1．该设计是一个6层自动升降电梯的控制电路；

2．每层电梯入口处设有上下请求开关，电梯内设有乘客到达楼层的请求开关；

3．设有电梯所处楼层指示和电梯运行模式指示；

4.电梯的上升和下降时间均为2秒；

5.电梯到达停站请求后，开门时间为4秒，关门时间为3秒；

6.能记忆电梯内外的所有请求信号，并按照电梯运行规则次序响应，响应动作完成后清除请求信号；

7.能检测是否超载，并设有报警信号；

8.方向优先规则：当电梯处于上升模式时，只响应比电梯所在位置高的上楼请求，有下而上逐个执行，直到最后一个上楼请求执行完毕，因此更高层有下降请求则直接到有下楼请求最高层接客，然后进入下降模式。电梯处于下降模式时，与上升模式相反。-A. The design is a six-layer control circuit of the automatic elevators　Each floor elevator entrance. Up and down a request to switch, elevator equipped with a passenger to reach the floor request switch　Floor with elevator in which instructions and lift mode of operation instructions　elevator rise and fall times are 2 seconds　5. The elevator to stop at the stations to request the opening hours for 4 seconds, the closing time of 3 seconds　can memory elevator inside and outside the request signal, and in accordance with the order of the rules of operation of the lift response, the response action is complete, clear request signal　7 can detect overload, and has an alarm signal　8. direction priority rule: When the elevator in a rising mode respond only to requests than the elevator location upstairs, under the previous one by one implemented until the last one upstairs request completed, so the higher-level decline the request directly to the downstairs and request the most senior