Abstract: System and method for constantly monitoring the state of the oil of the wheels of heavy machinery, in particular mining trucks, while they are in motion. Comprising a server; a wireless sensor module attached to the rim of the wheel, obtaining oil measurements from an oil quality sensor, which sends the measurements to the server wirelessly; the sensor, located inside the sensor module; and a spoon-type mechanism which maintains the sensor in permanent contact with the oil inside the wheel, wherein said spoon-type mechanism rotates with the sensor module and the wheel. In addition, it may comprise a receiving antenna module which is located between the sensor module and the server. In addition, it may comprise a transmitter which is located between the receiving antenna module and the server.

Abstract: Method and device for aiding the guidance of an aircraft having to comply with at least one time constraint. The device can determine and present on a screen of the flight deck an offset in distance (?D) between the aircraft (AC) and a reference aircraft (Aref) which is defined to fly along the flight plan (TV) at an optimal speed to comply with the time constraint.

Abstract: Method and device for aiding the guidance of an aircraft having to comply with at least one time constraint. The device can determine and present on a screen of the flight deck an offset in distance (?D) between the aircraft (AC) and a reference aircraft (Aref) which is defined to fly along the flight plan (TV) at an optimal speed to comply with the time constraint.

Abstract: A time constraint checking device performs a method for checking whether an aircraft is able to fulfill a plurality of successive time constraints corresponding to required times of arrival at a plurality of corresponding waypoints. The method includes comparing, for each of the waypoints, a comparison value depending on the time constraint with either an estimated time of arrival or minimum and maximum possible times of arrival based on speeds of the aircraft. The method performs different comparisons depending on whether the time constraints for a particular waypoint are a single time value or a time window, and an optimized time of arrival for meeting all future time constraints is also possible.

Abstract: Method and device for checking that an aircraft fulfils successive time constraints. The device comprises means for comparing, for waypoints (Pi-1, Pi), a comparison value depending on the required time of arrival (Ti-1A, Ti-1B) with minimum and maximum times of arrival based on constant speeds of the aircraft (AC).