Patent ID: 8830311

Claim:
An electronic device for detecting a position of an object, comprising: a storage unit for storing an infrared sensing mode and a capture mode; an input unit for generating input signals in response to a user input; a display unit for displaying information; an infrared capturing unit for capturing infrared signals around the electronic device from an external environment and taking a photo; and a control unit for entering the infrared sensing mode in response to an input signal from the input unit and controlling the infrared capturing unit to capture the infrared signals around the electronic device from the external environment, amplifying the infrared signals and converting the infrared signals into digital signals, evaluating whether part of the infrared signals falls into a predetermined waveband, focusing on an infrared thermal source associated with the object whose infrared signals fall into the predetermined waveband, switching the infrared capturing unit from the infrared sensing mode to the capture mode and taking a photo of a coverage area around the infrared thermal source, processing the photo to identify a position of the infrared thermal source in the photo, and controlling the display unit to display the position of the infrared thermal source in the photo.