Abstract: An electronic price indicator according to an embodiment includes a display displaying product information, an NFC module configured to communicate with a user terminal, a Bluetooth module configured to communicate with the user terminal, and a processor configured to control the display to display the product information received from the user terminal through the Bluetooth module. The processor is further configured to release a sleep mode when receiving an interrupt from the user terminal through the NFC module, and perform Bluetooth communication with the user terminal by initiating a scan for a predetermined period of time to receive an advertising signal from the user terminal.

Abstract: An apparatus of improving position accuracy of a Light Detection and Ranging (LIDAR) motor may include a motor that rotates at a rotation speed set by a user and a controller that generates a parameter depending on the rotation speed for determining a position of the motor within a preset horizontal angle of view and determines whether the motor is in a normal operation state and the position of the motor, based on the parameter.

Abstract: Disclosed is a folding floatation device that is folded at the time when an amphibious vehicle is driven on the water, thereby providing improved safety and increased driving speed to the amphibious vehicle and a method for providing additional buoyance to the amphibious vehicle at the time of driving on the water by using the folding floatation device. According to the present invention, there are provided a folding floatation device with the lower portion opened, a folding flotation device with the upper portion opened and a closed folding flotation device, each of which is disposed at an appropriate location of the vehicle body, such that each floatation device is folded during driving on land and unfolded only during driving on the water, thereby providing additional buoyance to the amphibious vehicle.