gpsinfo.h

GPS信号强度

// GpsInfo.h: interface for the CGpsInfo class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_GPSINFO_H__FC62A824_F820_11D6_B2F9_008048D8517E__INCLUDED_)
#define AFX_GPSINFO_H__FC62A824_F820_11D6_B2F9_008048D8517E__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


// define the message sent to update() of each view
// 0 is reserved for generic update use
#define	GPS_SYSTEM_INFO		1
#define GPS_NMEA_INFO		2
#define GPS_DEBUG_INPUT		3
#define GPS_DEBUG_OUTPUT	4
#define GPS_UNKNOWN_INPUT	5

// for the use of infomask
#define GPS_INFOMASK_POSITION_VALID		1
#define GPS_INFOMASK_SATELLITE_VALID	2
#define GPS_INFOMASK_DEBUG_VALID		4

// NMEA type ID
#define	GPS_NMEA_TYPE_GPGGA			0
#define	GPS_NMEA_TYPE_GPGLL			1
#define	GPS_NMEA_TYPE_GPGSA			2
#define	GPS_NMEA_TYPE_GPGSV			3
#define	GPS_NMEA_TYPE_GPRMC			4
#define	GPS_NMEA_TYPE_OTHERS		6

// Satellite Status
#define SAT_STATUS_NOSIGNAL			0
#define SAT_STATUS_RECEIVED			1
#define SAT_STATUS_FIXED			2


#define	STR_CRLF					"\r\n"
#define GPS_TOTAL_CHANNEL_NUM		16

struct GPSCHANNELINFO
{
	int		iSatId;
	int		iElevation;
	int		iAzimuth;
	int		iSNR;
};


class CGpsInfo : public CObject  
{
public:
	int NmeaTypeId(CString strNmeaId);
	void ParseDebugInfo(CString strInfo);
	void ParseNmeaInfo(CString strInfo);
	int GetInfoType();
	void SetInfoLine(CString strInfo);
	void SetOutputLine(CString strInfo);
	CGpsInfo();
	virtual ~CGpsInfo();

	CString		m_strGpsInfo;		// the string input from serial port
	CString		m_strGpsOutput;		// the string output as system message or debug string

	double		m_dUtcTime;
	int			m_dUtcDate;
	double		m_dLatitude;
	double		m_dLongitude;
	double		m_dAltitude;
	double		m_dGeoidSeparation;
	double		m_dSpeedGnd;
	double		m_dCourseGnd;
	int			m_iNumSatUsed;
	BOOL		m_bPositionFix;
	GPSCHANNELINFO m_ChannelInfo[GPS_TOTAL_CHANNEL_NUM];
	long		m_iInfoMask;

protected:
	// privately used in GPGSV
	int			m_iCountSatsGot;
	int			m_iTotalMsgs;
	BOOL		m_bGsvMsgStarted;

	void GetGpsFields(CArray <CString, CString&> &GpsFieldsArr, CString strInfo);
};

#endif // !defined(AFX_GPSINFO_H__FC62A824_F820_11D6_B2F9_008048D8517E__INCLUDED_)