Launch vehicle measuring system

Abstract

The invention discloses a launch vehicle measuring system, which comprises a processor and multiple detection devices, wherein the processor and the multiple detection devices are serially connected through a cable to form an annular network structure, and signals transmitted by the processor and any of the multiple detection devices can be received by other devices configured in the annular network structure; the multiple detection devices are used for detecting the state parameter signals of the vehicle; the processor is used for acquiring the signals of the flight stage of the vehicle and transmitting a signal acquisition instruction to the multiple detection devices according to the flight stage, and the signal acquisition instruction contains the address information of at least one ofthe multiple detection devices; and the multiple detection devices receive the signal acquisition instruction, and the detection device matched with the address information returns the detected stateparameter information to the processor. According to the launch vehicle measuring system disclosed in the invention, expansion of measuring points and replacement of fault cables can be carried out conveniently, and the generality of the measuring system is greatly improved.

Description

technical field [0001] The invention relates to the technical field of vehicle measurement, in particular to a space vehicle measurement system. Background technique [0002] In order to ensure that the carrier (for example, the carrier can be a launch vehicle 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, etc. 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 collection of non-electrical parameters by the vehicle generally adopts a system architecture of hierarchical and nearby collection and compilation. That is, each sub-level is equipped with a converter and an editor, which are used for power supply and parameter acquisitio...

AI Technical Summary

Problems solved by technology

[0004] 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

[0005] 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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