WO2018191847A1 - Head-mountable display device and method for power conditioning sensor thereof - Google Patents

Head-mountable display device and method for power conditioning sensor thereof Download PDF

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Publication number
WO2018191847A1
WO2018191847A1 PCT/CN2017/080799 CN2017080799W WO2018191847A1 WO 2018191847 A1 WO2018191847 A1 WO 2018191847A1 CN 2017080799 W CN2017080799 W CN 2017080799W WO 2018191847 A1 WO2018191847 A1 WO 2018191847A1
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WO
WIPO (PCT)
Prior art keywords
display device
mounted display
application
head mounted
transmitter
Prior art date
Application number
PCT/CN2017/080799
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French (fr)
Chinese (zh)
Inventor
韩超
Original Assignee
深圳市柔宇科技有限公司
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Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2017/080799 priority Critical patent/WO2018191847A1/en
Priority to CN201780004633.1A priority patent/CN108521816A/en
Publication of WO2018191847A1 publication Critical patent/WO2018191847A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3243—Power saving in microcontroller unit
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer

Definitions

  • the present invention relates to a display device, and more particularly to a head mounted display device and a power adjustment method of the sensor of the head mounted display device.
  • Head-mounted display devices have gradually become popular because of their convenience and ability to achieve stereoscopic display and stereo sound.
  • VR virtual reality
  • head-mounted display devices have become more widely used as hardware support devices for VR technology.
  • the usual detection method is to detect whether there is a human head or the like in the head-mounted display device by using a sensor such as a sensor to determine whether the user wears or removes the head-mounted display device.
  • the sensor transmits the sensing signal at a predetermined frequency every predetermined time interval, and determines whether the person wears the head mounted display device according to the reflected sensing signal. Since the sensor transmits the sensing signals in an interval, in order to make the detecting user wear or remove the head mounted display device more accurate and timely, the transmitting frequency of the sensor is generally set relatively high. However, setting the transmission frequency too high also greatly increases the power loss.
  • the embodiment of the invention discloses a head-mounted display device and a sensor power adjustment method thereof, which can meet the requirement that the head-mounted display device detects whether it is worn or removed, and can effectively reduce energy consumption.
  • the head-mounted display device disclosed in the embodiment of the present invention includes a processor and a sensor, wherein the sensor includes a transmitter and a receiver, and the transmitter is configured to send a sensing signal at a preset transmission frequency, The receiver is configured to receive the reflected sensor signal; the processor is configured to adjust a transmit frequency of the transmitter according to an application currently running by the head mounted display device.
  • the sensor power adjustment method disclosed in the embodiment of the present invention is applied to a head mounted display device, the head mounted display device includes a transmitter and a receiver, and the method includes the steps of: determining a head mounted display An application that is currently running on the device; and adjusts a transmit frequency of the transmitter based on an application currently running by the head mounted display device.
  • the head-mounted display device of the present invention and the sensor power adjustment method thereof are capable of adjusting the transmission frequency of the transmitter according to the response speed requirement of the wearable/removed state change of the head mounted display device according to the currently running application program, so that The transmitter's transmit frequency can be reduced to meet the demand, saving energy.
  • FIG. 1 is a block diagram showing the structure of a head mounted display device in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a head mounted display device in accordance with an embodiment of the present invention.
  • FIG. 3 is a flow chart of a sensor power adjustment method in accordance with an embodiment of the present invention.
  • FIG. 4 is a sub-flow diagram of an embodiment of step S303 of Figure 3.
  • FIG. 5 is a sub-flow diagram of step S303 of Figure 3 in another embodiment.
  • FIG. 6 is a flowchart of a method for adjusting a power of a sensor according to another embodiment of the present invention.
  • FIG. 1 is a structural block diagram of a head mounted display device 100 according to an embodiment of the invention.
  • the head mounted display device 100 includes a processor 10 and a sensor 20.
  • the sensor 20 includes a transmitter 21 and a receiver 22, and the transmitter 21 Used to transmit a sensing signal at a preset transmission frequency.
  • the receiver 22 is configured to receive the reflected sensing signal.
  • the processor 10 is configured to determine, according to the receiving result of the receiver 22, the wearable/removable state of the head mounted display device 100, that is, whether the head mounted display device 100 is in a worn or removed state.
  • the processor 10 adjusts the transmit frequency of the transmitter 21 in accordance with an application currently running by the head mounted display device 100.
  • the processor 10 adjusts the transmit frequency of the transmitter 21 based on the response speed requirement of the wearable/removed state change of the head mounted display device 100 in accordance with the currently running application. Specifically, the processor 10 first determines a response speed requirement of the currently running application to wear/remove the state change of the head mounted display device 100, and then adjusts the transmission frequency of the transmitter 21 according to the determined response speed requirement. .
  • the processor 10 adjusts the transmission frequency of the transmitter 21 to be higher when the response speed requirement of the currently running application to wear/remove the state change of the head mounted display device 100 is higher. Obviously, the lower the response speed requirement of the processor 10 when the currently running application is wearing/removing the state change of the head mounted display device 100, the lower the transmission frequency of the transmitter 21 is adjusted. In some embodiments, the processor 10 confirms the application when the response time of the application to wear/remove the state change of the head mounted display device 100 is allowed to be less than a first predetermined time (eg, 5 seconds).
  • a first predetermined time eg, 5 seconds
  • the response speed requirement for wearing/removing the state change of the head mounted display device 100 is high, and the response time of the application to wear/remove the state change of the head mounted display device 100 is allowed to be greater than the second preset time (for example, 10 seconds). At this time, the processor 10 confirms that the response speed requirement of the application to wear/remove the state change of the head mounted display device 100 is low.
  • the processor 10 can also determine the current wear/removal of the head mounted display device 100 more quickly. The status, thereby controlling the currently running application more quickly, in accordance with the response speed requirement of the application to wear/remove the state change of the head mounted display device 100.
  • the processor 10 first determines the category to which the running application belongs, and then determines the response of the application to the wearable/removed state change of the head mounted display device 100 according to the category to which the application belongs. Speed demand.
  • the processor 10 determines the application to the head mounted display device 100.
  • the response speed requirement for the wear/removal state change is highest, and the processor 10 controls the transmitter 21 to transmit the sensing signal at the first transmission frequency.
  • the processor 10 determines that the application running by the head mounted display device 100 is a second type of application, the processor 10 determines that the application wears/removes a state change to the head mounted display device 100.
  • the response speed requirement is the second highest, and the processor 10 controls the transmitter 21 to transmit a sensing signal at a second transmission frequency.
  • the processor 10 determines that the application running by the head mounted display device 100 is a third type of application, the processor 10 determines that the application wears/removes a state change to the head mounted display device 100.
  • the response speed requirement is the lowest, and the processor 10 controls the transmitter 21 to transmit a sensing signal at a third transmission frequency.
  • the first transmission frequency is greater than the second transmission frequency, and the second transmission frequency is greater than the third transmission frequency.
  • the first type of application is a video play application
  • the second type of application is an audio play application
  • the third type of application is an application other than the first type and the second type of application such as a text editing application.
  • the response time allowed by the video playback application needs to be relatively short, otherwise a lot of content will be missed. Therefore, it is necessary to detect whether the user removes the head mounted display device 100 and pauses.
  • the text editing application allows for a longer response time, and the user does not need to operate the text editing application as soon as the user removes or wears the head mounted display device 100.
  • the processor 10 determines the result according to the reception result of the receiver 22.
  • the wearable/removable state of the head mounted display device 100 includes: the processor 10 compares the intensity of the sensing signal received by the receiver 22 with a wear/receive discrimination threshold, and compares the receiver Determining, when the intensity of the received sensing signal is greater than or equal to the wear/removal discrimination threshold, determining that the head mounted display device 100 is in a worn state, that is, a state in which a person is worn, and comparing the received by the receiver 22.
  • the intensity of the sensing signal is less than the wear/removal discrimination threshold, it is determined that the head mounted display device 100 is in a removed state, that is, a state in which no one is worn.
  • the head mounted display device 100 further includes a display device 30 and an earphone device 40.
  • the sensor 20 is disposed inside the display device 30 of the head mounted display device 100, and the transmitter 21 and the receiver 22 of the sensor 20 are disposed side by side.
  • the transmitter 21 is configured to transmit a sensing signal in a direction opposite to the inside of the head mounted display device 100, and the receiver 22 receives the sensor reflected by the wearer when the person wears the head mounted display device 100 signal.
  • the wear/removal discrimination threshold may be set in advance according to the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100. For example, the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100 may be detected multiple times, and the minimum value thereof may be taken as the wear/removal discrimination threshold, or a ratio may be taken. A value having a slightly smaller minimum value is used as the wear/removal discrimination threshold.
  • the intensity of the sensing signal received by the receiver 22 is greater than the wear/removal discrimination threshold, and thus, by receiving The intensity of the sensing signal received by the device 22 is compared with the wear/removal discrimination threshold to determine the wearable/removable state of the head mounted display device 100.
  • the processor 10 is further configured to compare the intensity of the sensing signal received by the receiver 22 with a standard reflected signal strength value after the wearer wears the head mounted display device 100, and The intensity of the sensing signal emitted by the transmitter 21 is adjusted based on the comparison. In some embodiments, the processor 10 controls to decrease the intensity of the sensing signal emitted by the transmitter 21 when the intensity of the sensing signal received by the receiver 22 is greater than the standard reflected signal strength value. The processor 10 controls to increase the intensity of the sensing signal emitted by the transmitter 21 until the sensing received by the receiver 22 when the intensity of the sensing signal received by the receiver 22 is less than the standard reflected signal strength value. Signal The intensity is equal to the standard reflected signal strength value.
  • the standard reflected signal strength value is a minimum value required for the strength of the sensing signal received by the receiver 22, that is, the intensity of the sensing signal received by the receiver 22 needs to be greater than or equal to
  • the standard reflected signal strength value compares the intensity of the sensing signal with the wear/removal discrimination threshold to accurately determine the wearable/removable state of the head mounted display device 100.
  • the intensity of the sensing signals emitted by the transmitter 21 is the same, the intensity of the sensing signals received by the receiver 22 is different due to different face shapes, skin colors, and wearing habits/postures of the wearer, thereby For some wearers, the intensity of the sensing signal emitted by the transmitter 21 is insufficient. For some wearers, the intensity of the sensing signal emitted by the transmitter 21 is much higher, resulting in waste of electrical energy.
  • the intensity of the sensing signal received by the receiver 22 is compared with the standard reflected signal strength value, and the intensity of the sensing signal emitted by the transmitter 21 is adjusted according to the comparison result until the The intensity of the sensing signal received by the receiver 22 is equal to the standard reflected signal strength value, so that when different people wear it, the demand can be met and the waste of electric energy can be avoided.
  • the processor 10 is the intensity of the sensing signal received by the receiver 22 and a standard reflected signal strength value when the wearer wears the head mounted display device 100 in response to a calibration operation.
  • the calibration operation may be an operation of selecting a specific menu option of the head mounted display device 100 or an operation of triggering a specific button. For example, after wearing the head mounted display device 100, the wearer can select or trigger a specific button through a specific menu option, thereby causing the processor 10 to measure the intensity of the sensor signal received by the receiver 22. Comparing with a standard reflected signal strength value, and adjusting the intensity of the sensing signal emitted by the transmitter 21 according to the comparison result until the intensity of the sensing signal received by the receiver 22 is equal to the standard reflected signal intensity value until.
  • the sensor 20 may be an infrared sensor, a light sensor, an ultrasonic sensor, or the like, and the sensing signal may be an infrared signal, an optical signal, an ultrasonic signal, or the like.
  • the transmitter 21 and the receiver 22 may be infrared emitters and infrared receivers, light emitters and light receivers, ultrasonic transmitters and ultrasonic receivers, and the like.
  • the processor 10 can be a microcontroller, a microprocessor, a microcontroller, a digital signal processor, or the like.
  • the head mounted display device 100 can be a head mounted device such as a smart helmet or smart glasses.
  • FIG. 3 is a flowchart of a method for adjusting a power of a sensor according to an embodiment of the present invention. Said The method is applied to the aforementioned head mounted display device 100, and the order of execution is not limited to the order shown in FIG. The method includes the steps of:
  • An application currently running by the head mounted display device 100 is determined (S301).
  • the transmission frequency of the transmitter 21 is adjusted according to an application currently running by the head mounted display device 100 (S303). Specifically, in some embodiments, the processor 10 adjusts the transmission frequency of the transmitter 21 according to the currently running application to wear/remove the response speed requirement of the state change of the head mounted display device 100. In some embodiments, the processor 10 determines a category to which the running application belongs, and then determines a response speed of the application to wear/remove state changes of the head mounted display device 100 according to the category to which the application belongs. The demand, and then the transmission frequency of the transmitter 21 is adjusted according to the determined response speed demand.
  • step S303 specifically includes:
  • a response speed requirement for the currently running application to wear/remove the state change of the head mounted display device 100 is determined (S3031).
  • step S303 specifically includes:
  • step S3035 Determine the category to which the running application belongs (S3035).
  • step S3036 is performed, and when it is determined that the application running by the head mounted display device 100 is the second type of application, When it is determined that the application running by the head mounted display device 100 is the third type of application, step S3040 is performed.
  • the transmitter 21 is controlled to transmit a sensing signal at a first transmission frequency (S3037).
  • the transmitter 21 is controlled to transmit a sensing signal at a second transmission frequency (S3039).
  • the transmitter 21 is controlled to transmit a sensing signal at a third transmission frequency (S3041).
  • the first type of application is a video play application
  • the second type of application is an audio play application.
  • the third type of application is an application other than the first type and the second type of application such as a text editing application.
  • the first transmission frequency is greater than the second transmission frequency
  • the second transmission frequency is greater than the third transmission frequency.
  • FIG. 6 is a flowchart of a method for adjusting a power of a sensor in a second embodiment of the present invention.
  • the method is applied to the aforementioned head mounted display device 100.
  • the steps of the method in the second embodiment are more, and the order of execution is not limited to the sequence shown in FIG. 6, and the method includes the steps of:
  • An application currently running by the head mounted display device 100 is determined (S601).
  • the transmission frequency of the transmitter 21 is adjusted according to an application currently running by the head mounted display device 100 (S603).
  • the wear/removal state of the head mounted display device 100 is judged based on the reception result of the reflected sensing signal received by the receiver 22 (S605).
  • the step S605 includes comparing the intensity of the sensing signal received by the receiver 22 with a wear/removal discrimination threshold to compare the strength of the sensing signal received by the receiver 22.
  • the wearable/removable discrimination threshold is greater than or equal to, the head mounted display device 100 is determined to be in a worn state, and the intensity of the sensing signal received by the receiver 22 is compared to the wear/receive discrimination threshold. At this time, it is determined that the head mounted display device 100 is in the removed state.
  • the sensor power adjustment method further includes the steps of:
  • the intensity of the sensing signal received by the receiver 22 is compared with a standard reflected signal strength value, and the sensing signal emitted by the transmitter 21 is adjusted according to the comparison result.
  • Strength (S607).
  • the step S607 includes: the processor 10 controls to reduce the intensity of the sensing signal emitted by the transmitter 21 when the intensity of the sensing signal received by the receiver 22 is greater than the standard reflected signal strength value.
  • the processor 10 controls to increase the transmitter when the intensity of the sensing signal received by the receiver 22 is less than the standard reflected signal strength value.
  • the intensity of the transmitted sensor signal is 21 until the intensity of the sensed signal received by the receiver 22 is equal to the standard reflected signal strength value.
  • the sensor power adjustment method further includes the steps of:
  • the wear/removal discrimination threshold is set in advance according to the intensity of the sensing signal received by the receiver 22 after the plurality of wearers wear the head mounted display device 100. For example, the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100 is detected multiple times, and the minimum value thereof is taken as the wear/removal discrimination threshold.
  • the head mounted display device 100 of the present invention can adjust the transmission frequency of the transmitter 21 according to the running application to ensure normal operation while reducing power consumption. Further, the head mounted display device 100 of the present invention can also The emission intensity of the transmitter 21 is adjusted such that it is possible to discriminate whether or not a person is wearing while being able to further reduce power consumption as much as possible.

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  • Theoretical Computer Science (AREA)
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Abstract

Provided is a head-mountable display device (100), comprising a processor (10) and a sensor (20); the sensor (20) comprises a transmitter (21) and a receiver (22); the transmitter (21) is used for sending a sensing signal at a preset transmission frequency, and the receiver (22) is used for receiving the sensing signal reflected back; the processor (10) is used for adjusting the transmission frequency of the transmitter (21) according to an application currently being run by the head-mountable display device (100). In the head-mountable display device (100) and sensor (20) power conditioning method, it is possible to adjust the transmission frequency of the transmitter (21) according to a requirement, of a currently running application, of response speed with regard to a change in the wearing/removal state of the head-mountable display device (100), such that the transmission frequency of the transmitter (21) is reduced so that it satisfies the requirement, reducing energy consumption.

Description

头戴式显示设备及其传感器功率调节方法Head mounted display device and sensor power adjustment method thereof 技术领域Technical field
本发明涉及一种显示设备，尤其涉及一种头戴式显示设备及所述头戴式显示设备的传感器的功率调节方法。The present invention relates to a display device, and more particularly to a head mounted display device and a power adjustment method of the sensor of the head mounted display device.
背景技术Background technique
头戴式显示设备由于便捷性，且能实现立体显示及立体声等效果，已经逐渐被人们所喜爱。近年来，随着虚拟现实(virtual reality，VR)技术的出现，头戴式显示设备作为VR技术的硬件支持设备，更加应用广泛了。目前，头戴式显示设备往往需要侦测用户是否穿戴或取下头戴式显示设备来执行一些相应的操作。通常的侦测方式为通过传感器等传感器来侦测头戴式显示设备中是否有人体头部等来判断用户是否穿戴或取下头戴式显示设备。具体的，传感器每间隔预定时间，即以特定的频率发送传感信号，并根据反射回来的传感信号判断是否有人穿戴所述头戴式显示设备。由于所述传感器发射传感信号是有间隔的，目前为了使得所述侦测用户是否穿戴或取下头戴式显示设备更加准确和及时，通常将传感器的发射频率设置的比较高。然而，发射频率设置的太高也大大提高了功率的损耗。Head-mounted display devices have gradually become popular because of their convenience and ability to achieve stereoscopic display and stereo sound. In recent years, with the advent of virtual reality (VR) technology, head-mounted display devices have become more widely used as hardware support devices for VR technology. Currently, head-mounted display devices often need to detect whether a user wears or removes a head-mounted display device to perform some corresponding operations. The usual detection method is to detect whether there is a human head or the like in the head-mounted display device by using a sensor such as a sensor to determine whether the user wears or removes the head-mounted display device. Specifically, the sensor transmits the sensing signal at a predetermined frequency every predetermined time interval, and determines whether the person wears the head mounted display device according to the reflected sensing signal. Since the sensor transmits the sensing signals in an interval, in order to make the detecting user wear or remove the head mounted display device more accurate and timely, the transmitting frequency of the sensor is generally set relatively high. However, setting the transmission frequency too high also greatly increases the power loss.
发明内容Summary of the invention
本发明实施例公开一种头戴式显示设备及其传感器功率调节方法，能够满足头戴式显示设备侦测是否被穿戴或取下的需要，且能有效地降低能耗。The embodiment of the invention discloses a head-mounted display device and a sensor power adjustment method thereof, which can meet the requirement that the head-mounted display device detects whether it is worn or removed, and can effectively reduce energy consumption.
本发明实施例公开的头戴式显示设备，包括处理器以及传感器，其特征在于，所述传感器包括发射器及接收器，所述发射器用于以预设的发射频率发送传感信号，所述接收器用于接收反射回来的传感信号；所述处理器用于根据头戴式显示设备当前运行的应用程序调节所述发射器的发射频率。The head-mounted display device disclosed in the embodiment of the present invention includes a processor and a sensor, wherein the sensor includes a transmitter and a receiver, and the transmitter is configured to send a sensing signal at a preset transmission frequency, The receiver is configured to receive the reflected sensor signal; the processor is configured to adjust a transmit frequency of the transmitter according to an application currently running by the head mounted display device.
本发明实施例公开的传感器功率调节方法，应用于一头戴式显示设备中，所述头戴式显示设备包括发射器及接收器，所述方法包括步骤：确定头戴式显 示设备当前运行的应用程序；以及根据头戴式显示设备当前运行的应用程序调节所述发射器的发射频率。The sensor power adjustment method disclosed in the embodiment of the present invention is applied to a head mounted display device, the head mounted display device includes a transmitter and a receiver, and the method includes the steps of: determining a head mounted display An application that is currently running on the device; and adjusts a transmit frequency of the transmitter based on an application currently running by the head mounted display device.
本发明的头戴式显示设备及其传感器功率调节方法，能够根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求对所述发射器的发射频率进行调节，使得发射器的发射频率能在满足需求的前提下会降低，节省了能耗。The head-mounted display device of the present invention and the sensor power adjustment method thereof are capable of adjusting the transmission frequency of the transmitter according to the response speed requirement of the wearable/removed state change of the head mounted display device according to the currently running application program, so that The transmitter's transmit frequency can be reduced to meet the demand, saving energy.
附图说明DRAWINGS
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.
图1为本发明一实施例中的头戴式显示设备的结构框图。1 is a block diagram showing the structure of a head mounted display device in accordance with an embodiment of the present invention.
图2为本发明一实施例中的头戴式显示设备的示意图。2 is a schematic diagram of a head mounted display device in accordance with an embodiment of the present invention.
图3为本发明一实施例中的传感器功率调节方法的流程图。3 is a flow chart of a sensor power adjustment method in accordance with an embodiment of the present invention.
图4为图3中步骤S303在一实施例中的子流程图。Figure 4 is a sub-flow diagram of an embodiment of step S303 of Figure 3.
图5为图3中步骤S303在另一实施例中的子流程图。Figure 5 is a sub-flow diagram of step S303 of Figure 3 in another embodiment.
图6为本发明另一实施例中的传感器功率调节方法的流程图。FIG. 6 is a flowchart of a method for adjusting a power of a sensor according to another embodiment of the present invention.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
请参阅图1，为本发明一实施例中的头戴式显示设备100的结构框图。如图1所示，所述头戴式显示设备100包括处理器10以及传感器20。Please refer to FIG. 1 , which is a structural block diagram of a head mounted display device 100 according to an embodiment of the invention. As shown in FIG. 1, the head mounted display device 100 includes a processor 10 and a sensor 20.
如图1所示，所述传感器20包括发射器21及接收器22，所述发射器21 用于以预设发射频率发送传感信号。所述接收器22用于接收反射回来的传感信号。所述处理器10用于根据所述接收器22的接收结果判断所述头戴式显示设备100的穿戴/取下状态，即判断所述头戴式显示设备100处于穿戴还是取下状态。所述处理器10并根据头戴式显示设备100当前运行的应用程序调节所述发射器21的发射频率。As shown in FIG. 1, the sensor 20 includes a transmitter 21 and a receiver 22, and the transmitter 21 Used to transmit a sensing signal at a preset transmission frequency. The receiver 22 is configured to receive the reflected sensing signal. The processor 10 is configured to determine, according to the receiving result of the receiver 22, the wearable/removable state of the head mounted display device 100, that is, whether the head mounted display device 100 is in a worn or removed state. The processor 10 adjusts the transmit frequency of the transmitter 21 in accordance with an application currently running by the head mounted display device 100.
在一些实施例中，所述处理器10根据当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求调节所述发射器21的发射频率。具体的，所述处理器10先确定当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求，再根据所确定的响应速度需求调节所述发射器21的发射频率。In some embodiments, the processor 10 adjusts the transmit frequency of the transmitter 21 based on the response speed requirement of the wearable/removed state change of the head mounted display device 100 in accordance with the currently running application. Specifically, the processor 10 first determines a response speed requirement of the currently running application to wear/remove the state change of the head mounted display device 100, and then adjusts the transmission frequency of the transmitter 21 according to the determined response speed requirement. .
进一步的，所述处理器10在当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越高时，将所述发射器21的发射频率调节得越高。显然，所述处理器10在当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越低时，将所述发射器21的发射频率调节得越低。在一些实施例中，当应用程序对头戴式显示设备100穿戴/取下状态改变的响应时间允许小于一第一预设时间(例如5秒)时，所述处理器10确认所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求高，当应用程序对头戴式显示设备100穿戴/取下状态改变的响应时间允许大于第二预设时间(例如10秒)时，所述处理器10确认所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为低。显然，当应用程序对头戴式显示设备100穿戴/取下状态改变的响应时间允许越长，则所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越低，当应用程序对头戴式显示设备100穿戴/取下状态改变的响应时间允许越短，则所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越高。Further, the processor 10 adjusts the transmission frequency of the transmitter 21 to be higher when the response speed requirement of the currently running application to wear/remove the state change of the head mounted display device 100 is higher. Obviously, the lower the response speed requirement of the processor 10 when the currently running application is wearing/removing the state change of the head mounted display device 100, the lower the transmission frequency of the transmitter 21 is adjusted. In some embodiments, the processor 10 confirms the application when the response time of the application to wear/remove the state change of the head mounted display device 100 is allowed to be less than a first predetermined time (eg, 5 seconds). The response speed requirement for wearing/removing the state change of the head mounted display device 100 is high, and the response time of the application to wear/remove the state change of the head mounted display device 100 is allowed to be greater than the second preset time (for example, 10 seconds). At this time, the processor 10 confirms that the response speed requirement of the application to wear/remove the state change of the head mounted display device 100 is low. Obviously, the longer the response time allowed by the application to wear/remove the state change of the head mounted display device 100, the lower the response speed requirement of the application to wear/remove the state change of the head mounted display device 100, The shorter the response time allowed by the application to wear/remove the state change of the head mounted display device 100, the higher the response speed requirement of the application to wear/remove the state change of the head mounted display device 100.
从而，本发明中，在当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越高时，将所述发射器21的发射频率调节得越高，从而发射器21发射传感信号的间隔会越短，头戴式显示设备100穿戴/取下状态改变时，发射器21能在更短的时间内发出传感信号，接收器22也能更快地有接收结果。处理器10也能更快地判断头戴式显示设备100当前的穿戴/取下 状态，从而更快地对当前运行的应用程序进行控制，符合所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求。Thus, in the present invention, the higher the response speed of the transmitter 21 is, the higher the response speed of the currently installed application is to the wearable/removed state change of the head mounted display device 100. The shorter the interval at which the sensor signals are transmitted, the shorter the time the head mounted display device 100 is worn/removed, the transmitter 21 can send a sensing signal in a shorter time, and the receiver 22 can receive more quickly. result. The processor 10 can also determine the current wear/removal of the head mounted display device 100 more quickly. The status, thereby controlling the currently running application more quickly, in accordance with the response speed requirement of the application to wear/remove the state change of the head mounted display device 100.
在当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越低时，在能满足应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求的前提下，将所述发射器21的发射频率调节得越低，从而发射器21的发射功耗会降低，节省了能耗。The lower the response speed requirement of the currently running application to wear/remove the state change of the head mounted display device 100, the need to meet the response speed requirement of the application to wear/remove the state change of the head mounted display device 100. Under the premise, the lower the transmission frequency of the transmitter 21 is adjusted, so that the transmission power consumption of the transmitter 21 is reduced, and energy consumption is saved.
在一些实施例中，所述处理器10先确定运行的应用程序所属的类别，然后根据所述应用程序所属的类别确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求。In some embodiments, the processor 10 first determines the category to which the running application belongs, and then determines the response of the application to the wearable/removed state change of the head mounted display device 100 according to the category to which the application belongs. Speed demand.
在一些实施例中，当所述处理器10确定所述头戴式显示设备100运行的应用程序为第一类应用程序时，所述处理器10确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为最高，所述处理器10控制所述发射器21以第一发射频率发射传感信号。当所述处理器10确定所述头戴式显示设备100运行的应用程序为第二类应用程序时，所述处理器10确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为次高，所述处理器10控制所述发射器21以第二发射频率发射传感信号。当所述处理器10确定所述头戴式显示设备100运行的应用程序为第三类应用程序时，所述处理器10确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为最低，所述处理器10控制所述发射器21以第三发射频率发射传感信号。所述第一发射频率大于所述第二发射频率，所述第二发射频率大于所述第三发射频率。In some embodiments, when the processor 10 determines that the application running by the head mounted display device 100 is a first type of application, the processor 10 determines the application to the head mounted display device 100. The response speed requirement for the wear/removal state change is highest, and the processor 10 controls the transmitter 21 to transmit the sensing signal at the first transmission frequency. When the processor 10 determines that the application running by the head mounted display device 100 is a second type of application, the processor 10 determines that the application wears/removes a state change to the head mounted display device 100. The response speed requirement is the second highest, and the processor 10 controls the transmitter 21 to transmit a sensing signal at a second transmission frequency. When the processor 10 determines that the application running by the head mounted display device 100 is a third type of application, the processor 10 determines that the application wears/removes a state change to the head mounted display device 100. The response speed requirement is the lowest, and the processor 10 controls the transmitter 21 to transmit a sensing signal at a third transmission frequency. The first transmission frequency is greater than the second transmission frequency, and the second transmission frequency is greater than the third transmission frequency.
其中，所述第一类应用程序为视频播放类应用程序，所述第二类应用程序为音频播放类应用程序。所述第三类应用程序为文字编辑应用程序等除了第一类及第二类应用程序之外的应用程序。显然，视频播放类应用程序允许的响应时间需要为比较短，否则将会漏掉不少内容，因此，需要更快地侦测用户是否取下头戴式显示设备100而进行暂停等操作。文字编辑应用程序则允许的响应时间比较长，用户取下或穿戴头戴式显示设备100时，无需尽快对文字编辑应用程序进行操作。The first type of application is a video play application, and the second type of application is an audio play application. The third type of application is an application other than the first type and the second type of application such as a text editing application. Obviously, the response time allowed by the video playback application needs to be relatively short, otherwise a lot of content will be missed. Therefore, it is necessary to detect whether the user removes the head mounted display device 100 and pauses. The text editing application allows for a longer response time, and the user does not need to operate the text editing application as soon as the user removes or wears the head mounted display device 100.
在一些实施例中，所述处理器10根据所述接收器22的接收结果判断所述 头戴式显示设备100的穿戴/取下状态，包括：所述处理器10将所述接收器22接收的传感信号的强度与一穿戴/取下区分阈值进行比较，在比较所述接收器22接收的传感信号的强度大于或等于所述穿戴/取下区分阈值时，确定所述头戴式显示设备100处于穿戴状态，即有人穿戴的状态，以及在比较所述接收器22接收的传感信号的强度小于所述穿戴/取下区分阈值时，确定所述头戴式显示设备100处于取下状态，即无人穿戴的状态。In some embodiments, the processor 10 determines the result according to the reception result of the receiver 22. The wearable/removable state of the head mounted display device 100 includes: the processor 10 compares the intensity of the sensing signal received by the receiver 22 with a wear/receive discrimination threshold, and compares the receiver Determining, when the intensity of the received sensing signal is greater than or equal to the wear/removal discrimination threshold, determining that the head mounted display device 100 is in a worn state, that is, a state in which a person is worn, and comparing the received by the receiver 22. When the intensity of the sensing signal is less than the wear/removal discrimination threshold, it is determined that the head mounted display device 100 is in a removed state, that is, a state in which no one is worn.
如图2所示，为头戴式显示设备100的整体示意图。如图2所示，所述头戴式显示设备100还包括显示装置30及耳机装置40。在一些实施例中，所述传感器20为设置于所述头戴式显示设备100的显示装置30的内侧，所述传感器20的发射器21及接收器22并排靠近设置。所述发射器21用于向对着头戴式显示设备100内侧的方向发射传感信号，所述接收器22在有人穿戴所述头戴式显示设备100时，接收穿戴者反射回来的传感信号。As shown in FIG. 2, it is an overall schematic diagram of the head mounted display device 100. As shown in FIG. 2, the head mounted display device 100 further includes a display device 30 and an earphone device 40. In some embodiments, the sensor 20 is disposed inside the display device 30 of the head mounted display device 100, and the transmitter 21 and the receiver 22 of the sensor 20 are disposed side by side. The transmitter 21 is configured to transmit a sensing signal in a direction opposite to the inside of the head mounted display device 100, and the receiver 22 receives the sensor reflected by the wearer when the person wears the head mounted display device 100 signal.
由于接收器22发射传感信号后，发射的传感信号会遇到前方的阻挡物而反射回来，接收器22接收的传感信号的强度会根据反射距离的增大而衰减。所述穿戴/取下区分阈值可为预先根据穿戴者穿戴所述头戴式显示设备100后接收器22接收的传感信号的强度进行设置。例如，可多次检测不同穿戴者穿戴所述头戴式显示设备100后接收器22接收的传感信号的强度，并取其中的最小值作为所述穿戴/取下区分阈值，或者取一比最小值稍微小的值作为所述穿戴/取下区分阈值。从而，在一般情况下，只有穿戴者穿戴所述头戴式显示设备100时，所述接收器22接收的传感信号的强度才会大于所述穿戴/取下区分阈值，从而，通过将接收器22接收的传感信号的强度与所述穿戴/取下区分阈值进行比较，可判断出头戴式显示设备100的穿戴/取下状态。Since the receiver 22 emits the sensing signal, the transmitted sensing signal will be reflected back by the front obstacle, and the intensity of the sensing signal received by the receiver 22 will be attenuated according to the increase of the reflection distance. The wear/removal discrimination threshold may be set in advance according to the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100. For example, the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100 may be detected multiple times, and the minimum value thereof may be taken as the wear/removal discrimination threshold, or a ratio may be taken. A value having a slightly smaller minimum value is used as the wear/removal discrimination threshold. Therefore, in general, when the wearer wears the head mounted display device 100, the intensity of the sensing signal received by the receiver 22 is greater than the wear/removal discrimination threshold, and thus, by receiving The intensity of the sensing signal received by the device 22 is compared with the wear/removal discrimination threshold to determine the wearable/removable state of the head mounted display device 100.
在一些实施例中，所述处理器10还用于在穿戴者穿戴头戴式显示设备100后，将所述接收器22接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器21发射的传感信号的强度。在一些实施例中，所述处理器10在接收器22接收的传感信号的强度大于所述标准反射信号强度值时，控制调低所述发射器21发射的传感信号的强度，所述处理器10在接收器22接收的传感信号的强度小于所述标准反射信号强度值时，控制调高所述发射器21发射的传感信号的强度，直到所述接收器22接收的传感信号 的强度等于所述标准反射信号强度值为止。In some embodiments, the processor 10 is further configured to compare the intensity of the sensing signal received by the receiver 22 with a standard reflected signal strength value after the wearer wears the head mounted display device 100, and The intensity of the sensing signal emitted by the transmitter 21 is adjusted based on the comparison. In some embodiments, the processor 10 controls to decrease the intensity of the sensing signal emitted by the transmitter 21 when the intensity of the sensing signal received by the receiver 22 is greater than the standard reflected signal strength value. The processor 10 controls to increase the intensity of the sensing signal emitted by the transmitter 21 until the sensing received by the receiver 22 when the intensity of the sensing signal received by the receiver 22 is less than the standard reflected signal strength value. Signal The intensity is equal to the standard reflected signal strength value.
其中，在一些实施例中，所述标准反射信号强度值为接收器22接收到的传感信号的强度所需的最小值，即，接收器22接收到的传感信号的强度需要大于或等于所述标准反射信号强度值，将传感信号的强度与所述穿戴/取下区分阈值进行比较才能准确地判断出头戴式显示设备100的穿戴/取下状态。In some embodiments, the standard reflected signal strength value is a minimum value required for the strength of the sensing signal received by the receiver 22, that is, the intensity of the sensing signal received by the receiver 22 needs to be greater than or equal to The standard reflected signal strength value compares the intensity of the sensing signal with the wear/removal discrimination threshold to accurately determine the wearable/removable state of the head mounted display device 100.
从而，由于不同穿戴者的脸型、肤色、佩戴习惯/姿势的不同，即使发射器21发射的传感信号的强度相同，也会导致接收器22接收到的传感信号的强度不同，从而，对于有些穿戴者来说，该发射器21发射的传感信号的强度是不够，对于有些穿戴者来说，该发射器21发射的传感信号的强度却高了不少，造成了电能的浪费。因此，本申请中，还通过将所述接收器22接收的传感信号的强度与标准反射信号强度值进行比较，并根据比较结果调节所述发射器21发射的传感信号的强度，直到所述接收器22接收的传感信号的强度与标准反射信号强度值相等，使得不同的人穿戴时，都能满足需求且避免电能的浪费。Therefore, even if the intensity of the sensing signals emitted by the transmitter 21 is the same, the intensity of the sensing signals received by the receiver 22 is different due to different face shapes, skin colors, and wearing habits/postures of the wearer, thereby For some wearers, the intensity of the sensing signal emitted by the transmitter 21 is insufficient. For some wearers, the intensity of the sensing signal emitted by the transmitter 21 is much higher, resulting in waste of electrical energy. Therefore, in the present application, the intensity of the sensing signal received by the receiver 22 is compared with the standard reflected signal strength value, and the intensity of the sensing signal emitted by the transmitter 21 is adjusted according to the comparison result until the The intensity of the sensing signal received by the receiver 22 is equal to the standard reflected signal strength value, so that when different people wear it, the demand can be met and the waste of electric energy can be avoided.
在一些实施例中，所述处理器10为在穿戴者穿戴头戴式显示设备100后，响应一校准操作时，将所述接收器22接收的传感信号的强度与一标准反射信号强度值进行比较。其中，所述校准操作可为对头戴式显示设备100的特定菜单选项进行选择的操作或对特定按钮进行触发的操作。例如，穿戴者在穿戴所述头戴式显示设备100后，可通过特定菜单选项进行选择或对特定按钮进行触发，从而使得所述处理器10将所述接收器22接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器21发射的传感信号的强度，直到所述接收器22接收的传感信号的强度与所述标准反射信号强度值相等为止。In some embodiments, the processor 10 is the intensity of the sensing signal received by the receiver 22 and a standard reflected signal strength value when the wearer wears the head mounted display device 100 in response to a calibration operation. Compare. The calibration operation may be an operation of selecting a specific menu option of the head mounted display device 100 or an operation of triggering a specific button. For example, after wearing the head mounted display device 100, the wearer can select or trigger a specific button through a specific menu option, thereby causing the processor 10 to measure the intensity of the sensor signal received by the receiver 22. Comparing with a standard reflected signal strength value, and adjusting the intensity of the sensing signal emitted by the transmitter 21 according to the comparison result until the intensity of the sensing signal received by the receiver 22 is equal to the standard reflected signal intensity value until.
其中，所述传感器20可为红外传感器、光传感器、超声波传感器等，所述传感信号相应可为红外信号、光信号、超声波信号等。所述发射器21及接收器22相应可为红外发射器及红外接收器、光发射器及光接收器、超声波发射器及超声波接收器等。The sensor 20 may be an infrared sensor, a light sensor, an ultrasonic sensor, or the like, and the sensing signal may be an infrared signal, an optical signal, an ultrasonic signal, or the like. The transmitter 21 and the receiver 22 may be infrared emitters and infrared receivers, light emitters and light receivers, ultrasonic transmitters and ultrasonic receivers, and the like.
所述处理器10可为微控制器、微处理器、单片机、数字信号处理器等。The processor 10 can be a microcontroller, a microprocessor, a microcontroller, a digital signal processor, or the like.
所述头戴式显示设备100可为智能头盔，智能眼镜等头戴式设备。The head mounted display device 100 can be a head mounted device such as a smart helmet or smart glasses.
请参阅图3，为本发明一实施例中的传感器功率调节方法的流程图。所述 方法应用于前述的头戴式显示设备100中，执行顺序并不限于图3所示的顺序。所述方法包括步骤：Please refer to FIG. 3, which is a flowchart of a method for adjusting a power of a sensor according to an embodiment of the present invention. Said The method is applied to the aforementioned head mounted display device 100, and the order of execution is not limited to the order shown in FIG. The method includes the steps of:
确定头戴式显示设备100当前运行的应用程序(S301)。An application currently running by the head mounted display device 100 is determined (S301).
根据头戴式显示设备100当前运行的应用程序调节所述发射器21的发射频率(S303)。具体的，在一些实施例中，所述处理器10根据当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求，调节所述发射器21的发射频率。在一些实施例中，所述处理器10确定运行的应用程序所属的类别，然后根据所述应用程序所属的类别确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求，再根据所确定的响应速度需求调节所述发射器21的发射频率。The transmission frequency of the transmitter 21 is adjusted according to an application currently running by the head mounted display device 100 (S303). Specifically, in some embodiments, the processor 10 adjusts the transmission frequency of the transmitter 21 according to the currently running application to wear/remove the response speed requirement of the state change of the head mounted display device 100. In some embodiments, the processor 10 determines a category to which the running application belongs, and then determines a response speed of the application to wear/remove state changes of the head mounted display device 100 according to the category to which the application belongs. The demand, and then the transmission frequency of the transmitter 21 is adjusted according to the determined response speed demand.
请参阅图4，为步骤S303在一实施例中的子流程图。如图4所示，所述步骤S303具体包括：Please refer to FIG. 4, which is a sub-flowchart in step S303 in an embodiment. As shown in FIG. 4, the step S303 specifically includes:
确定当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求(S3031)。A response speed requirement for the currently running application to wear/remove the state change of the head mounted display device 100 is determined (S3031).
在所述处理器10在当前运行的应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求越高时，将所述发射器21的发射频率调节得越高(S3032)。The higher the transmission speed of the transmitter 21 is adjusted, the higher the response speed requirement of the processor 10 when the currently running application wears/removes the state change of the head mounted display device 100 (S3032).
请参阅图5，为步骤S303在另一实施例中的子流程图。如图5所示，在另一实施例中，所述步骤S303具体包括：Please refer to FIG. 5, which is a sub-flowchart in step S303 in another embodiment. As shown in FIG. 5, in another embodiment, the step S303 specifically includes:
确定运行的应用程序所属的类别(S3035)。其中，当确定所述头戴式显示设备100运行的应用程序为第一类应用程序时，执行步骤S3036，当确定所述头戴式显示设备100运行的应用程序为第二类应用程序时，执行步骤S3038，确定所述头戴式显示设备100运行的应用程序为第三类应用程序时，执行步骤S3040。Determine the category to which the running application belongs (S3035). When it is determined that the application running by the head mounted display device 100 is the first type of application, step S3036 is performed, and when it is determined that the application running by the head mounted display device 100 is the second type of application, When it is determined that the application running by the head mounted display device 100 is the third type of application, step S3040 is performed.
确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为最高(S3036)。It is determined that the application has the highest response speed requirement for the wearable/removed state change of the head mounted display device 100 (S3036).
控制所述发射器21以第一发射频率发射传感信号(S3037)。The transmitter 21 is controlled to transmit a sensing signal at a first transmission frequency (S3037).
确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为次高(S3038)。 It is determined that the response speed requirement of the application for wearing/removing the state change of the head mounted display device 100 is the second highest (S3038).
控制所述发射器21以第二发射频率发射传感信号(S3039)。The transmitter 21 is controlled to transmit a sensing signal at a second transmission frequency (S3039).
确定所述应用程序对头戴式显示设备100穿戴/取下状态改变的响应速度需求为最低(S3040)。It is determined that the application has the lowest response speed requirement for the wearable/removed state change of the head mounted display device 100 (S3040).
控制所述发射器21以第三发射频率发射传感信号(S3041)。其中，所述第一类应用程序为视频播放类应用程序，所述第二类应用程序为音频播放类应用程序。所述第三类应用程序为文字编辑应用程序等除了第一类及第二类应用程序之外的应用程序。所述第一发射频率大于所述第二发射频率，所述第二发射频率大于所述第三发射频率。The transmitter 21 is controlled to transmit a sensing signal at a third transmission frequency (S3041). The first type of application is a video play application, and the second type of application is an audio play application. The third type of application is an application other than the first type and the second type of application such as a text editing application. The first transmission frequency is greater than the second transmission frequency, and the second transmission frequency is greater than the third transmission frequency.
请参阅图6，为本发明第二实施例中的传感器功率调节方法的流程图。所述方法应用于前述的头戴式显示设备100中。相比第一实施例，所述第二实施例中的方法的步骤更多，且执行顺序并不限于图6所示的顺序，所述方法包括步骤：Please refer to FIG. 6, which is a flowchart of a method for adjusting a power of a sensor in a second embodiment of the present invention. The method is applied to the aforementioned head mounted display device 100. Compared with the first embodiment, the steps of the method in the second embodiment are more, and the order of execution is not limited to the sequence shown in FIG. 6, and the method includes the steps of:
确定头戴式显示设备100当前运行的应用程序(S601)。An application currently running by the head mounted display device 100 is determined (S601).
根据头戴式显示设备100当前运行的应用程序调节所述发射器21的发射频率(S603)。The transmission frequency of the transmitter 21 is adjusted according to an application currently running by the head mounted display device 100 (S603).
根据接收器22所接收的反射回来的传感信号的接收结果判断所述头戴式显示设备100的穿戴/取下状态(S605)。在一些实施例中，所述步骤S605包括：将所述接收器22接收的传感信号的强度与一穿戴/取下区分阈值进行比较，在比较所述接收器22接收的传感信号的强度大于或等于所述穿戴/取下区分阈值时，确定所述头戴式显示设备100处于穿戴状态，以及在比较所述接收器22接收的传感信号的强度小于所述穿戴/取下区分阈值时，确定所述头戴式显示设备100处于取下状态。The wear/removal state of the head mounted display device 100 is judged based on the reception result of the reflected sensing signal received by the receiver 22 (S605). In some embodiments, the step S605 includes comparing the intensity of the sensing signal received by the receiver 22 with a wear/removal discrimination threshold to compare the strength of the sensing signal received by the receiver 22. When the wearable/removable discrimination threshold is greater than or equal to, the head mounted display device 100 is determined to be in a worn state, and the intensity of the sensing signal received by the receiver 22 is compared to the wear/receive discrimination threshold. At this time, it is determined that the head mounted display device 100 is in the removed state.
如图6所示，所述传感器功率调节方法还包括步骤：As shown in FIG. 6, the sensor power adjustment method further includes the steps of:
在穿戴者穿戴头戴式显示设备100后，将所述接收器22接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器21发射的传感信号的强度(S607)。具体的，所述步骤S607包括：所述处理器10在接收器22接收的传感信号的强度大于所述标准反射信号强度值时，控制调低所述发射器21发射的传感信号的强度，所述处理器10在接收器22接收的传感信号的强度小于所述标准反射信号强度值时，控制调高所述发射器 21发射的传感信号的强度，直到所述接收器22接收的传感信号的强度等于所述标准反射信号强度值为止。After the wearer wears the head mounted display device 100, the intensity of the sensing signal received by the receiver 22 is compared with a standard reflected signal strength value, and the sensing signal emitted by the transmitter 21 is adjusted according to the comparison result. Strength (S607). Specifically, the step S607 includes: the processor 10 controls to reduce the intensity of the sensing signal emitted by the transmitter 21 when the intensity of the sensing signal received by the receiver 22 is greater than the standard reflected signal strength value. The processor 10 controls to increase the transmitter when the intensity of the sensing signal received by the receiver 22 is less than the standard reflected signal strength value. The intensity of the transmitted sensor signal is 21 until the intensity of the sensed signal received by the receiver 22 is equal to the standard reflected signal strength value.
在一些实施例中，所述传感器功率调节方法还包括步骤：In some embodiments, the sensor power adjustment method further includes the steps of:
预先根据多个穿戴者穿戴所述头戴式显示设备100后接收器22接收的传感信号的强度设置所述穿戴/取下区分阈值。例如，多次检测不同穿戴者穿戴所述头戴式显示设备100后接收器22接收的传感信号的强度，并取其中的最小值作为所述穿戴/取下区分阈值。The wear/removal discrimination threshold is set in advance according to the intensity of the sensing signal received by the receiver 22 after the plurality of wearers wear the head mounted display device 100. For example, the intensity of the sensing signal received by the receiver 22 after the wearer wears the head mounted display device 100 is detected multiple times, and the minimum value thereof is taken as the wear/removal discrimination threshold.
从而，本发明的头戴式显示设备100，可根据运行的应用程序调节发射器21的发射频率，以保证正常工作的同时降低功耗，进一步的，本发明的头戴式显示设备100还可以调节发射器21的发射强度，使得满足鉴别是否有人穿戴的同时又能够最大可能的进一步降低功耗。Therefore, the head mounted display device 100 of the present invention can adjust the transmission frequency of the transmitter 21 according to the running application to ensure normal operation while reducing power consumption. Further, the head mounted display device 100 of the present invention can also The emission intensity of the transmitter 21 is adjusted such that it is possible to discriminate whether or not a person is wearing while being able to further reduce power consumption as much as possible.
以上所述是本发明的优选实施例，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。 The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims (20)

  1. 一种头戴式显示设备，包括处理器以及传感器，其特征在于，所述传感器包括发射器及接收器，所述发射器用于以预设的发射频率发送传感信号，所述接收器用于接收反射回来的传感信号；所述处理器用于根据头戴式显示设备当前运行的应用程序调节所述发射器的发射频率。A head mounted display device comprising a processor and a sensor, wherein the sensor comprises a transmitter and a receiver, the transmitter is configured to transmit a sensing signal at a preset transmission frequency, and the receiver is configured to receive a reflected sensor signal; the processor is configured to adjust a transmit frequency of the transmitter according to an application currently running by the head mounted display device.
  2. 如权利要求1所述的头戴式显示设备，其特征在于，所述处理器根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求调节所述发射器的发射频率。The head-mounted display device of claim 1, wherein the processor adjusts the emission of the transmitter according to a response speed requirement of a wearable/removed state change of the head mounted display device according to a currently running application frequency.
  3. 如权利要求2所述的头戴式显示设备，其特征在于，所述处理器在当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求越高时，将所述发射器的发射频率调节得越高。The head-mounted display device according to claim 2, wherein said processor is said to have a higher response speed requirement for a currently-running application to wear/remove a state change of the head mounted display device The transmitter's transmit frequency is adjusted higher.
  4. 如权利要求2所述的头戴式显示设备，其特征在于，所述处理器先确定运行的应用程序所属的类别，然后根据所述应用程序所属的类别确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求。The head-mounted display device according to claim 2, wherein the processor first determines a category to which the running application belongs, and then determines the application-to-head display according to a category to which the application belongs The device wears/removes the response speed requirement for the status change.
  5. 如权利要求4所述的头戴式显示设备，其特征在于，所述处理器在确定所述头戴式显示设备运行的应用程序为第一类应用程序时，确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为最高，所述处理器控制所述发射器以第一发射频率发射传感信号；所述处理器在确定所述头戴式显示设备运行的应用程序为第二类应用程序时，确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为次高，所述处理器控制所述发射器以第二发射频率发射传感信号；所述处理器在确定所述头戴式显示设备运行的应用程序为第三类应用程序时，所述处理器确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为最低，所述处理器控制所述发射器以第三发射频率发射传感信号；所述第一发射频率大于所述第二发射频率，所述第二发射频率大于所述第三发射频率。The head-mounted display device according to claim 4, wherein the processor determines that the application is on a headset when determining that the application running by the head-mounted display device is a first-class application The display device has the highest response speed requirement for the wear/removal state change, the processor controlling the transmitter to transmit the sensing signal at the first transmission frequency; the processor determining the operation of the head mounted display device When the application is a second type of application, determining that the application has a second highest response speed requirement for the wearable/removable state change of the head mounted display device, the processor controlling the transmitter to transmit at the second transmit frequency Sensing signal; when the processor determines that the application running by the head mounted display device is a third type of application, the processor determines that the application wears/removes a state change to the head mounted display device The response speed requirement is the lowest, the processor controls the transmitter to transmit a sensing signal at a third transmission frequency; the first transmission frequency is greater than the second transmission frequency, The second transmission frequency is greater than the third transmission frequency.
  6. 如权利要求5所述的头戴式显示设备，其特征在于，所述第一类应用程序为视频播放类应用程序，所述第二类应用程序为音频播放类应用程序，所述第三类应用程序为包括文字编辑应用程序在内的除了第一类及第二类应用 程序之外的应用程序。The head-mounted display device according to claim 5, wherein the first type of application is a video playback application, the second application is an audio playback application, and the third class The application is in addition to the first and second types of applications, including text editing applications. An application outside of the program.
  7. 如权利要求2所述的头戴式显示设备，其特征在于，所述处理器还根据所述接收器接收反射回来的传感信号的接收结果判断所述头戴式显示设备的穿戴/取下状态。The head-mounted display device according to claim 2, wherein the processor further determines that the head-mounted display device is worn/removed according to a reception result of the receiver receiving the reflected sensing signal. status.
  8. 如权利要求7所述的头戴式显示设备，其特征在于，所述处理器将所述接收器接收的传感信号的强度与一穿戴/取下区分阈值进行比较，在所述接收器接收到的传感信号的强度大于或等于所述穿戴/取下区分阈值时，确定所述头戴式显示设备处于穿戴状态，以及在所述接收器接收的传感信号的强度小于所述穿戴/取下区分阈值时，确定所述头戴式显示设备处于取下状态。A head mounted display device according to claim 7, wherein said processor compares the intensity of the sensor signal received by said receiver with a wear/drop discrimination threshold and receives at said receiver Determining that the head mounted display device is in a worn state when the intensity of the sensed signal is greater than or equal to the wear/removal discrimination threshold, and the intensity of the sensing signal received at the receiver is less than the wearable/ When the discrimination threshold is removed, it is determined that the head mounted display device is in the removed state.
  9. 如权利要求1所述的头戴式显示设备，其特征在于，所述处理器还在穿戴者穿戴头戴式显示设备后，将所述接收器接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器发射的传感信号的强度。The head-mounted display device according to claim 1, wherein the processor further transmits the intensity of the sensing signal received by the receiver to a standard reflected signal after the wearer wears the head mounted display device. The intensity values are compared and the intensity of the sensor signal emitted by the transmitter is adjusted based on the comparison.
  10. 如权利要求9所述的头戴式显示设备，其特征在于，所述处理器在接收器接收的传感信号的强度大于所述标准反射信号强度值时，控制调低所述发射器发射的传感信号的强度，所述处理器在接收器接收的传感信号的强度小于所述标准反射信号强度值时，控制调高所述发射器发射的传感信号的强度，直到所述接收器接收的传感信号的强度等于所述标准反射信号强度值为止。The head-mounted display device of claim 9, wherein the processor controls to decrease the emission of the transmitter when the intensity of the sensing signal received by the receiver is greater than the standard reflected signal strength value Sensing the strength of the signal, the processor controlling to increase the intensity of the sensing signal emitted by the transmitter until the intensity of the sensing signal received by the receiver is less than the standard reflected signal strength value The intensity of the received sensing signal is equal to the standard reflected signal strength value.
  11. 如权利要求1-10任一项所述的头戴式显示设备，其特征在于，所述传感器为红外传感器、光传感器或超声波传感器，所述传感信号为红外信号、光信号或超声波信号。The head-mounted display device according to any one of claims 1 to 10, wherein the sensor is an infrared sensor, a light sensor or an ultrasonic sensor, and the sensing signal is an infrared signal, an optical signal or an ultrasonic signal.
  12. 一种传感器功率调节方法，应用于一头戴式显示设备中，所述头戴式显示设备包括传感器，所述传感器包括发射器及接收器，其特征在于，所述方法包括步骤：A sensor power adjustment method for use in a head mounted display device, the head mounted display device comprising a sensor, the sensor comprising a transmitter and a receiver, wherein the method comprises the steps of:
    确定头戴式显示设备当前运行的应用程序；以及Determining which application the head mounted display device is currently running;
    根据头戴式显示设备当前运行的应用程序调节所述发射器的发射频率。The transmit frequency of the transmitter is adjusted according to an application currently running by the head mounted display device.
  13. 如权利要求12所述的传感器功率调节方法，其特征在于，所述步骤“根据头戴式显示设备当前运行的应用程序调节所述发射器的发射频率”包括： The sensor power adjustment method according to claim 12, wherein the step of "adjusting the transmission frequency of the transmitter according to an application currently running by the head mounted display device" includes:
    根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求调节所述发射器的发射频率。The transmit frequency of the transmitter is adjusted according to the response speed requirement of the wearable/removed state change of the head mounted display device according to the currently running application.
  14. 如权利要求13所述的传感器功率调节方法，其特征在于，所述步骤“根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求调节所述发射器的发射频率发射器”包括：The sensor power adjustment method according to claim 13, wherein said step "adjusts a transmission frequency of said transmitter according to a response speed requirement of a wearable/removed state change of the head mounted display device according to a currently running application. The transmitter" includes:
    在当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求越高时，将所述发射器的发射频率调节得越高。The higher the transmission speed of the transmitter is, the higher the response speed requirement for the wearable/removed state change of the head mounted display device is.
  15. 如权利要求13所述的传感器功率调节方法，其特征在于，所述步骤“根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求调节所述发射器的发射频率”包括：The sensor power adjustment method according to claim 13, wherein said step "adjusts a transmission frequency of said transmitter according to a response speed requirement of a wearable/removed state change of the head mounted display device according to a currently running application. "include:
    确定当前运行的应用程序所属的类别；Determine the category to which the currently running application belongs;
    根据所述应用程序所述的类别确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求；以及Determining, according to the category of the application, a response speed requirement of the application for wearing/removing a state change of the head mounted display device;
    根据所确定的响应速度需求，调节所述发射器的发射频率。The transmit frequency of the transmitter is adjusted based on the determined response speed demand.
  16. 如权利要求15所述的传感器功率调节方法，其特征在于，所述步骤“根据当前运行的应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求调节所述发射器的发射频率”包括：The sensor power adjustment method according to claim 15, wherein said step "adjusts a transmission frequency of said transmitter according to a response speed requirement of a wearable/removed state change of the head mounted display device according to a currently running application. "include:
    当确定所述头戴式显示设备运行的应用程序为第一类应用程序时，确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为最高；When it is determined that the application running by the head mounted display device is the first type of application, determining that the application has the highest response speed requirement for the wearable/removed state change of the head mounted display device;
    控制所述发射器以第一发射频率发射传感信号；Controlling the transmitter to transmit a sensing signal at a first transmission frequency;
    当确定所述头戴式显示设备运行的应用程序为第二类应用程序时，确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为次高；When it is determined that the application running by the head mounted display device is a second type of application, determining that the application has a second highest response speed requirement for the wearable/removed state change of the head mounted display device;
    控制所述发射器以第二发射频率发射传感信号；Controlling the transmitter to transmit a sensing signal at a second transmission frequency;
    当确定所述头戴式显示设备运行的应用程序为第三类应用程序时，确定所述应用程序对头戴式显示设备穿戴/取下状态改变的响应速度需求为最低；When it is determined that the application running by the head mounted display device is a third type of application, determining that the application has a minimum response speed requirement for the wearable/removable state change of the head mounted display device;
    控制所述发射器以第三发射频率发射传感信号；其中，所述第一类应用程序为视频播放类应用程序，所述第二类应用程序为音频播放类应用程序，所述第三类应用程序为包括文字编辑应用程序在内的除了第一类及第二类应用程序之外的应用程序，所述第一发射频率大于所述第二发射频率，所述第二发射 频率大于所述第三发射频。Controlling the transmitter to transmit a sensing signal at a third transmission frequency; wherein the first type of application is a video playback application, the second application is an audio playback application, the third The application is an application other than the first type and the second type of application including a text editing application, the first transmission frequency being greater than the second transmission frequency, the second transmission The frequency is greater than the third transmission frequency.
  17. 如权利要求12-16任一项所述的传感器功率调节方法，其特征在于，所述方法还包括：The sensor power adjustment method according to any one of claims 12 to 16, wherein the method further comprises:
    根据接收器所接收的反射回来的传感信号的接收结果判断所述头戴式显示设备的穿戴/取下状态。The wearable/removable state of the head mounted display device is determined according to a reception result of the reflected sensing signal received by the receiver.
  18. 如权利要求17所述的传感器功率调节方法，其特征在于，所述“根据接收器所接收的反射回来的传感信号的接收结果判断所述头戴式显示设备的穿戴/取下状态”包括：The sensor power adjustment method according to claim 17, wherein the "determining the wearing/removing state of the head mounted display device according to the reception result of the reflected sensing signal received by the receiver" includes :
    将所述接收器接收的传感信号的强度与一穿戴/取下区分阈值进行比较；Comparing the intensity of the sensing signal received by the receiver with a wear/removal discrimination threshold;
    在所述接收器接收的传感信号的强度大于或等于所述穿戴/取下区分阈值时，确定所述头戴式显示设备处于穿戴状态；以及Determining that the head mounted display device is in a worn state when an intensity of the sensing signal received by the receiver is greater than or equal to the wear/removal discrimination threshold;
    在所述接收器接收的传感信号的强度小于所述穿戴/取下区分阈值时，确定所述头戴式显示设备处于取下状态。And determining that the head mounted display device is in a removed state when the intensity of the sensing signal received by the receiver is less than the wear/removal discrimination threshold.
  19. 如权利要求12-16任一项所述的传感器功率调节方法，其特征在于，所述方法还包括：The sensor power adjustment method according to any one of claims 12 to 16, wherein the method further comprises:
    在穿戴者穿戴头戴式显示设备后，将所述接收器接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器发射的传感信号的强度。After the wearer wears the head mounted display device, the intensity of the sensing signal received by the receiver is compared with a standard reflected signal strength value, and the intensity of the sensing signal emitted by the transmitter is adjusted according to the comparison result.
  20. 如权利要求19所述的传感器功率调节方法，其特征在于，所述步骤“将所述接收器接收的传感信号的强度与一标准反射信号强度值进行比较，并根据比较结果调节所述发射器发射的传感信号的强度”包括：The sensor power adjustment method according to claim 19, wherein said step "comparing the intensity of the sensing signal received by said receiver with a standard reflected signal intensity value, and adjusting said emission according to the comparison result The intensity of the sensor signal emitted by the device" includes:
    在接收器接收的传感信号的强度大于所述标准反射信号强度值时，控制调低所述发射器发射的传感信号的强度；以及Controlling, when the intensity of the sensing signal received by the receiver is greater than the standard reflected signal strength value, reducing the intensity of the sensing signal emitted by the transmitter;
    在接收器接收的传感信号的强度小于所述标准反射信号强度值时，控制调高所述发射器发射的传感信号的强度，直到所述接收器接收的传感信号的强度等于所述标准反射信号强度值为止。 Controlling, when the intensity of the sensing signal received by the receiver is less than the standard reflected signal strength value, increasing the intensity of the sensing signal emitted by the transmitter until the intensity of the sensing signal received by the receiver is equal to Standard reflected signal strength values up to.
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