Civil engineering, Survey

1. Welcome to PresentationWelcome to Presentation
onon
E D M’s & Total Station’sE D M’s & Total Station’s
byby
K.RAMESHK.RAMESH
Asst. Product ManagerAsst. Product Manager
Lawrence & MayoLawrence & Mayo
SecunderabadSecunderabad..

2. What is Survey
• Surveying is an art of determining
relative positions on the surface of
earth with respect to each other.
• To represent the features of the objects
on the ground graphically in a drawing
the data on the ground will be collected
using different survey methods and
then it will be plotted in the drawing.

3. History of Survey
• In olden days people used to measure
the distance between two destinations
by manual estimation.
• Then linear measuring devises like
chains are came in to use to measure
the linear measurements and cross
staffs to erect right angles.
• To measure the area of a boundary
chains and cross staffs are being used
by the people in olden days.

6. To eliminate this problem theodolites
are introduced to measure the angular
measurements.
• The disadvantage of this method is that
using a cross staff we can divide the
area in to triangles. We can’t measure
the angles accurately with cross staff.

7. In the first generation of the
theodolite family vernire theodolites
are introduced which works with the
principle taking readings using
vernire scales.
• The distance measurement can be
done using stadia constant in the
theodolites.
• In the next generation 1” theodolites
are introduced with the facility to fix
EDM on the top.

8. Then electronic theodolites are
introduced. These theodolites can
also having facility to mount EDM on
the top to measure distance.
• In electronic theodolite angels are
being measured using two scales
which are encoded to display the
angular measurements in digital
display fixed to the instrument.

9. We have to note the angular
measurements from theodolite and
linear measure measurements from
EDM
• To plot the positions on drawing we
have use a protractor and scale.
• If we use co-ordinate system we can
directly plot the position on the drawing
with reference to it’s X or E and Y or N.

10. To calculate co-ordinate from
angular and linear measurements
data we need to do mathematical
calculations.
• These calculations are to be tabled in a
sheet then those readings are to be
marked on a graph sheet to represent
the ground locations in a drawing.

11. What is E.D.M
• E.D.M is the electronic distance measuring
device, measures the distance from the
instrument to its target. The EDM sends out
an laser or infrared beam which is reflected
back to the unit, and the unit uses velocity
measurements to calculate the distance
traveled by the beam

12. Using E D M’s drawbacks

13. EDM’s measure in a straight
line
• If the EDM is held horizontal, the results are
horizontal distance.
• If the instrument does not include a means to
level it, distance must be considered to be a
slope distance.

14. • If the EDM is mounted on a theodolite or
built into a Total Station, horizontal
distance can be determined
• The instrument measures slope distance
and vertical angles, then computes
horizontal distance

15. If mounted separately, slope angle must
be determined by another method to
arrive at horizontal distance.
• If separate, the EDM is usually mounted on
a tribrach.
• Tribrach is a special tripod mount, which
provides an optical means of locating over
a point.

16. What is Total station ?....What is Total station ?....

17.  A total station is a combination electronicA total station is a combination electronic
theodolite and electronic distancetheodolite and electronic distance
measuring device (EDM).measuring device (EDM).
 With this device, as with a theodolite andWith this device, as with a theodolite and
tape, one may determine angles andtape, one may determine angles and
distances from the instrument to points todistances from the instrument to points to
be surveyed.be surveyed.
 With the aid of trigonometry, the anglesWith the aid of trigonometry, the angles
and distances may be used to calculate theand distances may be used to calculate the
co-ordinates (x, y, and z or northing,co-ordinates (x, y, and z or northing,
easting and elevation) of surveyed points ineasting and elevation) of surveyed points in
absolute terms.absolute terms.

19. To calculate co-ordinates, the measuredTo calculate co-ordinates, the measured
angular and linear data is transferred to aangular and linear data is transferred to a
microprocessor in the total station.microprocessor in the total station.
 Using the inbuilt programmes of theUsing the inbuilt programmes of the
microprocessor according to the programmemicroprocessor according to the programme
chosen by the operator the results will bechosen by the operator the results will be
displayed on the screen.displayed on the screen.
 The co-ordinate data can be saved in theThe co-ordinate data can be saved in the
internal or external memory of the totalinternal or external memory of the total
station instrument.station instrument.

20. About pentax
• Pentax’s industry-leading technology
and products backed by our unrivaled
passion for creativity help preserve the
precious moments of life.
• PENTAX Surveying Instruments are
widely used for surveying, mapping
construction and land development.

21. About Pentax Total StationAbout Pentax Total Station
PENTAX R-300X SERIESPENTAX R-300X SERIES

22. AboutAbout PENTAXPENTAX
 PENTAXPENTAX industry-leading technology and productsindustry-leading technology and products
backed by our unrivaled passion for creativity helpbacked by our unrivaled passion for creativity help
preserve the precious moments of life.preserve the precious moments of life.
 PENTAXPENTAX Surveying Instruments are widely usedSurveying Instruments are widely used
for surveying, mapping construction and landfor surveying, mapping construction and land
development.development.

23. JSIMA
JAPAN SURVEYING INSTRUMENTS
MANUFACTURES ASSOCIATION
PENTAX manufactures the most modern surveying
instruments employing superior opto-mechatronics

24.  Pentax R-300x series employ twoPentax R-300x series employ two
unique featuresunique features
 Automatic Environmental SensingAutomatic Environmental Sensing..
 Auto Focusing.Auto Focusing.

25. Auto FocusingAuto Focusing
Telescope focusing has been automatedTelescope focusing has been automated
with push button auto focus capability.with push button auto focus capability.
The operator can also use power focus orThe operator can also use power focus or
manual focus for special situationsmanual focus for special situations

26.  Automatic Environmental SensingAutomatic Environmental Sensing..
The environmental correction (PPM) isThe environmental correction (PPM) is
calculated from data supplied by electroniccalculated from data supplied by electronic
temperature and pressure sensors. The operatortemperature and pressure sensors. The operator
does not need to measure or input this data; thedoes not need to measure or input this data; the
instrument takes care of it automatically andinstrument takes care of it automatically and
continuouslycontinuously

27. Other advanced featuresOther advanced features
Absolute angle encodersAbsolute angle encoders
Electronic vialElectronic vial
Narrow visible beam EDMNarrow visible beam EDM
Laser plummetLaser plummet
Date and timeDate and time
On board processing softwareOn board processing software

28. Absolute angle encodersAbsolute angle encoders
Absolute encoders are used for faster startup,Absolute encoders are used for faster startup,
better vertical angle accuracy and morebetter vertical angle accuracy and more
consistent horizontal reference angleconsistent horizontal reference angle
orientationorientation

29. Electronic vialElectronic vial
Helps to setup the instrument faster on the groundHelps to setup the instrument faster on the ground

30. Narrow visible beam EDMNarrow visible beam EDM
The narrow visible beam lets users see theThe narrow visible beam lets users see the
exact measurement point and get accurateexact measurement point and get accurate
distances into tighter spots than ever beforedistances into tighter spots than ever before

31. Laser plummetLaser plummet
A visible laser plummet increases setup speedA visible laser plummet increases setup speed

32. Camcorder batteriesCamcorder batteries
Standard camcorder batteries are low cost andStandard camcorder batteries are low cost and
widely availablewidely available
IPX6 waterproofingIPX6 waterproofing
Date and timeDate and time
Displays date and time and it stores alongDisplays date and time and it stores along
with each point we measure.with each point we measure.
The IPX6 waterproofing gives serious weatherThe IPX6 waterproofing gives serious weather
protection.protection.

33. PENTAX SOFTWARE
• POWER TOPOLITE
• PSF – SOFTWARE
• PYTHAGORAS

34. POWER TOPOLITEPOWER TOPOLITE
R-300X comes equipped with full-featured PowerR-300X comes equipped with full-featured Power
Topolite software that can help you handle your mostTopolite software that can help you handle your most
difficult survey jobs.difficult survey jobs.
 User definable formats in polar and rectangularUser definable formats in polar and rectangular
 Full graphical display including on screen plottingFull graphical display including on screen plotting
 Icon symbols for ease of useIcon symbols for ease of use
 Easy Data transferEasy Data transfer
 Full range of co go functionsFull range of co go functions
 Open configuration gives access to powerfulOpen configuration gives access to powerful
integrated functionsintegrated functions

35. MeasurementMeasurement
 FileFile
 MeasureMeasure
 ViewView
 Free StationingFree Stationing
 Stake OutStake Out
 I/OI/O
 PreferencePreference
 Internal Memory 20000 POINTSInternal Memory 20000 POINTS (Measured and input(Measured and input
coordinate data)coordinate data)
 Single prism can measure up to 4500 mtsSingle prism can measure up to 4500 mts

36. Power Topo for PENTAX:Power Topo for PENTAX:
Calculations (1)Calculations (1)
 COGO functions:COGO functions:
InverseInverse
PointPoint
Circle radiusCircle radius
Line-arc intersectionLine-arc intersection
Line-line intersectionLine-line intersection
Arc-arc intersectionArc-arc intersection
Distance offsetDistance offset
Point-distance offsetPoint-distance offset
Arc-distance offsetArc-distance offset

37. PowerTopo for PENTAX:PowerTopo for PENTAX:
Calculations (2)Calculations (2)
 2D Surface2D Surface
calculation of 2D and 3D contour of a polygoncalculation of 2D and 3D contour of a polygon
calculation of 2D surface of the areacalculation of 2D surface of the area
 3D Surface & Volume3D Surface & Volume
calculation of the contour, 2D and 3D surfacecalculation of the contour, 2D and 3D surface
calculation of the positive/negative/total volumecalculation of the positive/negative/total volume
 Open/closed polygon (traverse)Open/closed polygon (traverse)
calculation of closing errorscalculation of closing errors
calculation of outlinecalculation of outline
overview of the coordinates of the pointsoverview of the coordinates of the points
graphical display of the pointsgraphical display of the points

38. PSF SoftwarePSF Software
 Data Storage :Data Storage : Job Name, Station Point information, Point number,Job Name, Station Point information, Point number,
HA, VA, Slope Distance and feature code can be stored on the internalHA, VA, Slope Distance and feature code can be stored on the internal
memory.memory.
 Distance StakeoutDistance Stakeout
 RDM MeasurementRDM Measurement
 Offset Shots :Offset Shots :Offsets can be measured manually and input when theOffsets can be measured manually and input when the
prism cannot be positioned because of an obstacle in the way.prism cannot be positioned because of an obstacle in the way.
 Coordinate StakeoutCoordinate Stakeout
 REM MeasurementREM Measurement

39. REMREM -- RRemoteemote EElevationlevation MMeasurementeasurement

40. RDMRDM -- RRemoteemote DDistanceistance MMeasurementeasurement

41. VPMVPM -- VVerticalertical PPlanelane MMeasurementeasurement

42. PYTHAGAROS SOFTWAREPYTHAGAROS SOFTWARE
 Pythagoras is state-of-the art CAD softwarePythagoras is state-of-the art CAD software
for Land Surveying and Civil Engineering. Itfor Land Surveying and Civil Engineering. It
is a very powerful and intuitive application.is a very powerful and intuitive application.

43. Integrates sophisticated calculation and powerfulIntegrates sophisticated calculation and powerful
drawing functions Ground modeling, Road design,drawing functions Ground modeling, Road design,
Contouring, Volume Calculations, Image managementContouring, Volume Calculations, Image management

44. ApplicationsApplications

45. A Smart View Of
Pentax Total Station

46. Other products from
pentax
• Auto focus levels
• Auto levels
• Laser levels
•Electronic theodilitesElectronic theodilites

47. Thank you for your attention!