Sale system and controlling method thereof

A sale system, comprising:

• a data acquisition unit, configured to obtain a consumer payment information and withdrawal rights;
• a door;
• a door control unit, configured to unlock the door when the consumer payment information and withdrawal rights is obtained;
• a first image capturing unit, configured to capture an image of a product;
• a determining unit, configured to determine whether the product has been taken according to the image or a sensing information, when the door is closed;
• and
• a payment unit, configured to charge a payment based on the consumer payment information and withdrawal rights, when the product has been taken.

A sale system, comprising:

• a data acquisition unit, configured to obtain a seller payment information and withdrawal rights;
• a door;
• a door control unit, configured to unlock the door when the seller payment information and withdrawal rights is obtained;
• a first image capturing unit, configured to capture an image of a product;
• a determining unit, configured to determine whether the product has been placed according to the image or a sensing information, when the door is closed;
• and
• an archiving unit, configured to create a sales data according to the seller payment information and withdrawal rights, when the product has been placed.