DEVICES AND METHODS FOR INDICATING AN EXTERNAL FACTOR ON THE HULL OF A BOAT

• Main Authors: OLSSON, Hjalmar, SEYVET, Nicolas, KVERNVIK, Tor
• Format: Patent
• Language: English; French; German
• Published: 03.02.2021
• Subjects: ALARM SYSTEMS; CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; EQUIPMENT FOR SHIPPING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; ORDER TELEGRAPHS; PERFORMING OPERATIONS; PHYSICS; REGULATING; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; TRANSPORTING; WIRELESS COMMUNICATIONS NETWORKS

A method performed by a first communication device operating in a wireless communications network. The first communication device obtains a first set of one or more values indicating an observed speed of a boat relative to a power of an engine of the boat. The speed and the first indication are obtained by from sensors in the boat. The first communication device then obtains a second indication of an external factor on the hull of the boat causing friction against water. The obtaining of the second indication is based at least on: the obtained first set, and a reference. The reference is based on one of: a) a threshold, and b) a mathematical model. The first communication device also initiates providing a third indication of the external factor to a device, based on the obtained second indication.