| 20110071668 | Vending machine monitoring system and its monitoring method - A vending machine monitoring method used in a vending machine monitoring system, which includes an automatic vending machine and a monitoring system that is attached to the automatic vending machine and uses a microprocessor to read in data signals transmitted between the main controller and peripheral apparatus (card-slide unit, bill acceptor, license recognition unit and coin slot unit) of the automatic vending machine through a connection interface, to process fetched data signals into waveform signals, to indicate any error message through an indicator light module, and to report processed waveform signals to an external remote system through a transmission module for display and further analysis and check of income. | 03-24-2011 |