| 摘要 |
<p>PROBLEM TO BE SOLVED: To calibrate an on-vehicle clock correctly every day without extra manual assistance and make its time information always high in reliability. SOLUTION: A clock 5 is built in a safe 2 of a fare box 1, and a system clock 6 interlocked with a time signal is built in a fare adjusting device installed at an operation origin or the like. The clock 5 in the safe 2 is calibrated with correct time information of the system clock 6 interlocked with the time signal in the fare adjusting device 3 by the operation of mounting the safe 2 to the fare adjusting device 3 and mounting the safe 2 after the discharge of cash fare to the on-vehicle fare box 1, which is daily work of a conductor. In addition, an on-vehicle clock 4 can be correctly calibrated with the calibrated time information of the clock 5 in the safe 2.</p> |
