Angled Magnet Barrier Sensor for Position Detection
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Solution Overview
Problem
Existing home and business automation systems face challenges in accurately determining the operation and authorization of barriers such as doors and windows, which affects alarm generation and access control.
Innovation Solution
A method and system using a barrier sensor and a magnet positioned at an angle to detect the position change of barriers, combined with a motion sensor to confirm object movement, wirelessly transmitting data for monitoring and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a barrier sensor and magnet are positioned at an angle to detect barrier position changes, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The magnet is positioned at an angle relative to the barrier sensor, creating a dynamic magnetic field interaction that enhances detection sensitivity. This angular positioning allows the system to detect barrier position changes more accurately by optimizing the magnetic coupling between the magnet and sensor throughout the barrier's range of motion.
Solution Approach 2:
The system utilizes changes in magnetic field parameters (strength, direction, orientation) as the barrier moves between positions. By monitoring these parameter changes in the magnetic field, the sensor can precisely determine barrier position without requiring complex mechanical linkages or multiple sensors.
2Reliability
If motion sensor is added to confirm object movement through opening, then reliability is improved, but device complexity increases
Solution Approach 1:
The barrier sensor and motion sensor are integrated into a unified sensor assembly that monitors both barrier position and object movement. This merging of functions allows the system to reliably determine whether the barrier has been properly opened and whether an object has passed through, providing enhanced security validation without requiring completely separate monitoring systems.
Solution Approach 2:
The sensor assembly is designed to perform multiple functions: detecting barrier position, confirming barrier opening, and verifying object passage through the opening. This multi-functional approach improves system reliability by cross-validating security events while avoiding the need for multiple specialized devices.
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
Enhances the accuracy of barrier state monitoring, enabling authorized access and proper alarm generation, while allowing for sensitive detection of barrier movement in various configurations.
Implementation Method 1
a magnet may be positioned adjacent to the barrier sensor at the first side of the barrier
Data Source
AI summary
Methods and systems are described for determining operation of an openable barrier into a building. A method for determining a state of a barrier includes identifying, based at least in part on a barrier sensor, a first position of the barrier. In one embodiment, the barrier sensor may be positioned at a first side of the barrier, and a magnet may be positioned adjacent to the barrier sensor at the first side of the barrier. The magnet may be positioned at an angle with respect to the barrier sensor. The method may further include determining, based at least in part on the barrier sensor and the magnet, when the barrier changes position from the first position to a second position; and wirelessly transmitting data concerning the change in position of the barrier.