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WO2018191847A1 - Dispositif d'affichage pouvant être monté sur la tête et procédé de conditionnement de puissance d'un capteur de celui-ci - Google Patents

Dispositif d'affichage pouvant être monté sur la tête et procédé de conditionnement de puissance d'un capteur de celui-ci 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
Authority
WO
WIPO (PCT)
Prior art keywords
display device
mounted display
application
head mounted
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/080799
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English (en)
Chinese (zh)
Inventor
韩超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Royole Technologies Co Ltd
Original Assignee
Shenzhen Royole Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Priority to PCT/CN2017/080799 priority Critical patent/WO2018191847A1/fr
Priority to CN201780004633.1A priority patent/CN108521816A/zh
Publication of WO2018191847A1 publication Critical patent/WO2018191847A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'invention concerne un dispositif (100) d'affichage pouvant être monté sur la tête, comportant un processeur (10) et un capteur (20); le capteur (20) comporte un émetteur (21) et un récepteur (22); l'émetteur (21) est utilisé pour émettre un signal de détection à une fréquence d'émission prédéfinie, et le récepteur (22) est utilisé pour recevoir le signal de détection réfléchi; le processeur (10) est utilisé pour régler la fréquence d'émission de l'émetteur (21) en fonction d'une application actuellement en cours d'exécution par le dispositif (100) d'affichage pouvant être monté sur la tête. Dans le procédé de conditionnement de puissance du dispositif (100) d'affichage pouvant être monté sur la tête et du capteur (20), il est possible de régler la fréquence d'émission de l'émetteur (21) en fonction d'une exigence, d'une application actuellement en cours d'exécution, de vitesse de réaction par rapport à un changement dans l'état de port/retrait du dispositif (100) d'affichage pouvant être monté sur la tête, de telle façon que la fréquence d'émission de l'émetteur (21) soit réduite de manière à satisfaire l'exigence, réduisant la consommation d'énergie.
PCT/CN2017/080799 2017-04-17 2017-04-17 Dispositif d'affichage pouvant être monté sur la tête et procédé de conditionnement de puissance d'un capteur de celui-ci Ceased WO2018191847A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/080799 WO2018191847A1 (fr) 2017-04-17 2017-04-17 Dispositif d'affichage pouvant être monté sur la tête et procédé de conditionnement de puissance d'un capteur de celui-ci
CN201780004633.1A CN108521816A (zh) 2017-04-17 2017-04-17 头戴式显示设备及其传感器功率调节方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/080799 WO2018191847A1 (fr) 2017-04-17 2017-04-17 Dispositif d'affichage pouvant être monté sur la tête et procédé de conditionnement de puissance d'un capteur de celui-ci

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WO2018191847A1 true WO2018191847A1 (fr) 2018-10-25

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WO (1) WO2018191847A1 (fr)

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