Multi-satellite remote command verification system and its method

Abstract

The present invention relates to a remote command verification system for multiple satellites and a method thereof, comprising: a plurality of low-orbit satellites performing a multiple satellite mission according to a remote command for a multiple satellite mission; and a ground station device that transmits the remote command to the plurality of low-orbit satellites, receives satellite status data corresponding to each of the plurality of low-orbit satellites from the plurality of low-orbit satellites, and performs command execution verification and remote command simulation for the multiple satellite mission, respectively, using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data. By including these components, the execution of a remote command for multiple satellites can be accurately verified.

Description

Technology Field

[0001] The present invention relates to a remote command verification system and method for a multi-satellite system capable of accurately verifying the execution of a remote command of a multi-satellite system by performing command execution verification and remote command simulation for a multi-satellite mission using transmission command information corresponding to a remote command transmitted from a ground station and satellite status information directly received from the multi-satellite system while a multi-satellite mission is performed on a plurality of low-orbit satellites in accordance with a remote command for a multi-satellite mission transmitted from a ground station antenna. Background Technology

[0002] As is well known, satellites can be classified into low orbit satellites, medium orbit satellites, polar orbit satellites, and geostationary satellites depending on their orbit around the Earth.

[0003] Here, geostationary satellites can communicate with ground stations 24 hours a day, but all satellites orbiting the Earth other than these geostationary satellites pass over ground stations at specific times and can communicate with ground stations at specific times.

[0004] Depending on the purpose, these satellites may be equipped with mission payloads such as optical cameras, radio cameras, infrared cameras, and multispectral cameras, and the satellite data acquired through these devices can be used to observe, monitor, or predict maps, topographic changes, facility detection, cloud movements, weather conditions, ocean conditions, and ocean changes.

[0005] In a satellite control system equipped with and operating multiple satellites as described above, the transmission, reception, and execution of satellite commands in the form of a continuous bundle of remote commands from a ground station are carried out in a remote space orbit. Consequently, there is a need for satellite command execution verification to confirm whether the satellite commands were accurately executed after receiving satellite data, and the development of technology for this purpose is required. Prior art literature

[0006] 1. Korean Registered Patent No. 10-1484547 (Registered Jan. 14, 2015) The problem to be solved

[0007] The present invention aims to provide a remote command verification system and method for a multi-satellite mission that can accurately verify the execution of a remote command by performing command execution verification and remote command simulation for a multi-satellite mission using transmission command information corresponding to the remote command transmitted from the ground station and satellite status information directly received from the multi-satellite while the multi-satellite mission is being performed by a plurality of low-orbit satellites in accordance with a remote command for a multi-satellite mission transmitted from a ground station antenna.

[0008] The purposes of the embodiments of the present invention are not limited to those mentioned above, and other unmentioned purposes will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] According to one aspect of the present invention, a remote command verification system for multiple satellites may be provided, comprising: a plurality of low-orbit satellites performing a multiple satellite mission in accordance with a remote command for a multiple satellite mission; and a ground station device that transmits the remote command to the plurality of low-orbit satellites, receives satellite status data corresponding to each of the plurality of low-orbit satellites from the plurality of low-orbit satellites, and performs command execution verification and remote command simulation for the multiple satellite mission, respectively, using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data.

[0010] In addition, according to one aspect of the present invention, a multi-satellite remote command verification system may be provided, comprising: a second transceiver unit that transmits the remote command to the plurality of low-orbit satellites and receives the satellite status data from the plurality of low-orbit satellites; a transmission command storage unit that databases a plurality of transmission commands corresponding to the remote command according to the multi-satellite mission and the plurality of low-orbit satellites and stores them as transmission command information; a satellite status information storage unit that databases a plurality of satellite status information corresponding to the satellite status data according to the multi-satellite mission and the plurality of low-orbit satellites and stores them as satellite status information; a command execution verification unit that verifies the execution of the remote command using the transmission command information and the satellite status information and provides a remote command verification result; and a remote command simulation unit that simulates execution on a time basis using the remote command verification result, the plurality of transmission commands, and the plurality of satellite status information.

[0011] In addition, according to one aspect of the present invention, a multi-satellite remote command verification system may be provided, wherein the command execution verification unit verifies the execution of the remote command for the plurality of low-orbit satellites using a remote command list obtained from the transmission command information and a remote command execution time obtained from the satellite status information.

[0012] Additionally, according to one aspect of the present invention, a remote command verification system for multiple satellites may be provided, comprising: a first transceiver that receives the remote command transmitted from the ground station device and transmits the satellite status data to the ground station device for each of the multiple low-orbit satellites; a link control unit that controls the first transceiver to perform a link connection with the ground station device; and an onboard computer unit that controls the overall satellite operation to perform the multiple satellite mission according to the remote command and controls the transmission of the satellite status data corresponding to each satellite to the ground station device.

[0013] According to another aspect of the present invention, a method for verifying a remote command of multiple satellites may be provided, comprising: a step of performing a multiple satellite mission on a plurality of low-orbit satellites in accordance with a remote command for a multiple satellite mission transmitted from a ground station device; a step of receiving satellite status data corresponding to each of the plurality of low-orbit satellites from the plurality of low-orbit satellites at the ground station device; a step of performing a verification of command execution for the multiple satellite mission using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data at the ground station device; and a step of performing a remote command simulation using the transmission command information and satellite status information at the ground station device.

[0014] In addition, according to another aspect of the present invention, the step of performing the multi-satellite mission may be provided with a method for verifying a multi-satellite remote command, wherein a plurality of transmission commands corresponding to the remote command according to the multi-satellite mission and a plurality of low-orbit satellites are databased and stored as transmission command information in a transmission command storage unit equipped in the ground station device.

[0015] In addition, according to another aspect of the present invention, a method for verifying a remote command of a multi-satellite may be provided, which further comprises the step of, after receiving the satellite status data, creating a database of multiple satellite status information corresponding to the satellite status data according to the multi-satellite mission and multiple low-orbit satellites and storing the satellite status information in a satellite status information storage unit equipped in the ground station device.

[0016] Additionally, according to another aspect of the present invention, the step of performing the command execution verification may be provided by a multi-satellite remote command verification method in which the execution of the remote command is verified using the transmission command information and satellite status information in a command execution verification unit provided in the ground station device, and a remote command verification result is provided, wherein the execution of the remote command for the plurality of low-orbit satellites is verified using a remote command list obtained from the transmission command information and a remote command execution time obtained from the satellite status information.

[0017] Additionally, according to another aspect of the present invention, the step of performing the remote command simulation may be provided as a method for verifying a remote command of multiple satellites in a time-based manner using the remote command verification result, the plurality of transmission commands, and the plurality of satellite status information in a remote command simulation unit provided in the ground station device. Effects of the invention

[0018] The present invention can accurately verify the execution of remote commands of multiple satellites by performing command execution verification and remote command simulation for multiple satellites using transmission command information corresponding to the remote command transmitted from the ground station and satellite status information directly received from the multiple satellites while performing a multiple satellite mission in accordance with a remote command for a multiple satellite mission transmitted from a ground station antenna.

[0019] Furthermore, the present invention can not only verify the remote command execution process through time-tag-based satellite command simulation using transmission command information corresponding to remote commands stored and managed at a ground station and satellite status data regarding satellite status transmitted from each satellite, but also automatically verify the entire process from the transmission of remote commands to verification without the intervention of an administrator, and can not only automatically monitor multi-satellite missions performed using multiple satellites but also effectively monitor the execution of such remote commands. Brief explanation of the drawing

[0020] FIG. 1 is a block diagram showing a remote command verification system for multiple satellites according to an embodiment of the present invention, and FIGS. 2 and 3 are drawings for explaining the detailed configuration of a remote command verification system for multiple satellites according to an embodiment of the present invention, and FIG. 4 is a flowchart illustrating the process of verifying a remote command of a multi-satellite according to another embodiment of the present invention. Specific details for implementing the invention

[0021] The advantages and features of the embodiments of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0022] In describing the embodiments of the present invention, specific descriptions of known functions or configurations will be omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions in the embodiments of the present invention, and these definitions may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification.

[0023] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0024] FIG. 1 is a block diagram showing a remote command verification system for multiple satellites according to an embodiment of the present invention, and FIG. 2 and FIG. 3 are drawings for explaining the detailed configuration of a remote command verification system for multiple satellites according to an embodiment of the present invention.

[0025] Referring to FIGS. 1 to 3, a remote command verification system for multiple satellites according to one embodiment of the present invention may include a plurality of low-orbit satellites (100), a ground station device (200), etc.

[0026] A plurality of low orbit satellites (100) are satellites that perform a multi-satellite mission according to a remote command for a multi-satellite mission, including, for example, a constellation of satellites, a multi-type satellite, etc., and each may include a first transceiver (110), a link control unit (120), an onboard computer unit (130), etc.

[0027] The first transceiver (110) can receive a telecommand (TC) transmitted from a ground station device (200) including at least one satellite antenna and transmit satellite status data to the ground station device (200). When a telecommand for performing a multi-satellite mission is transmitted from the ground station device (200) while the link with the ground station device (200) is connected through the control of the link control unit (120), it can be transmitted to the link control unit (120). Additionally, satellite status data (TM, Telemetry) corresponding to each satellite can be transmitted to the ground station device (200) under the control of the onboard computer unit (130).

[0028] The link control unit (120) controls the first transceiver unit (110) to perform a link connection with the ground station device (200), and can monitor the link connection while controlling the link connection between the multiple low-orbit satellites (100) and the ground station device (200).

[0029] This link control unit (120) can effectively control the link connection between a plurality of low-orbit satellites (100) and ground station equipment (200) by performing functions such as mutual link establishment and maintenance, link quality monitoring, link adjustment and optimization, and link release, and can transmit remote commands transmitted from the first transceiver unit (110) to the onboard computer unit (130).

[0030] The on-board computer unit (130) may be equipped with an on-board module that acts as the brain of the satellite, called an on-board computer, and may perform overall roles necessary for satellite operation, such as control, mission management, scheduling, and data storage for each subsystem connected to each satellite. It may control overall satellite operations to perform multi-satellite missions according to remote commands transmitted from the link control unit (120), and may control the transmission of satellite status data corresponding to each satellite to the ground station device (200) through the first transmission / reception unit (110).

[0031] Each satellite equipped with such an onboard computer unit (130) may be equipped with mission means such as an optical camera, a radio camera, an infrared camera, or a multispectral camera depending on the purpose, and each satellite mission may be performed by using satellite image data acquired through the mission means to monitor or predict changes by observing mapmaking, terrain changes, facility detection, cloud movement, weather conditions, and marine environment changes.

[0032] The telecommand (TC) transmitted to perform the multi-satellite mission as described above refers to the transmission of command and control data from a ground station device (200) to multiple low-orbit satellites (100), and may include, for example, a command code, transmission time, target of execution, work and operation instructions, command priority, command verification and error detection information, and can control each satellite to perform the multi-satellite mission through control of satellite operation, mission execution, satellite operation, device activation, etc. for each satellite.

[0033] Additionally, satellite status data (TM, Telemetry) corresponding to each of the multiple low-orbit satellites (100) signifies data transmission from the multiple low-orbit satellites (100) to the ground station device (200), and may include, for example, satellite status and operation information, sensor and device data, satellite performance data, mission execution information, data collection cycle and frequency information, event and notification information, etc., and may transmit sensor data, operation information, status information, etc. collected from each satellite to the ground station device (200).

[0034] The ground station device (200) transmits a remote command to a plurality of low-orbit satellites (100), receives satellite status data corresponding to each of the plurality of low-orbit satellites (100) from the plurality of low-orbit satellites (100), and performs command execution verification and remote command simulation for a multi-satellite mission using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data, and may include a second transmission / reception unit (210), a transmission command storage unit (220), a satellite status information storage unit (230), a command execution verification unit (240), a remote command simulation unit (250), etc.

[0035] The second transceiver (210) can transmit remote commands corresponding to a multi-satellite mission to multiple low-orbit satellites (100), including multiple ground station antennas, and receive satellite status data corresponding to each satellite from multiple low-orbit satellites (100).

[0036] This second transmission / reception unit (210) can be transmitted to a transmission command storage unit (220) to store transmission command information corresponding to a remote command transmitted to a plurality of low orbit satellites (100), and can be transmitted to a satellite status information storage unit (230) to receive satellite status data corresponding to each satellite from a plurality of low orbit satellites (100) and store it as satellite status information.

[0037] The transmission command storage unit (220) can store multiple transmission commands corresponding to the remote command in a database according to the multiple satellite mission and multiple low-orbit satellites (100) as transmission command information.

[0038] The transmission command storage unit (220) can store and manage the corresponding information corresponding to the remote command, including, for example, a command code, transmission time, target of execution, task and operation instructions, command priority, command verification and error detection information, etc., by creating a database of multiple transmission command information corresponding to multiple satellite missions performed by multiple low-orbit satellites (100) based on time (e.g., mission execution time, etc.) as illustrated in FIG. 2.

[0039] Additionally, the transmission command storage unit (220) can search for a plurality of transmission command information stored in accordance with a request from the command execution verification unit (240) as shown in FIG. 3, generate a remote command list for verifying the execution of a remote command, and provide it to the command execution verification unit (240). In accordance with a request from the remote command simulation unit (250), the transmission command information can be extracted in accordance with a time (e.g., mission execution time, etc.), for example, TC01, TC02, ... TCXX, etc., and provided to the remote command simulation unit (250).

[0040] The satellite state information storage unit (230) can store multiple satellite state information corresponding to the satellite state data in a database according to the multiple satellite mission and multiple low orbit satellites (100) as satellite state information.

[0041] The satellite status information storage unit (230) can store and manage the corresponding information corresponding to satellite status data, including, for example, satellite status and operation information, sensor and device data, satellite performance data, mission execution information, data collection cycle and frequency information, event and notification information, etc., by creating a database of multiple satellite status information corresponding to each satellite of a plurality of low orbit satellites (100) based on time (e.g., mission execution time, etc.) as illustrated in FIG. 2.

[0042] Additionally, the satellite status information storage unit (230) can extract a remote command execution time to verify the execution of a remote command from a plurality of satellite status information in accordance with a request from the command execution verification unit (240) as shown in FIG. 3 and provide it to the command execution verification unit (240), and can extract a plurality of satellite status information based on time (e.g., mission execution time, etc.) in accordance with a request from the remote command simulation unit (250) and provide it to the remote command simulation unit (250) in the form of, for example, TM01, TM02, ... TMXX.

[0043] The command execution verification unit (240) verifies the execution of a remote command using transmission command information and satellite status information and provides a remote command verification result. By cross-comparing the remote command list obtained from transmission command information through the transmission command storage unit (220) and the remote command execution time obtained from satellite status information through the satellite status information storage unit (230), the execution of a remote command for a plurality of low orbit satellites (100) can be verified.

[0044] This command execution verification unit (240) can provide the verified remote command verification result, obtained through cross-comparison of the remote command list and the remote command execution time, to the remote command simulation unit (250) as reference material for the remote command simulation execution.

[0045] The remote command simulation unit (250) simulates based on time using the remote command verification result, multiple transmission commands, and multiple satellite status information. When multiple transmission command information is provided from the transmission command storage unit (220) based on time (e.g., mission execution time, etc.), such as TC01, TC02, ... TCXX, and when multiple satellite status information is provided from the satellite status information storage unit (230) based on time (e.g., mission execution time, etc.), such as TM01, TM02, ... TMXX, these can be matched based on time (e.g., mission execution time, etc.) to simulate each remote command.

[0046] Through this simulation execution process, it is possible to monitor and verify whether each remote command was executed correctly.

[0047] Accordingly, according to one embodiment of the present invention, while performing a multi-satellite mission on a plurality of low-orbit satellites in accordance with a remote command for a multi-satellite mission transmitted from a ground station antenna, the execution of the remote command of the multi-satellite mission can be accurately verified by performing command execution verification and remote command simulation for the multi-satellite mission using transmission command information corresponding to the remote command transmitted from the ground station and satellite status information directly received from the multi-satellite.

[0048] In addition, according to one embodiment of the present invention, the remote command execution process can be verified through time-tag-based satellite command simulation using transmission command information corresponding to a remote command stored and managed at a ground station and satellite status data regarding the satellite status transmitted from each satellite. Furthermore, the entire process from the transmission of the remote command to verification can be automatically verified without the intervention of an administrator, and the multi-satellite mission performed using multiple satellites can be automatically monitored, and the monitoring of the remote command execution can be effectively performed.

[0049] FIG. 4 is a flowchart illustrating the process of verifying a remote command of a multi-satellite according to another embodiment of the present invention.

[0050] Referring to FIG. 4, a multi-satellite mission can be performed on multiple low-orbit satellites (100) in accordance with a remote command for a multi-satellite mission transmitted from a ground station device (200) (step 310).

[0051] Here, in the first transceiver (110) of a plurality of low orbit satellites (100), when a link with a ground station device (200) is connected through the control of a link control unit (120) and a remote command to perform a multi-satellite mission is transmitted from the ground station device (200), it can be transmitted to the link control unit (120), and the link control unit (120) can transmit the remote command transmitted from the first transceiver (110) to the onboard computer unit (130).

[0052] Accordingly, the onboard computer unit (130) can control the overall satellite operation to perform multi-satellite missions according to remote commands transmitted from the link control unit (120), and each satellite can perform satellite missions such as mapmaking, terrain changes, facility detection, cloud movement, weather conditions, and marine environment changes by observing and monitoring or predicting changes using satellite image data acquired through mission means such as optical cameras, radio cameras, infrared cameras, and multispectral cameras mounted on each satellite according to the purpose.

[0053] Meanwhile, in the step (310) of performing the above-mentioned multi-satellite mission, when a remote command is transmitted from the ground station device (200) to a plurality of low-orbit satellites (100), the ground station device (200) can database a plurality of transmission commands corresponding to the remote command according to the multi-satellite mission and the plurality of low-orbit satellites (100) and store them as transmission command information in the transmission command storage unit (220) provided in the ground station device (200).

[0054] For example, in the ground station device (200), the corresponding information corresponding to the remote command, including, for example, command code, transmission time, target of execution, task and operation instructions, command priority, command verification and error detection information, etc., can be databased into multiple transmission command information corresponding to a multi-satellite mission performed by multiple low-orbit satellites (100) based on time (e.g., mission execution time, etc.) and stored and managed in the transmission command storage unit (220).

[0055] And, the ground station device (200) can receive satellite status data corresponding to each of the plurality of low-orbit satellites (200) from the plurality of low-orbit satellites (200) (step 320).

[0056] For example, the onboard computer unit (130) provided in each of the multiple low-orbit satellites (200) can be controlled to transmit satellite status data corresponding to each satellite to the ground station device (200) through the first transceiver (110), and the ground station device (200) can receive such satellite status data through the second transceiver (210).

[0057] Here, satellite status data (TM) corresponding to each of the multiple low-orbit satellites (100) may include, for example, satellite status and operation information, sensor and device data, satellite performance data, mission execution information, data collection cycle and frequency information, event and notification information, etc., and the onboard computer unit (130) can transmit sensor data, operation information, status information, etc. collected from each satellite to the ground station device (200) through the first transceiver unit (110).

[0058] Next, the ground station device (200) can database multiple satellite status information corresponding to satellite status data according to multiple satellite missions and multiple low-orbit satellites (100) and store it as satellite status information in the satellite status information storage unit (230) provided in the ground station device (200) (step 330).

[0059] Here, the satellite status information storage unit (230) of the ground station device (200) can store and manage the corresponding information corresponding to satellite status data, including, for example, satellite status and operation information, sensor and device data, satellite performance data, mission execution information, data collection cycle and frequency information, event and notification information, etc., by creating a database of multiple satellite status information corresponding to each satellite of a plurality of low orbit satellites (100) based on time (e.g., mission execution time, etc.).

[0060] And, the ground station device (200) can perform command execution verification for a multi-satellite mission using transmission command information corresponding to a remote command and satellite status information corresponding to satellite status data (step 340).

[0061] In the step (340) of performing the above command execution verification, the execution of a remote command is verified using transmission command information and satellite status information in the command execution verification unit (240) provided in the ground station device (200), and then a remote command verification result is provided. In this step, the execution of a remote command for a plurality of low orbit satellites (100) can be verified using a remote command list obtained from the transmission command information and a remote command execution time obtained from the satellite status information.

[0062] For example, the transmission command storage unit (220) may search for a plurality of stored transmission command information in response to a request from the command execution verification unit (240) to generate a remote command list for verifying the execution of a remote command and provide it to the command execution verification unit (240), and the satellite status information storage unit (230) may extract a remote command execution time for verifying the execution of a remote command from a plurality of satellite status information in response to a request from the command execution verification unit (240) and provide it to the command execution verification unit (240).

[0063] Accordingly, the command execution verification unit (240) can verify the execution of remote commands for multiple low-orbit satellites (100) by cross-comparing the remote command list provided through the transmission command storage unit (220) and the remote command execution time provided through the satellite status information storage unit (230).

[0064] In this command execution verification unit (240), the verified remote command verification result obtained through cross-comparison of the remote command list and the remote command execution time can be provided to the remote command simulation unit (250) as reference material for remote command simulation execution.

[0065] In addition, remote command simulation can be performed using transmission command information and satellite status information at the ground station device (200) (step 350).

[0066] In the step (350) of performing the above remote command simulation, the remote command simulation unit (250) provided in the ground station device (200) can perform the simulation on a time basis using the remote command verification result, a plurality of transmission commands, and a plurality of satellite status information.

[0067] For example, the transmission command storage unit (220) may extract multiple transmission command information based on time (e.g., mission execution time, etc.) and provide it to the remote command simulation unit (250), for example, TC01, TC02, ... TCXX, in accordance with a request from the remote command simulation unit (250), and the satellite status information storage unit (230) may extract multiple satellite status information based on time (e.g., mission execution time, etc.) and provide it to the remote command simulation unit (250), for example, TM01, TM02, ... TMXX, in accordance with a request from the remote command simulation unit (250).

[0068] Accordingly, in the remote command simulation unit (250), when a plurality of transmission command information is provided from the transmission command storage unit (220) based on time (e.g., mission execution time, etc.), such as TC01, TC02, ... TCXX, and when a plurality of satellite status information is provided from the satellite status information storage unit (230) based on time (e.g., mission execution time, etc.), such as TM01, TM02, ... TMXX, these can be matched based on time (e.g., mission execution time, etc.) to simulate and execute each remote command.

[0069] Through this simulation execution process, it is possible to monitor and verify whether each remote command was executed correctly.

[0070] Accordingly, according to another embodiment of the present invention, while performing a multi-satellite mission on a plurality of low-orbit satellites in accordance with a remote command for a multi-satellite mission transmitted from a ground station antenna, the execution of the remote command of the multi-satellite mission can be accurately verified by performing command execution verification and remote command simulation for the multi-satellite mission using transmission command information corresponding to the remote command transmitted from the ground station and satellite status information directly received from the multi-satellite.

[0071] In addition, according to another embodiment of the present invention, the remote command execution process can be verified through time-tag-based satellite command simulation using transmission command information corresponding to the remote command stored and managed at the ground station and satellite status data regarding the satellite status transmitted from each satellite. Furthermore, the entire process from the transmission of the remote command to verification can be automatically verified without the intervention of an administrator, and the multi-satellite mission performed using multiple satellites can be automatically monitored, and the monitoring of the remote command execution can be effectively performed.

[0072] Although various embodiments of the present invention have been presented and described in the above description, the present invention is not necessarily limited thereto, and those skilled in the art will readily understand that various substitutions, modifications, and changes are possible within the scope of the technical concept of the present invention. Explanation of the symbols

[0073] 100 : Multiple low-orbit satellites 110: 1st Transmitter / Receiver 120 : Link control unit 130 : Onboard computer section 200 : Ground station equipment 210: 2nd Transmitter / Receiver 220 : Transmission command storage unit 230 : Satellite State Information Storage Unit 240 : Command execution verification section 250 : Remote Command Fax Unit

Claims

Claim 1 A plurality of low-orbit satellites performing the said multi-satellite mission according to a remote command for the multi-satellite mission; A ground station device that transmits the remote command to the plurality of low-orbit satellites, receives satellite status data corresponding to each of the plurality of low-orbit satellites from the plurality of low-orbit satellites, and performs command execution verification and remote command simulation for the multi-satellite mission using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data, respectively; wherein the ground station device comprises: a second transceiver that transmits the remote command to the plurality of low-orbit satellites and receives satellite status data from the plurality of low-orbit satellites; a transmission command storage unit that databases a plurality of transmission commands corresponding to the remote command according to the multi-satellite mission and the plurality of low-orbit satellites and stores them as transmission command information; a satellite status information storage unit that databases a plurality of satellite status information corresponding to the satellite status data according to the multi-satellite mission and the plurality of low-orbit satellites and stores them as satellite status information; and a command execution verification unit that verifies the execution of the remote command using the transmission command information and satellite status information and provides a remote command verification result. A remote command verification system for multiple satellites comprising: a remote command simulation unit that simulates execution on a time basis using the remote command verification result, the plurality of transmission commands, and the plurality of satellite status information. Claim 2 delete Claim 3 A multi-satellite remote command verification system according to claim 1, wherein the command execution verification unit verifies the execution of the remote command for the plurality of low-orbit satellites using a remote command list obtained from the transmission command information and a remote command execution time obtained from the satellite status information. Claim 4 A remote command verification system for multiple satellites according to claim 1 or claim 3, wherein each of the plurality of low-orbit satellites comprises: a first transceiver that receives the remote command transmitted from the ground station device and transmits the satellite status data to the ground station device; a link control unit that controls the first transceiver to perform a link connection with the ground station device; and an onboard computer unit that controls the overall satellite operation to perform the multiple satellite mission according to the remote command and controls the transmission of the satellite status data corresponding to each satellite to the ground station device. Claim 5 A step of performing a multi-satellite mission on a plurality of low-orbit satellites in accordance with a remote command for a multi-satellite mission transmitted from a ground station device; a step of receiving satellite status data corresponding to each of the plurality of low-orbit satellites from the plurality of low-orbit satellites at the ground station device; a step of performing command execution verification for the multi-satellite mission at the ground station device using transmission command information corresponding to the remote command and satellite status information corresponding to the satellite status data; The method further includes the step of performing a remote command simulation using the transmission command information and satellite status information at the ground station device; wherein the step of performing the multi-satellite mission comprises: database-ing a plurality of transmission commands corresponding to the remote command according to the multi-satellite mission and a plurality of low-orbit satellites and storing them as transmission command information in a transmission command storage unit provided in the ground station device; and, after the step of receiving the satellite status data, database-ing a plurality of satellite status information corresponding to the satellite status data according to the multi-satellite mission and a plurality of low-orbit satellites and storing them as satellite status information in a satellite status information storage unit provided in the ground station device; and the step of performing the command execution verification comprises: verifying the execution of the remote command using the transmission command information and satellite status information at a command execution verification unit provided in the ground station device and providing a remote command verification result, wherein the execution of the remote command for the plurality of low-orbit satellites is verified using a remote command list obtained from the transmission command information and a remote command execution time obtained from the satellite status information; and the step of performing the remote command simulation comprises: A method for verifying remote commands of multiple satellites, wherein a remote command simulation unit equipped in a ground station device performs simulation execution based on time using the remote command verification result, the plurality of transmission commands, and the plurality of satellite status information. Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete

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