公用IC卡电话机测试仪的研制

 随着公用IC卡电话机的日益普及，在安装IC卡电话机以前以及在其使用过程中，对IC卡电话机的拨号、计费等各项功能的测试，显得日益重要。提出了一种基于单片机的公用IC卡电话机测试仪，以ATMEL公司的AT89C55为核心，加上外围的功能模块，构成测试仪的硬件部分；再按其功能模块进行相应的软件设计。该仪器现已被多家电信局使用，给电信局的测试工作带来了方便。实践证明该仪器具有界面友好、操作简单、功能齐全、测试方便等特点。

Research on public IC card telephone detector

With the popularization of the public IC card telephone, the dial, charging functions' test of the telephone attracts people's attention more and more. This paper shows a king of the public IC card telephone detector based on the microprocessor plus the peripheral function module, both formed the hardware of the IC card telephone detector. Then design the corresponding software of the structure according to the function module. This detector have been used by some telecom bureau, which takes convenience to the telecom bureau and benefits to the consumer. Its application proved that the detector had these characteristics, for example, friendly interface, simple operations, the full functions and convenient detection.