Patent ID: 7370732
Filing Date: 2008-05-13
Classification: B66B

Abstract:
1. A method of automatically checking availability of an elevator installation having at least one elevator comprising the steps of: a. generating to the elevator installation at least one predetermined command for carrying out at least one test of the elevator installation; b. registering at least one reaction of the elevator installation to the at least one predetermined command; c. comparing the at least one reaction with a desired reaction of the elevator installation, wherein the test in the case of availability of the elevator installation leads to the desired reaction; d. ascertaining at least one of a first estimated value for a use frequency of the elevator for a first time period and a second estimated value for the use frequency for a second time period, wherein the second time period begins at a later instant than the first time period; e. determining a measurement value for the use frequency for the first time period; f. comparing the measurement value with at least one of the estimated values; and g. generating the command for carrying out the test when the measurement value is smaller than the compared estimated value by a predetermined amount.