JP2009105592A - Head-mounted display device, and power source control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for changing the source state even in the case of the power source of another device which is externally connected. <P>SOLUTION: A movement of a head-mounted display device 100 is specified from information detected by a head movement detection unit 200 and when there is not a movement exceeding a threshold for a predetermined time, a command to shut down external equipment to be connected, i.e. external equipment 400 is generated and transmitted. After it is confirmed that the external equipment 400 has been shut down, the device performs processing for shutting down itself. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a head mounted display device and a power supply control system.

  In a head-mounted display device that displays an image in front of the user's eyes, the movement of the user's head is detected, and control (reproduction start, pause, etc.) is performed on the image or video according to the specific movement, There are known techniques for scrolling a display image in accordance with head movements and moving the sound field of headphones to improve the sense of reality. Sensor) or an acceleration sensor.

  A head-mounted display device that uses these sensors to effectively prevent power consumption by shutting down the power when a user's head movement is not detected for a certain period of time is known (for example, , See Patent Document 1).

JP 2004-96224 A

  In the technique described in Patent Document 1, the head-mounted display device only shuts down its own power supply. For example, when other devices are externally connected via an interface when capturing a video source, etc. It was inconvenient because the power supply of the device had to be shut down separately.

  Therefore, in the head mounted display device, when it is detected that there has been no head movement above the threshold for a certain period of time, the power supply of other externally connected devices is also shut down when shutting down its own power supply. The purpose is to provide a technology that can do this.

  The invention according to claim 1 for solving the above problem is a head mounted display device capable of transmitting and receiving information to and from an external device, and a user who wears the device by detecting a displacement of the device. And a control unit that performs processing for transmitting a command for changing a power supply state to the external device according to a detection value detected by the operation detection unit. .

  As described above, according to the present invention, in the head-mounted display device, when it is detected that there has been no head movement above the threshold for a certain period of time, other devices connected externally when shutting down the power supply of the device itself A technology that can shut down the power supply can also be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  1 and 2 show an example of a head mounted display device (hereinafter abbreviated as HMD) 100 according to the first embodiment of the present invention. FIG. 1 is a perspective view of the HMD 100 according to the first embodiment of the present invention, and FIG. 2 is a side view of the HMD 100 according to the first embodiment of the present invention.

  As shown in the figure, the HMD 100 according to the present embodiment includes a head wearing band 110, an audio output unit 120, housings 130A and 130B, a support unit 140, an arm unit 150, a display unit 160, and an operation unit. 170.

  The head mounting band 110 is formed in a curved shape so that both ends thereof face each other. Further, the head wearing band 110 is formed of an elastic material, and when worn on the head of the user U, speakers 121A and 121B formed at both ends thereof (if these are not distinguished, The HMD 100 can be detachably mounted on the user U's head by pressing the head of the user U toward the inside of the user U's head.

  Enclosures 130A and 130B are connected to both ends of the head wearing band 110. The enclosure 130A is provided with a speaker 121A, and the enclosure 130B is provided with a speaker 121B. In addition, inside the head-mounted band 110, signal lines for electrically connecting the speakers 121A and 121B, the operation unit 170, and the display unit 160, and a power source built in the housing 130A described later. A power line for supplying power is wired from the unit 180.

  The audio output unit 120 converts the audio signal into audio. In the present embodiment, speakers 121 </ b> A and 121 </ b> B are provided, which are so-called headphones speakers used by being applied to both ears of the user U. In FIG. 1, the right speaker 121A is the left ear speaker, and the left speaker 121B is the right ear speaker. These left and right distinctions may be arbitrarily determined by the operation of the user U. In addition, a power line for supplying power from the power supply unit 180 and an audio signal line for supplying an audio signal are wired.

  The casings 130A and 130B are provided on both ends in the longitudinal direction of the head mounting band 110, and speakers 121A and 130B are provided on the outer wall surfaces of the casings 130A and 130B on the head side (opposite sides) of the user U. 121B are connected to each other. In the present embodiment, the control device 300 and the power supply unit 180 are built in the housing 130B, and the operation unit 170 is provided on the outer wall surface opposite to the speaker 121B.

  The power supply unit 180 is connected to the audio output unit 120, the display unit 160, the operation unit 170, and the control device 300 through a power line. A power switch (not shown) for switching the power of the HMD 100 on and off is provided on the outer wall surface of the housing 130A opposite to the speaker 121A.

  The power supply unit 180, the control device 300, the operation unit 170, and the power switch may be arranged in any of the housings 130A and 130B, and the housings 130A and 130B are integrated with the speakers 121A and 121B. It is good also as such a structure.

  The support unit 140 rotatably connects one end side of the arm unit 150 to the housing 130B. Any connection method may be used.

  When the arm 150 is attached to the head of the user U, the display unit 160 attached to the other end of the arm 150 other than the casing 130A is in front of the user U. It is curved in its longitudinal direction so as to be located. In addition, a power line for supplying power to the display unit 160 and an image signal line for supplying an image signal are wired from the power source unit 180 inside.

  The display unit 160 is connected to the tip of the arm unit 150 so as to be rotatable in accordance with the line of sight of the user U. The display unit 160 converts an image signal representing an image into an optical signal to form an image, an optical system for enlarging the formed image, and an LCD (Liquid Crystal Display) 161 as a display device. And displaying an image based on an image signal supplied from the control device 300.

  The operation unit 170 includes operation switches 171A, 171B, 171C, 171D, and 171E, and a power switch (not shown). Through the operation switches 171A, 171B, 171C, 171D, and 171E, it is possible to input instructions related to the HMD 100 such as play, stop, fast forward, rewind, cancel control processing, and change the volume. ing. When an operation instruction is input via these switches, it is transmitted to the control unit 310 via the I / F unit 330.

  Further, a remote controller (not shown) capable of performing operations related to the HMD 100 may be provided separately. The remote control can be operated by the user U while watching the operation switch by wireless or wired. In that case, the remote controller receiving unit 172 may be provided in the operation unit 170.

  Next, the power supply control system 1 according to the first embodiment of the present invention will be described with reference to FIG. The power supply control system 1 includes an HMD 100 and an external device 400.

  First, the external device 400 will be described. The external device 400 is a device connected to the HMD 100 so as to be able to transfer data. Specifically, the external device 400 is a personal computer, an optical disk playback device, an audio playback device, or the like. By connecting the HMD 100 and the external device 400, it becomes possible to exchange video and audio data between them.

  FIG. 3 is a block diagram showing a functional configuration of the HMD 100 and the external device 400 of the power supply control system 1 according to the first embodiment of the present invention. The external device 400 includes a control unit 410, an I / F unit 430, and a power supply unit 480.

  The I / F unit 430 includes a terminal conforming to a standard such as USB (Universal Serial Bus) or IEEE1394 as a general-purpose bus that connects the HMD 100 and the external device 400 so that data can be transferred. In addition, a short-distance wireless communication between devices such as a wireless LAN module or Bluetooth (registered trademark) may be provided.

  The power supply unit 480 is connected to the control unit 410 and the I / F unit 430, and receives power supply adjustment by the power supply control unit 412.

  The control unit 410 includes a state management unit 411, a power supply control unit 412, and an overall control unit 413. The state management unit 411 performs a state change completion response notifying the control device 300 of the completion of the power state change immediately before the transition of the power state of the external device 400 is completed. The power supply control unit 412 controls the power supply unit 480 in accordance with a command transmitted from the control device 300. The overall control unit 413 centrally controls the control device 300.

  Next, the control device 300 will be described. As illustrated in FIG. 3, the control device 300 includes a head movement detection unit 200, a control unit 310, a storage unit 320, and an I / F unit 330.

  First, the head movement detection unit 200 will be described. The head motion detection unit 200 is a device for detecting head motion, and is an angular velocity sensor (Z) 201A and an angular velocity sensor (X) 201B (if they are not distinguished from each other, they are simply expressed as 201). It is equipped with. The head motion detection unit 200 detects, as an angular velocity, direction information related to a detection target, that is, the user U's head motion, from a specific reference axis. In the head motion detection unit 200 according to the first embodiment of the present invention, as shown in FIG. 1, the vertical direction (the direction in which the user U stands upright) is the Z axis, and one side surface of the user orthogonal to the Z axis. The axis in the direction from the first to the other side (the direction penetrating the speakers 121A and 121B) is taken as the X axis, and angular velocity detection is performed using these two axes as reference axes.

  As the angular velocity sensor 201, an optical gyro that makes use of the fact that when a laser beam is circulated by a mirror or fiber in the housing and the housing changes direction, the timing of light reception from the light emission of the laser that circulates inside changes, Applying precession, a mechanical gyro that detects angular variation, utilizing the fact that when angular velocity is applied to the mass that vibrates (primary vibration), vibration (secondary vibration) is also generated in the direction perpendicular to it by Coriolis force. A vibrating gyroscope or the like can be used. Here, a piezoelectric vibration gyro using piezoelectric ceramics is used as the angular velocity sensor (Z) 201A and the angular velocity sensor (X) 201B.

  As shown in FIG. 1, the angular velocity sensor (Z) 201A detects the angular velocity in the yaw direction, that is, the yaw angle that is the inclination of the rotation angle around the Z axis, and the angular velocity sensor (X) 201B The angular velocity in the (Pitch) direction, that is, the pitch angle that is the inclination of the rotation angle around the X axis is detected. With such a sensor, the HMD 100 can detect a horizontal swing motion and a vertical swing motion of the user U's head. In the present embodiment, the angular velocity sensor 201 performs sampling every predetermined cycle (for example, 50 msec), and the detection result is output as an analog voltage value proportional to the angular velocity. The output voltage value is converted into a digital signal by an A / D converter (not shown) and transmitted to the control unit 310 of the control device 300.

  Further, the number of angular velocity sensors 201 is not limited to that described above. An angular velocity sensor with the Y axis as a reference axis for detecting the movement of the user U's head can be further provided so that the roll angle can be detected. An angular velocity may be detected.

  An acceleration sensor may be further provided in addition to the angular velocity sensor 201, and a configuration having only an acceleration sensor instead of the angular velocity sensor may be employed.

  Similar to the I / F unit 430, the I / F unit 330 connects the HMD 100 and the external device 400 so that data can be transferred. Furthermore, the audio output unit 120, the display unit 160, the operation unit 170, and the power supply unit 180 are connected to the control device 300.

  The storage unit 320 stores a message screen 1600 (see FIG. 7) stored in advance.

  The control unit 310 includes an operation analysis unit 311, a command generation unit 312, and a power supply control unit 313.

  The motion analysis unit 311 receives the voltage value sent from the angular velocity sensor 201. Then, it is determined whether or not the voltage value is equal to or less than the threshold value Th. When the voltage value is equal to or less than the threshold value Th, a timer (not shown) provided separately in the motion analysis unit 311 is started, Is exceeded, the command generation unit 312 is requested to generate a command.

  The threshold value Th is provided to detect that the head movement of the user U is small or not at all, and to determine that the HMD 100 is not worn or is worn but hardly used. . For example, if the threshold Th is set to a very small value, it can be considered that the HMD 100 is in a stationary state in which the HMD 100 is not attached when the amount of change below the threshold Th continues. The threshold value Th may be set in advance, or may be set freely by the user U.

  The predetermined time T is provided in order to determine whether a state where the head movement of the user U is small or not at all continues for a predetermined time T or longer. The predetermined time T may be set to any value, but as the predetermined time T is smaller, the power supply state can be changed in a shorter time, and power can be saved. Of course, the user U may freely set it.

  The command generation unit 312 generates a command for changing the power status of the HMD 100 and the external device 400. Further, when a state change completion response is received from the external device 400 to notify the completion of the power state change, the message screen 1600 stored in the storage unit 320 is read and an image signal to be displayed on the display unit 160 is output.

  Here, for convenience, a command for changing the power supply state of the external device 400 is referred to as command A, and a command for changing the power supply state of the HMD 100 is referred to as command B.

  Here, the power states of the HMD 100 and the external device 400 will be described. In addition to the normal on / off state, power is supplied only to the memory in order to save power consumption, such as a CPU (Central Processing Unit), HDD (Hard Disk Drive), and a non-volatile semiconductor memory. There are a STR (Suspend To Ram, so-called standby) state in which power supply to devices such as an external storage device is stopped, and a hibernation state in which power supply is almost completely stopped. In these states, since power is supplied to some devices, it is possible to start faster than shutdown.

  The power supply control unit 313 controls the power supply of the power supply unit 180 and changes the power supply state of the HMD 100.

  Hereinafter, the above-described processing will be described in detail with reference to FIG. FIG. 4 is a flowchart illustrating processing when the control unit 310 and the control unit 410 according to the first embodiment receive a voltage value sent from the head movement detection unit 200.

  The motion analysis unit 311 accepts voltage values detected and output at predetermined intervals (here, 50 msec) from the angular velocity sensor (Z) 201A and the angular velocity sensor (X) 201B (S1001).

  Next, the motion analysis unit 311 subtracts a predetermined reference value from the voltage value to calculate a true change amount of the head motion, and compares the change amount with a threshold value Th to determine whether or not it is equal to or less than Th. (S1002).

  If the amount of change is not equal to or less than Th (NO in S1002), if the timer provided in the motion analysis unit 311 has started, it is reset, returned to 0 and stopped (S1005), and the process returns to Step 1001 and is repeated.

  If the amount of change is equal to or less than Th (YES in S1002), the process proceeds to step 1003.

  If the change amount is equal to or smaller than Th in step 1002, the motion analysis unit 311 determines whether or not the timer is operating (S1003). If the timer is not in operation (NO in S1003), the timer is started (S1006), and the process returns to step 1001 and is repeated. If the timer is operating (YES in S1003), the process proceeds to step 1004.

  In step 1003, if the timer is operating, the operation analysis unit 311 compares the current accumulated time of the timer with a predetermined time T and determines whether or not it is equal to or greater than T (S1004). If the accumulated time is not equal to or greater than T (NO in S1004), the process returns to Step 1001 to repeat the process. If the accumulated time is equal to or greater than T (YES in S1004), the process proceeds to Step 1007.

  In step 1004, when the accumulated time of the timer is equal to or longer than the predetermined time T, the command generation unit 312 generates the command A that requests the shutdown of the external device 400 and shifts to the power state OFF, and the I / F unit To the external device 400 (S1007).

  Here, processing of the external device 400 that has received the command A from the command generation unit 312 will be described. When receiving the command A via the I / F unit (S1101), the power control unit 412 of the control unit 410 starts a shutdown for shifting the power state to OFF based on the command instruction (S1102).

  The power supply control unit 412 controls the power supply unit 180 to preferentially stop power supply from each unit other than the I / F unit 430, the state management unit 411, and the power supply control unit 412. The management unit 411 is requested for a state change completion response.

  Next, when the state management unit 411 receives a request for a state change completion response from the power supply control unit 412, the state management unit 411 performs a state change completion response notifying the control device 300 that the power supply state is turned off (S1103). Then, after the completion of transmission of the state change completion response to the HMD 100 via the I / F unit 430, the power supply control unit 412 supplies power to the I / F unit 430, the state management unit 411, and the power supply control unit 412. The supply is stopped, the shutdown of the external device 400 is completed, and the process ends (S1104).

  Returning to the processing of the control unit 310, when the command generation unit 312 receives the state change completion response transmitted from the external device 400 via the I / F unit, the message screen 1600 (preliminarily stored in the storage unit 320 ( 7) and an image signal is output to the display unit 160 via the I / F unit (S1008). Next, a command B for requesting the shutdown of the HMD 100 is generated and output to the power control unit 313 (S1009).

  When receiving the command B, the power supply control unit 313 executes the shutdown of the HMD 100 and stops the power supply of the power supply unit 180 (S1010).

  With the configuration as described above, the HMD 100 determines the usage state from the voltage value output from the angular velocity sensor 201, and shuts down the connected external device 400 if there is no operation exceeding the threshold over a predetermined time. . The external device 400 notifies the HMD 100 that the shutdown is completed immediately before the shutdown, so that the HMD 100 can present a message screen 1600 informing the user U of the fact. Thereafter, the HMD 100 itself can also perform a shutdown to avoid unnecessary power consumption.

  The state change completion response may be transmitted to the HMD 100 as a state change start response at the same time when the external device 400 starts to shut down. As a result, both devices can be shut down in a shorter time. At this time, the message screen displays that the external device 400 has been shut down.

  Further, the power supply state requested by commands A and B is not limited to the above. Any other mode depending on the model or OS, such as a special low power state or hibernation state, may be used. Further, the commands A and B do not have to request the same power supply state, and may be in any combination. The combination may be determined in advance or may be configured to detect an optimum state each time.

  In addition, when there is an operation instruction of the HMD 100 by the user U through the operation unit 170 between Step 1001 and Step 1004, the process may proceed to Step 1005 and return to Step 1001 to perform processing. good. Thereby, even if the user U performs an operation by another method and the head movement is not detected for a predetermined time, it is possible to continue the use without changing the power supply state.

  Furthermore, even when data is exchanged via the I / F unit between Step 1001 and Step 1004, the configuration may be such that the processing returns to Step 1001 through Step 1005 and processing is performed. Accordingly, it is possible to keep the power state unchanged while data transfer is being executed between the HMD 100 and the external device 400.

In step 1008, the HMD 100 may be configured to detect the electrical continuity state of the I / F unit instead of receiving the state change completion response. For example, in the case of USB connection, it is possible to detect that the shutdown of the external device 400 is completed by interrupting the _VBUS signal. Therefore, the command generation unit 312 can be configured to execute output of the message screen 1600 and shutdown only in such a case.

  Here, the hardware configuration of the HMD 100 and the external device 400 will be described. FIG. 8 is a block diagram showing an electrical configuration of the HMD 100 and the external device 400 connected to each other.

  As shown in FIG. 8, the HMD 100 includes a CPU 11 that centrally controls each device, a memory 12 that stores various data in a rewritable manner, various programs, nonvolatile auxiliary data that stores data generated by the programs, and the like. The memory 13 includes an I / F unit 14 that connects the external device 400 so that data can be transferred, and a battery 15. The control unit 310 can be realized, for example, by reading a predetermined program stored in the auxiliary memory 13 into the memory 12 and executing it by the CPU 11.

  The external device 400 can be realized by a personal computer including a CPU 21, a memory 22, an HDD (Hard Disk Drive) 23, an I / F unit 24 that connects the HMD 100 so that data can be transferred, and a battery 25. The control unit 410 can be realized, for example, by reading a predetermined program stored in the HDD 23 into the memory 22 and executing it by the CPU 21.

  Next, a second embodiment of the present invention will be described. The HMD 500 according to the second embodiment and the external device 600 are different from each other because the processing of the control unit 310 and the control unit 410 is different from that of the first embodiment. Related items will be described.

  When the command generation unit 312 of the HMD 500 transmits a command A requesting the change of the power supply state to the external device 600, the command generation unit 312 further generates a command B and executes its own shutdown. When the external device 600 receives the command A, the external device 600 executes / ends the power supply change without performing the response process to the HMD 500.

  FIG. 5 is a flowchart illustrating processing when the control unit 310 and the control unit 410 according to the second embodiment receive a voltage value sent from the head movement detection unit 200.

  Since steps 2001 to 2006 in the present embodiment are the same processes as steps 1001 to 1006 in the first embodiment, detailed description thereof will be omitted.

  In step 2004, when the accumulated time of the timer is equal to or longer than the predetermined time T, the command generation unit 312 generates the command A that shuts down the external device 600 and requests the transition to the power-off state, and the I / F unit To the external device 600 (S2007).

  Here, processing of the external device 600 that has received the command A from the command generation unit 312 will be described. When the power control unit 412 of the control unit 410 receives the command A via the I / F unit (S2101), the power control unit 412 starts shutdown for shifting the power state to OFF based on the command A command, The power supply to the unit 480 is stopped, and the process ends (S2102).

  Returning to the processing of the control unit 310, the command generation unit 312 transmits the command A to the external device 600, generates a command B for requesting the shutdown of the HMD 500, and outputs the command B to the power supply control unit 313 (S2008). .

  When receiving the command B, the power supply control unit 313 executes the shutdown of the HMD 500 and stops the power supply of the power supply unit 180 (S2009).

  As described above, the HMD 500 itself starts shutdown after transmitting a command requesting shutdown to the external device 600. Therefore, both devices can be shut down in a shorter time by executing the shutdown process of the HMD 500 without waiting for the response of the external device 600.

  Next, a third embodiment of the present invention will be described. The HMD 700 according to the third embodiment and the external device 800 are different from each other because the processes of the control unit 310 and the control unit 410 are different from those of the first embodiment. Related items will be described.

  When the state management unit 411 of the external device 800 receives a command A requesting to change the power supply state from the HMD 700, the state management unit 411 generates a command B requesting that the power supply state of the HMD 700 shift to standby and transmits the command B to the HMD 700. . When receiving the command B, the power control unit 313 of the HMD 700 shifts the power state to standby.

  FIG. 6 is a flowchart illustrating processing when the control unit 310 and the control unit 410 according to the third embodiment receive a voltage value transmitted from the head movement detection unit 200.

  Since steps 3001 to 3006 in the present embodiment are the same processes as steps 1001 to 1006 in the first embodiment, a detailed description thereof will be omitted.

  In step 3004, when the accumulated time of the timer is equal to or longer than the predetermined time T, the command generation unit 312 generates a command A requesting the external device 800 to shift the power supply state to standby, and the I / F The data is transmitted to the external device 800 via the unit (S3007).

  Here, processing of the external device 800 that has received the command A from the command generation unit 312 will be described. When the power control unit 412 of the control unit 410 receives the command A via the I / F unit, the power management unit 412 requests the state management unit 411 to generate a command B requesting the HMD 700 to shift the power state to standby. This is performed (S3101). When receiving the generation request from the power supply control unit 412, the state management unit 411 generates a command B and transmits it to the HMD 700 (S3102). Next, the power control unit 412 shifts the power state to standby based on the command A, and ends the process (S3103).

  Returning to the processing of the control unit 310, when the power supply control unit 313 receives the command B transmitted from the external device 800 via the I / F unit, the power supply control unit 313 shifts the power supply state to standby based on the command B command. The process is terminated (S3009).

  With the configuration as described above, the user U can return to the original state earlier than the shutdown by releasing the standby state of the HMD 700 and the external device 800. The standby state may be canceled by an operation through each operation switch or a head movement. At that time, even if the power supply state is standby, at least the operation unit 170, the head movement detection unit 200, and a part of the control unit 310 are kept energized. Note that, when the HMD 700 is restored to the original state, the external device 800 may be restored at the same time.

  Furthermore, when the standby state is started, it is also possible to start the timer at the same time and to shut down both devices again when a certain time is exceeded.

  In the embodiment described above, the request for changing the commands A and B is not limited to the power state. For example, it may be a command that requests execution of a process that activates / cancels a screen saver or switches the display device backlight on / off.

  Moreover, application of the control apparatus 300 in embodiment described above is not restricted to HMD. The present invention can also be applied to other devices including a head detection unit.

It is a perspective view of HMD100 concerning a first embodiment of the present invention. It is a side view of HMD100 concerning a first embodiment of the present invention. It is a block diagram which shows the functional structure of the power supply control system 1 of this invention. 5 is a flowchart illustrating processing when the control unit 310 and the control unit 410 according to the first embodiment of the present invention receive a voltage value sent from the head movement detection unit 200. It is a flowchart which shows the process at the time of the control part 310 which concerns on 2nd embodiment of this invention, and the control part 410 receiving the voltage value sent from the head movement detection part 200. It is a flowchart which shows the process at the time of the control part 310 which concerns on 3rd embodiment of this invention, and the control part 410 receiving the voltage value sent from the head movement detection part 200. 10 is a schematic diagram showing a display example of a message screen 1600. FIG. 3 is a block diagram showing an electrical configuration of an HMD 100 and an external device 400. FIG.

Explanation of symbols

  100, 500, 700: HMD, 400, 600, 800: External device, 110: Head wearing band, 120: Audio output unit, 130A, 130B: Housing, 140: Support unit, 150: Arm unit, 160: Display , 161: LCD, 170: operation unit, 171A, 171B, 171C, 171D, 171E: operation switch, 172: remote control reception unit, 180, 480: power supply unit, 200: head motion detection unit, 300: control device, 310, 410: control unit, 311: operation analysis unit, 312: command generation unit, 313, 412: power supply control unit, 320: storage unit, 330, 430: input / output interface unit, 411: status management unit, 413: overall Control unit, 1600: message screen.

Claims (9)

A head mounted display device capable of transmitting and receiving information to and from an external device,
An operation detection unit that detects the operation of the user wearing the device by detecting the displacement of the device;
A control unit that performs processing for transmitting a command to change a power supply state to the external device according to a detection value detected by the operation detection unit;
A head-mounted display device comprising: The head-mounted display device according to claim 1,
The process of transmitting the command is executed when the detected value indicates that the user's action is not more than a predetermined magnitude for a predetermined time or more,
A head-mounted display device. The head mounted display device according to claim 1 or 2,
With power supply,
The controller is
A head mounted display device, further comprising a process of changing the power supply unit so as to be in a power supply state corresponding to the command. The head mounted display device according to claim 3,
The process of changing the power state
Executed by receiving the command from the external device;
A head-mounted display device. The head mounted display device according to any one of claims 1 to 4,
With a display,
The controller is
When receiving a notification indicating that the power state change process is to be terminated from the external device, further executing a process of outputting a message to call attention to the display unit;
A head-mounted display device. Computer
Interface means for transmitting and receiving information to and from the head mounted display device;
A program that functions as a control means,
In the control means,
A process of receiving a command to change the power state from the head-mounted display device via the interface means;
Based on the command, a process for starting the change of the power state;
After starting the change of the power supply state, performing the process of notifying the end of the change process of the power supply state to the head mounted display device via the interface means,
A program characterized by The program according to claim 6,
In the control means,
A process of receiving a first command for changing a power state from the head-mounted display device via the interface means;
When the first command is received via the interface means, a second command for changing the power state of the head mounted display is generated and transmitted to the head mounted display via the interface means. Processing,
Based on the first command, a process for starting the change of the power state;
A program characterized by having A power control system having a head mounted display device and an external device,
The head mounted display device is:
An action detection unit that detects a movement of a user wearing the own apparatus as a detection value by detecting a displacement of the own apparatus;
A process of determining whether the detected value indicates that the user's action is not more than a predetermined magnitude for a predetermined time or more;
When the detected value is determined to indicate that the user's action is not more than a predetermined magnitude for a predetermined time or more, a command for changing the power state of the external device is generated. Processing to send to the external device,
Upon receiving a notification sent from the external device to finish changing the power state, a process of changing the power state of the head mounted display device itself;
A control unit for executing
A control device comprising:
The external device is
A process of receiving the command from the head mounted display device;
Based on the command, a process for starting a change in the power state of the external device;
A power control system comprising: a control unit that executes a process of notifying the head mounted display device of the end of the change after starting the change of the power state of the external device. A power control system having a head mounted display device and an external device,
The head mounted display device is:
An action detection unit that detects a movement of a user wearing the own apparatus as a detection value by detecting a displacement of the own apparatus;
A process of determining whether the detected value indicates that the user's action is not more than a predetermined magnitude for a predetermined time or more;
A first command for changing the power state of the external device when the detected value is determined to indicate that the user's action is not more than a predetermined magnitude for a predetermined time or more. Generating and transmitting to the external device;
A process of receiving a second command for changing the power state of the head mounted display device from the external device;
Based on the second command, a process for changing the power state of the device itself,
A control device comprising:
The external device is
A process of receiving the first command from the head mounted display device;
When receiving the first command, generating a second command to change the power state of the head-mounted display, and transmitting to the head-mounted display;
Based on the first command, a process for starting a change in the power state of the own device;
A control unit for executing
A power control system.

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