Rocket measurement system and fault detection method

Abstract

The invention discloses a rocket measurement system and a fault detection method. The rocket measurement system comprises a processor and a plurality of detection devices. Wherein the processor and the plurality of detection devices are connected in series through cables to form an annular network structure, so that signals sent by any one of the processor and the plurality of detection devices can be received by other equipment configured in the annular network structure. Wherein the plurality of detection devices are used for detecting state parameter signals of the vehicle, the processor isused for acquiring signals of the vehicle in a flight stage and sending a signal acquisition instruction to the plurality of detection devices according to the flight stage, and the signal acquisition instruction comprises address information corresponding to at least one of the plurality of detection devices. And the plurality of detection devices receive the signal acquisition instruction, andthe detection device matched with the address information returns the detected state parameter signal to the processor. The rocket measurement system provided by the invention can conveniently expandmeasurement points and replace faulty cables, and the universality of the measurement system is greatly improved.

Description

[0001] This application is submitted on May 28, 2018, and is a divisional application for an invention patent named "Space Vehicle Measurement System" and application number "201810521376.5". technical field [0002] The invention relates to the technical field of rocket measurement, in particular to a rocket measurement system and a fault detection method. Background technique [0003] In order to ensure that the space vehicle (for example, the vehicle can be a rocket or a missile) works normally, it is necessary to detect various parameters during its flight. For example, these parameters may include power parameters and non-power parameters. Among them, non-electrical parameters include temperature, pressure, vibration and noise. In the detection of non-electrical parameters, electrical sensors are usually used to sense non-electrical parameters and convert them into standard voltage signals of 0-5V. The acquisition of non-electrical parameters by the carrier generally ...

AI Technical Summary

Problems solved by technology

[0005] However, the existing vehicle measurement system architecture is inflexible, and for different rockets, it is often necessary to redesign and arrange the cable network of the measurement system, thus prolonging the development cycle and increasing production costs

[0006] In addition, when the existing measurement system takes samples during the take-off and acceleration phases of the vehicle, it does not distinguish the sampling frequency and signal type according to the flight phase of the vehicle, which will lead to too many or too complicated sampling signals. This is not conducive to the accurate measurement of the state of the carrier, and may even cause interference with the sampling parameter signal

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