论文部分内容阅读
随着我国通讯事业的发展,电话正在走入普通家庭。它在给人们带来方便和欢乐的同时,也给人们带来了某些疑虑:假若有人在电话线上并接话机或盗用电话线路打长途电话,岂不给家庭带来经济损失,假若家中安两部话机,通话内容又不想让家人监听或需要录下谈话内容又如何是好呢?本人针对以上问题,设计并自制了一台多功能电话控制器,可以防止他人盗用电话线路,同时具有同线分机电话间的互相保密及实现电话通信录音记录的功能。该控制器原理简单,选材制做方便,成本仅十几元,无需外接电源,适合家庭使用。
With the development of China’s communications industry, the phone is entering the ordinary family. While bringing convenience and happiness to people, it also brings some doubts to people: If anyone is on the telephone line and dial the telephone line or make long distance calls, will not bring economic loss to the family, if the family Zhong An two telephones, the contents of the call do not want to let family members listen or need to record the contents of the conversation and how is it? I am in response to the above problems, I designed and built a multi-function telephone controller to prevent others from stolen telephone lines, With the extension of telephone interoperability between telephone and telephone recording and recording functions. The controller principle is simple, material selection made easy, the cost is only ten yuan, no external power supply, suitable for home use.