WO2017096767A1 - Method and system for measuring viewing distance of user - Google Patents

Method and system for measuring viewing distance of user Download PDF

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Publication number
WO2017096767A1
WO2017096767A1 PCT/CN2016/084437 CN2016084437W WO2017096767A1 WO 2017096767 A1 WO2017096767 A1 WO 2017096767A1 CN 2016084437 W CN2016084437 W CN 2016084437W WO 2017096767 A1 WO2017096767 A1 WO 2017096767A1
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WO
WIPO (PCT)
Prior art keywords
television
signal strength
remote controller
viewing distance
average signal
Prior art date
Application number
PCT/CN2016/084437
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French (fr)
Chinese (zh)
Inventor
曹芝勇
曾庆忠
Original Assignee
深圳Tcl数字技术有限公司
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Publication of WO2017096767A1 publication Critical patent/WO2017096767A1/en

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    • 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]
    • 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]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
    • 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
    • H04N21/442—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

Definitions

  • the present invention relates to the field of multimedia televisions, and in particular, to a method and system for detecting a user's viewing distance.
  • the main object of the present invention is to provide a method and system for detecting a user's viewing distance, and to solve the technical problem of measuring the distance between the user and the television in the prior art.
  • the present invention provides a method for detecting a viewing distance of a user, including the steps of:
  • the television pre-stores a set viewing distance corresponding to the display mode of various screen sizes
  • the television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command
  • the television receives a remote command sent by the remote controller
  • the television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command
  • the television calculates a distance between the television and the remote controller according to the average signal strength
  • the television When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance;
  • the communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
  • the television determines whether the average signal strength is within a preset range
  • the method further includes:
  • the television retransmits the communication signal to the remote controller.
  • the present invention also provides a method for detecting a viewing distance of a user, including the steps of:
  • the television receives a remote command sent by the remote controller
  • the television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command
  • the television calculates a distance between the television and the remote controller according to the average signal strength
  • the television When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance.
  • the method before the step of the television receiving the remote control command sent by the remote controller, the method further includes:
  • the television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command.
  • the television sends a communication signal to the remote controller, for the remote controller to calculate an average signal strength of the communication signal received within a preset time, and load the average signal strength to the remote control command Before the step of sending the remote command, the method further includes:
  • the television pre-stores the set viewing distances of the various screen sizes corresponding to the display mode.
  • the method further includes:
  • the method further includes:
  • the television retransmits the communication signal to the remote controller.
  • the communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
  • the present invention also provides a system for detecting a viewing distance of a user, the device comprising:
  • a receiving module configured to receive a remote control command sent by the remote controller
  • a parsing module configured to parse the remote command, and obtain an average signal strength of a pre-loaded communication signal in the remote command
  • a calculation module configured to calculate a distance between the television and the remote controller according to the average signal strength
  • the prompting module is configured to generate prompt information to prompt the user to adjust the viewing distance when the distance is not within the set viewing distance.
  • the system for detecting a user viewing distance further includes:
  • a first sending module configured to send a communication signal to the remote controller, where the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength to the remote controller
  • the remote command is sent in the command.
  • the system for detecting a viewing distance of a user further includes a storage module, configured to pre-store a set viewing distance of the corresponding display mode of the various screen sizes.
  • the system for detecting a viewing distance of a user further includes:
  • a determining module configured to determine whether the average signal strength is within a preset range
  • a processing module if the average signal strength is within a preset range, performing steps: according to The average signal strength is calculated as the distance between the television and the remote controller.
  • the first sending module is further configured to resend a communication signal to the remote controller if the average signal strength is not within a preset range.
  • the first sending module is a radio frequency transmitting module
  • the receiving module is an infrared signal receiving module.
  • the invention calculates the distance between the television and the remote controller according to the average signal strength of the preloaded communication signal in the remote control command by receiving the remote controller command sent by the remote controller, when the distance is not in the set viewing When the distance is within the range, the user is prompted to adjust the viewing distance.
  • the distance from the remote controller ie the user, based on the average signal strength of the communication signal, the accuracy of measuring the distance between the television and the user is improved.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for detecting a viewing distance of a user according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for detecting a viewing distance of a user according to the present invention
  • FIG. 3 is a schematic flow chart of a third embodiment of a method for detecting a viewing distance of a user according to the present invention.
  • FIG. 4 is a schematic diagram of functional modules of a first embodiment of a system for detecting a user's viewing distance according to the present invention
  • FIG. 5 is a schematic diagram of functional modules of a second embodiment of a system for detecting a user's viewing distance according to the present invention.
  • FIG. 6 is a schematic diagram of functional modules of a third embodiment of a system for detecting a user's viewing distance according to the present invention.
  • the present invention provides a method of detecting a viewing distance of a user.
  • FIG. 1 is a schematic flowchart diagram of a first embodiment of a method for detecting a viewing distance of a user according to the present invention.
  • the method for detecting a viewing distance of a user includes:
  • Step S10 the television receives a remote control command sent by the remote controller
  • the television receives a remote control command sent by the remote controller, and the remote control command preloads an average signal strength of the communication signal sent by the television to the remote controller.
  • the television user first defines an encoding format of the remote controller remote command, and the code of the remote controller remote command is composed of a boot code, a client code, a data code, and an intensity code.
  • Step S20 the television parses the remote control command to obtain an average signal strength of the communication signal preloaded in the remote control command
  • Step S30 the television calculates a distance between the television and the remote controller according to the average signal strength
  • the television calculates a distance between the television itself and the remote controller based on the average signal strength, the distance being denoted as r.
  • the P T is an average signal strength of a communication signal sent by the television to the remote controller; the n is a propagation factor whose value is determined by an environment in which the communication signal propagates.
  • the absolute value of the energy such as when the average energy of the remote command signal sent by the remote controller is 40 dBm, then the value corresponding to the parameter A is 40.
  • the n represents the rate at which the strength of the communication signal is attenuated as the transmission distance increases during the transmission of the communication signal, and the magnitude of the value corresponding to the n is determined by the environment in which the communication signal propagates.
  • the designer simulates the home environment according to the actual situation of the television and the remote controller, performs repeated tests, and finally determines the values corresponding to the reasonable A and n.
  • the value corresponding to A is an average of the 38 dBm, 40 dBm, and 42 dBm, and 40 dBm of the value corresponding to the A is obtained.
  • the value corresponding to n is an average of the 2.7, 3, and 3.3, and the value corresponding to the n is 3.
  • step S40 when the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance.
  • the television compares the calculated distance r with the stored set viewing distance, and determines whether the distance r is within the set viewing distance range, if the distance r is not within the set viewing distance range
  • the television generates prompt information and displays the prompt information on its display interface to prompt the user to adjust the viewing distance.
  • the set viewing distance is the optimal viewing distance of the user.
  • the method for prompting the user to adjust the viewing distance may also be to prompt the user to adjust the viewing distance by flashing the indicator light, or to output a specific sound through the speaker to prompt the user to adjust the viewing distance and the like.
  • the distance between the television and the remote controller is calculated according to the average signal strength of the preloaded communication signal in the remote command, when the distance is not set.
  • the user is prompted to adjust the viewing distance.
  • FIG. 2 is a schematic flowchart diagram of a second embodiment of a method for detecting a viewing distance of a user according to the present invention. Based on the first embodiment, a second embodiment of a method for detecting a viewing distance of a user according to the present invention is proposed.
  • the method before the step S10, the method further includes:
  • step S50 the television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes.
  • the television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes, and the optimal viewing distances of the display modes corresponding to the various screen sizes pre-stored by the television are as shown in Table 2:
  • Step S60 The television sends a communication signal to the remote controller, so that the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength into the remote control command. Sending the remote command;
  • a wireless signal transmitting node is installed on the television, and a wireless signal receiving node is installed on the remote controller.
  • the television transmits a communication signal to the remote controller through the wireless signal transmitting node.
  • the communication signal is a wireless signal. That is, the television transmits a wireless signal to the remote controller through a wireless transmitting node, and the remote controller receives the wireless signal through the wireless receiving node.
  • the remote controller receives m wireless signals within a preset time
  • the average signal strength of the m wireless signals is calculated.
  • the preset time is 1 second.
  • the remote controller when the remote controller receives m wireless signals within one second, calculating an average signal strength P R of the m wireless signals, that is, And calculating the calculated average signal strength P R into the remote command, preferably loading the average signal strength P R into the intensity code in the remote command and transmitting to the television.
  • the television does not receive the remote control command, it is determined that detecting the user viewing distance fails.
  • the remote controller is an infrared remote controller
  • the remote controller when the remote controller sends a remote command to the television, because the wireless signal transmitted by the infrared remote controller has directness, if there is a human body in the middle Or the occlusion of other objects, the television will not be able to receive the key command sent by the remote controller.
  • the communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
  • the television uses radio frequency communication to transmit a communication signal to the remote controller, and the remote control command sent by the television to the remote controller is an infrared signal, that is, the remote controller sends the remote control command to the office through infrared technology. Said TV.
  • the technology for the television to transmit a communication signal to the remote controller includes, but is not limited to, a radio frequency communication technology. However, in order to accurately measure the distance between the television and the remote controller, the television does not use infrared technology to transmit communication signals to the remote controller.
  • the average signal strength of the plurality of communication signals transmitted by the television is calculated by the remote controller, the interference occurring during the transmission of the communication signal is reduced, and the viewing distance of the detected user is more accurate, and the complicated component is not required to be reduced. Cost increases the competitiveness of the product.
  • FIG. 3 is a schematic flowchart diagram of a third embodiment of a method for detecting a viewing distance of a user according to the present invention. Based on the first embodiment, a third embodiment of a method for detecting a viewing distance of a user according to the present invention is proposed.
  • the method further includes:
  • Step S70 the television determines whether the average signal strength is within a preset range
  • the television parses the average signal strength of the communication signal from the remote control command, it is determined whether the average signal strength is within a preset range.
  • the preset range is set according to a specific situation of a transmission environment of the communication signal, such as when the television transmits m communication signals in one second to the remote controller, the m communication signals are When the television is just sent out, the signal strength is consistent. If the signal strengths of the m communication signals are 45 db, the average signal strength of the m communication signals at the television end is 45 db, because According to the environmental impact, when the communication signal is transmitted to the remote controller, a certain degree of attenuation occurs, and according to the current transmission environment, the preset range can be set to 38db to 45db.
  • Step S80 if the average signal strength is not within the preset range, resending the communication signal to the remote controller.
  • the remote controller When the television determines that the average signal strength is not within a preset range, that is, the remote controller receives too much attenuation of one or more communication signals transmitted by the television, or an abnormality occurs, causing the remote controller to calculate When the obtained average signal strength is not within the preset range, the television does not calculate the distance from the remote controller according to the average signal strength, but retransmits the communication signal to the remote controller for the The remote controller recalculates the average signal strength of the received communication signal within a preset time. When the television determines that the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
  • the television parses the average signal strength in the remote command, it is determined whether the average signal strength is within a preset range, and when the average signal strength is not within the preset range, the average is not based on the average
  • the signal strength is calculated and the distance between the remote controllers, that is, the detection of the viewing distance of the user is not performed, and the accuracy of the detection result is improved.
  • the present invention further provides a system for detecting a viewing distance of a user.
  • FIG. 4 is a schematic diagram of functional modules of a first embodiment of a system for detecting a user's viewing distance according to the present invention.
  • the system for detecting a user viewing distance includes:
  • the receiving module 10 is configured to receive a remote control command sent by the remote controller
  • the television receives a remote control command sent by the remote controller, and the remote control command preloads an average signal strength of the communication signal sent by the television to the remote controller.
  • the television user first defines an encoding format of the remote controller remote command, and the code of the remote controller remote command is composed of a boot code, a client code, a data code, and an intensity code.
  • the parsing module 20 is configured to parse the remote control command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
  • the calculating module 30 is configured to calculate a distance between the television and the remote controller according to the average signal strength
  • the television calculates a distance between the television itself and the remote controller based on the average signal strength, the distance being denoted as r.
  • the P T is an average signal strength of a communication signal sent by the television to the remote controller; the n is a propagation factor whose value is determined by an environment in which the communication signal propagates.
  • the absolute value of the energy such as when the average energy of the remote command signal sent by the remote controller is 40 dBm, then the value corresponding to the parameter A is 40.
  • the n represents the rate at which the strength of the communication signal is attenuated as the transmission distance increases during the transmission of the communication signal, and the magnitude of the value corresponding to the n is determined by the environment in which the communication signal propagates.
  • the designer simulates the home environment according to the actual situation of the television and the remote controller, performs repeated tests, and finally determines the values corresponding to the reasonable A and n.
  • the value corresponding to A is an average of the 38 dBm, 40 dBm, and 42 dBm, and 40 dBm of the value corresponding to the A is obtained.
  • the value corresponding to n is an average of the 2.7, 3, and 3.3, and the value corresponding to the n is 3.
  • the prompting module 40 is configured to generate prompt information to prompt the user to adjust the viewing distance when the distance is not within the set viewing distance range.
  • the television compares the calculated distance r with the stored set viewing distance, and determines whether the distance r is within the set viewing distance range, if the distance r is not within the set viewing distance range
  • the television generates prompt information and displays the prompt information on its display interface to prompt the user to adjust the viewing distance.
  • the set viewing distance is the optimal viewing distance of the user.
  • the method for prompting the user to adjust the viewing distance may also be to prompt the user to adjust the viewing distance by flashing the indicator light, or to output a specific sound through the speaker to prompt the user to adjust the viewing distance and the like.
  • the distance between the television and the remote controller is calculated according to the average signal strength of the preloaded communication signal in the remote command, when the distance is not set.
  • the user is prompted to adjust the viewing distance.
  • FIG. 5 is a schematic diagram of functional modules of a second embodiment of an apparatus for detecting a user's viewing distance according to the present invention. Based on the first embodiment, a second embodiment of the apparatus for detecting a viewing distance of a user according to the present invention is proposed.
  • the device for detecting a viewing distance of a user further includes:
  • the storage module 50 is configured to pre-store a set viewing distance of each screen size corresponding to the display mode.
  • the television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes, and the optimal viewing distances of the display modes corresponding to the various screen sizes pre-stored by the television are as shown in Table 2:
  • the first sending module 60 is configured to send a communication signal to the remote controller, where the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength to the Sending the remote control command in a remote command;
  • a wireless signal transmitting node is installed on the television, and a wireless signal receiving node is installed on the remote controller.
  • the television transmits a communication signal to the remote controller through the wireless signal transmitting node.
  • the communication signal is a wireless signal. That is, the television transmits a wireless signal to the remote controller through a wireless transmitting node, and the remote controller receives the wireless signal through the wireless receiving node.
  • the remote controller receives m wireless signals within a preset time
  • the average signal strength of the m wireless signals is calculated.
  • the preset time is 1 second.
  • the remote controller when the remote controller receives m wireless signals within one second, calculating an average signal strength P R of the m wireless signals, that is, And calculating the calculated average signal strength P R into the remote command, preferably loading the average signal strength P R into the intensity code in the remote command and transmitting to the television.
  • the television does not receive the remote control command, it is determined that detecting the user viewing distance fails.
  • the remote controller is an infrared remote controller
  • the remote controller when the remote controller sends a remote command to the television, because the wireless signal transmitted by the infrared remote controller has directness, if there is a human body in the middle Or the occlusion of other objects, the television will not be able to receive the key command sent by the remote controller.
  • the first sending module is a radio frequency transmitting module
  • the receiving module is an infrared signal receiving module.
  • the first sending module 60 is a radio frequency transmitting module
  • the receiving module 10 is an infrared signal receiving module. That is, the television transmits communication signals to the remote controller by using radio frequency communication, and the remote control command sent by the television to the remote controller is an infrared signal, that is, the remote controller sends the remote control command to the infrared controller.
  • the television The technology for the television to transmit a communication signal to the remote controller includes, but is not limited to, a radio frequency communication technology. However, in order to accurately measure the distance between the television and the remote controller, the television does not use infrared technology to transmit communication signals to the remote controller.
  • the average signal strength of the plurality of communication signals transmitted by the television is calculated by the remote controller, the interference occurring during the transmission of the communication signal is reduced, and the viewing distance of the detected user is more accurate, and the complicated component is not required to be reduced. Cost increases the competitiveness of the product.
  • FIG. 6 is a schematic diagram of functional modules of a third embodiment of an apparatus for detecting a user's viewing distance according to the present invention. Based on the first embodiment, a third embodiment of the apparatus for detecting a viewing distance of a user according to the present invention is proposed.
  • the device for detecting a viewing distance of a user further includes:
  • the determining module 70 is configured to determine whether the average signal strength is within a preset range
  • the television parses the average signal strength of the communication signal from the remote control command, it is determined whether the average signal strength is within a preset range.
  • the preset range is set according to a specific situation of a transmission environment of the communication signal, such as m communications sent by the television in one second.
  • the signal is sent to the remote controller, the signal strengths of the m communication signals are consistent when the television is just sent out. If the signal strengths of the m communication signals are 45 db, the m communications are The average signal strength of the signal at the television end is 45 db, because due to environmental influences, the communication signal may be attenuated to some extent when transmitted to the remote controller, according to the current transmission environment, as described
  • the preset range can be set from 38db to 45db.
  • the processing module 80 is configured to: if the average signal strength is within a preset range, perform the step of: calculating a distance from the remote controller according to the average signal strength.
  • the first sending module 60 is further configured to resend the communication signal to the remote controller if the average signal strength is not within the normal range.
  • the remote controller When the television determines that the average signal strength is not within a preset range, that is, the remote controller receives too much attenuation of one or more communication signals transmitted by the television, or an abnormality occurs, causing the remote controller to calculate When the obtained average signal strength is not within the preset range, the television does not calculate the distance from the remote controller according to the average signal strength, but retransmits the communication signal to the remote controller for the The remote controller recalculates the average signal strength of the received communication signal within a preset time. When the television determines that the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
  • the television parses the average signal strength in the remote command, it is determined whether the average signal strength is within a preset range, and when the average signal strength is not within the preset range, the average is not based on the average
  • the signal strength is calculated and the distance between the remote controllers, that is, the detection of the viewing distance of the user is not performed, and the accuracy of the detection result is improved.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • a storage medium such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Abstract

Disclosed is a method for measuring the viewing distance of a user. The method comprises the steps of: a television receives a remote control instruction sent by a remote control; the television parses the remote control instruction to obtain the average signal intensity of pre-loaded communication signals in the remote control instruction; the television calculates the distance between the television and the remote control according to the average signal intensity; when the distance is not within a set viewing distance range, the television generates prompt information to prompt the user to adjust the viewing distance. Also provided is a system for measuring the viewing distance of a user. The present invention improves the accuracy of measuring the viewing distance between a user and a television, and reduces the costs for measuring the viewing distance between the user and the television.

Description

检测用户观看距离的方法和系统Method and system for detecting user viewing distance 技术领域Technical field
本发明涉及多媒体电视领域，尤其涉及一种检测用户观看距离的方法和系统。The present invention relates to the field of multimedia televisions, and in particular, to a method and system for detecting a user's viewing distance.
背景技术Background technique
随着物质生活的丰富，电视已经成为人们生活中不可缺少的电器产品。电视屏幕的尺寸越来越大，清晰度也越来越高，给人们带来了震撼的视听享受，但是，随着人们对健康的日益关注和高画质的要求，用户在收看电视时也越来越重视电视对视力及身体健康的影响。合理的电视观看距离不仅能够有效地保护视力，还能最大限度地发挥电视的画质效果。With the richness of material life, television has become an indispensable electrical product in people's lives. The size of TV screens is getting bigger and bigger, and the definition is getting higher and higher, which brings people a shocking audio-visual enjoyment. However, with the increasing attention to health and high-quality requirements, users also watch TV. More and more attention is paid to the impact of television on vision and physical health. A reasonable TV viewing distance not only effectively protects your eyesight, but also maximizes the quality of your TV.
现在一般都是通过在电视上新增外界模块，例如超声波和红外线测距，然而超声波在传输过程中衰减明显，会影响其测量距离的有效范围，而且它测量的距离短。另外，红外线在传输过程中易于受物体或墙体阻隔，且传输距离较短，定位系统复杂度高，实用性低，测量结果准确度低。Nowadays, external modules such as ultrasonic and infrared ranging are added to the TV. However, the ultrasonic wave is obviously attenuated during transmission, affecting the effective range of the measuring distance, and the measuring distance is short. In addition, infrared rays are easily blocked by objects or walls during transmission, and the transmission distance is short, the positioning system has high complexity, low practicability, and low accuracy of measurement results.
发明内容Summary of the invention
本发明的主要目的在于提供一种检测用户观看距离的方法和系统，解决现有技术测量用户与电视之间距离准确低的技术问题。The main object of the present invention is to provide a method and system for detecting a user's viewing distance, and to solve the technical problem of measuring the distance between the user and the television in the prior art.
为实现上述目的，本发明提供一种检测用户观看距离的方法，包括步骤：To achieve the above object, the present invention provides a method for detecting a viewing distance of a user, including the steps of:
电视预先存储各种屏幕尺寸对应显示模式的设定观看距离；The television pre-stores a set viewing distance corresponding to the display mode of various screen sizes;
电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令；The television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command
电视接收遥控器发送的遥控指令；The television receives a remote command sent by the remote controller;
电视解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；The television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
电视根据所述平均信号强度计算得到该电视与所述遥控器之间的距离； The television calculates a distance between the television and the remote controller according to the average signal strength;
当所述距离未在设定观看距离范围内时，电视产生提示信息以提示用户调整观看距离；When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance;
其中，所述电视发送给所述遥控器的通信信号采用射频通信，所述电视接收到的所述遥控指令为红外信号。The communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
优选地，所述电视解析所述遥控指令，得到所述遥控指令中预先加载的平均信号强度的步骤之后，还包括：Preferably, after the step of parsing the remote control command to obtain the average signal strength preloaded in the remote control command, the method further includes:
电视判断所述平均信号强度是否在预设范围内；The television determines whether the average signal strength is within a preset range;
若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。If the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
优选地，所述电视判断所述平均信号强度是否在预设范围内的步骤之后，还包括：Preferably, after the step of determining, by the television, whether the average signal strength is within a preset range, the method further includes:
若所述平均信号强度未在预设范围内，则电视重新发送通信信号给所述遥控器。If the average signal strength is not within the preset range, the television retransmits the communication signal to the remote controller.
此外，为实现上述目的，本发明还提供一种检测用户观看距离的方法，包括步骤：In addition, in order to achieve the above object, the present invention also provides a method for detecting a viewing distance of a user, including the steps of:
电视接收遥控器发送的遥控指令；The television receives a remote command sent by the remote controller;
电视解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；The television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
电视根据所述平均信号强度计算得到该电视与所述遥控器之间的距离；The television calculates a distance between the television and the remote controller according to the average signal strength;
当所述距离未在设定观看距离范围内时，电视产生提示信息以提示用户调整观看距离。When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance.
优选地，所述电视接收遥控器发送的遥控指令的步骤之前，还包括：Preferably, before the step of the television receiving the remote control command sent by the remote controller, the method further includes:
电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令。The television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command.
优选地，所述电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令的步骤之前，还包括：Preferably, the television sends a communication signal to the remote controller, for the remote controller to calculate an average signal strength of the communication signal received within a preset time, and load the average signal strength to the remote control command Before the step of sending the remote command, the method further includes:
电视预先存储各种屏幕尺寸对应显示模式的设定观看距离。 The television pre-stores the set viewing distances of the various screen sizes corresponding to the display mode.
优选地，所述电视解析所述遥控指令，得到所述遥控指令中预先加载的平均信号强度的步骤之后，还包括：Preferably, after the step of parsing the remote control command to obtain the average signal strength preloaded in the remote control command, the method further includes:
电视判断所述平均信号强度是否在预设范围内；The television determines whether the average signal strength is within a preset range;
若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。If the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
优选地，所述电视判断所述平均信号强度是否在预设范围内的步骤之后，还包括：Preferably, after the step of determining, by the television, whether the average signal strength is within a preset range, the method further includes:
若所述平均信号强度未在预设范围内，则电视重新发送通信信号给所述遥控器。If the average signal strength is not within the preset range, the television retransmits the communication signal to the remote controller.
优选地，所述电视发送给所述遥控器的通信信号采用射频通信，所述电视接收到的所述遥控指令为红外信号。Preferably, the communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
此外，为实现上述目的，本发明还提供一种检测用户观看距离的系统，所述装置包括：In addition, in order to achieve the above object, the present invention also provides a system for detecting a viewing distance of a user, the device comprising:
接收模块，用于接收遥控器发送的遥控指令；a receiving module, configured to receive a remote control command sent by the remote controller;
解析模块，用于解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；a parsing module, configured to parse the remote command, and obtain an average signal strength of a pre-loaded communication signal in the remote command;
计算模块，用于根据所述平均信号强度计算得到电视与所述遥控器之间的距离；a calculation module, configured to calculate a distance between the television and the remote controller according to the average signal strength;
提示模块，用于当所述距离未在设定观看距离范围内时，产生提示信息以提示用户调整观看距离。The prompting module is configured to generate prompt information to prompt the user to adjust the viewing distance when the distance is not within the set viewing distance.
优选地，所述检测用户观看距离的系统，还包括：Preferably, the system for detecting a user viewing distance further includes:
第一发送模块，用于发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令。a first sending module, configured to send a communication signal to the remote controller, where the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength to the remote controller The remote command is sent in the command.
优选地，所述检测用户观看距离的系统，还包括存储模块，用于预先存储各种屏幕尺寸对应显示模式的设定观看距离。Preferably, the system for detecting a viewing distance of a user further includes a storage module, configured to pre-store a set viewing distance of the corresponding display mode of the various screen sizes.
优选地，所述检测用户观看距离的系统还包括：Preferably, the system for detecting a viewing distance of a user further includes:
判断模块，用于判断所述平均信号强度是否在预设范围内；a determining module, configured to determine whether the average signal strength is within a preset range;
处理模块，用于若所述平均信号强度在预设范围内，则执行步骤：根据 所述平均信号强度计算得到该电视与所述遥控器之间的距离。a processing module, if the average signal strength is within a preset range, performing steps: according to The average signal strength is calculated as the distance between the television and the remote controller.
优选地，所述第一发送模块还用于若所述平均信号强度未在预设范围内，则重新发送通信信号给所述遥控器。Preferably, the first sending module is further configured to resend a communication signal to the remote controller if the average signal strength is not within a preset range.
优选地，所述第一发送模块为射频发射模块，所述接收模块为红外信号接收模块。Preferably, the first sending module is a radio frequency transmitting module, and the receiving module is an infrared signal receiving module.
本发明通过接收遥控器发送的遥控器指令，根据所述遥控指令中的预先加载的通信信号的平均信号强度计算得到电视与所述遥控器之间的距离，当所述距离未在设定观看距离范围内时，提示用户调整观看距离。通过根据通信信号的平均信号强度来计算得到与所述遥控器，即用户之间的距离，提高了测量电视与用户之间距离的准确度。The invention calculates the distance between the television and the remote controller according to the average signal strength of the preloaded communication signal in the remote control command by receiving the remote controller command sent by the remote controller, when the distance is not in the set viewing When the distance is within the range, the user is prompted to adjust the viewing distance. By calculating the distance from the remote controller, ie the user, based on the average signal strength of the communication signal, the accuracy of measuring the distance between the television and the user is improved.
附图说明DRAWINGS
图1为本发明检测用户观看距离的方法的第一实施例的流程示意图；1 is a schematic flow chart of a first embodiment of a method for detecting a viewing distance of a user according to the present invention;
图2为本发明检测用户观看距离的方法的第二实施例的流程示意图；2 is a schematic flow chart of a second embodiment of a method for detecting a viewing distance of a user according to the present invention;
图3为本发明检测用户观看距离的方法的第三实施例的流程示意图；3 is a schematic flow chart of a third embodiment of a method for detecting a viewing distance of a user according to the present invention;
图4为本发明检测用户观看距离的系统的第一实施例的功能模块示意图；4 is a schematic diagram of functional modules of a first embodiment of a system for detecting a user's viewing distance according to the present invention;
图5为本发明检测用户观看距离的系统的第二实施例的功能模块示意图；5 is a schematic diagram of functional modules of a second embodiment of a system for detecting a user's viewing distance according to the present invention;
图6为本发明检测用户观看距离的系统的第三实施例的功能模块示意图。FIG. 6 is a schematic diagram of functional modules of a third embodiment of a system for detecting a user's viewing distance according to the present invention.
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
具体实施方式detailed description
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
本发明提供一种检测用户观看距离的方法。The present invention provides a method of detecting a viewing distance of a user.
参照图1，图1为本发明检测用户观看距离的方法的第一实施例的流程示意图。Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a first embodiment of a method for detecting a viewing distance of a user according to the present invention.
在本实施例中，所述检测用户观看距离的方法包括：In this embodiment, the method for detecting a viewing distance of a user includes:
步骤S10，电视接收遥控器发送的遥控指令； Step S10, the television receives a remote control command sent by the remote controller;
电视接收遥控器发送的遥控指令，所述遥控指令中预先加载了所述电视发送给所述遥控器的通信信号的平均信号强度。优选地，遥控器发送遥控指令给所述电视之前，电视用户先定义遥控器遥控指令的编码格式，所述遥控器遥控指令的编码由引导码、客户码、数据码和强度码组成。The television receives a remote control command sent by the remote controller, and the remote control command preloads an average signal strength of the communication signal sent by the television to the remote controller. Preferably, before the remote controller sends the remote control command to the television, the television user first defines an encoding format of the remote controller remote command, and the code of the remote controller remote command is composed of a boot code, a client code, a data code, and an intensity code.
步骤S20，电视解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；Step S20, the television parses the remote control command to obtain an average signal strength of the communication signal preloaded in the remote control command;
当所述电视接收到所述遥控指令时，解析所述遥控指令，得到所述遥控器指令中预先加载的通信信号的平均信号强度，记为PR。When the television receives the remote control command, parsing the remote control command to obtain an average signal strength of a communication signal preloaded in the remote controller command, denoted as P R .
步骤S30，电视根据所述平均信号强度计算得到该电视与所述遥控器之间的距离；Step S30, the television calculates a distance between the television and the remote controller according to the average signal strength;
所述电视根据所述平均信号强度计算得到该电视自身与所述遥控器之间的距离，所述距离记为r。优选地，所述电视根据所述平均信号强度PR计算得到与所述遥控器之间的距离r的具体过程为：所述电视根据公式PR＝PT/r*n的变形计算得到与所述遥控器之间的距离。所述PT为所述电视发送给所述遥控器的通信信号的平均信号强度；所述n为传播因子，其数值由所述通信信号传播的环境决定。对所述公式PR＝PT/r*n取对数，可得10*nlgr＝10*lgPT/PR，因为PT是所述电视发送给所述遥控器的通信信号的平均信号强度，因此所述PT是已知的。由此可知，所述公式为10*lgPR＝-A-10*nlgr，公式中的A和n为常数，表示所述电视接收的通信信号强度与所述遥控器之间的距离关系。所述A被定义为用dBm表示距离发射器1米时，即所述电视和所述遥控器之间的距离为1米时，所述电视接收到所述遥控器发送的遥控指令信号的平均能量的绝对值，如当所述遥控器发送的遥控指令信号的平均能量为40dBm时，那么参数A对应的数值为40。所述n表示的是通信信号在传输过程中，随着传输距离的增加，所述通信信号强度衰减的速率，所述n对应的数值的大小由通信信号传播的环境决定。优选地，设计人员在研发过程中，根据所述电视和所述遥控器的实际情况，模拟家庭环境，进行反复测试，最终确定出合理A和n对应的数值。因为在所述电视和所述遥控器所在的环境的变化，会对测试A和n对应的数值的测试结果有一定的影响，因此取多次测试结果的平均值。如当所述设计人员经过多次测试得到的数据如表1所示： The television calculates a distance between the television itself and the remote controller based on the average signal strength, the distance being denoted as r. Preferably, the specific process of calculating, by the television, the distance r from the remote controller according to the average signal strength P R is: the television is calculated according to a deformation of the formula P R =P T /r*n The distance between the remote controls. The P T is an average signal strength of a communication signal sent by the television to the remote controller; the n is a propagation factor whose value is determined by an environment in which the communication signal propagates. Taking the logarithm of the formula P R =P T /r*n, 10*nlgr=10*lgP T /P R can be obtained because P T is the average signal of the communication signal sent by the television to the remote controller Intensity, therefore the P T is known. It can be seen that the formula is 10*lgP R = -A-10*nlgr, and A and n in the formula are constants, indicating the relationship between the strength of the communication signal received by the television and the remote controller. The A is defined as when the distance from the transmitter is 1 meter in dBm, that is, when the distance between the television and the remote controller is 1 meter, the television receives an average of the remote command signals sent by the remote controller. The absolute value of the energy, such as when the average energy of the remote command signal sent by the remote controller is 40 dBm, then the value corresponding to the parameter A is 40. The n represents the rate at which the strength of the communication signal is attenuated as the transmission distance increases during the transmission of the communication signal, and the magnitude of the value corresponding to the n is determined by the environment in which the communication signal propagates. Preferably, during the development process, the designer simulates the home environment according to the actual situation of the television and the remote controller, performs repeated tests, and finally determines the values corresponding to the reasonable A and n. Because the changes in the environment in which the television and the remote controller are located have a certain influence on the test results of the values corresponding to the tests A and n, the average of the test results is taken. For example, when the designer has undergone multiple tests, the data is shown in Table 1:
Figure PCTCN2016084437-appb-000001
Figure PCTCN2016084437-appb-000001
则所述A对应的数值为对所述38dBm，40dBm和42dBm取平均值，得到所述A对应的数值的40dBm。所述n对应的数值为对所述2.7，3和3.3取平均值，得到所述n对应的数值为3。则在所述公式10*lgPR＝-A-10*nlgr中，只存在一个未知数r，则所述电视根据所述公式10*lgPR＝-A-10*nlgr求出与所述遥控器之间的距离r。Then, the value corresponding to A is an average of the 38 dBm, 40 dBm, and 42 dBm, and 40 dBm of the value corresponding to the A is obtained. The value corresponding to n is an average of the 2.7, 3, and 3.3, and the value corresponding to the n is 3. Then, in the formula 10*lgP R = -A-10*nlgr, there is only one unknown r, and the television finds the remote controller according to the formula 10*lgP R =-A-10*nlgr The distance between r.
步骤S40，当所述距离未在设定观看距离范围内时，电视产生提示信息以提示用户调整观看距离。In step S40, when the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance.
所述电视将计算得到的距离r与其存储的设定观看距离进行对比，判断所述距离r是否在所述设定观看距离范围内，若所述距离r未在所述设定观看距离范围内时，所述电视产生提示信息，并在其显示界面显示所述提示信息，提示其用户调整观看距离。所述设定观看距离即所述用户的最佳观看距离。所述电视提示所述用户调整观看距离的方法还可以是通过指示灯闪烁进行提示用户调整观看距离，也可以通过扬声器输出特定的声音以提示所述用户调整观看距离等。当所述电视判定所述距离在设定观看距离范围内时，继续播放当前视频。The television compares the calculated distance r with the stored set viewing distance, and determines whether the distance r is within the set viewing distance range, if the distance r is not within the set viewing distance range The television generates prompt information and displays the prompt information on its display interface to prompt the user to adjust the viewing distance. The set viewing distance is the optimal viewing distance of the user. The method for prompting the user to adjust the viewing distance may also be to prompt the user to adjust the viewing distance by flashing the indicator light, or to output a specific sound through the speaker to prompt the user to adjust the viewing distance and the like. When the television determines that the distance is within the set viewing distance range, the current video continues to be played.
本实施例通过接收遥控器发送的遥控器指令，根据所述遥控指令中的预先加载的通信信号的平均信号强度计算得到电视与所述遥控器之间的距离，当所述距离未在设定观看距离范围内时，提示用户调整观看距离。通过根据通信信号的平均信号强度来计算得到与所述遥控器，即用户之间的距离，提高了测量电视与用户之间距离的准确度。In this embodiment, by receiving a remote controller command sent by the remote controller, the distance between the television and the remote controller is calculated according to the average signal strength of the preloaded communication signal in the remote command, when the distance is not set. When viewing the distance, the user is prompted to adjust the viewing distance. By calculating the distance from the remote controller, ie the user, based on the average signal strength of the communication signal, the accuracy of measuring the distance between the television and the user is improved.
参照图2，图2为本发明检测用户观看距离的方法的第二实施例的流程示意图，基于第一实施例提出本发明检测用户观看距离的方法的第二实施例。Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of a second embodiment of a method for detecting a viewing distance of a user according to the present invention. Based on the first embodiment, a second embodiment of a method for detecting a viewing distance of a user according to the present invention is proposed.
在本实施例中，所述步骤S10之前，还包括： In this embodiment, before the step S10, the method further includes:
步骤S50，电视预先存储各种屏幕尺寸对应显示模式的设定观看距离。In step S50, the television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes.
所述电视预先存储各种屏幕尺寸对应显示模式的设定观看距离，如所述电视预先存储的各种屏幕尺寸对应的显示模式的最佳观看距离如表2所示：The television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes, and the optimal viewing distances of the display modes corresponding to the various screen sizes pre-stored by the television are as shown in Table 2:
Figure PCTCN2016084437-appb-000002
Figure PCTCN2016084437-appb-000002
步骤S60，电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令；Step S60: The television sends a communication signal to the remote controller, so that the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength into the remote control command. Sending the remote command;
所述电视上安装了无线信号发射节点，所述遥控器上安装了无线信号接收节点。所述电视通过所述无线信号发射节点发送通信信号给所述遥控器。优选地，所述通信信号为无线信号。即所述电视通过无线发射节点发送无线信号给所述遥控器，所述遥控器通过所述无线接收节点接收所述无线信号。当所述遥控器在预设时间内接收到m个无线信号时，计算所述m个无线信号的平均信号强度。优选地，所述预设时间为1秒。即当所述遥控器在1秒时间内接收到m个无线信号时，计算所述m个无线信号的平均信号强度PR，即
Figure PCTCN2016084437-appb-000003
并将计算所得的平均信号强度PR加载至所述遥控指令中，优选地，将所述平均信号强度PR加载至所述遥控指令中强度码中，发送给所述电视。当所述电视未接收到所述遥控指令时，判定检测所述用户观看距离失败。优选地，当所述遥控器为红外遥控器时，当所述遥控器在发送遥控指令给所述电视的过程中，由于所述红外遥控器发射的无线信号具有直向性，如果中间有人体或者其它物体的遮挡，所述电视将无法接收到所述遥控器发送的按键指令。A wireless signal transmitting node is installed on the television, and a wireless signal receiving node is installed on the remote controller. The television transmits a communication signal to the remote controller through the wireless signal transmitting node. Preferably, the communication signal is a wireless signal. That is, the television transmits a wireless signal to the remote controller through a wireless transmitting node, and the remote controller receives the wireless signal through the wireless receiving node. When the remote controller receives m wireless signals within a preset time, the average signal strength of the m wireless signals is calculated. Preferably, the preset time is 1 second. That is, when the remote controller receives m wireless signals within one second, calculating an average signal strength P R of the m wireless signals, that is,
Figure PCTCN2016084437-appb-000003
And calculating the calculated average signal strength P R into the remote command, preferably loading the average signal strength P R into the intensity code in the remote command and transmitting to the television. When the television does not receive the remote control command, it is determined that detecting the user viewing distance fails. Preferably, when the remote controller is an infrared remote controller, when the remote controller sends a remote command to the television, because the wireless signal transmitted by the infrared remote controller has directness, if there is a human body in the middle Or the occlusion of other objects, the television will not be able to receive the key command sent by the remote controller.
进一步地，所述电视发送给所述遥控器的通信信号采用射频通信，所述电视接收到的所述遥控指令为红外信号。 Further, the communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
所述电视采用射频通信发送通信信号给所述遥控器，而所述电视接收到所述遥控器发送的遥控指令则为红外信号，即所述遥控器通过红外技术将所述遥控指令发送给所述电视。其中，所述电视发送通信信号给所述遥控器的技术包括但不限于射频通信技术。但是为了准确测量所述电视和所述遥控器之间的距离，所述电视不采用红外技术发送通信信号给所述遥控器。The television uses radio frequency communication to transmit a communication signal to the remote controller, and the remote control command sent by the television to the remote controller is an infrared signal, that is, the remote controller sends the remote control command to the office through infrared technology. Said TV. The technology for the television to transmit a communication signal to the remote controller includes, but is not limited to, a radio frequency communication technology. However, in order to accurately measure the distance between the television and the remote controller, the television does not use infrared technology to transmit communication signals to the remote controller.
本实施例通过遥控器计算电视发送的多个通信信号的平均信号强度，减少了在传输通信信号过程中出现的干扰，使检测到用户的观看距离更加准确，且无需添加复杂的组件，降低了成本，提高了产品的竞争力。In this embodiment, the average signal strength of the plurality of communication signals transmitted by the television is calculated by the remote controller, the interference occurring during the transmission of the communication signal is reduced, and the viewing distance of the detected user is more accurate, and the complicated component is not required to be reduced. Cost increases the competitiveness of the product.
参照图3，图3为本发明检测用户观看距离的方法的第三实施例的流程示意图，基于第一实施例提出本发明检测用户观看距离的方法的第三实施例。Referring to FIG. 3, FIG. 3 is a schematic flowchart diagram of a third embodiment of a method for detecting a viewing distance of a user according to the present invention. Based on the first embodiment, a third embodiment of a method for detecting a viewing distance of a user according to the present invention is proposed.
在本实施例中，所述步骤S20之后，还包括：In this embodiment, after the step S20, the method further includes:
步骤S70，电视判断所述平均信号强度是否在预设范围内；Step S70, the television determines whether the average signal strength is within a preset range;
当所述电视从所述遥控指令中解析出所述通信信号的平均信号强度后，判断所述平均信号强度是否在预设范围内。优选地，所述预设范围根据通信信号的传输环境的具体情况而设定，如当所述电视在一秒内发送的m个通信信号给所述遥控器时，所述m个通信信号在所述电视刚发送出去的时候，信号强度是一致的，如所述m个通信信号的信号强度都为45db，则所述m个通信信号的在所述电视端的平均信号强度为45db，因为受环境影响，所述通信信号在传输至所述遥控器时，会出现一定程度的衰减，则根据当时的传输环境，如可以将所述预设范围可以设置为38db至45db。After the television parses the average signal strength of the communication signal from the remote control command, it is determined whether the average signal strength is within a preset range. Preferably, the preset range is set according to a specific situation of a transmission environment of the communication signal, such as when the television transmits m communication signals in one second to the remote controller, the m communication signals are When the television is just sent out, the signal strength is consistent. If the signal strengths of the m communication signals are 45 db, the average signal strength of the m communication signals at the television end is 45 db, because According to the environmental impact, when the communication signal is transmitted to the remote controller, a certain degree of attenuation occurs, and according to the current transmission environment, the preset range can be set to 38db to 45db.
步骤S80，若所述平均信号强度未在预设范围内，则重新发送通信信号给所述遥控器。Step S80, if the average signal strength is not within the preset range, resending the communication signal to the remote controller.
当所述电视判定所述平均信号强度未在预设范围内时，即所述遥控器接收所述电视发送的某一个或者多个通信信号衰减太多，或者出现异常，导致所述遥控器计算得到的平均信号强度未在预设范围内时，所述电视不会根据所述平均信号强度计算与所述遥控器之间的距离，而是重新发送通信信号给所述遥控器，以供所述遥控器重新计算预设时间内的接收到的通信信号的平均信号强度。当所述电视判定所述平均信号强度在预设范围内时，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。 When the television determines that the average signal strength is not within a preset range, that is, the remote controller receives too much attenuation of one or more communication signals transmitted by the television, or an abnormality occurs, causing the remote controller to calculate When the obtained average signal strength is not within the preset range, the television does not calculate the distance from the remote controller according to the average signal strength, but retransmits the communication signal to the remote controller for the The remote controller recalculates the average signal strength of the received communication signal within a preset time. When the television determines that the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
本实施例通过当电视解析出遥控指令中的平均信号强度时，判断所述平均信号强度是否是在预设范围内，当所述平均信号强度未在预设范围内时，不根据所述平均信号强度计算与所述遥控器之间的距离，即不进行对所述用户观看距离的检测，提高了检测结果的准确性。In this embodiment, when the television parses the average signal strength in the remote command, it is determined whether the average signal strength is within a preset range, and when the average signal strength is not within the preset range, the average is not based on the average The signal strength is calculated and the distance between the remote controllers, that is, the detection of the viewing distance of the user is not performed, and the accuracy of the detection result is improved.
本发明进一步提供一种检测用户观看距离的系统。The present invention further provides a system for detecting a viewing distance of a user.
参照图4，图4为本发明检测用户观看距离的系统的第一实施例的功能模块示意图。Referring to FIG. 4, FIG. 4 is a schematic diagram of functional modules of a first embodiment of a system for detecting a user's viewing distance according to the present invention.
在本实施例中，所述检测用户观看距离的系统包括：In this embodiment, the system for detecting a user viewing distance includes:
接收模块10，用于接收遥控器发送的遥控指令；The receiving module 10 is configured to receive a remote control command sent by the remote controller;
电视接收遥控器发送的遥控指令，所述遥控指令中预先加载了所述电视发送给所述遥控器的通信信号的平均信号强度。优选地，遥控器发送遥控指令给所述电视之前，电视用户先定义遥控器遥控指令的编码格式，所述遥控器遥控指令的编码由引导码、客户码、数据码和强度码组成。The television receives a remote control command sent by the remote controller, and the remote control command preloads an average signal strength of the communication signal sent by the television to the remote controller. Preferably, before the remote controller sends the remote control command to the television, the television user first defines an encoding format of the remote controller remote command, and the code of the remote controller remote command is composed of a boot code, a client code, a data code, and an intensity code.
解析模块20，用于解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；The parsing module 20 is configured to parse the remote control command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
当所述电视接收到所述遥控指令时，解析所述遥控指令，得到所述遥控器指令中预先加载的通信信号的平均信号强度，记为PR。When the television receives the remote control command, parsing the remote control command to obtain an average signal strength of a communication signal preloaded in the remote controller command, denoted as P R .
计算模块30，用于根据所述平均信号强度计算得到电视与所述遥控器之间的距离；The calculating module 30 is configured to calculate a distance between the television and the remote controller according to the average signal strength;
所述电视根据所述平均信号强度计算得到该电视自身与所述遥控器之间的距离，所述距离记为r。优选地，所述电视根据所述平均信号强度PR计算得到与所述遥控器之间的距离r的具体过程为：所述电视根据公式PR＝PT/r*n的变形计算得到与所述遥控器之间的距离。所述PT为所述电视发送给所述遥控器的通信信号的平均信号强度；所述n为传播因子，其数值由所述通信信号传播的环境决定。对所述公式PR＝PT/r*n取对数，可得10*nlgr＝10*lgPT/PR，因为PT是所述电视发送给所述遥控器的通信信号的平均信号强度，因此所述PT是已知的。由此可知，所述公式为10*lgPR＝-A-10*nlgr，公式中的A和n为常数，表示所述电视接收的通信信号强度与所述遥控器之间的距离关系。所述A被定义为用dBm表示距 离发射器1米时，即所述电视和所述遥控器之间的距离为1米时，所述电视接收到所述遥控器发送的遥控指令信号的平均能量的绝对值，如当所述遥控器发送的遥控指令信号的平均能量为40dBm时，那么参数A对应的数值为40。所述n表示的是通信信号在传输过程中，随着传输距离的增加，所述通信信号强度衰减的速率，所述n对应的数值的大小由通信信号传播的环境决定。优选地，设计人员在研发过程中，根据所述电视和所述遥控器的实际情况，模拟家庭环境，进行反复测试，最终确定出合理A和n对应的数值。因为在所述电视和所述遥控器所在的环境的变化，会对测试A和n对应的数值的测试结果有一定的影响，因此取多次测试结果的平均值。如当所述设计人员经过多次测试得到的数据如表1所示：The television calculates a distance between the television itself and the remote controller based on the average signal strength, the distance being denoted as r. Preferably, the specific process of calculating, by the television, the distance r from the remote controller according to the average signal strength P R is: the television is calculated according to a deformation of the formula P R =P T /r*n The distance between the remote controls. The P T is an average signal strength of a communication signal sent by the television to the remote controller; the n is a propagation factor whose value is determined by an environment in which the communication signal propagates. Taking the logarithm of the formula P R =P T /r*n, 10*nlgr=10*lgP T /P R can be obtained because P T is the average signal of the communication signal sent by the television to the remote controller Intensity, therefore the P T is known. It can be seen that the formula is 10*lgP R = -A-10*nlgr, and A and n in the formula are constants, indicating the relationship between the strength of the communication signal received by the television and the remote controller. The A is defined as when the distance from the transmitter is 1 meter in dBm, that is, when the distance between the television and the remote controller is 1 meter, the television receives an average of the remote command signals sent by the remote controller. The absolute value of the energy, such as when the average energy of the remote command signal sent by the remote controller is 40 dBm, then the value corresponding to the parameter A is 40. The n represents the rate at which the strength of the communication signal is attenuated as the transmission distance increases during the transmission of the communication signal, and the magnitude of the value corresponding to the n is determined by the environment in which the communication signal propagates. Preferably, during the development process, the designer simulates the home environment according to the actual situation of the television and the remote controller, performs repeated tests, and finally determines the values corresponding to the reasonable A and n. Because the changes in the environment in which the television and the remote controller are located have a certain influence on the test results of the values corresponding to the tests A and n, the average of the test results is taken. For example, when the designer has undergone multiple tests, the data is shown in Table 1:
Figure PCTCN2016084437-appb-000004
Figure PCTCN2016084437-appb-000004
则所述A对应的数值为对所述38dBm，40dBm和42dBm取平均值，得到所述A对应的数值的40dBm。所述n对应的数值为对所述2.7，3和3.3取平均值，得到所述n对应的数值为3。则在所述公式10*lgPR＝-A-10*nlgr中，只存在一个未知数r，则所述电视根据所述公式10*lgPR＝-A-10*nlgr求出与所述遥控器之间的距离r。Then, the value corresponding to A is an average of the 38 dBm, 40 dBm, and 42 dBm, and 40 dBm of the value corresponding to the A is obtained. The value corresponding to n is an average of the 2.7, 3, and 3.3, and the value corresponding to the n is 3. Then, in the formula 10*lgP R = -A-10*nlgr, there is only one unknown r, and the television finds the remote controller according to the formula 10*lgP R =-A-10*nlgr The distance between r.
提示模块40，用于当所述距离未在设定观看距离范围内时，产生提示信息以提示用户调整观看距离。The prompting module 40 is configured to generate prompt information to prompt the user to adjust the viewing distance when the distance is not within the set viewing distance range.
所述电视将计算得到的距离r与其存储的设定观看距离进行对比，判断所述距离r是否在所述设定观看距离范围内，若所述距离r未在所述设定观看距离范围内时，所述电视产生提示信息，并在其显示界面显示所述提示信息，提示其用户调整观看距离。所述设定观看距离即所述用户的最佳观看距离。所述电视提示所述用户调整观看距离的方法还可以是通过指示灯闪烁进行提示用户调整观看距离，也可以通过扬声器输出特定的声音以提示所述用户调整观看距离等。当所述电视判定所述距离在设定观看距离范围内时，继 续播放当前视频。The television compares the calculated distance r with the stored set viewing distance, and determines whether the distance r is within the set viewing distance range, if the distance r is not within the set viewing distance range The television generates prompt information and displays the prompt information on its display interface to prompt the user to adjust the viewing distance. The set viewing distance is the optimal viewing distance of the user. The method for prompting the user to adjust the viewing distance may also be to prompt the user to adjust the viewing distance by flashing the indicator light, or to output a specific sound through the speaker to prompt the user to adjust the viewing distance and the like. When the television determines that the distance is within a set viewing distance range, Continue to play the current video.
本实施例通过接收遥控器发送的遥控器指令，根据所述遥控指令中的预先加载的通信信号的平均信号强度计算得到电视与所述遥控器之间的距离，当所述距离未在设定观看距离范围内时，提示用户调整观看距离。通过根据通信信号的平均信号强度来计算得到与所述遥控器，即用户之间的距离，提高了测量电视与用户之间距离的准确度。In this embodiment, by receiving a remote controller command sent by the remote controller, the distance between the television and the remote controller is calculated according to the average signal strength of the preloaded communication signal in the remote command, when the distance is not set. When viewing the distance, the user is prompted to adjust the viewing distance. By calculating the distance from the remote controller, ie the user, based on the average signal strength of the communication signal, the accuracy of measuring the distance between the television and the user is improved.
参照图5，图5为本发明检测用户观看距离的装置的第二实施例的功能模块示意图，基于第一实施例提出本发明检测用户观看距离的装置的第二实施例。Referring to FIG. 5, FIG. 5 is a schematic diagram of functional modules of a second embodiment of an apparatus for detecting a user's viewing distance according to the present invention. Based on the first embodiment, a second embodiment of the apparatus for detecting a viewing distance of a user according to the present invention is proposed.
在本实施例中，所述检测用户观看距离的装置还包括：In this embodiment, the device for detecting a viewing distance of a user further includes:
存储模块50，用于预先存储各种屏幕尺寸对应显示模式的设定观看距离。The storage module 50 is configured to pre-store a set viewing distance of each screen size corresponding to the display mode.
所述电视预先存储各种屏幕尺寸对应显示模式的设定观看距离，如所述电视预先存储的各种屏幕尺寸对应的显示模式的最佳观看距离如表2所示：The television pre-stores the set viewing distances of the display modes corresponding to the various screen sizes, and the optimal viewing distances of the display modes corresponding to the various screen sizes pre-stored by the television are as shown in Table 2:
Figure PCTCN2016084437-appb-000005
Figure PCTCN2016084437-appb-000005
第一发送模块60，用于发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令；The first sending module 60 is configured to send a communication signal to the remote controller, where the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength to the Sending the remote control command in a remote command;
所述电视上安装了无线信号发射节点，所述遥控器上安装了无线信号接收节点。所述电视通过所述无线信号发射节点发送通信信号给所述遥控器。优选地，所述通信信号为无线信号。即所述电视通过无线发射节点发送无线信号给所述遥控器，所述遥控器通过所述无线接收节点接收所述无线信号。 当所述遥控器在预设时间内接收到m个无线信号时，计算所述m个无线信号的平均信号强度。优选地，所述预设时间为1秒。即当所述遥控器在1秒时间内接收到m个无线信号时，计算所述m个无线信号的平均信号强度PR，即
Figure PCTCN2016084437-appb-000006
并将计算所得的平均信号强度PR加载至所述遥控指令中，优选地，将所述平均信号强度PR加载至所述遥控指令中强度码中，发送给所述电视。当所述电视未接收到所述遥控指令时，判定检测所述用户观看距离失败。优选地，当所述遥控器为红外遥控器时，当所述遥控器在发送遥控指令给所述电视的过程中，由于所述红外遥控器发射的无线信号具有直向性，如果中间有人体或者其它物体的遮挡，所述电视将无法接收到所述遥控器发送的按键指令。A wireless signal transmitting node is installed on the television, and a wireless signal receiving node is installed on the remote controller. The television transmits a communication signal to the remote controller through the wireless signal transmitting node. Preferably, the communication signal is a wireless signal. That is, the television transmits a wireless signal to the remote controller through a wireless transmitting node, and the remote controller receives the wireless signal through the wireless receiving node. When the remote controller receives m wireless signals within a preset time, the average signal strength of the m wireless signals is calculated. Preferably, the preset time is 1 second. That is, when the remote controller receives m wireless signals within one second, calculating an average signal strength P R of the m wireless signals, that is,
Figure PCTCN2016084437-appb-000006
And calculating the calculated average signal strength P R into the remote command, preferably loading the average signal strength P R into the intensity code in the remote command and transmitting to the television. When the television does not receive the remote control command, it is determined that detecting the user viewing distance fails. Preferably, when the remote controller is an infrared remote controller, when the remote controller sends a remote command to the television, because the wireless signal transmitted by the infrared remote controller has directness, if there is a human body in the middle Or the occlusion of other objects, the television will not be able to receive the key command sent by the remote controller.
进一步地，所述第一发送模块为射频发射模块，所述接收模块为红外信号接收模块。Further, the first sending module is a radio frequency transmitting module, and the receiving module is an infrared signal receiving module.
所述第一发送模块60为射频发射模块，所述接收模块10为红外信号接收模块。即所述电视采用射频通信发送通信信号给所述遥控器，而所述电视接收到所述遥控器发送的遥控指令则为红外信号，即所述遥控器通过红外技术将所述遥控指令发送给所述电视。其中，所述电视发送通信信号给所述遥控器的技术包括但不限于射频通信技术。但是为了准确测量所述电视和所述遥控器之间的距离，所述电视不采用红外技术发送通信信号给所述遥控器。The first sending module 60 is a radio frequency transmitting module, and the receiving module 10 is an infrared signal receiving module. That is, the television transmits communication signals to the remote controller by using radio frequency communication, and the remote control command sent by the television to the remote controller is an infrared signal, that is, the remote controller sends the remote control command to the infrared controller. The television. The technology for the television to transmit a communication signal to the remote controller includes, but is not limited to, a radio frequency communication technology. However, in order to accurately measure the distance between the television and the remote controller, the television does not use infrared technology to transmit communication signals to the remote controller.
本实施例通过遥控器计算电视发送的多个通信信号的平均信号强度，减少了在传输通信信号过程中出现的干扰，使检测到用户的观看距离更加准确，且无需添加复杂的组件，降低了成本，提高了产品的竞争力。In this embodiment, the average signal strength of the plurality of communication signals transmitted by the television is calculated by the remote controller, the interference occurring during the transmission of the communication signal is reduced, and the viewing distance of the detected user is more accurate, and the complicated component is not required to be reduced. Cost increases the competitiveness of the product.
参照图6，图6为本发明检测用户观看距离的装置的第三实施例的功能模块示意图，基于第一实施例提出本发明检测用户观看距离的装置的第三实施例。Referring to FIG. 6, FIG. 6 is a schematic diagram of functional modules of a third embodiment of an apparatus for detecting a user's viewing distance according to the present invention. Based on the first embodiment, a third embodiment of the apparatus for detecting a viewing distance of a user according to the present invention is proposed.
在本实施例中，所述检测用户观看距离的装置还包括：In this embodiment, the device for detecting a viewing distance of a user further includes:
判断模块70，用于判断所述平均信号强度是否在预设范围内；The determining module 70 is configured to determine whether the average signal strength is within a preset range;
当所述电视从所述遥控指令中解析出所述通信信号的平均信号强度后，判断所述平均信号强度是否在预设范围内。优选地，所述预设范围根据通信信号的传输环境的具体情况而设定，如当所述电视在一秒内发送的m个通信 信号给所述遥控器时，所述m个通信信号在所述电视刚发送出去的时候，信号强度是一致的，如所述m个通信信号的信号强度都为45db，则所述m个通信信号的在所述电视端的平均信号强度为45db，因为受环境影响，所述通信信号在传输至所述遥控器时，会出现一定程度的衰减，则根据当时的传输环境，如可以将所述预设范围可以设置为38db至45db。After the television parses the average signal strength of the communication signal from the remote control command, it is determined whether the average signal strength is within a preset range. Preferably, the preset range is set according to a specific situation of a transmission environment of the communication signal, such as m communications sent by the television in one second. When the signal is sent to the remote controller, the signal strengths of the m communication signals are consistent when the television is just sent out. If the signal strengths of the m communication signals are 45 db, the m communications are The average signal strength of the signal at the television end is 45 db, because due to environmental influences, the communication signal may be attenuated to some extent when transmitted to the remote controller, according to the current transmission environment, as described The preset range can be set from 38db to 45db.
处理模块80，用于若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到与所述遥控器之间的距离。The processing module 80 is configured to: if the average signal strength is within a preset range, perform the step of: calculating a distance from the remote controller according to the average signal strength.
另外，该第一发送模块60还用于若所述平均信号强度未在正常范围内，则重新发送通信信号给所述遥控器。In addition, the first sending module 60 is further configured to resend the communication signal to the remote controller if the average signal strength is not within the normal range.
当所述电视判定所述平均信号强度未在预设范围内时，即所述遥控器接收所述电视发送的某一个或者多个通信信号衰减太多，或者出现异常，导致所述遥控器计算得到的平均信号强度未在预设范围内时，所述电视不会根据所述平均信号强度计算与所述遥控器之间的距离，而是重新发送通信信号给所述遥控器，以供所述遥控器重新计算预设时间内的接收到的通信信号的平均信号强度。当所述电视判定所述平均信号强度在预设范围内时，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。When the television determines that the average signal strength is not within a preset range, that is, the remote controller receives too much attenuation of one or more communication signals transmitted by the television, or an abnormality occurs, causing the remote controller to calculate When the obtained average signal strength is not within the preset range, the television does not calculate the distance from the remote controller according to the average signal strength, but retransmits the communication signal to the remote controller for the The remote controller recalculates the average signal strength of the received communication signal within a preset time. When the television determines that the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
本实施例通过当电视解析出遥控指令中的平均信号强度时，判断所述平均信号强度是否是在预设范围内，当所述平均信号强度未在预设范围内时，不根据所述平均信号强度计算与所述遥控器之间的距离，即不进行对所述用户观看距离的检测，提高了检测结果的准确性。In this embodiment, when the television parses the average signal strength in the remote command, it is determined whether the average signal strength is within a preset range, and when the average signal strength is not within the preset range, the average is not based on the average The signal strength is calculated and the distance between the remote controllers, that is, the detection of the viewing distance of the user is not performed, and the accuracy of the detection result is improved.
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个......”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通 过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, Hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims (15)

  1. 一种检测用户观看距离的方法，其特征在于，所述检测用户观看距离的方法包括以下步骤：A method for detecting a viewing distance of a user, wherein the method for detecting a viewing distance of a user comprises the following steps:
    电视预先存储各种屏幕尺寸对应显示模式的设定观看距离；The television pre-stores a set viewing distance corresponding to the display mode of various screen sizes;
    电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令；The television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command
    电视接收遥控器发送的遥控指令；The television receives a remote command sent by the remote controller;
    电视解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；The television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
    电视根据所述平均信号强度计算得到该电视与所述遥控器之间的距离；The television calculates a distance between the television and the remote controller according to the average signal strength;
    当所述距离未在设定观看距离范围内时，电视产生提示信息以提示用户调整观看距离；When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance;
    其中，所述电视发送给所述遥控器的通信信号采用射频通信，所述电视接收到的所述遥控指令为红外信号。The communication signal sent by the television to the remote controller is communicated by radio frequency, and the remote control command received by the television is an infrared signal.
  2. 如权利要求1所述的检测用户观看距离的方法，其特征在于，所述电视解析所述遥控指令，得到所述遥控指令中预先加载的平均信号强度的步骤之后，还包括：The method of detecting a viewing distance of a user according to claim 1, wherein the step of the television parsing the remote control command to obtain an average signal strength preloaded in the remote command comprises:
    电视判断所述平均信号强度是否在预设范围内；The television determines whether the average signal strength is within a preset range;
    若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。If the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
  3. 如权利要求2所述的检测用户观看距离的方法，其特征在于，所述电视判断所述平均信号强度是否在预设范围内的步骤之后，还包括：The method for detecting a viewing distance of a user according to claim 2, wherein the step of determining, by the television, whether the average signal strength is within a preset range, further comprising:
    若所述平均信号强度未在预设范围内，则电视重新发送通信信号给所述遥控器。If the average signal strength is not within the preset range, the television retransmits the communication signal to the remote controller.
  4. 一种检测用户观看距离的方法，其特征在于，所述检测用户观看距离的方法包括以下步骤： A method for detecting a viewing distance of a user, wherein the method for detecting a viewing distance of a user comprises the following steps:
    电视接收遥控器发送的遥控指令；The television receives a remote command sent by the remote controller;
    电视解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；The television parses the remote command to obtain an average signal strength of the pre-loaded communication signal in the remote command;
    电视根据所述平均信号强度计算得到该电视与所述遥控器之间的距离；The television calculates a distance between the television and the remote controller according to the average signal strength;
    当所述距离未在设定观看距离范围内时，电视产生提示信息以提示用户调整观看距离。When the distance is not within the set viewing distance, the television generates a prompt message to prompt the user to adjust the viewing distance.
  5. 如权利要求4所述的检测用户观看距离的方法，其特征在于，所述电视接收遥控器发送的遥控指令的步骤之前，还包括：The method for detecting a viewing distance of a user according to claim 4, wherein before the step of receiving the remote control command sent by the remote controller, the television further comprises:
    电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令。The television sends a communication signal to the remote controller, wherein the remote controller calculates an average signal strength of the communication signal received within a preset time, loads the average signal strength into the remote control command, and transmits the Remote command.
  6. 如权利要求5所述的检测用户观看距离的方法，其特征在于，所述电视发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令的步骤之前，还包括：A method for detecting a viewing distance of a user according to claim 5, wherein said television transmits a communication signal to said remote controller for said remote controller to calculate an average of said communication signals received within a preset time The signal strength, before the step of loading the average signal strength into the remote command and transmitting the remote command, further includes:
    电视预先存储各种屏幕尺寸对应显示模式的设定观看距离。The television pre-stores the set viewing distances of the various screen sizes corresponding to the display mode.
  7. 如权利要求4所述的检测用户观看距离的方法，其特征在于，所述电视解析所述遥控指令，得到所述遥控指令中预先加载的平均信号强度的步骤之后，还包括：The method for detecting a viewing distance of a user according to claim 4, wherein the step of the television parsing the remote control command to obtain an average signal strength preloaded in the remote control command further comprises:
    电视判断所述平均信号强度是否在预设范围内；The television determines whether the average signal strength is within a preset range;
    若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。If the average signal strength is within a preset range, then performing the step of: calculating a distance between the television and the remote controller according to the average signal strength.
  8. 如权利要求7所述的检测用户观看距离的方法，其特征在于，所述电视判断所述平均信号强度是否在预设范围内的步骤之后，还包括：The method for detecting a viewing distance of a user according to claim 7, wherein the step of determining, by the television, whether the average signal strength is within a preset range, further comprising:
    若所述平均信号强度未在预设范围内，则电视重新发送通信信号给所述遥控器。 If the average signal strength is not within the preset range, the television retransmits the communication signal to the remote controller.
  9. 如权利要求5所述的检测用户观看距离的方法，其特征在于，所述电视发送给所述遥控器的通信信号采用射频通信，所述电视接收到的所述遥控指令为红外信号。The method for detecting a viewing distance of a user according to claim 5, wherein the communication signal sent by the television to the remote controller is radio frequency communication, and the remote control command received by the television is an infrared signal.
  10. 一种检测用户观看距离的系统，其特征在于，所述检测用户观看距离的系统包括：A system for detecting a viewing distance of a user, wherein the system for detecting a viewing distance of a user comprises:
    接收模块，用于接收遥控器发送的遥控指令；a receiving module, configured to receive a remote control command sent by the remote controller;
    解析模块，用于解析所述遥控指令，得到所述遥控指令中预先加载的通信信号的平均信号强度；a parsing module, configured to parse the remote command, and obtain an average signal strength of a pre-loaded communication signal in the remote command;
    计算模块，用于根据所述平均信号强度计算得到电视与所述遥控器之间的距离；a calculation module, configured to calculate a distance between the television and the remote controller according to the average signal strength;
    提示模块，用于当所述距离未在设定观看距离范围内时，产生提示信息以提示用户调整观看距离。The prompting module is configured to generate prompt information to prompt the user to adjust the viewing distance when the distance is not within the set viewing distance.
  11. 如权利要求10所述的检测用户观看距离的系统，其特征在于，所述检测用户观看距离的系统，还包括：The system for detecting a viewing distance of a user according to claim 10, wherein the system for detecting a viewing distance of the user further comprises:
    第一发送模块，用于发送通信信号给所述遥控器，以供所述遥控器计算在预设时间内接收到所述通信信号的平均信号强度，将所述平均信号强度加载至所述遥控指令中并发送所述遥控指令。a first sending module, configured to send a communication signal to the remote controller, where the remote controller calculates an average signal strength of the communication signal received within a preset time, and loads the average signal strength to the remote controller The remote command is sent in the command.
  12. 如权利要求11所述的检测用户观看距离的系统，其特征在于，所述检测用户观看距离的系统，还包括存储模块，用于预先存储各种屏幕尺寸对应显示模式的设定观看距离。The system for detecting a viewing distance of a user according to claim 11, wherein the system for detecting a viewing distance of the user further comprises a storage module for pre-storing the set viewing distance of the corresponding display mode of the various screen sizes.
  13. 如权利要求10所述的检测用户观看距离的系统，其特征在于，所述检测用户观看距离的系统还包括：The system for detecting a viewing distance of a user according to claim 10, wherein the system for detecting a viewing distance of the user further comprises:
    判断模块，用于判断所述平均信号强度是否在预设范围内；a determining module, configured to determine whether the average signal strength is within a preset range;
    处理模块，用于若所述平均信号强度在预设范围内，则执行步骤：根据所述平均信号强度计算得到该电视与所述遥控器之间的距离。 And a processing module, configured to: if the average signal strength is within a preset range, perform the step of: calculating a distance between the television and the remote controller according to the average signal strength.
  14. 如权利要求13所述的检测用户观看距离的系统，其特征在于，所述第一发送模块还用于若所述平均信号强度未在预设范围内，则重新发送通信信号给所述遥控器。The system for detecting a viewing distance of a user according to claim 13, wherein the first transmitting module is further configured to resend a communication signal to the remote controller if the average signal strength is not within a preset range. .
  15. 如权利要求11所述的检测用户观看距离的系统，其特征在于，所述第一发送模块为射频发射模块，所述接收模块为红外信号接收模块。 The system for detecting a viewing distance of a user according to claim 11, wherein the first transmitting module is a radio frequency transmitting module, and the receiving module is an infrared signal receiving module.
PCT/CN2016/084437 2015-12-09 2016-06-02 Method and system for measuring viewing distance of user WO2017096767A1 (en)

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