Self-Service Method and Device

A self-service device, applicable to a shopping mall provided with a plurality of shelves and a plurality of shopping carts, wherein each of the shelves is provided with a camera, the shopping carts are respectively pre-provided with different electronic tags, and the different electronic tags correspond to different IDs, the device comprising:

• an acquiring module configured to acquire, by the camera of each of the shelves, video data associated with the shopping cart which is away from the shelf at a distance less than a preset value;
• a determining module configured to determine, based on identification of the video data, whether an article is being placed into the shopping cart;
• an associating module configured to acquire the ID of the shopping cart, determine the placed article, and associate the ID with the article, if it is determined that an article is being placed into the shopping cart;
• a displaying module configured to display to a user a total sum of all articles associated with the ID, when detecting the shopping cart corresponding to the ID is located in a preset payment area of the shopping mall;
• and
• an executing module configured to execute a permitting procedure for allowing the shopping cart corresponding to the ID to pass, upon reception of a message fed back from the payment area and indicating that the total sum corresponding to the ID has been cleared.