Wireless Motion Monitoring Hub for Privacy-Safe Home Care
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Solution Overview
Problem
Existing patient monitoring systems are too expensive and intrusive for residential settings, and privacy concerns arise from video or audio monitoring without consent.
Innovation Solution
A non-invasive patient monitoring system using sensors powered by AC or battery, wirelessly communicating with a central hub, which determines the need for assistance by analyzing location and activity data, and enables voice communication with caregivers while maintaining privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hospital-grade patient monitoring systems are used, then patient physiological information can be tracked accurately, but the system becomes too expensive and intrusive for residential settings
Solution Approach 1:
The monitoring system is divided into multiple independent sensor units distributed throughout the home, each performing simple motion detection. These segmented sensors work together to provide comprehensive monitoring without requiring a single complex centralized system, thereby reducing overall system complexity and cost while maintaining monitoring accuracy.
Solution Approach 2:
A central hub acts as an intermediary that receives data from simple distributed sensors and processes the information to determine patient status. This intermediary approach allows the use of simple, low-cost sensors while achieving sophisticated monitoring capabilities through centralized intelligence, resolving the contradiction between measurement precision and device complexity.
2Productivity
If video or audio monitoring devices are used to track patient activities, then comprehensive activity monitoring is achieved, but privacy concerns arise without patient consent
Solution Approach 1:
The system extracts only the essential monitoring function (motion detection) from the patient's environment without including intrusive elements like video or audio capture. By taking out only what is necessary for safety monitoring and eliminating privacy-intrusive components, the system achieves effective activity tracking while respecting patient privacy.
Solution Approach 2:
The system uses simple, inexpensive motion sensors instead of expensive, intrusive video/audio equipment. These simple sensors provide sufficient monitoring capability without the privacy implications of continuous visual or auditory surveillance, effectively replacing complex monitoring tools with simpler alternatives that don't compromise privacy.
3Loss of information
If multiple sensors are deployed throughout the home, then comprehensive location and activity detection is achieved, but system cost and complexity increase
Solution Approach 1:
Multiple simple sensor units are merged into a coordinated network managed by a central hub. Each sensor performs a single function (motion detection) but when combined with others through the hub, they provide comprehensive location and activity information. This merging approach achieves complete monitoring coverage while keeping individual components simple and inexpensive.
Solution Approach 2:
Each sensor unit is designed with universal functionality to detect motion and communicate with the hub, regardless of its location in the home. This multi-functional design allows the same simple sensor to serve multiple purposes (detecting presence, determining location, monitoring activity) throughout the entire house, reducing the need for different types of specialized sensors and thereby reducing overall system complexity.
Data Source
AI summary
A wireless communication system has a plurality of wireless communication devices in communication with a central hub, and the central hub is connected over a network to a caregiver and a server. Each wireless communication device has passive and active motion detection functionality, a loudspeaker, microphone, and duplex audio communication functionality. When a passive motion detector on one of the wireless communication devices detects motion, that wireless communication devices transition from an inactive to an active state, and remains in the active state while motion is detected. While in the active state, the audio communications functionality is operational and the microphone starts to capture sound.