CN206248994U - For the optical projection system of Digital Media teaching - Google Patents
For the optical projection system of Digital Media teaching Download PDFInfo
- Publication number
- CN206248994U CN206248994U CN201621347614.8U CN201621347614U CN206248994U CN 206248994 U CN206248994 U CN 206248994U CN 201621347614 U CN201621347614 U CN 201621347614U CN 206248994 U CN206248994 U CN 206248994U
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- CN
- China
- Prior art keywords
- projecting apparatus
- projection system
- digital media
- optical projection
- processing controller
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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.)
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Abstract
The utility model discloses a kind of optical projection system for Digital Media teaching, including projecting apparatus, projection screen, suspension rod, lowering or hoisting gear and computer, the lowering or hoisting gear is enclosed within the lower end of suspension rod；The lowering or hoisting gear includes elevating lever and the push-rod electric machine for driving elevating lever to be vertically moved up or down；The bottom of the elevating lever is connected with projecting apparatus；The projecting apparatus is provided with the range sensor for detecting projecting apparatus ground clearance, and the signal output part of the range sensor is connected with the signal input part of a processing controller；The projection screen includes the curtain of spool, volume on spool and the reel motor for driving spool to rotate；The signal input part of the push-rod electric machine and reel motor is connected with the signal output part of processing controller, and the processing controller is connected with computer by communicator and receives the control instruction from computer；This optical projection system can carry out Height Adjustment to projecting apparatus, teaching needs be met, beneficial to the raising of teaching efficiency.
Description
Technical field
The utility model is related to a kind of Digital Media instructional device, more particularly to a kind of projection for Digital Media teaching
System.
Background technology
With the development of science and technology multimedia teaching is used extensively with its lively and efficient advantage in teaching,
Multimedia teaching refers in teaching process, according to the characteristics of instructional objective and teaching object, by Instructional Design, reasonable selection
With use Modern Teaching Medium, and with Traditional teaching means organic assembling, whole course of teaching is participated in jointly, with media information
Student is acted on, rational teaching process structure, the teaching efficiency of being optimal is formed.Optical projection system is that one kind will can be schemed
Equipment on picture or VIDEO PROJECTION to curtain, can be by the different same computer of interface, VCD, DVD, BD, game machine, DV etc.
Be connected the corresponding vision signal of broadcasting.Optical projection system, existing projection system are be unable to do without in the curricula of digital media specialty
System generally comprises projecting apparatus and curtain, and projecting apparatus is suspended in the ceiling in classroom by suspension rod, and the position of projecting apparatus is fixed, used
The switch that person passes through the remote-controlled projecting apparatus of remote control；The height that this structure also results in projecting apparatus is fixed, it is impossible to according to reality
Adjustment height is needed, is unfavorable for the raising of teaching efficiency.
It is therefore desirable to be improved to the existing optical projection system for Digital Media teaching, projecting apparatus is set to enter
Row Height Adjustment, meets teaching needs, beneficial to the raising of teaching efficiency.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of optical projection system for Digital Media teaching, its throwing
Shadow instrument can carry out Height Adjustment, teaching needs be met, beneficial to the raising of teaching efficiency.
Optical projection system for Digital Media teaching of the present utility model, including projecting apparatus, projection screen, suspension rod, lifting
Device and computer, the lowering or hoisting gear are enclosed within the lower end of suspension rod；The lowering or hoisting gear includes elevating lever and is lifted for driving
The push-rod electric machine of bar vertical lift；The bottom of the elevating lever is connected with mounting disc, and the mounting disc is connected with projecting apparatus；It is described
Projecting apparatus is provided with the range sensor for detecting projecting apparatus ground clearance, the signal output part of the range sensor and
The signal input part of processing controller is connected；The projection screen includes spool, the curtain rolled up on spool and is rolled up for driving
The reel motor that axle is rotated；The signal input part of the push-rod electric machine and reel motor with the signal output part of processing controller
It is connected, the processing controller is connected with computer by communicator and receives the control instruction from computer.
Further, the reel motor is tube shaped electric machine structure.
Further, the communicator is wireless communicator structure.
Further, the push-rod electric machine is connected by speed-changing gear box with elevating lever.
Further, the range sensor is wireless laser range sensor structure.
Further, the bottom of the projecting apparatus is provided with the installation draw-in groove for mounting distance sensor.
Further, the processing controller is single-chip microcomputer.
The beneficial effects of the utility model：Optical projection system for Digital Media teaching of the present utility model, computer can
The running status of control push-rod electric machine and reel motor, so as to control the lifting of curtain, and drives elevating lever to do vertical lift fortune
Dynamic, projecting apparatus is lifted with elevating lever, so that projecting apparatus can according to actual needs carry out Height Adjustment, meets teaching need
Will, beneficial to the raising of teaching efficiency；And, range sensor can accurately the distance between measuring projector and ground, be height
Adjustment provide facility.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model.
Specific embodiment
As shown in Figure 1：The optical projection system for Digital Media teaching of the present embodiment, including projecting apparatus 1, projection screen,
Suspension rod 2, lowering or hoisting gear and computer 6, the lowering or hoisting gear are enclosed within the lower end of suspension rod 2；The lowering or hoisting gear includes elevating lever 31
With the push-rod electric machine 32 for driving elevating lever 31 to be vertically moved up or down；The bottom of the elevating lever 31 is connected with mounting disc 4, the peace
Sabot 4 is connected with projecting apparatus 1；The projecting apparatus 1 is provided with the range sensor 5 for detecting the ground clearance of projecting apparatus 1, described
The signal output part of range sensor 5 is connected with the signal input part of a processing controller 7；The projection screen includes spool
91st, curtain 92 of the volume on spool and the reel motor 93 for driving spool 91 to rotate；The push-rod electric machine 32 and spool electricity
Signal output part of the signal input part of machine with processing controller 7 is connected, and the processing controller 7 is by communicator 8 and meter
Calculation machine 6 is connected and receives the control instruction from computer 6；Communicator 8 is wireless communicator structure, is easy to arrange and controls,
Can be for example connected with computer 6 by WIFI network；The structure of projecting apparatus 1 is consistent with prior art, its can by VGA line with
Computer 6 is connected；Computer 6 can be PC；Lowering or hoisting gear is electric pushrod structure, including elevating lever 31 and push-rod electric machine 32,
The rotary motion of push-rod electric machine 32 is changed into the straight reciprocating motion of elevating lever 31；Push-rod electric machine 32 by speed-changing gear box with
Elevating lever 31 is connected, and speed-changing gear box is provided with the parts such as reduction gearing, screw rod, nut, guide pin bushing, turbine, realize speed change and
Transmission；Can be connected by bolt between the mounting disc 4 and projecting apparatus 1；Processing controller 7 can be single-chip microcomputer, for example, can be
The single-chip microcomputer of the models such as AT89S51, AT89C2051, STC12C2051, SST89E516；Computer 6 is provided with display, can show
The elevation information of projecting apparatus 1；By the input equipment on computer 6, control push-rod electric machine 32 can sent just to processing controller 7
Turn, reversion, stopping action control signal；Reel motor 92 drives spool 91 to rotate, and curtain 92 rotating with spool 91 and contracting
Put.
Computer 6 can control the running status of push-rod electric machine 32 and reel motor 93, so that the lifting of curtain 92 is controlled, and
Elevating lever 31 is driven to do vertical displacement movement, projecting apparatus 1 is lifted with elevating lever 31, so that projecting apparatus 1 can be according to reality
Border needs to carry out Height Adjustment, teaching needs is met, beneficial to the raising of teaching efficiency；And, range sensor 5 can be measured accurately
The distance between projecting apparatus 1 and ground, for the adjustment of height provides facility.
In the present embodiment, reel motor 92 is preferably tube shaped electric machine structure, and its startup is fast, retro-speed is fast, braking effect
Good, long service life；Interrelated logic computing circuit now also can be set, curtain 92 is provided with photoelectric sensor, middle photoelectric transfer
Sensor and lower photoelectric sensor, photoelectric sensor are subject to projector light according to high level is produced, and upper photoelectric sensor is located at curtain 92
Top, middle photoelectric sensor is located at the bottom of curtain 92, and lower photoelectric sensor is located on the installation portion that the bottom of curtain 92 extends downwardly,
Logical operation circuit includes not gate arithmetic unit and door arithmetic unit and nor gate arithmetic unit, and upper photoelectric sensor passes through not gate computing
Device is connected to the input with door arithmetic unit, and lower photoelectric sensor is connected to the input with door arithmetic unit, middle photoelectric sensor
The input of nor gate arithmetic unit is connected to, with the input and tubulose that the output end of door arithmetic unit is connected to nor gate arithmetic unit
Motor, the output end of nor gate arithmetic unit is connected to tube shaped electric machine, can drive tube shaped electric machine with door arithmetic unit output high level
Projection screen body moves down expansion, and nor gate arithmetic unit output high level can make tube shaped electric machine drive curtain 92 to move up receipts
Hold together.
In the present embodiment, the bottom of projecting apparatus 1 is provided with the installation draw-in groove for mounting distance sensor 5；The distance is passed
Sensor 5 is preferably wireless laser range sensor structure；Range sensor 5 by control circuit, power supply, laser distance sensor and
RF transmit-receive circuit is constituted, and control circuit is made up of microcontroller and first crystal resonator, and microcontroller is humorous with first crystal
The device that shakes is connected, and laser distance sensor is made up of generating laser, laser ranging module and laser pickoff, generating laser,
Laser ranging module and laser pickoff are sequentially connected with, and RF transmit-receive circuit is by radio-frequency receiving-transmitting integrated circuit, the second crystal resonant
Device and antenna are constituted, and radio-frequency receiving-transmitting integrated circuit, the second crystal resonator and antenna are sequentially connected with, power supply respectively with laser distance
Sensor and control circuit connection, control circuit control circuit by micro-control unit and laser distance sensor wireless connection
It is connected with RF transmit-receive circuit by spi bus.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, although ginseng
The utility model has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from the objective and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (7)
1. it is a kind of for Digital Media teaching optical projection system, it is characterised in that：Including projecting apparatus, projection screen, suspension rod, lifting
Device and computer, the lowering or hoisting gear are enclosed within the lower end of suspension rod；The lowering or hoisting gear includes elevating lever and is lifted for driving
The push-rod electric machine of bar vertical lift；The bottom of the elevating lever is connected with projecting apparatus；The projecting apparatus is provided with for detecting throwing
The signal input part of the range sensor of shadow instrument ground clearance, the signal output part of the range sensor and a processing controller
It is connected；The projection screen includes the curtain of spool, volume on spool and the reel motor for driving spool to rotate；It is described to push away
The signal input part of bar motor and reel motor is connected with the signal output part of processing controller, and the processing controller passes through
Communicator is connected with computer and receives the control instruction from computer.
2. it is according to claim 1 for Digital Media teaching optical projection system, it is characterised in that：The reel motor is
Tube shaped electric machine structure.
3. it is according to claim 2 for Digital Media teaching optical projection system, it is characterised in that：The communicator is nothing
Line communicator structure.
4. it is according to claim 3 for Digital Media teaching optical projection system, it is characterised in that：The push-rod electric machine leads to
Speed-changing gear box is crossed to be connected with elevating lever.
5. it is according to claim 3 for Digital Media teaching optical projection system, it is characterised in that：The range sensor
It is wireless laser range sensor structure.
6. it is according to claim 5 for Digital Media teaching optical projection system, it is characterised in that：The bottom of the projecting apparatus
Portion is provided with the installation draw-in groove for mounting distance sensor.
7. it is according to claim 6 for Digital Media teaching optical projection system, it is characterised in that：The processing controller
It is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347614.8U CN206248994U (en) | 2016-12-09 | 2016-12-09 | For the optical projection system of Digital Media teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347614.8U CN206248994U (en) | 2016-12-09 | 2016-12-09 | For the optical projection system of Digital Media teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248994U true CN206248994U (en) | 2017-06-13 |
Family
ID=59006008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347614.8U Expired - Fee Related CN206248994U (en) | 2016-12-09 | 2016-12-09 | For the optical projection system of Digital Media teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206248994U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344763A (en) * | 2018-02-23 | 2018-07-31 | 重庆工程职业技术学院 | A kind of unilateral Nuclear Magnetic Resonance Measurement instrument tutoring system |
| CN108989781A (en) * | 2018-09-12 | 2018-12-11 | 陕西理工大学 | A kind of projection arrangement based on image procossing |
| CN110908233A (en) * | 2019-12-06 | 2020-03-24 | 四川长虹电器股份有限公司 | Control system and method for integrated cabinet of ultra-short-focus projector |
-
2016
- 2016-12-09 CN CN201621347614.8U patent/CN206248994U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344763A (en) * | 2018-02-23 | 2018-07-31 | 重庆工程职业技术学院 | A kind of unilateral Nuclear Magnetic Resonance Measurement instrument tutoring system |
| CN108344763B (en) * | 2018-02-23 | 2024-02-27 | 重庆工程职业技术学院 | Unilateral nuclear magnetic resonance measuring instrument teaching system |
| CN108989781A (en) * | 2018-09-12 | 2018-12-11 | 陕西理工大学 | A kind of projection arrangement based on image procossing |
| CN108989781B (en) * | 2018-09-12 | 2020-11-24 | 陕西理工大学 | Projection arrangement based on image processing |
| CN110908233A (en) * | 2019-12-06 | 2020-03-24 | 四川长虹电器股份有限公司 | Control system and method for integrated cabinet of ultra-short-focus projector |
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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 |
Granted publication date: 20170613 Termination date: 20171209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |