| 摘要 |
A device for monitoring the operation of an elevator car, said device comprising a measuring unit, provided for measuring a parameter value of a parameter, indicating at least a vertical movement of the elevator car, and a processing unit, provided for processing said parameter value, said measuring unit comprises a buffer memory, provided for temporarily storing a first set of successively measured parameter values, said device further comprises a recognition unit, provided with a local memory for storing a second set of parameter values, identifying a travel of the elevator car, said recognition unit being further provided for retrieving said first set from the buffer memory and for performing a matching operation on the first and second set and for generating a trigger signal when said first set matches with said second set, said recognition unit being connected with said processing unit, which is provided for retrieving said first set from said buffer memory under control of said trigger signal. |
