CN114286038A - Video data transmission method, airborne terminal, computer device and storage medium - Google Patents
Video data transmission method, airborne terminal, computer device and storage medium Download PDFInfo
- Publication number
- CN114286038A CN114286038A CN202111613254.7A CN202111613254A CN114286038A CN 114286038 A CN114286038 A CN 114286038A CN 202111613254 A CN202111613254 A CN 202111613254A CN 114286038 A CN114286038 A CN 114286038A
- Authority
- CN
- China
- Prior art keywords
- video data
- streaming media
- mobile network
- current mobile
- real time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 30
- 238000007906 compression Methods 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 238000004590 computer program Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000013139 quantization Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Images
Abstract
The invention provides a video data transmission method, an airborne terminal, computer equipment and a storage medium, wherein the method comprises the following steps: in the flight process of the unmanned aerial vehicle, an airborne terminal collects video data and the reference signal receiving power of a current mobile network in real time; judging whether the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value or not; and if so, pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol. The technical scheme provided by the invention can ensure the transmission quality and stability of the video data returned by the unmanned aerial vehicle, and solves the technical problem that the transmission quality and stability are difficult to ensure because the video data returned by the unmanned aerial vehicle is influenced by the quality of network signals in the prior art.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle communication, in particular to a video data transmission method, an airborne terminal, computer equipment and a computer readable storage medium.
Background
An Unmanned Aerial Vehicle (UAV) is an Unmanned Aerial Vehicle operated by a radio remote control device and a self-contained program control device. Unmanned aerial vehicle can realize the collection of high resolution image, when making up satellite remote sensing and often sheltering from because of the cloud cover and can not obtain the image shortcoming, has solved traditional satellite remote sensing revisit cycle overlength, emergent untimely scheduling problem.
Currently, the video data collected by the drone is transmitted back to the background management system in real time mainly based on a 4G (4th Generation Mobile Communication Technology) network or a 5G (5th Generation Mobile Communication Technology) network of an operator. However, the transmission quality and stability of the video data transmitted back by the unmanned aerial vehicle are difficult to guarantee due to the influence of the network signal quality.
Disclosure of Invention
The invention is completed in order to at least partially solve the technical problem that the transmission quality and stability of the video data returned by the unmanned aerial vehicle are difficult to guarantee in the prior art.
According to an aspect of the present invention, there is provided a video data transmission method applied to an airborne terminal, the method including:
in the flight process of the unmanned aerial vehicle, video data and reference signal receiving power of a current mobile network are collected in real time;
judging whether the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value or not;
and if so, pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol.
Optionally, the first streaming media protocol supports an h.264 push streaming mode.
Optionally, if the reference signal received power of the current mobile network is smaller than the first preset threshold, the method further includes:
and suspending the video transmission task until the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value, and then pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol.
Optionally, after determining that the reference signal received power of the current mobile network is greater than or equal to the first preset threshold, the method further includes:
acquiring the signal-to-noise ratio of the current mobile network in real time;
judging whether the signal-to-noise ratio of the current mobile network is greater than or equal to a second preset threshold value or not;
if yes, the step of pushing the video data to the ground video receiving server in real time through a preset first streaming media protocol is executed.
Optionally, if the signal-to-noise ratio of the current mobile network is smaller than a second preset threshold, the method further includes:
the method comprises the steps of pushing video data to a ground protocol conversion gateway in real time based on a preset second streaming media protocol so that the ground protocol conversion gateway converts the second streaming media protocol into a first streaming media protocol, and then pushing received video data to a ground video receiving server in real time based on the first streaming media protocol, wherein the compression ratio of the second streaming media protocol is higher than that of the first streaming media protocol.
Optionally, the second streaming media protocol supports an h.265 push streaming mode.
According to another aspect of the present invention, there is provided an airborne terminal comprising:
the video data acquisition module is arranged for acquiring video data in real time in the flight process of the unmanned aerial vehicle;
the network signal acquisition module is set to acquire the reference signal receiving power of the current mobile network in real time;
a judging module configured to judge whether a reference signal received power of a current mobile network is greater than or equal to a first preset threshold; and the number of the first and second groups,
and the data transmission module is arranged to push the video data to the ground video receiving server in real time based on a preset first streaming media protocol when the judgment result of the judgment module is yes.
Optionally, the network signal acquisition module is further configured to acquire a signal-to-noise ratio of the current mobile network in real time;
the judging module is also set to judge whether the signal-to-noise ratio of the current mobile network is greater than or equal to a second preset threshold value after judging that the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold value;
the data transmission module is specifically configured to push video data to a ground video receiving server in real time based on a preset first streaming media protocol when a judgment result of the judgment module is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold and the signal-to-noise ratio is greater than or equal to a second preset threshold.
Optionally, the data transmission module is further configured to, when a determination result of the determination module is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold and the signal-to-noise ratio is smaller than a second preset threshold, push video data to a ground protocol conversion gateway in real time based on a preset second streaming media protocol, so that the ground protocol conversion gateway converts the second streaming media protocol into the first streaming media protocol, and then push the video data to a ground video receiving server in real time based on the first streaming media protocol, where a compression ratio of the second streaming media protocol is higher than a compression ratio of the first streaming media protocol.
According to still another aspect of the present invention, there is provided a computer apparatus including a memory in which a computer program is stored and a processor that executes the aforementioned video data transmission method when the processor runs the computer program stored in the memory.
According to still another aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, executes the aforementioned video data transmission method.
The technical scheme provided by the invention can have the following beneficial effects:
according to the video data transmission method provided by the invention, the corresponding data transmission scheme is adjusted according to the network parameter information of the current mobile network, the transmission quality and stability of the video data returned by the unmanned aerial vehicle can be ensured, and the technical problem that the transmission quality and stability are difficult to ensure because the video data returned by the unmanned aerial vehicle is influenced by the network signal quality in the prior art is solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic flowchart of a video data transmission method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating another video data transmission method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an airborne terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; furthermore, the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other without conflict.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
Fig. 1 is a flowchart illustrating a video data transmission method according to an embodiment of the present invention. The method is applied to an onboard terminal, and as shown in fig. 1, the method comprises the following steps S101 to S103.
S101, in the flight process of the unmanned aerial vehicle, video data and reference signal receiving power of a current mobile network are collected in real time.
In the step, the existing unmanned aerial vehicle with any model can be adopted to execute a flight task according to a preset track, and an unmanned aerial vehicle image system is utilized to acquire video data in real time in the flight process; meanwhile, an unmanned aerial vehicle communication module is used for collecting Reference Signal Receiving Power (RSRP for short) in the network parameter information of the current mobile network.
The mobile network may be a 4G network or a 5G network. The 5G technology has the technical characteristics of large bandwidth, low time delay, interference resistance, multi-beam pointing and the like, has four capabilities of high-definition image transmission, remote control, state monitoring and accurate positioning required by energized unmanned aerial vehicle application, and can effectively solve the problem of restricting the development of the existing unmanned aerial vehicle, so that the mobile network is preferably a 5G network.
S102, judging whether the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value, if so, executing a step S103; otherwise, the current flow is ended.
In this step, whether to execute the subsequent step of transmitting video data is determined according to the actual situation of the reference signal receiving power of the current mobile network. The first preset threshold may be set and adjusted by a person skilled in the art according to actual requirements, and may range from-105 dBm to-115 dBm, for example, may be set to-105 dBm, -110dBm, or-115 dBm.
And S103, pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol.
In this step, when the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold, the video data is pushed to the ground video receiving server in real time through the preset first streaming media protocol, so as to ensure the transmission quality and stability of the video data.
The method includes that a proper streaming media protocol can be selected from existing streaming media protocols as a preset first streaming media protocol according to a reference signal receiving power value of a current mobile network. Streaming media (streaming media) refers to a technology that a series of media data are compressed, and then sent in segments on a network, a continuous real-time stream is transmitted from a source end to a destination, and the data can be played immediately after the destination receives certain cache data. The conventional Streaming media protocols mainly include HTTP (Hyper Text Transfer Protocol), RTSP (Real Time Streaming Protocol), RTP (Real-Time Transport Protocol), RTCP (Real-Time Transport Control Protocol), RTMP (Real Time Messaging Protocol), RSVP (Resource Reservation Protocol), HDS (HTTP Dynamic Streaming ) Protocol, HLS (HTTP Live Streaming, HTTP Real-Time Streaming) Protocol, etc., and these Streaming media protocols are all the prior art, and are not described in detail herein.
In this embodiment, the video data collected by the unmanned aerial vehicle is transmitted to the ground video receiving server through the preset first streaming media protocol only when the reference signal receiving power of the current mobile network meets a certain value, so that the transmission quality and stability of the video data returned by the unmanned aerial vehicle are ensured.
In a specific embodiment, the first streaming media protocol supports an h.264 push streaming mode.
H.264 is a new generation digital video compression format following MPEG (Moving Picture Experts Group) -4, commonly proposed by the International Organization for Standardization (ISO) and the International Telecommunications Union (ITU). There are two organizations that have established video codec technology internationally, one is "International telecommunication Union, telecommunication standardization sector (ITU-T)", which establishes standards of H.261, H.263+, etc., and the other is "International organization for standardization (ISO)", which establishes standards of MPEG-1, MPEG-2, MPEG-4, etc. H.264 is a new digital Video Coding standard commonly established by JVT (Joint Video Team) which is jointly established by two organizations, so that the standard is not only H.264 of ITU-T, but also the tenth part of MPEG-4 Advanced Video Coding (AVC) of ISO/IEC (International Electro technical Commission).
H.264 is established on the basis of MPEG-4 technology, and the encoding and decoding process mainly comprises 5 parts: inter and intra prediction (Estimation), Transform (Transform) and inverse Transform, Quantization (Quantization) and inverse Quantization, Loop Filter (Loop Filter), Entropy Coding (Entropy Coding).
The most advantage of H.264 is that the compression ratio of H.264 is higher than 2 times of that of MPEG-2 and 1.5-2 times of that of MPEG-4 under the condition of the same image quality. For example, if the original file size is 88GB, the compression ratio is 25: 1 after being compressed by MPEG-2 compression standard to 3.5GB, and the compression ratio is 879MB after being compressed by H.264 compression standard, the compression ratio of H.264 reaches 102: 1 surprisingly from 88GB to 879 MB. The Low Bit Rate (Low Bit Rate) plays an important role in the high compression ratio of h.264, and compared with the compression techniques such as MPEG-2 and MPEG-4ASP, the h.264 compression technique will greatly save the download time and data traffic charges of users. In particular, h.264 has high quality and smooth images while having high compression ratio, so that the h.264 compressed video data requires less bandwidth in the network transmission process and is more economical.
In this embodiment, the video data is pushed to the ground video receiving server by the preset first streaming media protocol and the h.264 streaming mode, so that the required bandwidth is small while the high quality and smoothness of the transmitted image are ensured, which is not only economical, but also ensures the transmission quality and stability of the video data.
In one embodiment, if the determination result in step S102 is negative, the method further includes step S104.
And S104, pausing the video transmission task. And then returning to the step S102 to continuously monitor whether the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value or not until the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold value, and then executing the step S103 to push the video data to the ground video receiving server in real time based on a preset first streaming media protocol.
In this embodiment, the reference signal receiving power value of the current mobile network needs to be monitored in real time, if the reference signal receiving power value is greater than or equal to a first preset threshold, video data is pushed to the ground video receiving server in real time based on a preset first streaming media protocol, and if the reference signal receiving power value is smaller than the first preset threshold, a video transmission task is suspended until the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold, and then the video data is started to be pushed to the ground video receiving server.
Of course, if the reference signal receiving power of the current mobile network is always lower than the first preset threshold, the video data cannot be transmitted, and the video transmission task cannot be completed.
In one embodiment, if the determination result in step S102 is yes, the following steps S105 and S106 are further included before step S103.
S105, acquiring the signal-to-noise ratio of the current mobile network in real time;
s106, judging whether the signal-to-noise ratio of the current mobile network is greater than or equal to a second preset threshold value, if so, executing the step S103, and pushing the video data to a ground video receiving server in real time through a preset first streaming media protocol; otherwise, the current flow is ended.
The snr of the current mobile network refers to a Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio) of the current mobile network, which refers to a Ratio of the received strength of the useful Signal to the received strength of the Interference Signal (Noise and Interference); the second preset threshold can be set and adjusted by those skilled in the art according to actual requirements, and the value range thereof can be 3-10, for example, can be set to 3, 5, 8 or 10.
In this embodiment, when the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold, it is further required to determine whether the signal-to-noise ratio of the current mobile network is greater than or equal to the second preset threshold, and only when the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold and the signal-to-noise ratio of the current mobile network is greater than or equal to the second preset threshold, the reference signal receiving power of the current mobile network is transmitted to the ground video receiving server through the preset first streaming media protocol, so that the transmission quality and stability of the video data returned by the unmanned aerial vehicle are further ensured.
In one embodiment, if the determination result in step S106 is no, the method further includes step S107.
S107, video data are pushed to a ground protocol conversion gateway in real time based on a preset second streaming media protocol, so that the ground protocol conversion gateway converts the second streaming media protocol into the first streaming media protocol, and then the received video data are pushed to a ground video receiving server in real time based on the first streaming media protocol, wherein the compression ratio of the second streaming media protocol is higher than that of the first streaming media protocol.
The compression rate of the second streaming media protocol can be 1.2-2 times of the compression rate of the first streaming media protocol. Preferably 2 times.
In order to solve the problem, in this embodiment, a second streaming media protocol based on a compression rate higher than that of the first streaming media protocol first pushes video data acquired by the unmanned aerial vehicle to a ground protocol conversion gateway in real time, converts the second streaming media protocol into the first streaming media protocol by the ground protocol conversion gateway, and then pushes received video data to a ground video receiving server in real time based on the first streaming media protocol. The second streaming media protocol has higher compression rate and smaller bandwidth required by video data transmission, so that the transmission quality and stability of the video data can be effectively ensured, and after the streaming media protocol conversion is carried out through the ground protocol conversion gateway, the video data is pushed to the ground video receiving server through the first streaming media protocol, so that the video data can be immediately played after the video receiving server receives the video data, and the streaming transmission is realized.
In a specific embodiment, the second streaming media protocol supports h.265 push streaming.
H.265 is a new video coding standard made following h.264. The h.265 standard surrounds the existing video coding standard h.264, preserving some of the original techniques, while improving some of the related techniques.
In particular, h.265 has the greatest advantage of higher compression ratio than h.264 in terms of compression ratio, so as to further reduce the traffic required for video data transmission and reduce the storage and transmission costs. Conventionally, h.264 divides a picture into a plurality of macroblocks of the same size in units of 16 × 16 pixels (or in an arrangement of 16 × 8, 8 × 4, 4 × 4, etc.), and uses these macroblocks as the minimum elements for encoding, whereas h.265 determines the task of dividing the picture by manually setting it by a user and transferring it to an encoder, which can optionally divide the picture into a plurality of coding tree units in the sizes of 16 × 16, 32 × 32, 64 × 64, etc., and generally, the larger the block size, the better the compression efficiency. Through a series of optimization, the video coding compression technology of h.265 can reduce the size of the video file with the same picture and quality by half, and reduce the required transmission time by half, thereby providing a more perfect video compression solution for the limited network bandwidth.
In terms of transmission code rate, under the same image quality, the data size of H.265 is 1/16 of MPEG-2, 1/6 of MPEG-4 and 1/2 of H.264.
In the aspect of image quality, a Deblocking Filter (DF, Deblocking Filter for short) function is introduced into h.265, and the Deblocking Filter detects data of adjacent macro blocks during operation, reestablishes data dependency between the macro blocks, smoothes the edge region as much as possible, and improves the overall image quality. Under the condition of the same code rate, the definition of the H.265 coding format video is improved in the aspect of picture detail expression compared with the original H.264 coding format, and particularly, the definition is higher in the aspect of human face detail expression.
In this embodiment, the video data is pushed to the ground protocol conversion gateway by the preset second streaming media protocol and the h.265 streaming mode, so that bandwidth occupation is further reduced, and transmission quality and stability of the video data can be ensured.
It should be noted that the sequence of the above steps is only a specific example provided for illustrating the embodiment of the present invention, and the present invention does not limit the sequence of the above steps, and those skilled in the art can adjust the sequence as required in practical application; and the sequence number of the steps does not limit the execution sequence.
Fig. 2 is a flowchart illustrating another video data transmission method according to an embodiment of the present invention. As shown in fig. 2, the method includes the following steps S201 to S207.
S201, the airborne terminal starts to work;
the airborne terminal is adapted to an unmanned aerial vehicle native system, so that the unmanned aerial vehicle has the capability of accessing the 5G network;
s202, in the flight process of the unmanned aerial vehicle, the airborne terminal collects RSRP and SINR values of the 5G network in real time;
s203, judging whether the RSRP is larger than or equal to a first preset threshold (for example, -105dBm), if so, executing a step S205; if not, executing step S204;
s204, suspending the video transmission task, and returning to the step S203 to continue monitoring the RSRP value of the current 5G network;
s205, judging whether the SINR is greater than or equal to a second preset threshold (for example, 3), if so, executing a step S206, and if not, executing a step S207;
s206, pushing the video data to a ground video receiving server in real time through a preset first streaming media protocol and an H.264 streaming pushing mode until the video data transmission is finished;
s207, pushing video data to a ground protocol conversion gateway in real time based on a preset second streaming media protocol and an H.265 streaming pushing mode, converting the second streaming media protocol into the first streaming media protocol through the ground protocol conversion gateway, and then pushing the video data to a ground video receiving server in real time based on the first streaming media protocol and the H.264 streaming pushing mode until the video data transmission is completed.
The video data transmission method provided by the embodiment of the invention is particularly an airborne terminal self-adaptive video data transmission scheme, which can realize the autonomy of airborne terminal video data transmission and has the self-adaptive code pushing capability, has the capability of autonomously judging service signal conditions and adjusting the corresponding data transmission scheme under the condition that the mobile network signal quality is different in the actual flight scene of an unmanned aerial vehicle, and can effectively ensure the stable and reliable transmission and uninterrupted of video data acquired in the flight process of a networked unmanned aerial vehicle by judging the network RSRP and the SINR and carrying out the self-adaptive code pushing transmission on the video data, thereby having important significance in the actual landing.
Fig. 3 is a schematic structural diagram of an airborne terminal according to an embodiment of the present invention. The airborne terminal is used as an important support for unmanned aerial vehicle networking, so that the unmanned aerial vehicle has more autonomous and intelligent application capability, and plays a key role in widening the application field of the unmanned aerial vehicle.
As shown in fig. 3, the on-board terminal 3 includes: a video data acquisition module 31, a network signal acquisition module 32, a judgment module 33 and a data transmission module 34.
The video data acquisition module 31 is configured to acquire video data in real time in the flight process of the unmanned aerial vehicle; the network signal acquisition module 32 is arranged to acquire Reference Signal Received Power (RSRP) of the current mobile network in real time; the judging module 33 is configured to judge whether the reference signal received power of the current mobile network is greater than or equal to a first preset threshold; the data transmission module 34 is configured to push the video data to the ground video receiving server in real time based on a preset first streaming media protocol when the determination result of the determination module 33 is yes.
In this embodiment, the video data collected by the unmanned aerial vehicle is transmitted to the ground video receiving server through the preset first streaming media protocol only when the reference signal receiving power of the current mobile network meets a certain value, so that the transmission quality and stability of the video data returned by the unmanned aerial vehicle are ensured.
In a specific embodiment, the first streaming media protocol supports an h.264 push streaming mode.
In this embodiment, the video data is pushed to the ground video receiving server by the preset first streaming media protocol and the h.264 streaming mode, so that the required bandwidth is small while the high quality and smoothness of the transmitted image are ensured, which is not only economical, but also ensures the transmission quality and stability of the video data.
In a specific embodiment, the data transmission module 34 is further configured to suspend the video transmission task when the determination result of the determination module 33 is negative. Then, the network signal acquisition module 32 continues to monitor whether the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold value, until the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold value, the data transmission module 34 then executes a video transmission task, and pushes the video data to the ground video receiving server in real time based on a preset first streaming media protocol.
In this embodiment, the reference signal receiving power value of the current mobile network needs to be monitored in real time, if the reference signal receiving power value is greater than or equal to a first preset threshold, video data is pushed to the ground video receiving server in real time based on a preset first streaming media protocol, and if the reference signal receiving power value is smaller than the first preset threshold, a video transmission task is suspended until the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold, and then the video data is started to be pushed to the ground video receiving server.
In one embodiment, the network signal acquisition module 32 is further configured to acquire the signal-to-noise ratio of the current mobile network in real time; the determining module 33 is further configured to determine whether a signal-to-noise ratio (SINR) of the current mobile network is greater than or equal to a second preset threshold after determining that the reference signal received power of the current mobile network is greater than or equal to the first preset threshold; the data transmission module 34 is specifically configured to, when the determination result of the determination module 33 is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold, and the signal-to-noise ratio is greater than or equal to a second preset threshold, push the video data to the ground video receiving server in real time based on a preset first streaming media protocol.
In this embodiment, when the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold, it is further required to determine whether the signal-to-noise ratio of the current mobile network is greater than or equal to the second preset threshold, and only when the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold and the signal-to-noise ratio of the current mobile network is greater than or equal to the second preset threshold, the reference signal receiving power of the current mobile network is transmitted to the ground video receiving server through the preset first streaming media protocol, so that the transmission quality and stability of the video data returned by the unmanned aerial vehicle are further ensured.
In a specific embodiment, the data transmission module 34 is further configured to, when the determination result of the determination module 33 is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold and the signal-to-noise ratio is smaller than a second preset threshold, push the video data to the ground protocol conversion gateway in real time based on a preset second streaming media protocol, so that the ground protocol conversion gateway converts the second streaming media protocol into the first streaming media protocol, and then push the video data to the ground video receiving server in real time based on the first streaming media protocol, where a compression ratio of the second streaming media protocol is higher than a compression ratio of the first streaming media protocol.
In this embodiment, based on a second streaming media protocol with a compression rate higher than that of the first streaming media protocol, the video data acquired by the unmanned aerial vehicle is pushed to the ground protocol conversion gateway in real time, then the second streaming media protocol is converted into the first streaming media protocol through the ground protocol conversion gateway, and then the received video data is pushed to the ground video receiving server in real time based on the first streaming media protocol. The second streaming media protocol has higher compression rate and smaller bandwidth required by video data transmission, so that the transmission quality and stability of the video data can be effectively ensured, and after the streaming media protocol conversion is carried out through the ground protocol conversion gateway, the video data is pushed to the ground video receiving server through the first streaming media protocol, so that the video data can be immediately played after the video receiving server receives the video data, and the streaming transmission is realized.
In a specific embodiment, the second streaming media protocol supports h.265 push streaming.
In this embodiment, the video data is pushed to the ground protocol conversion gateway by the preset second streaming media protocol and the h.265 streaming mode, so that bandwidth occupation is further reduced, and transmission quality and stability of the video data can be ensured.
Therefore, the airborne terminal has the capabilities of judging the RSRP and the SINR of the mobile network and carrying out self-adaptive code pushing, the transmission mode of judging the service signal condition and carrying out self-adaptive code pushing is realized, and the reliable transmission completion rate of the video data can be increased.
The airborne terminal provided by the embodiment of the invention can realize the autonomy of airborne terminal video data transmission and has the self-adaptive code pushing capability, under the condition that the signal quality of mobile networks is different in the actual flying scene of the unmanned aerial vehicle, the airborne terminal has the capability of autonomously judging service signal conditions and adjusting corresponding data transmission schemes, and particularly, the stable and reliable transmission and uninterrupted of video data acquired in the flying process of the internet-connected unmanned aerial vehicle can be effectively ensured by judging the network RSRP and the SINR and carrying out the self-adaptive code pushing transmission on the video data, so that the airborne terminal has important significance in actual landing.
Based on the same technical concept, the embodiment of the present invention correspondingly provides a computer device, as shown in fig. 4, the computer device 4 includes a memory 41 and a processor 42, the memory 41 stores a computer program, and when the processor 42 runs the computer program stored in the memory 41, the processor 42 executes the foregoing video data transmission method.
Based on the same technical concept, embodiments of the present invention correspondingly provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the processor executes the foregoing video data transmission method.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A video data transmission method is applied to an onboard terminal, and comprises the following steps:
in the flight process of the unmanned aerial vehicle, video data and reference signal receiving power of a current mobile network are collected in real time;
judging whether the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value or not;
and if so, pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol.
2. The method of claim 1, wherein the first streaming media protocol supports h.264 push streaming.
3. The method of claim 1, wherein if the reference signal received power of the current mobile network is less than a first predetermined threshold, the method further comprises:
and suspending the video transmission task until the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold value, and then pushing the video data to a ground video receiving server in real time based on a preset first streaming media protocol.
4. The method of claim 1, further comprising, after determining that the reference signal received power of the current mobile network is greater than or equal to the first preset threshold:
acquiring the signal-to-noise ratio of the current mobile network in real time;
judging whether the signal-to-noise ratio of the current mobile network is greater than or equal to a second preset threshold value or not;
if yes, the step of pushing the video data to the ground video receiving server in real time through a preset first streaming media protocol is executed.
5. The method of claim 4, wherein if the SNR of the current mobile network is less than the second predetermined threshold, the method further comprises:
the method comprises the steps of pushing video data to a ground protocol conversion gateway in real time based on a preset second streaming media protocol so that the ground protocol conversion gateway converts the second streaming media protocol into a first streaming media protocol, and then pushing received video data to a ground video receiving server in real time based on the first streaming media protocol, wherein the compression ratio of the second streaming media protocol is higher than that of the first streaming media protocol.
6. The method of claim 5, wherein the second streaming media protocol supports H.265 push streaming.
7. An airborne terminal, comprising:
the video data acquisition module is arranged for acquiring video data in real time in the flight process of the unmanned aerial vehicle;
the network signal acquisition module is set to acquire the reference signal receiving power of the current mobile network in real time;
a judging module configured to judge whether a reference signal received power of a current mobile network is greater than or equal to a first preset threshold; and the number of the first and second groups,
and the data transmission module is arranged to push the video data to the ground video receiving server in real time based on a preset first streaming media protocol when the judgment result of the judgment module is yes.
8. The on-board terminal of claim 7,
the network signal acquisition module is also set to acquire the signal-to-noise ratio of the current mobile network in real time;
the judging module is also set to judge whether the signal-to-noise ratio of the current mobile network is greater than or equal to a second preset threshold value after judging that the reference signal receiving power of the current mobile network is greater than or equal to the first preset threshold value;
the data transmission module is specifically configured to push video data to a ground video receiving server in real time based on a preset first streaming media protocol when a judgment result of the judgment module is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold and the signal-to-noise ratio is greater than or equal to a second preset threshold.
9. The on-board terminal of claim 8,
the data transmission module is further configured to, when the determination result of the determination module is that the reference signal receiving power of the current mobile network is greater than or equal to a first preset threshold and the signal-to-noise ratio is less than a second preset threshold, push video data to a ground protocol conversion gateway in real time based on a preset second streaming media protocol so that the ground protocol conversion gateway converts the second streaming media protocol into the first streaming media protocol, and then push the video data to a ground video receiving server in real time based on the first streaming media protocol, wherein the compression ratio of the second streaming media protocol is higher than that of the first streaming media protocol.
10. A computer device comprising a memory in which a computer program is stored and a processor that executes the video data transmission method according to any one of claims 1 to 6 when the processor runs the computer program stored in the memory.
11. A computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, performs a video data transmission method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111613254.7A CN114286038B (en) | 2021-12-27 | 2021-12-27 | Video data transmission method, airborne terminal, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111613254.7A CN114286038B (en) | 2021-12-27 | 2021-12-27 | Video data transmission method, airborne terminal, computer equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114286038A true CN114286038A (en) | 2022-04-05 |
| CN114286038B CN114286038B (en) | 2024-03-22 |
Family
ID=80876013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111613254.7A Active CN114286038B (en) | 2021-12-27 | 2021-12-27 | Video data transmission method, airborne terminal, computer equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114286038B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041381A1 (en) * | 2022-08-24 | 2024-02-29 | 中国联合网络通信集团有限公司 | Unmanned aerial vehicle data transmission method and system, electronic device, and storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772115A (en) * | 2008-12-26 | 2010-07-07 | 中国移动通信集团公司 | Mobile terminal and video playing method, hybrid network and video data transmitting method |
| CN103581957A (en) * | 2012-07-25 | 2014-02-12 | 中国移动通信集团公司 | Interference detection method, device and system |
| CN106559715A (en) * | 2016-11-23 | 2017-04-05 | 中国联合网络通信集团有限公司 | Mobile network video transmission optimization method and device |
| US20170325211A1 (en) * | 2014-09-30 | 2017-11-09 | Datang Mobile Communications Equipment Co., Ltd. | Tm9-based carrier aggregation method and device |
| CN108347436A (en) * | 2018-01-31 | 2018-07-31 | 南京奇蛙智能科技有限公司 | A kind of unmanned plane long-distance video method for pushing based on high in the clouds |
| CN108614577A (en) * | 2018-05-30 | 2018-10-02 | 中国联合网络通信集团有限公司 | The information transferring method and device of unmanned plane |
| CN109104264A (en) * | 2018-09-10 | 2018-12-28 | 中国联合网络通信集团有限公司 | A kind of data transmission method and base station |
| CN109345804A (en) * | 2018-10-11 | 2019-02-15 | 天津大学 | A kind of unmanned aerial vehicle (UAV) control signaling and data transmission method based on mobile network |
| CN109495505A (en) * | 2018-12-21 | 2019-03-19 | 北京金山云网络技术有限公司 | Stream media protocol conversion method, device, system and computer-readable medium |
| CN110418386A (en) * | 2019-07-02 | 2019-11-05 | 中国电信集团工会上海市委员会 | A kind of method of the remote control control of unmanned plane |
| JP2020125110A (en) * | 2020-03-17 | 2020-08-20 | 株式会社ブルーストーンリンクアンドサークル | Unmanned flight body, system for generating three-dimensional communication quality information, and method for acquiring three-dimensional communication quality information |
| WO2021248505A1 (en) * | 2020-06-13 | 2021-12-16 | Qualcomm Incorporated | Base station reselection using a signal-to-noise ratio |
-
2021
- 2021-12-27 CN CN202111613254.7A patent/CN114286038B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772115A (en) * | 2008-12-26 | 2010-07-07 | 中国移动通信集团公司 | Mobile terminal and video playing method, hybrid network and video data transmitting method |
| CN103581957A (en) * | 2012-07-25 | 2014-02-12 | 中国移动通信集团公司 | Interference detection method, device and system |
| US20170325211A1 (en) * | 2014-09-30 | 2017-11-09 | Datang Mobile Communications Equipment Co., Ltd. | Tm9-based carrier aggregation method and device |
| CN106559715A (en) * | 2016-11-23 | 2017-04-05 | 中国联合网络通信集团有限公司 | Mobile network video transmission optimization method and device |
| CN108347436A (en) * | 2018-01-31 | 2018-07-31 | 南京奇蛙智能科技有限公司 | A kind of unmanned plane long-distance video method for pushing based on high in the clouds |
| CN108614577A (en) * | 2018-05-30 | 2018-10-02 | 中国联合网络通信集团有限公司 | The information transferring method and device of unmanned plane |
| CN109104264A (en) * | 2018-09-10 | 2018-12-28 | 中国联合网络通信集团有限公司 | A kind of data transmission method and base station |
| CN109345804A (en) * | 2018-10-11 | 2019-02-15 | 天津大学 | A kind of unmanned aerial vehicle (UAV) control signaling and data transmission method based on mobile network |
| CN109495505A (en) * | 2018-12-21 | 2019-03-19 | 北京金山云网络技术有限公司 | Stream media protocol conversion method, device, system and computer-readable medium |
| CN110418386A (en) * | 2019-07-02 | 2019-11-05 | 中国电信集团工会上海市委员会 | A kind of method of the remote control control of unmanned plane |
| JP2020125110A (en) * | 2020-03-17 | 2020-08-20 | 株式会社ブルーストーンリンクアンドサークル | Unmanned flight body, system for generating three-dimensional communication quality information, and method for acquiring three-dimensional communication quality information |
| WO2021248505A1 (en) * | 2020-06-13 | 2021-12-16 | Qualcomm Incorporated | Base station reselection using a signal-to-noise ratio |
Non-Patent Citations (1)
| Title |
|---|
| 李福昌;张勍;范斌;: "中国联通LIGHT-Net解决方案", 邮电设计技术, no. 09, 20 September 2015 (2015-09-20) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041381A1 (en) * | 2022-08-24 | 2024-02-29 | 中国联合网络通信集团有限公司 | Unmanned aerial vehicle data transmission method and system, electronic device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114286038B (en) | 2024-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11108993B2 (en) | Predictive network management for real-time video with varying video and network conditions | |
| RU2666311C1 (en) | Method and video coding device, and the method and video decoding device, which jointly use the sao parameters between the color components | |
| CN103688547B (en) | Adaptation parameter sets for video coding | |
| KR101663668B1 (en) | Method and apparatus for Video Encoding in Image Padding Area, method and apparatus for video decoding in Image Padding Area | |
| RU2645291C2 (en) | Quantization parameter (qp) encoding when encoding video | |
| CN106416260B (en) | Method, equipment and the computer-readable media that video data is encoded | |
| CN110381316B (en) | Video transmission control method, device, equipment and storage medium | |
| TWI586177B (en) | Adaptive bit rate control based on scenes | |
| CN103430539A (en) | Decoded picture buffer management | |
| CN103957389A (en) | 3G video transmission method and system based on compression sensing | |
| TW201415904A (en) | Motion prediction method, motion compensation method, motion prediction apparatus, motion compensation apparatus, and computer readable recording medium for inter-prediction | |
| KR20160136310A (en) | Method for performing filtering at partition boundary of block related to 3d image | |
| US8249141B1 (en) | Method and system for managing bandwidth based on intraframes | |
| KR101676788B1 (en) | Method and apparatus for parallel video decoding based on multi-core system | |
| CN114286038B (en) | Video data transmission method, airborne terminal, computer equipment and storage medium | |
| CN106454271A (en) | Video processing system and method | |
| CN102457714A (en) | Method, system and device for transmission of audio-video data acquired by video camera | |
| KR20190089426A (en) | Method and apparatus for image encoding using artifact reduction filter, method and apparatus for image decoding using artifact reduction filter | |
| CN103475878A (en) | Video coding method and encoder | |
| EP2801194A1 (en) | Quantization matrix (qm) coding based on weighted prediction | |
| US20120033090A1 (en) | Network camera, operation control method, and recording medium | |
| US20100232769A1 (en) | Bandwidth control method, device and system | |
| CN113676750A (en) | Stream media server cluster management system | |
| KR102101507B1 (en) | Method and Apparatus for Lossless Network Video Transmission | |
| KR101840685B1 (en) | Apparatus And Method To Return Part Of Guaranteed Bandwidth For Transmission Of Variable Bitrate Media |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |