Method for archiving and retrieving telemetry in a satellite control center
US6052588A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18519
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for storing and retrieving telemetry which can reduce the size of a data storage tape and the time for retrieving data by overcoming the problems in a conventional satellite control system wherein all telemetry received from a satellite are stored without being subject to a filtering operation in a hard disk or memory of a computer for a predetermined time, and when needs arise for replaying previously stored data, a tape which stores required data is first located and mounted on a driver in order to load the required data. In accordance with the method of the present invention, data is filtered with respect to a variation of each telemetry. The data is stored step by step according to the period for which data should be stored. The data which should be stored for a long term is compressed and stored as an average value, maximum value, minimum value and variance of daily data. The generation and storage of long term data are offline processed. A data storage catalog is generated and stored into a data storage device. Thus, according to the present invention, the capacity of the data storage device and the retrieval time for replay can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.