Intelligent bolt and system for monitoring inclination state of engineering structure by using bolt

Abstract

The invention relates to an intelligent bolt and a system for monitoring an inclination state of an engineering structure by using the bolt. The intelligent bolt comprises a standard bolt body and a sensor node module, wherein the sensor node module is fixed on the top of the bolt in a nested manner; an IC (Integrated Circuit) is packaged inside the sensor node module; a micro-electro-mechanical biaxial tilt angle sensor, a wireless local area network communication module, a wireless charging reception module and a micro control unit module are integrated on the IC; the micro-electro-mechanical biaxial tilt angle sensor, the wireless local area network communication module and the wireless charging reception module are connected with the micro control unit module; the wireless charging reception module is connected with external power equipment; and the wireless local area network communication module is connected with an external local area signal acquisition base station. According to the intelligent bolt, by introducing the micro-electro-mechanical tilt angle sensor technology and a local area self-networking communication manner based on internet of things, the usability of thebolt in practical engineering can be improved by virtue of wireless transmission on premise of meeting code requirements.

Description

technical field [0001] The invention belongs to the technical field of engineering safety monitoring, and in particular relates to an intelligent bolt and a system for monitoring the inclination state of an engineering structure using the bolt. Background technique [0002] With the further deepening of my country's modernization and international cooperation, a large number of infrastructure projects urgently need to be put into construction, such as water conservancy and hydropower facilities, houses, bridges, etc. In the construction process and operation phase of these engineering structures, in order to ensure the safety of engineering objects, protect the lives and property of personnel and the surrounding environment, it is necessary to carry out necessary stability and health monitoring. The tilt state is one of the important monitoring elements. [0003] At present, the inclination monitoring method used in the project is mainly the installed box-type inclinometer,...

AI Technical Summary

Problems solved by technology

Since the box-type inclinometer has a certain volume and provides electric energy through solar panels, it needs to occupy a certain space during the installation process. In addition, the inclinometer transmits data through cables, which is not conducive to layout in complex engineering environments.

[0004] For large-scale engineering structures, in order to ensure the coverage of monitoring, a large number of sensor nodes need to be deployed, which further poses higher challenges to monitoring frequency and data transmission. Smart bolts can be used as nodes for monitoring, but most of the existing smart bolts They all embed optical fiber sensors or optical sensors inside the bolts. This method of embedding sensors inside will destroy the strength of the bolt itself. In actual use, the specifications and strength of the bolts have clear specification requirements. It is very difficult to meet the requirements of relevant specifications for internally implanted components; in addition, most of the existing smart bolts transmit data through lead-out cables, ignoring the ease of use in actual engineering

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