基于AT89C2051单片机遥控系统的设计.doc

毕业设计(论文)--基于AT89C2051单片机遥控系统的设计
毕业设计
遥控系统的设计
The design of remote system
摘要
随着科学技术的飞速发展信息的飞快传播红外遥控在人们的生活中已经成为不可或缺的部分本文重点介绍了利用单片机AT89C51和AT89C2051实现红外发射和接收电路的设计方法发射电路采用单片机89C2051将待发送的二进制信号编码调制为40KHz的脉冲信号通过红外发射管发射红外信号红外接收端采用一体化红外接收头HS0038接收红外接收信号它同时对信号进行放大检波整形得到TTL电平的编码信号再送给单片机经单片机解码实现对不同设备的控制整个电路耗电省简单可靠操作灵活性能价格比高较好地满足了现代生活生产和科研的需要广泛应用在家用电器安全保卫及人们的日常生活中ABSTRACT
With the rapid development of technology the rapid dissemination of information means that infrared control has e an ponent in peoples life The article highlighted the design method of transmitting and receiving circuit by infrared control which use single-chip puter AT89C51 and AT89C2051 The emission circuit concocts the binary system signal coding which is prepared to send with the signle-chip puter 89C2051Then the pulse signal uses infrared emission diode to send the infrared signal The infrared signal is received by the integrative infrared receiving HS0038 At the same time the signal is magnified and plasticed to get the TTL coding signal sending to the signle-chip puter After that the signle-chip puter decodes the signal to control different equipments The entire circuit is simple reliable flexible operationhigh-performance of high value and low cost and it can meet the modern life production and research need The infrared remote system is abroad used in the wirings security ward and people daily life For emample it can be used to remote control TV raido and air-condition Also used in security alarm auto door and so on
Key WordsRemote controlling circuitInfrared emissionInfrared receivingSingle-chip puter
目录
1 引言 1
2 方案论证与发展趋势 3
21方案论证 3
22技术指标 6
23红外遥控系统的发展趋势 6
3 红外遥控系统的硬件设计 8
31 红外收发电路的设计 8
com绍 8
com射电路 12
com收电路 12
32 直流稳压电源的设计 13
com式整流电路 13
com 滤波电路 14
com 稳压电路 15
33 控制部分的设计 15
com 可控硅原理 15
com 光耦原理与作用 18
4 红外遥控系统的软件设计 20
41系统功能实现办法 20
com的编码格式 20
com的发射 20
com的接收处理 20
42遥控发射及接收控制流程图 21
com射部分 21
com收部分 22
43软件设计 25
com码的软件设计 25
com码的软件设计 26
5 调试 27
结论 30
参考