Total Station basics for civil engieers required

Total Station

1. Presented By
Dr. K. Srinivasan, AP(SS),
Dr.MCET, Pollachi.

3. Thank you for your
Valued Present Here

5. Topographic survey

6. Factory's layout survey

7. AIRPORT SURVEY

11. MILITARY SURVEY

12. Railway & track laying Survey

13. Power line survey

14. TUNNEL SURVEY

15. Road & curve Survey

16. Road & Gradient Survey

17. Building survey

18. Column grid line fixing survey

19. Pipe line, OIL &gas Survey

20. DRAINAGE SURVEY

21. Property Survey

22. Irrigation survey

23. Marine survey

24. Burj Khalifa 830 m Height
High Rise Building Survey Survey

25. career opportunities
SURVEY
Residential Infrastructure
Building
High Rise
Land
Commercial Industrial
Roads & Bridges,
Reservoir
Hotels &Hospital
Colleges & Theaters
Factory's
Power Sector
Wind mills
Shopping malls
Rail ways
Rail ways Airports
CONSTRUCTION

26. SURVEY
PLANNING
DESIGNING
SCHEDULE
EXECUTION
SEQUENCE OF WORK
SURVEY

27. Global Positioning System
An easy to use
technology for everyone

28. What is GPS ?
A very precise positioning system
•Developed and maintained by the
US Department of Defense (DOD)
•Satellite Based
* 24 satellites
* 20,200 km high orbit

29. Characteristics of GPS
•Free
•Precise
•Reliable
•Anytime & anywhere
•All weather
•Unlimited user capacity
Accurate(precise)
Almost!

30. Segments of GPS
1. Space Segment
A constellation of 24 satellites
2.Monitor Station
A network of earth-based facilities
3. Users & Equipment
Source:Trimble

31. How GPS Works ………
Uses measurements from 4+ satellites
Distance = travel time x speed of light
Source:Trimble

32. GPS Receivers

33. GeoXTVersus Garmin
Mostly used for
GIS data
collection
Mostly used for
recreational
purposes

34. PDOP
Multipath
SNR
Sources of error
Source:Trimble

35. Multipath
•When GPS signals arrive at the receiver
having traveled different paths

36. What is a PDOP?
•Position Dilution of Precision
GoodPDOP PoorPDOP

37. It’s oriented
around the right
way now (we
are used to
having north at
the top of the
page), but the
image still does
not have spatial
coordinates…
N

38. Giving spatial coordinates to an image is called image registration and it’s
achieved by using Ground Control Points (GCP). A GCP is a point that can be
seen on the image and for which we know the spatial coordinates. To
demonstrate, I collected 4 GCPs with a GPS.
672154.3mE
3676508.6mN
672155.6mE
3676594.8mN
672343.7mE
3676601.8mN
672340.0mE
3676508.8mN

39. These GPCs are added to the image within the GIS…

40. The result is
the image is
now registered
–every pixel
has spatial
coordinates…
(note: for
accuracy, a
large number
of GPCs is
required).

41. GIS–GEOGRAPICAL INFORMATION SYSTEM

42. Total Station Surveying & GIS.
INTRODUCTION TO GIS
A Geographic Information
System is a combination of
software and hardware that
can store, manipulate, analyze
and display geographic
information.
What is geographic
information? Any information
that has spatial coordinates
(can be mapped).
The total station data collected
last week falls into this
category. It has spatial
coordinates (UTM) and
attribute data –elevation
values.
Examples of spatial data

44. Final Output with standardsymbology(Alamatts )

45. Thematic Mapping

46. Non Existing Spatial Data
Partially existing
Spatial Data
Existing
Non-Existing
Geo referencing of HR satellite Maps
Vectorization of Land Parcels
Creation of Topology and closed
parcels
ETS and GPS based Georegistration
Generation of Database by Contact
Survey

47. Survey of Cadastral Maps
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48. Generation of New Cadastral
Information

49. Mutation Digitization
2241/
1
2241/
2
2241/
3

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