CN113395102B - Self-adaptive satellite communication equipment and link intelligent selection method - Google Patents
Self-adaptive satellite communication equipment and link intelligent selection method Download PDFInfo
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- 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
- H04B7/18545—Arrangements for managing station mobility, i.e. for station registration or localisation
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- H—ELECTRICITY
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- 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
- H04B7/18558—Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations
- H04B7/1856—Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations for call routing
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- 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
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- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
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- 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]
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Abstract
The invention relates to self-adaptive satellite communication equipment and a link intelligent selection method thereof. The self-adaptive satellite communication equipment comprises a plurality of satellite communication monitoring systems, an attitude monitoring system, a link preference selection system and a self-adaptive communication control system. The satellite communication monitoring system is used for analyzing and processing information data such as beam irradiation areas, pointing accuracy, quality factors and the like of various satellite communication modes, and a function of providing real-time accurate basic analysis data for the link preference selection system is achieved; the attitude monitoring system is used for realizing the function of monitoring the communication angles of the satellite communication module in the transverse direction, the longitudinal direction and the like and the communication azimuth attitude information in real time; the self-adaptive satellite communication equipment constructed by the invention can meet the satellite communication requirements of large-scale areas, realize various satellite communication modes, reduce the practical problems of small coverage area and poor communication quality of a single satellite communication mode, improve the satellite communication quality, reduce the cost of satellite communication, is suitable for various user terminal equipment and is suitable for popularization and application.
Description
Technical Field
The invention belongs to the technical field of satellite communication, and particularly relates to self-adaptive satellite communication equipment and a link intelligent selection method.
Background
With the deep advance of marine scientific research, the technology of marine mobile observation platforms is rapidly developed. The marine observation equipment including an underwater glider, an underwater Autonomous Underwater Vehicle (AUV), an Argo buoy and the like can only adopt satellite communication as a communication means due to the application to the environment with extreme communication conditions. At present, communication equipment based on the American Iridium satellite module is widely applied, and the problems of time delay, poor signal, high cost, poor communication quality in China sea area and the like exist in practical use. With the complete successive launching of the Beidou satellite module, the sky satellite module, the sightseeing satellite module and the like in China, more and more ocean equipment users put forward the requirement of applying the satellite communication module in China. With the increasing number of marine observation equipment, the quality reliability and the cost requirement of communication are higher and higher.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the self-adaptive satellite communication equipment and the link intelligent selection method for solving the problems of delay, poor signal, high charge, poor communication quality in the China sea area and the like in the marine equipment communication.
The present invention is achieved as such, and an adaptive satellite communication apparatus characterized in that: the system comprises a plurality of satellite communication monitoring units, an attitude monitoring unit and an adaptive communication control unit.
The multiple satellite communication monitoring units comprise:
and the GPS positioning monitoring module is used for acquiring current GPS positioning information at a fixed frequency.
And the iridium satellite communication monitoring module is used for acquiring communication state information of the iridium satellite at a fixed frequency, referring to the communication quality requirement and sorting the communication state parameter data.
And the Beidou satellite communication monitoring module is used for acquiring Beidou satellite communication state information at a fixed frequency, referring to communication quality requirements and sorting communication state parameter data.
And the satellite communication monitoring module is used for acquiring satellite communication state information at a fixed frequency, referring to communication quality requirements and sorting communication state parameter data.
The satellite communication monitoring data analysis module; the system is used for receiving and comparing parameter data of the GPS positioning monitoring module, the iridium satellite communication monitoring module, the Beidou satellite communication monitoring module and the heaven-through satellite communication monitoring module, and returning communication quality data obtained finally to the self-adaptive communication control unit.
The attitude monitoring unit includes:
and the acceleration monitoring module is used for receiving the real-time acceleration data of the X, Y and Z three-way axes of the terminal equipment.
And the gyroscope monitoring module is used for receiving the real-time data of the angular speeds of the X, Y and Z three-way axes of the terminal equipment.
And the magnetometer monitoring module is used for receiving real-time data of the terminal equipment, including the four-direction included angles between the terminal equipment and the south, the west and the north of the east.
And the attitude data analysis module is used for receiving the data of the acceleration monitoring module, the gyroscope monitoring module and the magnetometer monitoring module, processing the data to obtain attitude data and returning the obtained attitude data to the self-adaptive communication control unit.
The adaptive communication control unit includes:
and the microprocessor module is used for receiving and processing the communication quality data and the attitude data and sending out control information.
And the serial port communication module is connected with the various satellite communication monitoring units, the attitude monitoring unit and the user equipment interface and is used for transmitting the communication quality data and the attitude data to the microprocessor module.
And the CAN communication module is used for connecting a plurality of user equipment.
And the power supply module is used for providing required working voltage for other modules.
The storage module comprises an internal parameter storage module and an external user data transmission buffer storage module, wherein the internal parameter storage module is used for storing configuration information and operation parameters; the external user data transmission buffer storage module is used for buffering external user equipment transmission data to realize a data transmission buffer function.
Compared with the prior art, the self-adaptive satellite communication equipment has the beneficial effects that:
1. the self-adaptive satellite communication equipment can be connected with various satellite communication modules, adopts a plug-in connection mode, can meet the user requirements of independent use of single satellite communication and mixed use of various satellite communications, and improves the expansibility of the satellite communication equipment.
2. The self-adaptive communication control module can realize dynamic judgment of communication quality of various satellites by combining with real-time attitude information, and simultaneously transmits user communication data in a dynamic optimal communication mode, thereby improving the comprehensive quality of satellite communication in severe environment, reducing the quantity of invalid data and lowering cost.
3. The self-adaptive satellite communication equipment can support various connection interface modes, and improves the compatibility of satellite communication.
A link intelligent selection method comprises a satellite communication link index data processing method and an optimal path selection calculation method;
the processing method of the satellite communication link index data comprises the following steps:
firstly, combining data returned to a self-adaptive communication control module by a plurality of satellite communication monitoring modules and attitude monitoring modules for data analysis;
secondly, comparing with the satellite communication quality standard, crossly comparing the communication quality of different satellite communication channels under the current communication attitude again, and finally sequencing to form a dynamic communication link table;
the calculation method for selecting the optimal path comprises the following steps:
firstly, performing data stacking and caching on communication data transmitted by user equipment through an RS232 serial port or a CAN bus;
and secondly, combining a dynamic communication link list obtained by sorting and analyzing by the self-adaptive communication control module, popping and packaging the user communication data according to the maximum data packet allowed by the current optimal path, sending the data item by item to a satellite communication channel, circularly performing the process again until all the cache data of the user stack are sent, and finally returning the cache data to the user equipment to finish the task feedback information.
Drawings
The figure is a hardware composition diagram of the adaptive satellite communication equipment.
The second figure is a flow chart of the link intelligent selection method.
Fig. three is a structure diagram of a monitoring unit for various satellite communications.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to solve the problems of delay, poor signal, high charge, poor communication quality in China sea area and the like in the communication of marine equipment, the invention particularly provides a self-adaptive satellite communication device and a link intelligent selection method, and in order to further explain the structure of the invention, the detailed description combined with the attached drawings is as follows:
example one
An adaptive satellite communication device includes a plurality of satellite communication monitoring units, an attitude monitoring unit, and an adaptive communication control unit.
As shown in fig. 3, the multiple satellite communication monitoring units include a GPS positioning monitoring module, a Beidou satellite communication monitoring module, an iridium satellite communication monitoring module, an aerospace satellite communication monitoring module, and a satellite communication monitoring data analysis module.
And the GPS positioning monitoring module is used for acquiring current GPS positioning information at a fixed frequency, arranging effective data and transmitting the effective data back to the satellite communication monitoring data analysis module in real time. The module adopts a ublox-GPS chip as a core acquisition component, and is independently developed on the basis of combining an STM32F1 series platform control chip, a signal noise reduction circuit, an amplifying circuit and antenna management.
And the Beidou satellite communication monitoring module is used for acquiring Beidou satellite communication state information at a fixed frequency, referring to communication quality requirements, arranging communication state parameters and transmitting Beidou positioning information and Beidou communication state data back to the satellite communication monitoring data analysis module in real time. This module adopts hua da beidou new generation HD8040 chip as the core and gathers the part, combines STM32F1 series platform control chip, signal to fall circuit, amplifier circuit and antenna management's basis and independently develops on.
And the iridium satellite communication monitoring module is used for acquiring iridium satellite communication state information at a fixed frequency, referring to the communication quality requirement, sorting the communication state parameters and transmitting the communication state parameters back to the satellite communication monitoring data analysis module in real time. The module adopts a 9523 communication module as a core acquisition component, and is independently developed on the basis of combining an STM32F1 series platform control chip, a signal noise reduction circuit, an amplifying circuit and antenna management.
And the satellite communication monitoring module is used for acquiring satellite communication state information at fixed frequency, sorting communication state parameters according to communication quality requirements, and transmitting the communication state parameters back to the satellite communication monitoring data analysis module in real time. The module adopts an antenna communication module chip as a core acquisition component, and is independently developed on the basis of combining an STM32F1 series platform control chip, a signal noise reduction circuit, an amplification circuit and antenna management.
The satellite communication monitoring data analysis module; the system is used for carrying out statistical analysis, standard comparison, cross comparison and other processing processes on data of the GPS positioning monitoring module, the iridium satellite communication monitoring module, the Beidou satellite communication monitoring module and the heaven-through satellite communication monitoring module, and finally returning communication quality data to the self-adaptive communication control module. The module adopts a comprehensive multi-criterion weighted channel priority algorithm to analyze and judge the monitoring data, and the module can autonomously select the optimal communication channel.
The attitude monitoring unit includes: the device comprises an acceleration monitoring module, a gyroscope monitoring module, a magnetometer monitoring module and an attitude data analysis module.
The acceleration monitoring module is used for monitoring and returning real-time acceleration data of X, Y and Z three-dimensional axes to the attitude data analysis module; the gyroscope monitoring module is used for monitoring and returning real-time data of X, Y and Z three-way axial angular velocities to the attitude data analysis module; the magnetometer monitoring module is used for monitoring and returning real-time data of the equipment and the four-way included angles of the southeast, the west and the north to the attitude data analysis module;
and the attitude data analysis module is used for carrying out processing processes such as filtering, noise reduction, iterative filtering, analysis and calculation on the acceleration, the gyroscope and the magnetometer monitoring module data through an attitude data analysis algorithm and returning finally obtained attitude data to the self-adaptive communication control module.
The self-adaptive communication control unit comprises a microprocessor module, a serial port communication module, a CAN communication module, a power supply module and a storage module.
And the microprocessor module is the core of the adaptive satellite communication equipment and is used for realizing data transmission and controlling other modules.
The serial port communication module, in this embodiment, is a multi-channel standard RS232 serial port connected with the microprocessor module, and is used to connect a plurality of satellite communication modules, a plurality of attitude monitoring module sensors, and a user equipment interface.
And the CAN communication module is used for connecting a plurality of user equipment.
And the power supply module is used for providing required working voltage for other modules.
The storage module comprises an internal parameter storage module and an external user data transmission buffer storage module, wherein the internal parameter storage module is used for storing configuration information and operation parameters; and the external user data transmission buffer storage module is used for buffering the transmission data of the external user equipment to realize the data transmission buffer function.
Example two
A link intelligent selection method comprises a satellite communication link index data processing method and an optimal path selection calculation method;
the processing method of the satellite communication link index data comprises the following steps:
firstly, data returned to the self-adaptive communication control module by the various satellite communication monitoring modules and the attitude monitoring module are combined to analyze the data;
secondly, comparing with the satellite communication quality standard, crossly comparing the communication quality of different satellite communication channels under the current communication attitude again, and finally sequencing to form a dynamic communication link table;
the optimal path selection calculation method comprises the following steps:
firstly, carrying out data FIFO principle caching on communication data transmitted by user equipment through an RS232 serial port or a CAN bus;
and secondly, combining a dynamic communication link list obtained by the arrangement and analysis of the self-adaptive communication control module, packaging the user communication data according to the maximum data packet allowed by the current optimal path by an FIFO principle, sending the user communication data to a satellite communication channel one by one, circularly performing the process again until all the cache data of the user stack are sent, and finally returning the cache data to the user equipment to finish the task feedback information.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. An adaptive satellite communications device, characterized by: the system comprises a plurality of satellite communication monitoring units, an attitude monitoring unit and a self-adaptive communication control unit;
the multiple satellite communication monitoring units comprise:
the GPS positioning monitoring module is used for acquiring current GPS positioning information at a fixed frequency;
the iridium satellite communication monitoring module is used for acquiring communication state information of an iridium satellite at a fixed frequency, referring to communication quality requirements and sorting communication state parameter data;
the Beidou satellite communication monitoring module is used for acquiring Beidou satellite communication state information at a fixed frequency, referring to communication quality requirements and sorting communication state parameter data;
the satellite communication monitoring module is used for acquiring satellite communication state information at a fixed frequency, referring to communication quality requirements and sorting communication state parameter data;
the satellite communication monitoring data analysis module; the system comprises a GPS positioning monitoring module, an iridium satellite communication monitoring module, a Beidou satellite communication monitoring module and a heaven-through satellite communication monitoring module, wherein the system is used for receiving and comparing parameter data of the GPS positioning monitoring module, the iridium satellite communication monitoring module, the Beidou satellite communication monitoring module and the heaven-through satellite communication monitoring module, and returning communication quality data obtained finally to a self-adaptive communication control unit;
the attitude monitoring unit includes:
the acceleration monitoring module is used for receiving real-time acceleration data of X, Y and Z three-direction axes of the terminal equipment;
the gyroscope monitoring module is used for receiving real-time data of X, Y and Z three-way axial angular velocities of the terminal equipment;
the magnetometer monitoring module is used for receiving real-time data of four-way included angles between the terminal equipment and the south, the east, the west and the north;
the attitude data analysis module is used for receiving the data of the acceleration monitoring module, the gyroscope monitoring module and the magnetometer monitoring module, processing the data to obtain attitude data and returning the obtained attitude data to the self-adaptive communication control unit;
the adaptive communication control unit includes:
the microprocessor module is used for receiving and processing the communication quality data and the attitude data and sending control information;
the serial port communication module is connected with the various satellite communication monitoring units, the attitude monitoring unit and the user equipment interface and is used for transmitting the communication quality data and the attitude data to the microprocessor module;
the CAN communication module is used for connecting a plurality of user equipment;
the power supply module is used for providing required working voltage for other modules;
the storage module comprises an internal parameter storage module and an external user data transmission buffer storage module, wherein the internal parameter storage module is used for storing configuration information and operation parameters; the external user data transmission buffer storage module is used for buffering the data transmitted by the external user equipment to realize the function of sending data buffer.
2. A link intelligent selection method based on the self-adaptive satellite communication equipment in claim 1 comprises a satellite communication link index data processing method and an optimal path selection calculation method;
the processing method of the satellite communication link index data comprises the following steps:
firstly, combining data returned to a self-adaptive communication control module by a plurality of satellite communication monitoring modules and attitude monitoring modules for data analysis;
secondly, comparing with the satellite communication quality standard, crossly comparing the communication quality of different satellite communication channels under the current communication attitude again, and finally sequencing to form a dynamic communication link table;
the calculation method for selecting the optimal path comprises the following steps:
firstly, performing data stacking and caching on communication data transmitted by user equipment through an RS232 serial port or a CAN bus;
and secondly, combining a dynamic communication link table obtained by the arrangement and analysis of the self-adaptive communication control module, popping and packaging the user communication data according to the maximum data packet allowed by the current optimal path, sending the data item by item to a satellite communication channel, circularly performing the process again until all the cache data of the user stack are sent, and finally returning the data to the user equipment task ending feedback information.
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| CN111416655A (en) * | 2020-04-07 | 2020-07-14 | 南京邮电大学 | Low-orbit satellite routing improvement method based on virtual topology |
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