基於百度地圖Web API的物聯設備調試工具(一)

該工程源於一個測試工具的開發, 涉及到串口收發, 網絡數據收發, Qt與Js的交互, 經緯度距離計算等.

效果如下:

串口相關

//串口輪詢
void Frame::fillPortsInfo()
{
    static const QString blankString = QObject::tr("N/A");
    QString description;
    QString manufacturer;
    QString serialNumber;
    int i = 0;
    ui->comboBoxSerial->clear();
    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts())
    {
        QStringList list;
        description = info.description();
        manufacturer = info.manufacturer();
        serialNumber = info.serialNumber();
        list << info.portName()
             << (!description.isEmpty() ? description : blankString)
             << (!manufacturer.isEmpty() ? manufacturer : blankString)
             << (!serialNumber.isEmpty() ? serialNumber : blankString)
             << info.systemLocation()
             << (info.vendorIdentifier() ? QString::number(info.vendorIdentifier(), 16) : blankString)
             << (info.productIdentifier() ? QString::number(info.productIdentifier(), 16) : blankString);

        QString portName = list.first();
        ui->comboBoxSerial->insertItem(i, portName);
        i++;
    }
}

//打開串口
void Frame::openSerialPort()
{
    serial->setPortName(ui->comboBoxSerial->currentText());
    serial->setBaudRate(QSerialPort::Baud115200);
    serial->setDataBits(QSerialPort::Data8);
    serial->setParity(QSerialPort::NoParity);
    serial->setStopBits(QSerialPort::OneStop);
    serial->setFlowControl(QSerialPort::NoFlowControl);
    if (serial->open(QIODevice::ReadWrite))
    {
            ui->console->setEnabled(true);
            ui->console->setLocalEchoEnabled(true);
            ComFlag = true;
            return;
    }
    else
        ComMcuFlag = false;
}

//讀串口

connect(serial, SIGNAL(readyRead()), this, SLOT(SerialReadData()));

void Frame::SerialReadData()
{
    QByteArray data = serial->readAll();
    ui->console->putData(data);
}

//寫串口
void Frame::SerialWriteData(const QByteArray &data)
{
    serial->write(data);
}

網絡相關

//略

Web相關

TCP Server接收到移動終端上傳得位置數據(GPS, LBS, WIFI等)後, 解析相關數據, 構建Web請求字符串, 發送Http請求.

QNetworkRequest request;
QString reqUrl;
QString infoStr;

QNetworkAccessManager* manager;

//發送GPS請求
reqUrl.sprintf("http://api.map.baidu.com/geoconv/v1/?coords=%.6f,%.6f&ak=申請的key&output=xml", lng.a, lat.a);
infoStr=QString("設備:%1 電量:%2 %3").arg(imei).arg(dev_voltage).arg(dev_utc);
request.setAttribute(QNetworkRequest::User,infoStr);
request.setUrl(QUrl(reqUrl));
manager->get(request);

//發送LBS請求
reqUrl.sprintf("http://api.gpsspg.com/bs/?oid=5039&key=4153C361801F6CA3A06087702FD1994F&bs=%x,%x,%d,%d&to=2&output=xml",
                    mcc.a, mnc, lac.a, ceilid.a);

infoStr=QString("設備:%1 電量:%2 %3").arg(imei).arg(dev_voltage).arg(dev_utc);
request.setAttribute(QNetworkRequest::User,infoStr);
request.setUrl(QUrl(reqUrl));
manager->get(request);

//Http響應處理
connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(httpReplyFinish(QNetworkReply*)));

void Frame::httpReplyFinish(QNetworkReply* reply)
{
    QString result = reply->readAll().simplified();
    QString url    = reply->url().toString();

    QVariant userData = reply->request().attribute(QNetworkRequest::User);
    QString userDataStr = userData.value<QString>();

    if (url.contains("api.gpsspg.com"))
    {
        //在這裏解析返回的addrsss, roads, latitude, longitude略

        //定位並添加標註
        JyGAPI->GisShowAddressWithTitle(lat.a,lng.a, userDataStr);

        itemStr.sprintf("L: %.6f,%.6f", lat.a, lng.a);
        pos_vec.push_back(itemStr);
        item = new QStandardItem(itemStr);
        standardItemModel->setItem(pos_vec.size()-1, item);
    }

    else if (url.contains("api.map.baidu.com"))
    {
        //在這裏解析糾偏後的經緯度, 略

        //定位並添加標註
        JyGAPI->GisShowAddressWithTitle(dlat,dlng, userDataStr);

        itemStr.sprintf("G: %.6f,%.6f", dlat, dlng);
        pos_vec.push_back(itemStr);
        item = new QStandardItem(itemStr);
        standardItemModel->setItem(pos_vec.size()-1, item);
    }
}

定位相關, Qt與Js的交互, 經緯度距離計算等見 基於百度地圖Web API的物聯設備調試工具(二)