WO2015062159A1 - Display device and operating method thereof - Google Patents

Display device and operating method thereof Download PDF

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Publication number
WO2015062159A1
WO2015062159A1 PCT/CN2014/000541 CN2014000541W WO2015062159A1 WO 2015062159 A1 WO2015062159 A1 WO 2015062159A1 CN 2014000541 W CN2014000541 W CN 2014000541W WO 2015062159 A1 WO2015062159 A1 WO 2015062159A1
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WO
WIPO (PCT)
Prior art keywords
user
display device
image
control unit
unit
Prior art date
Application number
PCT/CN2014/000541
Other languages
French (fr)
Chinese (zh)
Inventor
张凯亮
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Publication of WO2015062159A1 publication Critical patent/WO2015062159A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3231—Monitoring the presence, absence or movement of users
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/4223—Cameras
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display device and a method for operating the same. Background technique
  • the user is in a relaxed state while watching TV, while the relaxed person is easy to fall asleep; if the user has gradually gone to sleep while watching TV, and the TV continues to play, it will not only affect the user's Resting will also cause waste of energy.
  • the user can freely turn on or off the sleep function of the TV, as shown in FIG.
  • the TV performs normal operations when it is not in sleep mode.
  • the TV sets an initial state and starts counting by the timer. After a period of time, the timer time reaches a predetermined sleep mode time T1. If the system does not detect the user's key input during this time, the television automatically turns on the television. The volume and brightness are reduced; after that, the timer reaches another predetermined sleep mode time ⁇ 2 after a period of time. If the user does not detect the user's key input during this time, the TV volume and brightness are automatically reduced again. After the volume and brightness are gradually reduced in stages, if the user input is not detected, the system automatically turns off the TV.
  • Embodiments of the present invention provide a display device and a working method thereof, which are used to solve the problem that the display device cannot enter the sleep mode by itself, thereby improving the user experience and saving energy.
  • An embodiment of the present invention provides a display device, where the display device includes a display unit, and the display device further includes an image acquisition unit and a control unit.
  • the image acquisition unit is configured to collect a user image in real time, and transmit the user image to the control unit;
  • the control unit is configured to receive a user image, and determine and analyze the user image.
  • the user status information and when the user status information satisfies the preset condition, the display device is controlled to enter a power saving state.
  • the display device may determine whether it is necessary to enter the power-saving state according to whether the detected user state information satisfies a preset condition, and does not require the user to input a button to perform setting, thereby ensuring that the user's rest is not affected, and is also beneficial to the user. Reduce energy waste.
  • the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user.
  • the user will keep blinking.
  • the distance between the upper and lower eyelids and the face will change, and the distance between the upper and lower eyelids after the user falls asleep and the length of the user's face.
  • the ratio is generally constant or the change is small. Therefore, by observing the change in the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, it is possible to determine whether the user is asleep or not, and thereby determine whether the display device is to enter a power saving state.
  • the control unit is configured to determine, by analyzing the user image, a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user, and a distance between the upper and lower eyelids of the user in consecutive multiple frames of images
  • the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode.
  • the control unit and the image acquisition unit are still in an active state. By turning off the display unit, it is possible to avoid the purpose of affecting the rest of the user and reducing energy waste.
  • control unit is further configured to: after detecting that the user status information changes after the display device enters the sleep mode, send an open signal to the display unit, and turn on the display unit, so that the display device enters The normal play mode, which allows the user to continue watching the current program without any key input after waking up.
  • control unit is further configured to control the power of the display device to be automatically turned off, so that the display device is turned off, to avoid affecting the user's rest, and to avoid energy waste.
  • the embodiment of the invention provides a working method of the above display device, and the method comprises:
  • the image acquisition unit collects a user image in real time and transmits the user image to the control unit;
  • the control unit receives the image of the user, and determines the user shape by analyzing the image of the user Status information, and when the user status information satisfies a preset condition, the display device is controlled to enter a power saving state.
  • the display device can determine whether it needs to enter the power-saving state according to whether the user state information satisfies the preset condition, without requiring user setting, does not affect the user's rest, and can also reduce energy waste.
  • the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user.
  • the control unit receives a user image, and determines, by analyzing the user image, a ratio of a distance between a user's upper and lower eyelids to a length of the user's face, and a distance between the user's upper and lower eyelids in the continuous multi-frame image and the user
  • the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode.
  • the ratio between the distance between the upper and lower eyelids and the length of the face of the user is constantly changing when the user is awake, the ratio of the distance between the upper and lower eyelids and the length of the user's face generally does not change after the user falls asleep. Or the change is small. Therefore, by observing the change of the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user, it can be determined whether the user has fallen asleep, thereby determining whether the display device is to enter a sleep state, and avoiding the user. Rest has an impact, while also reducing energy wastage.
  • the method further includes: after detecting that the user status information changes after the display device enters the sleep mode, the control unit sends an open signal to the display unit, and turns on the display unit, so that the display The device enters the normal play mode.
  • the control unit and the image acquisition unit are still in an active state, and may continue to collect user images and analyze and determine user state information.
  • the control unit sends the display unit to the display unit. The signal is turned on, and the display unit is turned on, so that the display device enters a normal play mode, so that the user can understand the current play state without waking up by pressing the button input.
  • the method further includes: when the user state information meets the preset condition, the control unit controls the power of the display device to be automatically turned off, so that the entire display device is turned off, thereby not only avoiding affecting the user's rest, but also Energy waste can be avoided.
  • FIG. 1 is a schematic flow chart of a working method of a display device in the prior art
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a working method of a display device according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a working method of another display device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a display device and a working method thereof, which are used to solve the problem that the display device cannot enter the sleep mode by itself, thereby improving the user experience and saving energy.
  • the embodiment of the invention provides a display device, the display device includes a display unit, the display device further includes an image acquisition unit and a control unit, wherein the image acquisition unit is configured to collect a user image in real time, and the user image is The control unit is configured to receive a user image, determine user status information by analyzing the user image, and control the display device to enter a power saving state when the user status information meets the preset condition.
  • a display device includes: a display unit 201, an image capturing unit 203, and a control unit 204;
  • the display unit 201 is configured to implement image display.
  • the image acquisition unit 203 is configured to collect a user image in real time, and transmit the user image to the control unit 204;
  • the control unit 204 is configured to receive a user image from the image collection unit 203, determine user status information by analyzing the user image, and control the display device to enter the province when the user status information meets a preset condition. Electrical state.
  • the display device can determine and automatically enter the power-saving state according to the detected user state information, does not need user setting, avoids affecting the user's rest, and can also reduce energy waste. .
  • the working mode of the display device includes: a normal working mode and a sleep mode; in the normal working mode, the display unit 201, the image collecting unit 203, and the control unit 204 are all in an operating state; in the sleep mode, The display unit 201 is turned off, and the image acquisition unit 203 and the control unit 204 remain in an active state.
  • the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user.
  • the user will keep blinking, and when the user winks, the distance between the upper and lower eyelids and the face will change.
  • the ratio of the distance between the upper and lower eyelids and the face of the user after sleep is generally not changed or changed very little. Therefore, by observing the change in the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, it can be determined whether the user has fallen asleep, thereby determining whether the display device needs to enter a power saving state.
  • the control unit 204 receives the user image from the image acquisition unit 203, and determines the ratio of the distance between the upper and lower eyelids of the user to the length of the face of the user.
  • the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in the continuous multi-frame image and the user
  • the ratio of the length of the face belongs to the preset range (Al, A2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state;
  • the ratio of the distance between the user's upper and lower eyelids and the user's face length in the user image collected is within the preset range [0, A1], or when the user is in a continuous multi-frame image.
  • the ratio between the distance between the upper and lower eyelids and the length of the user's face belongs to the preset range (Al, A2)
  • the user is considered to have entered the sleep state; conversely, if the user image is acquired within two minutes,
  • the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user belongs to the preset range [0, Al], and the other part belongs to the preset range (Al, A2), and the user is considered to be awake.
  • the ratio when the ratio is less than or equal to A1, the user's eyes are considered to be closed, and when the ratio is greater than A1, the user's eyes are considered to be open, and A2 is between the user's upper and lower eyelids.
  • the values of A1 and A2 can also be set by the user according to their own facial conditions.
  • the user status information may also be other information, such as the distance between the upper and lower eyelids of the user, or the area of the eye area of the user.
  • control unit 204 may further determine the area of the eye area of the user by analyzing the image of the user, and the area of the eye area of the user in consecutive multiple frames of images belongs to the preset range [0, Bl], or when continuous When the area of the eye area of the user in the multi-frame image belongs to the preset range (Bl, B2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state;
  • the area of the eye area on the user in the collected user image belongs to the preset range [0, B1], or the area of the eye area of the user in the continuous multi-frame image belongs to the pre-predetermined range.
  • the range (Bl, B2) is set, the user is considered to have entered the sleep state; conversely, if within two minutes, part of the user's eye area in the collected user image belongs to the preset range [0, B1], When the other part belongs to the preset range (Bl, B2), the user is considered to be awake;
  • the eyes of the user when the area of the eye area of the user is less than or equal to B1, the eyes of the user are considered to be closed, and when the area of the eye area of the user is larger than B1, the eyes of the user are considered to be open.
  • the B2 is the maximum value of the area of the eye area of the user; in general, the B1 is 10. 5 square meters, and the B2 is 10. 4 square meters.
  • the values of B1 and B2 can also be set by the user according to their own circumstances.
  • the control unit 204 may further determine the ratio of the area of the eye area of the user to the face area of the user by analyzing the image of the user, thereby determining the current user state information.
  • the control center The display device enters a power saving state.
  • the method for determining the current user state information by the ratio of the area of the eye area of the user to the face area of the user, and the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user to determine the current The method of user status is the same and will not be described here.
  • control unit 204 After determining that the user enters the sleep state, the control unit 204 sends a shutdown signal to the display unit 201, turning off the display unit 201, so that the display device enters a sleep mode; in the sleep mode, brightness and sound pairs can be avoided The impact of user rest can also reduce energy waste.
  • the image acquisition unit 203 and the control unit 204 are still in the working state, and the image acquisition unit 203 continues to collect the user image and transmits it to the control unit 204, and the control unit 204 continues to receive the image.
  • the user image from the image acquisition unit 203 analyzes the received user image, determines the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, and determines the current user state information.
  • control unit 204 When the control unit 204 detects that the user status information is changed, the control unit 204 is further configured to send an open signal to the display unit 201, and turn on the display unit 201, so that the display device enters a normal working mode, thereby After waking up, the user can see the playing status of the current program without any operation.
  • control unit 204 After detecting that the user status information is changed, the control unit 204 is further configured to first clear the record of the user status information before the change occurs, so that the control unit 204 can determine whether the changed user status information is changed. Meet the preset conditions. Because each person's face and eye length ratio is different, "record clear" is to enter the user's personal information. Vertical alignment, avoiding deviations in lateral contrast. Therefore, when a new user is detected, clearing the previous user's information can avoid the comparison of information between two different people, resulting in misjudgment.
  • the second embodiment of the present invention provides another display device.
  • the display device has the same structure as the display device of FIG. 2, and the difference between the two is that the display device provided in the second embodiment of the present invention
  • the control unit 204 is configured to control the power of the display device to be automatically turned off, thereby causing the entire display device to be turned off.
  • the power of the display device is turned off, indicating that the display unit 201, the image acquisition unit 203, and the control unit 204 are all turned off. Therefore, compared with the display device provided in the first embodiment, the display device provided by the second embodiment is more energy-efficient, but The display device cannot continue to detect the user status information after the power is turned off, and cannot automatically enter the normal play mode after the user wakes up.
  • the above display device does not need user setting, and can automatically enter the power saving state according to the user state information, thereby avoiding the user's rest, reducing energy waste, and improving the user's feeling.
  • the embodiment of the invention provides a working method of a display device, which comprises a display unit, a control unit and an image acquisition unit, the method comprising:
  • the image acquisition unit collects a user image in real time, and transmits the user image to the control unit;
  • the control unit receives the user image, determines the user status information by analyzing the user image, and controls the display device to enter a power saving state when the user status information satisfies the preset condition.
  • the display device can determine whether it needs to enter the power-saving state according to the detected user state information, and does not require the user to input a button to set, to ensure that the user's rest is not affected, and also to reduce energy waste.
  • the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user.
  • the control unit receives a user image, and determines, by analyzing the user image, a ratio of a distance between a user's upper and lower eyelids to a length of the user's face, and a distance between the user's upper and lower eyelids in the continuous multi-frame image and the user
  • the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode.
  • the method further includes: after the display device enters a sleep mode, when When detecting that the user status information is changed, the control unit sends an open signal to the display unit, and the display unit is turned on, so that the display device enters a normal working mode, so that the user can understand after waking up without inputting a key. Current playback status.
  • control unit can also control the power of the display device to be automatically turned off, so that the entire display device is turned off, which can effectively avoid affecting the user's rest, and can also reduce energy waste.
  • the third embodiment of the present invention provides a method for operating a display device.
  • a display device provided by the first embodiment of the present invention is used as an example to describe a working method of the display device provided by the implementation of the present invention.
  • the method includes:
  • a first step 301 the display device is turned on, so that the display unit 201, the image acquisition unit 203, and the control unit 204 are in an active state.
  • the image capturing unit 203 collects the user image in real time and transmits the user image to the control unit 204.
  • the control unit 204 receives the user image from the image acquisition unit 203, calculates the ratio of the distance between the upper and lower eyelids of the user in each frame image and the length of the face of the user, and determines the current user state information.
  • the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in consecutive multiple frames of images
  • the ratio of the length of the face of the user belongs to the preset range (Al, A2)
  • the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state.
  • a fourth step 304 when it is determined that the user has entered the sleep state, the control unit 204 sends a shutdown signal to the display unit, and the display unit is turned off, so that the display device enters a sleep mode; otherwise, the display device remains in normal operation. status.
  • the image acquisition unit 203 and the control unit 204 are still in a normal working state.
  • the control unit 204 sends an enable signal to the display unit 201 to turn on the display unit 201 to cause the display device to enter the normal operation mode.
  • the display device can determine whether it needs to enter the sleep state according to the detected user state information, thereby avoiding the impact on the rest of the user, and also reducing energy waste.
  • the user does not need to perform any key input after waking up, and the device can automatically enter the normal working mode according to the detected user state information, so that the user can understand the playing situation of the current program, and the use is improved. Household feelings.
  • the fourth embodiment of the present invention further provides a working method of the display device.
  • the display device provided by the second embodiment of the present invention is used as an example to describe the working method of the display device provided by the implementation of the present invention. Includes:
  • a first step 401 the display device is turned on, so that the display unit 201, the image acquisition unit 203, and the control unit 204 are in an active state.
  • the image acquisition unit 203 collects the user image in real time and transmits the user image to the control unit 204.
  • the control unit 204 receives the user image from the image acquisition unit 203, calculates a ratio of the distance between the upper and lower eyelids of the user in each frame image and the length of the face of the user, and determines current user state information;
  • the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in the continuous multi-frame image
  • the ratio of the length of the user's face does not belong to the preset range (Al, A2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state.
  • a fourth step 404 when it is determined that the user has entered the sleep state, the control unit 204 controls the power of the display device to be automatically turned off, so that the entire display device is turned off; otherwise, the display device maintains a normal working state.
  • the display device can also determine whether it needs to enter a sleep state according to the user status information, and can effectively prevent the sound and brightness from affecting the rest of the user, and can also avoid energy waste.
  • the image display unit and the control unit are provided in the display device provided by the embodiment of the present invention
  • the user image is collected in real time by the image acquisition unit, and the user image is transmitted to the control unit
  • the control unit user receives the User image, determining user state information by analyzing the user image, and when the user state information meets a preset condition, controlling the display device to enter a power saving state, that is, automatically turning on the sleep mode or automatically turning off the display device, Users need any key input to avoid affecting the user's rest, improve the user's feelings, and save energy.

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Abstract

A display device and an operating method thereof, aiming to solve the problem that the display device cannot automatically enter a sleep mode, and thus to save energy. The display device comprises a display unit (201), an image acquisition unit (203) and a control unit (204), wherein the image acquisition unit (203) is used for acquiring a user image in real time and transmitting the user image to the control unit (204), and the control unit (204) is used for receiving the user image, determining user state information by analyzing the user image, and controlling the display device to enter a power-saving state when the user state information meets preset conditions.

Description

一种显示装置及其工作方法 技术领域  Display device and working method thereof
本发明涉及显示技术领域， 尤其涉及一种显示装置及其工作方法。 背景技术  The present invention relates to the field of display technologies, and in particular, to a display device and a method for operating the same. Background technique
用户在观看电视时处于一种放松状态，而处于放松状态的人很容易睡 着； 如果用户在观看电视的过程中已渐渐进入睡眠状态， 而电视还在继续 播放的话， 不仅会影响到用户的休息， 还会造成能源的浪费。  The user is in a relaxed state while watching TV, while the relaxed person is easy to fall asleep; if the user has gradually gone to sleep while watching TV, and the TV continues to play, it will not only affect the user's Resting will also cause waste of energy.
现有技术中， 用户可自由开启或关闭电视的睡眠功能， 如图 1所示。 电视在未处于睡眠模式时， 执行正常操作。 电视在进入睡眠模式时设置一 初始状态并由定时器开始计时，一段时间后定时器时间 4氏达预先确定的睡 眠模式时间 Tl， 若在此期间***未检测到用户按键输入， 则自动将电视 音量及亮度降低；此后再经过一段时间定时器抵达另一预先确定的睡眠模 式时间 Τ2, 若在此期间***未检测到用户按键输入， 则再次自动将电视 音量及亮度降低。 如此经过数次音量及亮度分阶段逐步降低后， 若仍未检 测到用户按键输入， 则***自动关闭电视。  In the prior art, the user can freely turn on or off the sleep function of the TV, as shown in FIG. The TV performs normal operations when it is not in sleep mode. When the TV enters the sleep mode, the TV sets an initial state and starts counting by the timer. After a period of time, the timer time reaches a predetermined sleep mode time T1. If the system does not detect the user's key input during this time, the television automatically turns on the television. The volume and brightness are reduced; after that, the timer reaches another predetermined sleep mode time Τ2 after a period of time. If the user does not detect the user's key input during this time, the TV volume and brightness are automatically reduced again. After the volume and brightness are gradually reduced in stages, if the user input is not detected, the system automatically turns off the TV.
但是，上述电视是否需要进入睡眠模式是通过用户的按键操作来执行 的， 并不能根据外界条件的变化自动进入睡眠状态； 当电视未处于睡眠模 式时，如果用户进入了睡眠状态， 电视会继续播放，不仅会影响用户休息， 还会造成能源浪费； 或者， 当电视进入睡眠模式后， 如果定时器时间抵达 预先确定的睡眠模式时间， 用户还处于清醒状态， 那么用户需要输入按键 才能够继续正常观看， 影响用户的观看感受。 发明内容  However, whether the above-mentioned television needs to enter the sleep mode is performed by the user's key operation, and cannot automatically enter the sleep state according to the change of the external conditions; when the television is not in the sleep mode, if the user enters the sleep state, the television will continue to play. Not only will it affect the rest of the user, but also cause energy waste; or, when the TV enters the sleep mode, if the timer reaches the predetermined sleep mode time, the user is still awake, then the user needs to input a button to continue normal viewing. , affecting the user's viewing experience. Summary of the invention
本发明实施例提供了一种显示装置及其工作方法，用以解决显示 装置不能自行进入睡眠模式的问题， 从而改善用户体验并节约能源。  Embodiments of the present invention provide a display device and a working method thereof, which are used to solve the problem that the display device cannot enter the sleep mode by itself, thereby improving the user experience and saving energy.
本发明实施例提供了一种显示装置， 所述显示装置包括显示单元， 所述显示装置还包括图像采集单元和控制单元； 其中，  An embodiment of the present invention provides a display device, where the display device includes a display unit, and the display device further includes an image acquisition unit and a control unit.
所述图像采集单元用于实时采集用户图像， 并将用户图像传输给控 制单元；  The image acquisition unit is configured to collect a user image in real time, and transmit the user image to the control unit;
所述控制单元用于接收用户图像， 通过对用户图像进行分析确定用 户状态信息， 并且当用户状态信息满足预设条件时， 控制所述显示装置 进入省电状态。 The control unit is configured to receive a user image, and determine and analyze the user image. The user status information, and when the user status information satisfies the preset condition, the display device is controlled to enter a power saving state.
所述显示装置可以根据所检测到的用户状态信息是否满足预设条件 来自行判断是否需要进入省电状态， 而不需要用户输入按键进行设定， 从而保证不影响用户的休息， 同时还有利于减少能源浪费。  The display device may determine whether it is necessary to enter the power-saving state according to whether the detected user state information satisfies a preset condition, and does not require the user to input a button to perform setting, thereby ensuring that the user's rest is not affected, and is also beneficial to the user. Reduce energy waste.
优选地， 所述用户状态信息包括用户上下眼睑之间的距离与该用户 的脸部长度的比值。 用户在正常观看节目时， 用户会不断的眨眼， 眨眼 时上下眼睑之间的距离与脸的比值就会发生变化， 而用户在睡着后上下 眼睑之间的距离与该用户的脸部长度的比值一般是不变的或变化很小。 因此， 通过观测用户上下眼睑之间的距离与该用户的脸部长度的比值的 变化情况， 则可以确定用户是否睡着， 进而确定所述显示装置是否要进 入省电状态。  Preferably, the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user. When the user is watching the program normally, the user will keep blinking. When the user blinks, the distance between the upper and lower eyelids and the face will change, and the distance between the upper and lower eyelids after the user falls asleep and the length of the user's face. The ratio is generally constant or the change is small. Therefore, by observing the change in the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, it is possible to determine whether the user is asleep or not, and thereby determine whether the display device is to enter a power saving state.
优选地， 所述控制单元用于通过对所述用户图像进行分析， 确定用 户上下眼睑之间的距离与该用户的脸部长度的比值， 当连续多帧图像中 用户上下眼睑之间的距离与该用户的脸部长度的比值均属于预设范围 时， 所述控制单元向显示单元发送关闭信号， 关闭所述显示单元， 使得 所述显示装置进入睡眠模式。 在所述睡眠模式下， 所述控制单元和图像 采集单元仍处于工作状态。 通过关闭所述显示单元， 可达到避免影响用 户的休息和减少能源浪费的目的。  Preferably, the control unit is configured to determine, by analyzing the user image, a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user, and a distance between the upper and lower eyelids of the user in consecutive multiple frames of images When the ratio of the lengths of the faces of the user belongs to the preset range, the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode. In the sleep mode, the control unit and the image acquisition unit are still in an active state. By turning off the display unit, it is possible to avoid the purpose of affecting the rest of the user and reducing energy waste.
优选地， 所述控制单元， 还用于在所述显示装置进入睡眠模式后， 当检测到用户状态信息发生改变时， 向显示单元发送开启信号， 开启所 述显示单元， 使得所述显示装置进入正常播放模式， 进而使得用户在醒 来后不需要通过任何的按键输入就可以继续观看当前节目。  Preferably, the control unit is further configured to: after detecting that the user status information changes after the display device enters the sleep mode, send an open signal to the display unit, and turn on the display unit, so that the display device enters The normal play mode, which allows the user to continue watching the current program without any key input after waking up.
优选地， 当用户状态信息满足预设条件时， 所述控制单元还用于控 制所述显示装置的电源自动关闭， 使得所述显示装置关闭， 避免影响用 户休息， 同时还可以避免能源浪费。  Preferably, when the user state information meets the preset condition, the control unit is further configured to control the power of the display device to be automatically turned off, so that the display device is turned off, to avoid affecting the user's rest, and to avoid energy waste.
本发明实施例提供了一种上述显示装置的工作方法， 所述方法包 括：  The embodiment of the invention provides a working method of the above display device, and the method comprises:
当所述显示装置处于正常工作模式时，  When the display device is in the normal working mode,
所述图像采集单元实时采集用户图像， 并将用户图像传输给控制单 元；  The image acquisition unit collects a user image in real time and transmits the user image to the control unit;
所述控制单元接收用户图像， 通过对用户图像进行分析确定用户状 态信息， 并且当用户状态信息满足预设条件时， 控制所述显示装置进入 省电状态。 The control unit receives the image of the user, and determines the user shape by analyzing the image of the user Status information, and when the user status information satisfies a preset condition, the display device is controlled to enter a power saving state.
通过上述方法， 显示装置可根据用户状态信息是否满足预设条件来 自行判断是否需要进入省电状态， 而不需要用户设定， 不会影响用户的 休息， 同时还可以减少能源浪费。  Through the above method, the display device can determine whether it needs to enter the power-saving state according to whether the user state information satisfies the preset condition, without requiring user setting, does not affect the user's rest, and can also reduce energy waste.
优选地， 所述用户状态信息包括用户上下眼睑之间的距离与该用户 的脸部长度的比值。所述控制单元接收用户图像， 通过对所述用户图像进 行分析确定用户上下眼睑之间的距离与该用户的脸部长度的比值， 当连 续多帧图像中用户上下眼睑之间的距离与该用户的脸部长度的比值均属 于预设范围时， 所述控制单元向显示单元发送关闭信号， 关闭所述显示 单元， 使得所述显示装置进入睡眠模式。  Preferably, the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user. The control unit receives a user image, and determines, by analyzing the user image, a ratio of a distance between a user's upper and lower eyelids to a length of the user's face, and a distance between the user's upper and lower eyelids in the continuous multi-frame image and the user When the ratio of the lengths of the faces all belong to the preset range, the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode.
由于用户清醒时， 上下眼睑之间的距离与该用户的脸部长度的比值 是不断变化的， 而用户在睡着后上下眼睑之间的距离与该用户的脸部长 度的比值一般不发生变化或变化很小。 因此， 通过观测用户上下眼睑之 间的距离与该用户的脸部长度的比值的变化情况， 则可以确定用户是否 已睡着， 进而确定所述显示装置是否要进入睡眠状态， 可避免对用户的 休息造成影响， 同时还可以减少能源浪费。  Since the ratio between the distance between the upper and lower eyelids and the length of the face of the user is constantly changing when the user is awake, the ratio of the distance between the upper and lower eyelids and the length of the user's face generally does not change after the user falls asleep. Or the change is small. Therefore, by observing the change of the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user, it can be determined whether the user has fallen asleep, thereby determining whether the display device is to enter a sleep state, and avoiding the user. Rest has an impact, while also reducing energy wastage.
优选地， 所述方法还包括： 在所述显示装置进入睡眠模式后， 当检 测到用户状态信息发生改变时， 所述控制单元向显示单元发送开启信 号， 开启所述显示单元， 使得所述显示装置进入正常播放模式。 在所述 睡眠模式下， 所述控制单元和图像采集单元仍处于工作状态， 可以继续 采集用户图像和分析确定用户状态信息， 在检测到用户状态信息发生改 变时， 所述控制单元向显示单元发送开启信号， 开启所述显示单元， 使 得所述显示装置进入正常播放模式， 进而使得用户在醒来后不通过按键 输入就可以了解当前的播放状态。  Preferably, the method further includes: after detecting that the user status information changes after the display device enters the sleep mode, the control unit sends an open signal to the display unit, and turns on the display unit, so that the display The device enters the normal play mode. In the sleep mode, the control unit and the image acquisition unit are still in an active state, and may continue to collect user images and analyze and determine user state information. When detecting that the user state information changes, the control unit sends the display unit to the display unit. The signal is turned on, and the display unit is turned on, so that the display device enters a normal play mode, so that the user can understand the current play state without waking up by pressing the button input.
优选地， 所述方法还包括： 当用户状态信息满足预设条件时， 所述 控制单元控制所述显示装置的电源自动关闭， 使得整个所述显示装置关 闭， 不仅能够避免影响用户休息， 同时还可以避免能源浪费。 附图说明  Preferably, the method further includes: when the user state information meets the preset condition, the control unit controls the power of the display device to be automatically turned off, so that the entire display device is turned off, thereby not only avoiding affecting the user's rest, but also Energy waste can be avoided. DRAWINGS
图 1为现有技术中显示装置的工作方法流程示意图；  1 is a schematic flow chart of a working method of a display device in the prior art;
图 2为本发明实施例提供的一种显示装置的结构示意图； 图 3为本发明实施例提供的一种显示装置的工作方法流程示意图； 图 4为本发明实施例提供的另一种显示装置的工作方法流程示意图。 具体实施方式 2 is a schematic structural diagram of a display device according to an embodiment of the present invention; FIG. 3 is a schematic flowchart of a working method of a display device according to an embodiment of the present invention; FIG. 4 is a schematic flowchart of a working method of another display device according to an embodiment of the present invention. detailed description
本发明实施例提供了一种显示装置及其工作方法， 用以解决显示 装置不能自行进入睡眠模式的问题， 从而改善用户体验并节约能源。  Embodiments of the present invention provide a display device and a working method thereof, which are used to solve the problem that the display device cannot enter the sleep mode by itself, thereby improving the user experience and saving energy.
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进 行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。  The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
本发明实施例提供了一种显示装置， 所述显示装置包括显示单元， 所述显示装置还包括图像采集单元和控制单元； 其中， 所述图像采集单 元用于实时采集用户图像， 并将用户图像传输给控制单元； 所述控制单 元用于接收用户图像， 通过对用户图像进行分析确定用户状态信息， 当 用户状态信息满足预设条件时， 控制所述显示装置进入省电状态。  The embodiment of the invention provides a display device, the display device includes a display unit, the display device further includes an image acquisition unit and a control unit, wherein the image acquisition unit is configured to collect a user image in real time, and the user image is The control unit is configured to receive a user image, determine user status information by analyzing the user image, and control the display device to enter a power saving state when the user status information meets the preset condition.
参见图 2， 本发明实施例一提供的显示装置包括： 显示单元 201、 图 像采集单元 203和控制单元 204;  Referring to FIG. 2, a display device according to Embodiment 1 of the present invention includes: a display unit 201, an image capturing unit 203, and a control unit 204;
其中， 所述显示单元 201 , 用于实现图像显示；  The display unit 201 is configured to implement image display.
所述图像采集单元 203 , 用于实时采集用户图像， 并将所述用户图 像传输给所述控制单元 204;  The image acquisition unit 203 is configured to collect a user image in real time, and transmit the user image to the control unit 204;
所述控制单元 204, 用于接收来自图像采集单元 203的用户图像， 通 过对所述用户图像进行分析， 确定用户状态信息， 并且当用户状态信息 满足预设条件时， 控制所述显示装置进入省电状态。  The control unit 204 is configured to receive a user image from the image collection unit 203, determine user status information by analyzing the user image, and control the display device to enter the province when the user status information meets a preset condition. Electrical state.
当用户进入睡眠状态或离开能够观看的范围后， 上述显示装置可根 据所检测到的用户状态信息判断并自动进入省电状态， 不需要用户设 定， 避免影响用户休息， 同时还可以减少能源浪费。  After the user enters the sleep state or leaves the range that can be viewed, the display device can determine and automatically enter the power-saving state according to the detected user state information, does not need user setting, avoids affecting the user's rest, and can also reduce energy waste. .
所述显示装置的工作模式包括： 正常工作模式和睡眠模式； 在所述 正常工作模式下， 所述显示单元 201、 图像采集单元 203和控制单元 204 均处于工作状态； 在所述睡眠模式下， 所述显示单元 201 关闭， 所述图 像采集单元 203和控制单元 204仍保持工作状态。  The working mode of the display device includes: a normal working mode and a sleep mode; in the normal working mode, the display unit 201, the image collecting unit 203, and the control unit 204 are all in an operating state; in the sleep mode, The display unit 201 is turned off, and the image acquisition unit 203 and the control unit 204 remain in an active state.
本发明实施例中， 所述用户状态信息包括用户上下眼睑之间的距离 与该用户的脸部长度的比值。 一般来说， 用户在观看节目时， 用户会不 断的眨眼， 眨眼时上下眼睑之间的距离与脸的比值就会发生变化， 而用 户在睡着后上下眼睑之间的距离与脸的比值一般不会发生变化或变化很 小。 因此， 通过观测用户上下眼睑之间的距离与该用户的脸部长度的比 值的变化情况， 就可以确定用户是否已睡着， 进而确定所述显示装置是 否需要进入省电状态。 In the embodiment of the present invention, the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user. Generally speaking, when the user is watching the program, the user will keep blinking, and when the user winks, the distance between the upper and lower eyelids and the face will change. The ratio of the distance between the upper and lower eyelids and the face of the user after sleep is generally not changed or changed very little. Therefore, by observing the change in the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, it can be determined whether the user has fallen asleep, thereby determining whether the display device needs to enter a power saving state.
所述控制单元 204接收来自图像采集单元 203的用户图像， 确定用户 上下眼睑之间的距离与该用户的脸部长度的比值。 当连续多帧图像中用 户上下眼睑之间的距离与该用户的脸部长度的比值均属于预设范围 [0 , A1] , 或者当连续多帧图像中用户上下眼睑之间的距离与该用户的脸部长 度的比值均属于预设范围（Al， A2]时， 则认为用户已进入睡眠状态， 否 则， 则认为用户处于清醒状态；  The control unit 204 receives the user image from the image acquisition unit 203, and determines the ratio of the distance between the upper and lower eyelids of the user to the length of the face of the user. When the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in the continuous multi-frame image and the user If the ratio of the length of the face belongs to the preset range (Al, A2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state;
例如， 在两分钟内， 所釆集到的用户图像中用户上下眼睑之间的距 离与该用户的脸部长度的比值均属于预设范围 [0， A1] , 或者当连续多帧 图像中用户上下眼睑之间的距离与该用户的脸部长度的比值均属于预设 范围（Al , A2]时， 则认为用户已进入睡眠状态； 相反的， 如果在两分钟 内， 所采集到的用户图像中用户上下眼睑之间的距离与该用户的脸部长 度的比值一部分属于预设范围 [0， Al]， 而另一部分属于预设范围 (Al， A2] , 则认为用户处于清醒状态。  For example, within two minutes, the ratio of the distance between the user's upper and lower eyelids and the user's face length in the user image collected is within the preset range [0, A1], or when the user is in a continuous multi-frame image. When the ratio between the distance between the upper and lower eyelids and the length of the user's face belongs to the preset range (Al, A2), the user is considered to have entered the sleep state; conversely, if the user image is acquired within two minutes, The ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user belongs to the preset range [0, Al], and the other part belongs to the preset range (Al, A2), and the user is considered to be awake.
其中， 当所述比值小于或等于 A1 时， 则认为该用户的眼睛是闭合 的， 当所述比值大于 A1 时， 则认为该用户的眼睛是睁开的， A2为该用 户上下眼睑之间的最大距离与该用户脸部长度的比值； 一般的， 人的脸 部长度约为 20cm， 而睁开状态的眼瞼之间的距离约为 lcm， 因此所述 Al 和 A2的数值分别为 1/100和 1/20。 此外， 所述 A1和 A2的数值还可由用 户根据自身脸部情况进行设定。  Wherein, when the ratio is less than or equal to A1, the user's eyes are considered to be closed, and when the ratio is greater than A1, the user's eyes are considered to be open, and A2 is between the user's upper and lower eyelids. The ratio of the maximum distance to the length of the user's face; in general, the length of the human face is about 20 cm, and the distance between the eyelids in the open state is about 1 cm, so the values of the Al and A2 are 1/100, respectively. And 1/20. In addition, the values of A1 and A2 can also be set by the user according to their own facial conditions.
此外， 所述用户状态信息还可以为其他信息，例如用户上下眼睑之间 的距离， 或者用户的眼部区域面积等。  In addition, the user status information may also be other information, such as the distance between the upper and lower eyelids of the user, or the area of the eye area of the user.
例如，所述控制单元 204还可以通过对用户图像进行分析确定用户的 眼部区域面积， 当连续多帧图像中用户的眼部区域面积， 均属于预设范 围 [0, Bl]， 或者当连续多帧图像中用户的眼部区域面积均属于预设范围 (Bl , B2]时， 则认为用户已进入睡眠状态， 否则， 认为用户处于清醒状 态；  For example, the control unit 204 may further determine the area of the eye area of the user by analyzing the image of the user, and the area of the eye area of the user in consecutive multiple frames of images belongs to the preset range [0, Bl], or when continuous When the area of the eye area of the user in the multi-frame image belongs to the preset range (Bl, B2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state;
在三分钟内， 所采集到的用户图像中用户上的眼部区域面积均属于 预设范围 [0, B1] , 或者当连续多帧图像中用户的眼部区域面积均属于预 设范围（Bl， B2]时， 则认为用户已进入睡眠状态； 相反的， 如果在两分 钟内， 所采集到的用户图像中用户的眼部区域面积一部分属于预设范围 [0, B1] , 而另一部分属于预设范围（Bl , B2]时， 则认为用户处于清醒状 态； Within three minutes, the area of the eye area on the user in the collected user image belongs to the preset range [0, B1], or the area of the eye area of the user in the continuous multi-frame image belongs to the pre-predetermined range. When the range (Bl, B2) is set, the user is considered to have entered the sleep state; conversely, if within two minutes, part of the user's eye area in the collected user image belongs to the preset range [0, B1], When the other part belongs to the preset range (Bl, B2), the user is considered to be awake;
其中， 当所述用户的眼部区域面积小于或等于 B1时， 则认为该用户 的眼睛是闭合的， 当所述用户的眼部区域面积大于 B1时， 则认为该用户 的眼睛是睁开的； 所述 B2为该用户的眼部区域面积的最大值； 一般的， 所述 B1为 10·5平方米 ， 所述 B2为 10·4平方米。 此外， 所述 B1和 B2 的数值还可由用户根据自身情况进行设定。 Wherein, when the area of the eye area of the user is less than or equal to B1, the eyes of the user are considered to be closed, and when the area of the eye area of the user is larger than B1, the eyes of the user are considered to be open. The B2 is the maximum value of the area of the eye area of the user; in general, the B1 is 10. 5 square meters, and the B2 is 10. 4 square meters. In addition, the values of B1 and B2 can also be set by the user according to their own circumstances.
所述控制单元 204 还可以通过对用户图像进行分析确定用户的眼部 区域面积与该用户的脸部面积的比值， 进而确定当前的用户状态信息， 当用户状态信息满足预设条件时， 控制所述显示装置进入省电状态。 所 述通过用户的眼部区域面积与该用户的脸部面积的比值进而确定当前的 用户状态信息的方法与上述的通过用户上下眼睑之间的距离与该用户的 脸部长度的比值进而确定当前用户状态的方法相同， 此处不再赘述。  The control unit 204 may further determine the ratio of the area of the eye area of the user to the face area of the user by analyzing the image of the user, thereby determining the current user state information. When the user state information meets the preset condition, the control center The display device enters a power saving state. The method for determining the current user state information by the ratio of the area of the eye area of the user to the face area of the user, and the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user to determine the current The method of user status is the same and will not be described here.
当确定用户进入睡眠状态后， 所述控制单元 204向显示单元 201发送 关闭信号， 关闭所述显示单元 201， 使得所述显示装置进入睡眠模式； 在 所述睡眠模式下， 可避免亮度和声音对用户休息造成影响， 同时还可以 减少能源浪费。  After determining that the user enters the sleep state, the control unit 204 sends a shutdown signal to the display unit 201, turning off the display unit 201, so that the display device enters a sleep mode; in the sleep mode, brightness and sound pairs can be avoided The impact of user rest can also reduce energy waste.
在所述显示装置进入睡眠模式后， 所述图像采集单元 203 和控制单 元 204仍处于工作状态， 所述图像采集单元 203继续采集用户图像并传输 给控制单元 204， 所述控制单元 204会继续接收来自图像采集单元 203的 用户图像， 并对所接收到的用户图像进行分析， 确定用户的上下眼睑之 间的距离与该用户的脸部长度的比值， 以及确定当前的用户状态信息。 当所述控制单元 204检测到用户状态信息发生改变时， 所述控制单元 204 还用于向显示单元 201发送开启信号， 开启所述显示单元 201， 使得所述 显示装置进入正常工作模式， 进而使得用户在醒来后可以不通过任何操 作就能看到当前节目的播放状态。  After the display device enters the sleep mode, the image acquisition unit 203 and the control unit 204 are still in the working state, and the image acquisition unit 203 continues to collect the user image and transmits it to the control unit 204, and the control unit 204 continues to receive the image. The user image from the image acquisition unit 203 analyzes the received user image, determines the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user, and determines the current user state information. When the control unit 204 detects that the user status information is changed, the control unit 204 is further configured to send an open signal to the display unit 201, and turn on the display unit 201, so that the display device enters a normal working mode, thereby After waking up, the user can see the playing status of the current program without any operation.
当检测到用户状态信息发生改变后， 所述控制单元 204 还用于先将 对发生改变前的用户状态信息的记录进行清零， 这样便于所述控制单元 204判断发生改变后的用户状态信息是否满足预设条件。 因为每个人的脸 和眼长度比是不一样的， 所以 "记录清零" 是为了将用户的个人信息进 行纵向对比， 避免横向对比产生偏差。 因此，当检测到新的用户使用时， 将之前用户的信息清零可以避免两个不同人之间的信息对比， 产生误判 断。 After detecting that the user status information is changed, the control unit 204 is further configured to first clear the record of the user status information before the change occurs, so that the control unit 204 can determine whether the changed user status information is changed. Meet the preset conditions. Because each person's face and eye length ratio is different, "record clear" is to enter the user's personal information. Vertical alignment, avoiding deviations in lateral contrast. Therefore, when a new user is detected, clearing the previous user's information can avoid the comparison of information between two different people, resulting in misjudgment.
本发明实施例二还提供了另一种显示装置， 所述显示装置与图 2 所 述的显示装置结构相同， 两者的区别之处在于， 本发明实施例二所提供 的显示装置中， 当用户状态信息满足预设条件时， 所述控制单元 204 用 于控制所述显示装置的电源自动关闭， 进而使得所述整个显示装置关 闭。 所述显示装置的电源关闭， 表示所述显示单元 201、 图像采集单元 203和控制单元 204全部关闭， 因此， 与实施例一提供的显示装置相比， 实施二所提供的显示装置更加节能， 但是该显示装置在关闭电源后不能 继续检测用户状态信息， 不能够实现在用户醒来后自动进入正常播放模 式的功能。  The second embodiment of the present invention provides another display device. The display device has the same structure as the display device of FIG. 2, and the difference between the two is that the display device provided in the second embodiment of the present invention When the user status information meets the preset condition, the control unit 204 is configured to control the power of the display device to be automatically turned off, thereby causing the entire display device to be turned off. The power of the display device is turned off, indicating that the display unit 201, the image acquisition unit 203, and the control unit 204 are all turned off. Therefore, compared with the display device provided in the first embodiment, the display device provided by the second embodiment is more energy-efficient, but The display device cannot continue to detect the user status information after the power is turned off, and cannot automatically enter the normal play mode after the user wakes up.
上述显示装置不需要用户设定， 可根据用户状态信息自动进入省电 状态， 避免影响用户的休息， 减少了能源浪费， 同时还提高了用户感 受。  The above display device does not need user setting, and can automatically enter the power saving state according to the user state information, thereby avoiding the user's rest, reducing energy waste, and improving the user's feeling.
本发明实施例提供了显示装置的一种工作方法， 该装置包括显示单 元、 控制单元和图像采集单元， 所述方法包括：  The embodiment of the invention provides a working method of a display device, which comprises a display unit, a control unit and an image acquisition unit, the method comprising:
当所述显示装置处于工作模式时， 所述图像采集单元实时采集用户 图像， 并将用户图像传输给控制单元；  When the display device is in an operation mode, the image acquisition unit collects a user image in real time, and transmits the user image to the control unit;
所述控制单元接收用户图像， 通过对用户图像进行分析确定用户状 态信息， 并且当用户状态信息满足预设奈件时， 控制所述显示装置进入 省电状态。  The control unit receives the user image, determines the user status information by analyzing the user image, and controls the display device to enter a power saving state when the user status information satisfies the preset condition.
通过上述方法， 显示装置可根据所检测到的用户状态信息自行判断 是否需要进入省电状态， 不需要用户输入按键进行设定， 保证不影响用 户的休息， 同时还有利于减少能源浪费。  Through the above method, the display device can determine whether it needs to enter the power-saving state according to the detected user state information, and does not require the user to input a button to set, to ensure that the user's rest is not affected, and also to reduce energy waste.
优选地， 所述用户状态信息包括用户上下眼睑之间的距离与该用户 的脸部长度的比值。所述控制单元接收用户图像， 通过对所述用户图像进 行分析确定用户上下眼睑之间的距离与该用户的脸部长度的比值， 当连 续多帧图像中用户上下眼睑之间的距离与该用户的脸部长度的比值均属 于预设范围时， 所述控制单元向显示单元发送关闭信号， 关闭所述显示 单元， 使得所述显示装置进入睡眠模式。  Preferably, the user status information includes a ratio of a distance between the upper and lower eyelids of the user and a length of the face of the user. The control unit receives a user image, and determines, by analyzing the user image, a ratio of a distance between a user's upper and lower eyelids to a length of the user's face, and a distance between the user's upper and lower eyelids in the continuous multi-frame image and the user When the ratio of the lengths of the faces all belong to the preset range, the control unit sends a shutdown signal to the display unit to turn off the display unit, so that the display device enters the sleep mode.
进一步地， 所述方法还包括： 在所述显示装置进入睡眠模式后， 当 检测到用户状态信息发生改变时， 所述控制单元向显示单元发送开启信 号， 开启所述显示单元， 使得所述显示装置进入正常工作模式， 进而使 得用户在醒来后不通过按键输入就可以了解当前的播放状态。 Further, the method further includes: after the display device enters a sleep mode, when When detecting that the user status information is changed, the control unit sends an open signal to the display unit, and the display unit is turned on, so that the display device enters a normal working mode, so that the user can understand after waking up without inputting a key. Current playback status.
当用户状态信息满足预设条件时， 所述控制单元还可以控制所述显 示装置的电源自动关闭， 使得整个所述显示装置关闭， 可有效避免影响 用户休息， 同时还可以减少能源浪费。  When the user status information meets the preset condition, the control unit can also control the power of the display device to be automatically turned off, so that the entire display device is turned off, which can effectively avoid affecting the user's rest, and can also reduce energy waste.
本发明实施例三提供了一种显示装置的工作方法， 参见图 3， 以本 发明实施例一提供的显示装置为例， 详细描述本发明实施提供的显示装 置的工作方法， 所述方法包括：  The third embodiment of the present invention provides a method for operating a display device. Referring to FIG. 3, a display device provided by the first embodiment of the present invention is used as an example to describe a working method of the display device provided by the implementation of the present invention. The method includes:
第一步 301 , 开启所述显示装置， 使得所述显示单元 201、 图像采集 单元 203和控制单元 204处于工作状态。  In a first step 301, the display device is turned on, so that the display unit 201, the image acquisition unit 203, and the control unit 204 are in an active state.
第二步 302， 所述图像采集单元 203实时采集用户图像， 并将所述用 户图像传输给控制单元 204。  In the second step 302, the image capturing unit 203 collects the user image in real time and transmits the user image to the control unit 204.
第三步 303， 所述控制单元 204接收来自图像采集单元 203的用户图 像， 计算每一帧图像中用户上下眼睑之间的距离与该用户的脸部长度的 比值， 并确定当前的用户状态信息； 其中， 当连续多帧图像中用户上下 眼睑之间的距离与该用户的脸部长度的比值均属于预设范围 [0， A1] , 或 者当连续多帧图像中用户上下眼睑之间的距离与该用户的脸部长度的比 值均属于预设范围 (Al , A2]时， 则认为用户已进入睡眠状态； 否则， 则 认为用户处于清醒状态。  In a third step 303, the control unit 204 receives the user image from the image acquisition unit 203, calculates the ratio of the distance between the upper and lower eyelids of the user in each frame image and the length of the face of the user, and determines the current user state information. Wherein, the ratio of the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in consecutive multiple frames of images When the ratio of the length of the face of the user belongs to the preset range (Al, A2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state.
第四步 304, 当确定用户已进入睡眠状态时， 所述控制单元 204向显 示单元发送关闭信号， 关闭所述显示单元， 使得所述显示装置进入睡眠 模式； 否则， 所述显示装置保持正常工作状态。  In a fourth step 304, when it is determined that the user has entered the sleep state, the control unit 204 sends a shutdown signal to the display unit, and the display unit is turned off, so that the display device enters a sleep mode; otherwise, the display device remains in normal operation. status.
进一步地， 上述显示装置进入睡眠模式后， 所述图像采集单元 203 和控制单元 204 仍处于正常工作状态。 当检测到用户状态信息发生改变 时， 所述控制单元 204向所述显示单元 201发送开启信号， 开启所述显示 单元 201 , 使得所述显示装置进入正常工作模式。  Further, after the display device enters the sleep mode, the image acquisition unit 203 and the control unit 204 are still in a normal working state. When it is detected that the user status information changes, the control unit 204 sends an enable signal to the display unit 201 to turn on the display unit 201 to cause the display device to enter the normal operation mode.
上述用于实现智能睡眠功能的方法中， 所述显示装置可根据所检测 到的用户状态信息自行判断是否需要进入睡眠状态， 从而可以避免对用 户的休息造成影响， 同时还可以减少能源浪费。 此外， 用户在醒来后不 需要进行任何的按键输入， 所述装置根据所检测到的用户状态信息， 可 自动进入正常工作模式， 便于用户了解当前节目的播放情况， 改善了用 户感受。 In the above method for implementing the smart sleep function, the display device can determine whether it needs to enter the sleep state according to the detected user state information, thereby avoiding the impact on the rest of the user, and also reducing energy waste. In addition, the user does not need to perform any key input after waking up, and the device can automatically enter the normal working mode according to the detected user state information, so that the user can understand the playing situation of the current program, and the use is improved. Household feelings.
本发明实施例四还提供了另一种显示装置的工作方法， 参见图 4， 以本发明实施例二提供的显示装置为例， 详细描述本发明实施提供的显 示装置的工作方法， 所述方法包括：  The fourth embodiment of the present invention further provides a working method of the display device. Referring to FIG. 4, the display device provided by the second embodiment of the present invention is used as an example to describe the working method of the display device provided by the implementation of the present invention. Includes:
第一步 401 , 开启所述显示装置， 使得所述显示单元 201、 图像采集 单元 203和控制单元 204处于工作状态。  In a first step 401, the display device is turned on, so that the display unit 201, the image acquisition unit 203, and the control unit 204 are in an active state.
第二步 402, 所述图像采集单元 203实时采集用户图像， 并将所述用 户图像传输给控制单元 204。  In the second step 402, the image acquisition unit 203 collects the user image in real time and transmits the user image to the control unit 204.
第三步 403 , 控制单元 204接收来自图像采集单元 203的用户图像， 计算每一帧图像中用户上下眼睑之间的距离与该用户的脸部长度的比 值， 并确定当前的用户状态信息； 其中， 当连续多帧图像中用户上下眼 睑之间的距离与该用户的脸部长度的比值均属于预设范围 [0, A1] , 或者 当连续多帧图像中用户上下眼睑之间的距离与该用户的脸部长度的比值 均不属于预设范围 (Al， A2]时， 则认为用户已进入睡眠状态； 否则， 则 认为用户处于清醒状态。  In a third step 403, the control unit 204 receives the user image from the image acquisition unit 203, calculates a ratio of the distance between the upper and lower eyelids of the user in each frame image and the length of the face of the user, and determines current user state information; When the ratio between the distance between the upper and lower eyelids of the user and the length of the face of the user in the continuous multi-frame image belongs to the preset range [0, A1], or the distance between the upper and lower eyelids of the user in the continuous multi-frame image If the ratio of the length of the user's face does not belong to the preset range (Al, A2), the user is considered to have entered the sleep state; otherwise, the user is considered to be in the awake state.
第四步 404， 当确定用户已进入睡眠状态时， 所述控制单元 204控制 所述显示装置的电源自动关闭， 使得整个所述显示装置关闭； 否则， 所 述显示装置维持正常工作状态。  In a fourth step 404, when it is determined that the user has entered the sleep state, the control unit 204 controls the power of the display device to be automatically turned off, so that the entire display device is turned off; otherwise, the display device maintains a normal working state.
本发明实施例四提供的方法中， 所述显示装置同样可以根据用户状 态信息自行判断是否需要进入睡眠状态， 能够有效避免声音和亮度对用 户的休息造成影响， 且还可以避免能源浪费。  In the method provided in Embodiment 4 of the present invention, the display device can also determine whether it needs to enter a sleep state according to the user status information, and can effectively prevent the sound and brightness from affecting the rest of the user, and can also avoid energy waste.
综上， 本发明实施例提供的显示装置中设置图像采集单元和控制单 元， 通过所述图像采集单元实时采集用户图像， 并将所述用户图像传输 给控制单元； 所述控制单元用户接收所述用户图像， 通过对所述用户图 像进行分析确定用户状态信息， 当所述用户状态信息满足预设条件时， 控制所述显示装置进入省电状态， 即自动开启睡眠模式或自动关闭显示 装置， 不需要用户任何的按键输入， 避免影响用户的休息， 改善了用户 感受， 同时还可以节约能源。  In summary, the image display unit and the control unit are provided in the display device provided by the embodiment of the present invention, the user image is collected in real time by the image acquisition unit, and the user image is transmitted to the control unit; the control unit user receives the User image, determining user state information by analyzing the user image, and when the user state information meets a preset condition, controlling the display device to enter a power saving state, that is, automatically turning on the sleep mode or automatically turning off the display device, Users need any key input to avoid affecting the user's rest, improve the user's feelings, and save energy.
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不 脱离本发明的精神和范围。 这样， 倘若本发明的这些修改和变型属于 本发明权利要求及其等同技术的范围之内， 则本发明也意图包含这些 改动和变型在内。  It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications

Claims

权 利 要 求 Rights request
1. 一种显示装置， 所述显示装置包括显示单元， 其特征在于， 所述 显示装置还包括图像采集单元和控制单元； 其中， A display device, the display device comprising a display unit, wherein the display device further comprises an image acquisition unit and a control unit;
所述图像采集单元用于实时采集用户图像， 并将用户图像传输给控 制单元； 以及  The image acquisition unit is configured to collect a user image in real time and transmit the user image to the control unit;
所述控制单元用于接收用户图像， 通过对用户图像进行分析确定用 户状态信息， 并且当用户状态信息满足预设条件时， 控制所述显示装置 进入省电状态。  The control unit is configured to receive a user image, determine user status information by analyzing the user image, and control the display device to enter a power saving state when the user status information satisfies a preset condition.
2. 如权利要求〗所述的显示装置， 其特征在于， 所述用户状态信息 包括用户上下眼睑之间的距离与该用户的脸部长度的比值，并且所述预设 条件是连续多帧所述图像中用户上下眼睑之间的距离与该用户的脸部长 度的比值均属于预设范围。  2. The display device according to claim 1, wherein the user state information comprises a ratio of a distance between a user's upper and lower eyelids and a face length of the user, and the preset condition is continuous multiple frames. The ratio of the distance between the upper and lower eyelids of the user in the image and the length of the face of the user belongs to a preset range.
3. 如权利要求 1所述的显示装置， 其特征在于， 所述用户状态信息 包括眼部区域的面积，并且所述预设条件是连续多帧所述图像中眼部区域 的面积均属于预设范围。  The display device according to claim 1, wherein the user state information includes an area of an eye region, and the preset condition is that the area of the eye region in the image is continuous for a plurality of frames. Set the scope.
4. 如权利要求 1所述的显示装置， 其特征在于， 当所述用户状态信 息满足第一预设条件时，所述控制单元还用于控制所述显示装置关闭显示 单元， 从而进入睡眠模式。  The display device according to claim 1, wherein the control unit is further configured to control the display device to turn off the display unit to enter the sleep mode when the user state information satisfies the first preset condition. .
5. 如权利要求 1所述的显示装置， 其特征在于， 当所述用户状态信 息满足第二预设条件时 , 所述控制单元还用于控制所述显示装置的电源 自动关闭。  The display device according to claim 1, wherein the control unit is further configured to control the power of the display device to be automatically turned off when the user state information satisfies a second preset condition.
6. 如权利要求 4所述的显示装置， 其特征在于， 当所述显示装置进 入睡眠模式后， 所述控制单元还用于在检测到用户状态信息发生改变时 控制所述控制装置开启所述显示单元， 使得所述显示装置进入正常工作 模式。  The display device according to claim 4, wherein, after the display device enters a sleep mode, the control unit is further configured to: when the user state information is detected to be changed, control the control device to open the a display unit that causes the display device to enter a normal operating mode.
7. 权利要求 1-6中任一权项所述的显示装置的一种工作方法， 其特 征在于， 所述方法包括：  7. A method of operating a display device according to any of claims 1-6, wherein the method comprises:
当所述显示装置处于正常工作模式时，  When the display device is in the normal working mode,
所述图像采集单元实时采集用户图像， 并将用户图像传输给控制单 元；  The image acquisition unit collects a user image in real time and transmits the user image to the control unit;
所述控制单元接收用户图像， 通过对用户图像进行分析确定用户状 态信息， 当用户状态信息满足预设条件时， 控制所述显示装置进入省电 状态。 The control unit receives the image of the user, and determines the user shape by analyzing the image of the user The status information controls the display device to enter a power saving state when the user status information satisfies a preset condition.
8. 如权利要求 7所述的方法， 其特征在于， 所述用户状态信息包括 用户上下眼睑之间的距离与该用户的脸部长度的比值，并且所述预设条件 是连续多帧所述图像中用户上下眼睑之间的距离与该用户的脸部长度的 比值均属于预设范围。  The method according to claim 7, wherein the user state information comprises a ratio of a distance between a user's upper and lower eyelids and a face length of the user, and the preset condition is continuous multi-frame The ratio of the distance between the upper and lower eyelids of the user in the image and the length of the face of the user belongs to a preset range.
9. 如权利要求 7所述的方法， 其特征在于， 当所述用户状态信息满 足第一预设条件时， 所述控制单元控制所述显示装置关闭显示单元， 从而 进入睡眠模式。  9. The method according to claim 7, wherein the control unit controls the display device to turn off the display unit when the user state information satisfies the first preset condition, thereby entering the sleep mode.
10. 如权利要求 7所述的方法， 其特征在于， 当所述用户状态信息满 足第二预设条件时， 所述控制单元控制所述显示装置的电源自动关闭。  10. The method according to claim 7, wherein the control unit controls the power of the display device to be automatically turned off when the user state information satisfies a second preset condition.
1 1. 如权利要求 9所述的方法， 其特征在于， 所述方法还包括： 在所 述显示装置进入睡眠模式后， 当检测到用户状态信息发生改变时， 所述 控制单元控制所述控制装置开启所述显示单元， 使得所述显示装置进入 正常工作模式。  The method according to claim 9, wherein the method further comprises: after the display device enters the sleep mode, when detecting that the user status information changes, the control unit controls the control The device turns on the display unit to cause the display device to enter a normal operating mode.
PCT/CN2014/000541 2013-10-28 2014-05-29 Display device and operating method thereof WO2015062159A1 (en)

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