摘要
针对传统的医院有线呼叫护理系统中布线困难、不易改扩建的缺点,采用专用射频无线收发芯片nRF401,设计一种参数稳定、功耗低、体积小的无线护理呼叫系统。该系统基于单片机多地址编码技术,对每个分机设置不同的地址编码,从而有效降低系统呼叫时的误码率和呼叫主机间的干扰,提高了系统容量,易于扩展。
In order to solve the disadvantages of difficult installation for wiring and low extensibility in traditional hospital sickroom wire calling systems,this paper uses a special radio transceiver chip NRF401 and gives a design of hospital sickroom wireless calling system with stable parameters,low power consumption and small volume. Our system is based on the multi - address code technique. It can set each extension with different address code, which efficiently reduces Bit Error Rate （BER） and interference of hosts,and thus makes an improvement of capability and extensibility.
出处
《现代电子技术》
2007年第14期167-169,172,共4页
Modern Electronics Technique
