CN106231236A - The network vehicle-mounted conference system of 4G - Google Patents
The network vehicle-mounted conference system of 4G Download PDFInfo
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- CN106231236A CN106231236A CN201610847695.6A CN201610847695A CN106231236A CN 106231236 A CN106231236 A CN 106231236A CN 201610847695 A CN201610847695 A CN 201610847695A CN 106231236 A CN106231236 A CN 106231236A
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- 238000004891 communication Methods 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 210000003128 head Anatomy 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000001755 vocal effect Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000001815 facial effect Effects 0.000 claims description 3
- 210000001525 retina Anatomy 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 1
- 230000006855 networking Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010295 mobile communication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000000554 iris Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/155—Conference systems involving storage of or access to video conference sessions
Abstract
The open a kind of network vehicle-mounted conference system of 4G of the present invention, mainly includes the assemblies such as image capture module, pickup module, vehicle-mounted CPU, image compression module, voice playing module, display module, 4G network communication module, memory module, biological characteristic recognition module, server.The advantage that the present invention has safety, intelligent, accuracy is high, can actively pass through 4G network by the audio, video data collected and upload in real time to server, meet the demand that commercial car is held a meeting in real time, have broad application prospects at car networking arenas.
Description
Technical field
The present invention relates to a kind of vehicle-mounted conference system, particularly relate to the car of a kind of realized Multi-Party Conference based on 4G network
Loading system, belongs to car networking arenas.
Background technology
Along with economic develops rapidly and social progress, link up efficiency for improving, grasp first-hand information material, it is achieved certainly
Plan person and front man carry out real-time communication, tele-conferencing system in various types of industries and enterprises by extensively
Use.Tele-conferencing system is will to be in individual or the team of diverse geographic location, realizes image, sound, literary composition by the Internet
The quick transmission of part, prior art is generally teleconference, i.e. realizes voice and transmits and intercommunication while video.
For the vehicle such as commercial vehicle, police car, sometimes under emergency case, garage needs site tissue in many ways to carry out meeting in entering
View.The fast development of development of Mobile Internet technology in recent years, makes existing car-mounted terminal in the merit of the aspects such as amusement, navigation, safety
Can have been sound, but not a kind of tele-conferencing system being specifically designed to the vehicle such as commercial vehicle, police car in prior art.Remotely
Conference system have arrangement rapidly, without advantages such as time region restriction, low cost, but mounted remote conference system exists many
Defect: 1, the factor such as impact run due to space-closed, vehicle vibration, vehicle mechanical equipment at vehicle interior, causes pickup
Equipment can not reach good pickup and result of broadcast, causes the phenomenons such as echo, noise, reverberation.Remote participant can be heard
The content of participant's speech, causes confusing communication.2, owing to shooting picture is for all participants, when a certain particular speaker is sent out
Yan Shi, remote participant can not find spokesman immediately, and this makes troubles to remote participant.3, to accomplish due to teleconference
Transmitting and intercommunication while video and audio frequency, the public 2G/3G wireless network transmissions that prior art uses is limited to channel width
Impact, data uploading rate is low, it is impossible to accomplish the smooth playing of audio frequency and video.4, prior art is it cannot be guaranteed that the secrecy of conference content
Property, personnel participating in the meeting can only manually be screened, if management is all unfamiliar with personnel participating in the meeting, be then easy to occur that conference content is revealed
Risk.
Chinese patent CN201491074U discloses a kind of on-board telephone system, including image acquiring device, display device,
Signal receiving and transmitting system.It uses G mobile communication, outside realizing voice call, moreover it is possible to provide image, video etc.
Information, can holding video conference.But it is relatively slow that G mobile communication (3G) uploads data speed, video conference other end
Image and acoustic information can not be received in time, often result in the phenomenons such as video pictures delay, interruption.
Chinese patent CN 202424704U discloses a kind of vehicle-mounted station for mobile communication information platform system for power grid,
Communication station is formed with video, wide area network, programme-controlled exchange by vehicle-mounted satellite antenna system, satellite main website, network route, E1 route
The telecommunication link of point, it is possible to the various information such as remote transmission video, data, voice.But this patent depends on satellite
Communication, relatively costly, it is unsuitable in terms of civil area common business applying.
Summary of the invention
For overcoming the defect of prior art, the purpose of first aspect present invention is to provide a kind of 4G network vehicle-mounted meeting system
System.Based on 4G network, its processor is polycaryon processor based on ARM CordecA9, has powerful operational capability, it is achieved
Real time imaging, encoding and decoding speech, upload onto the server the real time imaging in vehicle, video and voice, then by network with different
Ground conference system carries out video, speech exchange.
The network vehicle-mounted conference system of described 4G include image capture module, pickup module, vehicle-mounted CPU, image compression module,
Voice playing module, display module, 4G network communication module, memory module, biological characteristic recognition module, server.
Described image capture module includes photographic head and photographic head controller.Described photographic head is electrically connected with photographic head controller
Connect.
Described pickup module includes pick up and audio coder.Front, each seat in commercial vehicle/radio car sets
It is equipped with pickup module, facilitates the personnel on seat to make a speech.
Described vehicle-mounted CPU is I.MX6 4 core processor based on ARM framework, the 4 of specially I.MX6 ARM CordecA9
Core processor.
Described image capture module, pickup module, voice playing module and vehicle-mounted CPU are by short-distance wireless communication passage
Connect.Further, described short-distance wireless communication passage connected mode is in bluetooth, Wi-Fi, Zigbee, Z-wave
The combination of one or more.Preferably bluetooth combines with Z-wave agreement.
The MP4 formatted file that image compression is become resolution to be 600 × 480 by described image compression module.
Described voice playing module includes decoder and power amplifier unit.
Described display module is LCD car-mounted terminal display unit, described display module in the way of wired connection with vehicle-mounted
CPU electrically connects.Further, described wired connection mode is coaxial cable, USB (universal serial bus) or USB transmission line.
The capacity of described memory module is more than 64G.
The biological characteristic of described biological characteristic recognition module includes in fingerprint, iris, retina, facial characteristics, vocal print
One or more combinations.
Described server is connected with described vehicle-mounted CPU communication by 4G communication module, described server also with strange land meeting
System connects.
The purpose of second aspect present invention is to provide the method for the network vehicle-mounted conference system of a kind of 4G.
When described vehicle-mounted conference system access server terminal, when setting up teleconference, vehicle-mounted conference system is reminded and is attended the meeting
Personnel register, and described vehicle-mounted conference system carries out living things feature recognition by described biological characteristic recognition module to persons attending the meeting,
Allow to participate in meeting, as the personnel occurring that living things feature recognition is not all inconsistent with background data base by the personnel of living things feature recognition
Time, system then can send warning, and during meeting is carried out, system can carry out contactless biometric identification at random, and
Time screen be not invited to people with a part in a conference person.
The network vehicle-mounted conference system of described 4G gathers video and audio frequency from image capture module and pickup module, generates live
Stream, and end that described live TV stream is uploaded onto the server.
Detailed process is as follows:
Vehicle-mounted CPU controls image capture module and gathers video, by video backup and be stored in described memory module；With
Time, vehicle-mounted CPU controls the pick up of described pickup module and gathers voice data, the encoder of described pickup module compiles
Code, backs up the audio file after coding and is stored in described memory module.Vehicle-mounted CPU mono-aspect controls voice data and regards
Keep pouring in and deliver to described vehicle intelligent terminal display side and play out；Backup video file is sent to described figure by still further aspect
As compression module, described image compression module H.264 encode, and by the video code flow of generation together with the audio frequency after coding
File is sent along to described 4G network communication module.Described 4G network communication module passes through 4G network by video code flow and coding
Audio file be sent to server, the audio file of video code flow with coding is decoded by server, by decoded sound
Video image is sent to the meeting-place of strange land conference system and plays.
Additionally, the network vehicle-mounted conference system of described 4G also has photographic head automatically catches spokesman, automatically show spokesman
Spokesman is also done sharpening process by name.
It is that, when spokesman makes a speech, sound is sent to car by pick up that described photographic head catches the method for spokesman automatically
Load CPU, vehicle-mounted CPU carry out vocal print feature identification to sound and result are kept in, and send automatic capture command, shooting to photographic head
Head catch according to the face action of personnel in coverage, according to the action of its lip distinguish seizure to seem no be speech
Person, carries out iris feature identification to spokesman simultaneously, is sent by recognition result to vocal print letter temporary for vehicle-mounted CPU and vehicle-mounted CPU
Breath contrast, if result is inconsistent, returns and re-recognizes spokesman's sound；If result is consistent, then spokesman's name is being sent to
Server terminal, and be sent to strange land conference system by server terminal, at server terminal and/or strange land conference system
Display display spokesman's name, photographic head carries out sharpening to spokesman and shows simultaneously, and other background carries out fuzzy place
Reason.
Further, the coded method of audio-video signal is by described encoder: self-adaptive echo counteracting and/or self adaptation
Noise suppressing method and/or dereverberation method.
The network vehicle-mounted conference system of 4G that the present invention relates to, the audio, video data collected actively can be passed through 4G network to
Server is uploaded, and allows the real-time condition that the other side of meeting sees on car by video, and carries out live talk.Sound is regarded by the present invention
Frequency file upload download in real time, it is ensured that holding in real time of Multi-Party Conference, meet the demand held a meeting in real time at commercial car.
The network vehicle-mounted conference system of 4G that the present invention relates to, the arrangement with traditional Remote conference system is rapid, without the time
The advantages such as region restriction, low cost, also have and overcome in vehicular motion owing to the factor such as space-closed, vehicle vibration is drawn
The shortcoming that the pickup risen is the best with result of broadcast, the present invention improves the skill reaching sound Lossless transport with broadcasting to pick up
Art effect.The network vehicle-mounted conference system of 4G that the present invention relates to uses the method that photographic head catches automatically, can make remote participant
The very first time finds spokesman, the carrying out of meeting of being more convenient for.The network vehicle-mounted conference system of 4G that the present invention relates to uses 4G wireless
Network communication transmission data, can accomplish the high rate data transmission of audio frequency and video.The present invention also utilizes multiple living things feature recognition to attending a meeting
Personnel carry out Intelligent Recognition, have ensured the safety of meeting.The present invention has broad application prospects at car networking arenas.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1.
Wherein, the meaning that in figure, label represents is as follows:
1, image capture module, 2, pickup module.
Detailed description of the invention
Below by specific embodiment, further technical scheme is specifically described.It should be understood that below
Embodiment be intended only as illustrating, and do not limit the scope of the invention, those skilled in the art is according to the present invention simultaneously
Within the obvious change made and modification are also contained in the scope of the invention.
Embodiment 1
A kind of network vehicle-mounted conference system of 4G, including image capture module 1, pickup module 2, vehicle-mounted CPU, compression of images mould
Block, voice playing module, display module, 4G network communication module, memory module, biological characteristic recognition module, server.
Described image capture module 1 includes photographic head and photographic head controller.Described photographic head and photographic head controller electricity
Connect.Described pickup module 2 includes pick up and audio coder.Front, each seat in commercial vehicle/radio car is arranged
There is pickup module 2, facilitate the personnel on seat to make a speech.Described vehicle-mounted CPU is I.MX6 4 core processor based on ARM framework, tool
Body is 4 core processors of I.MX6 ARM CordecA9.Described image capture module 1, pickup module 2, voice playing module with
Vehicle-mounted CPU is connected by short-distance wireless communication passage.Described short-distance wireless communication passage connected mode is bluetooth and Z-
Wave agreement combines.The MP4 formatted file that image compression is become resolution to be 600 × 480 by described image compression module.
Described voice playing module includes decoder and power amplifier unit.Described display module is LCD car-mounted terminal display unit, described aobvious
Show that module electrically connects with vehicle-mounted CPU in the way of wired connection.Described wired connection mode is coaxial cable, USB (universal serial bus)
Or USB transmission line.The capacity of described memory module is more than 64G.The biological characteristic of described biological characteristic recognition module includes referring to
One or more combinations in stricture of vagina, iris, retina, facial characteristics, vocal print.Described server passes through 4G communication module with described
Vehicle-mounted CPU communication connects, and described server is also connected with strange land conference system.
Embodiment 2
A kind of method of the network vehicle-mounted conference system of 4G.The network vehicle-mounted conference system of the present embodiment 4G based on embodiment 1,
Each module and annexation thereof do not repeat them here.Concrete grammar is as follows:
When described vehicle-mounted conference system access server terminal, when setting up teleconference, vehicle-mounted conference system is reminded and is attended the meeting
Personnel register, and described vehicle-mounted conference system carries out living things feature recognition by described biological characteristic recognition module to persons attending the meeting,
Allow to participate in meeting, as the personnel occurring that living things feature recognition is not all inconsistent with background data base by the personnel of living things feature recognition
Time, system then can send warning, and during meeting is carried out, system can carry out contactless biometric identification at random, and
Time screen be not invited to people with a part in a conference person.
The network vehicle-mounted conference system of described 4G gathers video and audio frequency from image capture module 1 and pickup module 2, generates straight
Broadcast stream, and the end that uploaded onto the server by described live TV stream.
Particularly as follows: vehicle-mounted CPU controls image capture module 1 gathers video, by video backup and be stored in described storage mould
In block；Meanwhile, vehicle-mounted CPU controls the pick up collection voice data of described pickup module 2, by the coding of described pickup module 2
Device encodes, and the audio file after coding is backed up and is stored in described memory module.Audio frequency and video are believed by described encoder
Number coded method be: self-adaptive echo counteracting and/or adaptive noise suppressing method and/or dereverberation method.Vehicle-mounted CPU mono-
Aspect control voice data is sent to described vehicle intelligent terminal display side with video and plays out；Still further aspect will backup
Video file is sent to described image compression module, described image compression module H.264 encode, and the video that will generate
Code stream is sent along to described 4G network communication module together with the audio file after coding.Described 4G network communication module passes through 4G
The audio file of video code flow Yu coding is sent to server by network, and the audio file of video code flow with coding is entered by server
Row decoding, the meeting-place that decoded audiovisual presentation is sent to strange land conference system is play.
Additionally, the network vehicle-mounted conference system of described 4G also has photographic head automatically catches spokesman, automatically show spokesman
Spokesman is also done sharpening process by name.
It is that, when spokesman makes a speech, sound is sent to car by pick up that described photographic head catches the method for spokesman automatically
Load CPU, vehicle-mounted CPU carry out vocal print feature identification to sound and result are kept in, and send automatic capture command, shooting to photographic head
Head catch according to the face action of personnel in coverage, according to the action of its lip distinguish seizure to seem no be speech
Person, carries out iris feature identification to spokesman simultaneously, is sent by recognition result to vocal print letter temporary for vehicle-mounted CPU and vehicle-mounted CPU
Breath contrast, if result is inconsistent, returns and re-recognizes spokesman's sound；If result is consistent, then spokesman's name is being sent to
Server terminal, and be sent to strange land conference system by server terminal, at server terminal and/or strange land conference system
Display display spokesman's name, photographic head carries out sharpening to spokesman and shows simultaneously, and other background carries out fuzzy place
Reason.
Claims (6)
- The network vehicle-mounted conference system of 1.4G, it is characterised in that: include image capture module, pickup module, vehicle-mounted CPU, image pressure Contracting module, voice playing module, display module, 4G network communication module, memory module, biological characteristic recognition module, server；Described image capture module includes photographic head and photographic head controller；Described photographic head electrically connects with photographic head controller；Described pickup module includes pick up and audio coder；Front, each seat in commercial vehicle/radio car is both provided with Pickup module, facilitates the personnel on seat to make a speech；Described vehicle-mounted CPU is I.MX6 4 core processor based on ARM framework, at 4 cores of specially I.MX6 ARMCordecA9 Reason device；Described image capture module, pickup module, voice playing module are with vehicle-mounted CPU by short-distance wireless communication passage even Connect；The MP4 formatted file that image compression is become resolution to be 600 × 480 by described image compression module；Described voice playing module includes decoder and power amplifier unit；Described display module is LCD car-mounted terminal display unit, and described display module is electric with vehicle-mounted CPU in the way of wired connection Connect；The capacity of described memory module is more than 64G；The biological characteristic of described biological characteristic recognition module includes the one in fingerprint, iris, retina, facial characteristics, vocal print Or multiple combination；Described server is connected with described vehicle-mounted CPU communication by 4G communication module, described server also with strange land conference system Connect.
- The network vehicle-mounted conference system of 4G the most according to claim 1, it is characterised in that: described short-distance wireless communication passage The connected mode combination of one or more in bluetooth, Wi-Fi, Zigbee, Z-wave.
- The network vehicle-mounted conference system of 4G the most according to claim 2, it is characterised in that: described short-distance wireless communication passage Connected mode is that bluetooth combines with Z-wave agreement.
- 4. according to the network vehicle-mounted conference system of 4G described in any one of claims 1 to 3, it is characterised in that: described display module It is coaxial cable, USB (universal serial bus) or USB transmission line with the wired connection mode of vehicle-mounted CPU.
- The method of the network vehicle-mounted conference system of 5.4G, it is characterised in that: the method for the network vehicle-mounted conference system of described 4G is by weighing Profit requires what the network vehicle-mounted conference system of 4G described in 1～4 any one realized；When described vehicle-mounted conference system access server terminal, when setting up teleconference, vehicle-mounted conference system reminds persons attending the meeting Registering, described vehicle-mounted conference system carries out living things feature recognition by described biological characteristic recognition module to persons attending the meeting, passes through The personnel of living things feature recognition allow to participate in meeting, when the personnel that living things feature recognition is not all inconsistent with background data base occur, System then can send warning, and during meeting is carried out, system can carry out contactless biometric identification at random, to discriminate in time It is not invited to people with a part in a conference person；The network vehicle-mounted conference system of described 4G gathers video and audio frequency from image capture module and pickup module, generates live TV stream, And end that described live TV stream is uploaded onto the server；Detailed process is as follows:Vehicle-mounted CPU controls image capture module and gathers video, by video backup and be stored in described memory module；Meanwhile, car Carry CPU and control the pick up collection voice data of described pickup module, the encoder of described pickup module encode, will compile Audio file after Ma backs up and is stored in described memory module；Vehicle-mounted CPU mono-aspect controls voice data and video transmission Play out to described vehicle intelligent terminal display side；Backup video file is sent to described compression of images by still further aspect H.264, module, is encoded by described image compression module, and by the video code flow of generation together with the audio file one after coding With being sent to described 4G network communication module；Described 4G network communication module passes through 4G network by the audio frequency of video code flow Yu coding File is sent to server, and the audio file of video code flow with coding is decoded by server, by decoded audio frequency and video figure Play as being sent to the meeting-place of strange land conference system；Additionally, the network vehicle-mounted conference system of described 4G also has photographic head automatically catches spokesman, display spokesman's name automatically And spokesman is done sharpening process；Described photographic head catches the method for spokesman automatically, and when spokesman makes a speech, sound is sent to vehicle-mounted by pick up CPU, vehicle-mounted CPU carry out vocal print feature identification to sound and result are kept in, and send automatic capture command, photographic head to photographic head Catch according to the face action of personnel in coverage, according to the action of its lip distinguish seizure to seem no be speech Person, carries out iris feature identification to spokesman simultaneously, is sent by recognition result to vocal print letter temporary for vehicle-mounted CPU and vehicle-mounted CPU Breath contrast, if result is inconsistent, returns and re-recognizes spokesman's sound；If result is consistent, then spokesman's name is being sent to Server terminal, and it is sent to strange land conference system by server terminal, show at server terminal and/or strange land conference system Showing spokesman's name, photographic head carries out sharpening to spokesman and shows simultaneously, and other background is carried out Fuzzy Processing.
- The method of the network vehicle-mounted conference system of 4G the most according to claim 5, it is characterised in that: described encoder is to audio frequency and video The coded method of signal is: self-adaptive echo counteracting and/or adaptive noise suppressing method and/or dereverberation method.
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