CN104219493B - Close bat packet mode radio image collecting and Transmission system - Google Patents
Close bat packet mode radio image collecting and Transmission system Download PDFInfo
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- CN104219493B CN104219493B CN201310568043.5A CN201310568043A CN104219493B CN 104219493 B CN104219493 B CN 104219493B CN 201310568043 A CN201310568043 A CN 201310568043A CN 104219493 B CN104219493 B CN 104219493B
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Abstract
The close bat packet mode radio image collecting and Transmission system that the present invention is provided include collection transmitting terminal and the receiving terminal with the collection transmitting terminal wireless connection；The collection transmitting terminal is used to image is acquired and launched, and it includes：Satchel, the emitter being installed in the satchel, multiple cameras on the satchel and the remote controller with the emitter wireless connection, the multiple camera is used to carry out image taking with orientation from different perspectives and sends the view data photographed to the emitter, and the view data that the remote controller is used to control emitter to select a wherein camera to shoot is launched；The receiving terminal is a receiver, and the receiver is used for the view data that collection transmitting terminal described in wireless receiving is sent.Above-mentioned close bat packet mode radio image collecting and Transmission system can gather view data from multiple angles and orientation, and control selections view data therein is launched to receiving terminal.
Description
Technical field
The present invention relates to the close bat packet mode radio image collecting of one kind and Transmission system.
Background technology
With the development of science and technology Wireless Image Transmission Systems have been obtained for extensive use.In actual applications, public security punishment
Detect, security, public security, anti-terrorism, the field such as interview, it is often necessary to investigate and collect evidence or it is secret visit, and will wherein arrive will investigation and evidence collection
Or the live video payed a secret visit spreads out of, receiving terminal can make timely reception processing, this be accomplished by HD video, audio it is wireless
Transmission system, and need disguised well.Existing wireless transmitting and receiving device laser propagation effect is also undesirable, shoots orientation
Bad adjustment, the video effect spread out of is also undesirable.
The content of the invention
, can be with the present invention solves the technical problem of providing a kind of close bat packet mode radio image collecting and Transmission system
View data is acquired from multiple angles and orientation and is selected to the view data of shooting to be transmitted.
In order to solve the above technical problems, one aspect of the present invention is：A kind of close bat packet mode is provided without line chart
As collection and Transmission system, including：Gather transmitting terminal and the receiving terminal with the collection transmitting terminal wireless connection；The collection hair
Penetrating end is used to image is acquired and launched, and it includes：Satchel, the emitter being installed in the satchel, carry on the arm located at described
The multiple cameras wrapped and the remote controller with the emitter wireless connection, the multiple camera are used for from different perspectives
Image taking is carried out with orientation and sends the view data photographed to the emitter, and the remote controller is used to control to launch
The view data that a machine selection wherein camera is shot is launched；The receiving terminal is a receiver, and the receiver is used for
The view data that transmitting terminal is sent is gathered described in wireless receiving.
Wherein, the emitter includes：Remote controller reception antenna：Switch-over control signal for receiving remote controller transmission；
433MHz receiving modules, it is connected with remote controller reception antenna, for the control signal received to be converted into Transistor-Transistor Logic level signal
After send；First microprocessor, it is connected with 433MHz receiving modules, for receiving the Transistor-Transistor Logic level letter that the 433MHz is sent
Number, and switching signal is sent according to Transistor-Transistor Logic level signal；Image handover module, itself and the first microprocessor and multiple shootings
Head connection, for receiving the view data of multiple cameras transmissions and receiving the switching signal that first microprocessor is sent, and
The multiple images data received are switched over according to switching signal, and the view data after switching is exported；Image
Acquisition module, it is connected with described image handover module, the view data for described image handover module to be exported carry out mould/
Number is changed and is transmitted；Coding module/modulation module, it is connected with image capture module, for the picture number to receiving
According to being encoded and being modulated, described image data are modulated into radiofrequency signal；Up-converter module, for by it is encoded and adjust
The transmission frequency of the radiofrequency signal of view data after system is mixed, by transmission frequency be transformed to higher suitable transmitting or
The frequency signal of transmission；Power amplifier module, it is connected with up-converter module, and the frequency signal for being sent to up-converter module is carried out
Sent after amplification by an image transmission antenna to receiving terminal.
Wherein, the emitter also include the control module that is connected with the up-converter module and with the control module
The control instruction input module of connection, the control module is used to receive the control instruction that the control instruction input module is sent
It is controlled with the frequency to the up-converter module and output attenuatoin.
Wherein, the transmitting terminal also includes：Recording apparatus and/or camera device；The recording apparatus and the emitter
The connection of image handover module, for receiving the view data after switching of described image handover module transmission to be recorded
System；The camera device is connected with the image handover module of institute's emitter, for the view data of production to be sent to the figure
Optionally exported after being switched over as handover module for described image handover module.
Wherein, the coding module includes：Intelligent image analyzes submodule, for the view data received to be divided
Analysis, to identify significance map as picture data and secondary image frame data, respectively by important picture data and secondary frame numbers
According to transmission to important picture coding submodule and secondary picture coding submodule；Important picture coding submodule, for receiving
To important picture encoded；Secondary picture coding submodule, for being encoded to the secondary picture received；First net
Network extracting sub-module, it is mono- to encapsulate or be mapped as NAL for the important picture data after coding to be packaged or mapped
Member；Second network extraction submodule, for the secondary picture data after coding to be packaged or mapped, to encapsulate or map
For NAL unit；First code stream cache sub-module, for passing through first network extracting sub-module and the second network extraction submodule
NAL unit after encapsulation is compressed, duplicate removal, separation, shunting, to form the picture data of new low code stream, and will be new low
The picture data of code stream, which is sent to modulation module, to be modulated.
Wherein, the receiver includes：Image-receptive antenna, the view data sent for emitter described in wireless receiving
Radiofrequency signal；Wave filter, it is connected with described image reception antenna, miscellaneous for carrying out filtering to the radiofrequency signal received
Ripple；Low noise amplifier, it is connected with wave filter, for carrying out signal amplification to the radiofrequency signal after filtering；Down conversion module,
It is connected with low noise amplifier, for the radiofrequency signal after low noise amplifier amplifies to be downconverted into intermediate-freuqncy signal；
Demodulation module, it is connected with down conversion module, for being demodulated to the radiofrequency signal after down coversion；Decoder module, itself and solution
Mode transfer block is connected, and for being decoded to the view data after demodulation, decoded data are defeated by sound output channel, SD
Go out passage and the output of high definition output channel.
Wherein, the receiver also includes the second microprocessor and the display mould being connected with second microprocessor
Block, second microprocessor is connected with the down conversion module, demodulation module and decoder module, for obtaining the lower change
The parameter of frequency module, demodulation module and decoder module, and the parameter is sent to display module shown.
Wherein, the receiver also includes memory modules and the memory module being connected with the decoder module.
Wherein, the decoder module includes：Second code stream cache sub-module, for the image to the low code stream after demodulation
Data are decompressed, aggravate to reduce the important picture data and secondary picture data of described image data；3rd network is carried
Submodule is taken, for obtaining and mending again the view data after the second code stream cache sub-module is decompressed, aggravated, by NAL
Unit sequence is extracted from the second code stream cache sub-module and multiple mend comes out；RBSP data format conversion modules, for that will obtain
RBSP data formats are converted to the NAL unit sequence after multiple benefit；Burst decoding sub-module, for by the important picture of RBSP forms
Face data and secondary picture data carry out burst and decoding, to merge the view data for restoring high code stream.
The beneficial effects of the invention are as follows：It is different from the situation of prior art, close bat packet mode radio image collecting of the invention
With Transmission system due to transmitting terminal is set into satchel formula, multi-faceted and angle multiple cameras are set on satchel so that
User can get the video data of shooting with orientation from different perspectives, and the camera of different azimuth is selected further according to remote controller
The view data of output is transmitted, and view data is sent to receiver；The embodiment of the present invention on the other hand, is being encoded
In decoding, a kind of brand-new coding that high rate conversion is transmitted into low bit- rate and source image data is not damaged is employed
And decoding process, during make it that emitter is transmitted again, the data of more multi code Rate of Chinese character can be transmitted in same transmission time；
The another aspect of the embodiment of the present invention, video recorder and video camera are set up in transmitting terminal, can cause user can be right in transmitting terminal
The view data of shooting is recorded and can be sent the image that video camera is shot to emitter, make it that emitter can be with
The view data that video camera is shot is sent to receiver.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1, which is that the present invention is close, claps packet mode radio image collecting and the block diagram of the embodiment of Transmission system one；
Fig. 2 a, 2b, 2c are the close knots for clapping transmitting terminal in packet mode radio image collecting and the embodiment of Transmission system one of the present invention
Structure schematic diagram figure；
Fig. 3 is the close block diagram for clapping emitter in packet mode radio image collecting and the embodiment of Transmission system one of the present invention；
Fig. 4 is the close block diagram for clapping coding module in packet mode radio image collecting and the embodiment of Transmission system one of the present invention；
Fig. 5 is the close block diagram for clapping receiver in packet mode radio image collecting and the embodiment of Transmission system one of the present invention；
Fig. 6 is the close block diagram for clapping decoder module in packet mode radio image collecting and the embodiment of Transmission system one of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the close bat packet mode radio image collecting of the present invention and Transmission system include collection transmitting terminal and with
The receiving terminal 20 of the collection wireless connection of transmitting terminal 10；The collection transmitting terminal 10 is used to image is acquired and launched,
It includes：Satchel 101, the emitter 102 being installed in the satchel 101, multiple cameras on the satchel 101
103 and the remote controller 104 with the wireless connection of emitter 102, the multiple camera 103 is used for from different perspectives and side
Position carries out image taking and sends the view data photographed to the emitter 102, and the remote controller 104 is used to control to send out
Penetrating machine 102 selects the view data of a wherein camera 103 shooting to be launched；The receiving terminal 20 is a receiver 201, institute
Stating receiver 201 is used for the view data that collection transmitting terminal 10 described in wireless receiving is sent.
Gather transmitting terminal 10：
The satchel 101 includes：The shoulder belt 1012 of satchel body 1011 and connection satchel body 1011, shoulder belt 1012
Two ends connect the both sides of the satchel body 1011.The emitter 102 is installed in the satchel body 1011, the multiple
Camera 103 is at the diverse location on the shoulder belt 1012.In the present embodiment, the camera 103 is 4 miniature pin holes
Camera 103, first and second camera 1031,1032 is symmetrically set on shoulder belt 1012 close to the position of satchel body 1011
Place, the 3rd and the 4th camera 1033,1034 is symmetrically set on shoulder belt 1012 at the position away from the satchel body 1011.Should
Work as understanding, in various embodiments, the number and set location of the camera 103 can also have other conversion, example
Such as it can be arranged at the diverse location on satchel body 1011.
The emitter 102 includes：
Remote controller reception antenna 1021：Switch-over control signal for receiving the transmission of remote controller 104, the switching control letter
Number it is specially that to control the emitter 102 to select the view data that a certain camera is shot in multiple cameras 103 to carry out follow-up
Processing；
433MHz receiving modules 1022, it is connected with remote controller reception antenna 1021, for by the control signal received
Be converted to and sent after Transistor-Transistor Logic level signal；
First microprocessor 1023, it is connected with 433MHz receiving modules 1022, is sent for receiving the 433MHz
Transistor-Transistor Logic level signal, and switching signal is sent according to Transistor-Transistor Logic level signal；
Image handover module 1024, it is connected with the first microprocessor 1023 and multiple cameras 103, for receiving
View data and receive the switching signal that first microprocessor 1023 is sent that multiple cameras 103 are sent, and according to switching
Signal switches over the multiple images data received, and the view data after switching is exported；
Image capture module 1025, it is connected with described image handover module 1024, for by described image handover module
The view data of 1024 outputs carries out analog/digital conversion and is transmitted；
Coded/modulated module 1026, it is connected with image capture module 1025, for being carried out to the view data received
Described image data are modulated into radiofrequency signal, the modulation module uses COFDM by coding and modulation
（Codedorthogonalfrequencydivisionmultiplexing, COFDM）Modulation technique, QPSK
Modulation system, it is diffractive good, adapt to the transmission in the case of speed governing campaign；
Up-converter module 1027, for the transmission frequency of the radiofrequency signal of the view data after encoded and modulation to be entered
Row mixing, transmission frequency is transformed to the frequency signal of higher suitable transmitting or transmission；Wherein, the up-converter module
36MHz intermediate frequency is changed into 300MHz~800MHz high-frequency signals by 1027.
Power amplifier module 1028, it is connected with up-converter module 1027, for the frequency letter sent to up-converter module 1027
Sent after number being amplified by an image transmission antenna to receiving terminal 20, the receiving terminal 20 is handled after receiving.
In the present embodiment, the emitter 102 also includes：Control instruction input module（It is not shown）And control module
1030, the control instruction input module is connected by control module 1030 with the up-converter module 1027, and the control refers to
Input module is made to be used to receive the control instruction of user and send the instruction to control module 1030, the control instruction includes
The control of frequency and output attenuatoin to up-converter module 1027, the control module 1030 is used to receive the control instruction
The control instruction that module is sent, is carried out corresponding according to control instruction to the frequency of the up-converter module 1027 and output attenuatoin
Control.
The emitter 102 also include a recording apparatus 1029 and/or camera device 1020, the recording apparatus 1029 with
Described image handover module 1024 is connected, the picture number after switching for receiving the transmission of described image handover module 1024
Recorded according to this；The camera device 1020 is connected with described image handover module 1024, for by the view data of production
Send to described image handover module 1024 and carry out selecting after follow-up switching after receiving for described image handover module 1024
Export to property.The camera device 1020 includes video camera and the electronic equipment with camera function.It should be appreciated that in difference
Embodiment in, the recording apparatus 1029, camera device 1020, control module 1030 etc. can also be according to different embodiments
Carry out proper transformation or delete.
Further, Fig. 4 is referred to, Fig. 4 is the close bat packet mode radio image collecting of the present invention and the embodiment of Transmission system one
The block diagram of middle coding module.The coding module 1026 includes：
Intelligent image analyzes submodule 10261, for the view data received to be analyzed, to identify significance map
As picture and secondary image frame, important picture data and secondary picture data are sent to important picture coding submodule respectively
With secondary picture coding submodule；
The image/video characteristics of pictures of emergency communication industry is：30% picture is dynamic picture（That is people/thing motion）, its
He 70% is essentially all secondary picture (background, building, sky, ground etc.), and in 30% dynamic picture, may be only had
20% motion picture be we (in region of interest) of interest, the concern that other 80% people/thing motion has no effect on us is (emerging
Outside interesting area).Important picture is identified using intelligent image analysis submodule 10261, is distinguished by with secondary picture, respectively
Coding.
Important picture coding submodule 10262, for carrying out coding compression to the important picture received；
Secondary picture coding submodule 10263, for carrying out coding compression to the secondary picture received；
First network extracting sub-module 10264, will for the important picture data after coding to be packaged or mapped
Important picture encapsulation is mapped as NAL (NetworkAbstractionLayer, network abstraction layer) unit；Specifically, it is described heavy
Want after picture coding submodule 10262 encoded important picture data, that is, to be mapped or be encapsulated as NAL unit, one
The encoded video sequence of the NAL unit composition of series is not exported directly, it is necessary to be introduced into the first code stream cache sub-module
10266；
Second network extraction submodule 10265, will for the secondary picture data after coding to be packaged or mapped
Secondary picture data encapsulation is mapped as NAL unit；Specifically, the secondary picture coding submodule 10263 is by secondary picture
After data are encoded, that is, it is mapped or is encapsulated as NAL unit, the encoded video sequence of a series of NAL unit composition
Do not exported directly, it is necessary to be introduced into the first code stream cache sub-module 10266；
First code stream cache sub-module 10266, for by first network extracting sub-module and the second network extraction
Module encapsulate or mapping after NAL unit be compressed, duplicate removal, separation, shunting, to form the picture data of new low code stream,
And the picture data of new low code stream is sent to modulation module be modulated.
This coding module 1026 can be distinguished the difference of every width image and only be transmitted shadow using the inter-frame compression techniques of optimization
The part changed as in, then the decomposed changed in image is transmitted into several one width of picture fixed, both
Significantly compressed data image effect can be can guarantee that again.In coding module, view data is subjected to coding boil down to picture number
According to sequence, it is encoded the view data mapping after compression or encapsulates to NAL unit, a series of NAL unit constitutes encoded video
Sequence is not exported directly, and is into code stream cache layer, is re-compressed in code stream cache layer NAL unit, is eliminated repetition
NAL headers and the NAL filling data believed, and be separated by new rule, shunt, it is defeated in " trickle " mode afterwards
Go out, extremely low compressed bit stream thus can be obtained on the premise of image does not lose.According to actual test, compiled using which
The code stream exported after code is only 10% or so of source code stream.Contrast before and after compression of images is shown in Table 1：
Table 1
Receiving terminal 20：
Fig. 5 is referred to, Fig. 5 is receiver in the close bat packet mode radio image collecting of the present invention and the embodiment of Transmission system one
201 block diagram.The receiver 201 includes：
Image-receptive antenna 2011, the radiofrequency signal of the view data sent for emitter described in wireless receiving 102；
Wave filter 2012, it is connected with described image reception antenna 2011, for being carried out to the radiofrequency signal received
Filter clutter；
Low noise amplifier 2013, it is connected with wave filter 2012, is put for carrying out signal to the radiofrequency signal after filtering
Greatly；
Down conversion module 2014, it is connected with low noise amplifier 2013, for that will be put by low noise amplifier 2013
Radiofrequency signal after big downconverts to intermediate-freuqncy signal；Radiofrequency signal is down-converted in 36MHz from 300MHz~800MHz
Frequency signal.
Demodulation module 2015, it is connected with down conversion module 2014, for being solved to the radiofrequency signal after down coversion frequency
Adjust, the demodulation module 2015 is COFDM demodulation modules 2015；
Decoder module 2016, it is connected with demodulation module 2015, for being decoded and being incited somebody to action to the radiofrequency signal after demodulation
Decoded data signal is converted to analog signal, and decoded image analoging signal is exported by sound output channel, SD
Passage and the output of high definition output channel.
Further, the receiver 201 also include the second microprocessor 2017 and with second microprocessor
The display module 2018 of 2017 connections, second microprocessor 2017 and the down conversion module 2014, demodulation module 2015
And decoder module 2016 is connected, for obtaining the down conversion module 2014, demodulation module 2015 and decoder module 2016
Parameter, and the parameter sent to display module 2018 shown.
Further, the receiver 201 also includes the memory modules 2019 and memory being connected with the decoding deck
2020, cache and store for providing decoded data.
Further, Fig. 6 is referred to, the decoder module 2016 includes：
Second code stream cache sub-module 20161, is decompressed for the view data to the low code stream after demodulation, is added
Heavy important picture data and secondary picture data to reduce described image data；The exacerbation refers to increase in an encoding process
Deleted or duplicate removal NAL unit header and the NAL filling data believed, that is, increase the NAL unit of repetition；
3rd network extraction submodule 20162, is decompressed for obtaining and mending again by the second code stream cache sub-module 20161
View data after contracting, exacerbation, NAL unit sequence is extracted and multiple benefit from the second code stream cache sub-module 20161
Out, the multiple benefit refers to each NAL unit is replicated and supplemented；
RBSP data format conversion modules 20164, for the NAL unit sequence after obtaining and mending again to be converted into RBSP numbers
According to form；
Burst decoding sub-module 20163, for by the important picture data of RBSP forms and secondary picture data burst solution
Code, the decoded picture data of burst is rebuild to be reduced to the view data of high code stream, i.e., by RBSP Data Format Transform moulds
Data after block 20164 is changed are classified and decoded, by important picture data of the data decomposition-reduction after changing and secondary
Picture data is wanted, and the data after decomposition-reduction are decoded.
This decoder module 2016, is decompressed and is aggravated in code stream cache layer, and time that timing updates is stored in memory block
Picture data and default contextual data are wanted, intelligent image analytical technology is multiplexed during decoding and merges important picture and secondary picture,
Rebuild simultaneously, you can decode high definition image scene true to nature in the case where low code stream is inputted；It is multiple using brand-new NAL unit
Benefit technology, i.e., after buffer area gets NAL unit, according to data coherency and logical interdependency, replicate to NAL unit
And supplement, to obtain more rich NAL unit, thus reconstruct with source image data more, the more rich high definition figure of picture level
As data.
The embodiment of the present invention, satchel formula is set to by transmitting terminal, and multi-faceted and angle multiple shootings are set on satchel
Head so that user can get the video data of shooting with orientation from different perspectives, different azimuth is selected further according to remote controller
Camera output view data be transmitted, view data is sent to receiver；Another side of the embodiment of the present invention
Face, in coding and decoding, employs and a kind of brand-new high rate conversion is transmitted into low bit- rate and source images are not damaged
The coding and decoding mode of data, during make it that emitter is transmitted again, can be transmitted more in same transmission time
The data of code check；The another aspect of the embodiment of the present invention, video recorder and video camera are set up in transmitting terminal, and user can be caused in hair
Penetrating end can be recorded to the view data of shooting and can be sent the image that video camera is shot to emitter, to cause
Emitter can send the view data that video camera is shot to receiver.
Embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize the present invention
Equivalent structure or equivalent flow conversion that specification and accompanying drawing content are made, or directly or indirectly it is used in other related technologies
Field, is included within the scope of the present invention.
Claims (7)
1. a kind of close bat packet mode radio image collecting and Transmission system, including：
Gather transmitting terminal and the receiving terminal with the collection transmitting terminal wireless connection；
The collection transmitting terminal is used to image is acquired and launched, and it includes：Satchel, the transmitting being installed in the satchel
Machine, multiple cameras on the satchel and the remote controller with the emitter wireless connection, the multiple camera
It is described to shake control for carrying out image taking with orientation from different perspectives and sending the view data photographed to the emitter
The view data that device is used to control emitter to select a wherein camera to shoot is launched；
The receiving terminal is a receiver, and the receiver is used for the view data that collection transmitting terminal described in wireless receiving is sent；
The emitter includes：
Remote controller reception antenna：Switch-over control signal for receiving remote controller transmission；
433MHz receiving modules, it is connected with remote controller reception antenna, for the control signal received to be converted into Transistor-Transistor Logic level
Sent after signal；
First microprocessor, it is connected with 433MHz receiving modules, for receiving the Transistor-Transistor Logic level signal that the 433MHz is sent,
And switching signal is sent according to Transistor-Transistor Logic level signal；
Image handover module, it is connected with the first microprocessor and multiple cameras, is sent for receiving multiple cameras
View data and receive the switching signal that first microprocessor is sent, and according to switching signal by the multiple images received
Data are switched over, and the view data after switching is exported；
Image capture module, it is connected with described image handover module, for the picture number for exporting described image handover module
According to analog/digital conversion and be transmitted；
Coding module/modulation module, it is connected with image capture module, for the view data received to be encoded and adjusted
Described image data are modulated into radiofrequency signal by system；
Up-converter module, for the transmission frequency of the radiofrequency signal of the view data after encoded and modulation to be mixed,
So that transmission frequency to be transformed to the frequency signal of higher suitable transmitting or transmission；
Power amplifier module, it is connected with up-converter module, for passing through after being amplified to the frequency signal that up-converter module is sent
One image transmission antenna is sent to receiving terminal；
The coding module distinguishes the part changed in the difference of every width image and only transmission image, then change in image
Decomposed transmitted into several one width of picture fixed, the coding module includes：
Intelligent image analyzes submodule, for the view data received to be analyzed, to identify significance map as frame numbers
According to secondary image frame data, important picture data and secondary picture data are sent to important picture coding submodule respectively
With secondary picture coding submodule；
Important picture coding submodule, for being encoded to the important picture received；
Secondary picture coding submodule, for being encoded to the secondary picture received；
First network extracting sub-module, for the important picture data after coding to be packaged or mapped, to encapsulate or reflect
Penetrate as NAL unit；
Second network extraction submodule, for the secondary picture data after coding to be packaged or mapped, to encapsulate or reflect
Penetrate as NAL unit；
First code stream cache sub-module, for after first network extracting sub-module and the encapsulation of the second network extraction submodule
NAL unit be compressed, duplicate removal, separation, shunting, to form the picture data of new low code stream, and by new low code stream
Picture data sends to modulation module and is modulated.
2. close bat packet mode radio image collecting as claimed in claim 1 and Transmission system, it is characterised in that：The emitter is also
Including the control module being connected with the up-converter module and the control instruction input module being connected with the control module, institute
Stating control module is used for the control instruction for receiving the control instruction input module transmission with the frequency to the up-converter module
And output attenuatoin is controlled.
3. close bat packet mode radio image collecting as claimed in claim 1 and Transmission system, it is characterised in that the transmitting terminal is also
Including：Recording apparatus and/or camera device；
The recording apparatus is connected with the image handover module of the emitter, for receiving the transmission of described image handover module
View data after switching is to be recorded；
The image handover module connection of the camera device and emitter, for the view data of production to be sent to described image
Handover module is optionally exported after being switched over for described image handover module.
4. close bat packet mode radio image collecting and Transmission system as described in any one of claims 1 to 3 claim, it is special
Levy and be, the receiver includes：
Image-receptive antenna, the radiofrequency signal of the view data sent for emitter described in wireless receiving；
Wave filter, it is connected with described image reception antenna, for carrying out filtering clutter to the radiofrequency signal received；
Low noise amplifier, it is connected with wave filter, for carrying out signal amplification to the radiofrequency signal after filtering；
Down conversion module, it is connected with low noise amplifier, for by under the radiofrequency signal after low noise amplifier amplifies
It is converted to intermediate-freuqncy signal；
Demodulation module, it is connected with down conversion module, for being demodulated to the radiofrequency signal after down coversion；
Decoder module, it is connected with demodulation module, and for being decoded to the view data after demodulation, decoded data pass through
Sound output channel, SD output channel and the output of high definition output channel.
5. close bat packet mode radio image collecting as claimed in claim 4 and Transmission system, it is characterised in that：The receiver is also
The display module being connected including the second microprocessor and with second microprocessor, second microprocessor with it is described under
Frequency-variable module, demodulation module and decoder module connection, for obtaining the down conversion module, demodulation module and decoder module
Parameter, and the parameter sent to display module shown.
6. close bat packet mode radio image collecting as claimed in claim 5 and Transmission system, it is characterised in that the receiver is also
Including the memory modules being connected with the decoder module and memory module.
7. close bat packet mode radio image collecting as claimed in claim 4 and Transmission system, it is characterised in that the decoder module
Including：
Second code stream cache sub-module, is decompressed for the view data to the low code stream after demodulation, aggravates to reduce
The important picture data and secondary picture data of described image data；
3rd network extraction submodule, for obtaining and mending again the figure after the second code stream cache sub-module is decompressed, aggravated
As data, NAL unit sequence is extracted from the second code stream cache sub-module and multiple mend comes out；
RBSP data format conversion modules, for the NAL unit sequence after obtaining and mending again to be converted into RBSP data formats；
Burst decoding sub-module, for the important picture data of RBSP forms and secondary picture data to be carried out into burst and decoding,
To merge the view data for restoring high code stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568043.5A CN104219493B (en) | 2013-11-14 | 2013-11-14 | Close bat packet mode radio image collecting and Transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568043.5A CN104219493B (en) | 2013-11-14 | 2013-11-14 | Close bat packet mode radio image collecting and Transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104219493A CN104219493A (en) | 2014-12-17 |
| CN104219493B true CN104219493B (en) | 2017-10-20 |
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