OBSERVATION DEVICE, GPS POSITION OBSERVATION FACILITY, AND GPS POSITION OBSERVATION FACILITY USING THE OBSERVATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an observation device capable of performing a more sure communication and reducing the power consumption. SOLUTION: This observation device 1 comprises a switching means 30 for selectively connecting a serial interface 20 to a satellite cellular phone 40 or cellular phone 50, and a main control part 10 comprising a communication state monitoring means 12 for monitoring the communication state by the satellite cellular phone 40 or cellular phone 50 to output a prescribed line switching command Cin and a switching means control part 11 for drive-controlling the switching means 30 on the basis of the line switching command Cin from the communication state monitoring means 12. According to such a structure, the switching can be performed to selective connect communication equipment having a good communicating state.