Adaptive Door Motion Monitoring for Learned Operating Limits
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Solution Overview
Problem
Doors installed in various locations within buildings can fail due to repetitive use, environmental forces, and installation issues, leading to safety hazards and operational inefficiencies, with existing monitoring systems failing to account for unique operational parameters of individual doors.
Innovation Solution
A door monitoring system equipped with a sensor suite measuring six degrees of movement (x, y, z, pitch, roll, yaw) and a rechargeable battery, capable of learning and adapting to the specific operational parameters of each door, triggering alarms or notifications for improper operation, and ensuring proper installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a door monitoring system uses fixed operational parameters for all doors, then the system structure is simple, but it cannot accurately detect deviations for doors with unique operational characteristics
Solution Approach 1:
The system performs preliminary learning during an installation phase to capture the unique operational parameters of each specific door before normal monitoring begins. This preliminary action stores the baseline characteristics (movement ranges, speeds, forces) for comparison during operation, enabling accurate detection without requiring complex real-time adjustments
Solution Approach 2:
The monitoring system transitions from static fixed parameters to dynamic adaptive parameters by continuously learning and updating each door's operational characteristics. The system adapts to individual door behaviors while maintaining a standardized monitoring framework, balancing precision and complexity
2Reliability
If the monitoring system continuously monitors all door operations, then reliability improves, but energy consumption increases
Solution Approach 1:
The system implements periodic monitoring cycles with alternating active and sleep modes. During normal operation, monitoring occurs at regular intervals rather than continuously, allowing the system to maintain reliability while consuming less energy. The sensor suite can enter low-power states between measurement cycles
Solution Approach 2:
The system uses feedback from learned operational parameters to intelligently adjust monitoring intensity. When door operations conform to established patterns, monitoring can be reduced. When deviations are detected, the system increases monitoring frequency to confirm anomalies, optimizing energy use based on actual needs
3Measurement precision
If the door monitoring system uses a comprehensive sensor suite measuring six degrees of movement, then measurement precision improves, but device complexity increases
Solution Approach 1:
The system employs a multi-functional sensor suite where a single integrated sensor unit performs all six degrees of movement measurement (x, y, z positions and pitch, roll, yaw orientations). This universal sensor design achieves comprehensive measurement precision while minimizing the number of separate components, reducing overall system complexity
Data Source
AI summary
In example implementations, a door monitoring sensor is provided. The door monitoring sensor includes a communication interface to transmit an alarm when a door operates outside of operational parameters of the door, an angular sensor to measure rotational movement of the a door, a movement sensor to detect movement along an x-y-z coordinate plane, a radar sensor to detect an object, a rechargeable power supply to provide power to the angular sensor, the movement sensor, and the radar sensor, and a processor. The processor is communicatively coupled to the communication interface, the angular sensor, the movement sensor, and the radar sensor. The processor is to determine that the door is moving outside of the operational parameters of the door and generate the alarm that is transmitted by the communication interface in response to determination that the door is moving outside of the operational parameters of the door.