Crane installation, in particular container crane
AssigneeSiemens Aktiengesellschaft
InventorsErnst Sparenborg, Jorg Meyer, Uwe Meyer
Life of this patent
Estimating the term…
Abstract
A crane installation, especially a container crane, for moving a load, especially a container, includes a first stored-programmable control unit which, if required, receives signals resulting in a safety-related control command to one or several electric or electro-mechanical operational elements, and a second stored-programmable control unit which is configured in such a way that it can at least partially monitor the control operation of the first control unit on the basis of safety-related signals transmitted to the second control unit. If the safety-related control command of the first control unit is improper, the second control unit is able to issue its own control command to an operating element.
Claims11
A crane installation for moving a load, comprising:
- an electric or electro-mechanical operating element;
- a first stored-programmable control unit constructed to receive a safety-relevant signal for issuing a control command to control the operating element;
- and
- a second stored-programmable control unit constructed to at least partially monitor a control operation of the first control unit in response to a received safety-relevant signal and to override the first control unit for controlling the operating element, when the first control unit issues an improper control command,
- wherein the first control unit is constructed for executing a plausibility check of the signal transmitted to the second control unit on the basis of the signal received by the first control unit.
Dependencies are inferred from the claim text.