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基于C#实现与新大陆扫码枪通信

程序员文章站 2022-05-27 20:26:18
随着工业互联的发展,扫码枪在很多场合都有所应用,超市、商场以及一些智能工厂。今天主要讲如何通过C#实现与新大陆扫码枪(OY10)进行通信,对于扫码枪的配置,这里就不多说了,结合说明书就可以实现。这里值得注意的是,如果安装驱动后,电脑设备管理器中看不到COM口,可能需要扫一个条形码来设置一下,具体参考 ......

   随着工业互联的发展,扫码枪在很多场合都有所应用,超市、商场以及一些智能工厂。今天主要讲如何通过c#实现与新大陆扫码枪(oy10)进行通信,对于扫码枪的配置,这里就不多说了,结合说明书就可以实现。这里值得注意的是,如果安装驱动后,电脑设备管理器中看不到com口,可能需要扫一个条形码来设置一下,具体参考说明书通讯配置章节。

   首先贴下界面,基于winform开发,主要就是正常的串口通信,涉及的技术包括ui界面设计+串口通信知识+参数配置处理+委托更新界面,涵盖了一个小系统必备的一些知识。

    基于C#实现与新大陆扫码枪通信

 

    再来贴一些源码,首先贴个核心串口类的编写:

 

  1 using system;
  2 using system.collections.generic;
  3 using system.io.ports;
  4 using system.linq;
  5 using system.text;
  6 using system.threading.tasks;
  7 
  8 namespace newland
  9 {
 10     public delegate void showmsgdelegate(string info);
 11 
 12     public class newlandserial
 13     {
 14 
 15         //定义串口类对象
 16         private serialport mycom;
 17         //定义接收字节数组
 18         byte[] bdata = new byte[1024];
 19         byte mreceivebyte;
 20         int mreceivebytecount = 0;
 21         public showmsgdelegate myshowinfo;
 22 
 23         public newlandserial()
 24         {
 25             mycom = new serialport();
 26 
 27         }
 28 
 29         #region 打开关闭串口方法
 30         /// <summary>
 31         /// 打开串口方法【9600 n 8 1】
 32         /// </summary>
 33         /// <param name="ibaudrate">波特率</param>
 34         /// <param name="iportno">端口号</param>
 35         /// <param name="idatabits">数据位</param>
 36         /// <param name="iparity">校验位</param>
 37         /// <param name="istopbits">停止位</param>
 38         /// <returns></returns>
 39         public bool openmycomm(int ibaudrate, string iportno, int idatabits, parity iparity, stopbits istopbits)
 40         {
 41             try
 42             {
 43                 //关闭已打开串口
 44                 if (mycom.isopen)
 45                 {
 46                     mycom.close();
 47                 }
 48                 //设置串口属性
 49                 mycom.baudrate = ibaudrate;
 50                 mycom.portname = iportno;
 51                 mycom.databits = idatabits;
 52                 mycom.parity = iparity;
 53                 mycom.stopbits = istopbits;
 54                 mycom.receivedbytesthreshold = 1;
 55                 mycom.datareceived += mycom_datareceived;
 56 
 57                 mycom.open();
 58                 return true;
 59             }
 60             catch
 61             {
 62                 return false;
 63             }
 64         }
 65 
 66         private void mycom_datareceived(object sender, serialdatareceivedeventargs e)
 67         {
 68             mreceivebytecount = 0;
 69             while (mycom.bytestoread > 0)
 70             {
 71                 mreceivebyte = (byte)mycom.readbyte();
 72                 bdata[mreceivebytecount] = mreceivebyte;
 73                 mreceivebytecount += 1;
 74                 if (mreceivebytecount >= 1024)
 75                 {
 76                     mreceivebytecount = 0;
 77                     //清除输入缓存区
 78                     mycom.discardinbuffer();
 79                     return;
 80                 }
 81             }
 82             if (mreceivebytecount > 0)
 83             {
 84                 myshowinfo(encoding.ascii.getstring(getbytearray(bdata, 0, mreceivebytecount)));
 85             }
 86 
 87         }
 88 
 89         /// <summary>
 90         /// 自定义截取字节数组
 91         /// </summary>
 92         /// <param name="bytearr"></param>
 93         /// <param name="start"></param>
 94         /// <param name="length"></param>
 95         /// <returns></returns>
 96         private byte[] getbytearray(byte[] bytearr, int start, int length)
 97         {
 98             byte[] res = new byte[length];
 99             if (bytearr != null && bytearr.length >= length)
100             {
101                 for (int i = 0; i < length; i++)
102                 {
103                     res[i] = bytearr[i + start];
104                 }
105 
106             }
107             return res;
108         }
109 
110 
111         /// <summary>
112         /// 关闭串口方法
113         /// </summary>
114         /// <returns></returns>
115         public bool closeport()
116         {
117             if (mycom.isopen)
118             {
119                 mycom.close();
120                 return true;
121             }
122             else
123             {
124                 return false;
125             }
126 
127         }
128         #endregion
129 
130     }
131 }

 

    再者就是界面的调用,直接看代码:

 1 using system;
 2 using system.collections.generic;
 3 using system.componentmodel;
 4 using system.configuration;
 5 using system.data;
 6 using system.drawing;
 7 using system.io.ports;
 8 using system.linq;
 9 using system.text;
10 using system.threading.tasks;
11 using system.windows.forms;
12 
13 namespace newland
14 {
15     public partial class frmmain : form
16     {
17         public frmmain()
18         {
19             initializecomponent();
20             this.load += frmmain_load;
21 
22         }
23 
24         private void frmmain_load(object sender, eventargs e)
25         {
26             this.btn_disconn.enabled = false;
27         }
28 
29         private void txt_info_doubleclick(object sender, eventargs e)
30         {
31             this.txt_info.clear();
32         }
33 
34         newlandserial mynewland;
35 
36 
37         private void btn_connect_click(object sender, eventargs e)
38         {
39            string port= configurationmanager.appsettings["port"].tostring();
40 
41             mynewland = new newlandserial();
42             mynewland.myshowinfo += showinfo;
43 
44             if (mynewland.openmycomm(9600, port, 8, parity.none, stopbits.one))
45             {
46                 messagebox.show("连接成功!", "建立连接");
47                 this.btn_connect.enabled = false;
48                 this.btn_disconn.enabled = true;
49             }
50             else
51             {
52                 messagebox.show("连接失败!", "建立连接");
53             }
54         }
55 
56         private void showinfo(string info)
57         {
58             invoke(new action(() =>
59             {
60                 this.txt_info.appendtext(datetime.now.tostring("yyyy/mm/dd hh:mm:ss") + "   " + info + environment.newline);
61             }));
62         }
63 
64         private void btn_disconn_click(object sender, eventargs e)
65         {
66             if (mynewland.closeport())
67             {
68                 messagebox.show("断开连接成功!", "断开连接");
69                 this.btn_connect.enabled = true;
70                 this.btn_disconn.enabled = false;
71             }
72             else
73             {
74                 messagebox.show("断开连接失败!", "断开连接");
75             }
76         }
77 
78         private void btn_paraset_click(object sender, eventargs e)
79         {
80             new frmparaset().showdialog();
81         }
82     }
83 }

 

    最后是参数配置,通过app.config实现:

 1 using system;
 2 using system.collections.generic;
 3 using system.componentmodel;
 4 using system.configuration;
 5 using system.data;
 6 using system.drawing;
 7 using system.linq;
 8 using system.text;
 9 using system.threading.tasks;
10 using system.windows.forms;
11 
12 namespace newland
13 {
14     public partial class frmparaset : form
15     {
16         public frmparaset()
17         {
18             initializecomponent();
19             this.load += frmparaset_load;
20         }
21 
22         private void frmparaset_load(object sender, eventargs e)
23         {
24             for (int i = 0; i < 20; i++)
25             {
26                 this.cmb_port.items.add("com" + i.tostring());
27             }
28 
29             this.cmb_port.text = configurationmanager.appsettings["port"].tostring();
30         }
31 
32         private void btn_set_click(object sender, eventargs e)
33         {
34             configuration cfa = configurationmanager.openexeconfiguration(configurationuserlevel.none); //首先打开配置文件
35             cfa.appsettings.settings["port"].value = this.cmb_port.text;
36             cfa.save();  //保存配置文件
37             configurationmanager.refreshsection("appsettings");  //刷新配置文件
38             this.close();
39         }
40     }
41 }