Magnetic Hinge Sensor for Barrier Position Detection
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Solution Overview
Problem
Existing systems for monitoring and controlling barriers, such as doors and windows, face challenges in accurately determining authorized access and movement, leading to potential unauthorized entry or false alarms.
Innovation Solution
The implementation of a hinge sensor system, magnetically mounted to the barrier's hinge, which includes a fixed and rotatable portion, and a motion sensor, to detect position changes and object movement, wirelessly transmitting data to a monitoring system for real-time access control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a hinge sensor system is magnetically mounted to the barrier hinge, then the measurement precision of barrier position is improved, but the device complexity increases due to additional sensor components and mounting mechanisms
Solution Approach 1:
The patent replaces complex mechanical position detection mechanisms with a magnetic field-based sensor system. The hinge sensor uses magnetic field interactions between a magnet on the barrier and the sensor on the hinge to detect position changes, eliminating the need for mechanical linkages, contacts, or complex moving parts while achieving accurate position measurement.
Solution Approach 2:
The hinge sensor system is designed to perform multiple functions: detecting barrier position, determining open/closed states, and triggering automated responses. This multi-functionality consolidates what would otherwise require separate sensors and control systems into a single integrated unit, reducing overall system complexity despite the advanced sensing capability.
2Reliability
If motion sensors and hinge sensors are integrated into the barrier system, then the reliability of access monitoring is improved, but the use of energy increases due to continuous sensing and wireless transmission
Solution Approach 1:
The sensor system operates in periodic cycles rather than continuously. The hinge sensor triggers wireless data transmission only when position changes are detected (such as when the barrier transitions from closed to open), and the motion sensor activates only when movement is detected. This event-driven periodic operation maintains high reliability for monitoring while dramatically reducing average power consumption compared to continuous operation.
Solution Approach 2:
The system uses feedback from the hinge sensor to control energy-consuming operations. When the barrier position changes, the hinge sensor provides feedback that triggers wireless transmission and alerts to the monitoring system. This feedback mechanism ensures that energy-intensive operations occur only when necessary, optimizing the balance between reliability and power consumption.
3Extent of automation
If wireless data transmission is implemented for real-time barrier monitoring, then the extent of automation is improved, but the loss of time occurs during data communication and processing
Solution Approach 1:
The system performs preliminary actions by continuously monitoring barrier position through the hinge sensor and pre-processing position data locally. When a position change occurs, the sensor immediately captures and buffers the data, so that when wireless transmission is triggered, the data is already prepared and ready for immediate transmission. This preliminary data capture and preparation minimizes the effective response time despite wireless communication delays.
Solution Approach 2:
The system implements event-driven transmission that skips unnecessary communication steps. Instead of continuous polling or scheduled updates, the hinge sensor detects position changes and immediately triggers transmission only when relevant events occur (such as barrier opening or closing). This event-based approach rushes through the essential data transmission step only when necessary, minimizing time loss while maintaining real-time monitoring capability.
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 access monitoring, reduces false alarms, and enables automated control of barriers based on user authentication and patterns, improving home and business security and automation.
Implementation Method 1
a hinge sensor magnetically mounted to the at least one hinge
Data Source
AI summary
Methods and systems are described for determining operation of an openable barrier into a building. A method for determining an open state of a barrier may include identifying a first position for the barrier, the barrier having at least one hinge and a hinge sensor magnetically mounted to the at least one hinge. The method may further include determining, based at least in part on the hinge sensor, when the barrier changes position from the first position to a second position. The method may further include wirelessly transmitting data concerning the change in position of the barrier.