基于电力线载波智能开关研究与开发

发布时间：2019-05-12 10:26

【摘要】：随着科学技术的发展,人民生活水平的不断提高,智能化电气设备已经普及到寻常百姓家庭,给人们的生活带来极大的便利。智能家居融合先进的计算机技术、载波通信技术、无线通信技术、网络技术,将家居生活与智能化设备有机的结合在一起,使人们的生活更加的舒适、高效、便捷。而智能开关是智能家居的核心部件,本课题从家庭的实际需求出发,研究与设计一款基于电力线载波智能开关,能够对家用电器进行远程实时监控。硬件设计方面,选择功能强大、配置齐全、低功耗CMOS集成芯片PL3106作为主控芯片,该单片机内嵌扩频通信调制解调电路,简化了外围电路的设计,降低成本。采用小功率的开关电源作为供电系统,其体积小、转化效率高。继电器开关使用磁保持继电器,其能够在线圈断电情况下保持开关闭合或断开状态,节约电能,提高了系统整体性价比。掉电检测电路能够快速检测电网是否掉电。以便系统在电网掉电时,及时的断开继电器开关,有效的避免家用电器来电时工作造成电能的极大浪费。触摸按键代替传统的机械按键实现终端设备的本位操作、异地操作,美观大方、耐用、方便实用。红外接收功能是终端面板延伸,通过远程红外遥控实现终端的本位操作、异地操作,红外接收模块采用一体化接收探头HS0038,简化硬件设计,降低成本。采用覆盖面广、高效、低成本的电力线载波通信实现终端设备之间的数据传输,构建了一套实时智能开关监控系统,实时显示家用电器工作状态,确保电器安全稳定运行。系统采用了硬件抗干扰措施,提高了抗干扰性能,增强了系统的稳定性。软件编程方面,自主搭建了一个嵌入式实时多任务操作系统,能够根据不同任务的优先级合理安排CPU时间。系统采用模块化的编程思想,模块中无延时、无循环等待、化整为零,通过相应功能函数调度标志来执行相应的功能模块,简化多任务调度,程序结构清晰,无需等待,实时性强。根据系统软硬件的设计,制作了样机;样机在模拟的工作环境下,进行了试验;分析实验数据得出试验结果表明:本课题设计的基于电力线载波智能开关功能达到设计要求,运行稳定可靠且实时性好。
[Abstract]:With the development of science and technology and the continuous improvement of people's living standards, intelligent electrical equipment has been popularized to ordinary people's families, which brings great convenience to people's life. Smart home integrates advanced computer technology, carrier communication technology, wireless communication technology and network technology, which organically combines home life with intelligent equipment to make people's life more comfortable, efficient and convenient. Intelligent switch is the core component of smart home. According to the actual needs of the family, this paper studies and designs a power line carrier intelligent switch, which can monitor household appliances remotely and in real time. In the aspect of hardware design, the powerful function, complete configuration and low power consumption CMOS integrated chip PL3106 are selected as the main control chip. The single chip microcomputer is embedded in the spread spectrum communication modulation and demodulation circuit, which simplifies the design of the peripheral circuit and reduces the cost. The small power switching power supply is used as the power supply system, which has the advantages of small volume and high conversion efficiency. The relay switch uses magnetic holding relay, which can keep the switch closed or disconnected under the condition of coil power outage, save electric energy and improve the overall performance-price ratio of the system. Power-off detection circuit can quickly detect whether the power grid power down. In order to cut off the relay switch in time when the power grid is turned off, the system can effectively avoid the great waste of electric energy caused by the work of household appliances when they call. Touch button instead of traditional mechanical button to realize the standard operation of terminal equipment, remote operation, beautiful and generous, durable, convenient and practical. The infrared receiving function is the extension of the terminal panel. The remote infrared remote control is used to realize the standard operation of the terminal and the remote operation. The infrared receiving module adopts the integrated receiving probe HS0038, to simplify the hardware design and reduce the cost. The power line carrier communication with wide coverage, high efficiency and low cost is used to realize the data transmission between the terminal equipment. A set of real-time intelligent switch monitoring system is constructed to display the working state of household appliances in real time and ensure the safe and stable operation of electrical appliances. The system adopts hardware anti-jamming measures to improve the anti-jamming performance and enhance the stability of the system. In the aspect of software programming, an embedded real-time multitask operating system is built, which can arrange CPU time reasonably according to the priority of different tasks. The system adopts the modular programming idea, there is no delay, no cycle waiting in the module, and it is integrated into zero. the corresponding functional module is executed by the corresponding functional function scheduling mark, which simplifies the multi-task scheduling, and the program structure is clear and does not need to wait. Strong real-time. According to the design of the software and hardware of the system, the prototype is made, and the prototype is tested in the simulated working environment. The experimental results show that the power line carrier intelligent switch designed in this paper meets the design requirements, and the operation is stable and reliable, and the real-time performance is good.
【学位授予单位】：江苏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM564

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