基于DSP的远程温度监测系统设计.doc

毕业设计说明书 基于DSP的远程温度监测系统设计 专业 自动化 学生姓名 蔡 伟 班级 B自动化074 学号 0710603401 指导教师 冯俊青 完成日期 2011年5月25日  基于DSP的远程温度监测系统设计 本文介绍了一种基于DSP处理器的温度监测系统设计方案。该监测系统是以TMS320F2812芯片为核心，在硬件设计的基础上，借助Protel 软件开发系统完成了系统的软件设计，在 PC机上采用温度监控软件，通过串口通信实时监测系统的温度，充分利用了DSP2812的强大运算能力，用DSP进行FFT运算，实现了跟踪测量输入信号的频率。根据实际频率计算采样周期的算法，在不增加硬件投资的条件下解决了同步采样的问题。这种软件锁相的改进方法，实现简便，实时性较高，计算工作量小。实验结果表明该监测和传输系统的硬件结构简单，测量精度高，具有较高的智能化程度，能够实现远距监测。 实践结果表明，该系统使用效果良好，有着广泛的应用前景。 温度传感器；串行通信；远程控制；DSP  Based on DSP remote temperature monitoring system design AbstractTMS320F2812 digital signal processor is TI company latest 32-bit fixed-point DSP controller, is now control one of the most cash processor field. The high frequency 150MHz, greatly improving the control system control precision and chip processing ability. Based on TMS320F2812 C/C + + efficient 32-bit TMS320C28x DSP core, and to provide the floating-point mathematical function library, which can be in the realization of fixed-point CPU convenient floating-point operation. In the accuracy servo control, inverter power supply, UPS power supply etc widely used, simultaneously is the motor digital control product upgrades the best choice. Introduces a method based on DSP microprocessor temperature monitoring system design scheme. This monitoring system for the core, take TMS320F2812 chips on the basis of the hardware design, with the help of Protel software development system to accomplish the system software design, in PC using temperature monitoring software, through serial communication with the temperature of the real time monitoring system, made full use of powerful operation ability, DSP2812 with DSP on FFT calculations, to realize the input signal tracking measurement of frequency. According to the actual frequency calculation algorithm of sampling period, without any increase in hardware investment conditions the problem solved synchronous sampling. This software phase lock improvement method and achieved high, simple, real-time computing workload is small