red rover
DESCRIPTION
RED Rover. A following, motorized trolley platform. YellowB. Why?. 25% of men over 65 experience lower back pain 1 35% of women over 65 experience lower back pain 1 30 million households in America whose head is older than 60 2 - PowerPoint PPT PresentationTRANSCRIPT
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RED RoverA following, motorized trolley platform
YellowB
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Why?
• 25% of men over 65 experience lower back pain1
• 35% of women over 65 experience lower back pain1
• 30 million households in America whose head is older than 602
• 2.7 billion dollar industry for non-riding lawn, garden, and snow equipment3
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Accuracy Error Cloud (±1% of Range)
Three ultrasonic range finders with 8” baseline
Sensitivity: -6dB at 15°
Range: 6” to 35ft
Minimum direction finding distance: 15”
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Lessons LearnedCargo slides around
Must prevent outdoor elements from encumbering the drive train
Wheels need to be kept on the ground
7” tires are okay but larger types should be a bit better on soft terrain
Following distance should hinder rover running into heels
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References
1. Health, United States, 2005 Report. Center for Disease Control http://www.cdc.gov/nchs/data/hus/hus05.pdf
2. Global Market Information Database http://www.gmid.euromonitor.com
3. 2002 U.S. Economic census – Manufacturing Industry Series http://www.census.gov/prod/ec02/ec0231i333112.pdf
4. Older Americans, Update 2006 . Federal Interagency Forum on Aging-Related Statistics http://www.agingstats.gov
5. The State of Aging and Health in America 2004. Merck Institute of Aging & Health. http://cdc.gov/aging