danpianji

　　　锅炉是工业过程中不可缺少的动力设备，为确保安全，稳定生产，对锅炉的自动控制十分重要。汽包水位是锅炉运行的主要指标，汽包水位过高过低都会影响运行的安全与经济性，必须严格加以控制。本文主要是用MATLAB对锅炉汽包水位控制系统进行仿真研究。建立了锅炉汽包水位对象的数学模型和控制系统，并用Matlab语言在计算机上编制锅炉汽包水位控制系统的仿真程序。通过对象特性、最佳PID参数整定、控制系统比较分析，了解了汽包水位对象特性、整定出了最佳PID参数、总结出了各种控制方案的特点与适用场合。 (　　　Boiler is a necessary power plant in the process of industry. In order to ensure the production and security, the auto-control of it is very important. The drum water level is an important variable to be controlled, it is hard to get the mathematic model of the water level with adjustive process, it is characteristic of nonlinearity, instability and time lag. The traditional control mode of three-variable in the drum water level mostly use PID.The problem of automatic control in industry coal-fired boiler is discussed in this thesis. First of all，the technological process and characteristics of industry boiler is analyzed. The task of boiler regulator is expounded. And then the system scheme of control is presented. The dynamic characteristic of loops for water level is analyzed especially the reason of ostensible water level. On the basis of these a routine PID controller is designed to control the water level. The part of differential is sensitive to high frequency noise, and easi)

信号与系统；仿真；MATLAB；例子；实验；(Signal and system; simulation; MATLAB; example)

24位高精度模数转换器ADS1258的原理及应用 用例子讲解如何使用以及要注意的问题(ADC ADS1258 24-bit high-precision application of the principle and explain with examples how to use and pay attention to the problem)

说明：  基于labview的gps定位，可以拿去用，都很完整(GPS positioning based on labview, can be used, are complete)

12F629开发的中控锁,可以控制两个继电器.带学习功能(Lock 12F629 developed to control the two relays. With learning function)

基于zigbee技术CC2530 开发采集大气压(Development and Collection of Atmospheric Pressure Based on Zigbee Technology CC2530)

PT2262是一款功能强大的单片机，我所上传的是芯片的资料，希望能对大家有所帮助(PT2262 is a powerful microcontroller, is the chip I have uploaded the information, hoping to be helpful)

LPC1788工程模板，SmartCortex M3-1788(LPC1788 project ,Ucos, SmartCortex M3-1788)

keil project for application for read ads1232 read and Displat 7-segment led

迪文开发实例包括双路adc DMA采样，多任务操作，串口接收(Diwen development examples include dual-channel adc DMA sampling, multi-tasking operation, serial port reception)