CN104519257A - Dual-stream camera module of VTM machine and shooting method of dual-stream camera module - Google Patents
Dual-stream camera module of VTM machine and shooting method of dual-stream camera module Download PDFInfo
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- CN104519257A CN104519257A CN201410834782.9A CN201410834782A CN104519257A CN 104519257 A CN104519257 A CN 104519257A CN 201410834782 A CN201410834782 A CN 201410834782A CN 104519257 A CN104519257 A CN 104519257A
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Abstract
The invention discloses a dual-stream camera module of a VTM (virtual teller machine) machine. The dual-stream camera module comprises a first PCB (printed circuit board) and a second PCB which are arranged in parallel up and down, a lens, two digital microphones, a CMOS (complementary metal oxide semiconductor) image sensor, a DSP (digital signal processor) micro processor, a connector and an output interface. The invention also discloses a shooting method of the dual-stream camera module of the VTM machine. The shooting method comprises the steps: the CMOS image sensor is used for converting a light signal and an audio signal into a digital image signal; the DSP micro processor performs digital signal processing and encoding so as to simultaneously output the image signal and the audio signal in the manners of a high-resolution primary stream and a low-resolution secondary stream; after feedback of a network broadband, the DSP micro processor adjusts the resolution of the secondary stream so as to match the network broadband with the stream; an obtained high-pixel image is directly stored locally, and a low-pixel image is used for remote browsing monitoring. According to the shooting method disclosed by the invention, the network bottleneck is broken through, and the image quality and the transmission quality can be combined; image information can be efficiently and quickly browsed and stored.
Description
Technical field
The present invention relates to technique for taking field, particularly a kind of VTM dual code stream camera module and image pickup method thereof.
Background technology
VTM machine (long-range wisdom bank) is a kind of remote financial Possum, and it can replace bank counter to perform financial service, and it can realize man-machine interaction, and this just needs a large amount of human-computer interaction module, and wherein photographing module is widely used.
When carrying out high-quality image information and gathering, its data volume is very large, but, in existing technology, because of very high to network requirement during remote data transmission, be difficult to realize long-range high definition and browse, bring drawback to remote monitoring.Excavate by carrying out understanding to disclosed prior art, find all not disclose a kind of VTM machine dual code stream camera module and image pickup method thereof both at home and abroad at present.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to, there is provided one can realize main bit stream high-resolution, secondary code stream low resolution two kinds of code streams export simultaneously, be convenient to remote browse, and reduce remote monitoring to the requirement of network, meet the VTM machine dual code stream camera module of the safety monitoring demand of VTM machine.
Another object of the present invention is to, the image pickup method of aforementioned VTM dual code stream camera module is provided.
The present invention for the adopted technical scheme that achieves the above object is:
A kind of VTM machine dual code stream camera module, it comprises the first pcb board and the second pcb board, a camera lens, Double-number microphone, cmos image sensor, DSP microprocessor and connector, output interface that be arranged in parallel up and down, described camera lens, Double-number microphone, cmos image sensor are integrated in the first described pcb board, and described DSP microprocessor, connector, output interface are integrated in the second described pcb board.
Described cmos image sensor is high pixel image processing transducer, and it can reach more than 5 mega pixels on demand; Described Double-number microphone is symmetrically arranged MEMS miniature silicon Double-number microphone.
Described DSP microprocessor is encoded arrange after can export main bit stream and time code stream simultaneously.
An image pickup method for aforesaid VTM machine dual code stream camera module, it comprises the steps:
(1) by camera lens by convergence of rays on cmos image sensor, light signal is transformed into data image signal; Obtain audio signal by Double-number microphone simultaneously;
(2) by DSP microprocessor, the digital picture signal of telecommunication of acquisition and audio signal are carried out Digital Signal Processing, encode simultaneously, the image of acquisition and audio signal is made to export simultaneously with main bit stream high-resolution, these two kinds of code streams of secondary code stream low resolution, and output on VTM main frame by output interface USB2.0;
(3) according to the actual conditions of network broadband on VTM main frame, when broadband size can not be mated with code stream size, subcategory number stream resolution adjustment is carried out by DSP microprocessor after network broadband feedback, the final secondary code stream size exported can be matched with broadband size, thus be convenient to transmission and browse;
(4) the high-resolution high pixel image processing of main bit stream directly stores in this locality; The low pixel image of secondary code stream low resolution is then monitored for remote browse.
Described cmos image sensor is high pixel image processing transducer, for reaching the imageing sensor of 5 mega pixels or higher pixel, can use the transducer of higher pixel according to demand;
Described Double-number microphone is symmetrically arranged MEMS miniature silicon Double-number microphone, realize lossless audio to record, MEMS micro silicon microphone adopts bias voltage operation principle forever, without the need to storing charge, the humiture of surrounding enviroment can be tolerated, product sensitivity is stablized, and adopts Double-number microphone, perfect can realize the function such as elimination, echo cancellor, speech recognition of background noise.
Described DSP microprocessor for the treatment of audio frequency, Image Information Processing, encoded arrange after can export main bit stream and time code stream simultaneously.
Compared with prior art, tool has the following advantages in the present invention:
1, the present invention adopts the camera of 5M or higher pixel, by DSP processing image information, the two-way code stream synchronism output of different resolution can be compiled out, coordinate with network front end, high-resolution code stream is used as system this locality and stores, when carrying out displaying live view, the size can browsing the network bandwidth residing for picture and user according to user automatically adjusts, and meets displaying live view demand.
2, image pickup method of the present invention is by dual code stream camera module, can realize browsing and storing, instant video information interaction of efficient image information fast; Under existing network bottleneck, image quality and transmission quality can be taken into account, thus can network bottleneck have been broken through, meet the requirement of VTM machine safety monitoring, high-definition data collection real time human-machine interaction.
Above-mentioned is the general introduction of invention technical scheme, and below in conjunction with accompanying drawing and embodiment, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the overall schematic of camera module of the present invention;
Fig. 2 is the second pcb board schematic diagram of camera module of the present invention;
In figure: 1, the first pcb board; 2, the second pcb board; 3, microphone; 4, cmos image sensor; 5, DSP microprocessor; 6, camera lens; 7, connector; 8, output interface;
Fig. 3 is the flow chart of camera module image pickup method of the present invention.
Embodiment:
See Fig. 1-3, the VTM machine dual code stream camera module that the present embodiment provides, it comprises the first pcb board 1 and the second pcb board 2, camera lens 6, Double-number microphone 3, cmos image sensor 4, DSP microprocessor 5 and connector 7, the output interface 8 be arranged in parallel up and down, described camera lens 6, Double-number microphone 3, cmos image sensor 4 are integrated in the first described pcb board 1, and described DSP microprocessor 5, connector 7, output interface 8 are integrated in the second described pcb board 2; Described cmos image sensor 4 is high pixel image processing transducer, and it can reach more than 5 mega pixels on demand; Described Double-number microphone 3 is symmetrically arranged MEMS miniature silicon Double-number microphone; Described DSP microprocessor 5 is encoded arrange after can export main bit stream and time code stream simultaneously.
An image pickup method for aforesaid VTM machine dual code stream camera module, it comprises the steps:
(1) by camera lens by convergence of rays on cmos image sensor, light signal is transformed into data image signal; Obtain audio signal by Double-number microphone simultaneously;
(2) by DSP microprocessor, the digital picture signal of telecommunication of acquisition and audio signal are carried out Digital Signal Processing, encode simultaneously, the image of acquisition and audio signal is made to export simultaneously with main bit stream high-resolution, these two kinds of code streams of secondary code stream low resolution, and output on VTM main frame by output interface USB2.0;
(3) according to the actual conditions of network broadband on VTM main frame, when broadband size can not be mated with code stream size, subcategory number stream resolution adjustment is carried out by DSP microprocessor after network broadband feedback, the final secondary code stream size exported can be matched with broadband size, thus be convenient to transmission and browse;
(4) the high-resolution high pixel image processing of main bit stream directly stores in this locality; The low pixel image of secondary code stream low resolution is then monitored for remote browse.
Described cmos image sensor is high pixel image processing transducer, for reaching the imageing sensor of 5 mega pixels or higher pixel, can use the transducer of higher pixel according to demand;
Described Double-number microphone is symmetrically arranged MEMS miniature silicon Double-number microphone, realize lossless audio to record, MEMS micro silicon microphone adopts bias voltage operation principle forever, without the need to storing charge, the humiture of surrounding enviroment can be tolerated, product sensitivity is stablized, and adopts Double-number microphone, perfect can realize the function such as elimination, echo cancellor, speech recognition of background noise.
Described DSP microprocessor for the treatment of audio frequency, Image Information Processing, encoded arrange after can export main bit stream and time code stream simultaneously.
The present invention adopts the camera of 5M or higher pixel, by DSP processing image information, the two-way code stream synchronism output of different resolution can be compiled out, coordinate with network front end, high-resolution code stream is used as system this locality and stores, when carrying out displaying live view, the size can browsing the network bandwidth residing for picture and user according to user automatically adjusts, and meets displaying live view demand; Breach network bottleneck, image quality and transmission quality can have been taken into account, realize browsing and storing, instant video information interaction of efficient image information fast, the requirement of VTM machine safety monitoring, high-definition data collection real time human-machine interaction can be met.
The present invention is not limited to above-mentioned execution mode, adopts the structure identical or approximate with the above embodiment of the present invention and method, and other VTM machine dual code stream camera module and image pickup methods thereof of obtaining, all within scope.
Claims (5)
1. a VTM machine dual code stream camera module, it is characterized in that, comprise the first pcb board and the second pcb board, a camera lens, Double-number microphone, cmos image sensor, DSP microprocessor and connector, output interface that be arranged in parallel up and down, described camera lens, Double-number microphone, cmos image sensor are integrated in the first described pcb board, and described DSP microprocessor, connector, output interface are integrated in the second described pcb board.
2. VTM machine dual code stream camera module according to claim 1, it is characterized in that, described cmos image sensor is high pixel image processing transducer, and it can reach more than 5 mega pixels on demand; Described Double-number microphone is symmetrically arranged MEMS miniature silicon Double-number microphone.
3. VTM machine dual code stream camera module according to claim 1, is characterized in that, described DSP microprocessor is encoded arrange after can export main bit stream and time code stream simultaneously.
4. an image pickup method for the VTM machine dual code stream camera module adopting one of claim 1-3 described, is characterized in that, comprise the steps:
(1) by camera lens by convergence of rays on cmos image sensor, light signal is transformed into data image signal; Obtain audio signal by Double-number microphone simultaneously;
(2) by DSP microprocessor, the digital picture signal of telecommunication of acquisition and audio signal are carried out Digital Signal Processing, encode simultaneously, utilize dual code stream technology, the image of acquisition and audio signal is made to export simultaneously with main bit stream high-resolution, secondary code stream low resolution two kinds of code streams, and output on VTM main frame by output interface USB2.0;
(3) according to the actual conditions of network broadband on VTM main frame, when broadband size can not be mated with code stream size, subcategory number stream resolution adjustment is carried out by DSP microprocessor after network broadband feedback, the final secondary code stream size exported can be matched with broadband size, thus be convenient to transmission and browse;
(4) the high-resolution high pixel image processing of main bit stream directly stores in this locality; The low pixel image of secondary code stream low resolution is then monitored for remote browse.
5. the image pickup method of VTM machine according to claim 4 infrared triggering shooting camera module, it is characterized in that, described cmos image sensor is high pixel image processing transducer, and it can reach more than 5 mega pixels on demand; Described Double-number microphone is symmetrically arranged MEMS miniature silicon Double-number microphone; Described DSP microprocessor is encoded arrange after can export main bit stream and time code stream simultaneously.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106534857A (en) * | 2016-11-02 | 2017-03-22 | 深圳市维海德技术股份有限公司 | Code stream transmission method and camera based on USB |
| WO2019041227A1 (en) * | 2017-08-31 | 2019-03-07 | 深圳市锐明技术股份有限公司 | Onboard vehicle safety monitoring method, system, and terminal device |
| CN110248146A (en) * | 2019-07-25 | 2019-09-17 | 上海赛连信息科技有限公司 | A kind of external camera device and its application method and system |
| CN111246115A (en) * | 2020-02-20 | 2020-06-05 | 深圳市昊一源科技有限公司 | Wireless transmission system and transmission control device |
| WO2022217555A1 (en) * | 2021-04-15 | 2022-10-20 | 深圳市大疆创新科技有限公司 | Image transmission method for unmanned aerial vehicle, and unmanned aerial vehicle and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106534857A (en) * | 2016-11-02 | 2017-03-22 | 深圳市维海德技术股份有限公司 | Code stream transmission method and camera based on USB |
| WO2019041227A1 (en) * | 2017-08-31 | 2019-03-07 | 深圳市锐明技术股份有限公司 | Onboard vehicle safety monitoring method, system, and terminal device |
| CN110248146A (en) * | 2019-07-25 | 2019-09-17 | 上海赛连信息科技有限公司 | A kind of external camera device and its application method and system |
| CN111246115A (en) * | 2020-02-20 | 2020-06-05 | 深圳市昊一源科技有限公司 | Wireless transmission system and transmission control device |
| WO2022217555A1 (en) * | 2021-04-15 | 2022-10-20 | 深圳市大疆创新科技有限公司 | Image transmission method for unmanned aerial vehicle, and unmanned aerial vehicle and computer-readable storage medium |
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Application publication date: 20150415 |