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所谓“明盗”,指的是一些人直接使用话筒复位开关快速按出对方电话号码,避开电话机锁的作用,直接与对方通话的盗用电话行为。对于“明盗”这种恶劣行为,不但增加了用户电话费,而且严重影响了电话机的使用寿命。为了防止“明盗”行为。笔者设计了电话防“明盗”报警器。只要将该报警器串入电话外线与电话机进线之间,一旦“明盗”出现,喇叭会立即发出警报声,既给明盗者以警示,又给电话用户以通报。与此同时,电路自动切断外线与电话机进线之间联系,使“明盗”者始终打不出电话。
The so-called “Ming Pi,” refers to some people directly use the microphone reset switch quickly press the other phone number, to avoid the role of the phone lock directly with each other to call theft behavior. For “vicious” such bad behavior, not only increased the user telephone charges, but also seriously affected the service life of the phone. In order to prevent “pirates” behavior. The author designed the phone anti-“Ming Pi” alarm. As long as the alarm string into the telephone line between the phone and the phone into the line, once the “pirates” appear, the speaker will immediately give an alarm sound, not only to the identity thieves to alert, but also to the telephone user to inform. At the same time, the circuit automatically cut off the connection between the outside line and the phone into the line, so that “Ming Pi” who can not always call.