摘要随着无线数据传输技术日益朝着低功耗、高速率的方向发展，它现在已经被应用到许多新的领域。同时又为了满足人们对于能源消耗速度的需求，低功耗技术的发展就显得格外重要了。但因为射频技术领域并没有非常成熟，所以发展的过程中还存在一些局限性。78063

本文介绍的是基于单片机的低功耗无线射频技术研究，并根据无线射频技术和单片机原理完成一套无线收发系统的设计。射频是无绳电话，雷达，GPS，广播和电视节目等无线通信技术使用的一种通信模式。设计该系统时，考虑到低功耗、稳定性和难易程度最后选择了STC89C52RC单片机和nRF24L01低功耗无线射频芯片。该系统一共分为两部分，第一部分将nRF24L01射频芯片置为发送状态，通过STC89C52RC自带的独立按键控制数据的发送。第二部分将nRF24L01置为接收状态，等到接收到发送端发来的数据之后在电子屏上显示。最后通过测试证实，该系统能够正确地通过无线射频芯片传输数据，有很强的抗干扰能力，符合设计的需求。

毕业论文关键词：单片机；无线；射频；低功耗

Abstract With the development of low-power and high-speed wireless data transmission technology, wireless data transmission technology is constantly being applied to new areas。 At the same time, the development of low-power technology is particularly important in order to meet people's needs for energy consumption rate。 But there are still some limitations in the process of development because the field of RF technology is not very mature。 

This article describes the research of low-power wireless RF technology based on microcontroller, and to complete the design of a wireless transceiver system according to the radio frequency technology and the principle of MCU。 Radio Frequency (RF) is the mode of communication for wireless technologies of all kinds, including cordless phones, radar, GPS, and radio and television broadcasts。 Taking the low power, stability and ease into account ,this system finally chose the STC89C52RC MCU and the nRF24L01 low-power wireless RF chip 。 The system is pided into two parts。 The first part sets nRF24L01 RF chip in send mode, then send the data by controlling the keys in STC89C52RC MCU。 The second part sets nRF24L01 in receive mode waiting for receiving the data sent by the sender。 The data will be displayed on the electronic screen after being received。 Experimental results show that the system can transmit data correctly。 Its capacity of resisting disturbance is strong and it meets the design requirements。

Keywords: single chip microcomputer; wireless; low-power; radio frequency

目录

第一章 绪论 1

1。1  课题研究背景及意义 1

1。2  无线通信系统的现状和分析 2

1。3  几种主流的短距离无线通信技术 3

1。3。1 蓝牙(BLUETOOTH)技术 3

1。3。2 紫蜂(ZIGBEE)技术 4

1。3。3 射频识别(RFID)技术 4

1。4  无线射频技术国内外研究现状 4

1。5 本文内容与结构 6

第二章 硬件设计 7

2。1  硬件的选择 7

2。2  单片机控制部分 8

2。2。1 单片机STC89C52RC的介绍 8

2。3无线射频部分