Wearable Terminal Synchronizing Sensor Data with GNSS Positioning
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Solution Overview
Problem
Existing living body information monitor systems are inadequate for tracking fast-moving subjects as they can only transmit position and body information at fixed intervals, limiting the association of various types of body information with precise position data.
Innovation Solution
A moving body information detection terminal that incorporates a communication module, position sensor module, internal timer, and multiple sensors to synchronize and transmit data at precise intervals, allowing for accurate positioning and simultaneous association of various sensor outputs with system time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If position information is detected by GPS receiver at 1 sec interval, then the system can transmit position and living body information in association, but the position accuracy deteriorates for fast-moving subjects as they move several meters to several 10 meters in 1 sec
Solution Approach 1:
The patent stores living body information in advance in a storage unit before position data is obtained. When position data becomes available, the stored information is immediately associated and transmitted. This preliminary storage allows the system to capture fast-moving subjects at the precise moment position is recorded, eliminating the time loss between detection and transmission while maintaining position accuracy.
2Device complexity
If only fixed type sensors are used in the living body information transmission terminal, then the system structure remains simple, but the versatility deteriorates as it cannot incorporate plural types of sensors for various living body information
Solution Approach 1:
The patent employs a universal data storage structure and association mechanism that can accommodate multiple types of sensors and living body information. The storage unit stores information from various sensors (acceleration, heart rate, temperature, etc.) using a unified format, and the association unit systematically links all sensor types with position data. This multi-functional approach enables the system to incorporate diverse sensors without increasing structural complexity, thereby enhancing versatility.
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 accurate and timely tracking of fast-moving subjects by synchronizing sensor data with GNSS position information, ensuring that all types of body information are associated correctly, even at high speeds.
Implementation Method 1
a position sensor module that receives global navigation satellite system (GNSS) data sent from a GNSS satellite and extracts, from the GNSS data, Raw data for obtaining position data
Data Source
AI summary
A wearable device includes; a near field communication module; a position sensor module that extracts Raw data used for determining positional data, from GNSS data from GNSS satellites; an internal timer that outputs system time after output timing of positional data synchronized with the Raw data; sensor modules having various kinds of sensors that detect moving body information; a storage unit that stores therein detection data from the various kinds of sensors; a unit that stores the detection data from the various kinds of sensors in the storage unit for every given time; a unit that calculates positional data on the basis of the Raw data; aid a unit that creates moving body information so that the system time and the positional data are associated with detection data stored in a memory area, and transmits the moving body information to a display device.