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Note
: To enter the pulse length manually, use the
page in the Configuration menu in the
.
8.9 Reversing Detection
Reversing detection is an algorithm that can detect when the vehicle is travelling backwards. Knowledge of
reverse motion is important when using velocity heading or odometer input to provide correct results. If Boreas is
fitted to a vehicle that does not reverse or doesn't use velocity heading or an odometer, this function should be
disabled. Reversing detection is enabled by default and it can be disabled using the Filter Options page in the
web UI or Boreas Manager. See
9.1 Using the Web User Interface
or
.
8.10 Motion Analysis
Motion analysis is an artificial intelligence algorithm that associates patterns in high frequency inertial data with
the speed of the vehicle. After power on it takes some time to match patterns with speed before it will become
active. Motion analysis only activates when dead reckoning and is most effective when the vehicle is near
stationary. Motion analysis does not work in all situations and its primary benefit is for ground vehicles. It should
be enabled in any car application. Motion analysis is enabled by default and can be disabled using the
page in the web UI or Boreas Manager.
8.11 RTK
The Boreas internal GNSS receiver supports RTK GNSS which uses correction data (RTCM messages) from a
nearby base station to provide accuracy of up to 0.01 m in real time. An RTK system requires additional
infrastructure equipment to generate and receive corrections data, and is not practical for all applications.
Customers who require this level of accuracy but do not need it in real time should consider using
.
There are two different methods for receiving RTK corrections:
l
Network
l
Radio modem
For applications where Boreas can achieve internet access, network RTK corrections (NTRIP) are
recommended.
For applications that are unable to access the internet, radio modems can be used to communicate between
Boreas and the base station, see
.
Note
: If you do not need high accuracy positioning in real time, for example if you are planning to use
Kinematica to post-process log files, an RTK system may not be necessary at all.
8.11.1 Network RTK Corrections (NTRIP)
NTRIP can be configured in three ways:
1.
Using the Boreas Web UI
in the Configuration Menu.
2.
Using the Boreas Manager application, select
under the Tools menu.
3.
Using the Spatial Manager for Android application. This is convenient for field testing or when temporary
RTK corrections are required, for example for performance trials. Download from the
store.
Any of these NTRIP clients can connect to a network RTK service to stream RTK corrections to Boreas. This
requires that the client is connected to the internet, and a valid subscription with a local network RTK service.
Contact
if you need assistance in setting up for network RTK corrections.
v1.2
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11 Oct 2022
Boreas Reference Manual • Using Boreas