Real-time visible light communications-based positioning for the visually-challenged
| Project/Area Number |
24300199
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Rehabilitation science/Welfare engineering
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| Research Institution | Niigata University |
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Principal Investigator |
MAKINO Hideo 新潟大学, 自然科学系, 教授 (80115071)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
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| Keywords | 可視光通信 / LED / 魚眼カメラ / イメージセンサ / 音声案内 / 視覚障碍者 / LED照明 / 屋内測位 / 視覚障がい者 / 魚眼レンズ |
|---|
| Outline of Final Research Achievements |
Visible Light Communications-based (VLC) systems for indoor positioning via high-speed fish-eye lens-equipped cameras have been found to be ideally-suited to audio-based navigation systems for the visually-impaired, as well as control systems for mobile robots. Its LED lights are dual-purpose in nature, serving as an economical means of illumination and data-transmission, with users receiving digitized location information that is updated at 1-second intervals. Since the lights operate at pre-determined illumination levels, the system requires no additional space, or power. And, because the fish-eye lens-equipped camera commands a 180-degree view of the ceiling, the number of detectable LEDs increases, improving overall positioning accuracy. The receiver detects the LEDs from the ceiling image. Then, variations in intensity at the center of each LED are stored as light signals using the high-speed image sensor.
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Report
(4 results)
Research Products
(21 results)
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[Book] 測量2014
Author(s)
牧野秀夫
Total Pages
4
Publisher
日本測量協会
Related Report
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