The invention discloses a self-service vending
machine based on sensor switches, comprising a counter, a counter door, an electrical lock, a controller, a
network communication module, sensor switchesand an identification module; a plurality of commodity stations are arranged in the counter; each commodity
station is provided fitted with one sensor switch and allows only one commodity to be placed thereon; the front of the counter is fitted with the identification module; the controller is mounted in the counter; the electrical lock, the sensor switches and the
network communication module are connected with the controller. When using the self-service vending
machine, customers may open the counter door to select commodities on their own and may put unsatisfied ones back, customers may
gain more visual feeling about the commodities and less uncertainty on the commodities and
gain greater desire of purchase; compared with self-service vending machines based on RFID (
radio frequency identification) technique, the self-service vending
machine based on the sensor switches has the advantages that pasting an RFID tag to each commodity is not required, RFID tag cost can be decreased, commodities selected by customers can be recognized at a higher rate, and negative influence on mistaken payments is relieved.