The present invention installs a controller in the pregnant women's care seat so that pregnant women can conveniently use the pregnant women's care seat installed in public transportation, so that the pregnant woman can recommend concessions with LED, voice, vibration, etc. using a smartphone app after boarding the subway. When a pregnant woman is seated, the LED lights up to indicate that she is a pregnant woman, so that she can sit without noticing, and provides useful policies, information, and advertisements for pregnancy/childrearing during the boarding period, and outputs an alarm when approaching the destination. It relates to a concession guidance system for pregnant women. In order to achieve such an object, the present invention receives an ID after entering a phone number and a smartphone MAC address on which an app is to be installed in a server after confirmation of pregnancy at an existing pregnant woman badge issuer such as a health center, hospital, subway station, etc. After installing the app, input the ID when running the app for the first time, and only when the MAC address and phone number stored in the server match the information of the current smartphone, the app is operated and authentication is completed. After authentication is completed, the controller installed in the pregnant woman's seat and the smartphone app communicate wirelessly, requesting concessions through the LED part, vibration part, and speaker part, and automatically turn on the LED part when seating to notify that the pregnant woman is pregnant. The LED unit is turned off, and pregnancy/parenting-related information, policies, and advertisements are provided to the smartphone by the controller during the boarding period.
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