CN115412151B - 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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- CN115412151B CN115412151B CN202210916418.1A CN202210916418A CN115412151B CN 115412151 B CN115412151 B CN 115412151B CN 202210916418 A CN202210916418 A CN 202210916418A CN 115412151 B CN115412151 B CN 115412151B
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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
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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 converted for the first time and then sent to the first modem; receiving parameters and polarization information output by a first modem according to longitude and latitude information; the receiving parameters and the polarization information are subjected to second conversion and then sent to an antenna controller; the antenna controller is used for adjusting the receiving polarization and feeding back signal locking state information; the first modem 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 embodiment of the invention realizes the communication between the ku frequency band adaptive antenna controller and the broadband satellite adaptive first modem controller in the original vehicle-mounted satellite communication system, thereby realizing the function of adding communication with the broadband satellite in the original vehicle-mounted satellite communication system.
Description
Technical Field
The present invention relates to the field of satellite communications technologies, and in particular, to a satellite communications method, a satellite communications apparatus, and a station control device.
Background
The broadband satellite adopts a plurality of new technologies such as frequency multiplexing, multi-point wave beams and the like, the communication capacity is tens of times higher than that of a conventional satellite (a satellite communication system under the condition of single large wave beam coverage), and compared with the conventional satellite, the broadband satellite has lower unit bandwidth cost and higher receiving and transmitting gain, and can obtain stronger communication capacity under the same condition (the same antenna caliber and the same power amplifier power).
At present, the field of emergency communication has a plurality of emergency satellite communication vehicles, and a vehicle-mounted conventional Ku frequency band satellite communication system is configured as a main relay return means, but the system does not have the application capability of a broadband satellite. How to update and reform the conventional satellite communication system, realize the fast switching use between the broadband satellite and the conventional satellite system, can further promote the broadband communication guarantee capability of the satellite on the premise of avoiding repeated construction of assets and improving the utilization rate of the conventional equipment, and has wide application prospect.
Because the Ku frequency band broadband satellite overlaps with the working frequency band of the conventional Ku frequency band satellite, 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.
However, in practical application, because the operation mechanisms of the wideband satellite and the conventional satellite are greatly different, the use requirements of the wideband satellite cannot be directly met by the antenna controller, the beacon receiver and other devices in the conventional satellite communication system.
Disclosure of Invention
In view of the above, embodiments of the present invention have been made to provide a satellite communication method and a corresponding satellite communication device that overcome or at least partially solve the above problems.
In order to solve the 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 component; the method comprises the following steps:
The longitude and latitude information sent by the antenna controller is converted for the first time and then sent to the first modem;
Receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
The receiving parameters and the polarization information are subjected to second conversion and then sent to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna component according to the receiving parameters and the polarization information and feeding back signal locking state information;
Transmitting the signal lock state information to the first modem; the first modem controller is configured to output 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.
Optionally, 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 stopping outputting the modulation information when the first modem cannot receive the survival information within the preset time.
Optionally, the method further comprises:
receiving a local oscillator frequency adjustment request sent by the first modem; the local oscillation frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
Transmitting the local oscillator frequency adjustment request to the satellite antenna assembly; the satellite antenna component 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 component.
Optionally, the station control device is connected with a beacon receiver; after said transmitting said signal lock state information to said first modem, said method further comprises:
Receiving a satellite aiming instruction sent by the beacon receiver;
Generating a working frequency request according to the star alignment 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.
Optionally, the first conversion is converted according to a binary synchronous communication protocol;
the second conversion is conversion according to OPENAMIP standard protocol.
Optionally, the station control device is connected with the first modem and the second modem through an ethernet switch;
The station control device communicates with at most one of the first modem and the second modem connections;
Wherein the second modem is adapted to Ku band non-broadband satellites.
Optionally, the satellite antenna component comprises a satellite antenna, a low noise receiver connected with 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 modem controller and the second modem controller;
the satellite power amplifier is connected with the first modem controller and the second modem controller;
the satellite antenna, the low-noise receiver and the satellite power amplifier are adapted to a 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 component; the device comprises:
The longitude and latitude information transmitting module is used for performing first conversion on longitude and latitude information transmitted by the antenna controller and transmitting the converted longitude and latitude information to the first modem;
The polarization information receiving module is used for receiving the receiving parameters and the 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 second conversion to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna component according to the receiving parameters and the polarization information and feeding back signal locking state information;
A signal locking state transmitting module, configured to transmit the signal locking state information to the first modem; the first modem controller is configured to output 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.
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 the computer program realizes the steps of the satellite communication method when being executed by the processor.
The embodiment of the invention also discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program which 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 framework of the existing vehicle-mounted satellite communication system is modified, the first modem which is matched with the broadband satellite is added, the first modem is connected with the satellite antenna component of the vehicle-mounted satellite communication system, and the station control equipment is added to realize that the first modem is connected and communicated with the antenna controller in the original vehicle-mounted satellite system, so that 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 communication system in accordance with the present invention;
FIG. 2 is a flow chart of steps of an embodiment of a satellite communication method of the present invention;
FIG. 3 is a flow chart of steps of another satellite communication method embodiment of the present invention;
FIG. 4 is a schematic diagram of an instruction format provided by the present invention;
FIG. 5 is a schematic diagram of a protocol stack logic structure according to the present invention;
FIG. 6 is a workflow diagram provided by the present invention;
fig. 7 is a block diagram of an embodiment of a satellite communication device according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, a satellite communication system architecture diagram of the present invention is shown. The satellite system comprises a station control device 101, an antenna controller, a first modem 103 and a second modem 104 which are connected with the station control device 101, and a satellite antenna assembly 105 which is 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 satellite system in an existing emergency satellite communication vehicle. Because the broadband satellite adopts the multi-point wave beam coverage technology, the polarization and the frequency of adjacent wave beams are different. In the related art, an emergency satellite vehicle may have a beam crossing condition due to the unfixed work site. Therefore, the interaction state with the broadband satellite needs to be maintained, otherwise, once the beam range is converted, the network cannot be accessed for use due to the problems of time slot distribution, clock synchronization and the like. To have interactive communication capability with the broadband satellite, the antenna controller is required to support OpenAMIP protocols, maintain communication with the broadband satellite modem in real time, and automatically switch polarization. Because the existing emergency vehicle antenna controller does not support the protocol, the existing emergency vehicle antenna controller cannot communicate with the broadband satellite modem in real time, cannot acquire geographic position information, cannot automatically control antenna switching polarization, and therefore the emergency satellite communication vehicle cannot normally access the network.
The embodiment of the present invention can implement the broadband satellite communication between the original vehicle-mounted satellite system and ku frequency band by adding the station control device 101 and the first modem 103 in the original vehicle-mounted satellite system, and meanwhile, because the second modem 104 in the original vehicle-mounted satellite system is reserved, the embodiment of the present invention can also implement 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), the station control device 101 forwards the data transmitted between 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 embodiment of the present invention is not repeated. The following describes a communication flow with a broadband satellite according to an embodiment of the present invention based on the satellite communication system of fig. 1.
Referring to fig. 2, a flowchart showing steps of an embodiment of a satellite communication method of the present invention 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 and the antenna controller are connected with a satellite antenna assembly 105; the method specifically comprises the following steps:
Step 201, the latitude and longitude information sent by the antenna controller is sent to the first modem 103 after being subjected to first conversion;
The first modem 103 may initiate a longitude and latitude acquisition request, and the station control device 101 converts the longitude and latitude acquisition request into a longitude and latitude acquisition instruction that can be identified by the antenna controller, where the antenna controller can identify the longitude and latitude acquisition instruction and send feedback real-time longitude and latitude information to the station control device.
The station control device 101 may establish a TCP connection with the first modem 103 through an ethernet switching device, and transmit longitude and latitude 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 the first conversion on the latitude and longitude information sent by the antenna controller, so that the latitude and longitude information can be sent to the first modem 103 and can be identified by the first modem 103.
Step 202, receiving the receiving parameters and polarization information output by the first modem 103 according to the latitude and longitude information;
The first modem 103 determines the receiving parameters and polarization information of the antenna controller according to the latitude and longitude information and a preset rule, where the preset rule is a rule that the broadband satellite modem determines the receiving parameters and polarization information of the antenna controller in the prior art, and the embodiments of the present invention are not repeated.
Step 203, performing second conversion on the receiving parameters and the polarization information, and then sending the second conversion to the antenna controller; the antenna controller is configured to adjust a reception polarization of the satellite antenna assembly 105 according to the reception parameter and the polarization information, and feed back signal lock state information;
The station control apparatus 101, upon receiving the reception parameters and polarization information transmitted by the first modem 103, transmits the reception parameters and the plan information to the antenna controller, and is recognized by the antenna controller. The second conversion is a protocol inverse of the first conversion.
The antenna controller, after receiving the reception parameters and the polarization information, can adjust its own reception polarization (e.g., horizontal polarization, vertical polarization, circular polarization, etc.) according to the reception parameters and the polarization information. And feeds back signal lock state information to the station control apparatus 101, and the station control apparatus 101 can determine whether the antenna controller successfully performs signal lock according to the signal lock state information.
Step 204, sending the signal lock status information to the first modem 103; the first modem controller is configured to output modulation information to the satellite antenna assembly 105 when the antenna controller is determined to be in a normal working state according to the signal locking state information;
Wherein the first modem 103 is adapted to a broadband satellite, and the antenna controller is adapted to a Ku band non-broadband satellite.
The station control device 101 can perform the second conversion on the signal locking state information and then send the signal locking state information to the first modem 103, the first modem 103 can confirm whether the antenna controller is in a normal working state based on the signal locking state information, and if the antenna controller is in the normal working 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 realize communication with a broadband satellite.
In the embodiment of the invention, the framework of the existing vehicle-mounted satellite communication system is modified, the first modem 103 matched with the 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 equipment 101 is added to realize that the first modem 103 is connected and communicated with an 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; at most one of the station control device 101 and the first modem 103 and the second modem 104 connections communicates; 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 an on power 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 ku-band broadband satellite such that upon powering up the first modem 103, communication with 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, the second modem is enabled to realize non-broadband satellite communication with Ku-band, thereby enabling the satellite communication system provided by the embodiment of the invention to realize a multimode satellite communication mode, and switching the satellite communication mode by means of electrically switching the modem.
The satellite antenna assembly 105 includes a satellite antenna 1051, a low noise receiver 1052 coupled to the satellite antenna 1051, and a satellite power amplifier 1053; the satellite antenna 1051 is connected to 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 modem controller and the second modem 104; the satellite antenna 1051, the low noise receiver 1052, and the satellite power amplifier 1053 are adapted to Ku band non-broadband satellites.
In addition, the satellite communication system provided by the embodiment of the invention is further provided with a spectrum analyzer 108 for monitoring the actually received satellite signals.
Referring to fig. 3, a flowchart illustrating steps of another satellite communication method embodiment of the present invention, applied to the station control device 101, may specifically include the following steps:
Step 301, performing first conversion on longitude and latitude information sent by an antenna controller, and then sending the converted longitude and latitude information to the first modem 103;
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 as shown in fig. four: the STX start command is sent by the station control device 101, and the ACK and NAK start commands are feedback from the antenna controller. Wherein ACK is a normal command acknowledgement, NAK is that the received command is incorrect or that no command is defined and cannot be executed. ADDRESS is the ADDRESS of antenna controller 102, COMMAND is a specific COMMAND, D1, D2 … are COMMAND parameters, ETX is an end bit, and CHKSUM is a check bit. Through the format instruction, mutual communication between the station control equipment 101 and the antenna controller is realized, so that the station control equipment 101 can receive longitude and latitude information sent by the antenna controller.
Referring to fig. 5, a schematic diagram of a protocol stack logic structure provided by the present invention is shown;
the broadband satellite modem (the first modem 103) is connected with the station control equipment 101 through a standard ethernet interface, the interface conforms to OPENAMIP standard protocols, and the two parties interact messages through the TCP protocol, and the content of the messages is in an ASCII mode. With the satellite modem acting as a TCP client and the station control device 101 acting as a server for TCP. The station control device 101 is connected with the antenna controller through an RS422/232 interface, the interface conforms to the binary synchronous communication protocol (BISYNC) of IBM, the message content is in ASCII mode, 1 start bit, 8 data bits (7 bits ASCII,1 bit is check), and 1 stop bit.
In addition, the interactive communication command format between the satellite modem and the station control device 101: the uppercase command indicates satellite modem to station control device 101 and the lowercase command indicates station control device 101 to satellite modem. If the parameter range exceeds the definition of the antenna controller (e.g., the antenna or hardware capability limit 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 longitude and latitude 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 the ACU message is identified by the first MODEM 103.
Step 302, receiving the receiving parameters and polarization information output by the first modem 103 according to the latitude and longitude information;
Step 303, performing second conversion on the receiving parameters and the polarization information, and then sending the second conversion to the antenna controller; the antenna controller is configured to adjust a reception polarization of the satellite antenna assembly 105 according to the reception parameter and the polarization information, and feed back signal lock state information;
as shown in fig. 5, the second conversion is to convert the ACU information into a MODEM-ACU message according to OPENAMIP standard protocol.
Step 304 of transmitting the signal lock status information to the first modem 103; the first modem controller is configured to output modulation information to the satellite antenna assembly 105 when the antenna controller is determined to be in a normal working state according to the signal locking state information;
in practical application, after receiving the signal lock state fed back by the antenna controller, the station control device 101 sends a star finding request to the antenna controller, and the antenna controller performs a corresponding operation after responding to the star finding request. The station control device 101 may also send an antenna deployment instruction, an antenna stowage instruction, etc. to the antenna controller.
The station 101 may also send a local oscillator frequency command to the low noise receiver 1052, where the low noise receiver 1052 is configured to set its own local oscillator frequency in accordance with the local oscillator frequency command.
Step 305, when it is determined that the antenna controller is in a normal working state, sending survival information to the first modem 103 according to a preset frequency; when the first modem 103 cannot receive the survival information within a preset time, stopping outputting modulation information; wherein the first modem 103 is adapted to a broadband satellite, and the antenna controller is adapted to a Ku band non-broadband satellite.
After determining that the antenna controller is in the normal operating state, the station control device 101 sends survival (active) information according to the evaluation rate matched by the first modem 103, so that the first modem 103 determines whether the antenna controller is in the normal operating state, and in practical application, the station control device 101 may send the survival information to the first modem 103 according to a frequency of 10 seconds/time. When the first modem 103 fails to receive the survival information, it is determined that the antenna controller is in an abnormal state and fails to operate normally, and the first modem 103 stops outputting information (e.g., modulated information) to the satellite antenna assembly 105.
Similarly, when the first modem 103 fails to receive the survival information within a preset time, it stops receiving the information to be demodulated and stops outputting the demodulated information.
In an alternative embodiment of the invention, the method further comprises:
Receiving a local oscillation frequency adjustment request sent by the first modem 103; the local oscillation frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
transmitting the local oscillator frequency adjustment request to the satellite antenna assembly 105; the satellite antenna assembly 105 is configured to determine the local oscillation frequency in response to the local oscillation frequency adjustment request after the first conversion.
The station control device 101 forwards the local frequency adjustment request sent by the first modem 103 to the satellite antenna assembly 105, and the low noise receiver 1052 in the satellite antenna assembly 105 can adjust its own local frequency according to the local frequency adjustment request, so as to realize that the first modem 103 switches the local frequency of the low noise receiver 1052.
In a specific implementation, the broadband modem determines the operating voltage of the low noise receiver 1052 from the warp and weft information obtained from the antenna controller and its built-in data table (first data table), and generates a local oscillation frequency setting instruction based on the operating voltage. The device sends a local oscillator frequency setting instruction to the low noise receiver 1052 to adjust the working voltage (13 v dc voltage or 18 v dc voltage) of the low noise receiver 1052, so as to achieve the purpose of local oscillator switching.
In an alternative embodiment of the invention, the station control device 101 is connected to a beacon receiver 107; after said transmitting said signal lock status information to said first modem 103, said method further comprises:
Receiving a satellite-versus-command transmitted by the beacon receiver 107;
Generating a working frequency request according to the star alignment instruction and a preset second data table;
transmitting the operating frequency request to the beacon receiver 107; the beacon receiver 107 is configured to determine a receiving frequency point in response to the operating frequency request;
the reception level fed back by the beacon receiver 107 and the beacon lock state are received.
The station control apparatus 101 compares the acquired reception level with the lock level, and pauses the star operation when the former is larger than the latter, and is in the lock state.
The station control device 101 is connected with the beacon receiver 107 through an RS232/RS422 interface, the beacon receiver 107 can communicate at a rate of 1200sps at the lowest and 19200sps at the highest every 5 seconds, 8 data bits and 1 check bit are obtained, unencrypted ASCII codes are adopted, and signaling returned by the beacon is an ACK message or a NACK message. The first bit of ACK is a standard symbol, the second bit is a parameter bit, the second last bit is a check bit, the last bit is EOT, and the mark is ended.
In the following, a specific example of an embodiment of the present invention is further described with reference to fig. 6, which shows a workflow diagram provided by the present invention, including the following steps:
in step 601, the first modem 103 transmits a TCP connection request to the station control apparatus 101.
In step 602, the station control device 101 establishes a TCP connection with the first modem 103.
In step 603, the first modem 103 sends a request to the station control device 101 to acquire GPS (Global Positioning System ) information, including but not limited to latitude and longitude information, every 30 seconds.
In step 604, the station control device 101 converts the request for acquiring 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.
The station control device 101 forwards the GPS information to the first modem 103, step 606.
In step 607, the first modem 103 sends a request to the station control device 101 to acquire an antenna controller state, including signal lock state information, once every 10 seconds.
In step 608, the station control device 101 forwards the request for acquiring the state of the antenna controller to the antenna controller after conversion.
In step 609, the antenna controller responds to the acquire antenna controller status request to send the antenna controller status to the station control device 101.
In step 6010, the station control apparatus 101 forwards the antenna controller state to the first modem 103.
In step 6011, the station control apparatus 101 transmits a star finding instruction to the antenna controller, and the antenna controller can respond to the star finding instruction and perform a corresponding operation.
In step 6012, the station apparatus 101 transmits a local oscillation frequency setting instruction to the low noise receiver 1052. The low noise receiver 1052 sets its own local oscillator frequency in accordance with the set local oscillator frequency instruction.
In step 6013, the station control apparatus 101 transmits 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.
In step 6014, the station control apparatus 101 transmits a set polarization instruction to the antenna controller. The antenna controller adjusts its own polarization mode according to the set polarization instruction.
In step 6015, the station control apparatus 101 transmits an acquire beacon state instruction to the beacon receiver 107 once every 10 seconds.
In step 6016, the beacon receiver 107 feeds back the beacon state to the station control device 101 in response to the acquire beacon state instruction. After the station control device 101 acquires the beacon state, it determines whether the signal is locked, and if not, steps 6015 to 6016 are continued until the signal is locked.
In step 6017, the first modem 103 transmits a Polarization (PLR) mode instruction to the station control apparatus 101.
In step 6018, the station control device 101 generates a polarization setting instruction based on the planning mode instruction, and sends the polarization setting instruction to the antenna controller, and the antenna controller adjusts its polarization mode according to the polarization setting instruction, so as to implement that the first modem 103 adjusts the polarization mode of the antenna controller.
In step 6019, the first modem 103 transmits a local oscillation frequency instruction.
In step 6020, the station apparatus 101 generates a set local frequency instruction to the low noise receiver 1052 based on the local frequency instruction to adjust the local frequency of the low noise receiver 1052.
In step 6021, the first modem 103 transmits the open transmission information to the station apparatus 101 to notify the station apparatus 101 that it is currently in an operating state, 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 shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.
Referring to fig. 7, there is shown a block diagram of an embodiment of a satellite communication apparatus of the present invention, located at 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:
The latitude and longitude information sending module 701 is configured to perform a first conversion on latitude and longitude information sent by the antenna controller, and send the converted latitude and longitude information to the first modem 103;
a polarization information receiving module 702, configured to receive the polarization information and the reception parameters output by the first modem 103 according to the latitude and longitude information;
A polarization information forwarding module 703, configured to perform a second conversion on the reception parameter and the polarization information, and send the second conversion result to the antenna controller; the antenna controller is configured to adjust a reception polarization of the satellite antenna assembly 105 according to the reception parameter and the polarization information, and feed back signal lock state information;
A signal lock status transmitting module 704, configured to transmit the signal lock status information to the first modem 103; the first modem controller is configured to output modulation information to the satellite antenna assembly 105 when the antenna controller is determined to be in a normal working state according to the signal locking state information;
Wherein the first modem 103 is adapted to a broadband satellite, and the antenna controller is adapted to a Ku band non-broadband satellite.
In an alternative 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 working state; the first modem 103 stops outputting the modulation information when the survival information cannot be received within a preset time.
In an alternative 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 oscillation frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
A local oscillation frequency adjustment request forwarding module, configured to send the local oscillation frequency adjustment request to the satellite antenna assembly 105; the satellite antenna assembly 105 is configured to determine the local oscillation frequency in response to the local oscillation frequency adjustment request after the first conversion.
In an alternative embodiment of the invention, the station control device 101 is connected to a beacon receiver 107; the apparatus further comprises:
A star command receiving module, configured to receive a star command sent by the beacon receiver 107;
The working frequency request module is used for generating a working frequency request according to the satellite alignment instruction and a preset second data table;
a receiving frequency point determining module, configured to send the operating frequency request to the beacon receiver 107; the beacon receiver 107 is configured to determine a receiving frequency point in response to the operating frequency request;
The beacon receiver 107 feedback receiving module is configured to receive a reception level and a beacon lock state fed back by the beacon receiver 107.
In an alternative embodiment of the invention, the first conversion is according to a binary synchronous communication protocol; the second conversion is conversion according to OPENAMIP standard protocol.
In an alternative 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;
At most one of the station control device 101 and the first modem 103 and the second modem 104 connections communicates;
Wherein the second modem 104 is adapted to Ku band non-broadband satellites.
In an alternative embodiment of the present invention, the satellite antenna assembly 105 includes a satellite antenna 1051, a low noise receiver 1052 coupled to the satellite antenna 1051, and a satellite power amplifier 1053;
The satellite antenna 1051 is connected to 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 modem controller and the second modem 104;
The satellite antenna 1051, the low noise receiver 1052, and the satellite power amplifier 1053 are adapted to Ku band non-broadband satellites.
For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
The embodiment of the invention also discloses a station control device 101, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the satellite communication method when being executed by the processor.
The embodiment of the invention also discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the steps of the satellite communication method when being executed by a processor.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that 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 invention may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) 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 device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus 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 in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that 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. Moreover, 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 phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.
The foregoing has described in detail a satellite communication method, apparatus and station control device 101 according to the present invention, and specific examples have been applied to illustrate the principles and embodiments of the present invention, where the foregoing examples are provided only to assist in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (10)
1. A satellite communication method, characterized by being applied to 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 component; the method comprises the following steps:
The longitude and latitude information sent by the antenna controller is converted for the first time and then sent to the first modem;
Receiving parameters and polarization information output by the first modem according to the longitude and latitude information;
The receiving parameters and the polarization information are subjected to second conversion and then sent to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna component according to the receiving parameters and the polarization information and feeding back signal locking state information;
Transmitting the signal lock state information to the first modem; the first modem 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, wherein the step of determining the position of the substrate comprises,
When the antenna controller is determined to be in a normal working state, survival information is sent to the first modem according to a preset frequency; and stopping outputting the modulation information when the first modem cannot receive the survival information within the preset time.
3. The method according to claim 1, wherein the method further comprises:
receiving a local oscillator frequency adjustment request sent by the first modem; the local oscillation frequency adjustment request is determined according to the longitude and latitude information and a preset first data table;
Transmitting the local oscillator frequency adjustment request to the satellite antenna assembly; the satellite antenna component 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 component.
4. The method of claim 1, wherein the station-controlled device is connected to a beacon receiver; after said transmitting said signal lock state information to said first modem, said method further comprises:
Receiving a satellite aiming instruction sent by the beacon receiver;
Generating a working frequency request according to the star alignment 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. A method according to claim 1 or 3, characterized in that,
The first conversion is converted according to a binary synchronous communication protocol;
the second conversion is conversion according to OPENAMIP standard protocol.
6. The method of claim 1, wherein the station control device is connected to the first modem and the second modem through an ethernet switch;
The station control device communicates with at most one of the first modem and the second modem connections;
Wherein the second modem is adapted to Ku band non-broadband satellites.
7. The method of claim 6, wherein the satellite antenna assembly comprises a satellite antenna, a low noise receiver coupled 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 modem and the second modem;
the satellite power amplifier is connected with the first modem and the second modem;
the satellite antenna, the low-noise receiver and the satellite power amplifier are adapted to a Ku frequency band non-broadband satellite.
8. A satellite communication device, characterized in that it is located in a station control apparatus; 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 component; the device comprises:
The longitude and latitude information transmitting module is used for performing first conversion on longitude and latitude information transmitted by the antenna controller and transmitting the converted longitude and latitude information to the first modem;
The polarization information receiving module is used for receiving the receiving parameters and the 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 second conversion to the antenna controller; the antenna controller is used for adjusting the receiving polarization of the satellite antenna component according to the receiving parameters and the polarization information and feeding back signal locking state information;
A signal locking state transmitting module, configured to transmit the signal locking state information to the first modem; the first modem 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.
9. A station control device comprising a processor, a memory and a computer program stored on the memory and operable on the processor, which when executed by the processor carries out 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 computer program, when being executed by a processor, implements the steps of the satellite communication method according to any one of claims 1 to 7.
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| CN115412151A (en) | 2022-11-29 |
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