调频广播发射机控制器硬件系统设计.doc

四川大学本科毕业设计 调频广播发射机控制器硬件系统设计 PAGE PAGE ii 四川大学本科毕业设计 调频广播发射机控制器硬件系统设计 调频广播发射机控制器硬件系统设计 专业：机械设计制造及其自动化 学生： 指导教师：韩 震 宇 摘要 广播发射机微机控制器是广播发射机的自动化监管设备。它负责定时开关发射机；系统运行时采集数据；判断故障并在故障 时给出报警。嵌入式微控制器在广播发射机领域的应用已从基本的监控功能向更丰富的管理功能发展。应用的复杂性决定了设计的复杂性，如何管理设计的复杂性并体现设计的规范性对设计人员提出了挑战。 系统设计中以用例为驱动进行需求分析，设计了体现需求的用例视图。硬件设计中采用基于AVR单片机的多微控制器系统体系结构。并在硬件电路设计部分设计了满足系统功能的接口电路。根据以上的功能要求，将微机控制器划分为主控模块、数据采集模块、人机接口模块和输出动作模块四部分。人机接口模块采用了当前比较流行的大屏幕液晶显示技术，和键盘结合后，具有极佳的可操作性，效果接近于通用计算机。最后，为了提高微机控制器的抗干扰性能，结合当前单片机抗干扰设计的研究成果，对系统的电路进行了专门的抗干扰设计。如在模拟量输入通道加入滤波电路，在开关量输入通道加入光电隔离电路，以及特殊的电路板设计等。 关键词：广播发射机，单片机, 微机控制器，AVR THE DESIGN OF THE FM RADIO TRANSMITTER CONTROLLER HANDWARE SYSTEM Major: Mechanic design manufacture and automation Author: Wang Chuansong Tutor: Han Zhenyu ABSTRACT Broadcast transmitter controller is a set of automatic monitor and control equipment for broadcast transmitter.It can switch the transmitter on time,sample the data while it is running,judge fault and trigger the alarm.The application of embedded micro-controller in the field of broadcast transmitter is prone to focus on plenty of management function other than the basic monitor and control mission as before.The complexity of application decides the complexity of design.It is a challenge that how to manage the complexity of design and make it obey to unified criterion. In the stage of system design,I apply use case-driven for require analysis and design.In the stage of hardware design,I design the AVR-based multi-controller architecture and complete the interface circuit design to meet the requirement. According to the former function demand, the micro-controller is formed by main control module, power sample module, operator and machine interface module and output action module. The operator and machine interface module has taken the popular large-screen LCD skill, which is combined with the keyboard. After that, the micro-controller‘