Function
The infrared distance sensors make it possible to determine the distance to objects
around Robotino. Robotino has a total of nine infrared sensors arranged at an angle of
40 ° to each other around the base.
Each distance sensor supplies a voltage value in volts whose magnitude depends on the
distance to a reflecting object.
Configuration
The distance sensors are designed for industrial use and therefore always reachable.
Assembly and connection
The distance sensors are installed in the lower area of the chassis and connected to the
power electronics board. Three sensors each are connected via a ribbon cable.
Technology
The infrared distance sensor allows accurate relative distance measurements of an object
between 4 cm and 30 cm. Its peculiarity is its easy connection, which consists only of
power supply and an analogue output signal. Its evaluation electronics measures the
distance and outputs it via an analogue voltage signal.
The diagram shows the dependence of the voltage value of a distance sensor on the distance
to a reflecting object. Since the voltage drops off very close objects, the sensor can not
detect objects under 4 cm.
Technical Documentation
The used infrared distance sensor GP2Y0A41SK0F comes from the company Sharp.
