Portable Emergency Device Power Management via Base Station Proximity
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Solution Overview
Problem
Existing tracking and monitoring systems for individuals or objects face challenges such as bulky batteries, power consumption issues, reliance on GPS, and inefficiencies in communication methods, particularly when transitioning between proximity to and distance from base stations, leading to suboptimal performance in tracking and emergency response.
Innovation Solution
A method utilizing a portable device with a cellular transceiver and GPS module that powers down when in proximity to a base station, conserving battery life by acquiring GPS data only at intervals, and automatically initiating emergency calls and location data transfer when needed, while using an RF pendant for emergency communication and a base station for two-way voice and data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS module is continuously activated to track location, then location monitoring capability is improved, but battery power consumption increases
Solution Approach 1:
The GPS module is activated periodically at predetermined time intervals rather than continuously. The system transitions the GPS module between active and inactive states based on periodic timing signals, achieving location updates at necessary intervals while conserving battery power during inactive periods.
Solution Approach 2:
The system dynamically adjusts the operational state of the GPS module based on real-time conditions. When the portable device is in proximity to the base station, the GPS module is deactivated. When outside the base station range, the GPS module is activated to provide location tracking, creating a dynamic adaptation to operational needs.
2Adaptability or versatility
If portable device operates independently without base station, then communication flexibility is improved, but power management complexity increases
Solution Approach 1:
The system uses feedback from the base station to control portable device operations. The base station sends signals indicating proximity status, which triggers the portable device to switch between power-saving mode (when in proximity) and full operational mode (when outside range), simplifying power management through external control signals.
Solution Approach 2:
The base station acts as an intermediary that manages power consumption for the portable device. Instead of the portable device independently managing its own power state, the base station provides control signals that simplify the portable device's power management decisions, reducing complexity while enabling flexible communication.
3Device complexity
If device uses simple RF communication only, then device simplicity is improved, but two-way communication capability deteriorates
Solution Approach 1:
The portable device integrates multiple communication functions into a single device: RF communication for short-range base station communication, cellular transceiver for long-range emergency calls, and GPS for location services. This multi-functionality enables both simple local communication and complex emergency response capabilities through the same device.
Solution Approach 2:
The system merges different communication technologies (RF, cellular, GPS) into a unified portable device that can operate independently or in conjunction with the base station. The integrated design combines simple RF communication with advanced cellular and GPS capabilities, allowing the device to adapt to different communication needs without requiring separate devices.
Data Source
AI summary
A method of 2-way data and voice communication with a user utilizing a portable device having a cellular transceiver module, a GPS module and an emergency call button is disclosed. The method includes determining whether the portable device is in proximity of the base station; powering down the GPS, placing the portable device into sleep mode and sending a signal to the base station indicating that said portable device is in proximity of the base station when the portable device is in proximity to the base station; and activating and fully powering the cellular transceiver module and activating and fully powering said GPS module when the portable device is not in proximity of said base station. When not in proximity, the method also includes collecting an initial GPS location data from the GPS module and storing the location data into a memory location; placing the GPS module into a lower power mode and fully powering the GPS module, acquiring and storing additional GPS location data only at specified intervals to conserve battery life while monitoring the cellular transceiver module for inquiries and monitoring the emergency call button for an emergency signal. Various other steps occur when the emergency button is depressed which involve communicating with a back end server and collecting and sending various data packets.