Overview of location techniques.

1. Geolocation techniques
02/10/2013
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1

2. Purpose of location
 For oneself and to know where to go :
problem solved (GPS, smartphone…)
 To know someone else or something else's
position
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3. Geolocation components
What With With Via Display and management
Photo courtesy : Deveryware
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4. Available tracking solutions
Who/what For who Why When How Comments
People Someone
else
(caregivers,
LEA)
Safety,
security
Present, past
future
cellular Precision
good if
network
equipped
Vehicles owner Antitheft,
fleet
managemen
t
Past, present GPS + cell
Animals owner Safety,
managemen
t, studies
Present, past GPS+cell or
satphone
RFID
Size weight
or range
issues
Assets Owner,
customs
Delivery time Present,
future
Cellular/barc
ode/RFID
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5. Past present and future location techniques
 Present solutions
 For locating mobile phones or M2M modules
including cellular
 With or without GPS
 Country equipped with 911/112 or not
 For locating vehicles and big objects
 GPS + cellular or satphone
 Emerging solutions
 Internet of Things (from billions connected
objects to millions of billions) will need new
solutions
 Hybrid location (cellular + wifi + radio +
accelerometers+…) already present in some
smartphones
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6. Zoom on beacon based solutions
 GPS + cellular
 US 911 regulation
 Good precision < 100 m, often less than 50 m
sufficient for finding a car in most of the cases
 Optional addition of a radio beacon for last
meters
 Remaining problems
• Poor or jammed GPS signal
• Poor or jammed cellular signal
• autonomy
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7. Selection criterions for tracking devices
 Speed
 Precision
 Size
 Energy consumption -> Autonomy
 Price ?
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8. Trends
 Indoor
 Forwarded GPS
 UWB
 Wifi
 Cellular previously mapped
 Li-fi
 Outdoor
 GNSS : new satellite constellations (Glonass,
Baidou, Galileo…)
 Hybrid (cellular + wifi + radio +
accelerometers +…)
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9. Example of sport tracking achieved with hybrid location : Milano
marathon, more than 10 000 points in 42 195 m
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10. Zoom on some parts of the marathon
① Indoor location Outdoor precision
02/10/2013 10
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11. ① Thank you for your attention
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