| 摘要 |
PROBLEM TO BE SOLVED: To provide a line abnormality notification system capable of quickly and adequately notifying a worker of an abnormal state when abnormality occurs in a plurality of lines.SOLUTION: A line abnormality notification system comprises a master station 1, a slave station 2 provided on each line L, and a portable worker transceiver 3, and mutual communication between them is performed by radio using transceivers 4, 7. Each slave station 2 is able to transmit a tone signal into which an abnormal state of the line L on which its slave station 2 is provided is coded to the master station 1 by having the transceiver 7 of the slave station input the tone signal. The master station 1 collects the abnormal state of each line L by radio communication with each slave station 2, converts the obtained abnormal state into a message voice signal by a voice synthesis circuit 10 to give it to a worker instruction transceiver 12, and gives notice by wirelessly transmitting to the portable worker transceiver 3. A worker W is able to receive notice regardless of the position or direction or distance relative to the line L. |
