Super-large scale real-time distributed strain measurement system

Abstract

The present invention discloses a super-large scale real-time distributed strain measurement system. The system comprises an application server and at least one CAN server connected with the application server, wherein each CAN sever is connected with a plurality of scene collection unit arrays through multiple CAN buses; the at least one CAN server can control the scene collection unit arrays toperform synchronous collection of strain information through the multiple CAN buses under the control of the application server, the scene collection unit arrays transmit the collected stain information to the at least one CAN server through the CAN buses, and the at least one CAN server transmits strain signals to the application server. Through adoption of a three-layer configuration mode, the super-large scale real-time distributed strain measurement system achieves synchronous collection of strain information by the scene collection unit arrays so as to solve the front-end collection, communication and synchronization problems of the distributed system and allow the distributed system to have distributed real-time collection, monitoring and parameter online regulation functions, and therefore, the measurement system can be applied to a large-scale test application and data collection system with more than 10000 points.

Description

technical field [0001] The invention relates to a super-large-scale real-time distributed strain measurement system. Background technique [0002] In the design of large-scale systems such as aircraft and ships, it is generally necessary to carry out strength tests or strength inspections. During the tests, large-scale or even ultra-large-scale stress signals must be collected synchronously and in real time to understand the stress distribution at various positions of the structure. Then find out the weak point of structural strength and strengthen it to improve the system design. In this type of experiment, real-time data acquisition of thousands or even more than 10,000 points is often required at the same time. Due to too many sampling points, there are many problems such as signal calibration, wiring, processing, and anti-interference. Not only the test preparation takes a long time, but also the test accuracy is not easy to guarantee. In addition, because there are to...

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Problems solved by technology

Due to too many sampling points, there are many problems such as signal calibration, wiring, processing, anti-interference, etc. Not only the test preparation takes a long time, but also the test accuracy is not easy to guarantee

In addition, because there are too many signals, real-time processing is difficult, and the measurement data are often analyzed after the event, so this type of test is mostly destructive, and the cost of the test is high

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