vb.net 实时监控双门双向门禁控制板源代码

本示例使用设备介绍：实时网络双门双向门禁控制板可二次编程控制网络继电器远程开关-淘宝网 (taobao.com)

Imports System.Net.Sockets
Imports System.Net
Imports System.Text
Imports System.Threading

Imports System.Net.NetworkInformation
Imports System.Management
Public Class Form1
    Dim PortNumber As Integer  ''侦听端口号    
    Dim ListenerThre As Thread ''侦听线程
    Dim LocalIp As String      ''本地ip64
    Dim ready As Boolean = False ''线程运行标识
    Dim machinnos As String
    Dim RemoteIPoint As IPEndPoint
    Dim BeepCode As String
    Dim VoiceCode As String

    Public ListenerSock As Socket ''侦听socket

    Delegate Sub EditUi(ByVal data0 As String, ByVal data1 As String)  '线程内更新UI传送两个参数
    Delegate Sub EditTC(ByVal con As Integer, ByVal data1 As String)


    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        'Control.CheckForIllegalCrossThreadCalls = False   '经典解决"线程间操作无效: 从不是创建控件的线程访问它 ,尽量不要用这种方式

        getIp()
        ComboBox2.SelectedIndex = 0
        ComboBox3.SelectedIndex = 1
        ComboBox4.SelectedIndex = 16
        ComboBox5.SelectedIndex = 1
        StartListener() ''开始侦听
    End Sub

    Public Sub getIp()     '获取本机所有网卡的IP
        Dim Address() As System.Net.IPAddress
        Dim i As Integer
        Address = Dns.GetHostByName(Dns.GetHostName()).AddressList
        If UBound(Address) < 0 Then
            MsgBox("未能查找到本台电脑安装的网卡，暂不能启动本软件。", MsgBoxStyle.Critical + vbOKOnly, "注意")
            End
        Else
            For i = 0 To UBound(Address)
                ComboBox1.Items.Add(Address(i).ToString())
            Next
            ComboBox1.SelectedIndex = 0
            LocalIp = ComboBox1.Text.Trim()
        End If
    End Sub

    Private Sub StartListener()
        Dim LocalPoint As IPEndPoint
        PortNumber = TextBox6.Text
        While Not ready
            Try
                LocalPoint = New IPEndPoint(IPAddress.Parse(LocalIp), PortNumber)
                ListenerSock = New Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp)
                ListenerSock.Bind(LocalPoint)

                ListenerThre = New Thread(AddressOf ThrListener)
                ListenerThre.Start()
                ready = True
                'ListBox1.Items.Add(LocalPoint.ToString() & "已开始侦听......")
            Catch ex As Exception
                ListenerSock.Close()
                ready = False
                MsgBox("    有其它应用程序占用了 " & LocalPoint.ToString() & " ，请检查并关闭此应用后再打开本程序。", vbCritical + vbOKOnly, "警告")
                End
            End Try
        End While
    End Sub

    Private Sub ThrListener() '侦听线程      
        While ready
            Try
                Dim bytes(1024) As Byte
                Dim dataArray() As String
                Dim RemotePoint As System.Net.EndPoint = New System.Net.IPEndPoint(System.Net.IPAddress.Any, 0)
                Dim NumGet As Integer
                Dim Msg As String
                Dim Sendinf As String
                Dim SendBuf As Byte()
                Dim i As Integer

                Dim DevBufferIpAddrStr As String
                Dim DevBufferRemoteAddrStr As String
                Dim DevBufferCardCode As String
                Dim DevBufferUseTimeStr As String
                Dim DevRecFramesStr As String
                Dim DevBufferMachinStr As String
                Dim DevBufferDatetimeStr As String
                Dim DevBufferCardidStr As String
                Dim DevBufferUseMoneryStr As String
                Dim DevBufferReaderStr As String
                Dim DevBufferDoorNoStr As String
                Dim DevBufferDelayStr As String
                Dim DevBufferPasswPropStr As String
                Dim DevBufferPassWStr As String
                Dim DevBufferStaryStr As String
                Dim DevBufferRecordAddStr As String
                Dim DevBufferAllNoStr As String
                Dim DevBufferFunctionStr1 As String
                Dim DevBufferFunctionStr2 As String
                Dim DevBufferSerialNumStr As String
                Dim DevBufferInputKeyStr As String
                Dim DevBufferCommandStr As String
                Dim DevBufferQrcodeInfStr As String
                Dim DevBufferStateStr As String
                Dim DevBufferRandomCode As String
                Dim DevBufferSwitchStr As String
                Dim DevBufferFireStr As String

                NumGet = ListenerSock.ReceiveFrom(bytes, RemotePoint)
                Msg = Encoding.GetEncoding(936).GetString(bytes, 0, NumGet)
                'Msg = Encoding.UTF8.GetString(bytes, 0, NumGet)     '读取中文wifi名称时，需用utf8解码
                Me.Invoke(New EditUi(AddressOf EditUiNow), Now() & (" FromIP：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：", Msg) '用Invoke跨线程更新UI      

                Me.Invoke(New EditTC(AddressOf EditTCNow), 3, Convert.ToString(RemotePoint)) '用Invoke跨线程更新UI

                dataArray = Split(Convert.ToString(Msg), ",")
                Select Case dataArray(0)
                    Case "101"             '接收到 1、终端开机时向电脑发送的开机信息,         2、电脑发送002查询设备时间所返回的信息
                        DevRecFramesStr = dataArray(1)            '包序列号
                        DevBufferIpAddrStr = dataArray(2)         '终端IP
                        DevBufferRemoteAddrStr = dataArray(3)     '远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)         '机号
                        DevBufferDatetimeStr = dataArray(5)       '日期时间*/
                        If dataArray.Length > 6 Then              '2018年以后的设备有唯一硬件序号*/
                            DevBufferSerialNumStr = dataArray(6)
                        End If

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)


                        Dim SystemTimeStr As String = String.Format("{0:yyyy-MM-dd HH:mm:ss}", DateTime.Now)
                        If DevBufferDatetimeStr.Substring(0, 16) <> SystemTimeStr.Substring(0, 16) Then
                            Sendinf = "003," & DevRecFramesStr & "," & SystemTimeStr
                            SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                            ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                            Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)
                        End If

                        Me.Invoke(New EditTC(AddressOf EditTCNow), 1, DevBufferDatetimeStr) '用Invoke跨线程更新UI      

                    Case "150"                                    '接收到实时考勤门禁机刷卡数据
                        DevRecFramesStr = dataArray(1)            '包序列号
                        DevBufferIpAddrStr = dataArray(2)         '终端IP
                        DevBufferRemoteAddrStr = dataArray(3)     '远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)         '机号
                        DevBufferCardidStr = dataArray(5)         '卡号
                        DevBufferReaderStr = dataArray(6)         '消费金额*/
                        DevBufferDoorNoStr = dataArray(7)         '门或继电器号*/
                        DevBufferDelayStr = dataArray(8)          '门磁未关秒数，0表示已关*/
                        DevBufferPasswPropStr = dataArray(9)      '密码属性（0密码无效，1刷卡后按密码,2补签密码,3开门密码，4防迫胁密码）*/
                        DevBufferPassWStr = dataArray(10)         '密码(最多8位数字)*/
                        DevBufferUseTimeStr = dataArray(11)       '消费时间*/                        
                        If dataArray.Length > 12 Then
                            DevBufferSerialNumStr = dataArray(12)  '2018年以后的设备有唯一硬件序号
                        End If

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                        '此处加入业务对数据库的查、增、删、减操作
                        '用050指令返回开门成功，051指令返回开门失败，正式系统开发时要有重发机制

                        Select Case VoiceCode
                            Case "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15"  '发送禁止开门的指令"
                                Sendinf = "051," & DevBufferMachinStr & "," & DevBufferCardidStr & "," & TextBox5.Text.Trim() & "," & Format(NumericUpDown2.Value, "0") & "," & BeepCode & "," & VoiceCode
                            Case Else  '发送开门指令
                                Sendinf = "050," & DevBufferMachinStr & "," & DevBufferCardidStr & "," & TextBox5.Text.Trim() & "," & Format(NumericUpDown2.Value, "0") & "," & BeepCode & "," & VoiceCode & "," & DevBufferReaderStr & "," & DevBufferDoorNoStr & "," & Format(NumericUpDown1.Value, "0") & "," & Format(NumericUpDown2.Value, "0")
                        End Select
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                    Case "151"                                    '发送按钮开门申请信息
                        DevRecFramesStr = dataArray(1)            '包序列号
                        DevBufferIpAddrStr = dataArray(2)         '终端IP
                        DevBufferRemoteAddrStr = dataArray(3)     '远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)         '机号
                        DevBufferInputKeyStr = dataArray(5)       '&&按钮号
                        DevBufferReaderStr = dataArray(6)         '&&对应的门或继电器号
                        DevBufferDelayStr = dataArray(7)          '&&门磁未关秒数(0门已关)
                        DevBufferUseTimeStr = dataArray(8)        '&&刷卡时间
                        If UBound(dataArray) >= 9 Then DevBufferSerialNumStr = dataArray(9) Else DevBufferSerialNumStr = "" '唯一硬件序号

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                        Select Case VoiceCode
                            Case "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15"  '发送禁止开门的指令"
                                Sendinf = "051," & DevBufferMachinStr & "," & DevBufferInputKeyStr & "," & TextBox5.Text.Trim() & "," & Format(NumericUpDown2.Value, "0") & "," & BeepCode & "," & VoiceCode
                            Case Else   '发送开门指令
                                Sendinf = "050," & DevBufferMachinStr & "," & DevBufferInputKeyStr & "," & TextBox5.Text.Trim() & "," & Format(NumericUpDown2.Value, "0") & "," & BeepCode & "," & VoiceCode & "," & DevBufferInputKeyStr & "," & DevBufferReaderStr & "," & Format(NumericUpDown1.Value, "0") & "," & Format(NumericUpDown2.Value, "0")
                        End Select
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                    Case "152"    '门磁报警信息
                        DevRecFramesStr = dataArray(1)        ' &&包序列号
                        DevBufferIpAddrStr = dataArray(2)     ' &&终端IP
                        DevBufferRemoteAddrStr = dataArray(3) '&&远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)     '&&机号
                        DevBufferInputKeyStr = dataArray(5)   '&&门磁号
                        DevBufferReaderStr = dataArray(6)     '&&对应的门或继电器号
                        DevBufferDelayStr = dataArray(7)      '&&门磁未关秒数(0门已关)
                        DevBufferUseTimeStr = dataArray(8)    '&&刷卡时间
                        If UBound(dataArray) >= 9 Then DevBufferSerialNumStr = dataArray(9) Else DevBufferSerialNumStr = "" '唯一硬件序号

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                    Case "153"    '返回查询设备状态的053指令
                        DevRecFramesStr = dataArray(1)        ' &&包序列号
                        DevBufferIpAddrStr = dataArray(2)     ' &&终端IP
                        DevBufferRemoteAddrStr = dataArray(3) '&&远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)     '&&机号
                        DevBufferInputKeyStr = dataArray(5)   '&&继电器号
                        DevBufferReaderStr = dataArray(6)     '&&继电器状态
                        DevBufferDelayStr = dataArray(7)      '&&门磁未关秒数(0门已关)
                        DevBufferStateStr = dataArray(8)      '&&门磁报警状态
                        If UBound(dataArray) >= 9 Then DevBufferSerialNumStr = dataArray(9) Else DevBufferSerialNumStr = "" '唯一硬件序号

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                        Msg = "继电器号：" & DevBufferInputKeyStr & "，继电器状态：" & DevBufferReaderStr & "，门磁未关秒数：" & DevBufferDelayStr & "，门磁报警状态：" & DevBufferStateStr
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 9, Msg)

                    Case "154"                                    '接收到实时考勤门禁机卡离开感应区
                        DevRecFramesStr = dataArray(1)            '包序列号
                        DevBufferIpAddrStr = dataArray(2)         '终端IP
                        DevBufferRemoteAddrStr = dataArray(3)     '远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)         '机号
                        DevBufferCardidStr = dataArray(5)         '卡号
                        DevBufferSerialNumStr = dataArray(6)

                    Case "155" '&&门禁脱网记录发送----
                        DevRecFramesStr = dataArray(1)      ' &&包序列号
                        DevBufferIpAddrStr = dataArray(2)   ' &&终端IP
                        DevBufferRemoteAddrStr = dataArray(3) '&&远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)     '&&机号
                        DevBufferCardidStr = dataArray(5)     '&&卡号
                        DevBufferReaderStr = dataArray(6)    '&&读头
                        DevBufferDoorNoStr = dataArray(7)    '&&门或继电器号
                        DevBufferPasswPropStr = dataArray(8) '&&密码属性（0密码无效，1刷卡后按密码,2补签密码,3开门密码，4防迫胁密码）
                        DevBufferUseTimeStr = dataArray(9)   '&&刷卡时间
                        DevBufferStaryStr = dataArray(10)    '&&状态  0扣费 1计次
                        DevBufferRecordAddStr = dataArray(11) '&&记录地址标识
                        DevBufferAllNoStr = dataArray(12)    '&&总计录数
                        If UBound(dataArray) = 13 Then DevBufferSerialNumStr = dataArray(13) Else DevBufferSerialNumStr = "" '唯一硬件序号

                        Sendinf = "001," + DevRecFramesStr        '向设备发此数据表示已收到信息，否则设备会连续发三次
                        SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                        ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)

                        If Not IsDateTime(DevBufferUseTimeStr) Then  '记录的刷卡时间非法，表示此记录有问题（测试时的其它数据）
                            DevBufferUseTimeStr = "9999-99-99 99:99:99"
                        End If

                        '这里对脱网记录进行处理

                        If CheckBox3.Checked Then  '选择清除已上传的记录驱使用设备继续上传剩下的记录
                            Sendinf = "055," + DevBufferMachinStr + "," + DevBufferCardidStr + "," + DevBufferUseTimeStr + "," + DevBufferRecordAddStr '&&清除设备内当前这条记录,设备才会传下一条记录
                            SendBuf = Encoding.GetEncoding(936).GetBytes(Sendinf)
                            ListenerSock.SendTo(SendBuf, SendBuf.Length, SocketFlags.None, RemotePoint)
                            Me.Invoke(New EditTC(AddressOf EditTCNow), 2, Now() & (" SendTo：" & Convert.ToString(RemotePoint) + "          ").Substring(0, 30) & "Data：" & Sendinf)
                        End If

                    Case "158" '响应电脑远程开门的058指令
                        DevRecFramesStr = dataArray(1)      ' &&包序列号
                        DevBufferIpAddrStr = dataArray(2)   ' &&终端IP
                        DevBufferRemoteAddrStr = dataArray(3) '&&远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)     '&&机号
                        DevBufferStaryStr = dataArray(5)      '&&0开门成功,1开门密码认证失败，2开门密码认证失败超过6次，需等待一段时间后再能再次接收058指令(防暴力破解)，3 不允许此时间段开门
                        DevBufferRandomCode = dataArray(6)    '&&动态随机码(8位十六进制)

                        Me.Invoke(New EditTC(AddressOf EditTCNow), 10, DevBufferRandomCode)

                        Msg = ""
                        Select Case DevBufferStaryStr
                            Case "0"
                                Msg = "IP：" & DevBufferIpAddrStr & " 开门成功"
                            Case "1"
                                Msg = "IP：" & DevBufferIpAddrStr & " 开门密码认证失败!"
                            Case "2"
                                Msg = "IP：" & DevBufferIpAddrStr & " 开门密码认证失败超过6次，需等待一段时间后再能再次接收058指令(防暴力破解)"
                            Case "3"
                                Msg = "IP：" & DevBufferIpAddrStr & " 不允许此时间段开门"
                        End Select
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 9, Msg)
                        Me.Invoke(New EditTC(AddressOf EditTCNow), 10, DevBufferRandomCode)

                    Case "159" '&&心跳信息
                        DevRecFramesStr = dataArray(1)      ' &&包序列号
                        DevBufferIpAddrStr = dataArray(2)   ' &&终端IP
                        DevBufferRemoteAddrStr = dataArray(3) '&&远程电脑指机IP
                        DevBufferMachinStr = dataArray(4)     '&&机号
                        DevBufferQrcodeInfStr = dataArray(5)  '&&信息类型
                        DevBufferSwitchStr = dataArray(6)     '继电器状态(bit0为第1门bit1为第2门)
                        DevBufferFireStr = dataArray(7)       '消防输入状态
                        DevBufferRandomCode = dataArray(8)    '&&动态随机码(8位十六进制)
                        DevBufferDatetimeStr = dataArray(9)   '日期时间
                        DevBufferSerialNumStr = dataArray(10) '设备硬件号

                        Me.Invoke(New EditTC(AddressOf EditTCNow), 10, DevBufferRandomCode)

                End Select


            Catch ex As Exception
                Me.Invoke(New EditTC(AddressOf EditTCNow), 2, "ERROR：" & vbCrLf & ex.GetHashCode & ex.Message & vbCrLf)
            End Try
        End While
    End Sub