Head-mounted device control method and device, head-mounted device and medium

Abstract

The invention relates to a control method and device of head-mounted equipment, the head-mounted equipment and a medium. The control method of the head-mounted device comprises the following steps: acquiring eye information of a user; determining whether the eyes of the user are in a fatigue state or not according to the eye information; and when it is determined that the eyes of the user are in the fatigue state, controlling a screen of the head-mounted device to execute eye protection operation. By controlling the screen of the head-mounted equipment to execute the eye protection operation, the eye fatigue of the user is dynamically relieved by the picture displayed on the screen, so that the relieving effect of the eye fatigue is improved. Meanwhile, as the eye fatigue is relieved through the picture displayed on the screen, a device for relieving the eye fatigue does not need to be additionally arranged in the head-mounted device, and therefore the complexity of the structure and control of the head-mounted device is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a control method and device for a head-mounted device, a head-mounted device, and a medium. Background Art

[0002] At present, with the development of display technology, head-mounted devices with small size and large screens have been favored by the majority of users. Since the screens of head-mounted devices use organic light-emitting diode (OLED) technology for display, users will experience eye fatigue after using the head-mounted devices. The head-mounted devices can relieve eye fatigue through preset programs. However, in the process of relieving eye fatigue, there is a problem of poor relief effect. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a control method and device for a head-mounted device, a head-mounted device and a medium.

[0004] According to a first aspect of an embodiment of the present disclosure, a method for controlling a head mounted device is provided, the method for controlling a head mounted device comprising:

[0005] Get the user's eye information;

[0006] Determining whether the user's eyes are in a fatigue state according to the eye information;

[0007] When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

[0008] In some embodiments of the present disclosure, before controlling the screen of the head mounted device to perform the eye protection operation, the method for controlling the head mounted device further includes:

[0009] Sending a first prompt message to the user, where the first prompt message is used to prompt the user whether to perform the eye protection operation;

[0010] The controlling the screen of the head mounted device to perform the eye protection operation includes:

[0011] In response to the user's confirmation operation on the first prompt information, the screen of the head mounted device is controlled to perform the eye protection operation.

[0012] In some embodiments of the present disclosure, the determining operation includes:

[0013] The duration of the user's eye being located in the first area of ​​the screen at the gaze point of the screen is greater than or equal to a first preset time; or,

[0014] The voice message sent by the user contains preset keywords.

[0015] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform an eye protection operation includes:

[0016] Displaying a preset mark on the screen;

[0017] The preset mark is controlled to move along a preset track.

[0018] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform the eye protection operation further includes:

[0019] Obtaining the gaze point of the user's eyes on the screen;

[0020] A target marker is displayed at the gaze point.

[0021] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform the eye protection operation further includes:

[0022] Displaying a preset image on the screen, wherein the preset image is used to reduce eye fatigue of the user;

[0023] Wherein, the movable ranges of the preset mark and the target mark are both located within the outer contour of the preset image.

[0024] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform the eye protection operation further includes:

[0025] When the target mark and the preset mark at least partially overlap, issuing a second prompt message;

[0026] When the target mark is separated from the preset mark, a third prompt message is issued.

[0027] In some embodiments of the present disclosure, the eye information includes blinking frequency and / or eye closing time; and determining whether the user's eyes are in a fatigue state according to the eye information includes:

[0028] When the blinking frequency is greater than or equal to a preset frequency, and / or the eye closing time is greater than or equal to a second preset time, it is determined that the user's eyes are in a fatigue state.

[0029] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform an eye protection operation includes:

[0030] According to the blinking frequency and / or the eye closing time, the brightness and / or contrast of the picture displayed on the screen is reduced.

[0031] In some embodiments of the present disclosure, the eye information includes eye usage time, eye temperature and / or eye humidity; and determining whether the user's eyes are in a fatigue state based on the eye information includes:

[0032] When the eye usage time is greater than or equal to a third preset time, and / or the eye temperature is greater than or equal to a preset temperature, and / or the eye humidity is less than or equal to a preset humidity, it is determined that the user's eyes are in a fatigue state.

[0033] In some embodiments of the present disclosure, controlling the screen of the head mounted device to perform an eye protection operation includes:

[0034] The brightness and / or contrast of the image displayed on the screen is reduced according to the eye usage time, and / or the eye temperature, and / or the eye humidity.

[0035] According to a second aspect of an embodiment of the present disclosure, a control device for a head mounted device is provided, the control device for the head mounted device comprising:

[0036] An acquisition module, wherein the acquisition module is configured to acquire eye information of a user;

[0037] a determination module, the determination module being configured to determine whether the user's eyes are in a fatigue state according to the eye information;

[0038] A control module is configured to control the screen of the head mounted device to perform eye protection operations when it is determined that the user's eyes are in a state of fatigue.

[0039] According to a third aspect of an embodiment of the present disclosure, a head mounted device is provided, the head mounted device comprising:

[0040] processor;

[0041] a memory for storing instructions executable by the processor;

[0042] Wherein, the processor is configured to execute:

[0043] Get the user's eye information;

[0044] Determining whether the user's eyes are in a fatigue state according to the eye information;

[0045] When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

[0046] According to a fourth aspect of an embodiment of the present disclosure, a non-transitory computer-readable storage medium is provided. When instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute:

[0047] Get the user's eye information;

[0048] Determining whether the user's eyes are in a fatigue state according to the eye information;

[0049] When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

[0050] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0051] Obtain the user's eye information and determine the state of the user's eyes when using the head-mounted device. Based on the eye information, determine whether the user's eyes are in a state of fatigue to determine whether the user's eye fatigue needs to be relieved. When it is determined that the user's eyes are in a state of fatigue, control the screen of the head-mounted device to perform eye protection operations to relieve the user's eye fatigue. By controlling the screen of the head-mounted device to perform eye protection operations, the user's eye fatigue is dynamically relieved by the images displayed on the screen, thereby improving the effect of relieving eye fatigue. At the same time, since eye fatigue is relieved by the images displayed on the screen, there is no need to add an additional device for relieving eye fatigue to the head-mounted device, thereby reducing the complexity of the structure and control of the head-mounted device.

[0052] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0054] Figure 1 is a curve showing the change of the opening and closing amplitude over time according to an exemplary embodiment;

[0055] Figure 2 is a flowchart of a method for controlling a head mounted device according to an exemplary embodiment;

[0056] Figure 3 is a flowchart of a method for controlling a head mounted device according to another exemplary embodiment;

[0057] Figure 4 is a schematic diagram of an image displayed on a screen during an eye protection operation according to an exemplary embodiment;

[0058] Figure 5 is a flowchart of a method for controlling a head mounted device according to another exemplary embodiment;

[0059] Figure 6 is a curve showing the change of brightness with fatigue degree according to an exemplary embodiment;

[0060] Figure 7 is a flowchart of a method for controlling a head mounted device according to another exemplary embodiment;

[0061] Figure 8 is a block diagram of a control device for a head mounted device according to an exemplary embodiment;

[0062] Fig. 9 is a block diagram of a head mounted device according to an exemplary embodiment.

[0063] In the figure:

[0064] 100-acquisition module; 200-determination module; 300-control module; 400-head-mounted device; 402-processing component; 404-memory; 406-power component; 408-multimedia component; 410-audio component; 412-input and output interface; 414-sensor component; 416-communication component; 420-processor. DETAILED DESCRIPTION

[0065] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0066] At present, with the development of display technology, the screen of head-mounted devices can reach hundreds of inches without occupying the space of the user's house. Users can display the images displayed by electronic devices such as mobile phones, tablets, and laptops on the screen of the head-mounted device by projection or data cable connection to enhance the visual experience. In order to further improve the effect of the picture display, the screen of the head-mounted device adopts organic light-emitting diode technology or silicon-based organic light-emitting diode (Micro OLED) technology for display, and the refresh rate of the screen can reach more than 60Hz. However, the screen flickering of the screen can easily cause eye fatigue in the user and cause discomfort in the user's eyes. In order to reduce the fatigue of the user's eyes, the head-mounted device will send a prompt message to the user after running for a certain period of time, prompting the user to take off the head-mounted device for a rest. Although it can reduce the fatigue of the user's eyes to a certain extent, the process of taking off and putting on the head-mounted device is cumbersome, and the user may ignore the prompt message and continue to use the head-mounted device.

[0067] In the related art, a head mounted device is provided, which includes a massage device. When the head mounted device is operated for a certain period of time, the head mounted device will apply heat and massage to the user's eyes through the massage device, so that the user can relieve eye fatigue without taking off the head mounted device. However, due to the limited size of the head mounted device, the massage device is relatively simple, resulting in poor effect of relieving eye fatigue. In addition, since the massage device needs to be provided in the head mounted device, the weight of the head mounted device is increased, and the control of the head mounted device is made more complicated.

[0068] In order to solve the above technical problems, the present disclosure provides a control method for a head-mounted device. When it is determined that the user's eyes are in a fatigue state based on the user's eye information, the screen of the head-mounted device is controlled to perform an eye protection operation, so that the image displayed on the screen can relieve the user's eye fatigue. Since the image displayed on the screen can dynamically relieve the user's eye fatigue, the effect of relieving eye fatigue can be improved compared to the passive method of relieving eye fatigue. At the same time, since there is no need to set a massage device in the head-mounted device to massage the user's eyes, the weight of the head-mounted device is lighter and there is no need to control the massage device, thereby reducing the complexity of the structure and control of the head-mounted device.

[0069] For ease of understanding, the head mounted device of the present disclosure is first described. The head mounted device may include an eye tracking device. The eye tracking device can monitor the user's eyes to determine whether the user's eyes are tired and determine the area where the user is looking. Figure 1 As shown, the eye tracking device can determine the opening and closing amplitude of the user's eyes within a certain period of time to determine the user's blinking frequency and eye closing time. Among them, the horizontal axis represents time, and the vertical axis represents the opening and closing amplitude of the eyes. The eye tracking device can enable the user to interact with the head-mounted device through the eyes by determining the area where the user is looking at. When the time when the user's eyes remain fixed on the gaze point of the screen reaches a first preset time, it can be determined that the user agrees to the operation of the area where the gaze point is located. The head-mounted device may also include a voice control device. The voice control device is capable of receiving voice information sent by the user and controlling the head-mounted device according to the voice information. The head-mounted device may also include a temperature and humidity detection device. The temperature and humidity detection device is capable of detecting the temperature and humidity of the corresponding area of ​​the screen.

[0070] The present disclosure provides a method for controlling a head mounted device. Figure 2 As shown, the method includes:

[0071] S100: Obtain user's eye information.

[0072] S200: Determine whether the user's eyes are in a fatigue state based on the eye information.

[0073] S300: When it is determined that the user's eyes are in a state of eye fatigue, control the screen of the head mounted device to perform an eye protection operation.

[0074] In this embodiment, the user's eye information is obtained to determine the state of the user's eyes when using the head-mounted device. Based on the eye information, it is determined whether the user's eyes are in a fatigued state to determine whether the user's eye fatigue needs to be relieved. When it is determined that the user's eyes are in a fatigued state, the screen of the head-mounted device is controlled to perform an eye protection operation to relieve the user's eye fatigue. By controlling the screen of the head-mounted device to perform an eye protection operation, the user's eye fatigue is dynamically relieved by the picture displayed on the screen, thereby improving the effect of relieving eye fatigue. At the same time, since eye fatigue is relieved by the picture displayed on the screen, there is no need to add an additional device for relieving eye fatigue to the head-mounted device, thereby reducing the complexity of the structure and control of the head-mounted device.

[0075] Exemplarily, in step S100, the user's eye information is obtained. For a head-mounted device equipped with an eye tracking device, the user's eyes can be monitored by the eye tracking device in the head-mounted device, and the blinking frequency and / or eye closing time can be used as the eye information. For a head-mounted device without an eye tracking device, the usage time of the head-mounted device can be used as the eye usage time, and the eye usage time can be used as the eye information. For a head-mounted device equipped with a temperature and humidity detection device, since the positions of the temperature and humidity detection devices in different head-mounted devices are different, it is necessary to adjust the detected temperature and humidity to improve the accuracy of the head-mounted device control. The adjusted temperature and humidity are used as the eye temperature and eye humidity, and the eye temperature and / or eye humidity are used as the eye information. Therefore, the control method of the head-mounted device provided in the embodiment of the present disclosure is applicable to different types of head-mounted devices, and has the advantage of strong versatility.

[0076] In one embodiment, determining whether the user's eyes are in a fatigue state according to the eye information in step S200 may be determined in the following manner:

[0077] When the blinking frequency is greater than or equal to a preset frequency, it is determined that the user's eyes are in a fatigue state.

[0078] In this embodiment, the user's eyes can be monitored by the eye tracking device to obtain the blinking frequency. Since the blinking frequency of the user will increase when the eyes are in a fatigued state, it can be determined that the user's eyes are in a fatigued state when the blinking frequency is greater than or equal to the preset frequency. By determining that the user's eyes are in a fatigued state when the blinking frequency is high, the differences in the physical constitutions of different users can be avoided to accurately determine the timing of the eye being in a fatigued state, thereby improving the effect and reliability of eye fatigue relief.

[0079] For example, the preset frequency may be in the range of 20 times / min to 30 times / min, or may be 24 times / min, 26 times / min, 28 times / min, etc.

[0080] Exemplarily, when determining whether the user's eyes are in a fatigue state only by the blinking frequency, if the blinking frequency is less than a preset frequency, it is determined that the user's eyes are not in a fatigue state.

[0081] In one embodiment, determining whether the user's eyes are in a fatigue state according to the eye information in step S200 may also be determined in the following manner:

[0082] When the eye closing time is greater than or equal to the second preset time, it is determined that the user's eyes are in a fatigue state.

[0083] In this embodiment, the user's eyes can be monitored by the eye tracking device to obtain the eye closing time. Since the user's eyes are in a fatigued state, the eye closing time will increase. When the eye closing time is greater than or equal to the second preset time, it can be determined that the user's eyes are in a fatigued state. By determining that the user's eyes are in a fatigued state when the eye closing time is longer, the differences in the physical constitutions of different users can be avoided to accurately determine the timing of the eye being in a fatigued state, thereby improving the effect and reliability of eye fatigue relief.

[0084] Exemplarily, the value range of the second preset time may be 3s to 7s. The value of the second preset time may be 4s, 5s, 6s, etc.

[0085] Exemplarily, when determining whether the user's eyes are in a fatigue state only based on the eye-closing time, if the eye-closing time is less than the second preset time, it is determined that the user's eyes are not in a fatigue state.

[0086] Exemplarily, when determining whether the user's eyes are in a fatigue state based on the blinking frequency and the eye closing time, if the blinking frequency is less than a preset frequency and the eye closing time is less than a second preset time, it is determined that the user's eyes are not in a fatigue state.

[0087] In one embodiment, determining whether the user's eyes are in a fatigue state according to the eye information in step S200 can also be determined in the following manner:

[0088] When the eye use time is greater than or equal to the third preset time, it is determined that the user's eyes are in a fatigue state.

[0089] In this embodiment, since there is no eye tracking device in the head mounted device, the user's eyes cannot be monitored, and the eye usage time is used as eye information. When the eye usage time is greater than or equal to the third preset time, the user has used the head mounted device for a long time, and it is determined that the user's eyes are in a fatigued state. By determining that the user's eyes are in a fatigued state when the head mounted device is used for a long time, the fatigue of the user's eyes can be alleviated when the head mounted device does not include an eye tracking device, thereby reducing the complexity of the structure and control of the head mounted device.

[0090] For example, the value range of the third preset time may be 0.5h to 2h. The value of the third preset time may be 0.75h, 1h, 1.25h, etc.

[0091] Exemplarily, when determining whether the user's eyes are in a fatigue state only based on the eye usage time, if the eye usage time is less than a third preset time, it is determined that the user's eyes are not in a fatigue state.

[0092] In one embodiment, determining whether the user's eyes are in a fatigue state according to the eye information in step S200 can also be determined in the following manner:

[0093] When the eye temperature is greater than or equal to a preset temperature, it is determined that the user's eyes are in a fatigue state.

[0094] In this embodiment, the temperature of the corresponding area of ​​the screen can be detected by the temperature and humidity detection device, and the eye temperature can be obtained after adjustment. Since the user's eyes are in a fatigued state, the eye temperature will rise. When the eye temperature is greater than or equal to the preset temperature, it can be determined that the user's eyes are in a fatigued state. By determining that the user's eyes are in a fatigued state when the eye temperature is high, the differences in the physiques of different users can be avoided to accurately determine the time when the eyes are in a fatigued state, thereby improving the effect and reliability of eye fatigue relief.

[0095] Exemplarily, the preset temperature may range from 30° C. to 36° C. The preset temperature may be 31° C., 33° C., 35° C., and the like.

[0096] Exemplarily, when determining whether the user's eyes are in a fatigue state only by using the eye temperature, if the eye temperature is less than a preset temperature, it is determined that the user's eyes are not in a fatigue state.

[0097] In one embodiment, determining whether the user's eyes are in a fatigue state according to the eye information in step S200 can also be determined in the following manner:

[0098] When the eye humidity is less than or equal to the preset humidity, it is determined that the user's eyes are in a fatigue state.

[0099] In this embodiment, the humidity of the corresponding area of ​​the screen can be detected by the temperature and humidity detection device, and the eye humidity can be obtained after adjustment. Since the user's eyes are in a fatigued state, the eye humidity will decrease, and when the eye humidity is less than or equal to the preset humidity, it can be determined that the user's eyes are in a fatigued state. By determining that the user's eyes are in a fatigued state when the eye humidity is low, the differences in the physical constitutions of different users can be avoided to accurately determine the time when the eyes are in a fatigued state, thereby improving the effect and reliability of eye fatigue relief.

[0100] For example, the preset humidity may range from 40% to 60%, or may be 45%, 50%, or 55%.

[0101] Exemplarily, when determining whether the user's eyes are in a fatigue state only based on eye humidity, if the eye humidity is greater than a preset humidity, it is determined that the user's eyes are not in a fatigue state.

[0102] Exemplarily, when determining whether the user's eyes are in a fatigue state based on eye usage time, eye temperature and eye humidity, if the eye usage time is less than a third preset time, the eye temperature is less than a preset temperature and the eye humidity is greater than a preset humidity, it is determined that the user's eyes are not in a fatigue state.

[0103] In one embodiment, before controlling the screen of the head mounted device to perform the eye protection operation in step S300, the method for controlling the head mounted device further includes:

[0104] A first prompt message is sent to the user, where the first prompt message is used to prompt the user whether to perform an eye protection operation.

[0105] In step S300, the screen of the head mounted device is controlled to perform the eye protection operation by:

[0106] In response to the user's confirmation operation on the first prompt information, the screen of the head mounted device is controlled to perform an eye protection operation.

[0107] In this embodiment, after determining that the user's eyes are in a state of eye fatigue, a first prompt message is sent to the user to prompt the user whether to perform an eye protection operation. When the user needs to perform an eye protection operation, a confirmation operation is responded to the head-mounted device. In response to the user's confirmation operation for the first prompt message, the screen of the head-mounted device is controlled to perform the eye protection operation to relieve the user's eye fatigue. By sending the first prompt message to the user to interact with the user, the eye protection operation is performed with the user's consent, thereby improving the reliability of the head-mounted device control and the user's experience.

[0108] In one embodiment, the determining operation in the above steps includes:

[0109] The duration that the user's eye gaze point on the screen is located in the first area of ​​the screen is greater than or equal to a first preset time.

[0110] In this embodiment, after the head-mounted device sends the first prompt information to the user, different icons are displayed in the first area and the second area of ​​the screen. For a head-mounted device with an eye tracking device, when it is monitored that the user's eyes are fixed on the first area for a long time, the user performs a confirmation operation on the first prompt information. When it is monitored that the user's eyes are fixed on the second area for a long time, the user performs a negative operation on the first prompt information. By determining to perform the eye protection operation by fixing the eyes on the first area of ​​the screen, you only need to move your eyes to interact with the head-mounted device, thereby reducing the complexity of controlling the head-mounted device.

[0111] Exemplarily, the value range of the first preset time may be 1s to 5s. The value of the first preset time may be 2s, 3s, 4s, etc.

[0112] In one embodiment, the determining operation in the above steps includes:

[0113] The voice message sent by the user contains preset keywords.

[0114] In this embodiment, after the head-mounted device sends the first prompt information to the user, a voice prompt will be played to ask whether to perform the eye protection operation. The user interacts with the head-mounted device by sending voice information. When the voice information contains preset keywords, the user performs a confirmation operation on the first prompt information. When the voice information does not contain the preset keywords or contains negative keywords, the user performs a negative operation on the first prompt information. By sending voice information to determine whether to perform the eye protection operation, a head-mounted device that does not include an eye tracking device can also interact with the user, thereby improving the reliability of the head-mounted device control.

[0115] In one embodiment, if Figure 3 As shown, the control of the screen of the head mounted device to perform the eye protection operation in step S300 can be determined in the following manner:

[0116] S310, displaying a preset mark on the screen.

[0117] S320, controlling the preset mark to move along the preset track.

[0118] In this embodiment, a preset mark is displayed on the screen, and the preset mark is controlled to move along a preset track, guiding the user's eyes to move along the movement of the preset mark. By following the movement of the preset mark, the user's eye fatigue can be dynamically relieved, thereby improving the effect of relieving eye fatigue. At the same time, since the preset mark is displayed on the screen to relieve the user's eye fatigue, the user does not need to take off the head-mounted device, thereby improving the user's experience.

[0119] For example, Figure 4 As shown, the preset track can be in a certain shape along the edge of the screen, such as a circle, an ellipse, etc. The preset mark is located on the preset track and moves along the preset track. When the preset mark moves, it can only move in a single direction, or it can change the direction of movement after moving in one direction for a certain period of time. Figure 4 The dotted line in the figure indicates the preset track, and the circle 1 indicates the preset mark.

[0120] In one embodiment, if Figure 5 As shown, controlling the screen of the head mounted device to perform the eye protection operation in step S300 also includes:

[0121] S330: Obtain the gaze point of the user's eyes on the screen.

[0122] S340: Display a target mark at the gaze point.

[0123] In this embodiment, since the head-mounted device has an eye tracking device, the user's eye gaze point on the screen can be displayed on the screen, which is convenient for the user to determine the position of the eye gaze. By adding a target mark to the eye protection operation, the user's eyes can accurately follow the position of the preset mark, thereby improving the effect of relieving eye fatigue. At the same time, since the user can compare the target mark on the screen with the preset mark, the eye protection operation is more interesting, thereby improving the user experience.

[0124] For example, Figure 4 As shown, the target mark is located on the screen and moves with the movement of the user's eyes. The color of the preset mark can be different from the color of the target mark, so that the user can distinguish the preset mark from the target mark. For example, the color of the preset mark can be green, and the color of the target mark can be white. Alternatively, the size and shape of the preset mark can be different from the size and shape of the target mark, so that the user can distinguish the preset mark from the target mark. For example, the size of the preset mark can be a preset multiple of the size of the target mark. Figure 4 The circle 2 in the figure indicates the target marker.

[0125] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 further includes:

[0126] The preset image is displayed on the screen, and the preset image is used to reduce the user's eye fatigue.

[0127] The activity ranges of the preset mark and the target mark are both within the outer contour of the preset image.

[0128] In this embodiment, by adding a preset image as the background during the eye protection operation, the user's eye fatigue can be further relieved, thereby improving the eye fatigue relief effect. At the same time, the activity range of the preset mark and the target mark are both within the outer contour of the preset image, avoiding the preset mark and the target mark being covered by the preset image and failing to achieve the purpose of dynamically relieving eye fatigue, thereby improving the reliability of eye fatigue relief.

[0129] Exemplarily, the preset mark and the target mark may cover part of the preset image to facilitate the user to determine the positions of the preset mark and the target mark.

[0130] Exemplarily, the preset image may be a static image or a dynamic image. The preset image may be, for example, an image containing natural landscapes such as a seascape image or a forest image.

[0131] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 further includes:

[0132] When the target mark and the preset mark at least partially overlap, a second prompt message is issued.

[0133] When the target mark is separated from the preset mark, a third prompt message is issued.

[0134] In this embodiment, during the process of the screen performing the eye protection operation, since the user's eyes are required to move following the preset mark, different prompt information is issued to prompt the user when the positional relationship between the target mark and the preset mark is different. When the target mark and the preset mark at least partially overlap, the user's eyes can accurately move following the preset mark, and a second prompt information is issued to prompt the user to inform and encourage the user's eyes to successfully follow the preset mark. When the target mark is separated from the preset mark, the user's eyes fail to move following the preset mark, and a third prompt information is issued to prompt the user to inform the user that the user's eyes need to move following the preset mark. By issuing different prompt information when the positional relationship between the target mark and the preset mark is different, the interest of the eye protection operation is increased, thereby improving the user's experience.

[0135] Exemplarily, the second prompt information and the third prompt information may be issued in the form of display or voice.

[0136] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0137] Reduce the brightness of the image displayed on the screen according to the frequency of blinking.

[0138] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the brightness of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the brightness of the picture displayed on the screen according to the blinking frequency, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0139] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0140] Reduce the contrast of the image displayed on the screen according to the frequency of blinking.

[0141] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the contrast of the picture remains unchanged, it will cause the user's eye fatigue to increase. By dynamically reducing the contrast of the picture displayed on the screen according to the blinking frequency, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0142] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0143] According to the time you close your eyes, the brightness of the image displayed on the screen is reduced.

[0144] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the brightness of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the brightness of the picture displayed on the screen according to the eye closing time, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0145] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0146] Reduce the contrast of the image displayed on the screen according to the time you close your eyes.

[0147] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the contrast of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the contrast of the picture displayed on the screen according to the eye closing time, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0148] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0149] Reduce the brightness of the screen display according to the time your eyes are used.

[0150] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the brightness of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the brightness of the picture displayed on the screen according to the eye use time, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0151] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0152] Reduce the contrast of the images displayed on the screen according to the time your eyes are used.

[0153] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the contrast of the picture remains unchanged, it will cause the user's eye fatigue to increase. By dynamically reducing the contrast of the picture displayed on the screen according to the eye use time, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0154] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0155] Reduces the brightness of the screen display according to the eye temperature.

[0156] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the brightness of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the brightness of the picture displayed on the screen according to the eye temperature, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0157] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0158] Reduces the contrast of images displayed on the screen according to the temperature of your eyes.

[0159] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the contrast of the picture remains unchanged, it will cause the user's eye fatigue to increase. By dynamically reducing the contrast of the picture displayed on the screen according to the eye temperature, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0160] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0161] According to the moisture in the eyes, the brightness of the image displayed on the screen is reduced.

[0162] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the brightness of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the brightness of the picture displayed on the screen according to the eye humidity, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0163] In one embodiment, controlling the screen of the head mounted device to perform the eye protection operation in step S300 may also be determined in the following manner:

[0164] Reduces the contrast of the image displayed on the screen according to the moisture in the eyes.

[0165] In this embodiment, since the user may still need to watch the picture displayed by the head mounted device when the eyes are tired, and the head mounted device does not control the screen to perform eye protection operations, if the contrast of the picture remains unchanged, the user's eye fatigue will be aggravated. By dynamically reducing the contrast of the picture displayed on the screen according to the eye humidity, the user's eye fatigue can be reduced without affecting the user's viewing of the picture, thereby improving the effect of alleviating eye fatigue.

[0166] It is understandable that in the process of relieving eye fatigue through preset marks, the user can also reduce the brightness and / or contrast of the image displayed on the screen according to the blinking frequency, eye closure time, eye use time, eye temperature and / or eye humidity, which is not limited here.

[0167] Exemplarily, in the process of reducing the brightness and / or contrast of the screen display according to the blinking frequency, eye closing time, eye use time, eye temperature and / or eye humidity, the blinking frequency, eye closing time, eye use time, eye temperature and / or eye humidity may be first converted into the degree of eye fatigue. According to the degree of eye fatigue, the brightness and / or contrast of the screen display is reduced. For example, the user's blinking frequency is a1 times / min, the upper limit of the blinking frequency when tired is a2 times / min, and the upper limit of the blinking frequency when comfortable is a3 times / min, then the fatigue degree x can be expressed as (a1-a3) / (a2-a3). Among them, when the fatigue degree x is less than 0, the fatigue degree x is determined to be 0. After determining the fatigue degree x, the brightness and / or contrast of the screen display can be reduced according to the functional relationship between the fatigue degree x and the brightness and / or contrast. For example, the functional relationship between the fatigue degree x and the brightness y can be: y=exp(-k*x)*0.5+0.3. Wherein, k is a constant, which can be 1.5, 2, 2.5, etc. Since different head mounted devices have different maximum brightness, the brightness y is expressed in the form of a percentage. After the brightness y is determined according to the fatigue level x, the brightness of the picture can be reduced to the brightness y. Figure 6 A curve between brightness y and fatigue level x is shown.

[0168] The present disclosure provides a method for controlling a head mounted device. Figure 7 As shown, the method includes:

[0169] S400: Obtain user's eye information.

[0170] S410: When the blinking frequency is greater than or equal to the preset frequency and / or the eye closing time is greater than or equal to the second preset time, it is determined that the user's eyes are in a fatigue state.

[0171] S420: Send a first prompt message to the user.

[0172] S430: In response to the time duration that the user's eye gaze point on the screen is located in the first area of ​​the screen is greater than or equal to a first preset time, display a preset mark on the screen.

[0173] S440, controlling the preset mark to move along the preset track.

[0174] S450: Obtain the gaze point of the user's eyes on the screen.

[0175] S460: Display a target mark at the gaze point.

[0176] S470: Display a preset image on the screen.

[0177] S480: When the target mark and the preset mark at least partially overlap, a second prompt message is issued.

[0178] S490: When the target mark is separated from the preset mark, a third prompt message is issued.

[0179] In this embodiment, the user's eye information is obtained to determine whether the user's eyes are in a fatigue state. When the blinking frequency is high and / or the eye closing time is long, the user's eyes are fatigued, and the head-mounted device needs to be controlled to relieve the user's eye fatigue. A first prompt message is sent to the user to determine whether an eye protection operation needs to be performed. In response to the user's eyes continuously gazing at the first area in the screen, the user determines that the head-mounted device needs to control the screen to perform an eye protection operation, and a preset mark is displayed on the screen and the preset mark is controlled to move along a preset trajectory. The user's eye gaze point on the screen is obtained, and a target mark is displayed at the gaze point so that the user determines whether the gaze point follows the preset mark. A preset image is displayed on the screen to further relieve the user's eye fatigue with the preset image. According to the positional relationship between the target mark and the preset mark, different prompt messages are issued to prompt the user whether the eye follows the preset mark. By controlling the screen of the head-mounted device to perform the eye protection operation, the user's eye fatigue is dynamically relieved by the picture displayed on the screen, thereby improving the effect of relieving eye fatigue. At the same time, since the picture displayed on the screen relieves eye fatigue, there is no need to add an additional device for relieving eye fatigue in the head-mounted device, thereby reducing the complexity of the structure and control of the head-mounted device. Moreover, since the user can compare the target mark and the preset mark on the screen, the eye protection operation becomes more interesting, thereby improving the user experience.

[0180] In an exemplary embodiment, a control device for a head-mounted device is provided, and the control device for the head-mounted device is used to implement the above method. Figure 8 As shown, the control device of the head mounted device may include an acquisition module 100, a determination module 200 and a control module 300, wherein, in the process of implementing the above method,

[0181] The acquisition module 100 is configured to acquire eye information of the user.

[0182] The determination module 200 is configured to determine whether the user's eyes are in a fatigue state based on the eye information.

[0183] The control module 300 is configured to control the screen of the head mounted device to perform eye protection operations when it is determined that the user's eyes are in a state of fatigue.

[0184] In an exemplary embodiment, a control device for a head mounted device is provided, in which a determination module 200 is configured to:

[0185] When the blinking frequency is greater than or equal to a preset frequency, it is determined that the user's eyes are in a fatigue state.

[0186] In an exemplary embodiment, a control device for a head mounted device is provided, in which a determination module 200 is configured to:

[0187] When the eye closing time is greater than or equal to the second preset time, it is determined that the user's eyes are in a fatigue state.

[0188] In an exemplary embodiment, a control device for a head mounted device is provided, in which a determination module 200 is configured to:

[0189] When the eye use time is greater than or equal to the third preset time, it is determined that the user's eyes are in a fatigue state.

[0190] In an exemplary embodiment, a control device for a head mounted device is provided, in which a determination module 200 is configured to:

[0191] When the eye temperature is greater than or equal to a preset temperature, it is determined that the user's eyes are in a fatigue state.

[0192] In an exemplary embodiment, a control device for a head mounted device is provided, in which a determination module 200 is configured to:

[0193] When the eye humidity is less than or equal to the preset humidity, it is determined that the user's eyes are in a fatigue state.

[0194] In an exemplary embodiment, a control device for a head mounted device is provided, the device further comprising:

[0195] The sending module is configured to send a first prompt message to the user.

[0196] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0197] In response to the user's confirmation operation on the first prompt information, the screen of the head mounted device is controlled to perform an eye protection operation.

[0198] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0199] Displays the preset mark on the screen.

[0200] Control the preset marker to move along the preset track.

[0201] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0202] Get the point where the user's eyes are looking at the screen.

[0203] Displays a target marker at the gaze point.

[0204] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0205] Displays a preset image on the screen.

[0206] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0207] When the target mark and the preset mark at least partially overlap, a second prompt message is issued.

[0208] When the target mark is separated from the preset mark, a third prompt message is issued.

[0209] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0210] Reduce the brightness of the image displayed on the screen according to the frequency of blinking.

[0211] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0212] Reduce the contrast of the image displayed on the screen according to the frequency of blinking.

[0213] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0214] According to the time you close your eyes, the brightness of the image displayed on the screen is reduced.

[0215] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0216] Reduce the contrast of the image displayed on the screen according to the time you close your eyes.

[0217] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0218] Reduce the brightness of the screen display according to the time your eyes are used.

[0219] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0220] Reduce the contrast of the images displayed on the screen according to the time your eyes are used.

[0221] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0222] Reduces the brightness of the screen display according to the eye temperature.

[0223] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0224] Reduces the contrast of images displayed on the screen according to the temperature of your eyes.

[0225] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0226] According to the moisture in the eyes, the brightness of the image displayed on the screen is reduced.

[0227] In an exemplary embodiment, a control device for a head mounted device is provided, in which a control module 300 is configured to:

[0228] Reduces the contrast of the image displayed on the screen according to the moisture in the eyes.

[0229] In an exemplary embodiment, a head mounted device is provided, and the head mounted device is, for example, virtual reality (VR) glasses, augmented reality (AR) glasses, mixed reality (MR) glasses, etc.

[0230] refer to Fig. 9 As shown, the head mounted device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0231] The processing component 402 generally controls the overall operation of the head mounted device 400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 402 may include one or more modules to facilitate the interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0232] The memory 404 is configured to store various types of data to support the operation of the head mounted device 400. Examples of such data include instructions for any application or method operating on the head mounted device 400, contact data, phone book data, messages, pictures, videos, etc. The memory 404 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0233] The power supply component 406 provides power to various components of the head mounted device 400. The power supply component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the head mounted device 400.

[0234] The multimedia component 408 includes a screen that provides an output interface between the head-mounted device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front camera module and / or a rear camera module. When the head-mounted device 400 is in an operating mode, such as a shooting mode or a video mode, the front camera module and / or the rear camera module may receive external multimedia data. Each front camera module and the rear camera module may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0235] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC), and when the head mounted device 400 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 404 or sent via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0236] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0237] The sensor assembly 414 includes one or more sensors for providing various aspects of status assessment for the head mounted device 400. For example, the sensor assembly 414 can detect the open / closed state of the head mounted device 400, the relative positioning of components, such as the display and keypad of the head mounted device 400, the sensor assembly 414 can also detect the position change of the head mounted device 400 or a component of the head mounted device 400, the presence or absence of contact between the user and the head mounted device 400, the orientation or acceleration / deceleration of the head mounted device 400, and the temperature change of the head mounted device 400. The sensor assembly 414 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0238] The communication component 416 is configured to facilitate wired or wireless communication between the head mounted device 400 and other terminals. The head mounted device 400 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0239] In an exemplary embodiment, the head mounted device 400 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above-described method.

[0240] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, and the instructions can be executed by a processor 420 of a head mounted device 400 to complete the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, and an optical data storage terminal. When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to execute the method shown in the above embodiment.

[0241] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0242] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0243] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for controlling a head mounted device, characterized in that: The control method of the head mounted device comprises: Get the user's eye information; Determining whether the user's eyes are in a fatigue state according to the eye information; When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

2. The method for controlling a head mounted device according to claim 1, characterized in that: Before controlling the screen of the head mounted device to perform the eye protection operation, the method for controlling the head mounted device further includes: Sending a first prompt message to the user, where the first prompt message is used to prompt the user whether to perform the eye protection operation; The controlling the screen of the head mounted device to perform the eye protection operation includes: In response to the user's confirmation operation on the first prompt information, the screen of the head mounted device is controlled to perform the eye protection operation.

3. The method for controlling a head mounted device according to claim 2, wherein: The determining operation includes: The duration of the user's eye being located in the first area of ​​the screen at the gaze point of the screen is greater than or equal to a first preset time; or, The voice message sent by the user contains preset keywords.

4. The method for controlling a head mounted device according to claim 1, wherein: The controlling the screen of the head mounted device to perform the eye protection operation includes: Displaying a preset mark on the screen; The preset mark is controlled to move along a preset track.

5. The method for controlling a head mounted device according to claim 4, characterized in that: The controlling the screen of the head mounted device to perform the eye protection operation further includes: Obtaining the gaze point of the user's eyes on the screen; A target marker is displayed at the gaze point.

6. The method for controlling a head mounted device according to claim 5, characterized in that: The controlling the screen of the head mounted device to perform the eye protection operation further includes: Displaying a preset image on the screen, wherein the preset image is used to reduce eye fatigue of the user; Wherein, the movable ranges of the preset mark and the target mark are both located within the outer contour of the preset image.

7. The method for controlling a head mounted device according to claim 5, characterized in that: The controlling the screen of the head mounted device to perform the eye protection operation further includes: When the target mark and the preset mark at least partially overlap, issuing a second prompt message; When the target mark is separated from the preset mark, a third prompt message is issued.

8. The method for controlling a head mounted device according to any one of claims 1 to 7, characterized in that: The eye information includes blinking frequency and / or eye closing time; The step of determining whether the user's eyes are in a fatigue state according to the eye information includes: When the blinking frequency is greater than or equal to a preset frequency, and / or the eye closing time is greater than or equal to a second preset time, it is determined that the user's eyes are in a fatigue state.

9. The method for controlling a head mounted device according to claim 8, wherein: The controlling the screen of the head mounted device to perform the eye protection operation includes: According to the blinking frequency and / or the eye closing time, the brightness and / or contrast of the picture displayed on the screen is reduced.

10. The method for controlling a head mounted device according to any one of claims 1 to 7, characterized in that: The eye information includes eye usage time, eye temperature and / or eye humidity; and determining whether the user's eyes are in a fatigue state based on the eye information includes: When the eye usage time is greater than or equal to a third preset time, and / or the eye temperature is greater than or equal to a preset temperature, and / or the eye humidity is less than or equal to a preset humidity, it is determined that the user's eyes are in a fatigue state.

11. The method for controlling a head mounted device according to claim 10, wherein: The controlling the screen of the head mounted device to perform the eye protection operation includes: The brightness and / or contrast of the image displayed on the screen is reduced according to the eye usage time, and / or the eye temperature, and / or the eye humidity.

12. A control device for a head mounted device, characterized in that: The control device of the head mounted device comprises: An acquisition module, wherein the acquisition module is configured to acquire eye information of a user; a determination module, the determination module being configured to determine whether the user's eyes are in a fatigue state according to the eye information; A control module is configured to control the screen of the head mounted device to perform eye protection operations when it is determined that the user's eyes are in a state of fatigue.

13. A head mounted device, characterized in that: The head mounted device comprises: processor; a memory for storing instructions executable by the processor; Wherein, the processor is configured to execute: Get the user's eye information; Determining whether the user's eyes are in a fatigue state according to the eye information; When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

14. A non-transitory computer-readable storage medium, characterized in that: When the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute: Get the user's eye information; Determining whether the user's eyes are in a fatigue state according to the eye information; When it is determined that the user's eyes are in a state of eye fatigue, the screen of the head mounted device is controlled to perform eye protection operations.

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