WIRELESS COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent out-of-synchronization caused by time lag due to a frequency-temperature characteristic of a timer means for counting an intermittent reception interval.

SOLUTION: When an ambient temperature detected by a temperature detecting section 8 varies by a predetermined value or more after the ambient temperature is detected by the temperature detecting section 8 when a control section 1 of slave stations TR2 to TR4 has corrected the time lag detected from a synchronizing signal, the control section 1 transmits a wireless signal including a message requesting transmission of a synchronizing signal to a master station TR1 from a wireless transmission/reception section 2. Upon receiving a transmission request message of the synchronizing signal, the control section 1 of a master station TR1 transmits the synchronizing signal from the wireless transmission/reception section 2. Therefore, the control section 1 of the slave stations TR2 to TR4 can prevent out-of-synchronization by detecting and correcting the time lag caused by the variation in the ambient temperature based on the synchronizing signal transmitted from the master station TR1.

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