CN203070571U - Wireless sound-amplifying screen-free whiteboard projection control system - Google Patents
Wireless sound-amplifying screen-free whiteboard projection control system Download PDFInfo
- Publication number
- CN203070571U CN203070571U CN 201220615816 CN201220615816U CN203070571U CN 203070571 U CN203070571 U CN 203070571U CN 201220615816 CN201220615816 CN 201220615816 CN 201220615816 U CN201220615816 U CN 201220615816U CN 203070571 U CN203070571 U CN 203070571U
- Authority
- CN
- China
- Prior art keywords
- function
- wireless
- bluetooth
- computer
- infrared
- Prior art date
- 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
Links
Images
Abstract
The utility model discloses a wireless sound-amplifying screen-free whiteboard projection control system, which relates to the technical field of teaching projection. The system comprises a computer, a projector and a projection screen which has infrared reflection function. The computer has the function of dual-path audio data receiving and transmitting through Bluetooth and is wirelessly connected with an integrated projection control machine which includes a whiteboard receiver, a wireless dual-path audio receiving and transmitting system and a Bluetooth search system, wherein the whiteboard receiver is provided with infrared Bluetooth receiving function, the wireless dual-path audio receiving and transmitting system has a fixed-frequency wireless receiving module and a Bluetooth audio receiving module, and the Bluetooth search system includes a digital stereo power amplification system with dual-path audio frequency mixing function and has remote control function. The wireless sound-amplifying screen-free whiteboard projection control system makes the promotion and application of teaching modernization possible in broad urban and rural areas, has the advantages of low cost, strong function and good portability and can be used in any environment.
Description
Technical field
The utility model relates to teaching shadow casting technique field, specifically is that a kind of wireless amplifying exempts to shield the control of blank shadow
System.
Background technology
The core that China spreads IT education is the informationization of classroom instruction.Advance in that classroom instruction is informationalized
Emerged various multimedia teaching facilities in the journey, the conditional electronic blank generally is divided into 85 cun, 100 cun, 120
Very little three kinds, 85 cun screen is too little, is not suitable for traditional classroom instruction, and the latter is restricted because of hardware cost,
What it was higher relatively acquires and maintenance cost, makes it become the bottleneck of widespread use and popularization.Though electronic reciprocal
Blank has stronger interactive teaching function, but existing whiteboard system, function is mostly very single, also need be used by means of equipment such as the independent power amplification system that amplifies, wireless or cable microphone transmission systems, so just make cost can not be in any more, field engineering is loaded down with trivial details, management difficulty increases.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of wireless amplifying to exempt to shield blank shadow control system, solved the existing existing function singleness problem of mutual whiteboard system, not only can be on screen direct control computer-projector displaying contents or free writing on the blackboard mark, and can have ANTENN AUDIO simultaneously and amplify and decide the combination property that the frequency wireless microphone amplifies.
The utility model is realized with following technical scheme: a kind of wireless amplifying exempts to shield blank shadow control system, comprises computer, projector and the projection screen with infrared external reflection function; Described computer is the computer with the reception of bluetooth two-way and transmitting audio frequency data function, also comprise a shadow control all-in-one that is connected with computer wireless, described shadow control all-in-one comprises the blank receiver with infrared Bluetooth receiving function, the digital stereo power amplification system that has the double-channel audio wireless receiving system of deciding frequency wireless receiving module and Bluetooth audio frequency receiver module and have double-channel audio mixing function.
The beneficial effects of the utility model are: direct control computer-projector displaying contents or free writing on the blackboard mark, wireless blue tooth are play the computer audio frequency file and are decided the frequency wireless microphone and amplify on screen, and triple functions makes teaching modernization become possibility in the promotion and application of vast both urban and rural area.Low-cost, function strong, good portability, can use in any environment.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model schematic diagram.
Embodiment
As shown in Figure 1, wireless amplifying exempts to shield the projection screen 1 that there are a computer 4, projector 2 in blank shadow control system and have the infrared external reflection function; Computer 4 is equipped with electronic whiteboard software for having the bluetooth two-way and receive and the computer of transmitting audio frequency data function in the computer, be connected by the VGA data line between computer 4 and the projector 2.
Computer 4 wireless connections one shadow control all-in-one 3, described shadow control all-in-one 3 comprise blank receiver 31 with infrared Bluetooth receiving function, have the double-channel audio wireless receiving system of deciding frequency wireless receiving module 32 and Bluetooth audio frequency receiver module 35, have the digital stereo power amplification system 33 of double-channel audio mixing function and have the bluetooth discovery system 34 of distant control function.The blank receiver has infrared tracking and coordinate setting function, be used for catching the infrared signal that the fixed pen of voice transmission blank frequently sends, and by positioning software tracing and positioning infrared moving track, carry out computation on the screen or to functions such as character image mark thereby be implemented in.
Shadow control all-in-one 3 by bluetooth and infrared technique wireless with one have infrared and the Radio infrared blank pen of penetrating function that takes place frequently surely is used, the fixed pen of voice transmission blank frequently not only has blank and writes infrared pen except writing marking Function, can also be directly as wireless microphone.The fixed pen of voice transmission blank frequently has a penholder and control circuit, described circuit comprises luminotron driving circuit, self-locking switch, battery and fixed wireless transmitter module frequently, and battery is given luminotron driving circuit or the power supply of fixed wireless transmitter module frequently respectively by the self-locking switch; The luminotron driving circuit is used for driving infrared-emitting diode.
Because a plurality of module combinations of machine intimate, electric power system need provide different voltage integrated modes, to satisfy the voltage request of bluetooth module, power amplifier module, infrared reception locating module, the fixed different piece of voice receiver module and remote control etc. frequently, the utility model adopts has two voltage transformation module electric power systems.
The utility model is integrated digital and electronic infrared technique, computer technology, multimedia technology, Bluetooth technology and video and audio frequency technology applications etc.And wireless amplifying exempted from screen and can be installed in all kinds of laboratories, computer network classroom, sound lab, audio-visual education programme classroom and library automation etc. from plate and locate, and can strengthen the instructional function of this class infrastructure greatly.Wireless amplifying exempts to shield the teaching efficiency that blank shadow control all-in-one and the complementary combination of giant-screen multimedia overhead projector can be strengthened large-scale lecture or lecture theater.
The utlity model has following function: 1, use the fixed pen of voice transmission blank frequently can be on screen direct control computer-projector displaying contents or free writing on the blackboard mark; 2, in the classroom without any public address equipment, native system can directly amplify by the wireless blue tooth pattern and play the computer audio frequency file; 3, native system inside decide the frequency receiver module can will decide frequently the wireless speech signal that sends of voice blank pen receive, and then amplify by double-channel audio mixing power amplification system in the machine, replace the conventional wireless microphone, the combination property height.
Claims (3)
1. wireless amplifying exempts to shield blank shadow control system, comprises computer (4), projector (2) and the projection screen (1) with infrared external reflection function; It is characterized in that: described computer (4) is for having the computer of the reception of bluetooth two-way and transmitting audio frequency data function, also comprise one with the shadow control all-in-one (3) of computer (4) wireless connections, described shadow control all-in-one (3) comprises blank receiver (31) with infrared Bluetooth receiving function, has the double-channel audio wireless receiving system of deciding frequency wireless receiving module (32) and Bluetooth audio frequency receiver module (35) and the digital stereo power amplification system (33) with double-channel audio mixing function.
2. wireless amplifying according to claim 1 exempts to shield blank shadow control system, it is characterized in that: shadow control all-in-one (3) connects one and has infrared and the Radio infrared blank pen frequency modulation emission function.
3. wireless amplifying according to claim 1 and 2 exempts to shield blank shadow control system, it is characterized in that: be connected by the VGA data line between computer (4) and the projector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615816 CN203070571U (en) | 2012-11-20 | 2012-11-20 | Wireless sound-amplifying screen-free whiteboard projection control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615816 CN203070571U (en) | 2012-11-20 | 2012-11-20 | Wireless sound-amplifying screen-free whiteboard projection control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070571U true CN203070571U (en) | 2013-07-17 |
Family
ID=48769336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220615816 Expired - Fee Related CN203070571U (en) | 2012-11-20 | 2012-11-20 | Wireless sound-amplifying screen-free whiteboard projection control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105407446A (en) * | 2014-09-15 | 2016-03-16 | 中强光电股份有限公司 | Bluetooth device, projection device and data transmission method |
-
2012
- 2012-11-20 CN CN 201220615816 patent/CN203070571U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105407446A (en) * | 2014-09-15 | 2016-03-16 | 中强光电股份有限公司 | Bluetooth device, projection device and data transmission method |
| CN105407446B (en) * | 2014-09-15 | 2019-04-12 | 中强光电股份有限公司 | A kind of blue-tooth device, projection arrangement and data transmission method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201294037Y (en) | Controlled equipment, control terminal and remote-control system | |
| CN201820372U (en) | Wireless interactive audio/video system and equipment thereof | |
| CN101923792A (en) | Wireless multimedia teaching system and method | |
| CN103123752B (en) | Audio-video playing system and method based on electronic whiteboard | |
| CN103428469A (en) | Method and system for achieving video conference electronic whiteboard and a video conference device | |
| CN202150192U (en) | Portable multimedia teaching integrated machine | |
| CN203224859U (en) | Interactive electronic whiteboard used for audio video wireless transmission of projector | |
| CN205230394U (en) | Integrated central controller of multimedia teaching system | |
| CN203070571U (en) | Wireless sound-amplifying screen-free whiteboard projection control system | |
| CN204406727U (en) | Based on the wireless display teaching equipment of bluetooth | |
| CN204087547U (en) | A kind of multimedia finance and economics tutoring system | |
| CN201435164Y (en) | Large-screen wireless demo auxiliary system | |
| CN202948584U (en) | Multimedia touch all-in-one machine | |
| CN202331846U (en) | Audio and video playing system based on electronic whiteboard | |
| CN204992154U (en) | Smart jack and system with wireless interactive function | |
| CN105469661A (en) | Intelligent computer system capable of real-time interaction | |
| CN101963749B (en) | Portable multimedia projector | |
| CN104952306A (en) | Laser pointer with page turning function | |
| CN205943147U (en) | Novel real teaching system that instructs of accounting computerization | |
| CN202694029U (en) | WIFI mobile terminal multimedia playing system based on vehicle-mounted navigation | |
| CN205050391U (en) | Remove multi -media classroom teaching device | |
| CN201975044U (en) | Cell phone type advertisement set system for advertisement transmission | |
| CN105471448B (en) | Network edition team wisdom explanation emitter and system architecture and positioning, switching method | |
| CN202422054U (en) | Wireless hand writing board with digital audio/video transmission and entity exhibition stand functions | |
| CN105243880A (en) | Electronic teaching system |
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: 20130717 Termination date: 20161120 |