3D Location Measurement Using Motion Displacement Vectors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current object identification techniques, such as NFC and RFID, are limited in determining the direction of a signal source, leading to restricted application range and positioning accuracy due to signal scattering and attenuation, making them unsuitable for precise 3D location measurement in complex environments.
Innovation Solution
Combining motion sensing and object identification technologies, using a motion sensing module, an object identification module, and a processing unit to calculate displacement vectors and determine relative locations in a 3D space, allowing for flexible configuration and resistance to signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RF triangulation or RF fingerprinting is used for positioning, then location measurement can be achieved, but multiple signal read/write devices must be emplaced and signal scattering, multiple paths and signal attenuation directly influence implementation cost, application range and positioning accuracy
Solution Approach 1:
The patent transitions from traditional 2D positioning methods to 3D space positioning by incorporating motion sensing data (acceleration, gyroscope) to calculate displacement vectors in three-dimensional space. This dimensional expansion allows accurate location measurement with fewer devices by utilizing the additional spatial information from motion trajectories.
Solution Approach 2:
The patent introduces motion sensing modules as an intermediary between the identification tag sensing system and the location calculation system. The motion sensing module captures movement data that serves as a mediator to compute displacement vectors, enabling accurate positioning without requiring multiple signal read/write devices distributed throughout the space.
2Adaptability or versatility
If object identification techniques such as NFC or RFID are used, then object identification can be achieved, but only signal range can be estimated through signal attenuation and direction source cannot be determined
Solution Approach 1:
The patent merges object identification technology with motion sensing technology into an integrated location measurement system. By combining the identification tag sensing capability with acceleration and gyroscope data, the system achieves both broad application range and precise direction determination, overcoming the limitation of traditional NFC/RFID systems that could only estimate signal range.
3Measurement precision
If multiple signal read/write devices are emplaced in a selected area, then positioning can be achieved, but implementation cost increases and signal scattering, multiple paths and signal attenuation directly influence positioning accuracy
Solution Approach 1:
The patent extracts the motion sensing functionality from the traditional multi-device positioning system and places it in a single portable electronic apparatus. This extraction eliminates the need for multiple signal read/write devices to be emplaced in the environment, reducing implementation cost while maintaining positioning accuracy through the integration of motion data with identification tag sensing.
Data Source
AI summary
An electronic apparatus, a method and a system for measuring a location are provided. A motion information is obtained according to a moving process of the electronic apparatus. And in the moving process, a displacement vector from a first sensing point to a second sensing point is calculated according to the motion information when an identification tag is sensed by the electronic apparatus, for obtaining a relative location of the first sensing point and the second sensing point.