Mobile terminal and system

A system comprising:

• a mobile terminal configured to:
• obtain, through a camera, an image of an inside of a dishwasher,
• transmit, to a server, the obtained image,
• receive, from the server, object information in response to the transmitted image, and
• provide, based on the received object information, washing guide information regarding the dishwasher;
• and
• a server configured to:
• receive, from the mobile terminal, the image,
• obtain the object information from the image using an object information inference model based on regions with convolution neural networks (R-CNN), and
• transmit, to the mobile terminal, the obtained object information,
• wherein the object information includes at least one of a type of one or more objects, an amount of the one or more objects, a position of the one or more objects, a posture of the one or more objects, a material of the one or more objects, and a mask ratio indicating a ratio of the one or more objects to a total area of the image,
• wherein the mobile terminal is configured to determine a washing course as a partial washing mode based on (i) an area occupied by the one or more objects in a first compartment of the inside of the dishwasher and (ii) an area occupied by the one or more objects in a second compartment of the inside of the dishwasher,
• wherein the mobile terminal is configured to, based on (i) the area occupied by the one or more objects in the first compartment being less than one-half of the first compartment and (ii) the area occupied by the one or more objects in the second compartment being greater than one-half of the second compartment, determine the washing course as the partial washing mode,
• wherein the mobile termina is configured to, in response to the transmitted, receive, from the server, detergent information, and
• wherein detergent information includes a name of detergent and an amount of detergent used for each course.