Data acquisition method applicable to new type low orbit satellite platform

A technology of data acquisition and low-orbit satellites, which is applied in the field of aerospace electronics, can solve problems such as inaccurate data acquisition, and achieve the effect of increasing transmission speed and improving utilization rate

Active Publication Date: 2016-04-06
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a data acquisition method suitable for a new type of low-orbit satellit

Method used

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  • Data acquisition method applicable to new type low orbit satellite platform
  • Data acquisition method applicable to new type low orbit satellite platform
  • Data acquisition method applicable to new type low orbit satellite platform

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Embodiment Construction

[0031] Sending data from a remote terminal to a bus controller is called a data acquisition transfer. This process is realized by querying the acquisition transfer request (ATR) of the remote terminal.

[0032] The user at the remote terminal indicates that new data is ready and starts data transfer to the bus controller. The user at the bus controller end reads the incoming data acquisition transfer request of the new data, and starts sending the data from the remote terminal sending buffer in the next communication frame. This method supports only one get transfer from each remote terminal at a given time. If there are multiple get transfer data to send, the remote terminal application should sort the fetch data blocks in its internal buffer.

[0033] According to the remote terminal's request, the bus controller application checks whether the data is complete and correct, and returns an Acquire Transmission Acknowledgment (ATC), indicating that the data has been transmitte...

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Abstract

The invention discloses a data acquisition method applicable to a new type low orbit satellite platform. The method is based on a 1553B bus and searches a data transmission request sent by a remote terminal through a bus controller so as to finish the data acquisition function. Firstly, a remote control terminal finishes preparing the data needed to be sent and sends the data transmission request to the bus controller; then the bus controller searches the transmission request of the remote terminal and takes away corresponding data from the remote terminal according to the request content, finally, the bus controller sends data transmission finish confirmation to the remote terminal. The method of the invention ensures that the data transmitted by the remote terminal is complete, prevents telemeasuring data errors resulted from not updating the data timely, and simultaneously improves the utilization rate of the bandwidth usage efficiency of the bus.

Description

technical field [0001] The invention belongs to the technical field of aerospace electronics and relates to a data acquisition method suitable for a new low-orbit satellite platform. Background technique [0002] During the in-orbit operation of the low-orbit satellite platform, the telemetry parameters transmitted by the satellite mainly include the temperature, voltage, current, pressure, state, and count value of each part. These telemetry parameters are currently the main way for people to monitor the working status of spacecraft components. . Therefore, the method of data acquisition is the core function of the low-orbit satellite platform in orbit. [0003] The low-orbit satellite platform telemetry data is unprocessed raw data expressed in binary form, that is, the telemetry source code. The current method for acquiring telemetry data is that the bus controller directly requests the telemetry data stored in the corresponding buffer area periodically, without confirm...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/40H04B7/185
CPCH04B7/18513H04L12/40013H04L41/0806H04L41/0816H04L41/083H04L41/0869
Inventor 孟亮邓晓彬王宇鹏
Owner BEIJING SATELLITE MFG FACTORY
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