Operating state detection system for work machine with fusion considering sensor value reliabilty

A harvesting machine (100) having an operating state, the harvesting machine (100) comprising:

• a main frame (112);
• a threshing and separating assembly (124) supported on the main frame (112);
• a feederhouse (118) supported on the main frame (112);
• a header (116) supported on the feederhouse (118);
• and
• a system for detecting the operating state of the harvesting machine (100), comprising:
• at least two sensors (160, 162, 164, 166, 168, 170, 178b, 178c, 178e, 178f, 178g, 172a, 172b, 174, 178a, 178d) configured to sense parameters affecting an operation state of the harvesting machine (100);
• an operating state evaluation circuit (228) configured to generate an operating state signal value (232), wherein the operating state signal value (232) indicates an operating state of the harvesting machine (100), and wherein the operating state evaluation circuit (228) is configured to generate the operating state signal value (232) based upon first signals from the at least two sensors (160, 162, 164, 166, 168, 170, 178b, 178c, 178e, 178f, 178g, 172a, 172b, 174, 178a, 178d);
• and
• a weighing function evaluator (240) configured to receive second signals from the at least two sensors (160, 162, 164, 166, 168, 170, 178b, 178c, 178e, 178f, 178g, 172a, 172b, 174, 178a, 178d) and configured to generate a reliability signal indicating a reliability of at least one of the first signals;
• wherein the operating state evaluation circuit (228) is operable to receive the reliability signal and, during evaluating the operating state of the harvesting machine (100), to weight the first signals based on the reliability signal.