CN207541488U - Classroom electric appliance intelligent switch system - Google Patents
Classroom electric appliance intelligent switch system Download PDFInfo
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- CN207541488U CN207541488U CN201721418547.9U CN201721418547U CN207541488U CN 207541488 U CN207541488 U CN 207541488U CN 201721418547 U CN201721418547 U CN 201721418547U CN 207541488 U CN207541488 U CN 207541488U
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- Prior art keywords
- electric appliance
- controller
- indoor
- classroom
- intelligent switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides classroom electric appliance intelligent switch system, including timer, controller, sensor and indoor electric appliance；Timer is connected with controller, for controlling signal to controller sending time according to artificial preset time；Sensor is connected with controller, for obtaining indoor environment information, and indoor environment information is sent to controller；Controller is connected with indoor electric appliance, for judging whether to need to open indoor electric appliance, and send drive signal to indoor electric appliance in case of need according to time control signal and indoor environment information.The utility model can preset the electric switch time, according to the open position of the equipment such as indoor occupant environment precise positioning electric light, electric fan, and according to the job class of human activity amount set device, intelligentized control method religion indoor electric appliance, electric energy is saved, improves the comfort level attended class and reviewed one's lessons of student.
Description
Technical field
The utility model is related to intelligent switch technology field, more particularly, to classroom electric appliance intelligent switch system.
Background technology
At present, the place that university classroom is attended class or reviewed one's lessons as student, space setting on it is more much larger than middle and primary schools classroom,
Usually it is provided with the classrooms such as several electric lights, fan, air-conditioning and multimedia electrical equipment.
Under normal conditions, electrical equipment during class hours is in opening, when after class, teacher and classmates
It disperses in succession, the electrical equipment in classroom is then unmanned to close.Even if the classmate reviewed one's lessons is subsequently had using the classroom, but personnel are often
It is less, and the position for reviewing one's lessons the distribution of classmate seat is also very random, electric light, fan and air-conditioning are still in the shape being all turned at this time
State, even if some positions nobody sits, but electric fan, the electric light around the position are also being opened, and will if things go on like this expend a large amount of electricity
Can, vast resources will be wasted by taking care of the pence.Although there is cleaning worker to carry out manual control to classroom electric appliance while cleaning,
But the often too low also labor intensive of efficiency.Moreover, religion indoor electric appliance is opened and closed only by the method for manual control excessively
It is inflexible, electric energy is not only wasted, but also reduce the comfort level experience that classmates attend class and review one's lessons.
Utility model content
In view of this, the purpose of this utility model is to provide classroom electric appliance intelligent switch system, electric appliance can be preset and opened
The time is closed, according to the open position of the equipment such as indoor occupant environment precise positioning electric light, electric fan, and is determined according to human activity amount
The job class of equipment, intelligentized control method religion indoor electric appliance, saves electric energy, improves the comfort level attended class and reviewed one's lessons of student.
In a first aspect, the utility model embodiment provides classroom electric appliance intelligent switch system, including timer, control
Device, sensor and indoor electric appliance；
The timer is connected with the controller, for according to artificial preset time to the controller send when
Between control signal；
The sensor is connected with the controller, for obtaining indoor environment information, and the indoor environment is believed
Breath is sent to the controller；
The controller is connected with the indoor electric appliance, for according to the time control signal and the indoor ring
Border information judges whether to need to open the indoor electric appliance, and send driving letter to the indoor electric appliance in case of need
Number.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the sensor includes force-feeling sensor, photoelectric sensor and temperature sensor；
The force-feeling sensor is connected with the controller, is obtained for detecting occupancy and personnel's distributing position
Occupancy information and personnel's distributed intelligence, and the occupancy information and personnel's distributed intelligence is sent to described
Controller；
The photoelectric sensor is connected with the controller, and solar light information is obtained for daylight environment in collection room, and
The solar light information is sent to the controller；
The temperature sensor is connected with the controller, and temperature information is obtained for monitoring indoor temperature, and by institute
It states temperature information and is sent to the controller.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Two kinds of possible embodiments, wherein, the indoor electric appliance includes refrigeration equipment, and the controller is additionally operable to according to the interior
Number information, personnel's distributed intelligence and the temperature information send refrigeration drive signal so that described to the refrigeration equipment
Refrigeration equipment opens refrigeration according to indoor occupant quantity and distributing position.
Second of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Three kinds of possible embodiments, wherein, the indoor electric appliance further includes lighting apparatus, and the controller was additionally operable to according to the day
Optical information, personnel's distributed intelligence and the time control signal send illumination drive signal so that institute to the lighting apparatus
It states lighting apparatus and opens illumination according to indoor light light and shade.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein, the indoor electric appliance further includes multimedia equipment, and the controller is additionally operable to according to
Time control signal sends multimedia drive signal so that the multimedia equipment is when artificial default to the multimedia equipment
Between open.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, the controller is additionally operable to adjust the working level of refrigeration, heating equipment according to indoor human body activity.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, electricity consumption monitoring device is further included, the electricity consumption monitoring device includes acquisition module, detection module, relay and alarm module,
Wherein, the acquisition module includes mutual inductor and A/D converter；
The acquisition module is connected respectively with the indoor electric appliance and the detection module, for passing through the mutual inductance
Device collection voltages value and current value, and pass through the A/D converter and transformed voltage value is sent to the detection module；
The detection module is connected respectively with the relay and the alarm module, for judging the voltage value
With current value whether be more than predetermined threshold value, and make in the case of exceeding the relay circuit is automatically powered off and
The alarm module is made to send out alert song.
The 6th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Seven kinds of possible embodiments, wherein, alarm module includes several green indicating lamps, and the green indicating lamp is according to indoor security
Escape route is evenly arranged in classroom wall, and close to the position of ceiling.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, the integrated operator control panel for being set to classroom import and export is further included, the integrated operator control panel is connected with the controller, is used for
Receive key command information with by the unlatching of indoor electric appliance described in manual control.
The 8th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Nine kinds of possible embodiments, wherein, the integrated operator control panel include manual safety alarm, the manual safety alarm with
Position indicator wireless connection on Outdoor Fire Hydrant.
The utility model provides classroom electric appliance intelligent switch system, including timer, controller, sensor and indoor electric
Device；Timer is connected with controller, for controlling signal to controller sending time according to artificial preset time；Sensor,
It is connected with controller, for obtaining indoor environment information, and indoor environment information is sent to controller；Controller, with room
Interior electric appliance is connected, for judging whether to need to open indoor electric appliance according to time control signal and indoor environment information, and
In the case of needing drive signal is sent to indoor electric appliance.The utility model can preset the electric switch time, according to indoor people
The open position of the equipment such as member's environment precise positioning electric light, electric fan, and according to the job class of human activity amount set device, intelligence
Energyization control religion indoor electric appliance, saves electric energy, improves the comfort level attended class and reviewed one's lessons of student.
Other feature and advantage of the utility model will illustrate, also, in the following description partly from specification
In become apparent or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
For the above-mentioned purpose of the utility model, feature and advantage is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the classroom electric appliance intelligent switch system schematic that the utility model embodiment provides；
Fig. 2 is another classroom electric appliance intelligent switch system schematic that the utility model embodiment provides；
Fig. 3 is the manual safety alarm schematic diagram that the utility model embodiment provides.
Icon：
10- timers；20- controllers；30- sensors；31- force-feeling sensors；32- photoelectric sensors；33- temperature sensing
Device；40- indoor electric appliances；50- electricity consumption monitoring devices；51- acquisition modules；52- detection modules；53- relays；54- alarm modules；
60- integrates operator control panel；61- manual safety alarms；70- position indicators.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
At present, religion indoor electric appliance opens and closes only excessively inflexible by the method for manual control, not only wastes electric energy, but also reduce
The comfort level experience that classmates attend class and review one's lessons, based on this, the classroom electric appliance intelligent switch that the utility model embodiment provides
System can preset the electric switch time, according to the open position of the equipment such as indoor occupant environment precise positioning electric light, electric fan,
And the job class of equipment is determined according to human activity amount, intelligentized control method religion indoor electric appliance saves electric energy, improves the upper of student
Class and the comfort level reviewed one's lessons.
Fig. 1 is the classroom electric appliance intelligent switch system schematic that the utility model embodiment provides.
With reference to Fig. 1, classroom electric appliance intelligent switch system includes timer 10, controller 20, sensor 30 and indoor electric appliance
40；
Timer 10 is connected with controller 20, for being controlled according to artificial preset time to 20 sending time of controller
Signal；
Sensor 30 is connected with controller 20, for obtaining indoor environment information, and indoor environment information is sent to
Controller 20；
Controller 20 is connected with indoor electric appliance 40, for being according to time control signal and the judgement of indoor environment information
It is no to need to open indoor electric appliance 40, and send drive signal to indoor electric appliance 40 in case of need.
Specifically, teacher or student can set artificial preset time according to the period of going to school and leaving school, artificial default reaching
In the case of time, timer will control signal to controller sending time, and controller would automatically turn on electricity after receiving signal
Each electric appliances interior for the previous period at school can be opened, prepare, save to attend class by the indoor electric appliances such as lamp, multimedia equipment
The process that is opened manually.Sensor obtains indoor environment information in real time, including temperature, illumination, personnel's distribution and personnel position
The relevant informations such as put, controller carries out judging whether to need to open indoor electric appliance accordingly, it is achieved thereby that the intelligence of religion indoor electric appliance
It can control, can not only carry out switch control to electric appliance according to the preset time of timer, but also the room that sensor can be utilized to obtain
It is autonomous during interior environmental information is at school or student reviews one's lessons to open electrical equipment so that teaching the switch of indoor electric appliance becomes spirit
It is living, at the same also avoid contact due to people and caused by get an electric shock hidden danger.
Further, sensor 30 includes force-feeling sensor 31, photoelectric sensor 32 and temperature sensor 33；
Force-feeling sensor 31, are connected with controller, and indoor people is obtained for detecting occupancy and personnel's distributing position
Number information and personnel's distributed intelligence, and occupancy information and personnel's distributed intelligence are sent to controller；
Photoelectric sensor 32, is connected with controller, and solar light information is obtained for daylight environment in collection room, and by daylight
Information is sent to controller；
Temperature sensor 33, is connected with controller, and temperature information is obtained for monitoring indoor temperature, and by temperature information
It is sent to controller.
Specifically, force-feeling sensor is uniformly arranged on the ceiling and import and export in classroom, detects occupancy and personnel
Distributing position；Photoelectric sensor is arranged near blackboard periphery and each electric light, to ensure to carry out the position for needing light
Monitoring, as the sunlight in early morning to high noon is gradually strong, electric light can self-closing link province electric energy；Temperature sensor is arranged on classroom
Each electric fan and air-conditioning periphery, when the temperature for monitoring the position is excessively high, then open corresponding electric fan or sky in this position
It adjusts, the electric fan position that precise positioning should be opened, so as to which its switch be made to become intelligence.Simultaneously, it is ensured that in classroom free time nothing
In the case of people, various indoor electric appliances are automatically closed, and save electric energy.
Further, indoor electric appliance 40 includes refrigeration equipment, and controller 20 is additionally operable to according to occupancy information, Ren Yuanfen
Cloth information and temperature information send refrigeration drive signal so that refrigeration equipment is according to indoor occupant quantity and distribution to refrigeration equipment
Open refrigeration in position.
Specifically, refrigeration equipment includes but not limited to, such as electric fan and air-conditioning.Refrigeration equipment personnel distribution it is more intensive with
And the position unlatching work that activity is big, and the position that personnel are idle or activity is small is not turned on.
Further, indoor electric appliance 40 further includes lighting apparatus, and controller 20 is additionally operable to according to solar light information, personnel's distribution
Information and time control signal send illumination drive signal so that lighting apparatus is opened according to indoor light light and shade to lighting apparatus
Illumination.
Further, indoor electric appliance 40 further includes multimedia equipment, controller 20 be additionally operable to according to time control signal to
Multimedia equipment sends multimedia drive signal so that multimedia equipment is opened in artificial preset time.
Specifically, preceding multimedia equipment automatically turns at school, saves the time in classroom of teacher's unlatching.
Further, controller 20 is additionally operable to adjust the working level of refrigeration, heating equipment according to indoor human body activity,
When people carry out more violent activity indoors, then refrigerant level can be raised, improve the comfort level that student attends class.
Specifically, since electric fan and air-conditioning are divided into several working levels, can according to the activity information of indoor occupant or
Temperature information adjust automatically working level so that the experience that student attends class is more comfortable.
Further, as shown in Fig. 2, further including electricity consumption monitoring device 50, electricity consumption monitoring device 50 include acquisition module 51,
Detection module 52, relay 53 and alarm module 54, wherein, acquisition module 51 includes mutual inductor and A/D converter；
Acquisition module 51 is connected respectively with indoor electric appliance 40 and detection module 52, for passing through mutual inductor collection voltages
Value and current value, and pass through A/D converter and transformed voltage value is sent to detection module 52；
Detection module 52 is connected respectively with relay 53 and alarm module 54, for judging that voltage value and current value be
No is more than predetermined threshold value, and relay 53 is made to automatically power off circuit in the case of exceeding and makes alarm module 54
Send out alert song.
Further, alarm module 54 includes several green indicating lamps, and green indicating lamp is according to indoor security escape route
Classroom wall is evenly arranged in, and close to the position of ceiling.
Specifically, electricity consumption monitoring device can effectively monitor the indoor Electrical Safety situation of religion and fire conditions.Such as cigarette
Fog siren monitors fire incident, then the green indicating lamp flicker of alarm module lights, and indoor occupant is guided to be referred to according to safety
Show that the escape unharmed route of lamp flicker is evacuated, thing is trampled caused by personnel when effectively avoiding the contingency from occurring are flurried
Therefore and in the case of power failure of attending class in night, it can equally give safety instruction.
Further, the integrated operator control panel 60 for being set to classroom import and export is further included, integrates operator control panel 60 and controller
20 are connected, for receiving key command information with by the unlatching of manual control indoor electric appliance 40.
Specifically, indoor electric appliance can also be controlled using the integrated operator control panel being arranged on the wall of classroom doorway,
Such as in the case where emptying classroom immediately, in the monitoring needs of sensor certain reaction time, collection can be directly pressed at this time
Into the button of operator control panel, control operation is carried out to indoor electric appliance, avoids the fiber crops of each position closing electric light or fan indoors
It is tired.
Further, as shown in figure 3, integrated operator control panel 60 includes manual safety alarm 61, manual safety alarm 61
With 70 wireless connection of position indicator on Outdoor Fire Hydrant.
Specifically, in the case of fire, where people are often difficult to find Outdoor Fire Hydrant in flurried at the first time
Position, manual safety alarm 61 can not only prompt class management personnel to have contingency, while pacify manually in pressing
On full alarm 61 while button, the position indicator 70 of the setting on Outdoor Fire Hydrant or fire extinguisher can light, and pass through
Photoelectricity prompts the position of people's fire hydrant or fire extinguisher.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment can be referred to, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the utility model.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to aforementioned
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
It, still can be to the skill recorded in previous embodiment in the technical scope that the technical staff in art field discloses in the utility model
Art scheme, which is modified or can be readily occurred in, to be changed or carries out equivalent replacement to which part technical characteristic；And these modifications,
Variation is replaced, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of classroom electric appliance intelligent switch system, which is characterized in that including timer, controller, sensor and indoor electric appliance；
The timer is connected with the controller, for according to artificial preset time to the controller sending time control
Signal processed；
The sensor is connected with the controller, for obtaining indoor environment information, and the indoor environment information is sent out
Give the controller；
The controller is connected with the indoor electric appliance, for according to the time control signal and indoor environment letter
Breath judges whether to need to open the indoor electric appliance, and send drive signal to the indoor electric appliance in case of need.
2. electric appliance intelligent switch system in classroom according to claim 1, which is characterized in that the sensor includes people's propagated sensation
Sensor, photoelectric sensor and temperature sensor；
The force-feeling sensor is connected with the controller, and interior is obtained for detecting occupancy and personnel's distributing position
Number information and personnel's distributed intelligence, and the occupancy information and personnel's distributed intelligence are sent to the control
Device；
The photoelectric sensor is connected with the controller, and solar light information is obtained for daylight environment in collection room, and by institute
It states solar light information and is sent to the controller；
The temperature sensor is connected with the controller, and temperature information is obtained for monitoring indoor temperature, and by the temperature
Degree information is sent to the controller.
3. electric appliance intelligent switch system in classroom according to claim 2, which is characterized in that the indoor electric appliance includes refrigeration
Equipment, the controller are additionally operable to according to the occupancy information, personnel's distributed intelligence and the temperature information to institute
It states refrigeration equipment and sends refrigeration drive signal so that the refrigeration equipment opens refrigeration according to indoor occupant quantity and distributing position.
4. electric appliance intelligent switch system in classroom according to claim 3, which is characterized in that the indoor electric appliance further includes photograph
Bright equipment, the controller be additionally operable to according to the solar light information, personnel's distributed intelligence and the time control signal to
The lighting apparatus sends illumination drive signal so that the lighting apparatus opens illumination according to indoor light light and shade.
5. electric appliance intelligent switch system in classroom according to claim 4, which is characterized in that the indoor electric appliance further includes more
Media device, the controller are additionally operable to send multimedia driving letter to the multimedia equipment according to the time control signal
Number so that the multimedia equipment is opened in artificial preset time.
6. electric appliance intelligent switch system in classroom according to claim 1, which is characterized in that the controller is additionally operable to basis
Indoor human body activity adjusts the working level of refrigeration, heating equipment.
7. electric appliance intelligent switch system in classroom according to claim 1, which is characterized in that electricity consumption monitoring device is further included,
The electricity consumption monitoring device includes acquisition module, detection module, relay and alarm module, wherein, the acquisition module includes
Mutual inductor and A/D converter；
The acquisition module is connected respectively with the indoor electric appliance and the detection module, is adopted for passing through the mutual inductor
Collecting voltage value and current value, and pass through the A/D converter and transformed voltage value is sent to the detection module；
The detection module is connected respectively with the relay and the alarm module, for judging the voltage value and electricity
Whether flow valuve is more than predetermined threshold value, and the relay is made to automatically power off circuit in the case of exceeding, and is made described
Alarm module sends out alert song.
8. electric appliance intelligent switch system in classroom according to claim 7, which is characterized in that alarm module includes several safety
Indicator light, the green indicating lamp are evenly arranged on the wall of classroom according to indoor security escape route close to the position of ceiling
It puts.
9. electric appliance intelligent switch system in classroom according to claim 1, which is characterized in that further include and be set to classroom disengaging
Integrated operator control panel at mouthful, the integrated operator control panel is connected with the controller, for receiving key command information with artificial
Control the unlatching of the indoor electric appliance.
10. electric appliance intelligent switch system in classroom according to claim 9, which is characterized in that the integrated operator control panel includes
Manual safety alarm, the manual safety alarm and the position indicator wireless connection on Outdoor Fire Hydrant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721418547.9U CN207541488U (en) | 2017-10-30 | 2017-10-30 | Classroom electric appliance intelligent switch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721418547.9U CN207541488U (en) | 2017-10-30 | 2017-10-30 | Classroom electric appliance intelligent switch system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207541488U true CN207541488U (en) | 2018-06-26 |
Family
ID=62611699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721418547.9U Expired - Fee Related CN207541488U (en) | 2017-10-30 | 2017-10-30 | Classroom electric appliance intelligent switch system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207541488U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324582A (en) * | 2018-10-30 | 2019-02-12 | 广东机电职业技术学院 | Intelligent sound Classroom System |
| WO2020062403A1 (en) * | 2018-09-28 | 2020-04-02 | 安徽独角仙信息科技有限公司 | Control method for intelligently adjusting lamp illumination according to number of people |
| CN111857068A (en) * | 2020-07-02 | 2020-10-30 | 河源职业技术学院 | Smart classroom control method, system and communication protocol |
-
2017
- 2017-10-30 CN CN201721418547.9U patent/CN207541488U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062403A1 (en) * | 2018-09-28 | 2020-04-02 | 安徽独角仙信息科技有限公司 | Control method for intelligently adjusting lamp illumination according to number of people |
| CN109324582A (en) * | 2018-10-30 | 2019-02-12 | 广东机电职业技术学院 | Intelligent sound Classroom System |
| CN111857068A (en) * | 2020-07-02 | 2020-10-30 | 河源职业技术学院 | Smart classroom control method, system and communication protocol |
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Granted publication date: 20180626 Termination date: 20181030 |