CN101231531A - LCD lifter and electromotion up-down intelligent integration control system for projector - Google Patents
LCD lifter and electromotion up-down intelligent integration control system for projector Download PDFInfo
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- CN101231531A CN101231531A CNA2007100265089A CN200710026508A CN101231531A CN 101231531 A CN101231531 A CN 101231531A CN A2007100265089 A CNA2007100265089 A CN A2007100265089A CN 200710026508 A CN200710026508 A CN 200710026508A CN 101231531 A CN101231531 A CN 101231531A
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Abstract
The invention provides an intelligent integrated control system for the electrical elevation of liquid crystal lifters and projectors, which comprises a master control board subsystem, 232 communication control interfaces and an external control subsystem. The master control board subsystem consists of a power supply module, a SCM information processing module, a relay group and a remote control module. The external control subsystem can control the master control board in the modes of touch screen control, manual central control and remote control. One end of the master control board subsystem is connected with a power input terminal, and the other end thereof is connected with the external control subsystem. The master control board subsystem is connected with an upper travel switch, a lower travel switch, an optical coupling controller, a turn angle motor and an elevation master motor respectively. The master control board subsystem has a 232 communication control interface, which is the communication control interface capable of or free of information feedback and connected with the 232 communication interface of a computer. The invention has the advantages of good stability, intelligence and strong compatibility, easy operation and high control efficiency.
Description
Technical field
The present invention relates to a kind of control system of multimedia audiovisual equipment, relate in particular to the electromotion up-down intelligent integration control system of a kind of LCD lifter and projector.
Background technology
Because the starting of Chinese multimedia videoconference (teaching) system is than later, the control of lifting at present intelligence is low, by the key control loose contact, no communication serial port RS232 control and machine run information feedback are slow, can not be compatible mutually with international multimedia videoconference (teaching) system integration.According to Chinese insider's statistics, multimedia videoconference (teaching) system more than 80% is arranged at present, existence can not reset and control by key control loose contact, button falls a difficult problem frequently easily, thereby caused system's control efficiency low, even remote control is invalid, effectively the lifting of control system equipment.
Summary of the invention
At the control mentally disabled of above multimedia audiovisual apparatus control system, poor compatibility, by key control loose contact and the invalid defective of remote control, the present invention proposes a kind of multiple Based Intelligent Control that has, comprise that communication serial port RS232 control, state of runtime machine information are instead burst, touch-screen is controlled, the multiple remote control of dividing into groups, the LCD lifter and the electromotion up-down intelligent integration control system for projector of manually middle control control.
Purpose of the present invention is achieved by the following technical programs:
A kind of LCD lifter and electromotion up-down intelligent integration control system for projector, this system has a master control borad system, 232 communication control interfaces and external control system, the master control borad system has power module, the single-chip machine information processing module, the relay group, remote control module, external control system is used for the single-chip machine information processing module and the remote control module of master control borad are controlled, one termination power input end of master control borad system, the other end is connected with external control system, upper stroke switch, lower stroke switch, the control of light lotus root, the corner motor is connected with the master control borad system respectively with lifting master motor, described master control borad system has one 232 communication control interfaces, and it is connected with computing machine 232 communication interfaces.
Described external control system, its control mode to the master control borad system are touch-screen control.
Described external control system, its control mode to the master control borad system are manually middle control control.
Described external control system, its control mode to the master control borad system are remote control control.
Described 232 communication control interfaces are the communication control interface of breath feedback of taking a message.
Described 232 communication control interfaces are the communication control interface of the breath feedback of not taking a message.
The invention has the beneficial effects as follows:
1, stable performance, intelligent strong adapts to different demands.
2, compatible strong, four kinds of outer Jie of utilization touch-screen, 232 communication interfaces, remote control, manual middle control are controlled input modes.
3, touch screen technology is used the control of system so far, has solved by key control loose contact, the irreducible difficult problem of button, and sturdy and durable, reaction velocity fast, saved the space, easy to use simple and easy, improved control efficiency.
4, shake control control address sign indicating number and write in the single-chip microcomputer, can not cause losing of address code.
5,232 international communication butt joints have the function that job information feeds back, and are intelligent more.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is a system chart of the present invention.
Fig. 2 is the circuit theory diagrams of master control borad of the present invention.
Fig. 3 is the enlarged diagram of communication control circuit of the present invention.
Fig. 4 is the circuit theory diagrams that light lotus root of the present invention detects interface.
Embodiment
As shown in Figure 1, LCD lifter of the present invention and electromotion up-down intelligent integration control system for projector, include the master control borad system, 232 communication control interfaces, external control system, master control borad includes power module at least, the single-chip machine information processing module, the relay group, remote control module, the master control borad system has one 232 communication control interfaces, one termination of master control borad is gone into the power supply of 220V, another termination external control system, external control system can be controlled by touch-screen, control control and remote control control realize the control to master control borad manually, wherein, touch-screen control is controlled the single-chip machine information processing module of master control borad, control control and remote control control are controlled the remote control module of master control borad manually, upper stroke switch, lower stroke switch, the control of light lotus root, the corner motor is connected with the master control borad system respectively with lifting master motor, and 232 communication control interfaces are connected with 232 communication interfaces of computing machine.
In conjunction with Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the course of work with explanation system of the present invention: the user can send " rising " order to system by outside each man-machine dialogue interface, and the control difference of each interface: when controlling with touch-screen, the PBO port of CPU correspondence can receive the low level signal about 0V; When controlling with wireless remote control, system receives wireless signal by wireless receiving/demodulation module and comes, and sends chip PT2272 decoding to, is finally sent to the PB6 port of CPU by the DO port of the PT2272 high level about with 4V; When controlling with control in manual, the PD6 port of CPU will be received the high level signal about 5V, and the PD7 port can receive the low level signal about 0V simultaneously; When with 232 Communication Control, the PDO of CPU (RXD) serial port will be received CSS (self-defined ASCII character signal) control signal.
When CPU recognizes the order of one of them man-machine dialogue interface, to react rapidly, according to the direction of Z1Z2-＞Z2Z3-＞Z3Z1 attracting electric relay in turn successively, thereby input ac power successively drives liquid crystal display or projector and rises so that main motor is rotated in the forward.When liquid crystal display or projector run to suitable position, the 1 action conducting of upward stroke switch S, the PC4 port of CPU will receive the low level signal of 0V at this moment, and disconnection relay K 1, the conducting state of K2 and K3, make lifting master motor stop the rotation, then, the output low level signal is to Z4 attracting electric relay K4, and the output high level signal disconnects relay K 5 to Z5, startup corner motor H, be rotated in the forward, when liquid crystal display or projector rotate to certain proper angle, trigger optocoupler signal G1, the PD3 port of CPU is received the 0V low level signal and is exported high level signal to Z4 disconnection relay K 4 simultaneously, stop H corner motor, finish all processes of rising.
Give computing machine by PD1 (TXD) feedback OK (self-defined ASCII character signal) signal then, illustrate that whole uphill process finishes, if do not receive the signal of travel switch within a certain period of time, CPU will tell that computing machine demonstration work is undesired and stop any action by the signal of PD1 (TXD) feedback ERROR (self-defined ASCII character signal), as reset the message processing program self check that can automatically reset.
Liquid crystal display or projector's angle can be passed through any transfer angle of touch-screen KEY.
The user also can send " decline " order to system by outside each man-machine dialogue interface, and when controlling with touch-screen, the PB1 port of CPU correspondence can receive the low level signal about 0V; When controlling with wireless remote control, system receives wireless signal by wireless receiving/demodulation module and comes, and sends chip PT2272 decoding to, is finally sent to the PB7 port of CPU by the D1 port of the PT2272 high level about with 4V; When control was controlled in using manually, the PD6 port of CPU will receive that the high level signal while PD7 port about 0V can receive the low level signal about 5V; When with 232 Communication Control, the PDO of CPU (RXD) serial port will be received the control signal of CXJ (self-defined ASCII character signal).
When CPU recognizes the order of one of them man-machine dialogue interface, to react rapidly, disconnect relay K 4 by the output high level signal to Z4, and the output low level signal is to Z5 attracting electric relay K5 conducting control light lotus root 2, start corner motor H, reverse rotation, when liquid crystal display or projector rotate to original angle, trigger optocoupler signal G2, the PD3 port of CPU is received the 0V low level signal and is exported high level signal and disconnects relay K 5 to Z5 simultaneously, stop H corner motor, then according to the direction of Z3Z2-＞Z2Z1-＞Z1Z3 attracting electric relay in turn successively, thereby input ac power successively makes winner's motor reverse rotation and drives liquid crystal display or projector descends.When liquid crystal display or projector run to suitable position, the 2 action conductings of descending stroke switch S, the PC6 port of CPU will receive the low level signal of 0V and disconnect the conducting state of relay K 1, K2 and K3 this moment, make lifting master motor I stop the rotation, and finish all processes of decline.
Claims (6)
1. LCD lifter and electromotion up-down intelligent integration control system for projector, it is characterized in that: include the master control borad system, 232 communication control interfaces and external control system, the master control borad system has power module, the single-chip machine information processing module, the relay group, remote control module, external control system is used for the single-chip machine information processing module and the remote control module of master control borad are controlled, one termination power input end of master control borad system, the other end is connected with external control system, upper stroke switch, lower stroke switch, the control of light lotus root, the corner motor is connected with the master control borad system respectively with lifting master motor, described master control borad system has one 232 communication control interfaces, and it is connected with computing machine 232 communication interfaces.
2. LCD lifter according to claim 1 and electromotion up-down intelligent integration control system for projector is characterized in that: described external control system, its control mode to the master control borad system are touch-screen control.
3. LCD lifter according to claim 1 and electromotion up-down intelligent integration control system for projector is characterized in that: described external control system, its control mode to the master control borad system are manually middle control control.
4. LCD lifter according to claim 1 and electromotion up-down intelligent integration control system for projector is characterized in that: described external control system, its control mode to the master control borad system are remote control control.
5. LCD lifter according to claim 1 and electromotion up-down intelligent integration control system for projector is characterized in that: described 232 communication control interfaces are the communication control interface of breath feedback of taking a message.
6. LCD lifter according to claim 1 and electromotion up-down intelligent integration control system for projector is characterized in that: described 232 communication control interfaces are the communication control interface of the breath feedback of not taking a message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100265089A CN101231531A (en) | 2007-01-25 | 2007-01-25 | LCD lifter and electromotion up-down intelligent integration control system for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100265089A CN101231531A (en) | 2007-01-25 | 2007-01-25 | LCD lifter and electromotion up-down intelligent integration control system for projector |
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| Publication Number | Publication Date |
|---|---|
| CN101231531A true CN101231531A (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100265089A Pending CN101231531A (en) | 2007-01-25 | 2007-01-25 | LCD lifter and electromotion up-down intelligent integration control system for projector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102578808A (en) * | 2012-01-21 | 2012-07-18 | 张翼洲 | Interruptive automatic control lifter for liquid crystal display on basis of single chip microcomputer |
| CN102591232A (en) * | 2012-01-21 | 2012-07-18 | 张翼洲 | Automatic control lifter for achieving liquid crystal display query based on single chip microcomputer |
| CN103217913A (en) * | 2012-01-21 | 2013-07-24 | 伊犁师范学院 | Query-type remote control system |
| CN106527022A (en) * | 2016-12-02 | 2017-03-22 | 衍视电子科技（上海）有限公司 | Accurate holographic projection display system of vehicle |
-
2007
- 2007-01-25 CN CNA2007100265089A patent/CN101231531A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102578808A (en) * | 2012-01-21 | 2012-07-18 | 张翼洲 | Interruptive automatic control lifter for liquid crystal display on basis of single chip microcomputer |
| CN102591232A (en) * | 2012-01-21 | 2012-07-18 | 张翼洲 | Automatic control lifter for achieving liquid crystal display query based on single chip microcomputer |
| CN103217913A (en) * | 2012-01-21 | 2013-07-24 | 伊犁师范学院 | Query-type remote control system |
| CN106527022A (en) * | 2016-12-02 | 2017-03-22 | 衍视电子科技（上海）有限公司 | Accurate holographic projection display system of vehicle |
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Open date: 20080730 |