| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a radio alarm system easily usable in a station yard, by using an existing interlocking device. <P>SOLUTION: This radio alarm system includes a master machine 10 for transmitting train approach discriminating information by radio transmission by taking in a signal on the train approach from the interlocking device, and a slave machine 20 for giving an alarm when a train approaches by receiving the train approach discriminating information by radio transmission. An opening-closing type surrounding-shaped electric current clamp 11 capable of taking in and out an electric wire in an opening state and surrounding the electric wire in a closing state, is attached to the master machine 10. The master machine 10 takes in a course opening condition AR as a signal on the train approach in a state of surrounding the electric current clamp 11 by the electric wire for generating or sending out the course opening condition AR in the interlocking device. The master machine 10 also takes in a plurality of course opening conditions AR1-ARn, and a manually operable selection setting member 25 capable of setting selection of whether or not to respond to the respective course opening conditions AR1-ARn, is arranged in the slave machine 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
