C#监控设备(PLC)状态仿真模拟器
2024-05-10 06:28:49
C#监控设备状态（如PLC），并记录到本地sqlite数据库中。
本文只是一个【设备状态仿真模拟器】
新建winform应用程序DeviceStatusDemo，选择.net framework 4.5.将默认的Form1重命名为FormDeviceStatus。
添加对System.Data.SQLite.dll的引用
窗体FormDeviceStatus设计如下
一、添加日志处理类Context,Context.cs源程序：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.IO;
using System.Threading;namespace DeviceStatusDemo
{/// <summary>/// 上下文实例类/// </summary>public static class Context{/// <summary>/// 显示普通日志/// </summary>public static event Action<string> EventInfoLog;/// <summary>/// 显示错误信息/// </summary>public static event Action<string, Exception> EventErrorLog;/// <summary>/// 显示错误日志/// </summary>/// <param name="strErrorMsg">错误信息</param>/// <param name="ex">异常对象</param>public static void ShowError(string strErrorMsg, Exception ex = null){if (strErrorMsg == "" || strErrorMsg == null){return;}EventErrorLog?.BeginInvoke(strErrorMsg, ex, null, null);}/// <summary>/// 显示日志信息/// </summary>/// <param name="strErrorMsg"></param>public static void ShowInfo(string strErrorMsg){EventInfoLog?.BeginInvoke(strErrorMsg, null, null);}}
}
二、新建 设备状态数据类DeviceStatusData，同时定义设备状态枚举 DeviceStatus，读取设备状态枚举的描述信息。DeviceStatusData.cs源程序如下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;namespace DeviceStatusDemo
{/// <summary>/// 设备状态数据类：待料、堵料、自动、手动、故障/// </summary>public class DeviceStatusData{/// <summary>/// 日期，格式: yyyy-MM-dd/// </summary>public string RecordDate { get; set; }/// <summary>/// 班次：白班、夜班/// </summary>public string RecordShift { get; set; }/// <summary>/// 当前设备状态【待料、堵料、自动、手动、故障】中的某一个枚举/// </summary>public string DeviceStatus { get; set; }/// <summary>/// 设备状态代码/// </summary>public short DeviceStatusCode { get; set; }/// <summary>/// 开始时间/// </summary>public DateTime BeginTime { get; set; }/// <summary>/// 结束时间/// </summary>public DateTime EndTime { get; set; }/// <summary>/// 状态保持时间(s)/// </summary>public double Duration { get; set; }/// <summary>/// 设备工位：如 密封钉A工作台、顶盖焊B工作台/// </summary>public string DevicePosition { get; set; }/// <summary>/// 记录设备状态描述信息，比如：设备状态由【自动】切换到【待料】/// </summary>public string DeviceStatusMessage { get; set; }}/// <summary>/// 设备状态枚举/// </summary>public enum DeviceStatus : short{/// <summary>/// 自动/// </summary>[Description("自动")]Auto = 1,/// <summary>/// 手动/// </summary>[Description("手动")]Manual = 2,/// <summary>/// 待料/// </summary>[Description("待料")]WaitingForMaterial = 3,/// <summary>/// 堵料/// </summary>[Description("堵料")]Blocking = 4,/// <summary>/// 故障/// </summary>[Description("故障")]Fault = 5}public static class Util{/// <summary>/// 根据枚举值得到枚举中文信息/// </summary>/// <param name="enumType">一种枚举类型</param>/// <param name="value"></param>/// <returns></returns>public static string GetEnumDescription(this Type enumType, int? value){//如果不是枚举类型，直接返回if (!enumType.IsEnum){return value == null ? "" : value.ToString();}FieldInfo[] fields = enumType.GetFields();//不考虑枚举默认的第一个元素for (int i = 1, count = fields.Length; i < count; i++){if (Convert.ToInt32(Enum.Parse(enumType, fields[i].Name)) == value){DescriptionAttribute[] enumAttributes = (DescriptionAttribute[])fields[i].GetCustomAttributes(typeof(DescriptionAttribute), false);if (enumAttributes.Length > 0){return enumAttributes[0].Description;}}}return value == null ? "" : value.ToString();}}
}
三、新建sqlite数据库操作类SqliteDbHelper，SqliteDbHelper.cs源程序:
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Data.SQLite;
using System.Linq;
using System.Text;namespace DeviceStatusDemo
{/// <summary>/// 功能：sqlite数据库操作类/// </summary>public class SqliteDbHelper{static object ObjLock = new object();/// <summary>/// 连接字符串/// </summary>private string m_strConnectString = string.Empty;/// <summary> /// 构造函数 /// </summary> /// <param name="strDbPath">SQLite数据库文件路径</param> public SqliteDbHelper(string strDbPath){this.m_strConnectString = "Data Source=" + strDbPath + ";Pooling=true;FailIfMissing=false;Journal Mode=WAL";}/// <summary> /// 创建SQLite数据库文件 /// </summary> /// <param name="strDbPath">要创建的SQLite数据库文件路径</param> /// <param name="strdbTableCreateString">要创建的SQLite数据库表格</param> public static void CreateDB(string strDbPath, string strdbTableCreateString){using (SQLiteConnection connection = new SQLiteConnection("Data Source=" + strDbPath)){connection.Open();using (SQLiteCommand command = new SQLiteCommand(connection)){command.CommandText = strdbTableCreateString;command.ExecuteNonQuery();}}}/// <summary> /// 对SQLite数据库执行增删改操作，返回受影响的行数。 /// </summary> /// <param name="strSql">要执行的增删改的SQL语句</param> /// <param name="parameters">执行增删改语句所需要的参数，参数必须以它们在SQL语句中的顺序为准</param> /// <returns>返回受影响的行数</returns> public int ExecuteNonQuery(string strSql, SQLiteParameter[] parameters){try{int intAffectedRows = 0;using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){connection.Open();lock (ObjLock){using (DbTransaction transaction = connection.BeginTransaction()){using (SQLiteCommand command = new SQLiteCommand(connection)){command.CommandText = strSql;if (parameters != null){command.Parameters.AddRange(parameters);}intAffectedRows = command.ExecuteNonQuery();}transaction.Commit();}}}return intAffectedRows;}catch (Exception ex){Context.ShowError("执行sql语句异常，" + ex.Message + "\r\n详细sql语句为：" + strSql, ex);return -1;}}public int ExecuteNonQueryByDict(string strSql, Dictionary<string, object> dicParams){try{int intAffectedRows = 0;using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){connection.Open();lock (ObjLock){using (DbTransaction transaction = connection.BeginTransaction()){using (SQLiteCommand command = new SQLiteCommand(connection)){command.CommandText = strSql;if (dicParams != null && dicParams.Count > 0){command.Parameters.Clear();foreach (string parameterName in dicParams.Keys){command.Parameters.AddWithValue(parameterName, dicParams[parameterName]);}}intAffectedRows = command.ExecuteNonQuery();}transaction.Commit();}}}return intAffectedRows;}catch (Exception ex){Context.ShowError("执行sql语句异常，" + ex.Message + "\r\n详细sql语句为：" + strSql, ex);return -1;}}/// <summary> /// 执行一个查询语句，返回一个关联的SQLiteDataReader实例 /// </summary> /// <param name="strSql">要执行的查询语句</param> /// <param name="parameters">执行SQL查询语句所需要的参数，参数必须以它们在SQL语句中的顺序为准</param> /// <returns>返回SQLiteDataReader</returns> public SQLiteDataReader ExecuteReader(string strSql, SQLiteParameter[] parameters){SQLiteConnection connection = new SQLiteConnection(m_strConnectString);SQLiteCommand command = new SQLiteCommand(strSql, connection);if (parameters != null){command.Parameters.AddRange(parameters);}connection.Open();return command.ExecuteReader(CommandBehavior.CloseConnection);}/// <summary> /// 执行一个查询语句，返回一个包含查询结果的DataTable /// </summary> /// <param name="strSql">要执行的查询语句</param> /// <param name="parameters">执行SQL查询语句所需要的参数，参数必须以它们在SQL语句中的顺序为准</param> /// <returns>返回数据表</returns> public DataTable ExecuteDataTable(string strSql, SQLiteParameter[] parameters){using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){using (SQLiteCommand command = new SQLiteCommand(strSql, connection)){if (parameters != null){command.Parameters.AddRange(parameters);}SQLiteDataAdapter adapter = new SQLiteDataAdapter(command);DataTable data = new DataTable();lock (ObjLock){adapter.Fill(data);}return data;}}}public DataTable GetDataTable(string strSql, Dictionary<string, object> dicParams){using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){using (SQLiteCommand command = new SQLiteCommand(strSql, connection)){if (dicParams != null && dicParams.Count > 0){command.Parameters.Clear();foreach (string parameterName in dicParams.Keys){command.Parameters.AddWithValue(parameterName, dicParams[parameterName]);}}SQLiteDataAdapter adapter = new SQLiteDataAdapter(command);DataTable data = new DataTable();lock (ObjLock){adapter.Fill(data);}return data;}}}public DataSet ExcuteDataSet(string strSql){DataSet ds = new DataSet("MyDataSet");using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){using (SQLiteCommand command = new SQLiteCommand(strSql, connection)){SQLiteDataAdapter adapter = new SQLiteDataAdapter(command);lock (ObjLock){adapter.Fill(ds);}return ds;}}}/// <summary> /// 执行一个查询语句，返回查询结果的第一行第一列 /// </summary> /// <param name="strSql">要执行的查询语句</param> /// <returns>返回第一行第一列的值</returns> public object ExecuteScalar(string strSql){try{using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){connection.Open();lock (ObjLock){using (SQLiteCommand command = new SQLiteCommand(strSql, connection)){return command.ExecuteScalar();}}}}catch{throw;}}public int ExecuteScalarInt(string strSql){object oRes = ExecuteScalar(strSql);return oRes == null ? 0 : Convert.ToInt32(oRes);}/// <summary> /// 查询数据库中的所有数据类型信息 /// </summary> /// <returns>返回数据表</returns> public DataTable GetSchema(){using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){connection.Open();DataTable data = connection.GetSchema("TABLES");connection.Close();return data;}}public bool DatabaseBetter(){try{lock (ObjLock){using (SQLiteConnection connection = new SQLiteConnection(m_strConnectString)){connection.Open();using (SQLiteCommand command = new SQLiteCommand(connection)){command.CommandText = "VACUUM";command.ExecuteNonQuery();}}}return true;}catch (Exception ex){Context.ShowError("使用[VACUUM]命令优化数据库异常 ，详情：" + ex.Message);return false;}}}
}
四、新建用于操作数据库的静态类Env，Env.cs源程序
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data;
using System.IO;namespace DeviceStatusDemo
{/// <summary>/// 应用程序级别的单例类/// </summary>public static class Env{static Env(){//增加sqlite数据库操作对象string strSqliteConnStr = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "deviceStatusDemo.db");SqliteDb = new SqliteDbHelper(strSqliteConnStr);}/// <summary>/// Sqlite数据库操作类对象/// </summary>public static SqliteDbHelper SqliteDb { get; set; }/// <summary>/// 创建数据库/// </summary>public static void EnsureDataBaseTables(){string strFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "deviceStatusDemo.db");if (!File.Exists(strFile)){System.Data.SQLite.SQLiteConnection.CreateFile(strFile);}string strSql = @"
--创建设备状态记录表
CREATE TABLE IF NOT EXISTS
Hans_DeviceStatus
(Id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,RecordDate TEXT,RecordShift TEXT,DeviceStatus TEXT,DeviceStatusCode INTEGER,BeginTime TEXT,EndTime TEXT,Duration TEXT,DevicePosition TEXT,DeviceStatusMessage TEXT
);";SqliteDb.ExecuteNonQueryByDict(strSql, null);}}
}
五、关键操作设备状态改变的类DeviceStatusUtil.DeviceStatusUtil.cs源程序如下
using System;
using System.Collections.Generic;
using System.Data.SQLite;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace DeviceStatusDemo
{/// <summary>/// 设备状态改变处理/// </summary>public class DeviceStatusUtil{/// <summary>/// 触发设备状态改变事件/// 第一个参数：当前设备状态/// 第二个参数：上次的设备状态/// 第三个参数：班次/// </summary>public static event Action<short, short, string> EventDeviceStatusChanged;/// <summary>/// 比较设备状态是否已改变/// </summary>/// <param name="buffer">当前设备状态</param>/// <param name="bufferLast">上次的设备状态</param>/// <returns></returns>public static bool CompareStatusChanged(short buffer, short bufferLast){DateTime dtNow = DateTime.Now;string recordShift = GetShiftNormal(dtNow);//是否已改变if (bufferLast != -1 && buffer != bufferLast){//触发设备状态改变事件EventDeviceStatusChanged?.Invoke(buffer, bufferLast, recordShift);return true;}return false;}/// <summary>/// 获得正常情况下的班次/// 【8点~20点是白班】/// </summary>/// <returns></returns>public static string GetShiftNormal(DateTime dtNow){DateTime dtFrom = new DateTime(dtNow.Year, dtNow.Month, dtNow.Day, 8, 0, 0);DateTime dtTo = new DateTime(dtNow.Year, dtNow.Month, dtNow.Day, 20, 0, 0);//8点~20点之间为白班if (dtNow >= dtFrom && dtNow < dtTo){return "白班";}return "夜班";}/// <summary>/// 获取上一次设备状态的记录开始时间/// </summary>/// <returns></returns>public static DateTime GetLastRecordTime(){object objResult = Env.SqliteDb.ExecuteScalar("select BeginTime from Hans_DeviceStatus where Id in (select max(Id) from Hans_DeviceStatus)");if (objResult == null || string.IsNullOrWhiteSpace(objResult.ToString())){return DateTime.Now;}return DateTime.Parse(objResult.ToString());}/// <summary>/// 获取最后一次的设备状态代码/// </summary>/// <returns></returns>public static short GetLastDeviceStatusCode(){object objResult = Env.SqliteDb.ExecuteScalar("select DeviceStatusCode from Hans_DeviceStatus where Id in (select max(Id) from Hans_DeviceStatus)");if (objResult == null || string.IsNullOrWhiteSpace(objResult.ToString())){return -1;}return Convert.ToInt16(objResult);}/// <summary>/// 保存设备状态改变到数据库/// 【类似于工作流的A环节 送出到 B环节】/// 先更新上一条数据的结束时间为Now，持续时间，然后增加一条开始时间为Now，结束时间、持续时间为空的记录/// </summary>/// <param name="data"></param>/// <returns></returns>public static int SaveDeviceStatus(DeviceStatusData data){Dictionary<string, object> dict = new Dictionary<string, object>();dict.Add("RecordDate", data.RecordDate);dict.Add("RecordShift", data.RecordShift);dict.Add("DeviceStatus", data.DeviceStatus);dict.Add("DeviceStatusCode", data.DeviceStatusCode);dict.Add("BeginTime", data.BeginTime.ToString("yyyy-MM-dd HH:mm:ss"));dict.Add("EndTime", data.EndTime.ToString("yyyy-MM-dd HH:mm:ss"));dict.Add("Duration", data.Duration.ToString("N2"));dict.Add("DevicePosition", data.DevicePosition);dict.Add("DeviceStatusMessage", data.DeviceStatusMessage);SQLiteParameter[] parameters = new SQLiteParameter[dict.Count];for (int i = 0; i < dict.Count; i++){KeyValuePair<string, object> keyValue = dict.ElementAt(i);parameters[i] = new SQLiteParameter(keyValue.Key, keyValue.Value);}string sql = @"
update Hans_DeviceStatus set EndTime=@EndTime,Duration=@Duration,DeviceStatusMessage=@DeviceStatusMessage where Id in (select max(Id) from Hans_DeviceStatus);
insert into Hans_DeviceStatus (RecordDate,RecordShift,DeviceStatus,DeviceStatusCode,BeginTime,EndTime,Duration,DevicePosition,DeviceStatusMessage) values (@RecordDate,@RecordShift,@DeviceStatus,@DeviceStatusCode,@BeginTime,'','',@DevicePosition,'')";int affectRow = Env.SqliteDb.ExecuteNonQuery(sql, parameters);return affectRow;}}
}
六、设备操作仿真类PlcOperateUtil，PlcOperateUtil.cs源程序
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace DeviceStatusDemo
{/// <summary>/// PLC操作类/// 该类只是仿真，实际使用需要读写PLC的相关地址/// </summary>public class PlcOperateUtil{/// <summary>/// 读取PLC指定地址的值，/// 这里只是一个模拟器/// </summary>/// <param name="address"></param>/// <returns></returns>public static short ReadInt16(string address){return (short)new Random().Next(1, 6);}}
}
七、窗体FormDeviceStatus的相关主要程序如下（忽略设计器自动生成的部分类代码）：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;namespace DeviceStatusDemo
{public partial class FormDeviceStatus : Form{/// <summary>/// 是否在运行中/// </summary>public bool IsRunning { get; set; }/// <summary>/// 上一次的设备状态 /// </summary>static short bufferLastStatus = -1;public FormDeviceStatus(){InitializeComponent();Env.EnsureDataBaseTables();Context.EventErrorLog += Context_EventErrorLog;Context.EventInfoLog += Context_EventInfoLog;}private void Context_EventInfoLog(string message){DisplayMessage(message);}private void Context_EventErrorLog(string message, Exception ex){DisplayMessage($"{message}\n{(ex == null ? "" : ex.Message)}");}/// <summary>/// 设备状态更改事件/// </summary>/// <param name="currentDeviceStatus">当前设备状态</param>/// <param name="lastDeviceStatus">上次设备状态</param>private void DeviceStatusUtil_EventDeviceStatusChanged(short currentDeviceStatus, short lastDeviceStatus, string recordShift){//当前设备状态描述、上次设备状态描述string currentStatusDesc = typeof(DeviceStatus).GetEnumDescription(currentDeviceStatus);string lastStatusDesc = typeof(DeviceStatus).GetEnumDescription(lastDeviceStatus);DateTime dtLastTime = DeviceStatusUtil.GetLastRecordTime();DateTime dtNow = DateTime.Now;DeviceStatusData data = new DeviceStatusData();data.RecordDate = dtNow.ToString("yyyy-MM-dd");data.RecordShift = recordShift;data.DeviceStatus = currentStatusDesc;data.DeviceStatusCode = currentDeviceStatus;data.BeginTime = dtNow;//当前开始时间data.EndTime = dtNow;//上一次的结束时间data.Duration = dtNow.Subtract(dtLastTime).TotalSeconds;data.DevicePosition = "XX焊接工作台";data.DeviceStatusMessage = $"设备状态【{lastStatusDesc}】持续了【{data.Duration.ToString("N2")}】秒.设备状态已由【{lastDeviceStatus}-{lastStatusDesc}】切换到【{currentDeviceStatus}-{currentStatusDesc}】";Context.ShowInfo(data.DeviceStatusMessage);DeviceStatusUtil.SaveDeviceStatus(data);}/// <summary>/// 启用监控设备状态/// </summary>private void StartMonitor(){//从数据库读取最后一次的设备状态代码bufferLastStatus = DeviceStatusUtil.GetLastDeviceStatusCode();//绑定设备状态更改事件DeviceStatusUtil.EventDeviceStatusChanged -= DeviceStatusUtil_EventDeviceStatusChanged;DeviceStatusUtil.EventDeviceStatusChanged += DeviceStatusUtil_EventDeviceStatusChanged;IsRunning = true;Task.Factory.StartNew(() =>{while (IsRunning){try{#region 设备状态保存日志//读取设备状态short currentDeviceStatus = PlcOperateUtil.ReadInt16("DB500.10");RefreshDeviceStatus(currentDeviceStatus);bool isStatisticFlag = DeviceStatusUtil.CompareStatusChanged(currentDeviceStatus, bufferLastStatus);if (isStatisticFlag){if (bufferLastStatus != -1 && bufferLastStatus != currentDeviceStatus){Context.ShowInfo($"设备状态已变更，由【{bufferLastStatus}】转变为【{currentDeviceStatus}】");}}bufferLastStatus = currentDeviceStatus;#endregion}catch (Exception ex){Context.ShowError("与PLC交互出现异常，" + ex.Message, null);break;}finally{Thread.Sleep(2000);}}});}/// <summary>/// 停止监控/// </summary>public void StopMonitor(){IsRunning = false;//解除绑定设备状态更改事件 DeviceStatusUtil.EventDeviceStatusChanged -= DeviceStatusUtil_EventDeviceStatusChanged;}/// <summary>/// 显示富文本框的消息/// </summary>/// <param name="message"></param>private void DisplayMessage(string message){this.BeginInvoke(new Action(() =>{if (rtxtDisplay.TextLength >= 10240){rtxtDisplay.Clear();}rtxtDisplay.AppendText($"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff")} --> {message}\n");rtxtDisplay.ScrollToCaret();}));}/// <summary>/// 刷新设备状态/// </summary>/// <param name="deviceStatusDesc"></param>/// <param name="color"></param>private void RefreshDeviceStatus(short currentDeviceStatus){string currentStatusDesc = typeof(DeviceStatus).GetEnumDescription(currentDeviceStatus);Color color = Color.Green;switch (currentDeviceStatus){case 1:case 3:color = Color.Green;break;case 2:color = Color.Yellow;break;default:color = Color.Red;break;}this.BeginInvoke(new Action(() =>{lblStatus.Text = currentStatusDesc;lblStatus.BackColor = color;}));}private void FormDeviceStatus_Load(object sender, EventArgs e){btnStartMonitor.Enabled = true;btnStopMonitor.Enabled = false;}private void btnStartMonitor_Click(object sender, EventArgs e){btnStartMonitor.Enabled = false;btnStopMonitor.Enabled = true;Context.ShowInfo("启动监控设备状态...");StartMonitor();}private void btnStopMonitor_Click(object sender, EventArgs e){btnStartMonitor.Enabled = true;btnStopMonitor.Enabled = false;Context.ShowInfo("停止监控设备状态...");StopMonitor();}}
}
八、仿真程序运行如图：
C#监控设备(PLC)状态仿真模拟器相关推荐
- Android 优化电池使用时间——确定和监控基座对接状态和类型
原文参见此处 确定和监控基座对接状态和类型 Android 设备支持几种不同类型的基座.这些类型包括车载或家用基座以及数字和模拟基座.许多基座可用于为插入的设备充电,因此基座状态通常与充电状态紧密相关 ...
- vspy如何在图形面板显示报文_设备实时状态监控：如何进行工业生产设备数据采集？...
设备实时状态监控:如何进行工业生产设备数据采集?数据采集(DAQ),是指从传感器和其它待测设备等模拟和数字被测单元中自动采集非电量或者电量信号,送到上位机中进行分析,处理. 慧都设备数据采集系统解决方 ...
- 三菱FX5U PLC远程调试监控设备方案
长沙某公司因近期几套设备(控制器为三菱FX5U)需要出到其他省份及国外,售后部门人员安排紧张不能协调前往调试,需寻找可对设备进行远程调试及监控的产品方便售后在任何有网络地方即可实现远程调试,经过多方咨 ...
- 轻松实现远程监控三菱PLC
前言:三菱PLC广泛应于工业控制领域,是一款性能高.稳定性强的PLC设备.此文档将介绍如何使用EG系列网关通过串口连接三菱PLC,并添加到EMCP物联网云平台,实现电脑Web页面.手机APP和微信对三 ...
- 开源夏令营《基于HackRF开发GPS信号仿真模拟器》开题报告
基于HackRF开发GPS信号仿真模拟器 1. 研究意义 随着GPS卫星导航定位系统在现在社会得到越来越广泛的应用,一个能够定量评估.可以模拟不同环境.并具有足够精度的卫星信号仿真模拟器为GPS终端设 ...
- 如何实现tm同时监控多个状态的改变_广电机房监控系统【斯必得智慧机房】
广电机房监控系统是根据广电的业务需求研发的,广电机房动力环境监控系统需要检测的机房分部多.大小不一.而且广电的机房是集中监控所以有一套机房监控系统是尤为的重要. 广电机房监控系统功能 1.实时监控数据 ...
- 使用Zabbix的SNMP trap监控类型监控设备的一个例子
转载来源 :使用Zabbix的SNMP trap监控类型监控设备的一个例子 :https://www.jianshu.com/p/aa795afdf655 介绍 本文以监控绿盟设备为例. 1.登录被监 ...
- 监控Linux系统状态的命令
监控Linux系统状态的命令1 :w uptime命令查看系统负载 : w/uptime 最后面三个数字表示1分钟 ,5分钟 ,15分钟 平均有多少进程占用CPU 某一时刻1颗CPU只能有一个进程在使 ...
- linux 实时监控系统IO状态和IO性能
Snippet:2021-3-5 9:33 linux 实时监控系统IO状态和IO性能 问题概述:linux 实时监控系统IO状态和IO性能 方案细节 bash> iostat -c -k -p ...
- 【Zabbix-SNMP trap】使用Zabbix的SNMP trap监控类型监控设备的一个例子
本文以监控绿盟设备为例. 1.登录被监控的设备的管理系统,配置snmptrap地址指向zabbix服务器或代理服务器. snmptrap地址也叫陷阱. 2.配置或关闭防火墙,并验证是否能在zabbix ...
最新文章
- 开发者：Serverless 从懵比到实战
- OpenCV3的机器学习算法-K-means－使用Python
- 外企面试官最爱提的10个问题
- C高级第一次PTA作业（2）
- TortoiseGit 克隆_入门试炼_03
- likely() 和 unlikely()内建宏定义函数
- MySQL双主(master-master)补充
- 量化中需留意的坑之一
- 求两条轨迹间的hausdorff距离_干货 | 轨迹方程问题？两招咔嚓！
- BZOJ 3676 回文串（回文树）题解
- 解决：‘webpack-dev-server‘ 不是内部或外部命令，也不是可运行的程序 或批处理文件
- 苹果iOS捷径（快捷指令）自动填写表单
- Dummy variable (变量dummy化）
- 小鼠大脑解剖图分区_科学家们绘制小鼠大脑的详细3D结构图谱
- 基于单片机的双足仿生运动机器人的设计
- anemometer mysql_使用Anemometer分析MySQL慢查询记录
- MySQL索引数据结构详解
- linux was 读音,linux正确读音
- PowerBuilder学习笔记(2)PB与SQL语言
- 【计算机系统和网络安全技术】第九章：防火墙与入侵防御系统