Low Cost UAS for

Mapping via Google

Application

Stacey Lyle, PhD, RPLS

Associate Professor

Texas A&M University Corpus Christi Texas

School of Engineering and Computer Science

Conrad Blucher Institute for Surveying

And Science

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N UAS

Dd

D

D

Conrad Blucher Institute

for Surveying and

Science

Texas A&M University

Corpus Christi

The Island University

RS 16

16 wing spread

13,000 ceiling

16 hour flight time

25 pound load

Photogrammetry Payload

Direct GeoReferencing

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

9/17/2012 DRAFT 3

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N Low Cost Drone

Dd

D

D

Conrad Blucher Institute

for Surveying and

Science

Texas A&M University

Corpus Christi

The Island University

Micro GPS Sensor

L1 and L2

RTK

IBM Silcon Germanium SiGe

(Lyle and Wilson, 2000 Institute for

Navigation GPS 2000)

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N Low Cost Drone

Dd

D

D

Conrad Blucher Institute

for Surveying and

Science

Texas A&M University

Corpus Christi

The Island University

Digital Imagery

Direct Georeference with RTK GPS

CCD/CMOS

Full Frame Video

RTK GPS 50 km baseline

Shift, rotation, and scale

Field Test

NASA Rocket

(Lyle, 2007 NASA Tech Briefs)

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

9/17/2012 DRAFT 6

RTN

GPS:

VRS or

RTCM

Server

2G/3G/4G

Local Wi-Fi

Network

Real Time Map

N Smartphone RTK

(Lyle, Smith, Nygard 2011, ION)

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N USDA: Low Cost Machine

Control

Dd

D

D

Conrad Blucher Institute

for Surveying and

Science

Texas A&M University

Corpus Christi

The Island University

RTK Cellphones Solution

Ublox L1 C/A Phase

RTKLib

GeoRTK

(Lyle, 2013, Experiment to test RTK

GPS with Satellite Internet to

Tractor for Precision Agriculture

International Journal of Agricultural

and Environmental Information

Systems)

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N

9/17/2012 8

-0.04

-0.03

-0.02

-0.01

0

0.01

0.02

0.03

-0.03 -0.02 -0.01 0 0.01 0.02 0.03

L1 RTK Horizontal

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N

9/17/2012 9

-0.08

-0.06

-0.04

-0.02

0

0.02

0.04

0.06

0.08

0.1

0 500 1000 1500 2000 2500 3000 3500 4000

L1 RTK Vertical

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

DIY Drone- Open Sources

GPS Machine Control 100 hz

Latency

Copter or Airplane Autopilot

Mission Planning Software

Ardunio

Drone Control

N Considerations

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

1. App starts- Settings

2. Survey Type

3. Start Job

4. Smart phone gets Position

1. Wifi, AGPS, DGPS, PPP, or RTK

5. Surveying started with selected

accuracy

6. Real Time Mapping and/or

Control

7. App closed

N Application Steps

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies Product

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

9/17/2012 DRAFT 13

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

9/17/2012 DRAFT 14

Texas A&M University

Corpus Christi

The Island University

Office of Research and

Graduate Studies

N

Stacey D. Lyle

6300 Ocean Drive

Corpus Christi, Texas 78412

Stacey.lyle@tamucc.edu

361-548-8852

Thank You

mailto:Stacey.lyle@tamucc.edu