Installation & Configuration
This is the part 1 of the user guide, that is composed of 3 parts, aiming to describe the installation, configuration, surveying and mapping functionalities of the product.
Part 1 Installation & Configuration
[ Index ] [ Part 1: Installation & Configuration ] [ Part 2 Surveying Waypoints and Paths ] [ Part 3 Premium and Maps ]
Installation and permissions
The application requires location, storage and Bluetooth permissions to be fully functional. The location and storage permissions are explicitly requested to the user during the insta llation process. Each of these permissions targets specific functions, as explained in the figure.
In case, you rejected permissions and you are now facing problems with your current location or geodata exports, you can restore the app permissions on your device Settings.
Configuration
The application can be configured to use either the internal GNSS receiver or an external GNSS receiver. The default configuration uses the internal receiver but it can be re-configured to use an external one.
Internal GNSS receiver: this configuration takes advantages of the new smartphone’s receivers, with improved accuracies from 1.5 to 5 meters, using GPS, GLONASS and other satellite constellations. It allows users to perform simple surveying activities using the location service from Android devices. The configuration when using the smartphone’s builtin GPS receiver is presented in the figure.
Connect to External GNSS receivers: This configuration also allows professionals to use Bluetooth external GNSS receivers to attain better accuracies (e.g. <1m). Firstly, setup your external device to use Bluetooth connections with NMEA messages and then pair the device with your Android smartphone. Finally, on GPS Waypoints Settings you need to select the “External GNSS Receiver” option and the desired Bluetooth paired device.
Location and satellites status
Current location and satellites available: the application identifies the location provider network (cell tower and Wi-Fi) or gps (satellite), the satellites acquisition status and the information of the current position.
The dashboard shows the information of the current position in wgs84 format. The information is calculated from the visible satellites and includes the coordinates, altitude, bearing, speed, accuracy and time of acquisition:
- the Altitude is estimated from ellipsoid altitude representing the current height in meters above Mean Sea Level (MSL) (see example in figure);
- the Bearing represents the GNSS horizontal direction of the mobile device travel;
- the Compass magnetic heading represents the mobile device orientation.
Share My Location: share your current location with another person via messaging application. It could be useful in situations such as meet me on this location or find/help me since I am lost.
Check the GNSS signal status, interferences and statistics: if you are an advanced user, you can get further details of the GNSS service. You can check the status of the GNSS signal (in particular if there are interferences) and you can also get a summary of the GNSS service statistics since it started.
