GPS+GPRS開發板 ( SIMCOM GPRS模塊 + SIRF StarIII GPS模塊)

   將GPRS開發板和GPS開發板的功能進行了雙向結合，推出了全新的GPS+GPRS開發板，保留了原SIM300W GPRS開發板的全部功能以及GPS開發板的全部功能，突出了GPS信息采集與GPRS信號傳輸的過程，可以實現將接收到的GPS地理信息通過GPRS的方式發到上位機PC端。

基本特點：

    雙頻GSM/GPRS 900/ 1800MHz 或四頻GSM/GPRS 850/ 900/ 1800/ 1900 MHZ
    GPRS (class 10/8) 標準
    GPRS（class B）
    滿足GSM（2/2+）標準
    –Class 4（2W@850/900MHz）
    –Class 1 (1W@1800/1900MHz)
    尺寸：40 mmx33 mmx2.85mm 重量：8g
    AT命令（GSM07.07，07.05以及SIMcom 擴展AT命令集）
    SIM Application toolkit
    工作電壓范圍：3.4V～4.5V 低功耗
    正常工作溫度： -20°C to +55°C
    受限工作溫度：-30°C to -20°C和 +55°C to +80°C
    存儲溫度：-40°C to +85°C

 

下面的GPS模塊的數據協議資料：

格式 NMEA0183 V3.01： GPGGA（1 次／1 秒）、GPGSA（1 次／5 秒）、
GPGSV（1 次／5 秒）、GPRMC（1 次／1 秒）、GPVTG（1 次／1 秒）。

下面是調試模組用串口監控到的數據：

無衛星狀態：

$GPGGA,000355.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*44
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGSV,1,1,00*79
$GPRMC,000355.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*79
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000356.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*47
$GPRMC,000356.026,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,000357.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*46
$GPRMC,000357.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7B
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000358.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*49
$GPRMC,000358.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*74
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000359.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*48
$GPRMC,000359.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*75
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000400.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*43
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGSV,1,1,00*79
$GPRMC,000400.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7E
$GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
$GPGGA,000401.026,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*42
$GPRMC,000401.026,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*7F
$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

有衛星狀態：

$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
$GPRMC,090116.000,A,3958.2846,N,11616.6456,E,0.00,0.00,080110,,,A*66
$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
$GPRMC,090122.000,A,3958.2847,N,11616.6461,E,0.00,0.00,080110,,,A*64
$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數據格式定義為（以數據手冊為準）：

GPS 數據格式
GPRMC（建議使用最小GPS數據格式）

$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11><CR><LF> 
1) 標準定位時間（UTC time）格式：時時分分秒秒.秒秒秒（hhmmss.sss）。 
2) 定位狀態，A = 數據可用，V = 數據不可用。 
3) 緯度，格式：度度分分.分分分分（ddmm.mmmm）。 
4) 緯度區分，北半球（N）或南半球（S）。 
5) 經度，格式：度度分分.分分分分。
6) 經度區分，東（E）半球或西（W）半球。 
7) 相對位移速度， 0.0 至 1851.8 knots 
8) 相對位移方向，000.0 至 359.9度。實際值。 
9) 日期，格式：日日月月年年（ddmmyy）。 
10) 磁極變量，000.0 至180.0。 
11) 度數。 
12) Checksum.(檢查位)

GPGSV（所示衛星格式）

$GPGSV, <1>,<2>,<3>,<4>,<5>,<6>,<7>,<4>,<5>,<6>,<7>,<8><CR><LF> 
1) 天空中收到訊號的衛星總數。 
2) 定位的衛星總數。 
3) 天空中的衛星總數，00 至 12。
4) 衛星編號， 01 至 32。 
5) 衛星仰角， OO 至 90 度。 
6) 衛星方位角， OOO 至 359 度。實際值。 
7) 訊號噪聲比（C/No）， 00 至 99 dB；無表未接收到訊號。 
8) Checksum.(檢查位).

第<4>,<5>,<6>,<7>項個別衛星會重復出現，每行最多有四顆衛星。其余衛星信息會于次一行出現，若未使用，這些字段會空白。

GPGSA（GPS精度指針及使用衛星格式） 
$GPGSA,<1>,<2>,<3>,<3>,,,,,<3>,<3>,<3>,<4>,<5>,<6>,<7><CR><LF>

1)模式 2：M = 手動， A = 自動。 
2)模式 1：定位型式 1 = 未定位， 2 = 二維定位， 3 = 三維定位。 
3) PRN 數字：01 至 32 表天空使用中的衛星編號，最多可接收12顆衛星信息。
4) PDOP-位置精度稀釋 0.5 至 99.9. 
5) HDOP-水平精度稀釋 0.5 to 99.9. 
6) VDOP-垂直精度稀釋 0.5 to 99.9. 
7) Checksum.(檢查位).

GPS固定數據輸出語句(＄GPGGA) 
這是一幀GPS定位的主要數據，也是使用最廣的數據。為了便于理解，下面舉例說明＄GPGGA語句各部分的含義。例1是用GN－77N和筆者開發的軟硬件接口，在筆者所在地接收到的＄GPGGA語句的內容。
例1：＄GPGGA，050901，3931.4449，N，11643.5123，E，1，07，1.4，76.2，M，－7.0，M，，＊65 
其標準格式為：＄GPGGA，(1)，(2)，(3)，(4)，(5)，(6)，(7)，(8)，(9)，M，(10)，M，(11)，(12)＊hh(CR)(LF) 
各部分所對應的含義為： 
(1)定位UTC時間：05時09分01秒 
(2)緯度(格式ddmm.mmmm:即dd度，mm.mmmm分)； 
(3)N/S(北緯或南緯)：北緯39度31.4449分； 
(4)經度(格式dddmm.mmmm：即ddd度，mm.mmmm分)； 
(5)E/W(東經或西經)：東經116度43.5123分； 
(6)質量因子(0=沒有定位，1=實時GPS，2=差分GPS)：1=實時GPS； 
(7)可使用的衛星數(0～8)：可使用的衛星數=07； 
(8)水平精度因子(1.0～99.9)；水平精度因子=1.4； 
(9)天線高程(海平面，－9999.9～99999.9，單位：m)；天線高程=76.2m); 
(10)大地橢球面相對海平面的高度(－999.9～9999.9，單位：m):－7.0m; 
(11)差分GPS數據年齡，實時GPS時無:無; 
(12)差分基準站號(0000～1023)，實時GPS時無:無; 
＊總和校驗域； 
hh 總和校驗數:65 
(CR)(LF)回車，換行。

b.可視衛星狀態輸出語句(＄GPGSV) 
例2：＄GPGSV，2，1，08，06，33，240，45，10，36，074，47，16，21，078，44，17，36，313，42＊78 
標準格式： ＄GPGSV，(1)，(2)，(3)，(4)，(5)，(6)，(7)，…(4),(5)，(6)，(7)＊hh(CR)(LF) 
各部分含義為： 
(1)總的GSV語句電文數；2;
(2)當前GSV語句號:1; 
(3)可視衛星總數:08; 
(4)衛星號:06; 
(5)仰角(00～90度):33度; 
(6)方位角(000～359度):240度; 
(7)信噪比(00～99dB):45dB(后面依次為第10，16，17號衛星的信息); 
＊總和校驗域； 
hh 總和校驗數:78; 
(CR)(LF)回車，換行。 
注：每條語句最多包括四顆衛星的信息，每顆衛星的信息有四個數據項，即： 
(4)－衛星號，(5)－仰角，(6)－方位角，(7)－信噪比。