CN111698024A - Ship satellite vsat video bandwidth allocation information transmission system and method - Google Patents
Ship satellite vsat video bandwidth allocation information transmission system and method Download PDFInfo
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- CN111698024A CN111698024A CN202010575640.0A CN202010575640A CN111698024A CN 111698024 A CN111698024 A CN 111698024A CN 202010575640 A CN202010575640 A CN 202010575640A CN 111698024 A CN111698024 A CN 111698024A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
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Abstract
The invention discloses a method for transmitting VSAT video bandwidth allocation information of a ship satellite, which comprises the steps of receiving a user side trigger signal, transmitting pre-transmitted information and establishing a corresponding information grade N; the message to be sent is transmitted to an information monitoring unit, and the information monitoring unit generates a bandwidth occupation ratio M according to the information level; the information monitoring unit monitors whether the information grade N is 1 or not, and if not, the next step is executed; the information monitoring unit monitors whether the information grade N is 2 or not, and if not, the next step is executed; and the information monitoring unit monitors whether the information grade N is 3 or not, the data transmission unit generates a real-time full-speed bandwidth sending speed K, whether K M/N is greater than 50 or not is calculated, and if yes, the normal execution is carried out. On one hand, the information is distributed to different levels, and corresponding bandwidth is configured, so that emergency situations can be dealt with in time, on the other hand, the resource distribution is reasonable, and the communication requirements of personnel at all levels can be met during normal use. The invention also discloses a system for transmitting the video bandwidth allocation information of the ship satellite VSAT.
Description
Technical Field
The invention relates to the field of ship satellites, in particular to a system and a method for transmitting vsat video bandwidth allocation information of a ship satellite.
Background
Currently, a marine satellite communication system is a ship radio communication system using a communication satellite as a relay station. The ship has the obvious advantages of global (except south and north polar regions), full time, all weather, stability, reliability, high quality, large capacity, automatic communication and the like, can improve the ship operation and the management efficiency, is closely related to the ship and the shore, and is beneficial to ensuring the life safety of people on the sea. The international maritime satellite communication system (INMARSAT) is one type of mobile services satellite communication system (MSS). It includes communication between mobile stations, between mobile station and fixed station, and between fixed station and public communication network user. The international maritime satellite communication system is the first global mobile services satellite communication system in the world.
As is known, the bandwidth occupied by the video stream of video monitoring is generally relatively large, and prior art 1 discloses a ship satellite communication security system, application number CN201721609793.2, which comprises an instruction system, a depth finder, a GPS system, a weather alarm system, a navigational speed sensor, a central processing unit, a data storage server, a navigational data recorder and a satellite communication system, and the security system can transmit the data in the data storage server to a cloud server in real time through the satellite communication system when a ship navigates. Because the real-time data transmission through the satellite signal can consume a large amount of resources and have higher requirements on equipment, therefore, data comparison and judgment are carried out by the central processing unit through the data acquisition of the depth finder, the GPS system and the meteorological alarm system, when a ship runs in a severe meteorological environment or a deep sea area, data backed up in the navigation data recorder is sent to the cloud server in a real-time data transmission mode, and when the ship normally runs, the data is regularly packaged and sent, so that energy is saved.
The prior art 2 discloses a ship equipment data acquisition and management system based on Beidou satellite communication, which has an application number of CN201910423102.7 and comprises a sensor, a PLC, a network port, an Anybus converter, an Anybus gateway and Beidou satellite communication equipment; this system can carry out real-time supervision to boats and ships equipment operation data, earlier through PLC processing data, reuse field bus transmits switch and big dipper satellite communication equipment, utilizes big dipper satellite to do the transfer, with data transmission to the bank. The system can greatly improve the convenience and reliability of the acquisition of the operation data of the ship equipment, and realizes the integrated management of the ship and the shore.
The following defects exist in the prior art:
problem 1: how to satisfy different levels of transport bandwidth allocation (existing bandwidth is equally divided).
Some things are urgent, so that a large bandwidth is occupied, and other video bandwidths influence emergencies at the moment and cannot deal with the emergencies in time.
Problem point 2: the transmission bandwidth is not set with different modes in a targeted manner, is in a special operation mode, a traffic interconnection mode and the like, and can be allocated with different bandwidths in a targeted manner.
Disclosure of Invention
In order to overcome the defects of the prior art, an object of the present invention is to provide a system and a method for transmitting vsat video bandwidth allocation information of a ship satellite, which can solve the problem that emergency cannot be dealt with in time.
One of the purposes of the invention is realized by adopting the following technical scheme:
a method for transmitting VSAT video bandwidth allocation information of a ship satellite is applied to a VSAT video bandwidth allocation information transmission system of the ship satellite, wherein the VSAT video bandwidth allocation information transmission system of the ship satellite comprises an information monitoring unit, a data transmission unit, an antenna rotary table, a ring focal antenna and a main station satellite, and comprises the following steps:
the method comprises the following steps: receiving a user side trigger signal, transmitting pre-sent information and creating a corresponding information grade N;
step two: the message to be sent is transmitted to an information monitoring unit, and the information monitoring unit generates a bandwidth occupation ratio M according to the information level;
step three: the information monitoring unit monitors whether the information level N is 1, if so, the bandwidth occupation ratio M is increased to be more than 80%, and if not, the next step is executed;
step four: the information monitoring unit monitors whether the information grade N is 2, if so, the distribution width occupation ratio M is 60%, and if not, the next step is executed;
step five: the information monitoring unit monitors whether the information grade N is 3, if so, the distribution width occupation ratio M is 40%, and if not, the step two is returned;
step six: the information monitoring unit checks whether the pre-sent information belongs to the override information for the second time, if so, the step two is returned, and if so, the next step is executed;
step seven: the data transport unit generates a real-time full-speed bandwidth transmission speed K,
calculating whether K M/N is larger than 50, if so, executing normally; if not, converting the video information into voice information.
Further, in the step one, the message with the information level of 1 of the pre-sent information is as follows: distress message and first aid message.
Further, in the step one, the message with the information level of 2 of the pre-sent information is as follows: a leader level message.
Further, in the step one, the message with the information level of 3 of the pre-sent information is as follows: messages are commonly used.
Further, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit searches the information sending end and sends the sending end number to the management end.
Further, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit detects whether there is an emergency message, and if there is an emergency message, the information monitoring unit raises the current information level to level 1.
Further, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time and finds the override information, the information monitoring unit detects whether there is an urgent message, and if not, identifies the current message sending terminal violation and sends the violation to the management terminal.
Further, in the seventh step, when it is detected that the real-time full-speed bandwidth transmission speed K is less than 500KB/S, it is detected whether the pre-transmission information is video information, and if so, the video information is converted into voice information.
Further, in the seventh step, when the video information is converted into the voice information, and the voice information is transmitted, the video information matched with the voice information is continuously transmitted.
The utility model provides a boats and ships satellite VSAT video bandwidth distribution information transmission system, includes information monitoring unit, data transmission unit, antenna revolving stage, ring focus antenna and main website satellite, its characterized in that: the information monitoring unit monitors the information grade of the pre-sent information and allocates corresponding bandwidth according to the information grade, the information monitoring unit is interacted with the data transmission unit, and the ring focal antenna is interacted with the main station satellite.
Compared with the prior art, the invention has the beneficial effects that:
calculating whether K M/N is larger than 50, if so, executing normally; if not, converting the video information into voice information. On one hand, the information is distributed to different grades, corresponding bandwidth is configured, emergency situations can be dealt with in time, on the other hand, resource distribution is reasonable, communication requirements of personnel at all grades can be met during normal use, most importantly, self-adjustment can be carried out according to requirement adaptability, if K M/N is larger than 50, information transmission efficiency is high, requirements are met, if K M/N is smaller than 50, real-time transmission speed is low, and a message mode is converted, so that phase change and speed increase are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a flowchart of a method for transmitting video bandwidth allocation information of a vessel satellite VSAT according to a preferred embodiment of the present invention;
fig. 2 is a block diagram of a video bandwidth allocation information transmission system for a ship satellite VSAT.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, a method for transmitting VSAT video bandwidth allocation information of a ship satellite is applied to a VSAT video bandwidth allocation information transmission system of a ship satellite, and the VSAT video bandwidth allocation information transmission system of a ship satellite comprises an information monitoring unit, a data transmission unit, an antenna turntable, a ring focus antenna and a main station satellite, and comprises the following steps:
the method comprises the following steps: receiving a user side trigger signal, transmitting pre-sent information and creating a corresponding information grade N; preferably, in the first step, the message with the information level of 1 of the pre-sent information is as follows: distress message and first aid message. The message with the information level of 2 of the pre-sent information is as follows: a leader level message. The message with the information level of 3 of the pre-sent information is as follows: messages are commonly used. The problem that different modes are not set in a targeted mode according to the width of the conveying belt is solved, and resource allocation is reasonable.
Step two: the message to be sent is transmitted to an information monitoring unit, and the information monitoring unit generates a bandwidth occupation ratio M according to the information level;
step three: the information monitoring unit monitors whether the information level N is 1, if so, the bandwidth occupation ratio M is increased to be more than 80%, and if not, the next step is executed;
step four: the information monitoring unit monitors whether the information grade N is 2, if so, the distribution width occupation ratio M is 60%, and if not, the next step is executed;
step five: the information monitoring unit monitors whether the information grade N is 3, if so, the distribution width occupation ratio M is 40%, and if not, the step two is returned;
step six: the information monitoring unit checks whether the pre-sent information belongs to the override information for the second time, if so, the step two is returned, and if so, the next step is executed;
preferably, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit searches the information sending end and sends the sending end number to the management end. The management is checked through the message records of the management end, the management efficiency is improved, and the personnel override sending is avoided.
Preferably, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit detects whether there is an emergency message, and if there is an emergency message, the information monitoring unit raises the current information level to level 1.
Preferably, in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit detects whether there is an urgent message, and if not, identifies the current message sending end violation and sends the violation to the management end.
Step seven: the data transport unit generates a real-time full-speed bandwidth transmission speed K,
calculating whether K M/N is larger than 50, if so, executing normally; if not, converting the video information into voice information. On one hand, the information is distributed to different grades, corresponding bandwidth is configured, emergency situations can be dealt with in time, on the other hand, resource distribution is reasonable, communication requirements of personnel at all grades can be met during normal use, most importantly, self-adjustment can be carried out according to requirement adaptability, if K M/N is larger than 50, information transmission efficiency is high, requirements are met, if K M/N is smaller than 50, real-time transmission speed is low, and a message mode is converted, so that phase change and speed increase are achieved.
Specifically, the significance of calculating K × M/N is to solve the difference between the information level and the information transmission efficiency, so that on one hand, disorder caused by self-adjustment of the level by personnel is avoided, on the other hand, the problem of bandwidth waste can be solved, and further, the bandwidth utilization is prevented from being improved by adjusting the level.
In practical application, the ship satellite VSAT video bandwidth allocation information transmission system comprises an audio conversion unit, wherein the audio conversion unit converts current pre-sent audio information into voice information B1 and video information B2; if not, executing the step four; by the method of giving priority to the voice information B1 and giving priority to the video information B2 times, the sending speed of the information can be guaranteed, the level 1 information known by a receiving end can be guaranteed, and the integrity of the information can be guaranteed. Specifically, the data delivery unit detects whether the current network speed is less than 30kb, if so, the audio conversion unit converts the current pre-sent audio information into text information B0, voice information B1 and video information B2, and the sending sequence is as follows: b0> B1> B2.
Preferably, in the seventh step, when it is detected that the real-time full-speed bandwidth transmission speed K is less than 500KB/S, it is detected whether the pre-transmission information is video information, and if so, the video information is converted into voice information. When the video information is converted into the voice information, the matched video information is continuously sent after the voice information is sent. The speed of information transmission is guaranteed, and meanwhile the efficiency of information transmission is guaranteed.
The utility model provides a boats and ships satellite VSAT video bandwidth distribution information transmission system, includes information monitoring unit, data transmission unit, antenna revolving stage, ring focus antenna and main website satellite, its characterized in that: the information monitoring unit monitors the information grade of the pre-sent information and allocates corresponding bandwidth according to the information grade, the information monitoring unit is interacted with the data transmission unit, and the ring focal antenna is interacted with the main station satellite. Ingenious design, strong applicability and convenient popularization.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A method for transmitting VSAT video bandwidth allocation information of a ship satellite is applied to a VSAT video bandwidth allocation information transmission system of the ship satellite, wherein the VSAT video bandwidth allocation information transmission system of the ship satellite comprises an information monitoring unit, a data transmission unit, an antenna rotary table, a ring focal antenna and a main station satellite, and is characterized by comprising the following steps:
the method comprises the following steps: receiving a user side trigger signal, transmitting pre-sent information and creating a corresponding information grade N;
step two: the message to be sent is transmitted to an information monitoring unit, and the information monitoring unit generates a bandwidth occupation ratio M according to the information level;
step three: the information monitoring unit monitors whether the information level N is 1, if so, the bandwidth occupation ratio M is increased to be more than 80%, and if not, the next step is executed;
step four: the information monitoring unit monitors whether the information grade N is 2, if so, the distribution width occupation ratio M is 60%, and if not, the next step is executed;
step five: the information monitoring unit monitors whether the information grade N is 3, if so, the distribution width occupation ratio M is 40%, and if not, the step two is returned;
step six: the information monitoring unit checks whether the pre-sent information belongs to the override information for the second time, if so, the step two is returned, and if so, the next step is executed;
step seven: the data transmission unit generates a real-time full-speed bandwidth sending speed K, whether K M/N is larger than 50 or not is calculated, and if yes, normal execution is carried out; if not, converting the video information into voice information.
2. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the first step, the message with the information level of 1 of the pre-sent information is as follows: distress message and first aid message.
3. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the first step, the message with the information level of 2 of the pre-sent information is as follows: a leader level message.
4. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the first step, the message with the information level of 3 of the pre-sent information is as follows: messages are commonly used.
5. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit searches the information sending end and sends the sending end number to the management end.
6. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the sixth step, when the information monitoring unit checks the pre-sent information for the second time to find the override information, the information monitoring unit detects whether an emergency message exists, and if the emergency message exists, the information monitoring unit raises the current information level to level 1.
7. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the sixth step, when the information monitoring unit checks the pre-sent information for the second time and finds the override information, the information monitoring unit detects whether an urgent message exists, and if not, identifies the current message sending terminal violation and sends the violation to the management terminal.
8. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 1, wherein: in the seventh step, when the real-time full-speed bandwidth sending speed K is detected to be less than 500KB/S, whether the pre-sent information is video information is detected, and if so, the video information is converted into voice information.
9. The method for transmitting the vessel satellite VSAT video bandwidth allocation information according to claim 8, wherein: in the seventh step, when the video information is converted into the voice information, and the voice information is sent, the video information matched with the voice information is continuously sent.
10. The utility model provides a boats and ships satellite VSAT video bandwidth distribution information transmission system, includes information monitoring unit, data transmission unit, antenna revolving stage, ring focus antenna and main website satellite, its characterized in that: the information monitoring unit monitors the information grade of the pre-sent information and allocates corresponding bandwidth according to the information grade, the information monitoring unit is interacted with the data transmission unit, and the ring focal antenna is interacted with the main station satellite.
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