JP3048392B2 - Satellite monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial satellite monitoring apparatus used for operating an artificial satellite from the ground, for example.

[0002]

In general, in the satellite monitoring system, artificial as telemetry data sensor data from each sensor provided in the various components of the satellite 1, as shown in FIG. 3 via telemetry command system The information is sent to the satellite monitoring device 2, and a monitor (operator) determines whether each component is normal or abnormal based on the telemetry data, and monitors the artificial satellite 1. And in the artificial satellite monitoring device in such a monitoring system, the artificial satellite 1 required in recent space development is used.
With the the upsizing, the sensor data is increased, by the telemetry data to be subjected to the monitoring is increased, an accurate monitoring of the telemetry Ride over data by the monitoring person has become difficult.

Therefore, in the conventional artificial satellite monitoring apparatus, a threshold value is set in advance for each telemetry data, and when telemetry data is inputted in step S1 as shown in FIG. 4, it is set in advance in step S2. In comparison with the value, it is determined whether the threshold value has been exceeded. here,
If yes (YES) is determined in step S2, it is determined to be abnormal, and if no (NO) is determined, it is determined to be normal. In a state where this abnormality is determined, for example, an abnormality display including an alarm is performed, and the monitor is alerted to the abnormal state.

[0004] However, in the above satellite monitoring device, if the attitude becomes abnormal, for example, the components increase due to the occurrence of abnormalities in other components, such as a change in the power generated by the solar battery paddle in conjunction therewith. The more it becomes, the more difficult it becomes to identify accurately which component has an abnormal part. According to this, it is difficult to take prompt measures for abnormal parts, which is extremely dangerous in satellite operation.

[0005]

As described above, the conventional satellite monitoring apparatus has a problem that it is difficult to accurately identify whether a component is abnormal.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an artificial satellite monitoring apparatus which has a simple configuration and is capable of accurately identifying an abnormal portion of a satellite.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a detecting means for detecting a state in which telemetry data from an artificial satellite exceeds a threshold value as an abnormality, and a telemetry corresponding to a failure mode.
The failure mode in which the display indicating the abnormal
A telemetry correspondence matrix is stored, and
In response to the detection of telemetry data abnormality, the abnormal telemetry
The metadata is stored in the failure mode / telemetry compatible matrix.
And an identification means for identifying an abnormal part of the on- board component as compared with the satellite.

[0008]

According to the above configuration, Tele cytometry data threshold
Value is detected as abnormal telemetry data.
Then, the display indicating the telemetry abnormality corresponding to the failure mode is compared with a failure mode / telemetry correspondence matrix in which pattern recognition is performed, and an abnormal portion of the mounted component is identified. Therefore, the identified on-board components
Immediate measures can be taken for abnormal parts of the satellite, which contributes to the improvement of safety in satellite operation.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an artificial satellite monitoring apparatus according to an embodiment of the present invention. In step S1, sensor data of an on-board component from an artificial satellite is input as telemetry data. Then, in step S2, it is detected whether or not the input telemetry data has exceeded the preset threshold based on the threshold. Here, the state exceeding the threshold value in step S2 is detected as abnormal telemetry data, and the process proceeds to step S3. Step S3
Then, after comparing the abnormal telemetry data with the failure mode / telemetry correspondence matrix provided as a database, the abnormal part is identified in step S4. This failure mode / telemetry correspondence matrix is set in advance on the ground based on a simulation, for example, as pattern recognition in which the telemetry corresponding to the failure mode is displayed as "F" as shown in FIG. An abnormal part is identified by the F display pattern on the matrix. For example, when the F display is performed a plurality of times due to the failure mode, a weight is added to the F display for each failure mode, and an abnormal portion having the highest weight value in the pattern is identified. Then, in step S5, the observer sends the countermeasure information of the identified abnormal part as a command to the artificial satellite side to operate the abnormal part. In step S2, if the telemetry data does not exceed the threshold, the telemetry data is detected as normal.

As described above, the satellite monitoring apparatus compares the abnormal telemetry data with the failure mode / telemetry correspondence matrix in which the display indicating the telemetry abnormality corresponding to the failure mode is pattern-recognized.
It is configured to identify an abnormal part based on a telemetry correspondence matrix. According to this, since the abnormal part of the mounted component can be accurately identified, prompt measures for the abnormal part can be easily realized, and the safety in satellite operation can be improved. Note that the pattern recognition of the failure mode / telemetry correspondence matrix according to the present invention is not limited to the above embodiment, and various patterns can be used. Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, and that various modifications can be made without departing from the scope of the present invention.

[0012]

As described above in detail, according to the present invention, it is possible to provide an artificial satellite monitoring apparatus which has a simple configuration and is capable of accurately identifying an abnormal portion of a satellite.

[Brief description of the drawings]

FIG. 1 is a flowchart shown to explain an artificial satellite monitoring device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a failure mode telemetry matrix of FIG. 1;

FIG. 3 is a diagram showing an artificial satellite monitoring system to which the present invention is applied.

FIG. 4 is a flowchart for explaining a conventional artificial satellite monitoring apparatus.

[Explanation of symbols]

 1. Artificial satellite 2. Artificial satellite monitoring device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B64G 1/10 B64G 3/00

Claims (1)

(57) [Claims] 1. A detecting means for detecting, as an abnormality, a state in which telemetry data from an artificial satellite exceeds a threshold value, and a display indicating a telemetry abnormality corresponding to a failure mode.
Failure mode / telemetry compatible matrix
The telemetry data of the detection means.
In response to the detection, the abnormal telemetry data is stored in the failure mode.
On-board telemetry
An artificial satellite monitoring device comprising: identification means for identifying an abnormal part of a component .