| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bus location system capable of acquiring operation information, without use of cable line by a display device, even when the display device cannot directly receive operation information on route bus transmitted from a central device by radio. <P>SOLUTION: A central device 1 transmits created operation information to display devices 2 installed at a bus stop 20 which a route bus 3 will reach next and at the following bus stops 20. The display device (master) 2a directly receives the operation information directed to the display device (slave) 2b transmitted from the central device 1 by radio, and directly transmits it to the display device (slave) 2b by radio, and the display device (slave) 2b directly receives the information by radio. <P>COPYRIGHT: (C)2012,JPO&INPIT |
