Operation Manual

10
4. System elements
4.1 Stationary beacons
- Usually, mounted on the walls or ceilings above
the robot with ultrasonic sensors facing down—to
provide the most robust unobstructed ultrasonic
signal coverage to the robot. However, for
automatic landing and indoor navigation of
copters, for example, it is recommended to install
mobile beacon horizontally on the belly of the
copter so that the beacon would be looking
downwards
- The position and orientation of the beacons
should be chosen in a way that provides
maximum ultrasonic signal coverage. System
efficacy strongly depends on the quality of
ultrasonic signal received by stationary beacons
- Stationary beacons emit and receive ultrasound
during the map configuration period. Once the
map is formed and frozen, they only work as the
receivers
- Stationary beacons have no exterior differences with regard to mobile beacons
- Inertial measurement unit (IMU) is not installed on the stationary beacons
- The mobile and stationary beacons can be easily interchanged by selecting
corresponding option (except for IMU) during configuration in the Dashboard
- There are 433MHz and 915MHz versions available. A proprietary radio protocol
is used for communication and synchronization. Other ISM bands are available
upon request as well
- Stationary beacon can be equipped with full-size 165mm antenna (for 433 MHz),
which provides more robust radio connection between modem and beacons
* Full-size 165 mm antenna is optional.