JPH072200A - Failure prediction operation control device - Google Patents

Abstract

(57) [Summary] [Purpose] Immediately implement necessary measures in the event of an abnormal satellite to prevent it from suffering fatal damage. [Structure] An artificial satellite is simulated by a simulation device 6, the generated pseudo telemetry is diagnosed by a data diagnostic device 4, and a failure countermeasure command is generated in advance. At the next visible time, the telemetry from the artificial satellite is compared with the pseudo telemetry, and if they match, it is judged that the artificial satellite is abnormal, and a failure countermeasure command is transmitted to the artificial satellite. Therefore, failure diagnosis and failure countermeasure command transmission can be performed in the same visible time zone, and there is an effect that the artificial satellite is prevented from falling into a fatal situation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for launching an artificial satellite and then controlling the operation of the artificial satellite in orbit.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional operation control apparatus. This operation control apparatus transmits and receives telemetry data received from an artificial satellite 1 and command data to be sent to the artificial satellite 1 on the ground. The device 2, the data processing device 3 for processing these data, the data diagnostic device 4 for diagnosing these data, the human instruction to the data processing device 3 and the data diagnostic device 4, It consisted of an operations console device 5 for displaying device data.

Further, the data processing device 3 has a configuration shown in FIG.
In the software configuration shown in FIG. 1, each software means including a telemetry data processing means 11, a command data processing means 12, and a failure countermeasure command generating means 13 is incorporated, and the data diagnostic device 4 is commonly called "expert". It is composed of software of the failure diagnosis means 14 called "system" and software of the failure correction means 15 which is an expert system.

Next, the operation will be described. In the operation control device of the artificial satellite 1 configured as described above, the telemetry data signal A from the artificial satellite 1 is input to the data processing device 3 via the ground receiving / transmitting device 2, and the software shown in FIG. Each means is implemented by means 11 to 15.

A processing time chart of each of these means is shown in FIG. In FIG. 8, an artificial satellite that orbits the earth as viewed from the ground station is assumed, and the visible time during which the artificial satellite 1 can be controlled from the ground station is limited. The horizontal direction indicates time, and in the operation of the artificial satellite 1, visible a,
Telemetry reception and command transmission are possible on the ground only in the visible time zones of visible b and visible c. It is assumed that a command is transmitted to the artificial satellite 1 in the visibility a, which includes n timer commands executed at times t1 to tn. The n timer commands are executed in the invisible time zone between visible and visible using the timer of the artificial satellite 1. In the next visible range b, the telemetry data signal A is received from the artificial satellite, and the telemetry data processing means 11 executes telemetry frame expansion and engineering value conversion.

The data diagnostic device 4 uses the engineering value telemetry signal B to perform a diagnosis as to whether or not there is a failure in the artificial satellite 1 after the n commands have been executed by the failure diagnosis means 14, and the failure is detected. If judged, the diagnostic result signal C
Based on the above, a countermeasure for correcting the fault is prepared by the fault correcting means 15 and the fault countermeasure signal D is generated. This failure countermeasure signal D
In the data processing apparatus 3, the failure countermeasure command generating means 13 generates a failure countermeasure command E for correcting the failure, and the command signal F is transmitted to the artificial satellite 1 via the ground receiving / transmitting apparatus 2.

[0007]

Since the combination of n command sequences executed in the invisible time zone changes flexibly depending on the operating situation, the command sequence to be executed may be transmitted without any prior check. .
If there is an error in the transmitted command sequence and a failure occurs in the artificial satellite 1, the conventional operation control system is configured as described above, so that the visible b
There was a problem in that the failure diagnosis of the telemetry received at was delayed and the artificial satellite 1 fell into a fatal situation.

The present invention has been made in order to solve the above-mentioned problems, and performs failure diagnosis, failure countermeasure planning, and failure countermeasure command generation in advance, and immediately transmits a failure countermeasure command at the time of failure to This is to minimize the influence of the failure of the satellite 1.

[0009]

A failure prediction operation control apparatus according to the present invention includes a conventional control apparatus, a telemetry comparison means, a telemetry trend comparison means, a simulation apparatus, and a simulation means as software in the simulation apparatus. It is added.

[0010]

In the failure prediction operation control device according to the present invention, the artificial satellite simulation device is preliminarily implemented by the simulation device, and the pseudo telemetry data generated there is used for fault diagnosis and fault countermeasure planning to generate the fault countermeasure command. Keep it. Then, if the telemetry from the artificial satellite is compared with the pseudo telemetry generated by the simulation device and they match, and if the failure diagnosis result using the pseudo telemetry is determined to be a failure, the artificial satellite is also determined to be a failure. Then, send the prepared failure countermeasure command to the satellite. Therefore, there is an advantage that the failure can be immediately dealt with because the failure can be determined and the failure countermeasure command can be transmitted within the same visible time period when the actual telemetry from the artificial satellite is received.

[0011]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a failure prediction operation control device. In the figure, 1 to 5 are the same as the conventional operation control device shown in FIG. Reference numeral 6 denotes a simulation device that executes the simulation of the artificial satellite 1 in a shorter time than real time.

FIG. 2 shows a software configuration, and 11 to 15 are the same as the conventional means shown in FIG. 16 is a simulation means,
Reference numeral 17 is a telemetry comparison means.

Next, the flow of processing will be described with reference to the time chart of FIG. In the visibility a, the command data signal F is transmitted to the artificial satellite 1, and the command having the same content is transmitted as the pseudo command data signal G to the simulation device 6. In the artificial satellite 1, n timer commands are visible a and visible b as in the conventional means shown in FIG.
During the invisible time period, the simulation device 6 uses the pseudo command to perform the simulation in a shorter time than the real time to generate the pseudo telemetry data signal H. That is, the simulation device 6 is shown in FIG.
The simulation is carried out at the time of the operation Ts of the artificial satellite 1 in the time period of T. ts1, ts2, ... t
sn is a simulation time corresponding to t1, t2, ... Tn in real time, respectively.

In the data diagnosing device 4, the fault diagnosing means 14 uses the pseudo telemetry data signal H to make a diagnosis as to whether or not a fault has occurred, and a diagnosis result signal C is generated. A countermeasure to be corrected is planned and a failure countermeasure signal D is generated. Using the failure countermeasure signal D, the data processing apparatus 3 uses the failure countermeasure command generating means 1
The failure countermeasure command signal E is generated in accordance with 3.

In the visible range b, the data processing device 3 converts the telemetry from the artificial satellite 1 into the telemetry data processing means 11
The engineering value is converted by the telemetry comparison means 17 and the engineering value telemetry data signal B and the simulation device 6 are used.
Compare the pseudo telemetry data signal H generated by
If they match and the failure diagnosis result using pseudo telemetry determines that the satellite 1 has failed, the command data processing means 12 outputs the command data signal based on the failure countermeasure command signal E. Generate F and send. As a matter of course, when the data diagnostic device 4 determines that the fault diagnosis using the pseudo telemetry is normal, even if the results of the telemetry and the pseudo telemetry match, that means normal and the fault countermeasure command is generated and transmitted. Absent.

Example 2. Next, another embodiment of the present invention will be described with reference to the drawings. The overall construction of the second embodiment of the present invention is the same as that of the embodiment shown in FIG. FIG. 4 shows the configuration of the software, 11 to 17 are the same as those in the first embodiment shown in FIG. 2, and 18 is the simulation apparatus 6 that generates the trend of the engineering value telemetry data signal B from the artificial satellite 1. It is a telemetry trend comparison means for comparing with the trend of the pseudo telemetry data signal H, and determines whether or not the artificial satellite matches the simulation result together with the instantaneous telemetry comparison result of the telemetry comparison 17.

FIG. 5 is a time chart for the second embodiment.
Shown in. In FIG. 5, the execution of the failure countermeasure command generating means 13 in the data processing device 3 is similar to the time chart of the first embodiment shown in FIG. In FIG. 5, the telemetry trend comparison means 18 performs engineering value conversion by the telemetry data processing means 11 during a predetermined time of visible b, and the engineering value telemetry data signal B and the pseudo telemetry data signal H.
Compare the trends of. When the telemetry trend comparison results match and the instantaneous telemetry comparison by the telemetry comparing means 17 matches, it is considered that the artificial satellite 1 and the simulation result match. Then, if it is determined that the failure is determined by the failure diagnosis result by the pseudo telemetry, the artificial satellite 1 determines that the failure occurs and transmits the command data signal F for correcting the failure.

The processing means 1 described in the above embodiment
Although it has been described that the software 6, 17, and 18 are software, hardware and firmware may be used, or these may be mixed, as long as similar functions and performances are obtained.

The data processing device 3, the data diagnostic device 4, and the simulation device 6 may be implemented by a single computer.

Further, in the description of the above embodiments, the case where the present invention is applied to the operation control device of the artificial satellite is described, but the present invention is not limited to the artificial satellite and can be applied to the aircraft, the ship, the vehicle, etc. It goes without saying that it can be used for the general operation control equipment required.

[0021]

According to the failure prediction operation control apparatus of the present invention, the operation of the artificial satellite is simulated in a shorter time than the real time, the failure diagnosis and the failure correction measure are prepared in advance, and the telemetry data from the artificial satellite is calculated. In order to determine whether or not there is a failure by comparing the simulated telemetry data with the simulated telemetry data, it is possible to immediately determine the failure of the satellite due to the lack of a command sequence and send the failure countermeasure command, which may cause a fatal situation in the satellite. There is an advantage of preventing.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment and a second embodiment of the present invention.

FIG. 2 is a software configuration diagram showing a first embodiment of the present invention.

FIG. 3 is a time chart showing the operation of the first embodiment of the present invention.

FIG. 4 is a software configuration diagram showing a second embodiment of the present invention.

FIG. 5 is a time chart showing the operation of the second embodiment of the present invention.

FIG. 6 is an overall configuration diagram showing a conventional technique.

FIG. 7 is a software configuration diagram showing a conventional technique.

FIG. 8 is a time chart showing the operation of the conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Satellite 2 Ground receiving / transmitting device 3 Data processing device 4 Data diagnostic device 5 Operation console 6 Simulation device 11 Telemetry data processing means 12 Command data processing means 13 Failure countermeasure command generating means 14 Failure diagnosing means 15 Failure correcting means 16 Simulation means 17 Telemetry comparison means 18 Telemetry trend comparison means A Telemetry data signal B Engineering value telemetry data signal C Diagnostic result signal D Failure countermeasure signal E Failure countermeasure command signal F Command data signal G Pseudo command data signal H Pseudo telemetry data signal

Claims (3)

[Claims] 1. A data processing device for processing operation control data, and a pseudo command from the data processing device are inputted to carry out a simulation of an artificial satellite in advance.
A simulation device for generating pseudo telemetry, a data diagnostic device connected to the data processing device and the simulation device for diagnosing the pseudo telemetry generated by the simulation device and devising a failure countermeasure, the data processing device, the simulation device and the data diagnostic device And a telemetry data processing means incorporated in the data processing device as software, a command data processing means, a failure countermeasure command generating means, and a simulation means incorporated in the simulation device as software. And a fault diagnosing means incorporated in the data diagnosing device as software, and a fault correcting means for devising a measure for correcting the fault based on the diagnostic result. Comparing the telemetry from Li and satellites, failure prediction operation control apparatus characterized by comprising a telemetry comparison means used in the failure determination. 2. In addition to the above telemetry comparison means, a telemetry trend data comparison means for comparing the trends of pseudo telemetry from a simulation device and telemetry from an artificial satellite is provided, and the results are used together for failure determination. The failure prediction operation control device according to claim 1. 3. A data processing device for processing operation control data, and a pseudo command from the data processing device are input to carry out a simulation of an artificial satellite in advance.
A simulation device for generating pseudo telemetry, a data diagnostic device connected to the data processing device and the simulation device for diagnosing the pseudo telemetry generated by the simulation device and devising a failure countermeasure, the data processing device, the simulation device and the data diagnostic device And a telemetry data processing means incorporated in the data processing device as software, a command data processing means, a failure countermeasure command generating means, and a simulation means incorporated in the simulation device as software. And a fault diagnosing means incorporated in the data diagnosing device as software, and a fault correcting means for devising a measure for correcting the fault based on the diagnostic result. Comparing trends telemetry from Li and satellites, failure prediction operation control apparatus characterized by comprising a telemetry trend comparison means used in the failure determination.