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VB 串口数据采集

塞又亦 2007-04-25 04:53:14 403  浏览
  • 这个问题恐怕没有几个人会吧!!!主要是太难了,呵呵,一般的回答的都是在别的地方复制的,我想听听你们自己的想法,我要实现串口数据的保存和实时显示,保存在数据库中,实时显示是... 这个问题恐怕没有几个人会吧!!! 主要是太难了,呵呵,一般的回答的都是在别的地方复制的,我想听听你们自己的想法,我要实现串口数据的保存和实时显示,保存在数据库中,实时显示是用曲线图的形式画出来,真难啊,想以采集的时间为横坐标,采集到的压力数据为纵坐标,请你们告诉我一下啊,现在高手太少了。。。。。 画图是应该先入库再调数据库的数据还是直接接受串口数据进行做图?这一点我还不知道! 展开

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  • havehou932 2007-04-26 00:00:00
    我看你主要是难在画图吧,你可以用MSCHART控件,具体用法可以参考MSDN

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  • 靳薪善 2016-08-22 00:00:00
    实时采集的数据可直接用来画曲线,但往往为了以后查询,同时应按定时间隔写入数据库或文本文件。所以可在写入数据库后通过查询做到实时显示和更新。 '窗体加载时将已记录的数据查询后绘图 Private Sub Form_Load() chaxun1 = "select * from jishijilu where gyh_riqi='" & gongyi_sj(0) & "-" & record_rq & "'order by shijian " mdh = chaxun1 Adodc3.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Ldgz\wd.mdb;Persist Security Info=False" Adodc3.RecordSource = mdh Adodc3.Refresh zslNew = Adodc3.Recordset.RecordCount Text4 = zslNew If zslNew >= 1 Then Adodc3.Recordset.MoveFirst For i = 0 To zslNew - 1 quexian(0, i) = Adodc3.Recordset(0) For j = 2 To 9 quexian(j, i) = Adodc3.Recordset(j) Next j Adodc3.Recordset.MoveNext Next i Adodc3.Recordset.MoveFirst For j = 0 To zslNew - 1 Picture1.Line (j * 5 + 500, quexian(2, j) * -30 + 3399)-(j * 5 + 500, quexian(2, j) * -30 + 3401), vbRed, BF Picture1.Line (j * 5 + 500, quexian(3, j) * -30 + 3399)-(j * 5 + 500, quexian(3, j) * -30 + 3401), QBColor(7), BF Picture1.Line (j * 5 + 500, quexian(4, j) * -30 + 3399)-(j * 5 + 500, quexian(4, j) * -30 + 3401), vbWhite, BF Picture1.Line (j * 5 + 500, quexian(5, j) * -30 + 3399)-(j * 5 + 500, quexian(5, j) * -30 + 3401), vbYellow, BF Picture1.Line (j * 5 + 500, quexian(6, j) * -30 + 3399)-(j * 5 + 500, quexian(6, j) * -30 + 3401), vbGreen, BF If quexian(8, j) < 1 Then wy_wy = 0 + 166.7 br_br = 55 ElseIf quexian(8, j) >= 1 And quexian(8, j) < 10 Then wy_wy = -1500 + 166.7 br_br = 5.5556 ElseIf quexian(8, j) >= 10 And quexian(8, j) < 100 Then wy_wy = -3000 + 166.7 br_br = 0.5555 ElseIf quexian(8, j) >= 100 And quexian(8, j) < 1000 Then wy_wy = -4500 + 166.7 br_br = 0.055555 End If Picture1.Line (j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3397 + 3000)-(j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3403 + 3000), QBColor(11), BF Next j zslOld = zslNew End If '记录时间Z长75小时 Picture2.Height = 10000 Picture2.Visible = True Picture1.Visible = True colvb = vbWhite xx = 100 yy = 150 txt = "℃" wp = xp(colvb, xx, yy, txt) yy = 350 txt = "100" wp = xp(colvb, xx, yy, txt) xx = 200 yy = 1850 txt = "50" wp = xp(colvb, xx, yy, txt) yy = 3350 xx = 300 txt = "0" wp = xp(colvb, xx, yy, txt) xx = 100 yy = 4850 txt = "-50" wp = xp(colvb, xx, yy, txt) xx = 0 yy = 6350 txt = "-100" wp = xp(colvb, xx, yy, txt) xx = 10800 + 100 yy = 150 txt = "℃" wp = xp(colvb, xx, yy, txt) yy = 350 txt = "100" wp = xp(colvb, xx, yy, txt) xx = 10800 + 200 yy = 1850 txt = "50" wp = xp(colvb, xx, yy, txt) yy = 3350 xx = 10800 + 300 txt = "0" wp = xp(colvb, xx, yy, txt) xx = 10800 + 100 yy = 4850 txt = "-50" wp = xp(colvb, xx, yy, txt) xx = 10800 + 0 yy = 6350 txt = "-100" wp = xp(colvb, xx, yy, txt) '真空坐标 colvb = vbRed xx = 11400 yy = 150 txt = "Pa" wp = xp(colvb, xx, yy, txt) yy = 350 txt = "1000" wp = xp(colvb, xx, yy, txt) xx = 11500 yy = 1850 txt = "100" wp = xp(colvb, xx, yy, txt) yy = 3350 xx = 11600 txt = "10" wp = xp(colvb, xx, yy, txt) xx = 11700 yy = 4850 txt = "1" wp = xp(colvb, xx, yy, txt) xx = 11500 yy = 6350 txt = "0.1" wp = xp(colvb, xx, yy, txt) xx = 500 yy = 150 txt = "Pa" wp = xp(colvb, xx, yy, txt) yy = 350 txt = "1000" wp = xp(colvb, xx, yy, txt) yy = 150 xx = 2200 txt = "6hr" wp = xp(colvb, xx, yy, txt) xx = 4000 txt = "12hr" wp = xp(colvb, xx, yy, txt) xx = 5800 txt = "18hr" wp = xp(colvb, xx, yy, txt) xx = 7600 txt = "24hr" wp = xp(colvb, xx, yy, txt) xx = 9400 txt = "30hr" wp = xp(colvb, xx, yy, txt) xx = 13000 txt = "42hr" wp = xp(colvb, xx, yy, txt) xx = 14800 txt = "48hr" wp = xp(colvb, xx, yy, txt) xx = 16600 txt = "54hr" wp = xp(colvb, xx, yy, txt) xx = 18400 txt = "60hr" wp = xp(colvb, xx, yy, txt) xx = 20200 txt = "66hr" wp = xp(colvb, xx, yy, txt) xx = 22000 txt = "72hr" wp = xp(colvb, xx, yy, txt) xx = 23800 txt = "78hr" wp = xp(colvb, xx, yy, txt) xx = 25600 txt = "84hr" wp = xp(colvb, xx, yy, txt) xx = 27400 txt = "90hr" wp = xp(colvb, xx, yy, txt) xx = 29200 txt = "96hr" wp = xp(colvb, xx, yy, txt) xx = 600 yy = 1850 txt = "100" wp = xp(colvb, xx, yy, txt) yy = 3350 xx = 11600 txt = "10" wp = xp(colvb, xx, yy, txt) xx = 700 yy = 4850 txt = "1" wp = xp(colvb, xx, yy, txt) xx = 600 yy = 6350 txt = "0.1" wp = xp(colvb, xx, yy, txt) xx = 22100 yy = 350 txt = "1000" wp = xp(colvb, xx, yy, txt) yy = 1850 txt = " 100" wp = xp(colvb, xx, yy, txt) yy = 3350 txt = " 10" wp = xp(colvb, xx, yy, txt) yy = 4850 txt = " 1" wp = xp(colvb, xx, yy, txt) yy = 6350 txt = " 0.1" wp = xp(colvb, xx, yy, txt) '画格 Picture1.ForeColor = vbWhite Picture1.Line (450, 700)-(500, 700) Picture1.Line (450, 1000)-(500, 1000) Picture1.Line (450, 1300)-(500, 1300) Picture1.Line (450, 1600)-(500, 1600) Picture1.ForeColor = vbRed Picture1.Line (500, 566.7)-(550, 566.7) Picture1.Line (500, 733.3)-(550, 733.3) Picture1.Line (500, 900)-(550, 900) Picture1.Line (500, 1066.7)-(550, 1066.7) Picture1.Line (500, 1233.3)-(550, 1233.3) Picture1.Line (500, 1400)-(550, 1400) Picture1.Line (500, 1566.7)-(550, 1566.7) Picture1.Line (500, 1733.3)-(550, 1733.3) Picture1.Line (500, 2066.7)-(550, 2066.7) Picture1.Line (500, 2233.3)-(550, 2233.3) Picture1.Line (500, 2400)-(550, 2400) Picture1.Line (500, 2566.7)-(550, 2566.7) Picture1.Line (500, 2733.3)-(550, 2733.3) Picture1.Line (500, 2900)-(550, 2900) Picture1.Line (500, 3066.7)-(550, 3066.7) Picture1.Line (500, 3233.3)-(550, 3233.3) Picture1.Line (500, 3566.7)-(550, 3566.7) Picture1.Line (500, 3733.3)-(550, 3733.3) Picture1.Line (500, 3900)-(550, 3900) Picture1.Line (500, 4066.7)-(550, 4066.7) Picture1.Line (500, 4233.3)-(550, 4233.3) Picture1.Line (500, 4400)-(550, 4400) Picture1.Line (500, 4566.7)-(550, 4566.7) Picture1.Line (500, 4733.3)-(550, 4733.3) Picture1.Line (500, 5066.7)-(550, 5066.7) Picture1.Line (500, 5233.3)-(550, 5233.3) Picture1.Line (500, 5400)-(550, 5400) Picture1.Line (500, 5566.7)-(550, 5566.7) Picture1.Line (500, 5733.3)-(550, 5733.3) Picture1.Line (500, 5900)-(550, 5900) Picture1.Line (500, 6066.7)-(550, 6066.7) Picture1.Line (500, 6233.3)-(550, 6233.3) Picture1.ForeColor = vbWhite Picture1.Line (450, 400)-(27500, 400) Picture1.Line (450, 1900)-(27500, 1900) Picture1.Line (450, 3400)-(27500, 3400) Picture1.Line (450, 4900)-(27500, 4900) Picture1.Line (450, 6400)-(27500, 6400) Picture1.Line (450, 2200)-(500, 2200) Picture1.Line (450, 2500)-(500, 2500) Picture1.Line (450, 2800)-(500, 2800) Picture1.Line (450, 3100)-(500, 3100) Picture1.Line (450, 3700)-(500, 3700) Picture1.Line (450, 4000)-(500, 4000) Picture1.Line (450, 4300)-(500, 4300) Picture1.Line (450, 4600)-(500, 4600) Picture1.Line (450, 5200)-(500, 5200) Picture1.Line (450, 5500)-(500, 5500) Picture1.Line (450, 5800)-(500, 5800) Picture1.Line (450, 6100)-(500, 6100) Picture1.Line (500, 400)-(500, 6400) Picture1.Line (500 + 0, 400)-(500 + 0, 6400) Picture1.Line (1400 + 0, 400)-(1400 + 0, 6400) Picture1.Line (2300 + 0, 400)-(2300 + 0, 6400) Picture1.Line (3200 + 0, 400)-(3200 + 0, 6400) Picture1.Line (4100 + 0, 400)-(4100 + 0, 6400) Picture1.Line (5000 + 0, 400)-(5000 + 0, 6400) Picture1.Line (5900 + 0, 400)-(5900 + 0, 6400) Picture1.Line (6800 + 0, 400)-(6800 + 0, 6400) Picture1.Line (7700 + 0, 400)-(7700 + 0, 6400) Picture1.Line (8600 + 0, 400)-(8600 + 0, 6400) Picture1.Line (9500 + 0, 400)-(9500 + 0, 6400) Picture1.Line (10400 + 0, 400)-(10400 + 0, 6400) Picture1.Line (11300, 400)-(11300, 6400) Picture1.Line (12200, 400)-(12200, 6400) Picture1.Line (13100, 400)-(13100, 6400) Picture1.Line (14000, 400)-(14000, 6400) Picture1.Line (14900, 400)-(14900, 6400) Picture1.Line (15800, 400)-(15800, 6400) Picture1.Line (16700, 400)-(16700, 6400) Picture1.Line (17600, 400)-(17600, 6400) Picture1.Line (18500, 400)-(18500, 6400) Picture1.Line (19400, 400)-(19400, 6400) Picture1.Line (20300, 400)-(20300, 6400) Picture1.Line (21200, 400)-(21200, 6400) Picture1.Line (22100, 400)-(22100, 6400) Picture1.Line (23000, 400)-(23000, 6400) Picture1.Line (23900, 400)-(23900, 6400) Picture1.Line (24800, 400)-(24800, 6400) Picture1.Line (25700, 400)-(25700, 6400) Picture1.Line (26600, 400)-(26600, 6400) Picture1.Line (27500, 400)-(27500, 6400) Picture1.Line (0 * 5 + 500, 3400 - b(0) * 30)-(c(1) * 5 + 500, 3400 - b(0) * 30), QBColor(12) Picture1.Line (c(1) * 5 + 498, 3400 - b(1) * 30)-(c(2) * 5 + 502, 3400 - b(1) * 30), QBColor(12) Picture1.Line (c(2) * 5 + 498, 3400 - b(2) * 30)-(c(3) * 5 + 502, 3400 - b(2) * 30), QBColor(12) Picture1.Line (c(3) * 5 + 498, 3400 - b(3) * 30)-(c(4) * 5 + 502, 3400 - b(3) * 30), QBColor(12) Picture1.Line (c(4) * 5 + 498, 3400 - b(4) * 30)-(c(5) * 5 + 502, 3400 - b(4) * 30), QBColor(12) Picture1.Line (c(5) * 5 + 498, 3400 - b(5) * 30)-(c(6) * 5 + 502, 3400 - b(5) * 30), QBColor(12) Picture1.Line (c(6) * 5 + 498, 3400 - b(6) * 30)-(c(7) * 5 + 502, 3400 - b(6) * 30), QBColor(12) Picture1.Line (c(7) * 5 + 498, 3400 - b(7) * 30)-(c(8) * 5 + 502, 3400 - b(7) * 30), QBColor(12) Picture1.Line (c(8) * 5 + 498, 3400 - b(8) * 30)-(c(9) * 5 + 502, 3400 - b(8) * 30), QBColor(12) Picture1.Line (c(9) * 5 + 498, 3400 - b(9) * 30)-(c(10) * 5 + 502, 3400 - b(9) * 30), QBColor(12) Picture1.Line (c(10) * 5 + 498, 3400 - b(10) * 30)-(c(11) * 5 + 502, 3400 - b(10) * 30), QBColor(12) Picture1.Line (c(11) * 5 + 498, 3400 - b(11) * 30)-(c(12) * 5 + 502, 3400 - b(11) * 30), QBColor(12) Picture1.Line (c(12) * 5 + 498, 3400 - b(12) * 30)-(c(13) * 5 + 502, 3400 - b(12) * 30), QBColor(12) Picture1.Line (c(13) * 5 + 498, 3400 - b(13) * 30)-(c(14) * 5 + 502, 3400 - b(13) * 30), QBColor(12) Picture1.Line (c(14) * 5 + 498, 3400 - b(14) * 30)-(c(15) * 5 + 502, 3400 - b(14) * 30), QBColor(12) Picture1.Line (c(15) * 5 + 498, 3400 - b(15) * 30)-(c(16) * 5 + 502, 3400 - b(15) * 30), QBColor(12) chaxun1 = "select * from jishijilu where gyh_riqi='" & gongyi_sj(0) & "-" & record_rq & "'order by shijian " mdh = chaxun1 Adodc3.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Ldgz\wd.mdb;Persist Security Info=False" Adodc3.RecordSource = mdh Adodc3.Refresh zslNew = Adodc3.Recordset.RecordCount Text4 = zslNew If zslNew >= 1 Then Adodc3.Recordset.MoveFirst For i = 0 To zslNew - 1 quexian(0, i) = Adodc3.Recordset(0) For j = 2 To 7 quexian(j, i) = Adodc3.Recordset(j) Next j Adodc3.Recordset.MoveNext Next i Adodc3.Recordset.MoveFirst For j = 0 To zslNew - 1 Picture1.Line (j * 5 + 500, quexian(2, j) * -30 + 3399)-(j * 5 + 500, quexian(2, j) * -30 + 3401), vbRed, BF Picture1.Line (j * 5 + 500, quexian(3, j) * -30 + 3399)-(j * 5 + 500, quexian(3, j) * -30 + 3401), QBColor(7), BF Picture1.Line (j * 5 + 500, quexian(4, j) * -30 + 3399)-(j * 5 + 500, quexian(4, j) * -30 + 3401), vbWhite, BF Picture1.Line (j * 5 + 500, quexian(5, j) * -30 + 3399)-(j * 5 + 500, quexian(5, j) * -30 + 3401), vbYellow, BF Picture1.Line (j * 5 + 500, quexian(6, j) * -30 + 3399)-(j * 5 + 500, quexian(6, j) * -30 + 3401), vbGreen, BF If quexian(8, j) < 1 Then wy_wy = 0 + 166.7 br_br = 55 ElseIf quexian(8, j) >= 1 And quexian(8, j) < 10 Then wy_wy = -1500 + 166.7 br_br = 5.5556 ElseIf quexian(8, j) >= 10 And quexian(8, j) < 100 Then wy_wy = -3000 + 166.7 br_br = 0.5555 ElseIf quexian(8, j) >= 100 And quexian(8, j) < 1000 Then wy_wy = -4500 + 166.7 br_br = 0.055555 End If Picture1.Line (j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3397 + 3000)-(j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3403 + 3000), QBColor(11), BF Next j zslOld = zslNew End If zslOld = zslNew End Sub '通过计时器调用定时更新 Private Sub cmdRef_Click() chaxun1 = "select * from jishijilu where gyh_riqi='" & gongyi_sj(0) & "-" & record_rq & "'order by shijian " mdh = chaxun1 Adodc3.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Ldgz\wd.mdb;Persist Security Info=False" Adodc3.RecordSource = mdh Adodc3.Refresh zslNew = Adodc3.Recordset.RecordCount Text4 = zslNew If zslNew > 1 Then Adodc3.Recordset.MoveLast For j = 2 To 7 quexian(j, i) = Adodc3.Recordset(j) Next j Picture2.Height = 10000 Picture1.Visible = True If zslOld >= 1 Then For j = zslOld - 1 To zslNew - 1 Picture1.Line (j * 5 + 500, quexian(2, j) * -30 + 3399)-(j * 5 + 500, quexian(2, j) * -30 + 3401), vbRed, BF Picture1.Line (j * 5 + 500, quexian(3, j) * -30 + 3399)-(j * 5 + 500, quexian(3, j) * -30 + 3401), QBColor(7), BF Picture1.Line (j * 5 + 500, quexian(4, j) * -30 + 3399)-(j * 5 + 500, quexian(4, j) * -30 + 3401), vbWhite, BF Picture1.Line (j * 5 + 500, quexian(5, j) * -30 + 3399)-(j * 5 + 500, quexian(5, j) * -30 + 3401), vbYellow, BF Picture1.Line (j * 5 + 500, quexian(6, j) * -30 + 3399)-(j * 5 + 500, quexian(6, j) * -30 + 3401), vbGreen, BF If quexian(8, j) < 1 Then wy_wy = 0 + 166.7 br_br = 55 ElseIf quexian(8, j) >= 1 And quexian(8, j) < 10 Then wy_wy = -1500 + 166.7 br_br = 5.5556 ElseIf quexian(8, j) >= 10 And quexian(8, j) < 100 Then wy_wy = -3000 + 166.7 br_br = 0.5555 ElseIf quexian(8, j) >= 100 And quexian(8, j) < 1000 Then wy_wy = -4500 + 166.7 br_br = 0.055555 End If Picture1.Line (j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3395 + 3000)-(j * 5 + 500, quexian(8, j) * br_br * -30 + wy_wy + 3405 + 3000), QBColor(11), BF Next j End If '记录时间Z长96小时 cmdPrint.Enabled = True End If zslOld = zslNew End Sub

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会做了,但是如何循环呢? text1 输入,label1显示,点击按钮开始,比如text1的值是10,怎样才能让程序10到0然后执行某个功能,text1的值又变成10,再。如此循环
2011-12-26 04:52:19 322 3
vb是什么
 
2006-11-10 06:33:16 725 4
用VB做了个数据采集的程序,程序很卡,都是有哪些原因呢?
 
2014-10-26 03:57:44 386 3
vb使用串口和西门子200通讯,西门子200做从站,modbus-RTU,谁能给我个范例。
 
2017-06-12 08:54:13 351 1
vb计时器设计图片左右往复运动vb代码
 
2013-06-28 02:23:36 404 1
求LabVIEW虚拟仪器数据采集与串口通信测控应用实战_李江 的光盘资料。
qq邮箱:384455874@qq.com... qq邮箱:384455874@qq.com 展开
2012-03-31 13:08:13 353 1
LabVIEW虚拟仪器数据采集与串口通信测控应用实战.iso 请发我一份,谢谢!
 
2011-11-26 17:07:08 525 2
LabVIEW虚拟仪器数据采集与串口通信测控应用实战.iso 请发我一份,谢谢!
 
2012-03-01 03:12:55 388 3
vb 内循环
vb里面如何输出如下的效果:a(3)分别为1,2,3我不要写成fori=1to3print#1,a(i)nexti循环输出到一行里,语句这个样子:print#1,a(i),i=1to3但这样写是错的该如何写请高手指点fori=1to... vb里面如何输出如下的效果: a(3) 分别为1,2,3 我不要写成 for i= 1 to 3 print #1, a(i) next i 循环输出到一行里,语句这个样子:print #1, a(i),i=1 to 3 但这样写是错的 该如何写 请高手指点 for i= 1 to 3 print #1, a(i); next i Z后我问好了 在a(i)后面加个分号就好了 展开
2010-01-31 01:43:45 284 4
VB计时器interval
我把interval的属性调到10,定义一个静态变量t,Timer1.Timer事件为t=t+1,结果一秒内t自加100。但我把interval设为1,结果一秒内t自加甚至不到1,这是什么情况?如何解决?
2010-06-13 08:45:36 272 4
vb正计时器
做一个这样的格式的 00:00:00 往上计时 dim a as date a=format(00:00:00 AM) text1.text=a timer.interval=1000 a=a+1 我纯新手 只知道大概是这样一个格式 请帮忙修改下。 Z好每句后面加上说明 Z好修改我这上面的吧
2011-11-04 04:28:53 344 2

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