Description: In this paper, it introduces that 4-wire answering device circuit designed by module, and the logical function of them with the display of the circuit and waveform. The device is no more than the lock and reset function: the seat light and the speaker clued on reply successful displaying of the player number and the count down timer the timer can be set up by design the reply count down timer can be paused, for that one question could be replied more than once until the timer run to zero and speaker work there are 5 seconds alarming during answering etc. All these functions would make the device close to praxis, more brainpower and more humanistic.
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ydz-智力抢答器1.doc
图片.ppt
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