Cleans and waxes the sports hall

The machine, driven by an electric motor, covers the entire hall independently. Different programs can be selected depending on the degree of soiling. Water and cleaning agents are added to the floor, while the dirty water is removed by brushes and a roller and temporarily stored in a process water tank. Only a protective layer remains, which provides the ideal level of sliding friction for sport according to DIN. The embedded CANopen network connects for example the WDGA multi-turn encoder. They are used to determine the machine’s position in the hall down to the millimeter. „CAN networks are at home in the mobile area,“ explained Francisco Delgado, who is responsible for programming at Infrasport. „All the interfaces and protocols that we needed for our applications were already available“. The host controller assumes the control functions. Not only is the tank‘s fill level monitored, but the positioning of the machine in the hall is also calculated. „The steering axles remain rigid during cleaning,“ said Delgado. „Curves are navigated by varying the speeds on both sides, whereby the measurement has to be extremely precise.“ The machine-builder requested robust encoders with CANopen interface. “The WDGA encoders even allow me to parameterize how precisely I want to record the position values,” said Delgado. “I can select the optimal value depending on the radius of the wheel.”