一种数显对讲传呼系统的设计

A Design of a Communication Device with Alphanumeric Display and Dialogue Function

本文从设计，制作的角度，介绍一种低成本的，具有数显及对讲功能的传呼系统。该系统采用现代数字科技，克服了传统数显传呼传输线多的缺点；采用双线变换电路，实现较完善的双工对讲功能。而整体系统则是数显传呼与双工对讲机较完善的有机组合体。

A low cost communication device with alphanumeric display and dialogue function is introduced from the angle of design and manufacture in this paper. By the use of modern digital technology,the shortage of too much wiring of the traditional alphanumeric display communication device is conquered;meanwhile,a relatively perfect dual -mode dialogue function is realized with the usage of a double line tranformation circuit. The whole system is the combination of the two function-alphanumeric display communication and dual-mode dialogue.