CN115412151A - Satellite communication method and device and station control equipment - Google Patents
Satellite communication method and device and station control equipment Download PDFInfo
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- CN115412151A CN115412151A CN202210916418.1A CN202210916418A CN115412151A CN 115412151 A CN115412151 A CN 115412151A CN 202210916418 A CN202210916418 A CN 202210916418A CN 115412151 A CN115412151 A CN 115412151A
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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
- H04B7/18513—Transmission in a satellite or space-based system
Abstract
The embodiment of the invention provides a satellite communication method, a satellite communication device and station control equipment, wherein the method is applied to the station control equipment; the method comprises the following steps: the longitude and latitude information sent by the antenna controller is subjected to first conversion and then sent to a first modem; receiving parameters and polarization information output by the first modem according to the longitude and latitude information; second conversion is carried out on the receiving parameters and the polarization information, and then the receiving parameters and the polarization information are sent to an antenna controller; the antenna controller is used for adjusting the receiving polarization and feeding back signal locking state information; the first modulation and demodulation controller is used for outputting modulation information to the satellite antenna assembly when the antenna controller is determined to be in a normal working state according to the signal locking state information. The embodiment of the invention realizes the communication between the antenna controller adapted to the ku frequency band in the original vehicle-mounted satellite communication system and the first modulation and demodulation controller adapted to the broadband satellite, thereby realizing the addition of the function of communicating with the broadband satellite in the original vehicle-mounted satellite communication system.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a satellite communication method, a satellite communication device and station control equipment.
Background
The broadband satellite adopts various new technologies such as frequency reuse, multipoint wave beams and the like, the communication capacity is dozens of times higher than that of a conventional satellite (a satellite communication system under the condition of single large wave beam coverage), compared with the conventional satellite, the unit bandwidth cost is lower, the receiving and transmitting gain is higher, and stronger communication capacity can be obtained under the same conditions (the antenna aperture is the same, and the power amplification power is the same).
At present, the field of emergency communication is provided with a plurality of emergency satellite communication vehicles, and a vehicle-mounted conventional Ku frequency band satellite communication system is configured to serve as a main relay return means, but the emergency satellite communication system does not have the broadband satellite application capability. How to update and reform the conventional satellite communication system, realize the quick switching between broadband satellite and the conventional satellite system and use, can avoid the asset to construct repeatedly, improve the prerequisite of the utilization ratio of current equipment, further promote satellite broadband communication guarantee ability, application prospect is wide.
Because the working frequency bands of the Ku frequency band broadband satellite and the conventional Ku frequency band satellite are overlapped, in principle, the satellite antenna, the antenna controller, the satellite low-noise receiver, the power amplifier and other devices in the conventional satellite communication system can be shared with the broadband satellite for use.
However, in practical applications, because the operation mechanisms of the broadband satellite and the conventional satellite are different greatly, the antenna controller, the beacon receiver and other devices in the conventional satellite communication system cannot directly meet the use requirements of the broadband satellite.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a satellite communication method and a corresponding satellite communication apparatus that overcome or at least partially solve the above problems.
In order to solve the above problems, the embodiment of the invention discloses a satellite communication method, which is applied to station control equipment; the station control equipment is connected with the antenna controller and the first modem; the first modem and the antenna controller are connected with a satellite antenna assembly; the method comprises the following steps:
carrying out first conversion on longitude and latitude information sent by an antenna controller and sending the longitude and latitude information to a first modem;
receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
second conversion is carried out on the receiving parameters and the polarization information, and then the receiving parameters and the polarization information are sent to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna assembly according to the receiving parameters and the polarization information and feeding back signal locking state information;
sending the signal lock status information to the first modem; the first modulation and demodulation controller is used for outputting modulation information to the satellite antenna component when the antenna controller is determined to be in a normal working state according to the signal locking state information;
the first modem is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
Optionally, when it is determined that the antenna controller is in a normal operating state, sending survival information to the first modem according to a preset frequency; and when the first modem cannot receive the survival information within preset time, stopping outputting the modulation information.
Optionally, the method further comprises:
receiving a local oscillator frequency adjustment request sent by the first modem; the local oscillator frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
sending the local oscillator frequency adjustment request to the satellite antenna assembly; and the satellite antenna assembly is used for responding to the local oscillator frequency adjustment request after the first conversion and determining the local oscillator frequency of the satellite antenna assembly.
Optionally, the station control device is connected with a beacon receiver; after the sending the signal lock state information to the first modem, the method further comprises:
receiving a satellite aiming instruction sent by the beacon receiver;
generating a working frequency request according to the satellite aiming instruction and a preset second data table;
transmitting the operating frequency request to the beacon receiver; the beacon receiver is used for responding to the working frequency request and determining a receiving frequency point;
receiving the reception level and the beacon lock state fed back by the beacon receiver.
Optionally, the first conversion is performed according to a binary synchronous communication protocol;
the second conversion is a conversion according to the opemip standard protocol.
Optionally, the station control device is connected to the first modem and the second modem through an ethernet switch;
the station control device is in communication with at most one of the first modem and second modem connections;
and the second modem is adapted to the Ku frequency band non-broadband satellite.
Optionally, the satellite antenna assembly includes a satellite antenna, a low noise receiver connected to the satellite antenna, and a satellite power amplifier;
the satellite antenna is connected with the antenna controller;
the low-noise receiver is connected with the beacon receiver, the first modulation and demodulation controller and the second modulation and demodulation controller;
the satellite power amplifier is connected with the first modulation and demodulation controller and the second modulation and demodulation controller;
the satellite antenna, the low-noise receiver and the satellite power amplifier are matched with the Ku frequency band non-broadband satellite.
The embodiment of the invention also discloses a satellite communication device which is positioned in the station control equipment; the station control equipment is connected with the antenna controller and the first modem; the first modem and the antenna controller are connected with a satellite antenna assembly; the device comprises:
the latitude and longitude information sending module is used for carrying out first conversion on the latitude and longitude information sent by the antenna controller and then sending the latitude and longitude information to the first modem;
the polarization information receiving module is used for receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
the polarization information forwarding module is used for performing second conversion on the receiving parameters and the polarization information and then sending the receiving parameters and the polarization information to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna assembly according to the receiving parameters and the polarization information and feeding back signal locking state information;
a signal locking state sending module, configured to send the signal locking state information to the first modem; the first modulation and demodulation controller is used for outputting modulation information to the satellite antenna component when the antenna controller is determined to be in a normal working state according to the signal locking state information;
the first modem is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
The embodiment of the invention also discloses an electronic device, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the satellite communication method are realized.
The embodiment of the invention also discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the satellite communication method when being executed by a processor.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the existing vehicle-mounted satellite communication system framework is modified, the first modem adaptive to the broadband satellite is added, the first modem is connected with the satellite antenna assembly of the vehicle-mounted satellite communication system, the station control equipment is added to realize the connection and communication between the first modem and the antenna controller in the original vehicle-mounted satellite system, the first modem controls the antenna controller to work, and the communication with the broadband satellite is realized under the condition of not modifying the antenna control in the original vehicle-mounted satellite communication system.
Drawings
FIG. 1 is a block diagram of a satellite communications system of the present invention;
FIG. 2 is a flow chart of steps in a method of satellite communications according to an embodiment of the present invention;
FIG. 3 is a flow chart of steps in another embodiment of a method of satellite communication in accordance with the present invention;
FIG. 4 is a diagram illustrating an instruction format according to the present invention;
FIG. 5 is a schematic diagram of a logical structure of a protocol stack provided by the present invention;
FIG. 6 is a flow chart of a process provided by the present invention;
fig. 7 is a block diagram of a satellite communication device according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a satellite communications system architecture diagram of the present invention is shown. The satellite system comprises a station control device 101, an antenna controller connected with the station control device 101, a first modem 103, a second modem 104, and a satellite antenna assembly 105 connected with the first modem 103, the second modem 104, and the antenna controller, wherein the station control device 101 is connected with the first modem 103 through an ethernet switch 106.
The antenna controller, the satellite antenna assembly 105 and the second modem 104 are components of a vehicle-mounted satellite system in an existing emergency satellite communication vehicle. Because the broadband satellite adopts the multi-spot beam covering technology, the polarization and the frequency of adjacent spot beams are different. In the related art, the emergency satellite vehicle has a beam crossing condition because the working place is not fixed. Therefore, the method needs to keep an interactive state with a broadband satellite, otherwise, once the beam range is changed, the method cannot be used for network access due to the problems of time slot allocation, clock synchronization and the like. If the broadband satellite communication terminal has the capability of keeping interactive communication with a broadband satellite, the antenna controller is required to support an OpenAMIP protocol, keep communication with a broadband satellite modem in real time and automatically switch polarization. Because the existing antenna controller of the emergency vehicle does not support the protocol, the emergency vehicle cannot communicate with a broadband satellite modem in real time, cannot obtain geographical position information, cannot automatically control antenna switching polarization, and cannot normally access the network of the emergency satellite communication vehicle.
According to the embodiment of the invention, the station control device 101 and the first modem 103 are added in the original vehicle-mounted satellite system, so that the original vehicle-mounted satellite system can communicate with the broadband satellite in the ku frequency band, meanwhile, the second modem 104 in the original vehicle-mounted satellite system is reserved, so that the communication between the original vehicle-mounted satellite system and the non-broadband satellite (the satellite communication system under the single large beam coverage condition) can be realized, the station control device 101 forwards data transmitted among the antenna controller, the satellite antenna assembly 105 and the second modem 104 according to the working flow of the original vehicle-mounted satellite system, and the description of the embodiment of the invention is omitted. The following further describes a communication flow with a broadband satellite according to an embodiment of the present invention based on the satellite communication system in fig. 1.
Referring to fig. 2, a flowchart of steps of an embodiment of a satellite communication method of the present invention is shown, which is applied to a station control device 101, where the station control device 101 is connected to an antenna controller and a first modem 103; the first modem 103, the antenna controller and the satellite antenna assembly 105 are connected; the method specifically comprises the following steps:
the first modem 103 may initiate a latitude and longitude obtaining request, the station control device 101 converts the latitude and longitude obtaining request into a latitude and longitude obtaining instruction that can be recognized by the antenna controller, and the antenna controller can recognize the latitude and longitude obtaining instruction and feed real-time latitude and longitude information of itself back to the station controller.
The station control device 101 may establish a TCP connection with the first modem 103 through the ethernet switching device and transmit latitude and longitude information to the first modem 103 through the TPC connection.
Since the antenna controller cannot support the information transmission protocol used by the first modem 103, the station control device 101 needs to perform a first conversion on the latitude and longitude information sent by the antenna controller, so as to send the latitude and longitude information to the first modem 103 and be recognized by the first modem 103.
the first modem 103 determines the receiving parameters and the polarization information of the antenna controller according to the longitude and latitude information and according to a preset rule, where the preset rule is a receiving parameter and polarization information determination rule of a broadband satellite modem for the antenna controller in the prior art, and details of the embodiment of the present invention are not repeated.
the station control apparatus 101, upon receiving the reception parameter and the polarization information transmitted from the first modem 103, transmits the reception parameter and the schedule information to the antenna controller and is recognized by the antenna controller. The second conversion is the protocol inverse of the first conversion.
After receiving the receiving parameters and polarization information, the antenna controller can adjust its own receiving polarization (e.g., horizontal polarization, vertical polarization, circular polarization, etc.) according to the receiving parameters and polarization information. And feeds back the signal locking state information to the station control device 101, and the station control device 101 can determine whether the antenna controller successfully performs signal locking according to the signal locking state information.
the first modem 103 is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
The station control device 101 can perform the second conversion on the signal lock state information and then send the signal lock state information to the first modem 103, and the first modem 103 can determine whether the antenna controller is in a normal operating state based on the signal lock state information, and if the antenna controller is in the normal operating state, the first modem 103 outputs modulation information to the satellite antenna assembly 105 and sends the modulation information through the satellite antenna assembly 105, so as to implement communication with the broadband satellite.
In the embodiment of the invention, the existing vehicle-mounted satellite communication system framework is modified, the first modem 103 adaptive to a broadband satellite is added, the first modem 103 is connected with the satellite antenna assembly 105 of the vehicle-mounted satellite communication system, and the station control device 101 is added to realize that the first modem 103 is connected and communicated with the antenna controller in the original vehicle-mounted satellite system, so that the first modem 103 controls the antenna controller to work, and the communication with the broadband satellite is realized under the condition of not modifying the antenna control in the original vehicle-mounted satellite communication system.
As shown in fig. 1, the station control device 101 is connected to a first modem 103 and a second modem 104 through an ethernet switch; the station control device 101 communicates with at most one of the first modem 103 and the second modem 104; the station control device 101 is provided with a power supply switching module, and one of the first modem 103 and the second modem 104 is in a power-on working state by controlling the power supply switching module, so that one of the first modem 103 and the second modem 104 is connected with the satellite antenna assembly 105 and the antenna controller. The first modem 103 is adapted to the ku band broadband satellite such that upon power up of the first modem 103, communication with the ku band broadband satellite is achieved. The second modem 104 is adapted to the Ku-band non-broadband satellite, so that when the second modem 104 is powered on, communication with the Ku-band non-broadband satellite is realized, and thus the satellite communication system provided by the embodiment of the invention can realize a multi-mode satellite communication mode, and the satellite communication mode is switched by electrically switching the modems.
The satellite antenna assembly 105 comprises a satellite antenna 1051, a low-noise receiver 1052 connected with the satellite antenna 1051 and a satellite power amplifier 1053; the satellite antenna 1051 is connected with the antenna controller; the low noise receiver 1052 is connected to the beacon receiver 107, the first modem controller, and the second modem 104; the satellite power amplifier 1053 is connected with the first modulation and demodulation controller and the second modem 104; the satellite antenna 1051, the low noise receiver 1052 and the satellite power amplifier 1053 are adapted to a Ku frequency band non-wideband satellite.
In addition, the satellite communication system provided by the embodiment of the present invention is further provided with a spectrum analyzer 108, which is used for monitoring the actually received satellite signal.
Referring to fig. 3, a flowchart of steps of another embodiment of a satellite communication method according to the present invention is shown, and is applied to the station control device 101, where the embodiment of the present invention specifically includes the following steps:
referring to fig. 4, a schematic diagram of an instruction format provided by the present invention is shown; the command format between the antenna controller and the station control device 101 is shown in fig. four: the command at the start of STX is sent by the station control apparatus 101, and the commands at the start of ACK and NAK are feedback from the antenna controller. Where ACK is a normal command acknowledgement and NAK is a received command that is incorrect or undefined not to be executed. ADDRESS is the ADDRESS of the antenna controller 102, COMMAND is the specific COMMAND, D1, D2 \ 8230, COMMAND parameters ETX is the end bit, CHKSUM is the check bit. Through the format instruction, mutual communication between the station control device 101 and the antenna controller is realized, so that the station control device 101 can receive longitude and latitude information sent by the antenna controller.
Referring to fig. 5, a schematic diagram of a logical structure of a protocol stack provided by the present invention is shown;
the broadband satellite modem (the first modem 103) is connected with the station control device 101 through a standard ethernet interface, the interface follows the openmip standard protocol, both parties perform message interaction through the TCP protocol, and the message content is in an ASCII mode. Wherein the satellite modem acts as a TCP client and the station control device 101 acts as a server for TCP. The station control device 101 is connected with the antenna controller through an RS422/232 interface, the interface follows the binary synchronous communication protocol (BISYNC) of IBM, the message content is in an ASCII manner, 1 start bit, 8 data bits (7-bit ASCII,1 bit is check), and 1 stop bit.
Further, the interactive communication command format between the satellite modem and the station control device 101 is: upper case commands indicate the satellite modem to the station control device 101 and lower case commands indicate the station control device 101 to the satellite modem. If the parameter ranges are outside the definition of the antenna controller (e.g., the antenna or hardware capability limits of the antenna controller), the antenna controller sends a corresponding command to inform the broadband satellite modem via the station control device 101.
As can be seen from the above, the station control device 101 needs to convert the latitude and longitude information according to the binary synchronous communication protocol, that is, convert the MODEM-ACU information into an ACU message, and then send the ACU message to the first MODEM 103 and be recognized by the first MODEM 103.
as shown in fig. 5, the second conversion is a conversion according to the opemip standard protocol, and converts ACU information into a MODEM-ACU message.
in practical applications, the station control device 101 sends a star finding request to the antenna controller after receiving a signal locking state fed back by the antenna controller, and the antenna controller executes corresponding operations after responding to the star finding request. The station control device 101 may also send an antenna deployment instruction, an antenna stow instruction, etc. to the antenna controller.
The station control device 101 may further send a local oscillation frequency instruction to the low noise receiver 1052, where the low noise receiver 1052 is configured to set its own local oscillation frequency according to the local oscillation frequency instruction.
After determining that the antenna controller is in a normal operating state, the station control device 101 sends keep alive (keepalive) information according to the evaluation rate matched with the first modem 103, so that the first modem 103 determines whether the antenna controller is in the normal operating state, and in practical applications, the station control device 101 may send the keep alive information to the first modem 103 according to a frequency of 10 seconds/time. When the first modem 103 fails to receive the survivability information and determines that the antenna controller is in an abnormal state and is not operating properly, the first modem 103 stops outputting information (e.g., modulated information) to the satellite antenna assembly 105.
Similarly, when the first modem 103 cannot receive the alive message within a predetermined time, it stops receiving the message to be demodulated and outputting the demodulated message.
In an optional embodiment of the invention, the method further comprises:
receiving a local oscillation frequency adjustment request sent by the first modem 103; the local oscillator frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
sending the local oscillator frequency adjustment request to the satellite antenna assembly 105; the satellite antenna assembly 105 is configured to determine a local oscillation frequency of the satellite antenna assembly in response to the local oscillation frequency adjustment request after the first conversion.
By forwarding the local oscillation frequency adjustment request sent by the first modem 103 to the satellite antenna assembly 105, the station control device 101 can adjust the local oscillation frequency of the low noise receiver 1052 in the satellite antenna assembly 105 according to the local oscillation frequency adjustment request, so as to implement switching of the local oscillation frequency of the low noise receiver 1052 by the first modem 103.
In a specific implementation, the broadband modem determines an operating voltage of the low-noise receiver 1052 from the longitude and latitude information obtained from the antenna controller and a data table (a first data table) built therein, and generates a local oscillation frequency setting instruction based on the operating voltage. The device sends a local oscillation frequency setting instruction to the low-noise receiver 1052, so as to adjust the working voltage (13 v/dc voltage or 18 v/dc voltage) of the low-noise receiver 1052, thereby achieving the purpose of switching local oscillation.
In an alternative embodiment of the present invention, the station control device 101 is connected to a beacon receiver 107; after the sending the signal lock status information to the first modem 103, the method further comprises:
receiving a satellite aiming instruction sent by the beacon receiver 107;
generating a working frequency request according to the satellite aiming instruction and a preset second data table;
transmitting the operating frequency request to the beacon receiver 107; the beacon receiver 107 is configured to respond to the working frequency request and determine a receiving frequency point;
the reception level fed back by the beacon receiver 107 and the beacon lock state are received.
The station control device 101 compares the acquired reception level with the lock level, and suspends the satellite operation if the reception level is greater than the lock level, and stays in the lock state.
The station control equipment 101 is connected with the beacon receiver 107 through an RS232/RS422 interface, the beacon receiver 107 can perform communication at a rate of lowest 1200sps and highest 19200sps every 5 seconds, 8 data bits and 1 check bit adopt non-encrypted ASCII codes, and a signaling returned by the beacon machine is an ACK message or a NACK message. The first bit of ACK is the norm, the second bit starts with the parameter bit, the second to last bit is the check bit, the last bit is EOT, and the flag ends.
In the following, a specific example is further used to describe the embodiment of the present invention, and referring to fig. 6, a workflow diagram provided by the present invention is shown, which includes the following steps:
in step 601, the first modem 103 sends a TCP connection request to the station control device 101.
In step 602, the station control device 101 establishes a TCP connection with the first modem 103.
Step 603, the first modem 103 sends a request for acquiring GPS (Global Positioning System) information to the station control device 101 every 30 seconds, where the GPS information includes, but is not limited to, latitude and longitude information.
In step 604, the station control device 101 converts the request for obtaining GPS information and forwards the converted request to the antenna controller.
In step 605, the antenna controller responds to the acquire GPS information request to send GPS information to the station control device 101.
In step 606, the station control device 101 forwards the GPS information to the first modem 103.
In step 607, the first modem 103 sends a request for acquiring the antenna controller state to the station control device 101 every 10 seconds, where the antenna controller state includes the signal locking state information.
In step 608, the station control device 101 converts the request for obtaining the state of the antenna controller and forwards the converted request to the antenna controller.
In step 609, the antenna controller responds to the request for obtaining the antenna controller status to send the antenna controller status to the station control device 101.
At step 6010, the station control apparatus 101 forwards the antenna controller status to the first modem 103.
Step 6011, the station control device 101 sends a star finding instruction to the antenna controller, and the antenna controller can respond to the star finding instruction and perform a corresponding operation.
Step 6012, the station control device 101 sends an instruction of setting a local oscillation frequency to the low noise receiver 1052. The low-noise receiver 1052 sets its own local oscillation frequency in accordance with the set local oscillation frequency instruction.
Step 6013, the station control device 101 sends a beacon frequency setting instruction to the beacon receiver 107. The beacon receiver 107 sets its own operating frequency point in accordance with the set beacon frequency instruction.
Step 6014, the station control device 101 sends a polarization setting instruction to the antenna controller. The antenna controller adjusts its own polarization mode according to the set polarization command.
Step 6015, the station control device 101 sends an instruction to acquire the beacon machine state to the beacon receiver 107 once every 10 seconds.
In step 6016, the beacon receiver 107 responds to the command of obtaining the beacon state to feed back the beacon state to the station control device 101. After the station control device 101 acquires the beacon state, it determines whether the signal is locked, if not, continues from step 6015 to step 6016 until the signal is locked.
At step 6017, the first modem 103 sends a Polarization (PLR) mode command to the station control device 101.
Step 6018, the station control device 101 generates a polarization setting instruction based on the plan mode instruction, and sends the polarization setting instruction to the antenna controller, and the antenna controller adjusts the polarization mode according to the polarization setting instruction, so as to implement the first modem 103 to adjust the polarization mode of the antenna controller.
Step 6019, the first modem 103 sends the local oscillation frequency command.
In step 6020, the station control device 101 generates a set local oscillation frequency instruction to the low noise receiver 1052 based on the local oscillation frequency instruction, so as to adjust the local oscillation frequency of the low noise receiver 1052.
In step 6021, the first modem 103 sends an on transmission message to the station control device 101 to inform the station control device 101 that it is currently in operation, and outputs information (e.g., modulated information) to the satellite power amplifier 1053 and receives information (e.g., information to be demodulated) output from the low noise receiver 1052.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 7, a block diagram of an embodiment of a satellite communication apparatus according to the present invention is shown, which is located in a station control device 101; the station control equipment 101 is connected with an antenna controller and a first modem 103; the first modem 103 and the antenna controller are connected with a satellite antenna assembly 105; the method specifically comprises the following modules:
a latitude and longitude information sending module 701, configured to send the latitude and longitude information sent by the antenna controller to the first modem 103 after performing first conversion;
a polarization information receiving module 702, configured to receive a receiving parameter and polarization information output by the first modem 103 according to the longitude and latitude information;
a polarization information forwarding module 703, configured to perform second conversion on the receiving parameter and the polarization information, and send the second conversion to the antenna controller; the antenna controller is configured to adjust the reception polarization of the satellite antenna assembly 105 according to the reception parameter and the polarization information, and feed back signal locking state information;
a signal locking status sending module 704, configured to send the signal locking status information to the first modem 103; the first modem controller is configured to output modulation information to the satellite antenna assembly 105 when it is determined that the antenna controller is in a normal operating state according to the signal locking state information;
the first modem 103 is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
In an optional embodiment of the invention, the apparatus further comprises:
a survival information sending module, configured to send survival information to the first modem 103 according to a preset frequency when it is determined that the antenna controller is in a normal operating state; when the first modem 103 cannot receive the alive message within a preset time, it stops outputting the modulation message.
In an optional embodiment of the invention, the apparatus further comprises:
a local oscillation frequency adjustment request receiving module, configured to receive a local oscillation frequency adjustment request sent by the first modem 103; the local oscillator frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
a local oscillator frequency adjustment request forwarding module, configured to send the local oscillator frequency adjustment request to the satellite antenna assembly 105; the satellite antenna assembly 105 is configured to determine a local oscillation frequency of the satellite antenna assembly in response to the local oscillation frequency adjustment request after the first conversion.
In an alternative embodiment of the present invention, the station control device 101 is connected to a beacon receiver 107; the device further comprises:
a satellite aiming instruction receiving module, configured to receive a satellite aiming instruction sent by the beacon receiver 107;
the working frequency request module is used for generating a working frequency request according to the satellite aiming instruction and a preset second data table;
a receiving frequency point determining module, configured to send the working frequency request to the beacon receiver 107; the beacon receiver 107 is configured to respond to the working frequency request and determine a receiving frequency point;
the beacon receiver 107 feeds back a receiving module, which is used for receiving the receiving level and the beacon locking state fed back by the beacon receiver 107.
In an alternative embodiment of the invention, the first conversion is performed according to a binary synchronous communication protocol; the second conversion is according to the opemip standard protocol.
In an optional embodiment of the present invention, the station control device 101 is connected to the first modem 103 and the second modem 104 through an ethernet switch;
the station control device 101 communicates with at most one of the first modem 103 and the second modem 104;
wherein the second modem 104 is adapted to the Ku band non-broadband satellite.
In an alternative embodiment of the present invention, the satellite antenna assembly 105 includes a satellite antenna 1051, a low noise receiver 1052 connected to the satellite antenna 1051, and a satellite power amplifier 1053;
the satellite antenna 1051 is connected with the antenna controller;
the low noise receiver 1052 is connected to the beacon receiver 107, the first modem controller, and the second modem 104;
the satellite power amplifier 1053 is connected with the first modulation and demodulation controller and the second modem 104;
the satellite antenna 1051, the low noise receiver 1052 and the satellite power amplifier 1053 are adapted to a Ku frequency band non-wideband satellite.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiment of the present invention further discloses a station control device 101, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the steps of the satellite communication method described above are implemented.
The embodiment of the invention also discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the satellite communication method when being executed by a processor.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the true scope of the embodiments of the present invention.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
The satellite communication method, the satellite communication device, and the station control apparatus 101 provided by the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the above embodiments are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A satellite communication method is characterized by being applied to station control equipment; the station control equipment is connected with the antenna controller and the first modem; the first modem and the antenna controller are connected with a satellite antenna assembly; the method comprises the following steps:
the longitude and latitude information sent by the antenna controller is subjected to first conversion and then sent to a first modem;
receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
performing second conversion on the receiving parameters and the polarization information and then sending the receiving parameters and the polarization information to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna assembly according to the receiving parameters and the polarization information and feeding back signal locking state information;
sending the signal lock status information to the first modem; the first modulation and demodulation controller is used for outputting modulation information to the satellite antenna component when the antenna controller is determined to be in a normal working state according to the signal locking state information;
the first modem is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
2. The method of claim 1,
when the antenna controller is determined to be in a normal working state, sending survival information to the first modem according to a preset frequency; and when the first modem cannot receive the survival information within a preset time, stopping outputting the modulation information.
3. The method of claim 1, further comprising:
receiving a local oscillator frequency adjustment request sent by the first modem; the local oscillation frequency adjusting request is determined according to the longitude and latitude information and a preset first data table;
sending the local oscillator frequency adjustment request to the satellite antenna assembly; and the satellite antenna assembly is used for responding to the local oscillator frequency adjustment request after the first conversion and determining the local oscillator frequency of the satellite antenna assembly.
4. The method of claim 1, wherein the station control device is connected to a beacon receiver; after the sending the signal lock state information to the first modem, the method further comprises:
receiving a satellite aiming instruction sent by the beacon receiver;
generating a working frequency request according to the satellite aiming instruction and a preset second data table;
transmitting the operating frequency request to the beacon receiver; the beacon receiver is used for responding to the working frequency request and determining a receiving frequency point;
and receiving the receiving level fed back by the beacon receiver and the beacon locking state.
5. The method according to claim 1 or 3,
the first conversion is performed according to a binary synchronous communication protocol;
the second conversion is according to the opemip standard protocol.
6. The method of claim 1, wherein the station control device is connected to the first modem and the second modem via an ethernet switch;
the station control device is in communication with at most one of the first modem and second modem connections;
and the second modem is adapted to the Ku frequency band non-broadband satellite.
7. The method of claim 6, wherein the satellite antenna assembly comprises a satellite antenna, a low noise receiver connected to the satellite antenna, and a satellite power amplifier;
the satellite antenna is connected with the antenna controller;
the low-noise receiver is connected with the beacon receiver, the first modulation and demodulation controller and the second modulation and demodulation controller;
the satellite power amplifier is connected with the first modulation and demodulation controller and the second modulation and demodulation controller;
the satellite antenna, the low-noise receiver and the satellite power amplifier are matched with the Ku frequency band non-broadband satellite.
8. A satellite communications apparatus, characterized by a station control device; the station control equipment is connected with the antenna controller and the first modem; the first modem and the antenna controller are connected with a satellite antenna assembly; the device comprises:
the latitude and longitude information sending module is used for carrying out first conversion on the latitude and longitude information sent by the antenna controller and then sending the latitude and longitude information to the first modem;
the polarization information receiving module is used for receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
the polarization information forwarding module is used for performing second conversion on the receiving parameters and the polarization information and then sending the receiving parameters and the polarization information to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna assembly according to the receiving parameters and the polarization information and feeding back signal locking state information;
a signal locking state sending module, configured to send the signal locking state information to the first modem; the first modulation and demodulation controller is used for outputting modulation information to the satellite antenna assembly when the antenna controller is determined to be in a normal working state according to the signal locking state information;
the first modem is adapted to a broadband satellite, and the antenna controller is adapted to a Ku frequency band non-broadband satellite.
9. A station control device comprising a processor, a memory and a computer program stored on the memory and capable of running on the processor, the computer program, when executed by the processor, implementing the steps of the satellite communication method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the satellite communication method according to any one of claims 1 to 7.
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| CN202210916418.1A CN115412151A (en) | 2022-08-01 | 2022-08-01 | Satellite communication method and device and station control equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210916418.1A CN115412151A (en) | 2022-08-01 | 2022-08-01 | Satellite communication method and device and station control equipment |
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