| 摘要 |
PURPOSE:To discriminate the identification of the passer of the gate and whether he is entering or leaving the room without separately providing entrance/exit management gates by arranging plural antennas to a device used for the ID enrance/exit management system and insorporating an antenna switching circuit and the time division circuit of each antenna to a computer. CONSTITUTION:Plural ID antennas AT1, AT2, and AT3 are arranged on the gate to identify the passer of the gate and discriminate whether he is entering or leaving the room. Respective antennas AT1, AT2, and AT3 are connected to the switching device, which is connected to the controller. The controller incorporates a signal generation circuit dividing the antennas in time division, circuit driving the switching device by the signal, antenna signal processing circuit, and the computer of the circuits to communicate with a data carrier and compare and collate the data of the signal. The controller is connected to a display device displaying the identified and discriminated data. |
