由按键模拟投票，并操作下位机，接收到的投票信息送入到下位机。下位机与主控机串行通信，将投票信息传到主控机，全部投完之后等待主控机送回投票结果。主控机统计投票结果，并通过定时系统限定投票时间，时间到之后显示投票结果，并将结果送回下位机显示。-By button mock voting, and operates under the digital machine, receive voting information sent to the next bit plane. Under-bit machine with主控机serial communications, information transmitted主控机will vote, all voted主控机returned after waiting for the outcome of the referendum.主控机statistical outcome of the vote, and vote through the timing system limited time to time after the results are displayed, and the results show back to the next bit plane.