| 摘要 |
PURPOSE: A public opinion survey system using a ticket punching door of subway is provided to rapidly collect the data of many places with small manpower and to make a surveying target voluntarily participate in the survey by making the target use a free subway. CONSTITUTION: A public opinion survey company(b) transmits the questionnaire contents to a ticket punching door of subway through an on-line network(6) and the questionnaire prints out from the outlet(3) of questionnaire paper. An entrance is opened if the survey target receives the questionnaire and a card out of the questionnaire outlet and card outlet(4) and the survey target fills up the card until the destination of target. The exit is opened by inputting the card to the card inlet(8) of destination ticket punching door, the data transmits to the central computer(7) and the central computer completes the public opinion survey by processing the received data. |
