Door Motion Sensing for Intermediate State Detection
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Solution Overview
Problem
Existing methods for determining the state of a door, such as open or closed, are not flexible, reliable, or efficient in capturing intermediate states or movement patterns like speed and acceleration.
Innovation Solution
A door operation management system that includes a first movement sensor device, such as a gyroscope or accelerometer, attached to the door to gather movement data like acceleration, position, and velocity, which is then processed to determine the door's state and movement patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a switch mounted on a doorframe is used to determine door state, then the system structure is simple, but the system cannot capture intermediate states or movement patterns
Solution Approach 1:
The patent replaces mechanical switches and gauges with movement sensors (accelerometers, gyroscopes) that attach to the door itself. These sensors capture acceleration, velocity, and position data, enabling detection of intermediate states and movement patterns without complex mechanical linkages between the door and doorframe.
Solution Approach 2:
The patent introduces a processing circuitry as an intermediary that receives raw sensor data from multiple movement sensors and translates it into meaningful door state information. This intermediary layer enables comprehensive state detection while keeping individual sensor components simple and the overall system modular.
2Reliability
If mechanical gauges are used with swing doors to determine movement, then the system can detect door position, but the system lacks flexibility and reliability
Solution Approach 1:
The patent employs multi-functional movement sensors that simultaneously measure acceleration, velocity, and position. A single sensor device performs multiple measurement functions, making the system adaptable to different door types and states while maintaining high reliability through redundant measurement capabilities.
Solution Approach 2:
The patent uses multiple movement sensors on the same door to provide redundant and complementary measurements. This excessive sensing approach ensures reliable detection of door states by cross-validating data from multiple sensors, even though it uses more sensors than the minimum single sensor would require.
3Loss of information
If multiple movement sensors are attached to the door, then comprehensive door state and movement pattern data is obtained, but the device complexity increases
Solution Approach 1:
The patent combines multiple movement sensors (accelerometers, gyroscopes) into integrated sensor devices that are attached to the door. The processing circuitry merges data from these sensors and synthesizes comprehensive door state information, reducing the complexity of data integration while maintaining comprehensive monitoring capabilities.
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 system provides a more flexible and reliable way to control and monitor door states, including intermediate positions and movement patterns, facilitating better door operation management and maintenance.
Implementation Method 1
the at least first movement sensor device is at least any of a gyroscope or an accelerometer
Implementation Method 2
the at least first movement sensor device is at least any of a gyroscope or an accelerometer
Data Source
AI summary
A door operation management system (100), method and computer program product for controlling operation of a door (1), the door operation management system (100) comprises at least a first movement sensor device (10a, 10b, 10c) arranged at the door (1), for determining a movement of the door (1); and a processing circuitry (102a, 102b) operatively connected to the at least first movement sensor device (10a, 10b, 10c) configured to cause the door operation management system (100) to obtain at least a first sensor data (dd1, dd2, dd3, dd4) from the at least first movement sensor device (10a, 10b, 10c); and determine at least a first state (st1, st2, st3, st4) of the door (1) based on the at least a first sensor data (dd1, dd2, dd3, dd4).