CN100556133C - Support the wireless network camera of bluetooth and wireless ethernet - Google Patents
Support the wireless network camera of bluetooth and wireless ethernet Download PDFInfo
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- CN100556133C CN100556133C CNB2007100699529A CN200710069952A CN100556133C CN 100556133 C CN100556133 C CN 100556133C CN B2007100699529 A CNB2007100699529 A CN B2007100699529A CN 200710069952 A CN200710069952 A CN 200710069952A CN 100556133 C CN100556133 C CN 100556133C
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Abstract
The invention discloses a kind of utilize single-chip processor and single-chip wireless access system realize the digital video compression and and the network shooting machine of wireless transmission function, comprise network shooting machine itself, video input apparatus and audio input device, wireless access can also can insert wireless ethernet and bluetooth separately simultaneously.Described web camera is core with the dsp processor, external video AD transducer, audio A/D converter, interface circuit, data storage SDRAM, program storage FLASH and single-chip radio access module.Interface circuit links to each other with audio A/D converter; Described video AD transducer, audio A/D converter correspondence respectively are provided with video input interface and audio input interface.In addition, the wireless access chip connects Anneta module and wireless interface circuit module in the single-chip radio access module.Described dsp processor adopts real time operating system RTOS, finishes video coding and wireless transmission function simultaneously on monolithic dsp processor core.
Description
Technical field
The present invention relates to a kind of possess bluetooth and wireless ethernet linkage function video monitoring equipment, specifically be meant a kind of utilize single-chip processor and single-chip wireless access system realize the digital video compression and and the network shooting machine of wireless transmission function, wherein wireless transmission function is supported bluetooth and wireless ethernet simultaneously, belongs to electronic device field.
Background technology
Along with the use of digitlization long distance control system more and more widely, because the convenience of its installation and use, the more and more appearance becomes an important class video monitoring product in the monitoring place based on the web camera of wireless transmission.
The main wireless transmission of the web camera of existing wireless transmission is a wireless ethernet, can't not use in having the place of wireless access.Because bluetooth possesses in-plant wireless transmission, do not need radio node, can be directly by wireless mode with the digital video transmission compressed in computer or in the middle of the hand-hold Bluetooth equipment.Therefore low-cost and possess two kinds of wireless access functions web camera will enlarge its scope of application and field of employment.
Summary of the invention
The invention provides a kind of utilize single-chip processor and single-chip wireless access system realize the digital video compression and and the network shooting machine of wireless transmission function, wireless transmission is supported bluetooth and wireless ethernet simultaneously, and system maintainability is good, simple in structure, cost greatly reduces, extensibility is strong.
A kind of wireless network camera of supporting bluetooth and wireless ethernet, with the monolithic dsp processor is core, have video input/output interface, audio frequency input/output interface, video D and D/A converter, audio frequency D and D/A converter, memory and network communication module, described network communication module adopts monolithic wireless access chip, realizes Bluetooth wireless transmission and Ethernet wireless transmission simultaneously.
Described dsp processor adopts real time operating system RTOS.
Described video input interface connects video input apparatus; Described audio frequency input connects audio input device.Described video input apparatus can adopt video camera; Described audio input device adopts microphone.
The special dsp processor of developing at multimedia application that the present invention adopts possesses DSP and MCU complex function, and powerful coding/decoding capability and general microprocessor control ability can be provided; Dsp processor inside has two processor cores in addition, and a processor core is realized the video/audio encoding and decoding function; Another processor core uses real time operating system RTOS in the heart, realizes the wireless transmission function of web camera.Processor is incorporated into wireless transmission and code decode algorithm on the one chip, is particularly suitable for this coding/decoding capability requirement of web camera than higher application.
The present invention adopts monolithic wireless access chip as the network communication module, wireless ethernet and Bluetooth protocol on one chip, have been realized, the sub-chip of bluetooth and two kinds of functions of wireless ethernet is encapsulated in the same chip simultaneously, can reduce the complexity of peripheral radio circuit design, and support to carry out simultaneously on the same antenna two kinds of wireless transmission.Utilize one chip to realize two kinds of wireless communication modes, will lower system cost greatly, improve reliability, simplified design.
Compare with existing web camera, the present invention adopts monolithic dsp processor and monolithic radio access module, and structure is greatly simplified, and cost greatly reduces, and extensibility strengthens.
Description of drawings
Fig. 1 is a syndeton schematic diagram of the present invention.
Wherein: the 1-web camera, 2-uses the bluetooth users of smart mobile phone, and 3-uses the wireless ethernet network user of PC device, 4-wireless ethernet access point, the input of 5-audio frequency, the input of 6-video
Fig. 2 is the internal structure block diagram of wireless network camera among the present invention;
Embodiment
As shown in Figure 1, support the internet protocol camera system that bluetooth and wireless ethernet insert, comprise intelligent network camera 1, web camera 1 outside is connected to video input apparatus 6, and connects 3 by wireless ethernet with the user, or connects 2 by bluetooth with the user.
Figure 2 shows that the internal structure block diagram of wireless network camera, as shown in the figure, web camera is a core with the monolithic dsp processor, and dsp processor is by EBIU bus external data memory storage SDRAM, program storage FLASH; By PPI1 data/address bus, iic bus and two external video AD transducers of PF mouth line; Link to each other with a PF mouth line external audio frequency AD converter by SPORTO; Dsp processor also is circumscribed with system reset module and energy supply control module in addition; Follow PF mouth line with external wireless interface chip by UART bus and spi bus and two.Wireless interface chip then is connected with radio-frequency interface circuit with radio-frequency antenna.
Wherein, the video input data bus of video AD transducer links to each other with the PPI1 bus of dsp processor, and the control line of video AD transducer links to each other with the PF mouth line of dsp processor.
The SPORT0 accent audio data bus of audio A/D converter links to each other with dsp processor.
The data/address bus of program storage FLASH and data storage SDRAM, address bus, control line link to each other with the EBIU bus of dsp processor.
Video AD transducer, audio A/D converter correspondence respectively are provided with video input interface and audio input interface; Video input interface connects video input device, and audio input interface connects voice input device; Video input device can adopt video camera, and voice input device can adopt microphone.
Dsp processor connects with wireless interface chip by the UART bus finishes the bluetooth communication function; Connect wireless ethernet ruton communication function by spi bus with wireless interface chip.
Web camera of the present invention adopts monolithic DSP BF561 processor as core processor, and its inside has two processor cores, and a processor core is realized the video/audio encoding and decoding function; Another processor core uses real time operating system RTOS in the heart, operation wireless interface chip driver, the wireless transmission of realization web camera.
During application, web camera 1 video input interface is connected video input apparatus 6 energized, realize wireless compressed digital video data transmission or Long-distance Control by the PC that links the wireless ethernet network, also can support blue equipment to carry out compressed digital video data transmission or control far away by mobile phone or other.
Claims (3)
1. wireless network camera of supporting bluetooth and wireless ethernet, with the monolithic dsp processor is core, have video input/output interface, audio frequency input/output interface, video D and D/A converter, audio frequency D and D/A converter, memory and network communication module, it is characterized in that: described network communication module adopts monolithic wireless access chip, realize Bluetooth wireless transmission and Ethernet wireless transmission simultaneously, described dsp processor inside has two processor cores, and a processor core is realized the video/audio encoding and decoding function; Another processor core uses real time operating system RTOS in the heart, operation wireless interface chip driver, the wireless transmission function of realization web camera.
2. web camera as claimed in claim 1 is characterized in that: described video input interface connects video input apparatus, and video input apparatus adopts video camera.
3. web camera as claimed in claim 1 is characterized in that: described audio frequency input connects audio input device, and audio input device adopts microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100699529A CN100556133C (en) | 2007-07-12 | 2007-07-12 | Support the wireless network camera of bluetooth and wireless ethernet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100699529A CN100556133C (en) | 2007-07-12 | 2007-07-12 | Support the wireless network camera of bluetooth and wireless ethernet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101098464A CN101098464A (en) | 2008-01-02 |
| CN100556133C true CN100556133C (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100699529A Expired - Fee Related CN100556133C (en) | 2007-07-12 | 2007-07-12 | Support the wireless network camera of bluetooth and wireless ethernet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100556133C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576388A (en) * | 2008-05-09 | 2009-11-11 | 江国庆 | Satellite positioning and navigation device |
| CN101369979B (en) * | 2008-09-17 | 2012-01-11 | 北京中星微电子有限公司 | Communication method and system for network camera and user terminal |
| CN102238367A (en) * | 2010-04-23 | 2011-11-09 | 上海东嵌科技发展有限公司 | Video monitoring system based on 3G mobile communication technology |
| CN102325247A (en) * | 2011-09-19 | 2012-01-18 | 江门市奥威斯电子有限公司 | A kind of intelligent security recorder and intelligent security register system thereof |
| CN103634612A (en) * | 2012-08-22 | 2014-03-12 | 成都爱斯顿测控技术有限公司 | Industrial-grade audio and video processing platform |
| CN103024358B (en) * | 2012-12-20 | 2016-09-28 | 华为技术有限公司 | Image transfer method and image-pickup method and relevant device and system |
| CN104506903A (en) * | 2014-12-10 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Audio/video output processing device, method and head-mounted type display device |
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2007
- 2007-07-12 CN CNB2007100699529A patent/CN100556133C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101098464A (en) | 2008-01-02 |
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Granted publication date: 20091028 Termination date: 20170712 |