CN105450984A - Data sending method and system - Google Patents
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- CN105450984A CN105450984A CN201510759420.2A CN201510759420A CN105450984A CN 105450984 A CN105450984 A CN 105450984A CN 201510759420 A CN201510759420 A CN 201510759420A CN 105450984 A CN105450984 A CN 105450984A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 70
- 238000007906 compression Methods 0.000 claims description 27
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- 238000012545 processing Methods 0.000 claims description 17
- 238000003672 processing method Methods 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 5
- 238000010295 mobile communication Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 4
- 238000005194 fractionation Methods 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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Abstract
The invention discloses a data sending method and a system, wherein the method comprises the following steps: the method comprises the steps of receiving video data and telemetering data, multiplexing the video data and the telemetering data into one path of data, splitting the one path of multiplexed data into N paths of data, and sending the N paths of data to a ground control center through K mobile communication data channels, namely, in the embodiment of the invention, the split data are sent to the ground control center through the K mobile communication data channels, so that the effect of transmitting high-definition data in real time by utilizing a plurality of narrow-bandwidth mobile communication data channels is achieved, a high-speed channel capable of meeting the requirements of unidirectional digital video transmission and bidirectional telemetering and remote control real-time transmission is formed, and the real-time transmission capability of the unmanned aerial vehicle for cross-region high-definition video is improved.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of data transmission method for uplink and system.
Background technology
The application in the military-civil field of current unmanned plane is day by day extensive.UAV Video telecommunication transmission system is generally preserved in airborne hard disk by the field video signal collected in task engine flight course, and by cordless communication network by real-time data transmission to charge center, ground.Because HD video data volume is comparatively large, higher to bandwidth requirement in real-time Transmission process.Under though current portions scheme adopts sighting distance Data-Link, figure conducts electricity, the schemes such as platform+data radio station can solve line of sight conditions, HD video transmits, but anti-ability of blocking is poor.Based on 3G multi-link aggregated, single 4G terminal (including but not limited to TDDLTE and FDDLTE) although etc. public wireless network realize be applicable to complex environment, but in real-time Transmission process, wireless bandwidth is less, the high-definition image of transmission cannot reach ideal effect, needs a kind of more efficient HD video transmitting device based on public number mobile communication badly.
Summary of the invention
Embodiments provide a kind of data transmission method for uplink and system, in order to realize the more efficient HD video transmitting device based on public number mobile communication.
Its concrete technical scheme is as follows:
A kind of data transmission method for uplink, described method comprises:
Receiving video data and telemetry, and described video data and described telemetry are multiplexed to a circuit-switched data;
The circuit-switched data be multiplexed to is split into N circuit-switched data, wherein, N be more than or equal to 1 positive integer;
By K bar mobile data passage, N circuit-switched data is sent to ground control centre, wherein, K is more than or equal to the positive integer that 2 are less than or equal to N.
Optionally, described video data and described telemetry are multiplexed to a circuit-switched data, comprise:
Obtain transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator;
According to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio;
By the video compression ratio selected, described video data and described telemetry are multiplexed to a circuit-switched data.
Optionally, according to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio, comprising:
The effective mobile data passage of M bar is determined in the transmission state and transmission bandwidth of N bar mobile data passage;
According to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.
Optionally, by K bar mobile data passage, N circuit-switched data is sent to ground control centre, comprises:
In all mobile data passages, determine the effective mobile data passage of K bar, described effective mobile data passage is the passage that can transmit data;
According to allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage;
Respectively by K bar mobile data passage, N circuit-switched data is sent to ground control centre.
Optionally, according to allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage, comprises:
Obtain the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage;
According to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar;
According to described allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage.
Optionally, after by K bar mobile data passage N circuit-switched data being sent to ground control centre, described method also comprises:
The mobile data passage with maximum bandwidth is determined at K bar mobile data passage;
By the control signal that ground control centre described in the mobile data channel reception with maximum bandwidth sends.
Optionally, after by K bar mobile data passage N circuit-switched data being sent to ground control centre, described method also comprises:
Detect in K bar mobile data passage and whether there is fault mobile data passage;
When detect in K bar mobile data passage there is L bar fault mobile data passage time, then send by K-L bar mobile data passage the data splitting out, wherein, L is the positive integer being less than K.
Optionally, described mobile data passage contains the data channel under at least two kinds of 4G standards.
A kind of data processing method, described method comprises:
Receive the N circuit-switched data that K bar mobile data passage sends, wherein, K is more than or equal to the positive integer that 2 are less than N;
Solution multiple connection process is carried out to N circuit-switched data, obtains video data and telemetry.
A kind of data Transmission system, comprising:
Video sampling and compressing device, for receiving video data and telemetry, and is multiplexed to a circuit-switched data by described video data and described telemetry;
On-board data processing unit, for be multiplexed to one circuit-switched data is split into N circuit-switched data, wherein, N be more than or equal to 1 positive integer;
Data load balance device, for N circuit-switched data being sent to ground control centre by K bar mobile data passage, wherein, K is more than or equal to the positive integer that 2 are less than or equal to N.
Optionally, described on-board data processing unit, specifically for obtaining transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator; According to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio; By the video compression ratio selected, described video data and described telemetry are multiplexed to a circuit-switched data.
Optionally, described on-board data processing unit, specifically for determining the effective mobile data passage of M bar in the transmission state and transmission bandwidth of N bar mobile data passage; According to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.
Optionally, described data load balance device, specifically for determining the effective mobile data passage of K bar in all mobile data passages, described effective mobile data passage is the passage that can transmit data; According to allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage; Respectively by K bar mobile data passage, N circuit-switched data is sent to ground control centre.
Optionally, described data load balance device, specifically for obtaining the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage; According to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar; According to described allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage.
Optionally, described data load balance device, also for determining the mobile data passage with maximum bandwidth at K bar mobile data passage; By the control signal that ground control centre described in the mobile data channel reception with maximum bandwidth sends.
Optionally, described data load balance device, also for detecting in K bar mobile data passage whether there is fault mobile data passage; When detect in K bar mobile data passage there is L bar fault mobile data passage time, then send by K-L bar mobile data passage the data splitting out, wherein, L is the positive integer being less than K.
A kind of data handling system, comprising:
Ground network access unit, for receiving the N circuit-switched data that K bar mobile data passage sends, wherein, K is more than or equal to the positive integer that 2 are less than N;
Ground data processing unit, for carrying out solution multiple connection process to N circuit-switched data, obtains video data and telemetry.
Embodiments provide a kind of data transmission method for uplink, the method comprises: receiving video data and telemetry, and video data and telemetry are multiplexed to a circuit-switched data, the circuit-switched data be multiplexed to is split into N circuit-switched data, by K bar mobile data passage, N circuit-switched data is sent to ground control centre, that is, in embodiments of the present invention, by K bar mobile data passage, fractionation data are sent to ground control centre, reach the effect of the mobile data passage real-time Transmission high-definition data utilizing many narrow bandwidths, composition can meet digital video one-way transmission, the high-speed channel that the two-way real-time Transmission of remote measuring and controlling needs, thus improve unmanned plane cross-region HD video real-time Transmission ability.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of data transmission method for uplink in the embodiment of the present invention;
Fig. 2 is the flow chart of a kind of data processing method in the embodiment of the present invention;
Fig. 3 is the structural representation of a kind of data Transmission system in the embodiment of the present invention;
Fig. 4 is the structural representation of a kind of data handling system in the embodiment of the present invention.
Embodiment
Embodiments provide a kind of data transmission method for uplink and system, the method comprises: receiving video data and telemetry, and video data and telemetry are multiplexed to a circuit-switched data, the circuit-switched data be multiplexed to is split into N circuit-switched data, by K bar mobile data passage, N circuit-switched data is sent to ground control centre, that is, in embodiments of the present invention, by K bar mobile data passage, fractionation data are sent to ground control centre, reach the effect of the mobile data passage real-time Transmission high-definition data utilizing many narrow bandwidths, composition can meet digital video one-way transmission, the high-speed channel that the two-way real-time Transmission of remote measuring and controlling needs, thus improve unmanned plane cross-region HD video real-time Transmission ability.
Below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail, be to be understood that, the explanation of concrete technical characteristic in the embodiment of the present invention and embodiment just to technical solution of the present invention, instead of limit, when not conflicting, the concrete technical characteristic in the embodiment of the present invention and embodiment can combine mutually.
Be illustrated in figure 1 the flow chart of a kind of data transmission method for uplink in the embodiment of the present invention, the method comprises:
S101, receiving video data and telemetry, and video data and telemetry are multiplexed to a circuit-switched data;
S102, splits into N circuit-switched data by the circuit-switched data be multiplexed to;
S103, is sent to ground control centre by K bar mobile data passage by N circuit-switched data.
Specifically, in embodiments of the present invention, the method can be applied in unmanned plane terminal, can comprise interface arrangement, video sampling and compressing device, on-board data processing unit, data load balance device, modulation-demodulation device and antenna, specifically as shown in Figure 2 in this unmanned plane terminal.
This interface arrangement adopts board plug type structure, according to the difference of Airborne Terminal interface, can design different interface boards.Image interface can be designed as SDI, YPbPr, HDMI etc., and low speed measuring and control data interface can be the polytypes such as RS232, RS485, RS422, CAN, and number is not limit.
Video sampling and compressing device can be real-time receiving video data, and to video data carry out compression process;
On-board data processing unit, for carrying out deconsolidation process to the video data of compression;
Data load balance device, for by split after data allocations to each mobile data passage;
Modulation-demodulation device, for modulating the data sent, and carries out demodulation to the data received, in embodiments of the present invention, because mobile data passage is different, so modulation-demodulation device is not identical yet;
Antenna, for sending and receiving data.
The implementation procedure that detailed description is concrete below:
Such as airborne modulation-demodulation device has N number of, when receiving video data and telemetry, video data and telemetry are multiplexed to a circuit-switched data, the multiple connection that can realize video data and telemetry by following mode in embodiments of the present invention:
Obtain transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator, according to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio, by the video compression ratio selected, video data and telemetry are multiplexed to a circuit-switched data.That is, before the multiple connection carrying out data, first the operating state determining current N number of modulator-demodulator is needed, and the bandwidth of each self-corresponding mobile data passage of this N number of modulator-demodulator, if the operating state of N number of modulator-demodulator is all normal, and when the bandwidth of the mobile data passage that each modulator-demodulator is corresponding is also idle, then can selects high video compression ratio, the picture quality of video data can be ensured like this.Certainly, if there is abnormal modulator-demodulator in N number of modulator-demodulator, or the bandwidth of part mobile data passage is occupied, then can select low video compression ratio, can ensure that the packet after compressing effectively can utilize the bandwidth of mobile data passage like this.
Further, in embodiments of the present invention, in order to ensure the accuracy to video data and telemetry compression, the effective mobile data passage of M bar can also be determined at the transmission state of N bar mobile data passage and transmission bandwidth, according to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.That is, before carrying out data compression, need to determine the mobile data passage that can effectively use, and determine a video compression ratio accurately according to effective mobile data passage, can ensure that last video compression is than the transmittability that can adapt to mobile data passage like this, thus ensure that the stability of transfer of data.
After the video data received and telemetry are multiplexed to a circuit-switched data, the circuit-switched data be multiplexed to can be split into N circuit-switched data by on-board data processing unit, here fractionation mode is as splitting condition according to the data of modulator-demodulator, that is, when there is N number of modulator-demodulator, be N circuit-switched data by the Data Division of multiple connection.
Further, in embodiments of the present invention, in order to ensure that data accurately and timely can transfer to ground control centre, therefore, when splitting, determine the adjustment modulator-demodulator that there is fault at N number of modulator-demodulator, if when there is A modem failure, be then the Data Division on a road by multiple connection be N-A circuit-switched data, can be that each normal modulator-demodulator distributes the data volume adapted to like this in follow-up distribution.
Certainly, in embodiments of the present invention, split outside data by above-mentioned mode, data can also be split in other way, not limit concrete implementation in embodiments of the present invention.
After the Data Division of multiple connection is become N circuit-switched data, move communication data channel by K bar and N circuit-switched data is sent to ground control centre.
Further, in embodiments of the present invention in order to ensure that the N circuit-switched data splitting out adaptively can distribute to mobile data passage, therefore, in all mobile data passages, determine the effective mobile data passage of K bar, effectively mobile data passage is the passage that can transmit data here.
According to allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage, then respectively by K bar mobile data passage, N circuit-switched data is sent to ground control centre.
Allocation proportion can be determined by following mode in embodiments of the present invention:
Obtain the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage, according to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar.Such as, the bandwidth of the first mobile data passage is 5M, the bandwidth of the second mobile data passage is 10M, the bandwidth of the 3rd mobile data passage is 15M, then corresponding allocation proportion 1:2:3, that is: the data volume of the first mobile data channel allocation 1/2, the data volume of the second mobile data channel allocation 1/3, the data volume of the 3rd mobile data channel allocation 1/6, this ensure that every bar mobile data passage can be assigned to suitable data volume, thus make data completely in time can be sent to ground control centre.
Here it should be noted that, in embodiments of the present invention, the way of Data Division is identical with effective mobile data port number, such as have the effective mobile data passage of K bar, then by K road that a circuit-switched data of multiple connection is split as, certainly, when carrying out data allocations, also K circuit-switched data is distributed to K bar mobile data passage, the data of the fractionation that can be so more reasonably can distribute to corresponding mobile data passage, thus ensure that splitting data can mate with effective mobile data passage, and then ensure integrality and the stability of transfer of data.
Further, in embodiments of the present invention, when control centre sends data earthward, whether this exists fault mobile data passage by lasting detection K bar mobile data passage, when detect in K bar mobile data passage there is L bar fault mobile data passage time, then send by K-L bar mobile data passage the data splitting out, wherein, L is the positive integer being less than K.That is, if when occurring that some mobile data passage breaks down, the mobile data passage of fault can be got rid of timely, this ensure that data can be sent to ground control centre complete and accurately, avoid loss of data.
It should be noted that in addition, in embodiments of the present invention, above-mentioned mobile data passage has contained at least the data channel under two kinds of 4G standards, such as the data channel under the 4G standards such as TD-SCDMA, WCDMA, cdma2000.
Corresponding, the embodiment of the present invention additionally provides a kind of data processing method, and be illustrated in figure 2 the flow chart of a kind of data processing method in the embodiment of the present invention, the method comprises:
S101, receives the N circuit-switched data that K bar mobile data passage sends;
S102, carries out solution multiple connection process to N circuit-switched data, obtains video data and telemetry.
Letter is answered, method flow shown in Fig. 2 is applied on ground control centre, ground control centre can receive the data that airborne equipment sends, flow chart shown in Fig. 1 is that airborne equipment carries out data splitting the process sent, ground control centre receives airborne equipment receives the transmission of K bar mobile data passage data by ground network access unit, then ground control centre is processed data against processing unit and ground data processing unit by data load balance, thus obtain video data that airborne equipment collects and telemetry, last ground control centre demonstrates video data and telemetry etc. by display.Therefore completely in time can receive data by K bar mobile data passage, thus ensure that the quality of the data received, and effectively can make up the coverage hole of various network, improve communication coverage area, expand the seaworthiness scope of unmanned plane.
A kind of data transmission method for uplink in the corresponding embodiment of the present invention, embodiments provide a kind of data sending device, be illustrated in figure 3 the structural representation of a kind of data sending device in the embodiment of the present invention, this device comprises:
Video sampling and compressing device 301, for receiving video data and telemetry, and is multiplexed to a circuit-switched data by described video data and described telemetry;
On-board data processing unit 302, for be multiplexed to one circuit-switched data is split into N circuit-switched data, wherein, N be more than or equal to 1 positive integer;
Data load balance device 303, for N circuit-switched data being sent to ground control centre by K bar mobile data passage, wherein, K is more than or equal to the positive integer that 2 are less than or equal to N.
Further, in embodiments of the present invention, described on-board data processing unit 302, specifically for obtaining transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator; According to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio; By the video compression ratio selected, described video data and described telemetry are multiplexed to a circuit-switched data.
Further, in embodiments of the present invention, described on-board data processing unit 302, specifically for determining the effective mobile data passage of M bar in the transmission state and transmission bandwidth of N bar mobile data passage; According to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.
Further, in embodiments of the present invention, described data load balance device 303, specifically for determining the effective mobile data passage of K bar in all mobile data passages, described effective mobile data passage is the passage that can transmit data; According to allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage; Respectively by K bar mobile data passage, N circuit-switched data is sent to ground control centre.
Further, in embodiments of the present invention, described data load balance device 303, specifically for obtaining the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage; According to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar; According to described allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage.
Further, in embodiments of the present invention, described data load balance device 303, also for determining the mobile data passage with maximum bandwidth at K bar mobile data passage; By the control signal that ground control centre described in the mobile data channel reception with maximum bandwidth sends.
Further, in embodiments of the present invention, described data load balance device 303, also for detecting in K bar mobile data passage whether there is fault mobile data passage; When detect in K bar mobile data passage there is L bar fault mobile data passage time, then send by K-L bar mobile data passage the data splitting out, wherein, L is the positive integer being less than K.
In addition, the embodiment of the present invention additionally provides a kind of data handling system, is illustrated in figure 4 the structural representation of a kind of data handling system in the embodiment of the present invention, and this system comprises:
Ground network access unit 401, for receiving the N circuit-switched data that K bar mobile data passage sends, wherein, K is more than or equal to the positive integer that 2 are less than N;
Ground data processing unit 402, for carrying out solution multiple connection process to N circuit-switched data, obtains video data and telemetry.
Although described the preferred embodiment of the application, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (12)
1. a data transmission method for uplink, is characterized in that, described method comprises:
Receiving video data and telemetry, and described video data and described telemetry are multiplexed to a circuit-switched data;
The circuit-switched data be multiplexed to is split into N circuit-switched data, wherein, N be more than or equal to 1 positive integer;
By K bar mobile data passage, N circuit-switched data is sent to ground control centre, wherein, K is more than or equal to the positive integer that 2 are less than or equal to N.
2. the method for claim 1, is characterized in that, described video data and described telemetry is multiplexed to a circuit-switched data, comprises:
Obtain transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator;
According to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio;
By the video compression ratio selected, described video data and described telemetry are multiplexed to a circuit-switched data.
3. method as claimed in claim 2, is characterized in that, according to transmission state and the transmission bandwidth of N bar mobile data passage, selects corresponding video compression ratio, comprising:
The effective mobile data passage of M bar is determined in the transmission state and transmission bandwidth of N bar mobile data passage;
According to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.
4. the method for claim 1, is characterized in that, by K bar mobile data passage, N circuit-switched data is sent to ground control centre, comprises:
Obtain the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage;
According to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar;
According to described allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage.
5. the method for claim 1, is characterized in that, described method also comprises:
Detect in K bar mobile data passage and whether there is fault mobile data passage;
When detect in K bar mobile data passage there is L bar fault mobile data passage time, then send by K-L bar mobile data passage the data splitting out, wherein, L is the positive integer being less than K.
6. a data processing method, is characterized in that, described method comprises:
Receive the N circuit-switched data that K bar mobile data passage sends, wherein, K is more than or equal to the positive integer that 2 are less than N;
Solution multiple connection process is carried out to N circuit-switched data, obtains video data and telemetry.
7. a data Transmission system, is characterized in that, comprising:
Video sampling and compressing device, for receiving video data and telemetry, and is multiplexed to a circuit-switched data by described video data and described telemetry;
On-board data processing unit, for be multiplexed to one circuit-switched data is split into N circuit-switched data, wherein, N be more than or equal to 1 positive integer;
Data load balance device, for N circuit-switched data being sent to ground control centre by K bar mobile data passage, wherein, K is more than or equal to the positive integer that 2 are less than or equal to N.
8. system as claimed in claim 7, is characterized in that, described on-board data processing unit, specifically for obtaining transmission state and the transmission bandwidth of N bar mobile data passage corresponding to N number of modulator-demodulator; According to transmission state and the transmission bandwidth of N bar mobile data passage, select corresponding video compression ratio; By the video compression ratio selected, described video data and described telemetry are multiplexed to a circuit-switched data.
9. system as claimed in claim 7, is characterized in that, described on-board data processing unit, specifically for determining the effective mobile data passage of M bar in the transmission state and transmission bandwidth of N bar mobile data passage; According to the effective mobile data passage of M bar, select the video compression ratio that M bar effective mobile data passage is corresponding.
10. system as claimed in claim 7, is characterized in that, described data load balance device, specifically for obtaining the current bandwidth of every effective mobile data passage of bar in K bar effective mobile data passage; According to the current bandwidth of the effective mobile data passage of every bar, determine the allocation proportion of the effective mobile data passage of every bar; According to described allocation proportion, N circuit-switched data is prorated to respectively the effective mobile data passage of every bar in K bar effective mobile data passage.
11. systems as claimed in claim 10, is characterized in that, described data load balance device, also for determining the mobile data passage with maximum bandwidth at K bar mobile data passage; By the control signal that ground control centre described in the mobile data channel reception with maximum bandwidth sends.
12. 1 kinds of data handling systems, is characterized in that, comprising:
Ground network access unit, for receiving the N circuit-switched data that K bar mobile data passage sends, wherein, K is more than or equal to the positive integer that 2 are less than N;
Ground data processing unit, for carrying out solution multiple connection process to N circuit-switched data, obtains video data and telemetry.
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| CN201510759420.2A CN105450984A (en) | 2015-11-09 | 2015-11-09 | Data sending method and system |
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| CN201510759420.2A CN105450984A (en) | 2015-11-09 | 2015-11-09 | Data sending method and system |
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| CN106230913A (en) * | 2016-07-25 | 2016-12-14 | 北京云汉通航科技有限公司 | Data process transmission method and device |
| CN108738007A (en) * | 2018-06-06 | 2018-11-02 | 科大讯飞股份有限公司 | A kind of audio frequency transmission method, equipment and system |
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