| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that inexpensively constructs a communication system that reduces influence from another communication system using the same frequency band and enhances the secrecy of data.SOLUTION: Time slots of "two seconds for a regular case" and "two seconds for when needed" follow a frequency hopping pattern that makes a circuit by 14 hops, and hop at every 6 seconds in tune with each time slot between communication channels starting from a communication channel number 5 as a start channel. In addition, a time slot of "two seconds for P2P" is fixed to a communication channel number 4. Furthermore, hopping of an encryption key has a period that makes a circuit by 17 hops like Hop 1 to Hop 17 as illustrated in the time slots of "two seconds for a regular case" and "two seconds for when needed," and hops at every 6 seconds in tune with each time slot between communication channels. |
