基于LPC2138和蓝牙技术的智能家居系统的设计硕士学位论文曲阜大学.docVIP

硕 士 学 位 论 文 论文题目：基于LPC2138和蓝牙技术的智能家居 系统的设计 摘 要 Abstract With the development of the technology in electronic and communication, the smart home system is coming into people’s life. But the products on the market still have some deficiencies at present, for example, incomplete function, high cost, discommodious to install and safeguard and so on. So the smart home system product isn’t popularized very well. Therefore, the smart home system based on LPC2138 and bluetooth technology has been designed. LPC2138 which Philip Corporation promotes is used for the master control chip in the smart home system. It is a micro-controller which based on a 32/16 bit ARM7TDMI-STM CPU supported Real-Time Emulation and Embedded Track. It supported 32/16 bit code and can supply strong process function. Because of forty-seven GPIO and nine external interrupt in LPC2138, the smart home system can supply many kinds of function. Bluetooth technology is used for organizing the communication network in the house. It is one kind of public short distance wireless connection technology manual. It works in the 2.4GHz ISM (Industry, Science, Medicine) frequency band and has many characteristics, for example, openness, low power consumption. Its trans- mission distance is popularly from 0.1m to 10m, it can reach 100m if amplifying its power. The application of bluetooth module in the smart home system，solve the trouble that the system wouldn’t need wiring in house again when being employed. But the ISM frequency band which bluetooth works in is one kind of global public frequency band (defined 2400 to 2483.5MHz by most countries in the world and it is plotted out to seventy-nine channels and the bandwidth is 1MHz). It is inevitable to come across mutual interference when it is working at one of channels. The project of Frequency Hopping and Forward Error Correction is used for insuring stability of the link. While carrying on hardware circuit design of the smart home s