51单片机GPS开发板 GPS开发模块(2)

$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32

$GPGGA,000402.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*41

$GPRMC,000402.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7C

$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32

$GPGGA,000403.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*40

$GPRMC,000403.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7D

$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32

$GPGGA,000404.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*47

$GPRMC,000404.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7A

$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32

$GPGGA,000405.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*46

$GPGSA,A,1,,,,,,,,,,,,,,,*1E

有卫星状态：

$GPGGA,090113.000,3958.2847,N,11616.6454,E,1,8,1.00,67.6,M,-6.7,M,,*78

$GPRMC,090113.000,A,3958.2847,N,11616.6454,E,0.00,0.00,080110,,,A*60

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090114.000,3958.2847,N,11616.6456,E,1,8,1.00,67.7,M,-6.7,M,,*7C

$GPRMC,090114.000,A,3958.2847,N,11616.6456,E,0.00,0.00,080110,,,A*65

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090115.000,3958.2846,N,11616.6456,E,1,8,1.00,67.7,M,-6.7,M,,*7C

$GPRMC,090115.000,A,3958.2846,N,11616.6456,E,0.00,0.00,080110,,,A*65

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090116.000,3958.2846,N,11616.6456,E,1,8,1.00,67.8,M,-6.7,M,,*70

13:06:15 $gprmc,130615.00,a,4004.09199,n,11614.49494,e,0.088,,280615,,,a*77。13:06:14 $gprmc,130614.00,a,4004.09192,n,11614.49490,e,0.311,,280615,,,a*7a。13:06:18 $gprmc,130617.50,a,4004.09197,n,11614.49492,e,0.267,,280615,,,a*7b。

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090117.000,3958.2845,N,11616.6457,E,1,8,1.00,67.8,M,-6.7,M,,*73

$GPGSA,A,3,29,15,10,18,09,21,24,27,,,,,1.28,1.00,0.79*08

$GPGSV,3,1,10,24,78,302,38,15,77,207,42,29,36,238,48,10,33,073,24*76

$GPGSV,3,2,10,21,29,310,39,08,22,054,,18,15,276,42,27,14,167,36*7D

$GPGSV,3,3,10,09,05,175,35,40,,,*45

$GPRMC,090117.000,A,3958.2845,N,11616.6457,E,0.00,0.00,080110,,,A*65

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090118.000,3958.2846,N,11616.6457,E,1,8,1.00,67.8,M,-6.7,M,,*7F

$GPRMC,090118.000,A,3958.2846,N,11616.6457,E,0.00,0.00,080110,,,A*69

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090119.000,3958.2846,N,11616.6458,E,1,9,0.85,67.8,M,-6.7,M,,*7C

$GPRMC,090119.000,A,3958.2846,N,11616.6458,E,0.00,0.00,080110,,,A*67

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090120.000,3958.2847,N,11616.6459,E,1,9,0.85,67.8,M,-6.7,M,,*76

$GPRMC,090120.000,A,3958.2847,N,11616.6459,E,0.00,0.00,080110,,,A*6D

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090121.000,3958.2847,N,11616.6460,E,1,9,0.85,67.8,M,-6.7,M,,*7D

$GPRMC,090121.000,A,3958.2847,N,11616.6460,E,0.00,0.00,080110,,,A*66

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090122.000,3958.2847,N,11616.6461,E,1,9,0.85,67.8,M,-6.7,M,,*7F

$GPGSA,A,3,29,15,10,18,09,21,24,08,27,,,,1.14,0.85,0.77*0D

$GPGSV,3,1,10,24,78,302,38,15,77,207,42,29,36,238,48,10,33,073,22*70

$GPGSV,3,2,10,21,29,310,39,08,22,054,21,18,15,276,42,27,14,167,36*7E

$GPGSV,3,3,10,09,05,175,35,43,,,*46

13:06:15 $gprmc,130615.00,a,4004.09199,n,11614.49494,e,0.088,,280615,,,a*77。13:06:22 $gprmc,130622.00,a,4004.09184,n,11614.49464,e,0.459,,280615,,,a*78。13:06:18 $gprmc,130617.50,a,4004.09197,n,11614.49492,e,0.267,,280615,,,a*7b。

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

$GPGGA,090123.000,3958.2848,N,11616.6462,E,1,9,0.85,67.8,M,-6.7,M,,*72

$GPRMC,090123.000,A,3958.2848,N,11616.6462,E,0.00,0.00,080110,,,A*69

$GPVTG,0.00,T,,M,0.00,N,0.00,K,A*3D

GPS数据格式定义为（以数据手册为准）：

GPS 数据格式

GPRMC（建议使用最小GPS数据格式）

$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11><CR><LF>

1) 标准定位时间（UTC time）格式：时时分分秒秒.秒秒秒（hhmmss.sss）。

2) 定位状态，A = 数据可用，V = 数据不可用。

3) 纬度，格式：度度分分.分分分分（ddmm.mmmm）。

4) 纬度区分，北半球（N）或南半球（S）。

5) 经度，格式：度度分分.分分分分。

6) 经度区分，东（E）半球或西（W）半球。

7) 相对位移速度， 0.0 至 1851.8 knots

8) 相对位移方向，000.0 至 359.9度。实际值。

9) 日期，格式：日日月月年年（ddmmyy）。

10) 磁极变量，000.0 至180.0。

11) 度数。

12) Checksum.(检查位)

GPGSV（所示卫星格式）

$GPGSV, <1>,<2>,<3>,<4>,<5>,<6>,<7>,<4>,<5>,<6>,<7>,<8><CR><LF>

1) 天空中收到讯号的卫星总数。

2) 定位的卫星总数。

3) 天空中的卫星总数，00 至 12。

4) 卫星编号， 01 至 32。

5) 卫星仰角， OO 至 90 度。

6) 卫星方位角， OOO 至 359 度。实际值。

7) 讯号噪声比（C/No）， 00 至 99 dB；无表未接收到讯号。

8) Checksum.(检查位).

但这种方法有个要求，如果要统计的字段数据在报表里面是重复出现的，那么这种统计数是无效的，没有意义的，比如：流水账清单的报表一般任务量会重复出现那么这个字段就没有必要统计，否则可能要用sql来实现统计。因为，并不是所有的表都要有id这个字段，比如，我们建一个学生表，没有唯一能标识学生的id，怎么办呢，学生的名字、年龄、班级都可能重复，无法使用单个字段来唯一标识，这时，我们可以将多个字段设置为主键，形成复合主键，这多个字段联合标识唯一性，其中，某几个主键字段值出现重复是没有问题的，只要不是有多条记录的所有主键值完全一样，就不算重复。9. 在逗号分隔开的每个字段中,前面的空白和后面的空白会被忽略,但单个字段内部的空白会被保留,例如, aaa, bbb bbb ,ccc 我们看到有三个字段,其中第二个字段前面,中间,后面均有空白,但csv解析器应该只保留中间的空白,即bbb bbb,类似。

GPGSA（GPS精度指针及使用卫星格式）

$GPGSA,<1>,<2>,<3>,<3>,,,,,<3>,<3>,<3>,<4>,<5>,<6>,<7><CR><LF>

1)模式 2：M = 手动， A = 自动。

2)模式 1：定位型式 1 = 未定位， 2 = 二维定位， 3 = 三维定位。

3) PRN 数字：01 至 32 表天空使用中的卫星编号，最多可接收12颗卫星信息。

4) PDOP-位置精度稀释 0.5 至 99.9.

5) HDOP-水平精度稀释 0.5 to 99.9.

6) VDOP-垂直精度稀释 0.5 to 99.9.

7) Checksum.(检查位).

GPS固定数据输出语句(＄GPGGA)

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