Approach notification device, approach notification system, approach notification method

摘要

PROBLEM TO BE SOLVED: To realize an approach notification device having a simple configuration with low power consumption. An approach notification device 20 includes an antenna 21, a source identification unit 23, a notification information generation unit 24, and a notification unit 25. The antenna 21 receives high frequency signals of a plurality of communication bands. The source specifying unit 23 specifies the type of the moving body of the source of the received signal by using the frequency of the received signal. The notification information generation unit 24 generates notification information including notification of the approach of the specified moving object to a specific position. The notification unit 25 notifies the notification information to the outside. [Selection diagram] Fig. 1