Abstract
Elevator Remote Maintenance System" has been put into market to increase availability of elevators by minimizing down time caused by malfunctions and maintenance work. This system carries out continuous inspection on elevators, which was formerly done by service engineers on periodical visits to the buildings, 24 hours a day and 365 days a year, without stopping the elevators. As an additional function to the said system, we have developed "Remote Diagnostic Operation" which automatically conducts diagnosis on the selected important equipment, as an alternative to the advanced diagnosis done by service engineers. The "Remote Diagnostic Operation" includes two primary diagnostic functions. One is "Regular Operation Diagnosis" on the basic performance of elevator such as door operations, brake torque and so on. The other is "Emergency Operation Functions Diagnosis" which diagnoses motion and operations during various emergency operations.
