CN113794761B - Remote video downloading method of vehicle-mounted terminal and server - Google Patents
Remote video downloading method of vehicle-mounted terminal and server Download PDFInfo
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- CN113794761B CN113794761B CN202111042607.2A CN202111042607A CN113794761B CN 113794761 B CN113794761 B CN 113794761B CN 202111042607 A CN202111042607 A CN 202111042607A CN 113794761 B CN113794761 B CN 113794761B
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004590 computer program Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Abstract
The invention relates to a remote video downloading method of a vehicle-mounted terminal and a server, which belong to the technical field of video downloading, and the remote video downloading method of the vehicle-mounted terminal and the server convert video playback video streams into video files through a video playback request in JT1078 under the condition that the server is not provided with an FTP server, so that a user can download the video files under the condition that the server is not provided with the FTP service, the applicability is improved, and the remote video downloading of the vehicle-mounted terminal is more convenient. When the vehicle-mounted terminal uploads the video file, the JT808 server transmits video file data received by the FTP to a user requesting downloading, and when the vehicle-mounted terminal finishes uploading the video file, the user can also download the video file, so that the video downloading efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of video downloading, and particularly relates to a remote video downloading method of a vehicle-mounted terminal and a server.
Background
JT808 is a standard protocol for communications between road transport vehicle satellite positioning system vehicle terminals and supervisory/monitoring platforms that are outbound from the department of transportation. JT808 defines the communication protocols and data formats between the road transport vehicle satellite positioning system vehicle terminals and the supervisory/monitoring platform, including protocol foundations, communication connections, message processing, protocol classifications and requirements, and data formats. JT1078 is a standard protocol for transmitting audio and video data between a vehicle-mounted video terminal of a satellite positioning system of a road transport vehicle and an enterprise video monitoring platform, and exchanging and sharing audio and video resources between different video platforms. JT1078 prescribes a protocol foundation and a communication protocol between a vehicle-mounted video terminal and a video platform, code stream communication between an audio and video stream server and client playing software, and a communication protocol foundation, a communication protocol flow, a constant definition and a protocol data body format between video platforms in a road transport vehicle satellite positioning system.
In the related art, a remote video downloading method of a JT1078 vehicle-mounted terminal generally includes that a user sends a downloading request to a JT808 gateway, the JT808 gateway realizes a JT1078 protocol, the downloading request is sent to vehicle-mounted terminal equipment, and the sent request carries related information of downloading video and related information of an FTP server for receiving video files. After receiving the downloading request, the vehicle-mounted terminal sends the appointed video file to the appointed FTP file server through the FTP, and after the uploading is completed, the JT808 gateway is informed of the completion of the uploading. The JT808 gateway then informs the downloading user to download the video file via HTTP or other means.
However, this downloading method must necessarily deploy an FTP server, which would not be able to download the in-vehicle video file without the FTP server. Therefore, how to conveniently and efficiently realize the downloading of the remote video of the vehicle-mounted terminal becomes a technical problem to be solved in the prior art.
Disclosure of Invention
The invention provides a remote video downloading method and a server for a vehicle-mounted terminal, which are used for solving the technical problems that in the prior art, a vehicle-mounted video file cannot be downloaded without an FTP server and the downloading efficiency is low.
The technical scheme provided by the invention is as follows:
on the one hand, the remote video downloading method of the vehicle-mounted terminal comprises the following steps:
receiving a remote video downloading request of a vehicle-mounted terminal sent by a user terminal, wherein the remote video downloading request of the vehicle-mounted terminal carries remote video information of the vehicle-mounted terminal;
judging whether historical data of remote video information of the vehicle-mounted terminal exists or not;
if the history data of the remote video information of the vehicle-mounted terminal does not exist, judging whether an FTP server is deployed or not;
if the FTP server is not deployed, a video playback instruction is sent to the vehicle-mounted terminal based on JT1078 protocol, so that the vehicle-mounted terminal sends the corresponding video stream to a designated port, converts the video stream into a video file and sends the video file to a user terminal.
Optionally, the transmitting a video playback instruction to the vehicle-mounted terminal based on the JT1078 protocol, so that the vehicle-mounted terminal transmits a corresponding video stream to a designated port, converts the video stream into a video file, and transmits the video file to a user terminal, includes:
transmitting a video playback instruction to the vehicle-mounted terminal based on a JT1078 protocol, so that the vehicle-mounted terminal transmits a corresponding video stream to a designated port based on an RTP protocol of the JT 1078; after the monitoring program of the port receives the video stream in the RTP data format, converting the video stream in the RTP data format into a video file, and keeping the video file in a preset file space, so that the video file in the preset file space is simultaneously sent to a user terminal.
Optionally, the method further comprises:
setting video playback fast forward multiples through a video playback control command in a JT1078 protocol, so that the vehicle-mounted terminal uploads the corresponding video stream according to the set multiples;
and correcting the decoding time stamp and the display time stamp of the video stream so as to adjust the playing rate of the corrected video stream.
Optionally, the method further comprises:
and if the history data of the remote video information of the vehicle-mounted terminal exists, sending the cached video file to the user terminal.
Optionally, the method further comprises:
if the FTP server is deployed, a video downloading command is sent to the vehicle-mounted terminal based on JT1078 protocol, wherein the downloading command carries related information of a video to be downloaded and related information of the FTP server for receiving the video, so that the vehicle-mounted terminal uploads the downloaded video to the FTP server for receiving the video; and simultaneously, the downloaded video is read in real time in the FTP server, and the read downloaded video is sent to a user terminal.
In yet another aspect, a server includes: a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the remote video downloading method of the vehicle-mounted terminal;
the processor is configured to invoke and execute the computer program in the memory.
The beneficial effects of the invention are as follows:
according to the method and the server for downloading the remote video of the vehicle-mounted terminal, provided by the embodiment of the invention, under the condition that the server is not provided with the FTP server, the video playback video stream is converted into the video file through the video playback request in JT1078, so that a user can download the video, the downloading of the video file can be completed under the condition that the server is not provided with the FTP service, the applicability is improved, and the downloading of the remote video of the vehicle-mounted terminal is more convenient. When the vehicle-mounted terminal uploads the video file, the JT808 server transmits video file data received by the FTP to a user requesting downloading, and when the vehicle-mounted terminal finishes uploading the video file, the user can also download the video file, so that the video downloading efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a remote video downloading method of a vehicle-mounted terminal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
In the remote video downloading method of the vehicle-mounted terminal in the related art, a user generally sends a downloading request to a JT808 gateway, the JT808 gateway realizes a JT1078 protocol, the downloading request is sent to the vehicle-mounted terminal device, and the sent request carries related information of downloading video and related information of an FTP server for receiving video files. After receiving the downloading request, the vehicle-mounted terminal sends the appointed video file to the appointed FTP file server through the FTP, and after the uploading is completed, the JT808 gateway is informed of the completion of the uploading. The JT808 gateway then informs the downloading user to download the video file via HTTP or other means. However, this downloading method must be configured with FTP servers, which would not be able to download the video files without FTP servers; in addition, after the vehicle-mounted video recording file is completely uploaded to the FTP server, the user can download the vehicle-mounted video recording file to the local computer of the user through HTTP or other modes, and the efficiency is low. Therefore, how to conveniently and efficiently realize the downloading of the remote video of the vehicle-mounted terminal becomes a technical problem to be solved in the prior art.
Embodiment one:
in order to at least solve the technical problems set forth in the present invention, an embodiment of the present invention provides a remote video downloading method for a vehicle-mounted terminal.
Fig. 1 is a flow chart of a remote video downloading method of a vehicle-mounted terminal according to an embodiment of the present invention, as shown in fig. 1, where the method provided by the embodiment of the present invention may include the following steps:
s11, receiving a remote video downloading request of the vehicle-mounted terminal, which is sent by the user terminal, wherein the remote video downloading request of the vehicle-mounted terminal carries remote video information of the vehicle-mounted terminal.
In the invention, a server can be defined as an execution main body, and the remote video downloading method of the vehicle-mounted terminal provided by the embodiment of the application is executed.
When a user needs to download the remote video of the vehicle-mounted terminal, the remote video downloading request of the vehicle-mounted terminal can be sent to the server through the user terminal, and the remote video downloading request of the vehicle-mounted terminal carries remote video information of the vehicle-mounted terminal.
S12, judging whether historical data of remote video information of the vehicle-mounted terminal exist.
After receiving the remote video downloading request of the vehicle-mounted terminal, the server checks to determine whether the same remote video information of the vehicle-mounted terminal is downloaded by the user before.
In some embodiments, optionally, further comprising: and if the history data of the remote video information of the vehicle-mounted terminal exists, sending the cached video file to the user terminal.
When the historical data of the remote video information of the vehicle-mounted terminal exists, the cached video file (namely the historical data of the remote video information of the vehicle-mounted terminal) is directly returned to the user through HTTP.
And S13, judging whether the FTP server is deployed or not if the history data of the remote video information of the vehicle-mounted terminal does not exist.
And when the historical data of the remote video information of the vehicle-mounted terminal does not exist, checking whether the FTP server is deployed on the current server.
And S14, if the FTP server is not deployed, transmitting a video playback instruction to the vehicle-mounted terminal based on the JT1078 protocol, so that the vehicle-mounted terminal transmits the corresponding video stream to a designated port, converts the video stream into a video file, and transmits the video file to the user terminal.
In some embodiments, optionally, transmitting a video playback instruction to the vehicle-mounted terminal based on the JT1078 protocol, so that the vehicle-mounted terminal transmits the corresponding video stream to the designated port, converts the video stream into a video file, and transmits the video file to the user terminal, including:
transmitting a video playback instruction to the vehicle-mounted terminal based on the JT1078 protocol, so that the vehicle-mounted terminal transmits a corresponding video stream to a designated port based on the RTP of JT 1078; after receiving the video stream in RTP data format, the monitor program of the port converts the video stream in RTP data format into video file and keeps the video file in preset file space so as to send the video file in preset file space to the user terminal.
For example, when the FTP server is not deployed on the current server, a video playback command in the JT1078 protocol is sent to the vehicle-mounted terminal. After receiving the video playback command, the vehicle-mounted terminal sends the video stream to a port appointed by the server through an RTP protocol of JT 1078. After receiving the video RTP data, the port monitoring program of the server terminal converts the video RTP data into video file data to be stored in the file, and simultaneously informs the downloading program to read the data from the file and send the data to the user, and after the vehicle-mounted terminal sends the complete video data to the server terminal through RTP, if the user downloads the video data at the moment, the data is continuously read from the file and sent to the downloading user, and when the file is read to the tail of the file, the data of the whole file is indicated to be sent to the user, and the downloading is completed. And the file is cached to the server for the next download.
In some embodiments, optionally, further comprising:
setting video playback fast forward multiples through a video playback control command in a JT1078 protocol, so that the vehicle-mounted terminal uploads a corresponding video stream according to the set multiples; correcting the decoding time stamp and the display time stamp of the video stream so as to adjust the playing rate of the corrected video stream.
For example, a fast forward multiple can be set in a video playback control command through JT1078, so that the vehicle-mounted terminal multiple uploads video data, and then the video PTS and DTS are corrected at the server to restore to a video file with a normal rate, so that the purpose of fast downloading video is achieved.
In some embodiments, optionally, further comprising:
if the FTP server is deployed, transmitting a video downloading command to the vehicle-mounted terminal based on JT1078 protocol, wherein the downloading command carries related information of the video to be downloaded and related information of the FTP server for receiving the video, so that the vehicle-mounted terminal uploads the downloaded video to the FTP server for receiving the video; meanwhile, the downloaded video is read in real time in the FTP server, and the read downloaded video is sent to the user terminal.
For example, when the FTP server is deployed in the current server, a video downloading command in the JT1078 protocol is sent to the vehicle-mounted terminal device, where the downloading command carries information about the video to be downloaded and information about the FTP server receiving the video. After receiving the download command sent by the server, the vehicle-mounted terminal equipment starts uploading the appointed video to the appointed FTP server, and sends a command of successful download request to the server, and after receiving the command of successful download request sent by the vehicle-mounted terminal, the server reads video data from the FTP directory of the video, and transmits the read video data to the user. After the vehicle-mounted terminal finishes uploading the video file, the vehicle-mounted terminal sends a file uploading completion notification, and after the server receives the file uploading completion notification, if the user downloading is not finished at this time, the vehicle-mounted terminal continues to read data from the video file in the FTP and send the data to the downloading user, and when the file is read to the tail, the data of the whole file is indicated to be sent to the user, and the downloading is finished. And the files in the FTP are cached in the server for the next download.
According to the remote video downloading method for the vehicle-mounted terminal, provided by the embodiment of the invention, under the condition that the server is not provided with the FTP server, the video playback video stream is converted into the video file through the video playback request in JT1078, so that a user can download the video, the downloading of the video file can be completed under the condition that the server is not provided with the FTP service, the applicability is improved, and the remote video downloading of the vehicle-mounted terminal is more convenient. When the vehicle-mounted terminal uploads the video file, the JT808 server transmits video file data received by the FTP to a user requesting downloading, and when the vehicle-mounted terminal finishes uploading the video file, the user can also download the video file, so that the video downloading efficiency is greatly improved.
Embodiment two:
based on a general inventive concept, the embodiment of the invention also provides a server.
Fig. 2 is a schematic structural diagram of a server according to an embodiment of the present invention, referring to fig. 2, the server according to an embodiment of the present invention includes: a processor 21, and a memory 22 connected to the processor.
The memory 22 is used for storing a computer program, and the computer program is at least used for the remote video downloading method of the vehicle-mounted terminal according to any of the above embodiments;
the processor 21 is used to call and execute a computer program in memory.
Based on one general inventive concept, the embodiments of the present invention also provide a storage medium.
A storage medium storing a computer program, which when executed by a processor, implements the steps of the remote video downloading method of the vehicle-mounted terminal.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (6)
1. The remote video downloading method of the vehicle-mounted terminal is characterized by comprising the following steps of:
receiving a remote video downloading request of a vehicle-mounted terminal sent by a user terminal, wherein the remote video downloading request of the vehicle-mounted terminal carries remote video information of the vehicle-mounted terminal;
judging whether historical data of remote video information of the vehicle-mounted terminal exists or not;
if the history data of the remote video information of the vehicle-mounted terminal does not exist, judging whether an FTP server is deployed or not;
if the FTP server is not deployed, a video playback instruction is sent to the vehicle-mounted terminal based on JT1078 protocol, so that the vehicle-mounted terminal sends the corresponding video stream to a designated port, converts the video stream into a video file and sends the video file to a user terminal.
2. The method of claim 1, wherein the transmitting, based on the JT1078 protocol, a video playback command to the vehicle-mounted terminal, so that the vehicle-mounted terminal transmits the corresponding video stream to a designated port, and converts the video stream into a video file, and transmitting the video file to a user terminal, includes:
transmitting a video playback instruction to the vehicle-mounted terminal based on a JT1078 protocol, so that the vehicle-mounted terminal transmits a corresponding video stream to a designated port based on an RTP protocol of the JT 1078; after the monitoring program of the port receives the video stream in the RTP data format, converting the video stream in the RTP data format into a video file, and storing the video file in a preset file space, so that the video file in the preset file space is simultaneously sent to a user terminal.
3. The method as recited in claim 2, further comprising:
setting video playback fast forward multiples through a video playback control command in a JT1078 protocol, so that the vehicle-mounted terminal uploads the corresponding video stream according to the set multiples;
and correcting the decoding time stamp and the display time stamp of the video stream so as to adjust the playing rate of the corrected video stream.
4. The method as recited in claim 1, further comprising:
and if the history data of the remote video information of the vehicle-mounted terminal exists, sending the cached video file to the user terminal.
5. The method as recited in claim 1, further comprising:
if the FTP server is deployed, a video downloading command is sent to the vehicle-mounted terminal based on JT1078 protocol, wherein the downloading command carries related information of a video to be downloaded and related information of the FTP server for receiving the video, so that the vehicle-mounted terminal uploads the downloaded video to the FTP server for receiving the video; and simultaneously, the downloaded video is read in real time in the FTP server, and the read downloaded video is sent to a user terminal.
6. A server, comprising: a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the remote video downloading method of the vehicle-mounted terminal according to any one of claims 1 to 5;
the processor is configured to invoke and execute the computer program in the memory.
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