distance-relay-protection

本项目是基于Cortex-M3 的地沟油快速检测装置，旨在实现“地沟油”快速，现场检测。MCU控制可编程的直接数字频率合成器（DDS）产生正弦激励信号，经过可变增益放大器（VGA）和低通滤波器（LPF）作用于食用油阻抗传感器（实验室制作）信号经过仪器放大器送入微控制器（MCU）的模数转化（ADC）通道，MCU对采集的信号通过快速傅里叶变换（DFT）处理，实现食用油阻抗与相角的检测；USB和以太网接口，可与计算机通讯，以便对采集的数据进行存储和分析。(The project is based on the Cortex-M3 waste oil rapid detection device designed to achieve " waste oil" rapid, on-site testing. MCU control programmable direct digital frequency synthesizer (DDS) generates sinusoidal excitation signal through a variable gain amplifier (VGA) and a low-pass filter (LPF) acting on the oil-impedance sensor (lab produced) to send signals through the instrumentation amplifier into the microcontroller (MCU) modulo conversion (ADC) channels, MCU signal acquisition via Fast Fourier Transform (DFT) processing, oil resistance and phase angle detection USB and Ethernet interfaces, and computer communication, in order to collect data for storage and analysis.)

自己编写12位DACTLV5616驱动程序头文件，验证成功。(I have written 12 DACTLV5616 driver header files, the validation is successful.)

STM32与串口屏通讯，实现简单的交互功能，可作为基础参考程序(STM32 communicates with serial screen, realizes simple interaction function, and can be used as basic reference program.)

Obj tracker for detection. Choosing a set of pixels using the square to complete what is called the object marking and lets you know of the pixels there

本程序是虚拟示波器，可以显示多条曲线波形，调节幅值和时间(Oscilloscope can display multiple curve )

说明：  基于51的温湿度检测，使用HDC1080实现(HDC1080 driver based on C51)

msp430 带字库12864zb的并行显示程序(Parallel with character display program 12864zb)

基于msp430的火焰传感器，数字量输出程序，模块自带二路电压比较器(Msp430-based flame sensor, digital output program, the module comes with a voltage comparator Road)

毕业水温控制论文，基于c51单片机为核心，利用DS18B20检测，蜂鸣器报警，并用数码管来显示，精确度到0.1°。(Graduation thesis temperature control, based on c51 microcontroller core, use DS18B20 detection, alarm buzzer and come with a digital display, accuracy to 0.1.)

本例是用51单片机的键盘解码程序，亲试好用(This case is a keyboard with 51 decoding process, pro-test handy)