WO2016041450A1

WO2016041450A1 - Screen control method and apparatus

Info

Publication number: WO2016041450A1
Application number: PCT/CN2015/089106
Authority: WO
Inventors: 王盛春
Original assignee: 阿里巴巴集团控股有限公司; 王盛春
Priority date: 2014-09-19
Filing date: 2015-09-08
Publication date: 2016-03-24
Also published as: HK1221047A1; CN105487768A

Abstract

A screen control method and apparatus. The screen control method comprises: capturing a viewing object that views a screen at a distance within a preset range from the screen (S102); detecting the distance between the viewing object and the screen (S104); determining whether the distance between the viewing object and the screen is smaller than a preset distance (S106); and if it is determined that the distance between the viewing object and the screen is smaller than the preset distance, controlling the screen to output prompt information (S108). The problem that the distance between a user and a screen cannot be detected in the prior art is solved, thereby achieving the effect of detecting the distance between the user and the screen and protecting the user's eyes.

Description

Screen control method and device

Technical field

The present application relates to the field of screens, and in particular to a screen control method and apparatus.

Background technique

With the popularity of smart TVs and the richness of entertainment and learning content, users spend more and more time on computers or TVs, but users can't detect their distance from the screen, which makes the eyes of the user when they watch the screen at close range. hurt.

In view of the problem that the distance between the user and the screen cannot be detected in the prior art, an effective solution has not been proposed yet.

Summary of the invention

The main purpose of the present application is to provide a screen control method and apparatus to solve the problem in the prior art that the distance between the user and the screen cannot be detected.

In order to achieve the above object, according to an aspect of the present application, a screen control method is provided. The screen control method according to the present application includes: capturing a viewing object that views the screen within a predetermined range from the screen; detecting a distance between the viewing object and the screen; determining whether a distance of the viewing object from the screen is less than a preset a distance; and if it is determined that the distance between the viewing object and the screen is less than the preset distance, controlling the screen to output prompt information.

Further, if the distance between the viewing object and the screen is less than the preset distance, the method includes: determining whether a dwell time of the viewing object within the preset distance is greater than a preset time, if the resident If the time is greater than the preset time, the screen is controlled to output the prompt information.

Further, before the viewing object of the screen is viewed within a predetermined range of the capture distance screen, the screen control method further includes: prompting the user to set a minimum distance between the viewing object and the screen; determining whether the image is received The minimum distance set by the user; if the minimum distance set by the user is received, the minimum distance is taken as The preset distance; and if the minimum distance set by the user is not received, acquiring a default distance of the screen, and using the default distance as the preset distance.

Further, the viewing object is a plurality of viewing objects, and detecting the distance between the viewing object and the screen comprises: detecting a distance between each of the plurality of viewing objects and the screen, and obtaining a plurality of distances, Determining whether the distance of the viewing object from the screen is less than a preset distance comprises: finding a minimum distance from the plurality of distances; and determining whether a minimum distance of the plurality of distances is smaller than the preset distance.

Further, capturing a viewing object that views the screen within a predetermined range of the distance screen includes: acquiring an object within the predetermined range from the screen; detecting whether the acquired object has heat; and if detecting that the object has heat, Then, an object having heat is taken as the viewing object.

In order to achieve the above object, according to another aspect of the present application, a screen control device is provided. The screen control apparatus according to the present application includes: a capture unit for capturing a viewing object that views the screen within a predetermined range from the screen; and a detecting unit that detects a distance between the viewing object and the screen; a first determining unit, a determining unit, configured to determine whether a distance between the viewing object and the screen is less than a preset distance, and a prompting unit, configured to control the screen when determining that a distance between the viewing object and the screen is less than the preset distance Output prompt information.

Further, the screen control device further includes a second determining unit, configured to determine that the viewing object is within the preset distance after determining that the distance between the viewing object and the screen is less than the preset value Whether the dwell time is greater than a preset time, and if the dwell time is greater than the preset time, controlling the screen to output the prompt information.

Further, the screen control device further includes: a setting unit, configured to prompt the user to set a minimum distance between the viewing object and the screen; and a second determining unit, configured to determine whether the user setting is received a minimum distance; a determining unit, configured to use the minimum distance as the preset distance when the minimum distance set by the user is received; and the minimum distance that is not set by the user is received And obtaining a default distance of the screen, and using the default distance as the preset distance.

Further, the viewing object is a plurality of viewing objects, and the detecting unit is further used for checking Measure a distance between each of the plurality of viewing objects and the screen to obtain a plurality of distances, where the first determining unit is further configured to determine whether a distance between the viewing object and the screen is less than a preset distance, : finding a minimum distance from the plurality of distances; and determining whether a minimum distance of the plurality of distances is smaller than the preset distance.

Further, the capturing unit further includes: an acquiring module, configured to acquire an object within the predetermined range from the screen; a heat detecting module, configured to detect whether the acquired object has heat; and a determining module, configured to When it is detected that the object has heat, an object having heat is taken as the viewing object.

Through the application, the object is viewed within a predetermined range of the capture distance screen; the distance between the viewing object and the screen is detected; whether the distance between the viewing object and the screen is less than a preset value; and if the distance between the viewing object and the screen is determined to be less than a preset value, Then, the method for controlling the screen to output the prompt information enables the screen to automatically detect the distance between the viewing object and the screen, and prompts the viewing object to be too close when the distance between the viewing object and the screen is too close, thereby prompting the viewing object to adjust the distance from the screen, thereby solving the present problem. In the technology, the problem that the distance between the user and the screen cannot be detected, thereby achieving the effect of detecting the distance between the user and the screen and issuing a prompt message to protect the eyes of the user.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

1 is a flow chart of a screen control method according to an embodiment of the present application;

2 is a flow chart of an alternate screen control method in accordance with an embodiment of the present application;

3 is a schematic diagram of a screen control device according to an embodiment of the present application;

4 is a schematic diagram of an alternative screen control device in accordance with an embodiment of the present application.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings.

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is an embodiment of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope shall fall within the scope of the application.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

The embodiment of the present application provides a screen control method. Alternatively, the screen involved in the embodiment may be a computer screen, a television screen, or the like. FIG. 1 is a flowchart of a screen control method according to an embodiment of the present application. As shown in the figure, the screen control method includes the following steps:

Step S102, capturing a viewing object that views the screen within a predetermined range from the screen. Usually, the viewing object views the screen within a predetermined range from the screen, and the predetermined range may be a transmissive space in front of the screen, or a space having an angle with the screen, which is generally a range in which the viewing object can view the screen.

Step S104, detecting the distance between the viewing object and the screen.

Step S106, determining whether the distance between the viewing object and the screen is less than a preset distance.

Step S108, if it is determined that the distance between the viewing object and the screen is less than the preset distance, the prompt information is output on the screen.

The closer the viewing object is to the screen, the greater the damage to the eye of the viewing object, such as the light of the screen. To protect the eyes of the viewing object, the preset distance is the eye damage to the viewing object. The minimum or no damage safety distance, when detecting that the distance between the viewing object and the screen is less than the preset distance, outputting prompt information to prompt the viewing object to be too close to the screen, wherein the output prompt information may be an audible alarm (such as a section) Music), can be a text prompt (such as "you are too close to the screen"), or a combination of the two, in order to achieve the purpose of prompting the viewing object to be too close to the screen, thereby solving the problem that the prior art cannot detect the user. The problem of the distance from the screen, and thus the effect of detecting the distance between the user and the screen.

Optionally, if it is determined that the distance between the viewing object and the screen is less than the preset distance, the screen control method further includes: determining whether the dwell time of the viewing object within the preset distance is greater than a preset time, if the dwell time is greater than the preset time Time, the control screen outputs prompt information.

During the work of the TV or computer screen, the object may be viewed from the screen for a short period of time. There may be a user passing through the front of the screen and not stopping to watch the screen. If the viewing object and the screen are detected. If the distance is less than the preset distance, the screen output prompt information may cause a screen error reminder, or the reminder is too frequent, resulting in a bad user experience. In order to promptly notify the viewing object that the object is too close to the screen, the accuracy of the output prompt information can be improved. After determining that the distance between the viewing object and the screen is less than the preset distance, it is determined that the distance between the viewing object and the screen is less than the preset distance. Whether the time is greater than the preset time, if it is detected that the viewing object is at the preset distance for more than the preset time, the prompt information needs to be sent to the viewing object, so the control screen outputs the prompt information. In the above embodiment, after determining whether the distance between the viewing object and the screen is within the preset distance, further determining whether to output the prompt information by determining whether the time when the viewing object is at the preset distance is greater than the preset time, thereby avoiding false positives. , improve the accuracy of the control screen output prompt information. In addition, by adjusting the length of the preset time, not only is it to improve the accuracy of the output prompt information, but also the viewing time of the screen may cause damage to the viewing object, and the viewing time may be adjusted by adjusting the length of the preset time. When the time is too long, the control screen issues a message.

Further, the screen control method further includes the following steps as shown in FIG. 2 before capturing the viewing object within a predetermined range of the screen:

Step S202, prompting the user to set a minimum distance between the control object and the screen.

The user can set different minimum distances depending on the viewing object, for example, Children and adults can set different minimum distances as preset distances, and the minimum distance set for adults is larger than the minimum distance set for children.

In step S204, it is determined whether the minimum distance set by the user is received.

Step S206, if the minimum distance set by the user is received, the minimum distance is taken as the preset distance.

Step S208, if the minimum distance set by the user is not received, the default distance of the screen is obtained, and the default distance is used as the preset distance.

If the user sets the minimum distance, the minimum distance set by the user is used as the preset distance, and if the user does not set the minimum distance, the default distance of the screen is taken as the preset distance. For example, when the minimum distance set by the user is received is 3 meters, then when the distance between the viewing object and the screen is detected to be 2.8 meters, the control screen outputs the prompt information. If the minimum distance set by the user is not received, the default distance is 4 meters, and the control screen outputs a prompt message when it is detected that the distance between the viewing object and the screen is 3.5 meters.

Preferably, when a plurality of viewing objects view the screen, detecting a distance of each of the plurality of viewing objects from the screen, obtaining a plurality of distances, finding a minimum distance from the plurality of distances; and determining a minimum distance among the plurality of distances Whether it is less than the preset distance. Whether to output the prompt information by determining whether the distance of the viewing object closest to the screen from the screen is less than the preset distance, that is, when the distance between the viewing object closest to the screen and the screen is greater than the preset distance, other viewing objects and the screen The distance is also greater than the preset value, and there is no need to output prompt information; when the distance between the viewing object closest to the screen and the screen is less than the preset value, the prompt information needs to be output, and thus, the distance between the viewing object closest to the screen and the screen can be determined. The distance between the viewing object and the screen is accurately detected in time, and the effect of protecting the eyes of the viewing object is achieved.

Preferably, capturing the viewing object of the viewing screen within a predetermined range of the distance screen comprises: acquiring an object whose distance screen is within a predetermined range; detecting whether the acquired object has heat; and if detecting that the object has heat, viewing the object having the heat as viewing Object. An object that is within a predetermined range may have a non-viewing object, and does not need to issue a prompt message to the non-viewing object. By viewing the object as an object having heat, it is determined whether the object is viewed by detecting whether the obtained object has heat. Object.

For example, in this embodiment, the distance between the viewing object and the screen can be detected by using distance transmission. The sensor performs detection, and generally has an object such as a viewing object and a furniture within a predetermined range from the screen. In order to distinguish an object such as a viewing object from a furniture, the viewing object within a predetermined range from the screen may be first acquired, and whether the acquired object is detected has A heat object, if it is detected that the object has heat, the object having the heat is regarded as a viewing object, and then it is judged whether the distance between the viewing object and the screen is less than a preset value.

Further, the user can also select whether to use the screen control method provided by the embodiment of the present application according to the needs of the user. If the user does not want the screen to output the prompt information, the screen control method can be turned off; if the user selects to enable the screen control method, After the method is turned on, it is detected whether the working state of the distance sensor is normal, so as to ensure that the detecting work can be performed normally.

The embodiment of the present application also provides a screen control device. The screen control device of the embodiment of the present application can be used to perform the screen control method provided by the embodiment of the present application. The screen control method of the embodiment of the present application can also be performed by the screen control device provided by the embodiment of the present application.

FIG. 3 is a schematic diagram of a screen control device according to an embodiment of the present application. As shown, the screen control device includes a capture unit 10, a detection unit 20, a first determination unit 30, and a prompt unit 40.

The capturing unit 10 is for capturing a viewing object that views the screen within a predetermined range from the screen. Usually, the viewing object views the screen within a predetermined range from the screen, and the predetermined range may be a transmissive space in front of the screen, or a space having an angle with the screen, which is generally a range in which the viewing object can view the screen.

The detecting unit 20 is for detecting the distance of the viewing object from the screen.

The first determining unit 30 is configured to determine whether the distance between the viewing object and the screen is less than a preset distance.

The prompting unit 40 is configured to control the screen to output the prompt information when it is determined that the distance between the viewing object and the screen is less than the preset distance.

The closer the viewing object is to the screen, the greater the damage to the eye of the viewing object, such as the light of the screen. To protect the eyes of the viewing object, the preset distance is the eye damage to the viewing object. The minimum or no damage safety distance, when detecting that the distance between the viewing object and the screen is less than the preset distance, outputting prompt information to prompt the viewing object to be too close to the screen, wherein the output prompt information may be an audible alarm (such as a section) Music), can be a text prompt (such as "you are too close to the screen"), or a combination of the two to achieve the purpose of prompting the viewer to be too close to the screen. The above embodiment solves the problem that the prior art cannot detect the distance between the user and the screen, thereby achieving the effect of detecting the distance between the user and the screen.

Preferably, the screen control device further includes a second determining unit, configured to determine, after determining that the distance between the viewing object and the screen is less than a preset value, whether the dwell time of the viewing object within the preset distance is greater than a preset time, if If the retention time is greater than the preset time, the control screen outputs a prompt message.

Further, the screen control device further includes a setting unit 50, a third determining unit 60, and a determining unit 70 as shown in FIG. 4:

The setting unit 50 is configured to prompt the user to set a minimum distance between the control subject and the screen before capturing the viewing object within a predetermined range of the screen. Users can view objects Different settings set different minimum distances, for example, for children and adults, different minimum distances can be set as the preset distance, and the minimum distance set for adults is larger than the minimum distance set for children.

The third determining unit 60 is configured to determine whether the minimum distance set by the user is received.

The determining unit 70 is configured to use the minimum distance as the preset distance when receiving the minimum distance set by the user. When the minimum distance set by the user is not received, the default distance of the screen is obtained, and the default distance is used as the preset distance.

Preferably, the viewing object is a plurality of viewing objects, and the detecting unit is further configured to detect a distance between each of the plurality of viewing objects and the screen to obtain a plurality of distances, and the first determining unit is further configured to determine the distance between the viewing object and the screen. Whether it is less than the preset distance includes: finding a minimum distance from the plurality of distances; and determining whether a minimum distance among the plurality of distances is smaller than a preset distance. Whether to output the prompt information by determining whether the distance of the viewing object closest to the screen from the screen is less than the preset distance, that is, when the distance between the viewing object closest to the screen and the screen is greater than the preset distance, other viewing objects and the screen The distance is also greater than the preset value, and there is no need to output prompt information; when the distance between the viewing object closest to the screen and the screen is less than the preset value, the prompt information needs to be output, and thus, the distance between the viewing object closest to the screen and the screen can be determined. The distance between the viewing object and the screen is accurately detected in time, and the effect of protecting the eyes of the viewing object is achieved.

Preferably, the capturing unit further comprises: an obtaining module, configured to acquire an object within a predetermined range from the screen; a heat detecting module, configured to detect whether the acquired object has heat; and a determining module, configured to detect when the object has heat , the object with heat as the viewing object. An object that is within a predetermined range may have a non-viewing object, and does not need to issue a prompt message to the non-viewing object. By viewing the object as an object having heat, the object is obtained through detection. Whether the object has heat to determine whether the object is a viewing object.

For example, in the embodiment, detecting the distance between the viewing object and the screen may be detected by using a distance sensor, and generally has an object such as a viewing object and a furniture within a predetermined range from the screen. In order to distinguish objects such as a viewing object from furniture, the distance may be first obtained. A viewing object within a predetermined range of the screen, and detecting whether the acquired object is an object having heat. If the detected object has heat, the object having the heat is regarded as a viewing object, and then determining whether the distance between the viewing object and the screen is less than Set the value.

Further, the user can also select whether to use the screen control device provided by the embodiment of the present application according to the needs of the user. If the user does not want the screen to output the prompt information, the screen control device can be turned off; if the user selects to enable the screen control device, After the device is turned on, it is detected whether the working state of the distance sensor is normal, so as to ensure that the detecting work can be performed normally.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and various changes and modifications may be made to the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application are intended to be included within the scope of the present application.

Claims

A screen control method, comprising:

Capturing a viewing object that views the screen within a predetermined range of the screen;

Detecting a distance between the viewing object and the screen;

Determining whether the distance between the viewing object and the screen is less than a preset distance;

If it is determined that the distance between the viewing object and the screen is less than the preset distance, controlling the screen to output prompt information.
The screen control method according to claim 1, wherein if the distance between the viewing object and the screen is less than the preset distance, the screen control method further comprises:

Determining whether the dwell time of the viewing object within the preset distance is greater than a preset time, and if the dwell time is greater than the preset time, controlling the screen to output the prompt information.
The screen control method according to claim 1, wherein the screen control method further comprises: before the viewing of the viewing object of the screen within a predetermined range of the capture distance screen, the screen control method further comprises:

Prompting a user to set a minimum distance between the viewing object and the screen;

Determining whether the minimum distance set by the user is received;

If the minimum distance set by the user is received, the minimum distance is taken as the preset distance;

If the minimum distance set by the user is not received, the default distance of the screen is acquired, and the default distance is taken as the preset distance.
The screen control method according to claim 1, wherein the viewing object is a plurality of viewing objects.

Detecting a distance between the viewing object and the screen includes: detecting a distance between each of the plurality of viewing objects and the screen, and obtaining a plurality of distances,

Determining whether the distance of the viewing object from the screen is less than a preset distance comprises: finding a minimum distance from the plurality of distances; and determining whether a minimum distance of the plurality of distances is smaller than the preset distance.
The screen control method according to any one of claims 1 to 4, wherein the viewing object that views the screen within a predetermined range of the capture distance screen comprises:

Obtaining an object whose distance from the screen is within the predetermined range;

Detecting whether the acquired object has heat;

If it is detected that the object has heat, an object having heat is taken as the viewing object.
A screen control device, comprising:

a capturing unit, configured to capture a viewing object that views the screen within a predetermined range of the screen;

a detecting unit, configured to detect a distance between the viewing object and the screen;

a first determining unit, configured to determine whether a distance between the viewing object and the screen is less than a preset distance;

The prompting unit is configured to control the screen to output prompt information when determining that the distance between the viewing object and the screen is less than the preset distance.
The screen control device according to claim 6, wherein the screen control device further comprises:

a second determining unit, configured to determine, after the distance between the viewing object and the screen is less than the preset distance, whether a dwell time of the viewing object within the preset distance is greater than a preset time, if The dwell time is greater than the preset time, and the screen is controlled to output the prompt information.
The screen control device according to claim 6, wherein the screen control device further comprises:

a setting unit, configured to prompt the user to set a minimum distance between the viewing object and the screen;

a third determining unit, configured to determine whether the minimum distance set by the user is received;

a determining unit, configured to use the minimum distance as the preset distance when receiving the minimum distance set by the user; and acquiring the minimum distance when the minimum distance set by the user is not received The default distance of the screen, and the default distance is taken as the preset distance.
The screen control device according to claim 6, wherein the viewing object is a plurality of viewing objects.

The detecting unit is further configured to detect a distance between each of the plurality of viewing objects and the screen to obtain a plurality of distances,

The first determining unit is further configured to determine whether the distance between the viewing object and the screen is less than a preset distance, including: searching for a minimum distance from the plurality of distances; and determining whether a minimum distance of the plurality of distances is Less than the preset distance.
The screen control device according to any one of claims 6 to 9, wherein the capturing unit further comprises:

An obtaining module, configured to acquire an object within the predetermined range from the screen;

a heat detecting module for detecting whether the acquired object has heat;

And a determining module configured to use an object having heat as the viewing object when detecting that the object has heat.