Sensor-Monitored Rotary Damper for Timely Fault Detection
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Solution Overview
Problem
The existing damper systems lack reliable monitoring and inspection methods, leading to delayed detection of defects or failures, resulting in unnecessary repairs or missed maintenance opportunities due to variations in installed environments and inconsistent inspection techniques.
Innovation Solution
A damper system equipped with sensors (such as rotation count, sound, temperature, and torque sensors) that detect changes in the external environment and transmit information through a communication network to a control unit, which determines if the detected changes exceed predetermined thresholds, allowing for timely notification and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic inspection work is conducted manually, then inspection can be performed, but detection timing is delayed and inspection quality varies due to human factors
Solution Approach 1:
The damper performs self-diagnosis by automatically detecting its own operational status, rotation counts, and abnormal sounds through integrated sensors and a control unit, eliminating reliance on periodic manual inspections and enabling continuous self-monitoring
Solution Approach 2:
The control unit receives feedback from sensors monitoring rotation counts and sounds, compares this data against predetermined thresholds, and automatically transmits alerts when abnormalities are detected, creating a closed-loop monitoring system that provides timely defect detection
2Measurement precision
If multiple sensors are added for comprehensive monitoring, then detection accuracy improves, but device complexity increases
Solution Approach 1:
A single control unit performs multiple functions including receiving data from various sensor types (rotation count sensor, sound sensor, temperature sensor, torque sensor), processing the information, comparing it against thresholds, and transmitting alerts, thereby reducing overall system complexity despite multiple sensing capabilities
Solution Approach 2:
The control unit integrates the processing functions for multiple different sensor inputs into one centralized component, combining what could be separate processing systems into a unified control architecture that simplifies the overall system
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
This solution enables more reliable prevention of defects and failures, facilitating efficient repair and inspection work by providing real-time monitoring and reducing the likelihood of unnecessary repairs.
Implementation Method 1
a rotation count sensor that detects the number of times of rotation of the rotational part with respect to the casing
Implementation Method 2
a sound sensor that detects a sound of the rotational part during a rotating operation with respect to the casing
Implementation Method 3
a temperature sensor that detects a temperature
Implementation Method 4
a torque sensor that detects torque based on a frictional force of the rotational part during rotation with respect to the casing
Data Source
AI summary
A damper is provided which can more reliably prevent malfunction and breakdown and which enables efficiently performing repair and inspection operations. This damper, provided with a casing linked to a first object and a rotating part linked to a second object rotatably attached to the first object, damps rotation in either the direction closing or the direction opening the second object, and is provided with a sensor which detects prescribed change in the external environment in the damper or around the damper, and a control unit which externally communicates, over a communication network, information relating to the change in the external environment detected by the sensor, wherein the sensor is configured from at least one of: a rotation sensor for detecting the number of revolutions of the rotating part: a sound sensor for detecting sound during rotations of the rotating part; a temperature sensor for detecting temperature; and a torque sensor for detecting torque on the basis of friction during rotation of the rotating part.