基于Android和GSM技术的智能家居语音遥控系统设计与实现

发布时间：2018-02-23 00:41

本文关键词： 物联网智能家居远程遥控 Android GSM DTMF 嵌入式系统　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：物联网是通过射频识别、激光扫描器、全球定位系统、红外感应器等多种传感设备，按照约定好的协议，将物品与互联网连接起来，进行信息交换和通讯，从而实现智能化识别、定位、跟踪、监控和管理的一种网络。物联网的进一步发展为智能家居提供了更多的保障和发展空间，可以认为智能家居是物联网应用的最重要的体现。为了更好的满足家庭智能化要求，本文提出了一种基于Android手机和GSM技术的语音遥控家用设备的方法，为整个智能家居系统化、多样化提供更多选择。本系统采用Android平台开发上位机的发送端软件和接收端软件，发送端软件可以通过GSM技术拨通接收端手机的号码，接收端软件监听手机状态，当手机有来电时，通过查询数据库，判断与存储的号码是否一致，自动选择是否接听发送端手机的呼叫，发送端通过按键发送不同的DTMF音频信号，接收端接收后并打开扬声器播放该DTMF音频。系统的下位机开发是在单片机STC89C52的基础上进行开发的，下位机通过麦克接收上位机播放的DTMF音频，，采用LM386芯片将音频信号放大，用MT8880芯片来进行音频的识别解码，并分析出按键码值。然后将解析的码值交给嵌入式开发平台显示，并转发给执行模块来完成智能家居家用设备的控制。经过测试，Android软件之间通信良好，接收端软件的自动接听能够在不同Android系统版本上相互兼容，由于条件有限，在此只测试了5部手机，完全可以实现自动接听。下位机通过多次测试也能准确、稳定地控制家用设备。结果表明，该系统能够实现预期功能，具有较高的实用价值。
[Abstract]:The Internet of things is a variety of sensor devices, such as radio frequency identification, laser scanner, global positioning system, infrared sensor and so on. According to the agreed protocol, goods are connected to the Internet for information exchange and communication. The further development of the Internet of things provides more protection and development space for the intelligent home. It can be considered that smart home is the most important embodiment of the Internet of things application. In order to better meet the intelligent requirements of the home, this paper proposes a method of voice remote control home equipment based on Android mobile phone and GSM technology, which is systematized for the whole smart home. Diversification offers more options. This system uses Android platform to develop the software of the transmitter and receiver of the host computer. The software of the transmitter can dial the number of the mobile phone through the GSM technology. The software of the receiver monitors the status of the mobile phone, and when the phone calls, the software can monitor the status of the mobile phone. By querying the database, we can judge whether the number is the same as the stored number, and choose automatically whether to answer the call of the mobile phone at the sending end. The sender sends different DTMF audio signals by keystrokes, and then the receiver receives the DTMF audio and opens the speaker to play the DTMF audio. The development of the system is based on the single-chip computer STC89C52. The lower computer receives the DTMF audio from the host computer through the Mac, uses the LM386 chip to amplify the audio signal, and uses the MT8880 chip to recognize and decode the audio. The key code value is analyzed, and then the analyzed code value is given to the embedded development platform for display and forwarded to the executive module to complete the control of the home device of the smart home. After testing, the communication between Android software is good, the automatic answering of receiver software can be compatible with each other in different Android system versions. Because of the limited conditions, only 5 mobile phones have been tested here. The lower computer can control the household equipment accurately and stably through many tests. The result shows that the system can realize the expected function and has high practical value.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP391.44;TN929.5;TU855

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