Improving Workflow Efficiency
using the Trimble R10
with SurePoint
Content
Trimble
®SurePoint
™technology
Trimble R10 (1) eBubble, (2) tilt auto-measure and
(3) tilt compensated points:
– Hardware sensors
– Calibrations and environment
– Demo
Examples of using R10 with SurePoint
How do you achieve an improved workflow efficiency
Summary of Trimble SurePoint
Trimble SurePoint
Built into Trimble S-Series total stations for many
years
Ensures precise measurements
Remains aimed at target to guard against:
– Sinkage
– Accidental bumps
– Pressing key with excessive force
Trimble SurePoint in GNSS
SurePoint technology has been expanded to GNSS
receivers:
– eBubble
– Tilt auto-measure
– Compensated points
Improves field time efficiency by 30-50%
automatic measurements and no leveling
Enables traceability of pole tilt information
Enables measuring points which were not
directly accessible before
eBubble
An electronic bubble displayed on measure and
stakeout forms in Trimble
®Access
™software
eBubble – What Does It Do For You?
No need to continuously monitor the display of the controller and the physical pole-bubble at same time
Enables you to keep the pole more stable during measurement
No need to be ‘close’ to the pole
Eliminates errors:
– Not properly calibrated physical bubbles
– Not temperature affected like physical bubble
Traceability:
– records tilt data for every single measured point
eBubble – Hardware and Environments
Dual axis accelerometer
– Sense acceleration
– R10 leveling gravity
– Provides tilt information
Any environment is suitable for accelerometers (almost)
These notes also count for tilt auto-measure (to follow)
geBubble – Calibrations
Why is calibration needed?
– To adjust and align dual axis accelerometer with local gravity field
– To ensure accuracy of tilt information (and stored with measured points)
What if I don’t calibrate?
eBubble – Calibrations
How often is (re-)calibration needed?
– When:
the R10 suffers severe abuse, e.g. pole drop
you enter an area with significantly different local gravity conditions, e.g. a massive
granite mountain
reaching the user-defined ‘calibration age limit’
current inside temperature of the R10 is more than 30ºC compared to the last calibration
eBubble – Calibrations
Is there something I need to take care of while calibrating?
– Pole straightness:
a bent pole will directly affect the accuracy of the calibration, especially when you use a different pole for the actual
measurements
– Bubble reference:
calibrate against properly calibrated physical bubble
– Pole stability:
receiver should be as vertical and as stable as possible, a bipod (or similar) helps the most
eBubble – Options and Calibrations
Needed for eBubble and tilt auto-measure
Needed for tilt
eBubble
Important note:
– Always operate the R10 with the LED panel facing towards you;
this ensures that the eBubble acts in the same direction as a physical bubble does on a pole
Tilt Auto-Measure
Tilt Auto-Measure –
What Does It Do For You?
Uses eBubble to trigger a fully automated point measurement point measurement starts as soon as the R10 is level
Speeds up the point measurement workflow, especially when there are a lot of points needed to be measured
Eliminates the slight tilt deflection when pressing the ‘Measure’ key
helps keeping the pole 100% steady from the moment the measurement starts
Compensated Points
Measures points which compensate for a tilted pole
(up to 15º)
Compensated Points –
What Does It Do For You?
Uses internal tilt and compass sensors to determine the spatial relationship between the Trimble R10 and the tip of the survey pole
Allows you to directly measure points which were not accessible before with GNSS receivers or only through time-consuming offsetting technique
Eliminates the need of having the pole always level for measurements
Compensated Points –
Hardware and Environments
Magnetometer
– Senses any magnetic field:
We want to sense earth’s local magnetic field and compare to R10 internal magnetic model
Good environment
– Away from any metal objects or objects that generate magnetic fields
Bad environment
– Vehicles & heavy machinery
– High voltage overhead or underground power lines
– Metal reinforced buildings and more….
Compensated Points –
Compensated Points – Calibrations
Why is calibration needed?
– To determine the R10’s magnetic characteristics in the ideal earth’s magnetic field in the area
– To align magnetic model with the axis of the R10
What if I don’t calibrate?
– Tilt corrected coordinates will be wrong
Compensated Points – Calibrations
How often is (re-)calibration needed?
– When you enter an area with a different local magnetic environment
– Otherwise the same rules apply as the tilt sensors for eBubble and tilt auto-measure
– NOTE: every time you recalibrate the tilt sensor, it invalidates the magnetometer model alignment and therefore a new calibration is needed
Are there additional considerations I need to be aware of
while calibrating?
– Stay far away from any magnetic disturbance!
– Calibrating the magnetometer near sources of magnetic disturbance
Compensated Points –
Options and Calibrations
Compensated Points
Can Trimble Access detect a bad environment?
–
Yes: if the sensed local gravity field does not match the
expected (model) gravity field, Trimble Access will show
you “Magnetic field disturbed”
Compensated Points
Compensated Points
Magnetic disturbance
– 0-9: Correctly calibrated magnetometer and
environment is free of magnetic interference
– 10-50: Magnetometer is not correctly calibrated AND / OR moderate magnetic disturbance in the environment Trimble Access will show warning in status line and ask for confirmation upon storing the point
– 51-99: Magnetometer is not correctly calibrated AND / OR severe magnetic disturbance in the environment Trimble Access will not be able to store the point unless the pole's tilt distance is <0.4inch (1 cm) of level
How Do You Achieve an Improved
Workflow Efficiency?
Make sure your eBubble is ON every time you measure
a point
Enable the following options in your
Survey Styles
or
under
Measure Points/Options
:
– Tilt auto-measure
– Auto store point
– Auto abandon
How Do You Achieve an Improved
Workflow Efficiency?
Auto store point
– automatically stores the point when the preset occupation time and precisions have been met
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
Auto abandon
– automatically abandons points that experience excess tilt, or excess movement, during the measurement process and the process is restarted
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
Start using ‘compensated points’:
– For difficult to access points no need to offset anymore
– Repeated topographic points eliminates leveling time
How Do You Achieve an Improved
Workflow Efficiency?
How Do You Achieve an Improved
Workflow Efficiency?
If you follow these settings….
You save approx. 30%-50% of your time by:
– Automatically triggering point measurements for each single point less button clicks for the same goals
– Not having to level the pole for every single point
Points are more precise:
– Focus on one thing (eBubble only!) during measurement. No continuously swap monitoring of ‘time to go’ and
physical bubble.
Summary of Trimble SurePoint
Faster data collection
Measure points that were previously inaccessible
Eliminate common sources of GNSS measurement error
100% traceability
Reduce operator fatigue
Find out more…
Visit our Partner Pavilion and see a demo of the R10 with SurePoint technology
Chat with one of our friendly and helpful Trimble staff. They are happy to help and explain it to you
