摘  要：相比较于无线技术而言，有线技术存在资源浪费，不够便捷等诸多缺点。最近的几年，无线技术的使用得到了快速的开展，它无论是应用于传统的服务型行业还是高科技领域都已经得到了空前的发展，但是由于资源不均衡原因，无线技术的应用还没有全部普及。本次设计主要针对相对不够完善的医疗病床呼叫服务方面。现如今许多医院仍旧采用有线呼叫形式，这可能使得病人服务问题不能得到有效解决。此次的设计采纳的以STC89c52单片机为中心，实现多路遥控板和主机板之间进行无线传输的功能。本次设计也设有提醒报警功能，通过硬件和软件的交互设计实现了医助和病人之间远距离沟通，并且当多个病床有需求时，不会相互干扰能够依次交替显示，本设计理论传输距离50m，本设计具有体积小，传输距离长，操作简单，性能稳定，功能齐全等特点，是无线技术应用于医疗病床服务的有效尝试，有着良好的可行性。

该论文有图10幅，参考文献8篇。

关键词：无线技术  医疗服务  STC89c52单片机  无线传输 

Wireless Bed Call System

Abstract：Compared with wireless technologies, wired technologies have many disadvantages such as waste of resources and inconvenience. The nearly years, the application of wireless technology has been rapidly developed. It has achieved unprecedented development whether it is applied to the traditional service industry or the high-tech field. However, because of the unbalanced resources, the application of wireless technology has not yet been applied. All popular. This design mainly focuses on relatively imperfect medical bed call services. Many hospitals still use wireline calls today, which may make it impossible to solve the problem of patient services. This design uses the STC89c52 microcontroller as the core to realize the function of wireless transmission between the multi-channel remote control board and the main board. This design is also equipped with a reminder alarm function. Through the interaction design of hardware and software, long-distance communication between doctors and patients is achieved. When multiple beds are in demand, they will not interfere with each other and can be alternately displayed in turn. This design theory With a transmission distance of 50m, this design has the characteristics of small size, long transmission distance, simple operation, stable performance and complete functions. It is an effective attempt to apply wireless technology to medical bed services and has good feasibility.

The paper has 10 figures and 8 references.

Key Words: wireless technology  medical service  STC89c52 microcontroller   wireless transmission 

目  录

摘  要 I

Abstract II

1 绪论 1

1.1课题研究背景和意义 1

1.2具体目标和完成内容 1

1.3设计的可操作性 2

2 设计材料准备与系统方案设计 3

2.1 设计材料的准备 3

2.2系统方案的设计 3

3 硬件电路的设计 4

3.1整体硬件设计原理图 4

3.2无线发射部分 5

3.3无线接收部分 5

3.4单片机控制部分 6

3.5数码管显示部分 7