Wearable Device Tracking via Power Supply Detection
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Solution Overview
Problem
Wearable user equipment in work systems, such as industrial robots and barcode readers, are often small and easily lost, making them difficult to track and manage within complex processes like assembly lines and distribution warehouses.
Innovation Solution
A method where the device transmits an identification message when connected to a power supply, using Bluetooth Low Energy, to facilitate easy tracking without complex setup, including information about its charging status and location, which can be received by a base station without establishing a two-way communication link, allowing for seamless monitoring and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device is made small to avoid impeding the user, then the device is easier to wear and operate, but the device becomes easier to lose and harder to track
Solution Approach 1:
The device automatically transmits its identification message when connected to a power supply without requiring user action. The tracking system self-updates with the device location and status information, eliminating the need for manual check-in procedures while maintaining reliable tracking of the small wearable device.
Solution Approach 2:
The device transmits its identification message in advance when connected to a power supply, before any potential loss or misplacement occurs. This preliminary transmission ensures the tracking system has current location information, allowing the device to be located quickly if lost.
2Measurement precision
If complex tracking steps are implemented to improve device location accuracy, then the tracking precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The device autonomously transmits its identification message and the base station automatically receives and processes it without requiring user configuration or complex setup procedures. This self-service approach achieves precise tracking while maintaining simple operation.
Solution Approach 2:
The patent replaces complex manual tracking procedures with an automated electronic identification message transmission system. The base station uses signal strength measurements to automatically determine device location and distance, substituting mechanical check-in processes with electronic automation.
3Reliability
If the device transmits identification messages continuously to improve tracking reliability, then the trackability is improved, but the energy consumption increases
Solution Approach 1:
The device transmits its identification message periodically when connected to a power supply rather than continuously. This periodic transmission maintains reliable tracking information updates while significantly reducing energy consumption compared to continuous transmission.
Solution Approach 2:
The device maintains continuous connection to the power supply (charging) which enables continuous availability for transmission, while transmissions themselves are periodic. This ensures the tracking function remains continuously effective without requiring continuous high-energy transmission operations.
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
Enables efficient and reliable tracking of wearable user equipment, reducing the risk of loss and improving maintenance by providing real-time location and operational status, thereby enhancing the management of devices within work systems.
Implementation Method 1
The transmission of the identification message is understood to mean sending the identification message without any specific receiver... The identification message is transmitted using the Bluetooth protocol, in particular Bluetooth Low Energy (BLE)
Data Source
AI summary
A method for tracking a device of a wearable user equipment for a work system, wherein the device detects whether it is connected to a power supply, and the device transmits an identification message when it is connected to a power supply. Moreover, a device as well as a work system are shown.