| 摘要 |
PROBLEM TO BE SOLVED: To provide a remote monitoring system for an elevator which can minimize a non-usable time of an antenna by notifying a monitoring center of its situation even if a radio wave cannot reach due to the lowering of the radio field intensity of the radio communication antenna by a change of an ambient environment.SOLUTION: In this system, in a remote monitoring device 4 which measures a situation by a radio field intensity measurement function 44 even if the radio field intensity of an antenna 51 which is connected to a radio communication device 5 in a hoistway 1 is lowered due to a change of an ambient environment, a radio field intensity determination function 47 determines a floor at which the radio field intensity of an antenna 52 from a radio field intensity storage function 46 becomes maximum when an antenna selection function 43 notifies a monitoring center 8 of an abnormality of the antenna 51 by a monitoring center notification function 42 after the antenna selection function is switch-connected to the antenna 52 which is arranged at a car 2 with respect to the device 5, a hoist control function 48 transmits the floor at which the radio field intensity becomes maximum as a stop floor after moving the car 2, and thus, notification can be suitably performed.SELECTED DRAWING: Figure 1 |
