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Radio communication manner, the 2nd radio media whose maximum communication range is briefer than the radio communication
Radio communication manner, the 2nd radio media whose maximum communication range is briefer than the radio communication
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机译:无线电通信方式,第二通信媒体的最大通信范围比无线电通信要短
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摘要
PROBLEM TO BE SOLVED: To improve a customer gathering effect and to avoid giving uncomfortable feeling to a user. SOLUTION: First, a radio communication part 114 transmits merchandise information. The part 114 receives a purchase request signal from the user existing within a 100 m radius of an automatic vending machine 201 and transmits it to a main control part 101. The part 101 holds all the purchase request signals which are already received, and transmits a radio medium switch signal for switching from the part 114 to an infrared communication part 115 to a switch part 116. The part 116 selects the part 115 and transmits a purchase confirming signal. The part 115 receives a purchase decision signal from the user facing the machine 201 and existing within a 1 m radius and transmits it to the part 101. The part 101 compares all the received purchase request signals and the earliest purchase decision signal to judge coincidence and specifies a portable terminal 202 for making it possible to sell a can beverage.
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