| 摘要 |
A smart tag with a temperature sensing function is attached to an upper portion of a coffee saucer or an inner side of a holder for a paper cup. The smart tag transmits smart tag data to a smartphone when a mug filled with coffee is placed on the saucer or the coffee is poured in the paper cup. Data communications are performed by Bluetooth, Wi-Fi, etc. Provided is a method for allowing an application of the smartphone, which receives the data, to inform a user of time to drink coffee at a temperature adequate for being taken. An identification code includes a user identification code and a seller identification code. The user identification code is used for recognizing a smartphone of a person who drinks coffee, and the seller identification code is used for recognizing a coffee manufacturer, a coffee franchise, and a coffee seller, and for allowing the application to be only used for a product of a specific seller, thereby helping sales promotion. |
