双目匹配算法

逆变器死区效应分析与补偿方法.: 针对电压源型空间矢量脉宽调制逆变器的死区效应， 提出了一种根据电流矢量判断电流极性的死区补偿方法， 分析了因死区时间、 功率器件导通关断时间引起的误差电压矢量.(Inverter dead time effect analysis and compensation method.: For the voltage source space vector pulse width modulation inverter dead time effect, we propose a judgment based on current polarity current vector deadband compensation method to analyze due to death-time, the power device turn-off time due to the error voltage vector.)

SOCKET SAMPLE TO TRANSFER FILES BY SOCKET

单片机串口接收缓存队列的简单实现，由C语言实现，性能稳定，移植方便可靠！(Microcontroller serial port to receive buffer queue to achieve a simple, achieved by the C language, stable performance, reliable and convenient transplantation! )

ATL开发指南，详细讲解了ATL开发的方方面面(ATL Development Guide, explains in detail all aspects of ATL development)

FMS连接FlashRemoting(附示例源码下载)

使用QWT库实现接收串口数据，并根据串口实时数据画图

[实例简介] 连接sql数据库 类 [核心代码]using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Configuration;using System.Data.SqlClient;using System.Data; namespace Itcast.Cn{ public static class SqlHelper { private static readonly string conStr = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString; //执行增删改的 public static int ExecuteNonQuery(string sql, CommandType cmdType, params SqlParameter[] pms) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } con.Open(); return cmd.ExecuteNonQuery(); } } } //封装一个执行返回单个值的方法 public static object ExecuteScalar(string sql, CommandType cmdType, params SqlParameter[] pms) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } con.Open(); return cmd.ExecuteScalar(); } } } //返回SqlDataReader对象的方法 public static SqlDataReader ExecuteReader(string sql, CommandType cmdType, params SqlParameter[] pms) { SqlConnection con = new SqlConnection(conStr); using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } try { con.Open(); return cmd.ExecuteReader(CommandBehavior.CloseConnection); } catch (Exception) { con.Close(); con.Dispose(); throw; } } } //封装一个返回DataTable的方法 public static DataTable ExecuteDataTable(string sql, CommandType cmdType, params SqlParameter[] pms) { DataTable dt = new DataTable(); using (SqlDataAdapter adapter = new SqlDataAdapter(sql, conStr)) { adapter.SelectCommand.CommandType = cmdType; if (pms != null) { adapter.SelectCommand.Parameters.AddRange(pms); } adapter.Fill(dt); } return dt; } //封装一个带事务的执行Sql语句的方法 public static void ExecuteNonQueryTran(List list) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = con.CreateCommand()) { con.Open(); using (SqlTransaction trans = con.BeginTransaction()) { cmd.Transaction = trans; try { foreach (var SqlObject in list) { cmd.CommandText = SqlObject.Sql; if (SqlObject.Parameters != null) { cmd.Parameters.AddRange(SqlObject.Parameters); } cmd.CommandType = SqlObject.CmdType; cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); } trans.Commit(); } catch (Exception) { trans.Rollback(); } } } } } } public class SqlAndParameter { public string Sql { get; set; } public SqlParameter[] Parameters { get; set; } public CommandType CmdType { get; set; } }}

本代码是单相正弦电压锁相环程序，用于根据单相正弦电压生成其相位角度信息，包括：正交处理、坐标变换、PI运算、积分运算、取模运算等步骤。(This code is a single-phase sinusoidal voltages phase-locked loop program for generating the phase angle information based on single-phase sinusoidal voltage, comprising: an orthogonal processing, coordinate conversion, PI operation, integral operation, the modulo operation and other steps.)

双三次Bezier曲面的绘制，曲面旋转，OPEN GL.C++语言。(Bicubic Bezier surface rendering, surface rotation, OPEN GL.C++ language.)

通过windows API 搜索附近wifi热点，获取每个wifi的相关信息，如信号强度，加密类型等(Search for nearby WiFi hotspots through windows API to get information about each wifi, such as signal strength, encryption type, etc.)