论文部分内容阅读
为了对学校作息电铃进行自动控制,我们经过反复实践,终于制作成功一台《程序控制自动电铃》.使用效果说明,它具有准确动作,造价低廉,耗电量小,维护方便等特点,适合一般中、小学校使用.下面简述设计,试制过程中的一些有关问题,供读者参考.
In order to carry out the automatic control of school bell, we have succeeded in making a “program control automatic bell” successfully.It has the characteristics of accurate action, low cost, low power consumption, easy maintenance and so on, suitable for general Middle and primary schools to use the following brief design, trial production process some of the issues for readers reference.