JP2713970B2 - Satellite operation method and operation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention relates to a method and an apparatus for operating an artificial satellite in which, for example, an observation satellite is operated inside the satellite.

(Prior Art) As is well known, an artificial satellite prepares an operation plan according to an operation request for the satellite at a ground station monitoring the satellite, orbit information of the satellite, and a state inside the satellite obtained by telemetry, and the operation plan is created. On the basis of this, a command for operating each device such as an observation sensor, an observation data recording device, and an observation data transmission device mounted on the satellite is created, and this command is transmitted from the ground station side to the satellite side to transmit the command. It is operated by operating the equipment.

However, in the above-mentioned operation, since the operation plan of the satellite is created on the ground station side and a command for executing the operation plan is created, the work amount on the ground station side is enormous. Therefore, when various operations are required due to an increase in the use of artificial satellites, it is strongly desired that the satellite side can respond to various operation requests as compared with the related art.

(Problems to be Solved by the Invention) As described above, conventionally, an operation plan of a satellite is created in a ground station, and a command for operating each device mounted on the satellite is created. The amount of work was increasing.

Therefore, an object of the present invention is to transmit a simple operation request to a satellite, thereby creating an operation plan and a command for operating an on-board device while monitoring the internal state of the satellite on the satellite side. The present invention is to provide an artificial satellite operation method and operation device for reducing the work in the above.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, a method for operating an artificial satellite according to the present invention provides a method of operating an artificial satellite, which comprises: The operation request information for the artificial satellite is created and transmitted to the artificial satellite. The satellite receives the orbit information of the artificial satellite transmitted from the ground station and the operation request information for the artificial satellite. Monitoring the satellite orbit information and operation request information for the received satellite, and operating the artificial satellite inside the artificial satellite based on information on the state inside the monitored artificial satellite, The operation of the artificial satellite performed inside the artificial satellite is based on the operation request from the ground station and the operation of the equipment mounted on the artificial satellite according to the orbit information of the artificial satellite. Calculate the time, judge the calculated operation of the on-board equipment and the time based on the constraint set in advance for the satellite, and satisfy the constraint set in advance for the satellite according to the judgment result. In order to create a satellite operation plan by correcting the calculated operation of the on-board device and its time so as to operate the device mounted on the satellite in accordance with the created operation plan of the satellite Command is created.

Further, the artificial satellite operating device according to the present invention, receiving means for receiving the satellite orbit information transmitted from the ground station and operation request information for the artificial satellite, monitoring means for monitoring the state inside the artificial satellite, Operating means for operating the artificial satellite inside the artificial satellite based on the orbit information of the artificial satellite and the operation request information for the artificial satellite received by the receiving means, and the information on the state inside the artificial satellite monitored by the monitoring means; Wherein the operating means comprises: equipment operation timing calculating means for calculating the operation of the equipment mounted on the artificial satellite and its time according to the operation request from the ground station and the orbit information of the artificial satellite; The operation of the mounted device and its time calculated by the device operation timing calculating means based on the constraints A constraint condition judging means to determine the operation of the on-board equipment and its time calculated by the equipment operation timing calculating means so as to satisfy a constraint condition preset for the artificial satellite according to the judgment result of the constraint condition judging means. Operation plan creating means for creating an operation plan of an artificial satellite by doing, and a command for creating a command for operating a device mounted on the artificial satellite in accordance with the operation plan of the artificial satellite created by the operation plan creation means And a creation means.

(Operation) With the above configuration, the present invention receives satellite operation request information and satellite orbit information transmitted from the ground station side on the satellite side,
The system monitors information on the state of the inside of the satellite, creates an operation plan to satisfy the operation requirements within the range of the conditions on the inside of the satellite and the satellite orbit conditions set in advance based on this information, and further installs the satellite on the satellite. By creating a command for operating each device, the amount of work at the ground station can be significantly reduced.

Example An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an apparatus according to one embodiment of the present invention. In FIG. 1, a receiving unit 1 receives satellite orbit information transmitted from a ground station or another satellite and operation request information such as an observation request for the satellite. Observation requests sent to satellites have simple contents in order to reduce work on the ground, such as the observation target area, observation sensors to be used, whether or not observation data recording devices are used, and the transmission destination of observation data (observation data). (Including satellites and ground stations that relay transmissions). The satellite state monitoring unit 3 monitors parameters indicating the state inside the satellite that may restrict the observation request, such as current, voltage, and temperature. The satellite operation unit 2 creates a satellite operation plan in accordance with the satellite orbit information, operation request information, and information on the internal state, and creates a command for operating each device mounted on the satellite based on the operation plan.

FIG. 2 is a block diagram showing the configuration of the satellite operation unit 2. In FIG. 2, a calculation control unit 4 controls a calculation procedure and the like for creating a satellite operation plan. The device operation timing calculation unit 5 that calculates the operation timing of each device includes:
The operation time of each device is calculated based on the operation request information. Note that this calculation is based on data stored in the database 10, such as position information of the observation target area, viewing condition information of the observation sensor, position information of a satellite that relays the observation data, position information of a ground station that obtains the observation data, and the like. This is done by using Further, the equipment operation timing calculation unit 5 calculates the operation of the observation equipment, for example, the observation sensor, the observation data storage device, the observation data transmission device, and the like, based on the orbit information of the satellite and the data stored in the database 10, and the time thereof. .

The constraint condition judging unit 6 determines whether the satellite is safe in terms of power and heat when the designated device operates, whether the remaining capacity of the observation data recording device is sufficient, the transmission of the observation data transmission device. Whether or not the capability is sufficient is determined with respect to the constraint condition. In this determination, the operation and the time of the on-board equipment calculated by the equipment operation timing calculation unit 5, the information on the state inside the satellite monitored by the satellite state monitoring unit 3, and the database
Data indicating a constraint condition for each device stored in 10 is used.

The operation plan creation unit 7 corrects the operation of the on-board equipment calculated by the equipment operation timing calculation unit 5 and its time so as to match the constraint condition according to the determination result of the constraint condition determination unit 6, and creates a satellite operation plan. I do. For example, if a result indicating that the satellite is not power-safe is obtained, an operation of stopping observation is performed. Alternatively, it is possible to store the use priority of the observation sensor in the database 10 and perform an observation by the observation sensor having a higher use priority in response to an observation request using a plurality of observation sensors. The command creating unit 8 uses the data stored in the database 10 to translate the data into commands to be output to each on-board device according to the satellite operation plan created by the operation plan creating unit 7.

The database management unit 9 supplies necessary data to the device operation timing calculation unit 5, the constraint condition determination unit 6, the operation plan creation unit 7, and the command creation unit 8,
The data of the database 10 is updated according to the data change request information included in the operation request information.

 Next, the operation of the present device will be described.

The satellite operation request information and the orbit information transmitted from the ground station are received by the receiver 1 of the satellite. Information on the state inside the satellite is monitored by the satellite state monitor 3. These pieces of information are input to the satellite operation unit 2 to create a satellite operation plan and create a command for operating each device mounted on the satellite based on the operation plan.

Here, the equipment operation timing calculation unit 5 in the satellite operation unit 2 mounts the satellite on the satellite based on the operation request information and the orbit information of the satellite received by the reception unit 1 and the information on the state inside the satellite monitored by the monitor unit 3. The operation of each device and its time are calculated, and the constraint condition judging unit 6 judges whether or not the calculation result is within the range of the preset constraint condition of the satellite. If the result calculated by the device operation timing calculation unit 5 is out of the range of the constraint condition, the operation plan creation unit 7
Are modified so as to satisfy the constraints, and a satellite operation plan is created. The operation plan created by the operation plan creation unit 7 is used by the command creation unit 8 to create a command for operating the equipment mounted on the satellite.

By operating this device as described above, an operation plan is created inside the satellite by transmitting simple information from the ground station to the satellite side, and the equipment mounted on the satellite is operated according to this operation plan. Since a command for causing the ground station can be created, work on the ground station side can be reduced.

The present invention is not limited to the above embodiment, and can be modified and implemented within the scope of the present invention.

[Effects of the Invention] As described above, according to the present invention, a satellite operation plan is created inside a satellite, and a command for operating equipment mounted on the satellite is created according to the operation plan. It is possible to provide an artificial satellite operation method and an operation device for reducing the operation of creating an operation plan in a ground station.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, and FIG. 2 is a block diagram showing a configuration of a satellite operation unit in FIG. Reference Signs List 1 ... Reception unit 2 ... Satellite operation unit 3 ... Satellite status monitor unit 4 ... Calculation control unit 5 ... Equipment operation timing calculation unit 6 ... Constraint condition judgment unit 7 ... Operation plan Creation department,
8 Command creation unit 9 Database management unit 10
…… a database.

Claims (2)

(57) [Claims] 1. A ground station monitoring an artificial satellite creates orbit information of the artificial satellite and operation request information for the artificial satellite and transmits the information to the artificial satellite. Receiving the orbit information of the artificial satellite and the operation request information for the artificial satellite, and monitoring the state of the inside of the artificial satellite, and receiving the received orbit information of the artificial satellite and the operation request information for the artificial satellite; Operating the artificial satellite inside the artificial satellite based on the information on the state of the artificial satellite, wherein the operation of the artificial satellite performed inside the artificial satellite is performed according to the operation request from the ground station and the orbit information of the artificial satellite. Calculate the operation of the device mounted on the and its time, based on the constraints set in advance on the satellite, the calculated operation of the mounted device Determine the time, create a satellite operation plan by correcting the calculated operation of the on-board equipment and the time to satisfy the constraints set in advance on the satellite according to the determination result, A method for operating a satellite, comprising: creating a command for operating a device mounted on the satellite according to the created operation plan of the satellite. 2. A receiving means for receiving orbit information of an artificial satellite and operation request information for the artificial satellite transmitted from a ground station, a monitoring means for monitoring a state inside the artificial satellite, and an artificial satellite received by the receiving means. Operating means for operating the artificial satellite inside the artificial satellite based on satellite orbit information and operation request information for the artificial satellite, and information on the state inside the artificial satellite monitored by the monitoring means, Based on operation requests from ground stations and orbital information of the satellite, equipment operation timing calculation means for calculating the operation of the equipment mounted on the satellite and its time, and based on constraints set in advance for the satellite Condition judging means for judging the operation of the on-board device calculated by the device operation timing calculating unit and its time The operation of the artificial satellite by correcting the operation of the on-board equipment calculated by the equipment operation timing calculating means and its time so as to satisfy the constraint set in advance for the artificial satellite according to the determination result of the restriction condition determining means. Operation plan creation means for creating a plan, and command creation means for creating a command for operating the equipment mounted on the satellite according to the operation plan of the satellite created by the operation plan creation means, Characteristic satellite operation device.