文档介绍：精选优质文档-----倾情为你奉上
精选优质文档-----倾情为你奉上
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精选优质文档-----倾情为你奉上
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学 号：
课 Wireless rf technology using non-contact two-way communication in the form of radio frequency (rf) can automatically identify the target object and obtain the relevant data, has high precision, strong ability to adapt, strong anti-interference, quick operation and many other advantages. The main content of this paper is the application technology of single chip microcomputer and wireless transceiver technology as the theoretical basis to realize the wireless transmission and status display of data.
First of all, this paper introduces the relevant theoretical knowledge of STC89C52 single chip microcomputer and wireless transceiver chip CC1101. Secondly, this paper introduces how to construct train of thought and plan analysis. This paper introduces the design scheme of the system and the device selection and hardware circuit design of each module, the software design flow chart of the MCU part and the software programming key points of the wireless communication module CC1101. The design and implementation of the 33m wireless communication system based on SCM is completed. The advantage of the 433MHz frequency band is that there is no need to apply for the band license, and the whole antenna is used as the transmitting and receiving antenna, and there is no dead zone in the laboratory environment.
Key words: STC89C52 CC1101 433M wireless communication.
精选优质文档-----倾情为你奉上
精选优质文档-----倾情为你奉上
专心---专注---专业
专心---专注---专业
精选优质文档-----倾情为你奉上
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1基本原理
无线通信就是不用导线、电缆、光纤等有线介质，而是用自由空间来传递电磁信号的通信方式。无线通信主要包括短波通信﹑微波通信﹑卫星通信和红外线通信。而无线收发顾名思义，就是将两块通信模块以空气为传输介质来实现发送和接收数据。发送时，通过模块中携带数据的变化高频电流，在天线上形成电磁波信号，发送出去。而接收端中，天线将接收到的电磁波信号转换为携带数据的变化高频电流。
短距离无线数据传输技术是作为一种无线通信的实用技术广泛应用于工业、农业以及人们日常生活中的，它是在一个单片的射频收发芯片和微控制器以及一些外围的电子器件（如电阻、电容等）构成的无线通信模块硬件电路的基础上，再配合软件上的开发，并按照命令字节的协议进行数据包的操作，便可实现其最基本的无线数据传输功能。简单的讲，只要有微控器，单片射频收发芯片以及少量的外围和显示设备就可以构成一个无线传输系统，传输系统结构如