Ignore invalid GPS data sent from peer node

[sayanee]

Actual data

Example of corrupted GPS data received:

282820: Received data 1.49�04����ҙ��?0����<3 from 0xbb to 0xaa
284130: Send data 1.40841162,103.91712189 from 0xaa to 0xbb
284135: Haversine distance: 11384.310 km 0s ago

Haversine distance of 11384.310 km is invalid

Possible solution

Use CRC library with format latitude,longitude,CRC to send data to peer node