COMMUNICATION SYSTEM AND COMMUNICATION DEVICE

摘要

A communication system has a first communication device, and a second communication device that conducts wireless communication with the first communication device. The first communication device has a first transmitter that transmits a signal to the second communication device, and a first transmission controller that controls the first transmitter. The second communication device has a first receiver that receives the signal from the first communication device, a measurement part that measures a reception intensity of the signal received by the first receiver, and a determination part that determines whether the signal received by the first receiver is a normal signal. The first transmission controller divides a predetermined portion of a predetermined signal into a plurality of portions when transmitting the predetermined signal.

主权项

1. A communication system comprising:
a first communication device; and a second communication device that conducts wireless communication with the first communication device, wherein the first communication device comprises:
a first transmitter that transmits a signal to the second communication device, anda first transmission controller that controls the first transmitter, wherein the second communication device comprises:
a first receiver that receives the signal from the first communication device,a measurement part that measures a reception intensity of the signal received by the first receiver, anda determination part that determines whether the signal received by the first receiver is a normal signal, wherein the first transmission controller divides a predetermined portion of a predetermined signal into a plurality of portions when transmitting the predetermined signal, and adjusts a transmission intensity of each divided portion such that a change in transmission intensity has a predetermined pattern in the whole predetermined portion of the predetermined signal, wherein the measurement part measures the reception intensity of the predetermined portion of the predetermined signal, and wherein the determination part determines whether the predetermined signal is the normal signal based on whether the change in reception intensity of the predetermined portion of the predetermined signal is matched with the predetermined pattern.