CN207663583U - A kind of computer multimedia teaching auxiliary system - Google Patents
A kind of computer multimedia teaching auxiliary system Download PDFInfo
- Publication number
- CN207663583U CN207663583U CN201721284672.5U CN201721284672U CN207663583U CN 207663583 U CN207663583 U CN 207663583U CN 201721284672 U CN201721284672 U CN 201721284672U CN 207663583 U CN207663583 U CN 207663583U
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- China
- Prior art keywords
- controller
- pin
- fan
- projecting apparatus
- connects
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Abstract
The utility model provides a kind of computer multimedia teaching auxiliary system, including projecting apparatus, it is characterized in that：It is provided with temperature sensor on the projecting apparatus, the temperature sensor connects control device, the control device includes controller, the controller is separately connected electric-motor drive unit, display screen, clock module, reset circuit and buzzer circuit, the electric-motor drive unit connects fan driving motor, the fan driving motor connects fan, the both sides of the projecting apparatus are connected with supporting rod, it is provided with sliding block on the supporting rod, the fan is set on the sliding block, projecting apparatus described in the fan face.The utility model can be timely conveniently projector radiating, and increase the brightness in multi-media classroom.
Description
Technical field
The utility model is related to multimedia teaching fields, in particular, being related to a kind of computer multimedia teaching auxiliary system
System.
Background technology
Existing multimedia teaching apparatus is all that computer, video camera, projecting apparatus and curtain, projecting apparatus is used to make for a long time
With many heats that can radiate so that machine self-temperature is very high, and the service life of audio and video products, there is presently no specifically for throwing
The intelligent heat dissipation equipment of shadow instrument.In addition, when multimedia teaching, for the viewing effect of student, the light source in classroom is often closed
And curtain is closed, the light that this allows for classroom is excessively gloomy, is unfavorable for student and carries out other activities.This for the prior art not
Foot place.
Invention content：
It is convenient timely the technical problem to be solved by the present invention is to provide a kind of computer multimedia teaching auxiliary system
It is projector radiating, and illuminating ray appropriate is provided for multi-media classroom.
The utility model adopts the following technical solution realizes goal of the invention：
A kind of computer multimedia teaching auxiliary system, including projecting apparatus, it is characterized in that：It is provided with temperature on the projecting apparatus
Sensor is spent, the temperature sensor connects control device, and the control device includes controller, and the controller is separately connected
Electric-motor drive unit, display screen, clock module, reset circuit and buzzer circuit, the electric-motor drive unit connection fan drive
Dynamic motor, the fan driving motor connect fan, and the both sides of the projecting apparatus are connected with supporting rod, are arranged on the supporting rod
There is sliding block, the fan is set on the sliding block, projecting apparatus described in the fan face.
It is further limited as to the technical program, the controller is passed using microcontroller STC89C52, the temperature
Sensor uses DS18B20, the display screen to use LCD1602, and the electric-motor drive unit uses driving chip L298, when described
Clock module uses clock chip DS1302.
It is further limited as to the technical program, the pin 1-3 and pin 32-39 of the controller connect described show
The pin 4 of display screen, the controller connects the buzzer circuit, and the pin 9 of the controller connects the reset circuit,
The pin 23 of the controller connects the temperature sensor, and the pin 25-28 connections motor driving of the controller is single
Member, the pin 10 and pin 11 of the controller connect RS232 interfaces, the pin 15-17 connections clock of the controller
Module, the pin 21 of the controller connect photosensitive sensor, and the pin 14 of the controller connects relay module, it is described after
Electrical appliance module connection bulb.
Compared with prior art, the advantages of the utility model and good effect is：The temperature sensor of the utility model is used
In the temperature of detection projecting apparatus, and the information of acquisition is passed into controller, controller judges the information of reception, when super
When crossing set temperature, controller control electric-motor drive unit start fan driving motor, fan to projector cool down, meanwhile, bee
Ring device circuit can also send out buzzing alarming.Photosensitive sensor teaches indoor brightness for detecting, when brightness information is less than
When the brightness of setting, controller controls relay module and starts light bulb, increases the brightness in multi-media classroom.Display screen can
To show the working time of current time or projecting apparatus.The utility model can be timely conveniently projector radiating, and increase
Add the brightness in Media Classroom.
Description of the drawings
Fig. 1 is the principles of the present invention block diagram.
Fig. 2 is the circuit diagram of the utility model controller.
Fig. 3 is the circuit diagram of the buzzer circuit of the utility model.
Fig. 4 is the circuit diagram of the reset circuit of the utility model.
Fig. 5 is the circuit diagram of the temperature sensor of the utility model.
Fig. 6 is the circuit diagram of the relay module of the utility model.
Fig. 7 is the structural schematic diagram of the projecting apparatus of the utility model.
Fig. 8 is the side view of the projecting apparatus of the utility model.
Specific implementation mode:
With reference to embodiment, the utility model is further illustrated.
Referring to Fig. 1-Fig. 8, the utility model includes projecting apparatus 1, and temperature sensor 2 is provided on the projecting apparatus 1, described
Temperature sensor 2 connects control device 3, and the control device includes controller, and it is single that the controller is separately connected motor driving
Member, display screen, clock module, reset circuit and buzzer circuit, the electric-motor drive unit connects fan driving motor, described
Fan driving motor connects fan 4, and the both sides of the projecting apparatus 1 are connected with supporting rod 5, sliding block is provided on the supporting rod 5
6, the fan of the wind 4 is set on the sliding block 6, projecting apparatus 1 described in 4 face of the fan.Sliding block 6 can be slided along supporting rod 5, just
In the stand of adjustment fan 4.
The controller uses microcontroller STC89C52, the temperature sensor that DS18B20, the display screen is used to use
LCD1602, the electric-motor drive unit use driving chip L298, the clock module to use clock chip DS1302.
The pin 1-3 and pin 32-39 of the controller connect the display screen, and the pin 4 of the controller connects institute
Buzzer circuit is stated, the pin 9 of the controller connects the reset circuit, and the pin 23 of the controller connects the temperature
Sensor, the pin 25-28 connections electric-motor drive unit of the controller, the pin 10 and pin 11 of the controller connect
Connect RS232 interface, RS232 interface model MAX232ACPE, the pin 15-17 connections clock module of the controller,
The pin 21 of the controller connects photosensitive sensor, the model HL304HP of photosensitive sensor, the pin of the controller
14 connection relay module, the relay module connection bulb.
The workflow of the utility model is：Before multimedia teaching starts, curtain of classroom and headlamp, light sensor are closed
Indoor brightness is taught in device detection, if brightness is less than setting value, controller controls relay module and starts light bulb, increases more
Brightness in Media Classroom.During the work time, temperature sensor constantly detects projecting apparatus for computer, projecting apparatus and video camera
Temperature, and the temperature of detection is passed into controller, when the temperature of projecting apparatus is more than set temperature, controller passes through motor
Driving unit start fan driving motor, fan to projector cool down, meanwhile, buzzer circuit can also send out buzzing alarming.
Display screen can show the working time of current time or projecting apparatus.
Claims (3)
1. a kind of computer multimedia teaching auxiliary system, including projecting apparatus, it is characterized in that：It is provided with temperature on the projecting apparatus
Sensor, the temperature sensor connect control device, and the control device includes controller, and the controller is separately connected electricity
Machine driving unit, display screen, clock module, reset circuit and buzzer circuit, the electric-motor drive unit connection fan driving
Motor, the fan driving motor connect fan, and the both sides of the projecting apparatus are connected with supporting rod, are provided on the supporting rod
Sliding block, is arranged the fan on the sliding block, projecting apparatus described in the fan face.
2. computer multimedia teaching auxiliary system according to claim 1, it is characterized in that：The controller uses monolithic
Machine STC89C52, the temperature sensor use DS18B20, the display screen that LCD1602, the electric-motor drive unit is used to adopt
With driving chip L298, the clock module uses clock chip DS1302.
3. computer multimedia teaching auxiliary system according to claim 2, it is characterized in that：The pin 1- of the controller
3 connect the display screen with pin 32-39, and the pin 4 of the controller connects the buzzer circuit, and the controller draws
Foot 9 connects the reset circuit, and the pin 23 of the controller connects the temperature sensor, the pin 25- of the controller
The 28 connection electric-motor drive units, the pin 10 and pin 11 of the controller connect RS232 interface, and the controller draws
The pin 21 of the foot 15-17 connections clock module, the controller connects photosensitive sensor, and the pin 14 of the controller connects
Contact relay module, the relay module connection bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721284672.5U CN207663583U (en) | 2017-10-03 | 2017-10-03 | A kind of computer multimedia teaching auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721284672.5U CN207663583U (en) | 2017-10-03 | 2017-10-03 | A kind of computer multimedia teaching auxiliary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207663583U true CN207663583U (en) | 2018-07-27 |
Family
ID=62936144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721284672.5U Expired - Fee Related CN207663583U (en) | 2017-10-03 | 2017-10-03 | A kind of computer multimedia teaching auxiliary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207663583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208345A1 (en) * | 2020-04-17 | 2021-10-21 | 苏州桐力光电股份有限公司 | Smart classroom |
-
2017
- 2017-10-03 CN CN201721284672.5U patent/CN207663583U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208345A1 (en) * | 2020-04-17 | 2021-10-21 | 苏州桐力光电股份有限公司 | Smart classroom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20191003 |