KR101636903B1 - Electronic device including motion sensing camera and operating method according to motion sensing - Google Patents

Abstract

An electronic device according to the present invention includes: a low-power sensor for detecting whether an object moves; A camera which is activated when the motion of the object is detected from the low power sensor and recognizes the motion of the object; And an operation unit configured to perform a predetermined operation when the operation of the object recognized by the camera satisfies a predetermined condition, wherein the power consumption of the low-power sensor is smaller than the power consumption of the camera. Accordingly, an electronic device capable of supplying power to the camera only when a low-power sensor senses motion by controlling power of a camera using a low-power sensor, and a method of operating an electronic device according to motion detection are provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device including a motion detection camera and an operation method of the electronic device according to motion detection.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an electronic apparatus and a method of operating an electronic apparatus according to motion detection, and more particularly, to an electronic apparatus including an electronic apparatus including a motion detection camera and a motion detection camera for detecting motion.

Recently, cameras that recognize the motion of objects have been actively developed. This is a market change of smart information appliances for users' convenience. For example, a camera capable of recognizing motion such as a user's gesture recognition (a camera that inputs a general image or a depth information camera that inputs a distance between a camera and an object) . The camera senses the user's motion and delivers the input (e.g., channel change or volume change according to the user's gesture) to the television in accordance with the motion pattern, and the television can perform the corresponding motion process.

Recently, the technology called Internet of Things is getting popular. This technology is a technology that connects the internet with a structure that can acquire sensors or data to objects. It is estimated that the number of things using the Internet technology of things until 2009 is 900 million, but this number will reach 26 billion by 2020, More efficient technology in the field continues to be required. One of the three major technologies of the Internet of things, which is a part to be commercialized according to the sensing technology, should be considered. As another example, there may be a device for detecting a distance between an object and a camera using a depth camera that can obtain depth information of the object and performing related processing

A device having such an operation, a camera, or an information appliances performs a process according to the motion of the object (for example, changing the channel according to the motion of the object, etc.). Therefore, even if the related device is inactivated (System OFF), the algorithm for performing the processing according to the power and movement of the electronic device for detecting the motion or the state in the device must be always activated and the process must be performed Even if it is an operation, the device related to the operation, the camera and the motion recognition process must be ON and continue to perform the process). If the partial process continues to be activated all the time, the standby power consumption is extremely high even in the standby state when the product is not turned on.

Consumer demand for low-power products is on the rise due to an increase in electricity rates in recent years, when demand for electricity is excessively high. However, as mentioned above, when the camera is always turned on for the operation recognition, standby power becomes very large, which causes a problem in supplying the power saving device to the consumer.

The present invention can be applied to a camera and a partial device that operate in real time for detecting the movement or the state of an object even when the system of the smart information appliance is in a standby state (E.g., a device that must always perform the process of continuously providing power to the device).

In one embodiment of the present invention, a low-power sensor (wide-range low-power ultrasonic sensor or wide-range low-power infrared sensor; low-power sensor does not need accurate distance or accurate motion detection between the device and the device). Only the existence or disappearance of an object may be detected), so that the low-power sensor supplies power to the operation-aware camera only when an object appears roughly or when a simple motion is detected, The present invention provides a method of operating a power saving electronic device according to an electronic device and a motion detection method capable of minimizing a standby power consumption according to whether an operation is performed.

An embodiment of the present invention is directed to a device for detecting whether an electronic device is in an off state (electronic standby state) in order to operate a camera and a process of a camera and a device for detecting motion or motion of an object, And an electronic device that minimizes standby power consumption by using a low-power sensor and an electronic device operating method according to motion detection in an electronic device in which power must always be supplied for a process.

An electronic device according to an embodiment of the present invention is a device that detects whether an object is present or not (whether a detailed motion or an operation mode needs to be detected and a detailed motion is an action or a camera is activated and the camera recognizes) A sensor; A camera which is activated when the motion of the object is detected from the low power sensor and recognizes the motion of the object; And an operation unit for performing an operation according to the setting when the operation of the object recognized by the camera satisfies a predetermined condition, and the power consumption of the low power sensor may be smaller than the power consumption of the camera.

The low-power sensor may include an ultrasonic sensor or an infrared sensor (it may be a low-power wide-range ultrasonic sensor or an infrared sensor, since it is a sensor for determining the presence or absence of an object or sensing rough motion).

The motion sensing camera may include a Depth-map camera (e.g., a Microsoft Kinect camera, etc.) that outputs a typical color or monochrome camera or Depth of an object.

In the case of the depth information map camera, when it is determined that the depth information change of the object matches or is similar to the predetermined condition, a control signal for activating the operation unit corresponding to the corresponding condition may be output. This principle of operation is similarly applicable to a module including a physical sensor capable of obtaining information from an object and surrounding environment as well as an image sensor such as a color or monochrome camera.

When a movement of an object is detected from the low-power sensor (when a dynamic object appears on a static background or a static object moves; for example, when a moving object is detected in a static background state in the case of a home smart TV) A camera for recognizing the operation and a device for performing the recognition process may be powered.

According to another aspect of the present invention, there is provided a method of operating an apparatus including a low-power sensor and a camera or an electronic sensor for recognizing an operation or a state of an object, the method comprising: sensing an object through the low- Recognizing an operation or a state of the object using the camera and the electronic sensor when the object is sensed; And performing a predetermined operation suited to the state of the recognized operation.

According to the present invention, a camera or a sensor that recognizes an operation to detect a motion or a state of an object may be provided with a smart information appliances which are required to continuously supply power even when the power of the entire system is turned off (standby power consumption state) A method for power saving standby power consumption is presented.

According to an embodiment of the present invention, there is provided an electronic device capable of supplying power to a camera only when a low-power sensor senses motion, and an electronic device operating method according to motion detection by controlling power of a camera using a low- do.

Thus, the present invention makes it possible to commercialize such technologies by reducing the standby power in a state in which such operation recognition technology can not be easily commercialized due to excessive consumption of the standby power due to the always powered camera. An embodiment of the present invention provides an electronic device having low standby power consumption using a low-power sensor and a method of operating an electronic device according to motion detection.

FIG. 1 is a diagram showing a state of a camera that detects objects (objects).
FIG. 2 is a view showing a state of a camera operating when an object (object) does not exist. FIG.
FIG. 3 is a view schematically showing an electronic device according to an example of the present invention.
4 is a diagram illustrating a low power sensor sensing an object according to an embodiment of the present invention.
5 is a diagram illustrating a low-power sensor operating in the absence of an object according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating a camera that operates after detecting objects of a low-power sensor according to an exemplary embodiment of the present invention.
7 is a control flowchart for explaining an operation recognition using a low-power sensor according to an embodiment of the present invention.
8 is a control block diagram of a sensing module that performs operation recognition using a low-power sensor according to an embodiment of the present invention.
9 is a control block diagram of an electronic apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . In addition, the description of "including" a specific configuration in the present invention does not exclude a configuration other than the configuration, and means that additional configurations can be included in the practice of the present invention or the technical scope of the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

In addition, the components shown in the embodiments of the present invention are shown independently to represent different characteristic functions, which does not mean that each component is composed of separate hardware or software constituent units. That is, each constituent unit is included in each constituent unit for convenience of explanation, and at least two constituent units of the constituent units may be combined to form one constituent unit, or one constituent unit may be divided into a plurality of constituent units to perform a function. The integrated embodiments and separate embodiments of the components are also included within the scope of the present invention, unless they depart from the essence of the present invention.

In addition, some of the components are not essential components to perform essential functions in the present invention, but may be optional components only to improve performance. The present invention can be implemented only with components essential for realizing the essence of the present invention, except for the components used for the performance improvement, and can be implemented by only including the essential components except the optional components used for performance improvement Are also included in the scope of the present invention.

In order to facilitate understanding of the present invention, an embodiment of a motion detection camera has been described. In addition to a camera, an electronic device that reduces power consumption by using such a principle is included in the scope of the present invention.

FIG. 1 illustrates a state of a camera that recognizes an object, and FIG. 2 illustrates a state of a camera that operates even when an object does not exist.

As shown in FIGS. 1 and 2, a camera recognizing an object and a motion recognizing process recognizing the motion of the object can be operated in order to recognize the motion of the object.

According to the existing technology, since the camera recognizing the operation always has to determine whether or not an object (object) exists or whether the object (object) moves, the camera is in a waiting state State), the camera must always be supplied with power. At the same time, the process of recognizing the existence of objects or motion of objects and the detailed motion patterns of objects using the information input from the camera must be continuously activated.

However, the object is not always perceived in the camera, and in almost all of the waiting states, there is often a static background without any objects to be recognized. However, from the viewpoint of an electronic device which does not know when to recognize a user's operation and perform an operation pattern related operation, it is necessary to continuously supply power to maintain the function of the camera and related processes at all times. In most cases, power consumption is consid- ered in the operation recognizing process together with the camera as in the case of Fig. 2, as in Fig. 2, although the system is in a power saving standby state, and the function of the camera is maintained (i.e., standby power consumption is relatively Which is very high).

That is, due to the power consumed in processing an algorithm related to a camera capable of recognizing motion, standby power consumption is unnecessarily consumed in an electronic device including a camera built in or externally.

In the case of a smart information appliance product group recognizing a motion or a motion of a human and performing a process corresponding to a corresponding motion pattern, an operation recognition process is performed with the motion recognition camera in a standby state of the corresponding system (On), the standby power consumption is prevented from becoming very large. To this end, the present invention utilizes a low-power sensor such as an ultrasonic sensor to always check whether an ultrasonic wave has an object in front of the camera (sudden appearance or no object) or rough motion, The present invention provides a method and apparatus for minimizing power consumption of a camera in a system standby state by supplying power to a camera or a process, which is an operation only when motion is detected.

Therefore, the present invention can additionally utilize a low-power sensor such as an ultrasonic sensor as a method for reducing the power consumption of the camera and related processes that recognize the operation of an object in a system standby state (standby power state). It is possible to supply power to the camera and the related process only when the ultrasonic sensor senses the motion by controlling the power of the camera which recognizes the operation using the ultrasonic sensor.

The present invention relates to a smart information appliance product group that recognizes a human motion or motion and performs a process corresponding to a corresponding motion pattern, so that the entire system is always powered on for an operation-aware camera and related processes There is a great effect in reducing the standby power consumption for the electronic device which must supply the status and recognize the situation.

FIG. 3 is a view schematically showing an electronic device according to an example of the present invention.

As shown in FIG. 3, the electronic device 1 includes a low-power sensor 10 and a camera module 20. The electronic device 1 may be implemented as a device such as, for example, a television or Internet of Things (IoT). Or the electronic device may include a large screen, an outdoor billboard, or any electronic product that is determined to be in operation, particularly in response to a person's approach or movement.

The low power sensor 10 may include a sensor capable of recognizing the appearance of an object or the approximate movement of an object such as an ultrasonic sensor or an infrared sensor, And can be implemented as a low power consuming product.

The camera module 20 may include a process in which an algorithm (or a recognition algorithm) operates with the camera as shown in FIGS. 1 and 2. When the object (object) appears suddenly on a static background or when there is a large movement of a certain level or more in a state where an object (object) already exists, if the change is detected by the low power sensor 10, And the motion recognition process can be activated. The motion recognition algorithm may include various known algorithms that recognize motion through information obtained from the camera.

According to the present invention, the low power sensor 10 and the camera module 20 built in or enclosed in the electronic device 1 can detect whether an object appears in the electronic device 1 or a static object Whether or not there is a movement of a threshold level or more in the object (object), and the like.

In the conventional motion recognition television, even if the television is in a standby state in which the power of the television is turned off in order to recognize the motion of the object, the power consumed by the camera and motion recognition algorithm is very large. In order to reduce standby power, an operation-aware camera also uses a method of activating a camera and a corresponding process, such as a remote controller, etc., in a state in which the camera is turned off in a power saving standby state, A camera is activated which can perform whether the television is active (system ON) or not.

As shown in FIG. 3, the low-power sensor 10 of the present invention senses the arrival of an object within the recognition (or recognition) range of the camera, (20) can be operated. Even if the low-power sensor 10 detects (recognizes or recognizes) the movement or appearance of an object or object other than a person, or sensing it, Since the operation related to the operation of the camera and the operation (recognition) algorithm is activated, the low-power sensor 10 can control the operation of the electronic device 1 1) does not occur. That is, the low-power sensor 10 performs an operation of activating a process related to only an operation-aware camera and an operation (recognition) algorithm by detecting whether an entire system is in appearance or motion of an object in a power saving standby state .

Therefore, in the electronic apparatus 1 waiting for power saving, only the low-power sensor 10 operates, so that the power saving standby state can be maintained with much less power than that used in the camera and the motion recognition algorithm.

If the low-power sensor 10 recognizes or senses an apparance or motion of an object as shown in the right-hand side of FIG. 3, And is activated by the sensor 10 to be able to recognize an accurate gesture pattern of the object. And turning on the electronic device 1 in accordance with a series of motion patterns of the object (a pattern for a series of operations in which a finger is folded or folded, or a hand is turned from right to left) A specific program can be executed, a volume can be increased, or the like.

On the other hand, studies on motion perception (gesture recognition) such as gesture recognition, which is related technology field, are being actively researched. Techniques such as accuracy of motion recognition, and reliable object separation through depth information are evolving remarkably. In the case of a camera capable of detecting motion, the technology must always be operated even when the power of the entire system is turned off to be in a power saving standby state, and the problem of implementing a power saving electronic product There is a potential problem in terms of practicality.

That is, although the technique of motion recognition has been developed, it is necessary to develop additional technology to reduce the power consumption in the standby state of the system.

FIG. 4 is a diagram showing a low-power sensor sensing (recognizing a change in a situation) sensing or recognizing the arrival or movement (change) of an object (object) according to an exemplary embodiment of the present invention, FIG. 2 is a diagram illustrating a low-power sensor that operates when an object does not exist according to FIG. The low-power sensor shown in Figs. 4 and 5 can be simply implemented as an ultrasonic sensor that senses a change of an object by using ultrasonic waves.

The ultrasonic sensor includes a feeder (not shown) and a water hammer (not shown) for transmitting and receiving ultrasonic waves, and has a lower power consumption than a camera. The transmitter performs the operation of emitting the wavelength, and the wave detector receives the wavelength reflected by the wave reflected from the object (object) and detects or recognizes a rough change of the situation. The ultrasonic sensor according to an exemplary embodiment of the present invention may be an echo mode including a transmitter and a water hammer.

FIG. 4 shows the state of a returning wave when the wave sent from the transmitter recognizes a change (a situation) of an object (object). The wave indicated by the solid line is the ultrasonic wave transmitted from the ultrasonic sensor transmitter, and the wave indicated by the dotted line represents the wave reflected from the object and received by the water hammer. When the ultrasonic sensor senses or recognizes the change of the object (for example, the time when the ultrasonic wave transmitted in the previous time zone is reflected and reflected, and the time when the current ultrasonic wave is transmitted and reflected and returned) (Object) suddenly appears, or a static object moves roughly, or the like, or a change in an object (object)), that is, when a change in an object (object) Recognizing or sensing) the power supply to the operation-aware camera and the operation-aware process to perform the corresponding process.

As shown in FIG. 5, although the ultrasonic sensor performs the operation, that is, the object sensing operation, while the object is not present, the power used by the ultrasonic sensor is much lower than the power used continuously by the camera in FIGS. . If there is no change in the wave reflected and transmitted from the transmitter (ie, if, for example, the reflection time in the immediately preceding time zone and the change in reflection time in the current time zone are below a predetermined threshold) (Standby power consumption is very large) compared to the power consumption of the related module that analyzes and processes the image by always supplying power to the camera even when the existing user turns off the system.

The ultrasonic sensors described in Figs. 4 and 5 are one embodiment, and can replace their roles with other low power sensors capable of performing the described operations.

In summary, it is possible to minimize the standby power consumption by operating only the ultrasonic sensor without supplying power to the camera, instead of always operating the camera that recognizes motion, even when the electronic product system is off. When a wave sent from a transmitter of an ultrasonic sensor is input to a water hammer, the ultrasonic sensor maintains only a sensing operation when a state in which the change of the wave is below a predetermined threshold and is determined to be unchanged is maintained. In one embodiment, when a wave received by a water hammer changes more than a threshold value different from the previous time instant, it is considered that the object suddenly appears or the movement of the object (sensing) is detected To power the camera and associated processes that recognize the operation. A powered-on camera can be ready to recognize the gesture (action) of an object (object).

FIG. 6 is a diagram illustrating a camera operating after detecting objects of a low-power sensor according to an exemplary embodiment of the present invention. Referring to FIG.

As shown, the low power sensor and camera of FIG. 6 may be implemented as a single unit or module. Accordingly, the low-power sensor and the camera can operate organically, and can quickly prepare for motion recognition immediately upon sensing the motion of the object. Also, the operation of the algorithm-related process of recognizing (recognizing) and processing the gesture (operation) of the object by the camera after the low-power sensor detects the object may be interlocked. Through this, it is possible to maintain the existing function by the new interlocking of the low power sensor and the camera, while solving the problem that the motion recognition camera can not maintain the maximum power saving state even in the standby state for recognizing the gesture of objects, and is always turned on.

7 is a control flowchart for explaining an operation recognition using a low-power sensor according to an embodiment of the present invention. FIG. 7 shows an embodiment of operation recognition using a low-power sensor in a device standby state, and various embodiments may exist depending on the type of low-power sensor and object sensing method.

In the standby state (S710) of the electronic device, the low-power sensor remains on (S720), and the presence or absence of the operation recognition object is checked (S730). The low-power sensor can detect the presence or absence of the motion recognition object by recognizing the motion.

If the movement of the object is not greater than the preset threshold value, the movement is checked through the subsequent ultrasonic transmission / reception (S740).

If the movement of the object is detected by the low-power sensor, for example, when the change of the wave reflected by the object is detected in the water hammer of the ultrasonic sensor, it is regarded that the motion of the object is detected, (S750).

Thereafter, the motion recognition of the object can be performed by activating the motion recognition algorithm related process of the camera (S760)

If there is no more movement of the object in the camera, the power supplied to the camera that recognizes the motion may be cut off.

In this case, the motion recognition camera is deactivated and at the same time, after the ultrasonic sensor is turned on (S720), a series of motion search (S730), object motion recognition (S740), motion recognition camera ON (S750) Can be repeated even when the electronic device is in a standby state or when the electronic device is in an activated state.

On the other hand, in the case where the motion of the object or the object is not detected even though the electronic device is in the active state instead of the standby state, the operation recognition process using the low power sensor described in FIG. 7 can be applied. For example, if the television is on but the user is not in front of the television, or the television system is on, but the user is asleep, the low-power sensor can not detect the user's movement, Can be blocked. That is, even when the electronic device system is turned on, it is possible to operate only the low-power sensor without supplying power to the camera.

The camera according to the present invention may include a depth-map camera capable of recognizing the depth of an object, a depth camera, and a depth-recognition camera. For convenience of explanation, it is expressed by a depth information map camera.

The depth information map camera can sense (or recognize) the depth information between the object and the camera, and the depth information map camera according to the present invention can detect the motion of the object only when the depth information with the object is within a predetermined threshold range .

For example, if an object is detected in front of an electronic device including an ultrasonic sensor and a low-power sensor, if the object is not recognized as simply passing through the electronic device or trying to operate the electronic device, the depth information map camera may not recognize it as an operation have.

Accordingly, the depth information map camera recognizes the depth information of the detected object as an operation of the object when the depth information satisfies a predetermined threshold range, and can take subsequent actions such as supplying power to the electronic device.

8 is a control block diagram of a sensing module that performs operation recognition using a low-power sensor according to an embodiment of the present invention.

The sensor module may include a power control unit 100, an ultrasonic sensor control unit 200, and a camera control unit 300. 8 may be implemented as a detailed control unit in a control system of a large system, for example, an electronic device.

In this embodiment, the power control unit 100 includes an ultrasonic sensor power control unit 110 for controlling the power of the ultrasonic sensor and a camera power control unit 120 for controlling the power of the camera can do.

The ultrasonic sensor power controller 110 can control the power of the ultrasonic wave transmitter and the ultrasonic wave transmitter. Since the ultrasonic wave transmitter and the water wave can be used as one unit, they can be controlled by one ultrasonic sensor power control unit 110.

The camera power control unit 120 controls the power of the camera. Since it is a major feature of the present invention to reduce the power consumed by the camera, the power of the camera is controlled by the power control unit 100.

 The ultrasonic sensor controller 200 controls the overall function of the ultrasonic sensor. The ultrasonic sensor controller 200 may include an ultrasonic sensor power unit 210 and a motion recognition module 220. The ultrasonic sensor power supply unit 210 may supply power to the ultrasonic sensor through the control of the ultrasonic sensor power supply control unit 110.

The motion recognition module 220 is a module for recognizing a motion using a signal reflected by an object in response to a wave transmitted from a transmitter of an ultrasonic sensor. When motion recognition is performed in the motion recognition module 220, a signal for activating the camera power unit 310 is input to the camera power control unit 120.

 The camera control unit 300 is a part for collectively controlling the operation recognition of the camera. The camera power unit 310, which supplies the camera with power as a whole to enable camera operation, receives a control signal from the camera power control unit 120.

That is, when power is supplied and operation for shooting is enabled, the motion recognition module 320 of the camera recognizes the motion of the object. The motion recognition module 320 includes a camera device such as a lens for performing imaging and an algorithm-related process for recognizing the operation of the object through the camera device. Accordingly, the motion of the object whose motion has been detected can be recognized through the motion recognition module 220 of the ultrasonic sensor.

When the operation recognition module 320 performs the operation recognition, the power of the ultrasonic sensor can be managed through the ultrasonic sensor power controller 110 of the ultrasonic sensor. Since the motion recognition of the ultrasonic sensor is practically meaningless during the motion recognition using the camera, the ultrasonic sensor power supply unit 210 may be controlled through the ultrasonic sensor power supply control unit 110. [ That is, the ultrasonic sensor power control unit 110 may cut off the power supplied to the ultrasonic sensor.

9 is a control block diagram of an electronic apparatus according to an embodiment of the present invention.

As shown, the electronic device 900 may include a low power sensor 910, a camera 920, an operating portion 930, and a display portion 940.

The electronic device 900 may include a monitor, a computer system, a large screen or a touch screen including a display unit 940 for displaying an image, various electronic devices implemented in the object Internet.

The low-power sensor 910 can detect the presence or absence of an object depending on whether the object moves or moves. The low power sensor 910 may include an ultrasonic sensor or an infrared sensor.

The camera 920 is activated when it is detected that the object is present from the low power sensor 910, and can recognize the operation of the object. Activation in the present invention means that power is supplied to the camera 920 when it is detected that an object is present from the low power sensor 910. That is, when power is not supplied to the camera 920 that recognizes the operation of the object, if the object is detected to be present or moving in the low-power sensor 910, power may be supplied thereafter.

According to the present invention, the camera 920 may include a depth information map camera that recognizes depth information of the object. The camera 920 may output a control signal for activating the operation unit 940 when the depth information of the object exists within a predetermined threshold range. For example, if the object exists within a predetermined threshold range for a predetermined time, the object can recognize the intention to operate the electronic device and output a specific control signal to the operation unit 930.

The power consumption of the low-power sensor 910 is smaller than the power consumption of the camera 920.

When the operation of the object recognized by the camera 920 satisfies a predetermined condition, the operation unit 930 can perform a predetermined operation when the object exists within a predetermined threshold range for a predetermined time, as described above.

According to an embodiment of the present invention, the operation unit 930 may include a power supply unit for supplying power to a display unit for displaying an image. When the movement of the object is recognized as an intention to control the electronic device through the detection of the low-power sensor 910 and the camera 920, the power source supplies power to the display unit 940 to provide an environment for use of the electronic device to the user can do.

As described above, according to the present invention, a method by which a user can satisfy a demand for a desired low-power product can be saved by always connecting the power source and consuming more than necessary.

In addition, due to high power consumption in terms of practicality, a motion detection camera can not always be built in an electronic device such as a television and can not be produced.

Therefore, it is possible to solve the practical problem that the technology can not be applied to actual electronic devices through the method disclosed in the present invention and the device using the method.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

The above-described embodiments include examples of various aspects. While it is not possible to describe every possible combination for expressing various aspects, one of ordinary skill in the art will recognize that other combinations are possible. Accordingly, it is intended that the invention include all alternatives, modifications and variations that fall within the scope of the following claims.

100: power supply control unit 110: ultrasonic sensor power supply control unit
120: camera power control unit 200: ultrasonic sensor control unit
210: ultrasonic sensor power unit 220: motion recognition module
300: camera control unit 310: camera power unit
320: motion recognition module

Claims (11)

A low power sensor for sensing whether an object is present or moving;
A camera which is activated when a movement of the object is detected through the low-power sensor while the deactivated state is maintained in a power saving standby state;
Wherein the camera recognizes a gesture of the object and performs a predetermined operation when the recognized gesture satisfies a predetermined condition,
Wherein power consumption of the low-power sensor is smaller than power consumption of the camera. The method according to claim 1,
Wherein the low-power sensor includes an ultrasonic sensor or an infrared sensor. The method according to claim 1,
Wherein the camera includes a depth information map camera that recognizes depth information of the object. The method according to claim 1,
And a sensor for checking a state of a recognition object instead of the camera. The method of claim 3,
And when the depth information is within a predetermined threshold range, the operation unit is activated. The method according to claim 1,
And power is supplied to the camera when motion of the object is sensed through the low-power sensor. The method according to claim 1,
Wherein the operation unit includes a display unit that displays an image and a power unit that supplies power to a part that performs the related operation. A method of operating an electronic device including a low power sensor and a camera that recognizes the operation of the object,
Detecting whether the object is moving through the low power sensor;
Activating the camera when motion of the object is sensed;
And performing a predetermined operation when a gesture recognized through the camera satisfies a predetermined condition,
Wherein the camera is kept in an inactive state in a power save standby state and is activated when motion of the object is detected through the low power sensor,
Wherein the power consumption of the low-power sensor is smaller than the power consumption of the camera. 9. The method of claim 8,
Wherein power is supplied to the camera when the presence of the object is detected through the low-power sensor. 9. The method of claim 8,
When the camera is a depth information map camera in which depth information of the object is recognized,
Wherein the step of performing the predetermined operation is performed on condition that the depth information is within a predetermined threshold range. 9. The method of claim 8,
Wherein the step of performing the predetermined operation is a step of supplying power to a display unit for displaying an image.

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