Detection device, computer and detection method

Abstract

The invention provides a detection device, a computer and a detection method. The detection device comprises a detection unit, an image acquisition unit, a first judgment unit, a second judgment unit and a first control unit, wherein the detection unit is used for acquiring non image information in a detection area; the image acquisition unit is used for acquiring image information in the detection area; the first judgment unit is used for judging whether a target exists in the detection area or not to obtain a first judgment result according to the non image information; the second judgment unit is used for judging whether the target exists in the detection area or not to obtain a second judgment result according to the image information when the first judgment result indicates that no target exists in the detection area; the first control unit is used for controlling a computer system to be switched to a second working mode when the second judgment result indicates that no target exists in the detection area and the computer system is in a first working mode; the power consumption of the computer system in the first working mode is larger than the power consumption of the computer system in the second working mode. The detection device can accurately detect whether the target exists in front of the computer or not.

Description

technical field [0001] The invention relates to the field of computers, in particular to a detection device, a computer and a detection method. Background technique [0002] When the user leaves the currently used computer to deal with other things, if the computer system is still in the normal working mode, there is a problem of wasting power consumption. If the computer system can be controlled to automatically sleep or automatically wake up according to the user's usage scenario (leave or return), the control of the computer will be more intelligent and convenient, and the power consumption of the computer system can be effectively saved. [0003] In the prior art, an active infrared sensor can be installed on the computer to detect whether there is a person in front of the computer. The active infrared sensor includes two parts, the transmitting end and the receiving end. The transmitting end and the receiving end are respectively arranged on both sides of the user. Det...

AI Technical Summary

Problems solved by technology

However, active infrared sensors cannot correctly distinguish between people and other objects in front of the computer, and the chance of false positives is high

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