Circuit Breaker Position Sensing for Full-Range Cradle Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional power device monitoring systems cannot accurately detect the varying distance between the circuit breaker body and the cradle terminal over the entire movement range, limiting their ability to identify the exact position of the circuit breaker body in real time.
Innovation Solution
A monitoring system for power devices that includes a cradle with a cradle terminal, a circuit breaker, at least one position detecting means, and a display to output movement characteristics such as distance, speed, and contact amount, using a position bar and sensor module to detect the circuit breaker body's position and movement characteristics in real time, with a controller to analyze and alert on any deviations from preset values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional micro switches are used to detect circuit breaker body position, then the structure is simple, but the measurement precision of the varying distance is insufficient
Solution Approach 1:
The patent replaces conventional mechanical micro switches with a non-contact optical sensing system. A position detecting means including a light source and light receiver detects the position of the circuit breaker body by measuring light reflection or interruption, eliminating the need for mechanical contact and improving measurement precision while reducing wear and structural complexity.
Solution Approach 2:
The patent introduces a position bar as an intermediary element that moves with the circuit breaker body and reflects or interrupts light signals. This intermediary enables precise position detection through optical means without requiring direct mechanical contact between the sensing system and the circuit breaker body.
2Measurement precision
If discrete position detection points are used, then the device complexity is low, but the measurement precision of continuous position varies over movement range
Solution Approach 1:
The patent implements continuous position detection by maintaining constant optical monitoring throughout the circuit breaker body's movement range. The light source continuously emits signals and the light receiver continuously detects reflected or interrupted light, providing uninterrupted position information rather than discrete point measurements.
Solution Approach 2:
The patent transitions from one-dimensional discrete point detection to continuous linear detection along the movement path. By positioning the light source and light receiver to monitor the entire movement range, the system captures position information continuously across the spatial dimension of the circuit breaker body's travel.
3Reliability
If real-time position monitoring is implemented, then the reliability of safety detection is improved, but the use of energy increases
Solution Approach 1:
The patent implements periodic sampling of position data rather than truly continuous monitoring. The light source emits light pulses or the system samples position at predetermined intervals, providing sufficient safety detection reliability while reducing energy consumption compared to constant continuous monitoring.
Solution Approach 2:
The patent utilizes the existing movement of the circuit breaker body to trigger position detection events. As the circuit breaker body moves through different positions, it naturally triggers detection at critical points, eliminating the need for active continuous scanning and reducing energy consumption while maintaining safety reliability.
Data Source
AI summary
The present disclosure relates to a power device monitoring system comprising: a cradle having a cradle terminal formed on the rear side thereof; a circuit breaker mechanically or electrically connected to or separated from the cradle terminal; at least one position detection means mounted inside the circuit breaker so as to detect the position of a circuit breaker body in real time; and a display unit for outputting the mobile characteristic of the circuit breaker body detected by the position detection means.