Bridge Displacement Visualization via Acceleration Sensors
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Solution Overview
Problem
Conventional structure monitoring systems cannot provide information on the degree of displacement of bridges, despite being able to detect abnormalities, limiting their effectiveness in assessing bridge conditions.
Innovation Solution
A display device and method that calculate and visually represent the displacement of bridges using time-synchronized output signals from multiple acceleration detectors, generating image information that displays displacement amounts through various visual elements such as color, shading, and line segments, allowing for easy recognition of displacement states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple acceleration detectors are used to measure bridge displacement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The bridge is divided into multiple measurement sections, each equipped with acceleration detectors at specific positions. By segmenting the measurement system into discrete detector units positioned at key locations (midspan and quarter points), the patent achieves comprehensive displacement coverage while managing system complexity through modular deployment
Solution Approach 2:
The patent introduces a control device as an intermediary that receives signals from multiple acceleration detectors, performs time-synchronization, and calculates displacement amounts. This intermediary component coordinates the data from multiple sensors, enabling precise displacement measurement while abstracting the complexity from the user interface
2Measurement precision
If displacement data is presented in numerical form, then information accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent employs color-coded display elements to represent different displacement states and magnitudes. By mapping displacement data to visual color variations, the system maintains accurate measurement information while enabling rapid visual assessment of bridge conditions, allowing operators to quickly identify areas of concern without interpreting raw numerical data
Solution Approach 2:
The patent transforms one-dimensional numerical displacement data into two-dimensional visual representations on a display device. By presenting displacement information as spatial graphics or diagrams that mirror the physical bridge structure, the system enables intuitive visual comprehension while preserving the precision of the underlying measurement data
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables objective and visual recognition of bridge displacement, facilitating better assessment and management of bridge conditions by providing clear, visually interpretable data on displacement amounts and patterns.
Implementation Method 1
an acceleration detecting device that detects acceleration in respective axial directions of three mutually orthogonal axes
Data Source
AI summary
A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.