Direction Correction for Wireless Terminal Proximity Errors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing terminal apparatuses that perform Bluetooth communication with image processing devices often inaccurately display the direction towards the device due to proximity, causing inconvenience to users.
Innovation Solution
A terminal apparatus that acquires distance information and direction information through short-range wireless communication, corrects the direction information based on distance to indicate the direction towards a target position on the image processing device, and displays this corrected direction on the terminal's display section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal apparatus displays the direction toward the antenna of the image processing apparatus, then the direction can be sensed and displayed using Bluetooth communication, but the displayed direction deviates from the desired direction (center position, operation panel position) when the terminal is close to the image processing apparatus
Solution Approach 1:
The patent changes the reference parameter for direction display from the antenna position to the center position of the image processing apparatus. By recalculating the display direction based on the relative position between the terminal and the image processing apparatus center, the system compensates for the angular deviation that occurs at close distances, thereby improving both measurement precision and user convenience
Solution Approach 2:
The patent introduces an intermediate calculation step that uses the known geometric relationship between the antenna and the center position of the image processing apparatus. This intermediary transformation converts the antenna-based direction data into center-based direction data, resolving the contradiction between what can be measured (antenna direction) and what is useful for users (center position direction)
Data Source
AI summary
A distance information acquisition section acquires distance information representing the distance between a terminal apparatus and an electronic instrument through short-range wireless communication with the electronic instrument. A direction information acquisition section acquires first direction information representing the direction toward the electronic instrument with respect to the terminal apparatus through the short-range wireless communication with the electronic instrument. A correction section carries out the process of correcting the first direction information based on the distance information in such a way that the first direction information indicates the direction toward a target position on the electronic instrument. A display control section causes a display section to display the direction toward the target position based on the corrected first direction information.