CN202524481U - Micro multi-channel wireless image audio transmission system - Google Patents
Micro multi-channel wireless image audio transmission system Download PDFInfo
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- CN202524481U CN202524481U CN2011204325076U CN201120432507U CN202524481U CN 202524481 U CN202524481 U CN 202524481U CN 2011204325076 U CN2011204325076 U CN 2011204325076U CN 201120432507 U CN201120432507 U CN 201120432507U CN 202524481 U CN202524481 U CN 202524481U
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Abstract
The utility model relates to a micro multi-channel wireless image audio transmission system, being divided into three parts, an image audio collecting transmitting terminal, a control singlechip and a receiving terminal, wherein the receiving terminal is connected with a PC machine through a USB interface, being able to play the received image and audio files in real-time and to automatically save the received image and audio files; the user can select image and audio through the PC machine and switch the image resolution and the channel; the collecting transmitting terminal completes four channels of JPEG image data, one channel of IMA-ADPCM audio data collection and wireless transmission; the PC machine receiving terminal part completes receiving, playing and saving of the image and audio data, and can control transmission of the image and audio and changes of the image pixel and wireless channel, thus being able to effectively avoid wireless channel interference in the air; and the system utilizes the LPC2378 series high speed low power consumption ARM as the main control board, the C328 JPEG camera module for image collection, VS1003 IMA_ADPCM_audio coding chip for audio collection, and CC1100 wireless radio frequency chip for completing wireless transmission and receiving of the image and audio data, and control and parameter setting of the image and audio.
Description
Technical field
The utility model relates to a kind of miniature multipath wireless image audio transmission system, especially can carry out wireless transmission to image and audio signal.
Background technology
At present, at home and abroad on the market, the main wireless image transmission system of releasing is numerically controlled analog video image wireless transmission and digital network video image wireless transmission two series products mostly.According to the signal that transmits in the channel, the image transmission can be divided into analogue transmission and Digital Transmission dual mode.The analogue transmission of image generally is through certain speed image periodically to be scanned, and becomes the different big or small signals of telecommunication to the point of different brightness on the image, sends out then.The Digital Transmission of image is first signal digitalized analog image, then digitized signal is carried out encoding compression.Along with digital technology, the fast development of computer technology and large scale integrated circuit, the digital transmission technology of image has been obtained very big progress in recent years.The Digital Transmission of image has strong interference immunity, is easy to series of advantages such as encryption, and therefore, digital transmission mode has all been adopted in most of image transmission.
Summary of the invention
The utility model miniature multipath wireless image audio transmission system is mainly used in emergent graphics/audio transmission, to all kinds of accidents and large-scale activity.And at receiving terminal, the user can store replay image and audio-frequency information, and collection in worksite end image resolution ratio and channel are switched.
The utility model solves the technical scheme that its technical problem adopted: this miniature multipath wireless image audio transmission system is divided into graphics/audio collection emitting end, control single chip computer and receiving terminal three parts.The image acquisition circuit of graphics/audio collection emitting end has 4 C328 photographing modules, links to each other with 4 serial ports of control single chip computer through serial ports, and control single chip computer is controlled camera through the transmission instruction and carried out parameter setting and IMAQ.The image transtation mission circuit of graphics/audio transmitting terminal adopts the CC1100 radio frequency chip to carry out the emission of graphics/audio, and is connected respectively on four serial ports of single-chip microcomputer through 4 line spi bus interfaces (SI, SO, SCLK and CSn).The audio collection circuit of graphics/audio collection emitting end can be gathered 1 tunnel audio signal, and adopts VS1003 speech coding chip to realize voice collecting and storage, and links to each other with the SSP-synchronous serial interface controller of control single chip computer.Receiving terminal is connected to PC through USB interface, image and audio file that the real-time broadcast of ability receives, and storage automatically.The receiving terminal user can carry out the selection of image and audio frequency through PC, the switching of image resolution ratio and channel, and wherein the collection emitting end is accomplished 4 road jpeg image data, 1 road IMA-ADPCM audio data collecting and wireless transmission.The PC receiving terminal is partly accomplished the reception of image and voice data, plays, and the on-air radio channel disturbance can be effectively avoided in storage, and the change of the transmission of may command image and audio frequency and image pixel and wireless channel.System adopts LPC2378 series of high speed low-power consumption ARM as master control borad; C328 JPEG photographing module is as IMAQ; VS1003 IMA_ADPCM_ audio encoding chip is as audio collection; The CC1100 radio frequency chip is accomplished the wireless transmission and the reception of graphics/audio data, and the control of image and audio frequency and parameter setting.
The beneficial effect of the utility model is; Receive when this miniature multipath wireless image audio transmission system can carry out 4 tunnel picture signals and send; The reception of 1 tunnel audio signal and transmission, and can carry out the selection of image and audio frequency, the switching of image resolution ratio and channel at receiving terminal.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the functional block diagram of the utility model.
Fig. 2 is the LPC2378 governor circuit minimum system design of the utility model.
Fig. 3 is the concrete design frame chart of the C328 image acquisition circuit of the utility model.
Fig. 3 (a) main control device is connected block diagram synchronously with the C328 photographing module
Fig. 3 (b) is provided with pixel
Fig. 3 (c) is provided with the packet size
Fig. 3 (d) carries out the image-capture flow process of taking pictures
Fig. 3 (e) obtains image
Fig. 4 is the concrete design circuit figure of VS1003 audio collection circuit design of the utility model.
Fig. 4 (a) VS1003 audio collection circuit
Fig. 4 (b) VS1003 audio collection module and LPC2378 interface circuit figure
Fig. 5 is the CC1100 wireless sending module and the LPC2378 interface circuit figure of the utility model.
Embodiment
In Fig. 1, the utility model has graphics/audio collection emitting end, control single chip computer and receiving terminal three parts, and graphics/audio collection emitting end can be gathered 4 tunnel picture signals and 1 tunnel audio signal through linking to each other with control single chip computer.
Fig. 4 is the VS1003 audio collection module and the LPC3278 interface circuit figure of the utility model.After Electret condenser microphone MIC converts the voice signal that picks up to the signal of telecommunication; Behind coupling capacitance C9 and C11, import VS1003 from MICP, MICN end; Amplify through MIC AMP amplifier then; Through MUX voice selecting input switch, then get into VSDSP and carry out the digitalization compressed encoding process through single channel ADC sampling back, the dateout form is set as required.And for the LPC2378 chip, need its 7 IO mouths to link to each other with VC1003 altogether, SO, SI and SCLK meet MISOO, MOSIO and the SCLKO of LPC2378 respectively, and remaining four line is received other four universal I/O ports of LPC2378.
Claims (3)
1. miniature multipath wireless image audio transmission system; Comprise graphics/audio collection emitting end; Control single chip computer and receiving terminal three parts; It is characterized in that: the image acquisition circuit of graphics/audio collection emitting end has 4 C328 photographing modules, links to each other with 4 serial ports of control single chip computer through serial ports, and control single chip computer is controlled camera through the transmission instruction and carried out parameter setting and IMAQ.
2. miniature multipath wireless image audio transmission system according to claim 1; It is characterized in that: the image transtation mission circuit of graphics/audio transmitting terminal; Adopt the CC1100 radio frequency chip to carry out the emission of graphics/audio, and be connected respectively on four serial ports of single-chip microcomputer through 4 line spi bus interfaces (SI, SO, SCLK and CSn).
3. miniature multipath wireless image audio transmission system according to claim 1; It is characterized in that: the audio collection circuit of graphics/audio collection emitting end; Can gather 1 tunnel audio signal; Adopt VS1003 speech coding chip to realize voice collecting and storage, and link to each other with the SSP-synchronous serial interface controller of control single chip computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204325076U CN202524481U (en) | 2011-11-04 | 2011-11-04 | Micro multi-channel wireless image audio transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204325076U CN202524481U (en) | 2011-11-04 | 2011-11-04 | Micro multi-channel wireless image audio transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524481U true CN202524481U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204325076U Expired - Fee Related CN202524481U (en) | 2011-11-04 | 2011-11-04 | Micro multi-channel wireless image audio transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932587A (en) * | 2012-11-20 | 2013-02-13 | 无锡成电科大科技发展有限公司 | Pickup optical system integrated with signal transmitting device |
| CN110504985A (en) * | 2019-09-24 | 2019-11-26 | 天津七一二通信广播股份有限公司 | A kind of train dispatch radio communication channel machine equipment and implementation method with digitized audio interface |
-
2011
- 2011-11-04 CN CN2011204325076U patent/CN202524481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932587A (en) * | 2012-11-20 | 2013-02-13 | 无锡成电科大科技发展有限公司 | Pickup optical system integrated with signal transmitting device |
| CN110504985A (en) * | 2019-09-24 | 2019-11-26 | 天津七一二通信广播股份有限公司 | A kind of train dispatch radio communication channel machine equipment and implementation method with digitized audio interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing University of Technology Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20131104 |