基于Qt的车载GPS监控系统（4）系统状态

基于Qt的车载GPS监控系统（4）系统状态

系统状态界面

头文件

#ifndef SHOW_H
#define SHOW_H
#include <QtGui>
#include"dht9000.h" //配置系统头文件

class ShowDialog : public QDialog
{
Q_OBJECT
public:
ShowDialog(QWidget *parent=0);
public slots:
void showState();   //更新系统状态SLOTS
protected:
struct st_sys_dev g_dev[1]; //配置文件结构体
private:
QLabel *labelBg;    //设置窗口背景label
QLabel *labelTime;  //时间
QLabel *labelTemp;  //温度
QLabel *labelTmTime;//保鲜时长
QLabel *labelGps;   //GPS定位信息
QLabel *labelTired; //驾驶时长
QLabel *labelSpeed; //即时车速

QLineEdit *lineTitle;
QLineEdit *lineTime;
QLineEdit *lineTemp;
QLineEdit *lineTmTime;
QLineEdit *lineGps;
QLineEdit *lineTired;
QLineEdit *lineSpeed;

QToolButton *toolButton;//返回按键
};
#endif // SHOW_H

配置头文件

#ifndef GP9000_H
#define GP9000_H
#include<unistd.h>
#include<string.h>
#include<stdio.h>
#include<fcntl.h>      /*文件控制定义*/
#include<termios.h>    /*PPSIX终端控制定义*/

#define ON          1
#define OFF         0
#define CONFIG_FILE     "g9.cfg"
#define MAX_SYS_USER_NUM 3
#define MAX_RECORD  20      //温湿度最大的记录条数N  (N+1)
#define LOG_TIME    5       //日志记录间隔(分)
#define DEF_T_UPP   30      //默认温度上限(C)
#define DEF_T_LOW   5       //默认温度下限(C)
#define DEF_T_SET   5       //默认温度回差(C)
#define DEF_M_TIME  5       //默认检测间隔时间(s)

#define SYS_NAME    "GP9001"    //系统名称
#define SYS_ID      9001        //系统ID号
#define MENU_BUF_SIZE   64

int make_default_config(struct st_sys_dev * dev);
int save_dev(struct st_sys_dev * dev);
int load_dev(struct st_sys_dev * dev);
int init_com(int fd);

//时间
struct st_date_time{
int year;
int month;
int day;
int hour;
int minute;
int second;
};

//GPS信息
struct st_gps_info{
double  latitude;                       //经度
double  longitude;                      //纬度
float   speed;                          //速度
float   direction;                      //航向
unsigned char NS;
unsigned char EW;
};

//报警参数设置
struct st_alarm_set{
char temp_upper;//温度上限
char temp_lower;//温度下限
char temp;
char temp_change_set;//温度回差
char monitor_time;//检测间隔时间
};

//用户帐号信息
struct st_user{
char    name[8];            //帐号名
char    passwd[8];          //密码
int     purview;            //权限
int     enable;             //启用标志
};

//记录内容:序号 日期 时间 温度 湿度: 2010/10/23 12:34 23 65
struct st_log_data{
float log_temp;             //温度
float log_humi;             //湿度
char  state;                //记录报警状态
char  date[10];
char  time[8];
};

//系统设置
struct st_sys_info{
char supplier[10];           //制造商编号
char hd_ver[10];             //硬件版本号
char sw_ver[10];             //软件版本号
char serial[10];             //设备生产系列号
char manu_data[10];      //Manufacture date
};

//系统总体数据结构
struct st_sys_dev{
struct st_sys_info    sys_info; //系统基本信息
struct st_alarm_set   alarm_set;//湿温度报警
struct st_gprs        gprs_set; //gprs模块设置
struct st_user        user[MAX_SYS_USER_NUM];//用户设置
struct st_log_data    logd[MAX_RECORD];
int                   log_time; //记录间隔时长
int                   log_index;//记录下标
int                   log_count;//有效记录总数
};

#endif // GP9000_H

系统状态实现程序

#include<QDebug>
#include"show.h"
#include"dht9000.h"

ShowDialog::ShowDialog( QWidget *parent)
: QDialog( parent)
{
load_dev(g_dev);

//计时器对象，1秒钟发送一个timeout()信号，调用showState()函数
QTimer *timer = new QTimer(this);
timer->start(1000);
connect(timer, SIGNAL(timeout()), this, SLOT(showState()));

this->setMinimumSize(800,480);
this->setMaximumSize(800,480);

//窗口标题
this->setWindowIcon(QPixmap( ":/images/1.png") );
this->setWindowTitle(tr("GP9001车载GPS监控系统"));
//窗口背景
labelBg = new QLabel(this);
labelBg->setGeometry(QRect(0, 0, 800, 480));
labelBg->setPixmap(QPixmap(":/images/9001bg.jpg"));
labelBg->setScaledContents(true);
//窗口功能标题
lineTitle = new QLineEdit(this);
//设置显示数字字体大小
QFont font = lineTitle->font();
font.setPointSize(font.pointSize() + 5);
lineTitle->setFont(font);
lineTitle->setText(tr("系统状态"));
lineTitle->setReadOnly(true);
lineTitle->setAlignment(Qt::AlignHCenter|Qt::AlignVCenter);
lineTitle->setGeometry(QRect(300, 110, 200, 35));
//获取系统时间
QTime time = QTime::currentTime();
QString textTime = time.toString("hh:mm:ss A");

labelTime= new QLabel(this);
labelTime->setText(tr("系统时间："));
labelTime->setGeometry(QRect(80, 200, 80, 25));

lineTime = new QLineEdit(this);
lineTime->setGeometry(QRect(180, 200, 180, 25));
lineTime->setReadOnly(true);
lineTime->setAlignment(Qt::AlignHCenter);
lineTime->setText(textTime);

labelTemp = new QLabel(this);
labelTemp->setText(tr("车厢温度："));
labelTemp->setGeometry(QRect(80, 250, 80, 25));

lineTemp = new QLineEdit(this);
lineTemp->setGeometry(QRect(180, 250, 180, 25));
lineTemp->setReadOnly(true);
lineTemp->setAlignment(Qt::AlignHCenter);
lineTemp->setText(QString::number(15.55,'f',2)+tr("℃"));

labelTmTime = new QLabel(this);
labelTmTime->setText(tr("保鲜时长："));
labelTmTime->setGeometry(QRect(80, 300, 80, 25));

lineTmTime = new QLineEdit(this);
lineTmTime->setGeometry(QRect(180, 300, 180, 25));
lineTmTime->setReadOnly(true);
lineTmTime->setAlignment(Qt::AlignHCenter);
lineTmTime->setText(QString::number(3)+tr("小时")+QString::number(22)+tr("分"));

labelGps= new QLabel(this);
labelGps->setText(tr("卫星定位："));
labelGps->setGeometry(QRect(420, 200, 80, 25));

lineGps = new QLineEdit(this);
lineGps->setGeometry(QRect(520, 200, 180, 25));
lineGps->setReadOnly(true);
lineGps->setAlignment(Qt::AlignHCenter);
lineGps->setText(tr("经度：123.44 纬度：34.54"));

labelTired = new QLabel(this);
labelTired->setText(tr("行驶时长："));
labelTired->setGeometry(QRect(420, 250, 80, 25));

lineTired = new QLineEdit(this);
lineTired->setGeometry(QRect(520, 250, 180, 25));
lineTired->setReadOnly(true);
lineTired->setAlignment(Qt::AlignHCenter);
lineTired->setText(QString::number(3)+tr("小时")+QString::number(22)+tr("分"));

labelSpeed = new QLabel(this);
labelSpeed->setText(tr("即时速度："));
labelSpeed->setGeometry(QRect(420, 300, 80, 25));

lineSpeed = new QLineEdit(this);
lineSpeed->setGeometry(QRect(520, 300, 180, 25));
lineSpeed->setReadOnly(true);
lineSpeed->setAlignment(Qt::AlignHCenter);
lineSpeed->setText(QString::number(12.55,'f',2)+tr("公里/小时"));

toolButton = new QToolButton(this);
toolButton->setGeometry(QRect(350, 360, 100, 100));
toolButton->setText( tr( "返  回" ) );
toolButton->setIcon( QPixmap( ":/images/6.png") );
toolButton->setIconSize( QPixmap( ":/images/6.png").size() );
toolButton->setAutoRaise( TRUE );
toolButton->setToolButtonStyle( Qt::ToolButtonTextUnderIcon);
connect(toolButton,SIGNAL(clicked()),this,SLOT(accept()));
}

void ShowDialog::showState()
{
QTime time = QTime::currentTime();
QString textTime = time.toString("hh:mm:ss A");
lineTime->setText(textTime);

float temp;
temp = rand()%100;
lineTemp->setText(QString::number(temp,'f',2));

int tem_max,tem_min;
tem_max = g_dev->alarm_set.temp_upper;
tem_min = g_dev->alarm_set.temp_lower;

//判断一下极限值是否报警
QPalette pal = lineTemp->palette();//调色板对象
QColor color;
if(temp>tem_max || temp<tem_min){
color = QColor(Qt::red);
}else{
color = QColor(Qt::green);
}
pal.setColor(QPalette::Base, color);//设置控件背景色
lineTemp->setPalette(pal);//设置对象调色板
lineTemp->update();//更新对象

}