Abstract: Method for tracking and exploiting at least one environmental parameter such as cleanness in an urban setting; method comprising the following successive steps: —Planning measurements of at least one environmental parameter; —Tracking in real-time said parameter by means of a camera located on-board a vehicle or fastened to a static holder; —Geo-positioning the parameter; —Classifying the parameter depending on the characteristics thereof, such as category, danger or typology; —Improving the environmental parameter based on the data obtained in the 2 preceding steps. The invention also relates to a device using said method.

Abstract: Method for tracking and exploiting at least one environmental parameter such as cleanness in an urban setting; method comprising the following successive steps: —Planning measurements of at least one environmental parameter; —Tracking in real-time said parameter by means of a camera located on-board a vehicle or fastened to a static holder; —Geo-positioning the parameter; —Classifying the parameter depending on the characteristics thereof, such as category, danger or typology; —Improving the environmental parameter based on the data obtained in the 2 preceding steps. The invention also relates to a device using said method.

Abstract: The present invention relates to a drive comprising a hydro machine whose injection volume is changeable, comprising an adjustment device for the changing of the injection volume of the hydro machine, comprising a first control valve which is in communication with the adjustment device and which is connected such that it effects a position of the adjustment device causing a low injection volume in a first position and effects a position of the adjustment device causing—compared with this—a large injection volume in a second position.