Abstract: According to one embodiment, a merchandise shelf includes a display panel that displays an image showing a range in which a commodity is displayed, a touch panel for input of an operation correlated with the image, a memory that correlates and stores an ID of the commodity and the range in which the commodity is displayed, and a CPU that changes the range in which the commodity is displayed stored by the memory and changes the image showing the range in which the commodity is displayed by drag operation input to the touch panel.

Abstract: According to an embodiment, a shopping support device has a controller which acquires identification information of a commodity from an electronic shelf tag using a communication unit. The controller acquires commodity information corresponding to the identification information, makes a storage unit store the commodity information, and makes a display display the commodity information.

Abstract: According to one embodiment, a reading apparatus includes a base unit, a first display, a scanner, and a coupling unit. The scanner reads commodity information. The coupling unit couples the first display and the scanner to the base unit to be pivotable integrally around a rotation center axis extending along an up down direction.

Abstract: An autonomous traveling unit is advanced toward a wall such that a charging unit is located on the right side. When a distance to the wall reaches a predetermined value not smaller than a thickness of a first member of the charging unit, the autonomous traveling unit is stopped. In this state, the autonomous traveling unit is rotated by 90° to the right so as to face a plane formed by a second member of the charging unit at the right angle. Then, the autonomous traveling unit is advanced toward the second member of the charging unit, and when a distance to the plane reaches a predetermined value, the autonomous traveling unit is stopped. In this state, the autonomous traveling unit is rotated by 90° to the right such that charging terminals face power supply terminals provided on the first member of the charging unit at the right angle.

Abstract: An autonomous traveling unit is advanced toward a wall such that a charging unit is located on the right side. When a distance to the wall reaches a predetermined value not smaller than a thickness of a first member of the charging unit, the autonomous traveling unit is stopped. In this state, the autonomous traveling unit is rotated by 90° to the right so as to face a plane formed by a second member of the charging unit at the right angle. Then, the autonomous traveling unit is advanced toward the second member of the charging unit, and when a distance to the plane reaches a predetermined value, the autonomous traveling unit is stopped. In this state, the autonomous traveling unit is rotated by 90° to the right such that charging terminals face power supply terminals provided on the first member of the charging unit at the right angle.