| 摘要 |
<p>PURPOSE:To obtain the noncontact automatic ticket examination system which performs processes on a card normally even when the transmission and reception of data are in a bad condition by checking the matching of discrimination data when the transmission and reception of the data are restarted after being interrupted. CONSTITUTION:When the card C is inserted into a communication area, a response signal including the discrimination data of the card C is sent out of the card C to an antenna (a). Then the card ID is stored in the RAM 13 of a main body. When the transmission and reception of the data are interrupted after a data writing completion signal is received from the card C, and then restarted, a door is opened without writing the data on the card on condition that the card ID stored in the RAM 13 matches a card ID received at the restart and the card writing completion signal to the card is received. Therefore, when the card C is used as a stored fare card, an initial ride fare is not subtracted double at the time of entrance and an adjusted fare is not subtracted double at the time of exiting either.</p> |
