CN115633332A - Vehicle-mounted satellite communication terminal system and communication method under edge unloading - Google Patents
Vehicle-mounted satellite communication terminal system and communication method under edge unloading Download PDFInfo
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- CN115633332A CN115633332A CN202211320236.4A CN202211320236A CN115633332A CN 115633332 A CN115633332 A CN 115633332A CN 202211320236 A CN202211320236 A CN 202211320236A CN 115633332 A CN115633332 A CN 115633332A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Abstract
The invention discloses a vehicle-mounted satellite communication terminal system and a communication method under edge unloading, which are based on a special vehicle-mounted satellite communication terminal system, a drive test service unit for edge unloading calculation, a background special satellite communication control unit and a special satellite communication network.
Description
Technical Field
The invention relates to the field of vehicle-mounted satellite communication terminal application, in particular to a vehicle-mounted satellite communication terminal system and a vehicle-mounted satellite communication method under edge unloading.
Background
Current satellite communication terminal systems typically support voice and short message service functions. As the vehicle-mounted satellite communication terminal system for loading, the vehicle-mounted satellite communication terminal system has the characteristic of high maneuverability due to the fact that the vehicle-mounted satellite communication terminal system can be used for loading, a vehicle-mounted satellite communication terminal user obtains a wider region use range, and therefore a new opportunity is brought for solving the characteristic of low-rate data communication of a current special vehicle-mounted satellite by an edge computing technology. Based on the method, the invention provides a design method of a vehicle-mounted satellite communication terminal system under edge unloading.
Disclosure of Invention
The invention aims at: the invention provides a vehicle-mounted satellite communication terminal system and a communication method under edge unloading, which are used for overcoming the defects in the prior art.
The invention designs a vehicle-mounted satellite communication terminal system under edge unloading, the system comprises a special vehicle-mounted satellite communication terminal system, a drive test service unit for edge unloading calculation, a background special satellite communication command control unit and a special satellite communication network;
the special vehicle-mounted satellite communication terminal system is loaded on a vehicle and is connected with an external camera fixedly arranged on the vehicle, the external camera collects images or videos of a target object, the special vehicle-mounted satellite communication terminal system is in communication connection with a drive test service unit for edge unloading calculation, and the collected images or videos of the target object are transmitted to the drive test service unit for edge unloading calculation;
the drive test service unit for the edge unloading calculation is arranged at a preset position of a target area and used for preprocessing a received image or video of a target object, and the drive test service unit for the edge unloading calculation is in communication connection with the background special satellite communication command unit and transmits the preprocessed image or video of the target object to the background special satellite communication command unit;
the background special satellite communication control unit adopts an image processing algorithm to enhance and brighten the image or video of the target object and visually display the received image or video of the target object;
the special satellite communication network is used for supporting communication connection among the vehicle-mounted satellite communication terminal system, the drive test service unit for edge unloading calculation and the background special satellite communication command control unit.
As a preferred technical scheme of the invention: the special vehicle-mounted satellite communication terminal system is fixedly arranged on a vehicle frame and comprises a power supply, a radio frequency, an antenna, a main control board, a DDR, a CPU and a memory, wherein the radio frequency, the antenna, the main control board, the DDR, the CPU and the memory are respectively connected with the power supply; the radio frequency, the antenna, the main control board, the DDR and the memory are respectively connected with the CPU;
the main control board is provided with at least one camera interface and a wireless communication module, and is connected with an external camera through the camera interface and is in communication connection with a drive test service unit of the edge unloading calculation through the wireless communication module.
As a preferred technical scheme of the invention: the camera interface comprises one or more of HDMI, DVI and VGI interface forms.
As a preferred technical scheme of the invention: the drive test service unit for the edge unloading calculation comprises a communication base station and a data processing server, wherein the communication base station and the data processing server are mutually connected in a communication mode.
As a preferred technical scheme of the invention: the background special satellite communication control unit comprises a satellite communication service management module and a big data service module, wherein the satellite communication service management module is used for carrying out satellite communication and short message communication with a vehicle carrying a special vehicle-mounted satellite communication terminal system, the big data service module is used for receiving an image or video of a target object transmitted by a drive test service unit for edge unloading calculation, and the image or video of the target object is enhanced and brightened by adopting a convolutional neural network algorithm and is visually displayed.
As a preferred technical scheme of the invention: the drive test service unit for the edge unloading calculation preprocesses the received image or video of the target object, wherein the preprocessing comprises the steps of judging whether the size of the image or video of the target object exceeds 100M, if so, performing compression processing, and otherwise, not performing compression; and judging whether to store the image or video of the target object according to a preset instruction, and transmitting the image or video to the background special satellite communication command control unit.
The invention also designs a communication method of the vehicle-mounted satellite communication terminal system based on the edge unloading, aiming at the target area, based on any one vehicle-mounted satellite communication terminal system under the edge unloading, the following steps S1-S5 are executed to complete the acquisition, transmission, processing and visual display of the image or video of the target object in the target area:
step S1: the special vehicle-mounted satellite communication terminal system loaded on the vehicle is started up, a special satellite communication network is accessed, and the special vehicle-mounted satellite communication terminal system is in standby after satellite telephone service can be carried out;
step S2: when the vehicle runs to a target area, an external camera on the vehicle acquires an image or a video of a target object and stores the image or the video in a special vehicle-mounted satellite communication terminal system;
and step S3: when the vehicle runs to the communication range of the drive test service unit for the edge unloading calculation, the special vehicle-mounted satellite communication terminal system establishes a wireless communication link with the drive test service unit for the edge unloading calculation, and transmits the acquired image or video of the target object to the drive test service unit for the edge unloading calculation;
and step S4: the method comprises the following steps that a drive test service unit for edge unloading calculation carries out preprocessing on a received image or video of a target object, wherein the preprocessing comprises the step of judging whether to compress, store and forward the image or video of the target object according to the size of the image or video of the target object and a preset instruction, and the default instruction is no compression, storage and forwarding;
step S5: and the drive test service unit for edge unloading calculation transmits the preprocessed image or video of the target object to the background special satellite communication command and control unit, and the background special satellite communication command and control unit performs enhanced brightening on the received image or video of the target object and performs visual display.
As a preferred technical scheme of the invention: and in the step S5, the drive test service unit for the edge unloading calculation transmits the preprocessed image or video of the target object to the background special satellite communication command unit in one or more communication modes including optical cable transmission and wireless transmission.
Has the beneficial effects that: compared with the prior art, the invention has the advantages that:
the invention designs a vehicle-mounted satellite communication terminal system and a communication method under edge unloading, solves the problem of low-rate data communication (difficult to directly send high-quality pictures and videos through a satellite) of a vehicle-mounted satellite communication terminal in the field of special satellite communication under the existing condition by introducing an edge unloading technology, can improve the transmission rate of satellite communication data, further realize the data transmission capacity of high-quality vehicle-mounted satellite images and vehicle-mounted satellite videos, and can sense the front-end situation of vehicle-mounted satellite communication in a clearer and more visual image and video mode at the rear.
Drawings
FIG. 1 is a schematic diagram of an on-board satellite communication terminal system under edge offload provided in accordance with an embodiment of the invention;
in fig. 1: 1. a dedicated vehicle-mounted satellite communication terminal system; 2. unloading the computed drive test service unit at the edge; 3. a background special satellite communication command control unit; 4. a dedicated satellite communication network;
fig. 2 is a block diagram of a dedicated in-vehicle satellite communication terminal system provided according to an embodiment of the present invention;
fig. 3 is a flowchart of a communication method of an onboard satellite communication terminal system based on edge offload according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, a vehicle-mounted satellite communication terminal system under edge offloading provided by an embodiment of the present invention includes a dedicated vehicle-mounted satellite communication terminal system, a drive test service unit for edge offloading computation, a background dedicated satellite communication command unit, and a dedicated satellite communication network;
the system comprises a special vehicle-mounted satellite communication terminal system, a drive test service unit, an edge unloading calculation unit, a drive test service unit and a drive test service unit, wherein the special vehicle-mounted satellite communication terminal system is fixed in a customized frame adapted to the special vehicle-mounted satellite communication terminal system on the vehicle so as to keep the special vehicle-mounted satellite communication terminal system stable in the vehicle running process, is connected with an external camera fixedly arranged on the vehicle, acquires an image or a video of a target object, is in communication connection with the drive test service unit for edge unloading calculation, and transmits the acquired image or video of the target object to the drive test service unit for edge unloading calculation;
the vehicle is a satellite communication vehicle, and the image or video of the target object is more than 4800 ten thousand pixels.
Referring to fig. 2, the dedicated vehicle-mounted satellite communication terminal system is fixedly mounted on a vehicle frame, and comprises a power supply, and a radio frequency, an antenna, a main control board, a DDR, a CPU, and a memory which are respectively connected with the power supply; the radio frequency, the antenna, the main control board, the DDR and the memory are respectively connected with the CPU; the DDR is one type of memory.
The main control board is connected with an external camera through the camera interface and is in communication connection with a drive test service unit of the edge unloading calculation through the wireless communication module.
In one embodiment, the wireless communication module is in the form of an external USB interface and is used for externally connecting short-distance communication equipment, and when the special vehicle-mounted satellite communication terminal system needs to communicate, the wireless communication module is directly externally connected with the short-distance communication equipment, so that convenient communication is realized.
In one embodiment, the wireless communication module is arranged in the special vehicle-mounted satellite communication terminal system, welded and solidified on the interface of the main control board, meanwhile, the short-distance communication equipment is connected with the interface and fixed in the special vehicle-mounted satellite communication terminal system, so that the integration of the whole terminal is realized, and the appearance is attractive.
The camera interface comprises one or more of HDMI, DVI and VGI interface forms.
The drive test service unit for the edge unloading calculation is arranged at a preset position of a target area and is used for preprocessing the received image or video of the target object, and the drive test service unit for the edge unloading calculation is in communication connection with the background special satellite communication command unit and is used for processing and transmitting the preprocessed image or video of the target object to the background special satellite communication command unit;
the drive test service unit for the edge unloading calculation comprises a communication base station and a data processing server to provide the function of the edge unloading service, wherein the communication base station and the data processing server are mutually connected in a communication way.
In fig. 1, a communication base station of a drive test service unit for edge offload computation provides a function similar to a home router, and mainly functions to establish a wireless data transmission path with a plurality of special vehicle-mounted satellite communication terminal systems and is responsible for receiving image and video data sent by the special vehicle-mounted satellite communication terminal systems; the data processing server of the drive test service unit for edge offload computation is responsible for effectively processing the received image and video data, and comprises the following steps of judging whether the image and video data need to be compressed according to the designation of the special vehicle-mounted satellite communication terminal system in fig. 1: judging whether the size of the image or video of the target object exceeds 100M, if so, performing compression processing, otherwise, not compressing to ensure the visual quality of the image or video; if the time that the special vehicle-mounted satellite communication terminal system stays in the communication range of the drive test service unit calculated by the edge unloading is less than the preset time, only the picture data is transmitted to save the time so as to save the storage space of the data processing server; whether the image and video data are stored in the drive test service unit of the edge unloading calculation and forwarded to the background special satellite communication command and control unit is judged, so that the problem of limitation of storage capacity and CPU calculation capacity of the satellite communication terminal system under the vehicle moving environment of the special vehicle-mounted satellite communication terminal system is solved, and the service function of high-quality image and video data transmission of the special vehicle-mounted satellite communication terminal system is realized.
The background special satellite communication control unit adopts an image processing algorithm to enhance and brighten the image or video of the target object and visually display the received image or video of the target object;
for the background dedicated satellite communication command control unit shown in fig. 1, the command control unit mainly consists of two parts, namely a conventional satellite communication service management module and a big data service module. The background special satellite communication command control unit is directly communicated with the drive test service unit for edge unloading calculation through optical fibers or in other high-quality connection modes, so that the data transmission quality is ensured.
The satellite communication service management is responsible for satellite communication and short message service between special vehicle-mounted satellite communication terminal systems, the big data service module is responsible for processing images sent by a drive test service unit of edge unloading calculation, if the images are shot at night, the images are displayed in an enhanced and bright mode by adopting a convolutional neural network algorithm, visibility is improved, and visual display is carried out.
The special satellite communication network is used for supporting communication connection among the vehicle-mounted satellite communication terminal system, the drive test service unit for edge unloading calculation and the background special satellite communication command control unit.
Referring to fig. 3, the communication method of the vehicle-mounted satellite communication terminal system based on the edge offload according to the embodiment of the present invention, for the target area, based on the vehicle-mounted satellite communication terminal system based on the edge offload, executes the following steps S1 to S5, and completes the acquisition, transmission, processing, and visual display of the image or video of the target object in the target area:
step S1: the special vehicle-mounted satellite communication terminal system loaded on the vehicle is started up, is accessed to a special satellite communication network, and is in standby after satellite telephone service can be carried out;
step S2: when the vehicle runs to a target area, an external camera on the vehicle acquires an image or a video of a target object and stores the image or the video in a special vehicle-mounted satellite communication terminal system;
the target area is an area which is not covered by wireless communication signals of a mobile communication operator, such as a remote area like a mountain forest, a desert and the like with a rare arrival, and an external camera on a vehicle acquires images or videos of a site.
And step S3: when the vehicle runs to the communication range of the drive test service unit for the edge unloading calculation, the special vehicle-mounted satellite communication terminal system establishes a wireless communication link with the drive test service unit for the edge unloading calculation, and transmits the acquired image or video of the target object to the drive test service unit for the edge unloading calculation;
and step S4: the method comprises the steps that a drive test service unit of edge unloading calculation carries out preprocessing on a received image or video of a target object, wherein the preprocessing comprises the step of judging whether to compress, store and forward the image or video of the target object according to the size of the image or video of the target object and a preset instruction, and the default instruction is no compression, storage and forwarding;
step S5: and the drive test service unit for edge unloading calculation transmits the preprocessed image or video of the target object to the background special satellite communication control unit, and the background special satellite communication control unit enhances and brightens the received image or video of the target object and visually displays the image or video.
The background special satellite communication management and control unit processes the image or video from the drive test service unit of the edge unloading calculation through the big data module and then performs visual display, so that the design purpose that a background satellite control center better masters the field situation of the front-end special vehicle-mounted satellite communication terminal system is achieved. Particularly, if the picture is shot at night, the brightening treatment is carried out through a convolutional neural network algorithm; if the video data exceeds 100M, performing packet compression processing to avoid influence on the processing performance of a big data module due to overlarge single file.
And in the step S5, the drive test service unit of the edge unloading calculation transmits the preprocessed image or video of the target object to the background special satellite communication command unit in a communication mode comprising one or more of optical cable transmission and wireless transmission.
In summary, the vehicle-mounted satellite communication terminal system and the communication method under edge offload provided by the invention can solve the problem that the current dedicated vehicle-mounted satellite communication terminal cannot directly transmit high-quality picture and video data to the background satellite communication management command and control unit through the dedicated satellite network. In the method, the calculation and storage capacity of the vehicle-mounted special satellite communication terminal is limited to be transferred to a drive test service unit for edge unloading calculation by designing an edge unloading technical means, and data interaction is carried out between the drive test service unit for edge unloading calculation and a background special satellite communication management command center, so that the design purpose that the background satellite communication management command center can better master the field information of a front-end special vehicle-mounted satellite communication terminal system is achieved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A vehicle-mounted satellite communication terminal system under edge unloading is characterized by comprising a special vehicle-mounted satellite communication terminal system, a drive test service unit for edge unloading calculation, a background special satellite communication command control unit and a special satellite communication network;
the vehicle-mounted satellite communication terminal system is mounted on a vehicle and connected with an external camera fixedly arranged on the vehicle, the external camera collects images or videos of a target object, the special vehicle-mounted satellite communication terminal system is in communication connection with a drive test service unit for edge unloading calculation, and the collected images or videos of the target object are transmitted to the drive test service unit for edge unloading calculation;
the drive test service unit for the edge unloading calculation is arranged at a preset position of a target area and is used for preprocessing the received image or video of the target object, and the drive test service unit for the edge unloading calculation is in communication connection with the background special satellite communication command unit and transmits the preprocessed image or video of the target object to the background special satellite communication command unit;
the background special satellite communication control unit adopts an image processing algorithm to enhance and brighten the image or video of the target object and visually display the received image or video of the target object;
the special satellite communication network is used for supporting the communication connection among the special vehicle-mounted satellite communication terminal system, the drive test service unit for edge unloading calculation and the background special satellite communication command control unit.
2. The edge-off vehicular satellite communication terminal system according to claim 1, wherein the dedicated vehicular satellite communication terminal system is fixedly mounted on a vehicle frame, and comprises a power supply, and a radio frequency, an antenna, a main control board, a DDR, a CPU, and a memory, which are respectively connected to the power supply; the radio frequency, the antenna, the main control board, the DDR and the memory are respectively connected with the CPU;
the main control board is provided with at least one camera interface and a wireless communication module, and is connected with an external camera through the camera interface and is in communication connection with a drive test service unit of the edge unloading calculation through the wireless communication module.
3. The edge-offloaded vehicular satellite communication terminal system of claim 2, wherein the camera interface comprises one or more of HDMI, DVI, VGI interface forms.
4. The edge-offloaded vehicular satellite communication terminal system of claim 1, wherein the drive test service unit for edge-offloaded computation comprises a communication base station and a data processing server, and the communication base station and the data processing server are communicatively connected to each other.
5. The system of claim 1, wherein the background dedicated satellite communication command unit comprises a satellite communication service management module and a big data service module, wherein the satellite communication service management module is configured to perform satellite communication and short message communication with a vehicle carrying the dedicated vehicle-mounted satellite communication terminal system, and the big data service module is configured to receive an image or video of a target object transmitted by the drive test service unit of the edge offload computation, enhance and brighten the image or video of the target object by using a convolutional neural network algorithm, and visually display the image or video.
6. The vehicle-mounted satellite communication terminal system under the edge unloading of claim 1, wherein the drive test service unit for the edge unloading calculation pre-processes the received image or video of the target object, including judging whether the size of the image or video of the target object exceeds 100M, if so, performing compression processing, otherwise, not compressing; and judging whether to store the image or video of the target object according to a preset instruction, and transmitting the image or video to the background special satellite communication command control unit.
7. A communication method based on an on-vehicle satellite communication terminal system under edge unloading is characterized in that the following steps S1-S5 are executed according to the on-vehicle satellite communication terminal system under edge unloading according to any one of claims 1-6 aiming at a target area, so as to complete the acquisition, transmission, processing and visual display of images or videos of a target object in the target area:
step S1: the special vehicle-mounted satellite communication terminal system loaded on the vehicle is started up, a special satellite communication network is accessed, and the special vehicle-mounted satellite communication terminal system is in standby after satellite telephone service can be carried out;
step S2: when the vehicle runs to a target area, an external camera on the vehicle acquires an image or a video of a target object and stores the image or the video in a special vehicle-mounted satellite communication terminal system;
and step S3: when the vehicle runs to the communication range of the drive test service unit for the edge unloading calculation, the special vehicle-mounted satellite communication terminal system establishes a wireless communication link with the drive test service unit for the edge unloading calculation, and transmits the acquired image or video of the target object to the drive test service unit for the edge unloading calculation;
and step S4: the method comprises the following steps that a drive test service unit for edge unloading calculation carries out preprocessing on a received image or video of a target object, wherein the preprocessing comprises the step of judging whether to compress, store and forward the image or video of the target object according to the size of the image or video of the target object and a preset instruction, and the default instruction is no compression, storage and forwarding;
step S5: and the drive test service unit for edge unloading calculation transmits the preprocessed image or video of the target object to the background special satellite communication control unit, and the background special satellite communication control unit enhances and brightens the received image or video of the target object and visually displays the image or video.
8. The communication method according to claim 7, wherein the communication mode in which the drive test service unit of the edge offload computation transmits the image or video of the preprocessed target object to the background dedicated satellite communication command unit in step S5 includes one or more of optical cable transmission and wireless transmission.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116366133A (en) * | 2023-04-06 | 2023-06-30 | 广州爱浦路网络技术有限公司 | Unloading method and device based on low-orbit satellite edge calculation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116366133A (en) * | 2023-04-06 | 2023-06-30 | 广州爱浦路网络技术有限公司 | Unloading method and device based on low-orbit satellite edge calculation |
| CN116366133B (en) * | 2023-04-06 | 2023-10-27 | 广州爱浦路网络技术有限公司 | Unloading method and device based on low-orbit satellite edge calculation |
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