Static structural testing data collection system based on Zigbee wireless communication

Abstract

The invention discloses a static structural testing data collection system based on Zigbee wireless communication. The Zigbee wireless network of the collection system adopts a star-shaped structure, and the data collection system includes a plurality of data collection terminal nodes, a coordinator node and a computer, wherein the data of strain, displacement and load, all collected by the data collection terminal nodes, are transmitted to the coordinator node in a wireless transmission mode, and the coordinator node is linked with the computer through USB to achieve the sending, reception and dispose of data; the data collection terminal nodes and the coordinator node all adopt a low-power-consumption design; power of the data collection terminal nodes is supplied by batteries, and power of the coordinator node is supplied by the computer through the USB; the system can be used in a condition without AC220 V of power. The data collection terminal nodes of the static structural testing data collection system based on Zigbee wireless communication can achieve the conversion and transmission of signals, data collection and data wireless transmission, and the static structural testing data collection system has the advantages of being simple in the integral system structure and pretty high in a price performance ratio, and decreasing workload and work strength by canceling a site arrangement of signal wires.

Description

technical field [0001] The invention relates to the technical field of structural static experiment data acquisition, in particular to a structural static experiment data acquisition system based on Zigbee wireless communication. Background technique [0002] Structural static test is a mechanical test to determine the strength, stiffness or stability of engineering structures under static loads. In addition to the loading test of the load-bearing parts of the structure, the overall or partial load-bearing performance test of the structure is also required. The experimental objects can be solid structures or models of aircraft, rockets, ships, large-scale equipment mechanical structures, or building structures such as steel structures, concrete structures, masonry structures, wood structures, etc., generally including beam-column structures, roof trusses Solids or models of structures, thin shells, grid structures, etc. [0003] The purpose of the structural static test is...

AI Technical Summary

Problems solved by technology

[0008] ①The price is high, the volume and weight are high, especially the transmitter cabinet is expensive, the volume and weight are relatively large, and it is not suitable for on-site use

[0009] ②In general, there are dozens to hundreds of various sensors placed on the structural static test object, and a lot of manpower and material resources are required for wiring and wiring

[0010] ③Wired signal transmission will bring common mode and differential mode interference, which will affect the quality of signal transmission and the accuracy of signal acquisition

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