Position Navigation and Timing Applications | Chaz Dixon | March 2015
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Position Navigation and Timing Applications for Making Efficiencies Using Satellites “It’s not rocket science” A Discovery Day for Local Authorities Chaz Dixon Deputy CTO March 2015
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Transcript of Position Navigation and Timing Applications | Chaz Dixon | March 2015
Position Navigation and Timing Applications
for Making Efficiencies Using Satellites “It’s not rocket science”
A Discovery Day for Local Authorities
Chaz Dixon
Deputy CTO
March 2015
Global Navigation Satellite System(s)
Glonass
Galileo
GNSS provide:• Position
• Timing
• Velocity
Space Segment
User Segment Ground Segment
COMPASS
12/03/2015 Commercial-In-Confidence
& Used for:• Navigation
• Tracking
• Fleet Mgmt.,
•…
GNSS Principles of Operation
Onboard
precision clock
Receiver clock
Receiver
• Generates PRN sequences –
correlates with received GNSS
signals to measure
(pseudo)ranges.
• Combines ranges to derive
PVT (position, velocity, & time)
PVT
GNSS Satellite
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GNSS in Modern Society
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Location
TIMING
Communication
Surveillance
Commercial-In-Confidence
Why GNSS?
• Free at point of use
• Global
• Available 24/7
• Receivers low cost, lightweight, widely available, …
• Impressive accuracy ((a) few m; (b) ~cm)
• Reliable
• & gets integrated with other useful stuff
• Maps (context for precise location, routes, …)
• Databases (of pretty much anything)
• I.T. & Communications (facilities, nearby things, email, instructions)
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Example Uses
Locating
• Identify a missing manhole cover / mark a pothole for repair
• (Precision survey for building / subsidence / ownership / …)
Tracking & Tagging
• Lone workers, aging and vulnerable people
• Assets
• (Low-risk criminals)
• Theft protection / where did I leave that Car / JCB / Sample of ?
Vehicles & Fleet Management
• Driving style (e.g. fuel efficiency), conformance with the law, evidence
• Tagging Deliveries, Collections, …
• Efficient routing, Optimisation of x y z
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Example: GPS Trackers – System View
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Remote
access
on
smartphone
12/03/2015 Commercial-In-Confidence
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