Door, in particular a high-speed industrial door, comprising: a door leaf which is guided in lateral guides, and which covers a door opening, and which has a first and a second side; and a driving means for moving the door leaf between an opened and closed position; and a door control means for driving the driving means, wherein the door control means comprises a first communication unit; an electrically self-sufficient door leaf means arranged in the door leaf, comprising: at least one sensor unit for detecting at least one physical quantity; and an energy converter that converts non-electrical energy into electrical energy; and a second communication unit, wherein the first and second communication units communicate with each other wirelessly; and at least one actuator unit; and wherein the energy converter has a mechanical energy storage element, a spring and an oscillatable mass attached thereto, thereby converting acceleration movements of the door leaf into damped oscillating vibrations of the mass; the energy converter converts existing mechanical energy of the damped oscillating vibrations of the mass into electrical energy due to the movement of the door leaf; and wherein a degree of freedom of the mass of the energy converter is f = 1, and wherein the degree of freedom of the mass is provided such that it coincides with the essential directions of acceleration of a terminating element of the door leaf. a door leaf which is guided in lateral guides, and which covers a door opening, and which has a first and a second side; and a driving means for moving the door leaf between an opened and closed position; and a door control means for driving the driving means, wherein the door control means comprises a first communication unit; an electrically self-sufficient door leaf means arranged in the door leaf, comprising: at least one sensor unit for detecting at least one physical quantity; and an energy converter that converts non-electrical energy into electrical energy; and a second communication unit, wherein the first and second communication units communicate with each other wirelessly; and at least one actuator unit; and wherein the energy converter has a mechanical energy storage element, a spring and an oscillatable mass attached thereto, thereby converting acceleration movements of the door leaf into damped oscillating vibrations of the mass; the energy converter converts existing mechanical energy of the damped oscillating vibrations of the mass into electrical energy due to the movement of the door leaf; and wherein a degree of freedom of the mass of the energy converter is f = 1, and wherein the degree of freedom of the mass is provided such that it coincides with the essential directions of acceleration of a terminating element of the door leaf. at least one sensor unit for detecting at least one physical quantity; and an energy converter that converts non-electrical energy into electrical energy; and a second communication unit, wherein the first and second communication units communicate with each other wirelessly; and at least one actuator unit; and wherein the energy converter has a mechanical energy storage element, a spring and an oscillatable mass attached thereto, thereby converting acceleration movements of the door leaf into damped oscillating vibrations of the mass; the energy converter converts existing mechanical energy of the damped oscillating vibrations of the mass into electrical energy due to the movement of the door leaf; and wherein a degree of freedom of the mass of the energy converter is f = 1, and wherein the degree of freedom of the mass is provided such that it coincides with the essential directions of acceleration of a terminating element of the door leaf.