一、前言

此系统用于扭力控制，嵌入式平台，采用的开发板为335X，这个还是比较稳定的。

二、开发环境

硬件平台：335X

软件：Qt+嵌入式linux

三、实现功能

1：QSS界面换肤

2：更换主界面背景

3：中文双拼输入法

4：数据图形曲线显示

5：数据统计柱状图显示。

6：串口网络通信

四、效果图

五、核心代码

void Com_RS232_API::ReadData()
{
 if (com->bytesAvailable() <= 0) {
 return;
 }
 myHelper::Sleep(sleep);
 QByteArray data = com->readAll();
 int dataLen = data.length();
 if (dataLen <= 0) {
 return;
 }
 //更新最后心跳时间
 lastHeartTime = QDateTime::currentDateTime();
 QString buffer = myHelper::ByteArrayToAsciiStr(data);
 int len = buffer.length();
 qDebug() << TIMEMS << "接收数据:" << buffer;
 emit ReceiveData(buffer);
 // //将数据加入处理队列,用线程处理数据
 // mutex.lock();
 // App::Buffer.append(data);
 // mutex.unlock();
 // currentFlag=255;
 // sleep=50;
 if (buffer.startsWith("667") && currentFlag == 0) {
 qDebug() << TIMEMS << "命令解析:" << "握手成功" ;
 isOk = true;
 //握手成功后将心跳间隔改为500毫秒
 timerHeart->setInterval(500);
 emit ReceiveHelloOk();
 //如果未启用自动执行,则将心跳和开机交互完成置为真
 if (!isAuto) {
 isHeart = true;
 allFinsh = true;
 }
 //握手成功后自动执行开机交互命令
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadPsetIDNameAll()));
 }
 } else if (buffer.startsWith("301PST") && currentFlag == 1) {
 if (buffer.length() < 7) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "所有Pset索引返回" ;
 QMap<int, QString> psetIDName;
 QString temp = buffer.mid(6, len - 1);
 QStringList list = temp.split("'");
 int count = list.count() - 1;
 for (int i = 0; i < count; i++) {
 QStringList t = list.at(i).split(":");
 int id = t.at(0).toInt();
 QString name = t.at(1);
 psetIDName.insert(id, name);
 }
 emit ReceivePsetIDNameAll(psetIDName);
 qDebug() << TIMEMS << "命令解析:" << "psetIDName:" << psetIDName;
 } else if (buffer.startsWith("001") && currentFlag == 2) {
 qDebug() << TIMEMS << "命令解析:" << "授权1成功返回" ;
 emit ReceiveAuthor1Ok();
 //握手成功后自动执行开机交互命令
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(Author2()));
 }
 } else if (buffer.startsWith("001") && currentFlag == 3) {
 qDebug() << TIMEMS << "命令解析:" << "授权2成功返回" ;
 emit ReceiveAuthor2Ok();
 //握手成功后自动执行开机交互命令
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadPsetIDCurrent()));
 }
 } else if (buffer.startsWith("332") && currentFlag == 4) {
 if (buffer.length() < 6) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "当前Pset索引返回" ;
 int psetIDCurrent = buffer.mid(3, 3).toInt();
 emit ReceivePsetIDCurrent(psetIDCurrent);
 qDebug() << TIMEMS << "命令解析:" << "psetIDCurrent:" << psetIDCurrent;
 //如果是重发命令确认的回复,则不需要继续执行开机交互命令
 if (isRecheck) { 
 isRecheck = false;
 return;
 }
 //握手成功后自动执行开机交互命令
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(Cooperate()));
 }
 } else if (buffer.startsWith("5691") && currentFlag == 5) {
 qDebug() << TIMEMS << "命令解析:" << "配合成功返回" ;
 emit ReceiveCooperateOk();
 //握手成功后自动执行开机交互命令
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadPsetIDAll()));
 }
 } else if (buffer.startsWith("5710") && currentFlag == 6) {
 qDebug() << TIMEMS << "命令解析:" << "所有已经使用的Pset索引返回" ;
 QList<int> psetIDAll;
 QStringList list = buffer.split(":");
 if (list.count() < 3) {
 return;
 }
 QStringList t = list.at(2).split(";");
 int count = t.count();
 for (int i = 0; i < count; i++) {
 psetIDAll.append(t.at(i).toInt());
 }
 emit ReceivePsetIDAll(psetIDAll);
 qDebug() << TIMEMS << "命令解析:" << "psetIDAll:" << psetIDAll;
 //启动心跳命令
 isHeart = true;
 allFinsh = true;
 } else if (buffer.startsWith("001") && currentFlag == 7) {
 qDebug() << TIMEMS << "命令解析:" << "指定Pset成功返回" ;
 emit ReceiveSelectPset();
 QTimer::singleShot(10, this, SLOT(ReadPsetIDCurrent()));
 isRecheck = true; 
 //延时启动心跳定时器,防止结果未读成功而停止了心跳
 QTimer::singleShot(500, this, SLOT(StartHeart()));
 } else if (buffer.startsWith("113P") && currentFlag == 8) {
 if (buffer.length() < 8) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "Pset参数返回" ;
 QMap<int, QString> config;
 int psetID = buffer.mid(4, 3).toInt();
 QString temp = buffer.mid(7, len - 1);
 QStringList list = temp.split("'");
 int count = list.count() - 1;
 for (int i = 0; i < count; i++) {
 QString t = list.at(i);
 int pID = t.mid(0, 3).toInt();
 QString pValue = t.mid(4, t.length());
 //如果参数号为406则需要转换为正常的日期格式
 //传过来的是从1970年1月1日0时0分0秒到现在经过的秒数
 if (pID == 406) {
 QDateTime d = myHelper::IntToDateTime(pValue.toUInt());
 pValue = d.toString("yyyy-MM-dd HH:mm:ss");
 }
 config.insert(pID, pValue);
 }
 emit ReceivePsetConfig(psetID, config);
 qDebug() << TIMEMS << "命令解析:" << "psetID:" << psetID << "config:" << config;
 qApp->processEvents();
 } else if (buffer.startsWith("001") && currentFlag == 9) {
 qDebug() << TIMEMS << "命令解析:" << "更新Pset准备成功" ;
 emit ReceiveUpdatePsetPrepareOk();
 } else if (buffer.startsWith("001") && currentFlag == 10) {
 qDebug() << TIMEMS << "命令解析:" << "更新Pset成功" ;
 emit ReceiveUpdatePsetOk();
 } else if (buffer.startsWith("00101") && currentFlag == 11) {
 qDebug() << TIMEMS << "命令解析:" << "新建Pset成功" ;
 emit ReceiveNewPsetOk();
 } else if (buffer.startsWith("00101") && currentFlag == 12) {
 qDebug() << TIMEMS << "命令解析:" << "删除Pset成功" ;
 emit ReceiveDeletePsetOk();
 } else if (buffer.startsWith("003")) {
 qDebug() << TIMEMS << "命令解析:" << "心跳应答成功" ;
 emit ReceiveHeartOk();
 //003\x02=003 003\\ACK为有新的结果通知
 if (buffer.startsWith("003\\STX") || buffer.startsWith("003\\ACK")) {
 qDebug() << TIMEMS << "命令解析:" << "有新的拧紧结果可读取" ;
 //立马启动执行读取结果值
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadResultNmDeg()));
 //延时启动心跳定时器,防止结果未读成功而停止了心跳
 QTimer::singleShot(1800, this, SLOT(StartHeart()));
 }
 }
 } else if (buffer.startsWith("113R")) {
 if (buffer.length() < 8) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "拧紧数值结果返回" ;
 int psetID = buffer.mid(4, 3).toInt();
 double nm = 0;
 int nmOk = 1;
 int deg = 0;
 int degOk = 1;
 int id = 0;
 QString strDate = "";
 QString num = "0";
 QString temp = buffer.mid(7, len - 1);
 QStringList list = temp.split("'");
 int count = list.count() - 1;
 for (int i = 0; i < count; i++) {
 QString t = list.at(i);
 int pID = t.mid(0, 3).toInt();
 QString pValue = t.mid(4, t.length());
 if (pID == 100) {
 nm = pValue.toDouble();
 } else if(pID == 101) {
 nmOk = pValue.toInt();
 } else if (pID == 102) {
 deg = pValue.toInt();
 } else if(pID == 103) {
 degOk = pValue.toInt();
 } else if (pID == 300) {
 id = pValue.toInt();
 } else if (pID == 301) {
 strDate += pValue;
 } else if (pID == 302) {
 strDate = QString("%1 %2").arg(strDate).arg(pValue);
 } else if (pID == 305) {
 num = pValue;
 }
 }
 emit ReceiveResultNmDeg(psetID, id, strDate, num, nm, nmOk, deg, degOk);
 qDebug() << TIMEMS << "命令解析:" << "psetID:" << psetID << "结果编号:" << id << "时间:" << strDate << "工具系列号:" << num
 << "扭矩值:" << nm << "扭矩结果:" << nmOk << "角度值:" << deg << "角度结果:" << degOk;
 //立马读取扭矩对时间曲线结果
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadResultNmTimePlot()));
 //延时启动心跳定时器,防止结果未读成功而停止了心跳
 QTimer::singleShot(1800, this, SLOT(StartHeart()));
 }
 qApp->processEvents();
 } else if (buffer.startsWith("123G")) {
 if (buffer.length() < 5) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "扭矩对时间曲线返回" ;
 int psetID = 0;
 int id = 0;
 QString strDate = "";
 QString num = "0";
 double interval = 0;
 int fenzi = 1;
 int fenmu = 1;
 double targetNm = 0;
 double minNm = 0;
 double maxNm = 0;
 QList<double> result;
 QString temp = buffer.mid(4, len - 1);
 QStringList l = temp.split(";");
 if (l.count() < 2) {
 return;
 }
 //取出分号前的数值
 QStringList list = l.at(0).split("'");
 int count = list.count() - 1;
 for (int i = 0; i < count; i++) {
 QString t = list.at(i);
 int pID = t.mid(0, 3).toInt();
 QString pValue = t.mid(4, t.length());
 if (pID == 100) {
 id = pValue.toInt();
 } else if (pID == 101) {
 strDate += pValue;
 } else if (pID == 102) {
 strDate = QString("%1 %2").arg(strDate).arg(pValue);
 } else if (pID == 105) {
 num = pValue;
 } else if (pID == 114) {
 psetID = pValue.toInt();
 } else if (pID == 201) {
 interval = pValue.toDouble();
 } else if (pID == 203) {
 fenzi = pValue.toInt();
 } else if (pID == 204) {
 fenmu = pValue.toInt();
 } else if (pID == 206) {
 targetNm = pValue.toDouble();
 } else if (pID == 210) {
 minNm = pValue.toDouble();
 } else if (pID == 211) {
 maxNm = pValue.toDouble();
 }
 }
 //分号后的数据代表结果
 QString str1 = l.at(1);
 QByteArray ba = myHelper::AsciiStrToByteArray(str1);
 QString str2 = myHelper::ByteArrayToHexStr(ba);
 //保存获取到的扭矩对角度数据
 if (isSaveNm) {
 QString fileName = QString("%1/save/Nm_%2.txt").arg(App::AppPath)
 .arg(QDateTime::currentDateTime().toString("yyyy-MM-dd-HH-mm-ss"));
 QFile file(fileName);
 file.open(QFile::WriteOnly | QFile::Text);
 file.write(str2.toLatin1());
 file.close();
 }
 QStringList tempList = str2.split(" ");
 int currentCount = tempList.count();
 //如果不是2的倍数则长度要减去1
 if ( currentCount % 2 != 0) {
 currentCount = (currentCount - 1);
 }
 //逐个取出扭矩值
 for (int i = 0; i < currentCount; i = i + 2) {
 qint16 value = myHelper::StrHexToShort(QString("%1%2").arg(tempList.at(i)).arg(tempList.at(i + 1)));
 double r = (double)(value * fenzi) / fenmu;
 result.append(r);
 }
 emit ReceiveResultNmTimePlot(psetID, id, strDate, num, interval, targetNm, minNm, maxNm, result);
 qDebug() << TIMEMS << "命令解析:" << "psetID:" << psetID << "结果编号:" << id << "时间:" << strDate << "工具系列号:" << num
 << "间隔:" << interval << "目标扭矩:" << targetNm << "扭矩最小:" << minNm << "扭矩最大:" << maxNm
 << "结果集合:" << result;
 //立马读取角度对时间曲线结果
 if (isAuto) {
 QTimer::singleShot(10, this, SLOT(ReadResultDegTimePlot()));
 //延时启动心跳定时器,防止结果未读成功而停止了心跳
 QTimer::singleShot(1800, this, SLOT(StartHeart()));
 }
 qApp->processEvents();
 } else if (buffer.startsWith("125G")) {
 if (buffer.length() < 5) {
 return;
 }
 qDebug() << TIMEMS << "命令解析:" << "角度对时间曲线返回" ;
 int psetID = 0;
 int id = 0;
 QString strDate = "";
 QString num = "0";
 double interval = 0;
 int fenzi = 1;
 int fenmu = 1;
 double targetDeg = 0;
 double minDeg = 0;
 double maxDeg = 0;
 QList<double> result;
 QString temp = buffer.mid(4, len - 1);
 QStringList l = temp.split(";");
 if (l.count() < 2) {
 return;
 }
 //取出分号前的数值
 QStringList list = l.at(0).split("'");
 int count = list.count() - 1;
 for (int i = 0; i < count; i++) {
 QString t = list.at(i);
 int pID = t.mid(0, 3).toInt();
 QString pValue = t.mid(4, t.length());
 if (pID == 100) {
 id = pValue.toInt();
 } else if (pID == 101) {
 strDate += pValue;
 } else if (pID == 102) {
 strDate = QString("%1 %2").arg(strDate).arg(pValue);
 } else if (pID == 105) {
 num = pValue;
 } else if (pID == 114) {
 psetID = pValue.toInt();
 } else if (pID == 201) {
 interval = pValue.toDouble();
 } else if (pID == 204) {
 fenzi = pValue.toInt();
 } else if (pID == 205) {
 fenmu = pValue.toInt();
 } else if (pID == 229) {
 targetDeg = pValue.toDouble();
 } else if (pID == 220) {
 minDeg = pValue.toDouble();
 } else if (pID == 221) {
 maxDeg = pValue.toDouble();
 }
 }
 //分号后的数据代表结果
 QString str1 = l.at(1);
 QByteArray ba = myHelper::AsciiStrToByteArray(str1);
 QString str2 = myHelper::ByteArrayToHexStr(ba);
 //保存获取到的角度对角度数据
 if (isSaveDeg) {
 QString fileName = QString("%1/save/Deg_%2.txt").arg(App::AppPath)
 .arg(QDateTime::currentDateTime().toString("yyyy-MM-dd-HH-mm-ss"));
 QFile file(fileName);
 file.open(QFile::WriteOnly | QFile::Text);
 file.write(str2.toLatin1());
 file.close();
 }
 QStringList tempList = str2.split(" ");
 int currentCount = tempList.count();
 //如果不是2的倍数则长度要减去1
 if ( currentCount % 2 != 0) {
 currentCount = (currentCount - 1);
 }
 //逐个取出角度值
 for (int i = 0; i < currentCount; i = i + 2) {
 qint16 value = myHelper::StrHexToShort(QString("%1%2").arg(tempList.at(i)).arg(tempList.at(i + 1)));
 double r = (double)(value * fenzi) / fenmu;
 //传过来的值放大了100倍,所以真实显示的值要除以100
 double re = r / 100;
 result.append(re);
 }
 emit ReceiveResultDegTimePlot(psetID, id, strDate, num, interval, targetDeg, minDeg, maxDeg, result);
 qDebug() << TIMEMS << "命令解析:" << "psetID:" << psetID << "结果编号:" << id << "时间:" << strDate << "工具系列号:" << num
 << "间隔:" << interval << "最终角度结果:" << targetDeg << "最终角度最小:" << minDeg << "最终角度最大:" << maxDeg
 << "结果集合:" << result;
 //将心跳重新置为真
 isHeart = true;
 qApp->processEvents();
 }
 //currentFlag = 255;
 //sleep = 50;
}