gps输出怎么成了这个样子
$GPRMC,134410.00,A,3414.50860,N,10854.64127,E,0.015,,030314,,,A*75
$GPVTG,,T,,M,0.015,N,0.028,K,A*2D
$GPGGA,134410.00,3414.50860,N,10854.64127,E,1,05,4.84,487.8,M,-27.8,M,,*76
$GPGSA,A,3,01,19,23,11,13,,,,,,,,7.11,4.84,5.21*01
$GPGSV,2,1,08,01,09,175,40,11,33,172,45,13,45,238,44,19,85,134,36*74
$GPGSV,2,2,08,23,27,202,31,27,50,043,,30,35,126,39,42,38,132,35*71
$GPGLL,3414.50860,N,10854.64127,E,134410.00,A,A*6D
$GPRMC,134411.00,A,3414.50853,N,10854.64125,E,0.801,,030314,,,A*7B
$GPVTG,,T,,M,0.801,N,1.483,K,A*24
$GPGGA,134411.00,3414.50853,N,10854.64125,E,1,05,4.84,487.8,M,-27.8,M,,*75
$GPGSA,A,3,01,19,23,11,13,,,,,,,,7.11,4.84,5.21*01
$GPTXT,01,01,00,txbuf alloc*7F
输出了最后一行就不在输出了怎么回事