읽기 쉬운 방식으로 gpscat의 결과를 출력하기 위해 gpsdecode를 사용하는 방법은 무엇입니까?

USB 직렬 포트를 통해 GPS가 있는 프로세서에 연결되어 있습니다. 내가 하려고 했던 것은 다음을 수행하여 GPS 데이터를 읽는 것입니다.

gpscat /dev/ttyS2 | gpsdecode

그러나 매우 느리고 오랜 시간이 지나면 다음과 같이 출력됩니다.

130 root@gw-0317STLG0067 ~ # gpscat /dev/ttyS2 | gpsdecode            
:(
{"class":"SKY","device":"stdin","vdop":1.20,"hdop":1.20,"pdop":1.80,"satellites":[{"PRN":29,"el":28,"az":79,"ss":39,"used":false},{"PRN":31,"el":18,"az":204,"ss":18,"used":false}]}

프로세스를 종료하면 다음이 출력됩니다.

close failed in file object destructor: 
sys.excepthook is missing 
lost sys.stderr

이것이 올바른 명령입니까? 그렇다면 문제는 무엇입니까?

편집----신규

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