Satellite telemetry data processing method and device based on event driving and computer storage medium

Abstract

The embodiment of the invention discloses a satellite telemetry data processing method and device based on event driving and a computer storage medium. The method comprises the following steps: comparing each data field in a first telemetry data packet acquired at the current acquisition moment with a corresponding data field in a target telemetry data packet to determine whether a set event occurs or not; generating a downloading telemetry data packet according to the changed data fields corresponding to the first telemetry data packet and the target telemetry data packet in response to the occurrence of the set event; and transmitting the downloaded telemetry data packet to a ground station through a downlink channel.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of satellite data processing, and in particular, to an event-driven satellite telemetry data processing method, device, and computer storage medium. Background technique [0002] Telemetry data is the data that is transmitted to the ground station through wireless channels after various measured information on the satellite is transformed, collected and arranged by sensors. Each satellite needs to transmit up to thousands of telemetry parameters, which directly reflect the working status and health of all the equipment on the satellite. Usually in the actual implementation process, telemetry data is fixed-length data, and a complete set of telemetry data is mostly composed of one or several telemetry data packets. [0003] Limited by the satellite downlink data rate, usually a complete set of downlink telemetry data also needs to be divided into several downlink telemetry data packets ...

AI Technical Summary

Problems solved by technology

The state reflected by most of the telemetry data can only be processed on the satellite and cannot be known by the satellite developers on the ground. This is very unfavorable for satellite status monitoring, especially for some abnormal states that appear instantaneously. It is difficult for the satellite developers on the ground to pass the downlink. telemetry data learned

[0004] In order to avoid the occurrence of the above situation, the current conventional scheme chooses to store the telemetry data generated on the satellite and use the high-speed data transmission channel to download it; this scheme requires additional data transmission equipment and corresponding ground receiving stations, which increases the complexity of satellite management and control; at the same time , Satellite measurement and control data is usually downloaded every time it passes through the border, and the real-time performance of the data cannot be guaranteed; moreover, high data rates mean high power consumption, which is not conducive to the current development trend of satellite miniaturization and integration

Another conventional solution will choose to improve the satellite measurement and control system, and use the link gain brought by new technologies such as spread spectrum to increase the data transmission rate; this solution also needs to increase the power consumption of the satellite measurement and control equipment, and requires a larger communication bandwidth. The required bandwidth is hundreds of times that of the traditional USB measurement and control system; although new technologies such as code division multiple access can alleviate the problem of bandwidth consumption, the spread spectrum code length is limited; at the same time, supporting updates for satellite and ground systems are also required. Not applicable to satellites currently in orbit and under research

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