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| Content Provider | IET Digital Library |
|---|---|
| Author | Popoola, Olaoluwa R. Sinanović, Sinan Iniguez, Roberto Ramirez Popoola, Wasiu O. |
| Abstract | At present, about 47 million people worldwide have Alzheimer's disease (AD), and because there is no treatment currently available to cure AD, people with AD (PWAD) are cared for. The estimated cost of care for PWAD in 2016 alone is about $236 billion, which puts a huge burden on relatives of PWAD. This work aims to reduce this burden by proposing an inexpensive indoor positioning system that can be used to monitor PWAD. For the positioning, freeform lenses are used to enable a novel optically pixeled LED luminaire (OPLL) that focuses beams from LEDs to various parts of a room, thereby creating uniquely identifiable regions which are used to improve positioning accuracy. Monte Carlo simulation with the designed OPLL in a room with dimensions 5 m × 5 m × 3 m is used to compute the positioning error and theoretical analysis and experiments are used to validate the time for positioning. Results show that by appropriate LED beam design, OPLL has a positioning error and time for positioning of 0.735 m and 187 ms which is 55.1% lower and 1.2 times faster than existing multiple LED estimation model proximity systems. |
| Starting Page | 76 |
| Ending Page | 81 |
| Page Count | 6 |
| Volume Number | 6 |
| e-ISSN | 20533713 |
| Issue Number | Issue 3, Jun (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/htl/6/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/htl.2018.5039 |
| Journal | Healthcare Technology Letters |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-06-03 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution -Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) |
| Subject Keyword | Aids For The Handicapped Alzheimer's Disease Appropriate LED Beam Design Computer Assistance For Persons with Handicaps Computer Vision And Image Processing Technique Diseases Display Technology Freeform Lenses Handicapped Aids Image Resolution Indoor Navigation Inexpensive Indoor Positioning System Lenses Light Emitting Diode Monte Carlo Method Monte Carlo Simulation Optical Pixelation Technique Optical, Image And Video Signal Processing Optically Pixeled LED Luminaire Other Optical System Component People with AD Positioning Accuracy Positioning Error PWAD Radio Navigation And Direction Finding Uniquely Identifiable Region |
| Content Type | Text |
| Resource Type | Article |
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