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

12/03/2015 Commercial-In-Confidence

GNSS in Modern Society

12/03/2015

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)

12/03/2015 Commercial-In-Confidence

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

12/03/2015 Commercial-In-Confidence

Example: GPS Trackers – System View

12/03/2015 Commercial-In-Confidence

Remote

access

on

smartphone

12/03/2015 Commercial-In-Confidence

Thanks You!

Questions?

Chaz Dixon

Deputy CTO

[email protected]