| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a simpler construction to achieve an ATS-P ground element with a failure detecting function which can detect a failure with a telegram memory and a transmitter. <P>SOLUTION: This ground element includes: transmission means 21 and 22, which send a telegram Ma for transmission including information for train stop control onto a track 11 in waves of 1.7 MHz, reception means 23 and 24, which receive the waves and generate a received telegram Mb, a telegram generating means 41, which holds a telegram Ma for transmission and a telegram Mc not for transmission with the same content as it in the different storage areas of a telegram memory 43, reads out the telegram Ma for transmission from the telegram memory 43, sends it to the transmission means 21 and 22, and reads out a telegram Mc not for transmission, too, at that time, and a collation means 45, which compares the received telegram Mb with the telegram Mc not for transmission and makes it normal if they are in accord and makes it abnormal if they are not in accord. <P>COPYRIGHT: (C)2012,JPO&INPIT |
