judgement, meanwhile, this method can lead to
It crosses dais control device and carries out dual control, and the control of alert mechanism is carried out by dais control device, teacher's progress can be convenient to
It checks and compares, while give the selection that should not be reminded of classmate for being detached from idle status in time, it being capable of effective avoiding device
Abuse and misuse.
Further, which is Blast mechanism, is provided with wind gathering cover at the air outlet of Blast mechanism, the wind gathering
It covers for infundibulate；Dais control device startup Blast mechanism makes the wind speed in the exit of wind gathering cover be 50-70m/s, wind pressure 80-
100pa.The Blast mechanism of the device can good wind gathering, can avoid Blast mechanism wind-force disperse and caused by the energy wave
Take, meanwhile, which can avoid impacting classmate around directly against stupefied individual.
Further, the image compared is overlapped in step 1 by pretreatment, photographic device is is adopted by the method for the pretreatment
The image of collection is analyzed and intercepts out the image at face position, then truncated picture is adjusted to the resolution ratio of setting.It should
The method of pretreatment can effectively avoid the erroneous judgement of idle status, can effectively ensure that the accuracy of judgement, can improve
The use difficulty of device, in addition, after the image procossing, controller it is lower to proportion, improve the time of judgement, improve stupefied shape
The treatment effeciency of state.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. being detected by photographic device and detecting facial image, then facial image is compared and analyzed, pass through control
Device processed compares, and judge whether the object that photographic device is directed to is idle status the image of priority acquisition, then will hair
The judgement result of the object of slow-witted state carries out being sent to dais control device；
2. idle status when can prevent middle school student at school cannot conscientiously listen to the teacher, delay study, while can lead to
Alert mechanism action is crossed, the people of idle status is reminded to be detached from idle status.
3. carrying out dual control by dais control device, and the control of alert mechanism, Neng Goufang are carried out by dais control device
It is checked and is compared convenient for teacher, while given and be detached from the selection that the classmate of idle status should not be reminded in time, it can be effective
Avoiding device abuse and misuse.
Description of the drawings
Fig. 1 is alarm set structure chart of staring blankly in the present invention；
Fig. 2 is alarm set electrical connection graph of staring blankly in the present invention；
It is marked in figure：1- controllers, 2- alert mechanisms, 3- photographic devices, 4- communication devices, 5- dais control device.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1：
As shown in Figure 1, 2, a kind of stupefied alarm set of the invention, including controller 1, alert mechanism 2, band recognition of face
Photographic device 3, communication device 4 and the dais control device 5 of function；Photographic device 3 is electrically connected with controller 1, and controller 1 is logical
Communication device 4 is crossed to communicate to connect with dais control device 5；Controller 1 receives the human face data that photographic device 3 successively acquires and sentences
Whether disconnected is idle status；Dais control device 5 receives the judging result of controller 1 and alert mechanism 2 is controlled to act to remind
The people of idle status.
The alert mechanism 2 includes humidifier, light source mechanism, vibrating mechanism or Blast mechanism.Above-mentioned alert mechanism 2 is only
Only it is that a part has stimulatory function, so as to ensure that human body is detached from the device of idle status, can also be realized by other devices
The function of prompting.
The humidifier is mounted on the front side edge edge of desk, and humidifier includes injector head, playpipe, jet pump, infusion
Pipe and receiver；Jet pump is arranged on the oral area of receiver, and reservoir pot bottom is stretched into woven hose one end, the other end is connected to spray
Penetrate the input port of pump；Injector head is connected to the delivery outlet of jet pump by playpipe, which is electrically connected with dais control device 5
It connects.Humidifier directly acts on human skin or face and is stimulated, and can ensure the disengaging of idle status, in addition, should
The design of structure is simple, may be reused, and effect of stimulation is good, ensures the intensity of stimulation, prevents from impacting human body.
Light source mechanism includes lamp holder, lampshade, light bulb and condenser；Lampshade is fixed on lamp holder, and lampshade is in infundibulate, lamp
Bubble is arranged on the middle part of lampshade, and reflective layer is provided on the madial wall of lampshade, and condenser, the condenser are fixed in the forepart of lampshade
For convex lens；The middle part both ends of the convex lens are polished smooth；The light bulb is connected with dais control device 5.The light source of the structure
Mechanism is capable of providing the illumination that intensity is 400-880LX, meanwhile, it by the control to light source mechanism, realizes the function of flash of light, pierces
Swash eyes, achieve the purpose that be detached from idle status, meanwhile, use cost is low, easy for installation.
For vibrating mechanism for installing on the seat, which includes vibrating motor, eccentric wheel, mounting bracket and motor
Shield, the eccentric wheel are mounted in the shaft of vibrating motor, and vibrating motor is mounted on by mounting bracket in the chair leg of seat, the electricity
Machine shield is set in the outside of eccentric wheel；The eccentricity of the eccentric wheel is 1-2cm, and the quality of the eccentric wheel is 0.2-0.4kg；It shakes
Dynamic motor is connected with dais control device 5.The vibrating mechanism directly vibrates human body, can ensure to directly act on human body
Sense organ, the sequelae of vibration is minimum, while simple in structure, furthermore it is possible to effectively realize the quick control of device.
Blast mechanism includes blower motor, blade, leaf cover and motor rack；Blower motor is attached to desk by motor rack
Front side edge edge, blade are installed in the shaft of blower motor blade, which is located on blade；It is provided with above blade
Dropper, the exit of the dropper are provided with solenoid valve.The Blast mechanism of the structure can work blast, directly pass through
Wind-force acts on, and effect of stimulation is apparent, simple in structure, and noise is small, to the marketing smaller of classmate around.
Mixed liquor is installed in the receiver, can ensure the injury for avoiding equipment to the person, improves the peace that device uses
Quan Xing can reduce the use difficulty and use cost of device.
Above structure can be detected by photographic device 3 and detect facial image, then by facial image carry out comparison and
Analysis compares, and judge whether the object that photographic device 3 is directed to is stupefied the image of priority acquisition by controller 1
Then the judgement result of the object of idle status is carried out being sent to dais control device 5 by state, can prevent middle school student upper
The idle status that class hour waits cannot conscientiously listen to the teacher, and delay study, while can be acted by alert mechanism 2, remind idle status
People be detached from idle status.
Embodiment 2：
Stupefied alarm set based on embodiment 1, the method reminded are：
Step 1：Photographic device 3 acquires human face image information with setting time interval and is sent to controller 1, and controller connects
The image received facial image and choose 3 adjacent time inter acquisitions carries out overlapping comparison；
Step 2：When Duplication is higher than setting value, controller 1 judges that face is idle status, and no person is judged as non-hair
Slow-witted state；
Step 3：After controller 1 judges idle status, controller 1 sends judgement as a result, dais is controlled to dais control device 5
Device 5 processed receives judgement as a result, and selecting to judge again or alert mechanism 2 being controlled to act；
Step 4：When dais control device 5 is within a specified time non-selected, then default choice judges again, and carries out primary
Label；When the label number of same face object reaches twice, then default choice controls prompting machine to dais control device 5 next time
Structure 2 acts；
Step 5：Multiple non-idle status template images are stored in controller 1；Controller 1 judge idle status it
Before, freshly harvested facial image is first subjected to overlapping comparison with template image, if its Duplication is higher than 90%, this is deleted and newly adopts
The facial image of collection simultaneously resurveys facial image.
The alert mechanism 2 is Blast mechanism, and wind gathering cover is provided at the air outlet of Blast mechanism, which is funnel
Shape；The startup Blast mechanism of dais control device 5 makes the wind speed in the exit of wind gathering cover be 50-70m/s, wind pressure 80-100pa.
The Blast mechanism of the device can good wind gathering, can avoid Blast mechanism wind-force disperse and caused by energy waste, together
When, which can avoid impacting classmate around directly against stupefied individual.
The image compared is overlapped in step 1 by pretreatment, the method for the pretreatment is the image for acquiring photographic device 3
The image at face position is analyzed and intercepted out, then truncated picture is adjusted to the resolution ratio of setting.The pretreatment
Method can avoid the erroneous judgement of idle status, can ensure the accuracy of judgement, can improve the use difficulty of device, in addition,
After the image procossing, controller 1 it is lower to proportion, improve the time of judgement, improve the treatment effeciency of idle status.
The above method, judgement idle status that can be relatively reliable reduce the probability of erroneous judgement, meanwhile, this method can lead to
Cross dais control device 5 and carry out dual control, and carry out by dais control device 5 control of alert mechanism 2, can be convenient to teacher into
Row is checked and is compared, while is given and be detached from the selection that the classmate of idle status should not be reminded in time, is capable of the abuse of avoiding device
And misuse.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of stupefied alarm set, which is characterized in that including controller（1）, alert mechanism（2）, with face identification functions
Photographic device（3）, communication device（4）And dais control device（5）；Photographic device（3）With controller（1）Electrical connection, controller
（1）Pass through communication device（4）With dais control device（5）Communication connection；Controller（1）Receive photographic device（3）Successively acquire
Human face data and determine whether idle status；Dais control device（5）Receive controller（1）Judging result and control carry
Wake up mechanism（2）Act the people to remind idle status；
The method of the prompting of stupefied alarm set is：
Step 1：Photographic device（3）Human face image information is acquired with setting time interval and is sent to controller（1）, controller connects
The image received facial image and choose 3 adjacent time inter acquisitions carries out overlapping comparison；
Step 2：When Duplication is higher than setting value, controller（1）Judge that face is idle status, no person is judged as non-stupefied
State；
Step 3：Controller（1）After judging idle status, controller（1）To dais control device（5）Judgement is sent as a result, dais
Control device（5）Judgement is received as a result, and selecting to judge again or controlling alert mechanism（2）Action；
Step 4：When dais control device（5）Within a specified time non-selected, then default choice judges again, and is once marked
Note；When the label number of same face object reaches twice, then dais control device（5）The prompting machine of default choice control next time
Structure（2）Action；
Step 5：In controller（1）In be stored with multiple non-idle status template images；Controller（1）Judge idle status it
Before, freshly harvested facial image is first subjected to overlapping comparison with template image, if its Duplication is higher than 90%, this is deleted and newly adopts
The facial image of collection simultaneously resurveys facial image.
2. stupefied alarm set according to claim 1, which is characterized in that the alert mechanism（2）Including humidifier, light
Source mechanism, vibrating mechanism or Blast mechanism.
3. stupefied alarm set according to claim 2, which is characterized in that the humidifier is mounted on the front side edge of desk
Edge, humidifier include injector head, playpipe, jet pump, woven hose and receiver；Jet pump is arranged on the oral area of receiver,
Reservoir pot bottom is stretched into woven hose one end, the other end is connected to the input port of jet pump；Injector head is connected to spray by playpipe
The delivery outlet of pump is penetrated, the jet pump and dais control device（5）Electrical connection.
4. stupefied alarm set according to claim 2, which is characterized in that light source mechanism include lamp holder, lampshade, light bulb,
And condenser；Lampshade is fixed on lamp holder, and lampshade is in infundibulate, and light bulb is arranged on the middle part of lampshade, is set on the madial wall of lampshade
Reflective layer is equipped with, condenser is fixed in the forepart of lampshade, which is convex lens；The middle part both ends of the convex lens are polished flat
It is whole；The light bulb and dais control device（5）It is connected.
5. stupefied alarm set according to claim 2, which is characterized in that vibrating mechanism, should for installing on the seat
Vibrating mechanism includes vibrating motor, eccentric wheel, mounting bracket and motor shroud, which is mounted in the shaft of vibrating motor,
Vibrating motor is mounted on by mounting bracket in the chair leg of seat, which is set in the outside of eccentric wheel；The eccentric wheel
Eccentricity is 1-2cm, and the quality of the eccentric wheel is 0.2-0.4kg；Vibrating motor and dais control device（5）It is connected.
6. stupefied alarm set according to claim 2, which is characterized in that Blast mechanism includes blower motor, blade, leaf
Cover and motor rack；Blower motor is attached to desk front side edge edge by motor rack, and blade is installed in the shaft of blower motor blade
On, which is located on blade；Dropper is provided with above blade, the exit of the dropper is provided with electromagnetism
Valve.
7. stupefied alarm set according to claim 1, which is characterized in that the alert mechanism（2）For Blast mechanism,
Wind gathering cover is provided at the air outlet of Blast mechanism, which is infundibulate；Dais control device（5）Starting Blast mechanism makes
The wind speed in the exit of wind gathering cover is 50-70m/s, wind pressure 80-100pa.
8. stupefied alarm set according to claim 7, which is characterized in that the image compared is overlapped in step 1 by pre-
Processing, the method for the pretreatment is by photographic device（3）The image of acquisition is analyzed and intercepts out the image at face position, so
Truncated picture is adjusted to the resolution ratio of setting afterwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610816761.3A CN106228774B (en) | 2016-09-12 | 2016-09-12 | A kind of stupefied alarm set |
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|---|---|---|---|
| CN201610816761.3A CN106228774B (en) | 2016-09-12 | 2016-09-12 | A kind of stupefied alarm set |
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| CN106228774A CN106228774A (en) | 2016-12-14 |
| CN106228774B true CN106228774B (en) | 2018-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107122789B (en) * | 2017-03-14 | 2021-10-26 | 华南理工大学 | Learning concentration degree analysis method based on multi-mode information fusion of depth camera |
| CN109492600B (en) * | 2017-10-26 | 2021-11-26 | 徐州煌烁科技发展有限公司 | Identification equipment |
| CN110956873A (en) * | 2018-07-25 | 2020-04-03 | 王小兰 | Student attention prompting system and attention prompting method |
| CN108831250A (en) * | 2018-07-25 | 2018-11-16 | 王小兰 | A kind of attention system for prompting and attention based reminding method for classroom teaching |
| CN111208900B (en) * | 2019-12-23 | 2024-03-22 | 上海褒润建筑科技有限公司 | Intelligent desk, system and data processing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4291301A (en) * | 1980-01-28 | 1981-09-22 | Chan Han Saw | Reminder alarm system for preventing mislaying of personal articles |
| EP2893321B1 (en) * | 2012-09-03 | 2021-02-24 | RS Dynamics GmbH | Compact size explosives detector and method for detecting explosives |
| CN104732737A (en) * | 2013-12-20 | 2015-06-24 | 西安瑞驰信息技术有限公司 | Doze-prevention electronic device |
| CN204332025U (en) * | 2014-05-09 | 2015-05-13 | 郑州信息科技职业学院 | A kind of pupil's wear-type learning state monitoring alarm set |
| CN204066202U (en) * | 2014-07-09 | 2014-12-31 | 河南中维电子科技有限公司 | A kind of intelligent camera with Self-certified |
| CN105763850A (en) * | 2016-03-30 | 2016-07-13 | 冯华飞 | Monitor based on face identification |
| CN206179184U (en) * | 2016-09-12 | 2017-05-17 | 成都创慧科达科技有限公司 | Stupefied reminding device |
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