Patent ID: 8613046

Claim:
A far-end control method with a security mechanism including a judgment procedure, for use in a system comprising a host and an I/O control device; said host comprising a first antenna, a first communication unit and a computer; said I/O control device comprising a second antenna, a CPU and a second mobile communication unit; said judging procedure comprising: (a) starting said judging procedure; (b) said first communication unit transmitting an incoming call signal through said first antenna to said second antenna from a PSTN (Public switched telephone network), said second antenna further transmitting said incoming call signal to said CPU through said second mobile communication unit, and said CPU then commanding the host to hang up said incoming call; (c) said CPU judging whether a number of said incoming call matches with a predetermined value; wherein if the number of said incoming call matches with the predetermined value, said judging procedure proceeds to step (d), and if the number of said incoming call does not match the predetermined value, said judging procedure proceeds to step (h); (d) said CPU notifying said second mobile communication unit to activate a mobile internet between said computer and said I/O control device; (e) when said mobile internet connected between said computer and said I/O control device is activated, a far-end control device mutually transmitting information or signals with said computer via said I/O control device and said mobile internet; (f) said CPU judging whether to disconnect said mobile internet connection between said computer and said I/O control device; wherein if said CPU judges that said mobile internet connection between said computer and said far-end control device should be disconnected, said judging procedure proceeds to step (g), and if said CPU judges that said mobile internet connection between said computer and said far-end control device should not be disconnected, said judging procedure proceeds to step (e); (g) said CPU notifying said second mobile communication unit to shut down said mobile internet connected with said computer; and (h) ending said judging procedure; wherein said I/O control device comprises an input unit and an output unit, and a connection between said input and output unit and far-end control device is implemented via a R1232 or a RS485 of a string transmission or a transmission control protocol/internet protocol (TCP/IP) of a network transmission; and wherein said far-end control device is one of a gate inhibition device, an open/close device of water gate and a meter reading device for electricity, water and gas.