CN204241937U - A kind of control system of automatic blackboard - Google Patents
A kind of control system of automatic blackboard Download PDFInfo
- Publication number
- CN204241937U CN204241937U CN201420429356.2U CN201420429356U CN204241937U CN 204241937 U CN204241937 U CN 204241937U CN 201420429356 U CN201420429356 U CN 201420429356U CN 204241937 U CN204241937 U CN 204241937U
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- CN
- China
- Prior art keywords
- module
- central processing
- control module
- control
- mouth
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model provides a kind of automatic blackboard control system, comprise reset control module, central processing module, wirless transmitting and receiving module, manual control module, motor control module M and motor control module N, described reset control module is connected with the reset signal input end of central processing module, described wirless transmitting and receiving module is connected with the P2 mouth of central processing module, described manual control module is connected with the P1 mouth of central processing module, and described P1 mouth, P2 mouth are all two-way I/O mouths.The utility model can control blackboard with wiping with stopping, controlling flexibly, closely hand push button controls, occur having a power failure or control system can manual wiping when breaking down, this automatic blackboard control system also add Wireless remote control device simultaneously, long-distance remote control can be realized control, allow teacher can control whenever and wherever possible in classroom blackboard eraser except and the action such as projection cloth folding and unfolding.
Description
Technical field
The utility model belongs to teaching aid technical field, is specifically related to a kind of control system of automatic blackboard.
Background technology
The respiratory tract that dust in air enters people can give rise to diseases.The blackboard that each school now uses is the traditional blackboard of artificial erasing mostly, and the classroom of teaching have impact on teen-age academic environment because high-frequency use blackboard produces a large amount of dust, also directly works the mischief to teachers ' health.Although country makes up the harm of this occupational illness to teacher by subsidy always, life is difficult to go to compensate with money, is sitting in front-seat student in addition, is subject to the threat of dust equally.
A kind of remote-controlled lifting blackboard disclosed in Chinese patent ZL200920012240.8, this remote-controlled lifting blackboard is for solving the partially short or higher teacher of head or student's inconvenience in use, by being provided with blackboard traction rope on the axle of frame roof, one end of axle is fixed on motor, motor is connected with control device, and the telepilot that user can use blackboard to be equipped with is to regulate the height of blackboard.The control mode of this blackboard movable up and down is too single, and control circuit is unstable, can not control multiple motor simultaneously, can not realize Non-follow control and remote pilot simultaneously, very inconvenient in operation.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of control system of automatic blackboard, can wireless remote control control system by adding, solve automatic blackboard can not control multiple motor simultaneously, the problem of Non-follow control and remote pilot can not be realized simultaneously.
The utility model is achieved by the following technical programs.
The control system of a kind of automatic blackboard that the utility model provides, comprise reset control module, central processing module, wirless transmitting and receiving module, manual control module, motor control module M and motor control module N, described reset control module is connected with the reset signal input end of central processing module, described wirless transmitting and receiving module is connected with the P2 mouth of central processing module, described manual control module is connected with the P1 mouth of central processing module, described P1 mouth, P2 mouth is all two-way I/O mouths, the two-way I/O mouth P2 mouth of described central processing module respectively with motor control module M, the signal input part of motor control module N connects.
The master chip of described central processing module is STC89C51.
The EA/VPP end of described STC89C51 chip is connected with power supply.
Motor M in described motor control module M, motor control module N, the both positive and negative polarity of motor N are respectively through different relay auxiliary contact ground connection, and the link of power supply is arranged within the scope of the actuating length of each relay auxiliary contact; One end of the relay corresponding with described relay auxiliary contact is connected with power supply, and the other end is connected with the collector of triode, the grounded emitter of described triode, and base stage is connected with the control signal output terminal of central processing module through a resistance.
The beneficial effects of the utility model are: automatic blackboard control system can control blackboard with wiping with stopping, controlling flexibly, closely hand push button controls, occur having a power failure or control system can manual wiping when breaking down, this automatic blackboard control system also add Wireless remote control device simultaneously, long-distance remote control can be realized control, allow teacher can control whenever and wherever possible in classroom blackboard eraser except and the action such as projection cloth folding and unfolding.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model control system;
Fig. 2 is the circuit diagram of the utility model control system;
Fig. 3 is the control circuit figure of motor M;
Fig. 4 is that motor M rotates forward driving circuit figure;
Fig. 5 is motor M reversing drive circuit figure;
Fig. 6 is the control circuit figure of motor N;
Fig. 7 is that motor N rotates forward driving circuit figure;
Fig. 8 is motor N reversing drive circuit figure.
Embodiment
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
As Fig. 1, the control system of a kind of automatic blackboard shown in Fig. 2, comprise reset control module, central processing module, wirless transmitting and receiving module, manual control module, motor control module M and motor control module N, described reset control module is connected with the reset signal input end of central processing module, described wirless transmitting and receiving module is connected with the P2 mouth of central processing module, described manual control module is connected with the P1 mouth of central processing module, described P1 mouth, P2 mouth is all two-way I/O mouths, the two-way I/O mouth P2 mouth of described central processing module respectively with motor control module M, the signal input part of motor control module N connects.Control system can control the rotation of up-down roller and the rotation of projection cloth cylinder, and the control between their up-down roller and projection cloths is separate.
The master chip of described central processing module is STC89C51.
The EA/VPP end of described STC89C51 chip is connected with power supply, and CPU performs the instruction in internal program memory.
Motor control module M as shown in Fig. 3 ~ Fig. 8, the circuit diagram of motor control module N, motor M in motor control module M, motor control module N, the both positive and negative polarity of motor N are respectively through different relay auxiliary contact ground connection, and the link of power supply is arranged within the scope of the actuating length of each relay auxiliary contact.One end of the relay corresponding with described relay auxiliary contact is connected with power supply, and the other end is connected with the collector of triode, the grounded emitter of described triode, and base stage is connected with the control signal output terminal of central processing module through a resistance.
Control system in the utility model switches on power after system initialization completes, and system is standby.When pressing blackboard forward (oppositely) rotary knob (or remote control forward (oppositely) rotary knob), after central processing unit receives corresponding instruction, the conducting of motor M control circuit, motor M rotates, and magnetic soft blackboard rotates forward; Further round brush will oppositely rotate with larger rotating speed because gear ratio is different, increases the contact area with plate face, realizes the effective cleaning to plate face.When after release button, motor stops action.
When pressing projection screen decline button (or remote control buttons), after processor receives corresponding instruction, projection screen controls the action of motor N, and projection screen declines, and when release button after arrival correct position, curtain stops action.Otherwise when pressing curtain raise button, curtain synchronously will realize the action of rising.
Governor circuit in the utility model adopts single-chip microcomputer as main control chip, for receiving the signal that wireless remote control is launched and the rotating controlling motor, whole mechanical action controls primarily of wireless remote control and pushbutton switch, wireless remote control major control blackboard auto-erasing and the upper and lower adjustable of screen move, and realize electromechanical integration.Teacher uses wireless remote control can carry out remote wipe in any corner in classroom to writing full blackboard surface, when being a teacher closer from blackboard, can also be operated accordingly by the pushbutton switch that blackboard sets to blackboard and screen.The subject matter considered is that whole mechanical part is when operating, need to provide a stable voltage and current to mechanical system, therefore have employed the Switching Power Supply of stable output and mu balanced circuit provides a constant voltage and electric current to master control system and motor, to arrive a kind of efficient, stable operating state in circuit design part.
The utility model is applicable to various teaching (be particularly suitable for machanical drawing and draw teaching); The blackboard on constituent parts office doorway, can be used for writing notice can leave a message; As the small blackboard of family, be used for practising drawing to child and writing, use clean, go wiping without child oneself.
Claims (4)
1. the control system of an automatic blackboard, it is characterized in that: comprise reset control module, central processing module, wirless transmitting and receiving module, manual control module, motor control module M and motor control module N, described reset control module is connected with the reset signal input end of central processing module, described wirless transmitting and receiving module is connected with the P2 mouth of central processing module, described manual control module is connected with the P1 mouth of central processing module, described P1 mouth, P2 mouth is all two-way I/O mouths, the two-way I/O mouth P2 mouth of described central processing module respectively with motor control module M, the signal input part of motor control module N connects.
2. the control system of automatic blackboard as claimed in claim 1, is characterized in that: the master chip of described central processing module is STC89C51.
3. the control system of automatic blackboard as claimed in claim 2, is characterized in that: the EA/VPP end of described STC89C51 chip is connected with power supply.
4. the control system of automatic blackboard as claimed in claim 1, it is characterized in that: the motor M in described motor control module M, motor control module N, the both positive and negative polarity of motor N are respectively through different relay auxiliary contact ground connection, and the link of power supply is arranged within the scope of the actuating length of each relay auxiliary contact; One end of the relay corresponding with described relay auxiliary contact is connected with power supply, and the other end is connected with the collector of triode, the grounded emitter of described triode, and base stage is connected with the control signal output terminal of central processing module through a resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429356.2U CN204241937U (en) | 2014-07-31 | 2014-07-31 | A kind of control system of automatic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429356.2U CN204241937U (en) | 2014-07-31 | 2014-07-31 | A kind of control system of automatic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241937U true CN204241937U (en) | 2015-04-01 |
Family
ID=52771406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429356.2U Expired - Fee Related CN204241937U (en) | 2014-07-31 | 2014-07-31 | A kind of control system of automatic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241937U (en) |
-
2014
- 2014-07-31 CN CN201420429356.2U patent/CN204241937U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150401 Termination date: 20170731 |