Speed-grading and impact signal flexible collecting method

Abstract

The invention provides a speed-grading and impact signal flexible collecting method. Multiple channels of programmable-control analog switches are in parallel connection or cascaded connection to achieve the purpose of gating and collecting super-multiple channels of signals. An on-site programmable logic device is utilized to previously set the gating sequence of the multiple channels of signals and the gating ranges of the switches to achieve a flexible data collecting method. Thus, the work efficiency of a remote measuring system is greatly improved. Meanwhile, by means of a flexible design method, a collecting circuit can be designed adaptively according to different requirements. Compared with traditional circuit measurement, the application universality of the speed-grading and impact signal flexible collecting method is improved.

Description

technical field [0001] The invention relates to a flexible collection method of slow-variable and impact signals, which is used for collecting and processing large-capacity multi-path slow-variable signals and impact signals, and belongs to the technical field of information collection of aerospace telemetry technology. Background technique [0002] With the demand for large data volume and refined measurement, the integrated collection and processing of ultra-large-capacity data has become the development trend of information collection technology. [0003] The traditional analog signal acquisition and transformation device mainly adopts a single-channel acquisition method, and the design of the acquisition circuit is huge and complex. Several single-unit devices of this type are required for each bullet to complete the acquisition and transformation of the system's slow-change signal and impact signal. The information channel The sequence of arrangement depends on the impl...

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Problems solved by technology

[0003] The traditional analog signal acquisition and transformation device mainly adopts a single-channel acquisition method, and the design of the acquisition circuit is huge and complex. Several single-unit devices of this type are required for each bullet to complete the acquisition and transformation of the system's slow-change signal and impact signal. The information channel The order of arrangement depends on the implementation of the back-end equipment. The channel information and the acquisition order of each signal cannot be flexibly controlled, and cannot meet the real-time acquisition and conversion processing requirements of large data volume and multi-channel signal parameters.

[0004] If the data processing method of multi-channel AD chip acquisition and conversion is adopted, the design of the front-end conversion circuit for different types of signals is huge and complex, and the military multi-channel AD chip itself is relatively large, and multiple AD chips need to be designed in parallel to achieve super multi-channel signals. Acquisition and transformation cannot meet the requirements of equipment miniaturization and high integration

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