Carbon nano tube cement based composite sensor testing system

Abstract

Disclosed is a carbon nano tube cement based composite sensor testing system. A strain sensor unit is made of a carbon nano tube cement based composite sensor, the strain sensor unit is embedded into a to-be-tested node to monitor civil engineering project structural load and effects in real time and output in forms of electric signals. A temperature humidity compensation sensor unit is place at the node to monitor area temperature humidity indexes. The carbon nano tube cement based composite sensor and the temperature humidity compensation sensor form a sensor subsystem. A data acquisition processing and communication system is configured to transmit data wirelessly by the support of a power supply unit and a radio frequency power amplifier. A base station node receives and processes data information, a gateway device connected with the base station node is used for converting wireless sensor network protocols into IP (internet protocol) so as to form a base station together. Data is transmitted to a monitoring center through the Internet to build the healthy engineering structure monitoring system based on a wireless sensor network.

Description

technical field [0001] The invention relates to an engineering structure sensor testing system, which belongs to the field of engineering structure health monitoring. Background technique [0002] Structural health monitoring has become a research hotspot in the field of engineering at home and abroad. In bridges, tunnels, highways, dams and many other large-scale civil engineering construction fields and military applications, it has always been our research goal to realize multi-parameter, multi-functional, distributed real-time, sensor detection networks. Large-scale civil engineering buildings have been subjected to environmental loads, material corrosion and aging and other catastrophic coupling factors for a long time, which will inevitably cause structural damage and resistance attenuation, resulting in a decline in resistance to natural disasters and sudden catastrophic accidents. In order to reduce the impact on the service life and service capacity of large-scale ...

AI Technical Summary

Problems solved by technology

[0004] As monitoring requirements increase, the number of sensors, the amount of data to be processed, and the complexity of the system will all increase significantly

If the traditional wired method is used for structural health monitoring, not only the wiring is cumbersome, but also a large number of wiring will increase the load of the monitoring object, and the time and cost of later maintenance will be considerable.

At the same time, this traditional serial centralized monitoring system will also greatly affect the reliability and flexibility of the system

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