Variable frame structure telemetry method based on high capacity multiplex storage technology

Abstract

A variable frame structure telemetry method based on a high capacity multiplex storage technology comprises four steps of signal transformation; data collection and coding, multiplex storage and framing output, the signal transformation includes transformation from a physical quantity to an electric quantity and transformation from an electrical signal to an electrical signal, the transformation from the physical quantity to the electric quantity is realized by vibration, shock, overload, noise, temperature and pressure sensors, the transformation from the electrical signal to the electrical signal is realized by an electrical signal converter; the data collection and coding completes signal collection and coding to realize transformation from an analog quantity to a digital quantity; the multiplex storage step multiplexes data streams outputted by multiple data collection and coding devices to form one only data stream and realize data storage; the framing output is as follows: a multiplex storage device realizes variable frame format output by control of a control signal. The variable frame structure telemetry method has high flexibility, can meet high e capacity and high bit rate telemetry demands, and can adapt to different measurement and control variation.

Description

technical field [0001] The invention relates to a frame-changing structure telemetry method based on large-capacity multiplexing and storage technology, and belongs to the field of measurement and control communication systems. Background technique [0002] The telemetry system realizes the collection, transmission, processing and storage of parameters such as power, vibration, shock, temperature and air pressure on the aircraft, and provides reliable data for the analysis of aircraft test results and a reliable basis for aircraft improvement design. [0003] With the increase of the complexity of the aircraft, the number of aircraft telemetry parameters is increasing and the types are more diverse, which puts forward higher and higher requirements for the data storage capacity and real-time transmission channel capacity of the telemetry system. [0004] In order to meet the requirements of large-capacity, high-bit-rate storage and real-time transmission, methods such as mul...

AI Technical Summary

Problems solved by technology

The data preprocessing scheme can greatly reduce the amount of data transmitted by telemetry, but it will introduce delay problems, which is not applicable when the real-time requirements are high

Since data preprocessing is to analyze and transmit the data characteristic spectrum, it has data irrecoverability

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