JP2016187130A - Wearable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wearable terminal which allows a user to easily identify the imaging area of a camera mounted to his or her head.SOLUTION: A wearable terminal 100 mounted to a user's head comprises a display 10 for displaying information, an imaging unit 20 for imaging the outside, and a light source 30. The light source 30 is disposed so that light 31 emitted the light source 30 allows the user to identify the imaging area of the imaging unit 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wearable terminal that a user wears on his / her head.

  In recent years, wearable terminals have attracted attention. Various types of wearable terminals such as a glasses type and a wristwatch type have been proposed. Among these, in the glasses-type wearable terminal, the user can check the information presented by the terminal while visually recognizing in the real world, so that the demand for business use is increasing (for example, non- (See Patent Document 1.)

  Business applications include, for example, aircraft maintenance and medical care. In the former, since the worker can receive the work instruction at any time and can work while looking at it, the work efficiency can be improved. In the latter case, the nurse can prepare for the operation while confirming the information on the medical material necessary for the operation, so that the work load and mistakes can be reduced.

  In addition, in such a glasses-type wearable terminal, in addition to a display display, a camera for photographing the outside may be attached. In such an aspect, various processes can be performed based on the photographed image, and the work efficiency for the user can be further improved.

  For example, when handling inventory management and shipping of a product, if a wearable terminal with a camera is used, the two-dimensional code of the product can be read by the camera, and the user can immediately confirm the product. Further, in the medical field described above, it is possible to determine whether the wrong medical material is selected on the terminal side by reading the label of the medical material with the camera.

"Development of a compact and lightweight single-eye display module using high-quality organic EL-to a wearable terminal that can display image information by attaching it to eyewear", [online], December 17, 2014 , Sony Corporation, [Search March 6, 2015], Internet <URL: http://www.sony.co.jp/SonyInfo/News/Press/201412/14-118/index.html>

  However, when a camera is attached to a glasses-type wearable terminal, the camera is usually located beside the user's head, and thus there is a problem that it is difficult for the user to check the shooting target of the camera.

  In addition, it is conceivable to display an image obtained by the camera on the screen of the wearable terminal. However, since the screen size is limited, in this case, the space for displaying necessary information is small. Therefore, it becomes difficult for the user to visually recognize the information.

  An example of the object of the present invention is to provide a wearable terminal that solves the above-described problems and allows a user to easily specify a shooting region of a camera that is worn on his / her head.

In order to achieve the above object, a wearable terminal according to one aspect of the present invention is a wearable terminal that is directly or indirectly attached to a user's head,
A display unit for displaying information, an imaging unit for photographing the outside, and a light source;
The light source is arranged so that a photographing region of the imaging unit is specified by a user by light emitted from the light source,
It is characterized by that.

  As described above, according to the present invention, the user can easily specify the imaging region of the camera attached to his / her head.

FIG. 1 is a perspective view showing an appearance of a wearable terminal according to an embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the wearable terminal according to the embodiment of the present invention. FIG. 3 is an explanatory diagram for explaining the field of view of the user using the wearable terminal according to the present embodiment. FIG. 4 is a diagram showing a part of the configuration of the wearable terminal in the present embodiment.

(Embodiment)
Hereinafter, a wearable terminal 100 according to an embodiment of the present invention will be described with reference to FIGS.

  First, the external configuration of the wearable terminal according to the present embodiment will be described with reference to FIG. FIG. 1 is a perspective view showing an appearance of a wearable terminal according to an embodiment of the present invention.

  As shown in FIG. 1, wearable terminal 100 according to the present embodiment is attached directly or indirectly to the user's head. In the present embodiment, wearable terminal 100 is attached to eyewear 200 worn by the user, and is indirectly worn on the user's head via eyewear 200. In the present specification, the “head” includes a face.

  As illustrated in FIG. 1, the wearable terminal 100 includes a display unit 10 that displays information, an imaging unit 20 that captures an image of the outside, and a light source 30. Among these, the light source 30 is arranged so that the user can specify the imaging region of the imaging unit 20 by the light 31 emitted therefrom.

  As described above, the wearable terminal 100 is equipped with the light source 30, and the imaging region of the imaging unit 20 is indicated by the light emitted therefrom. For this reason, the user can easily specify the imaging region. For this reason, the user can reliably shoot the target when the imaging unit 20 needs to shoot a specific target.

  Next, the configuration of the wearable terminal according to the present embodiment will be specifically described with reference to FIG. 2 in addition to FIG. FIG. 2 is a block diagram showing the configuration of the wearable terminal according to the embodiment of the present invention.

  As shown in FIG. 2, the wearable terminal according to the present embodiment includes a drive unit 40, a data acquisition unit 50, and an arithmetic processing unit in addition to the display unit 10, the imaging unit 20, and the light source 30 shown in FIG. 60 and a sensor unit 70.

  In the present embodiment, the display unit 10 is a transmissive display panel. The display part 10 is arrange | positioned so that it may be located in front of a user's eyes. For this reason, the user can visually recognize the situation in the real world and the information displayed on the screen of the display unit 10 at the same time.

  The imaging unit 20 is a camera, and includes an optical system such as a lens and a solid-state imaging element (not shown) in the present embodiment. For this reason, the imaging unit 20 can output image data that identifies the captured image.

  In the present embodiment, the light source 30 is a laser light source capable of emitting laser light with high directivity. Further, the light source 30 is arranged so that laser light emitted from the light source 30 enters the imaging region of the imaging unit 20. The light source 30 only needs to be a light source capable of emitting light with a secured directivity, and may be a light source other than a laser light source. Other examples of the light source 30 include a light emitting diode.

  The drive unit 40 supplies power to the light source 30 and drives it. In addition, the drive unit 40 controls the emission of light by the light source 30 in accordance with an instruction from the arithmetic processing unit 60. Specifically, the driving unit 40 supplies power to the light source 30 when the arithmetic processing unit 60 instructs the emission, and supplies power to the light source 30 when the arithmetic processing unit 60 instructs the stop of the emission. Stop.

  The data acquisition unit 50 receives the image data output from the imaging unit 20, and performs digital processing on the image data. In addition, the data acquisition unit 50 inputs the digitally processed image data to the arithmetic processing unit 60.

  The sensor unit 70 includes an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor (not shown in FIG. 2), and outputs signals from these sensors to the arithmetic processing unit 60. In addition, since the signal output from the sensor unit 70 changes according to the inclination of the wearable terminal 100, the inclination of the optical axis of the light source 30 can be detected by this signal.

  The arithmetic processing unit 60 is constituted by, for example, a computer including a CPU (Central Processing Unit) and the like, and executes various application programs to perform processing. For example, based on the image data from the data acquisition unit 50, the arithmetic processing unit 60 converts a two-dimensional code included in the image data into information that can be recognized by the user, and displays the obtained information on the display unit 10. (See FIG. 3).

  In addition, the arithmetic processing unit 60 can detect the inclination of the optical axis of the light source based on the signal from the sensor unit 70, and can cause the light source to emit light or stop emitting light according to the detected inclination. . Specifically, when a signal is output from the sensor unit 70, the arithmetic processing unit 60 specifies the current optical axis inclination from the preset relationship between the signal and the optical axis inclination.

  When the specified inclination is within a range set with reference to the horizontal (a range that can be said to be substantially horizontal, for example, within a range from 5 degrees above to 5 degrees below). Then, the drive unit 40 stops the emission of light from the light source 30. On the other hand, when the specified inclination exceeds the set range, the arithmetic processing unit 60 causes the drive unit 40 to emit light from the light source 30.

  That is, the arithmetic processing unit 60 causes the driving unit 40 to emit light from the light source 30 when the user faces the face upward or downward. On the other hand, the arithmetic processing unit 60 causes the driving unit 40 to stop emitting light from the light source 30 when the user faces the face in the horizontal direction.

  In this way, since the irradiation of light can be switched on and off according to the orientation of the user's face, the user can put his hand in the work when a person appears in front of him and wants to stop the irradiation of light immediately. Light irradiation can be stopped quickly without using it.

  FIG. 3 is an explanatory diagram for explaining the field of view of the user using the wearable terminal according to the present embodiment. In the example of FIG. 3, there is a barcode that looks at a plurality of boxes on which a two-dimensional code is printed in the user's field of view. Since the user can visually recognize the laser beam 31 emitted from the light source 30 in the field of view, the user can recognize where the imaging region of the imaging unit 20 is. In FIG. 3, for the sake of explanation, the imaging region 21 is indicated by a broken line.

  Thus, using wearable terminal 100, according to the present embodiment, the user can easily specify the imaging region of imaging unit 20 worn on his / her head. In the example of FIG. 3, information represented by the captured two-dimensional code is displayed on the screen 11 of the display unit 10.

[Modification 1]
Subsequently, a modified example in the present embodiment will be described. The arithmetic processing unit 60 can detect a human based on the image data from the data acquisition unit 50. Specifically, the arithmetic processing unit 60 determines whether or not there is a region in the image data that satisfies a preset condition, for example, a region having a human face feature amount. If it is determined that the person is shooting, it is determined that the person is photographed.

  When the arithmetic processing unit 60 determines that a person has been photographed (when a person has been detected), the arithmetic processing unit 60 causes the drive unit 40 to stop emitting light from the light source 30. According to the modified example 1, when a person is photographed, the emission of the laser beam is automatically stopped, so that the safety can be further improved.

[Modification 2]
The arithmetic processing unit 60 can execute a specific object detection process based on the image data from the data acquisition unit 50. Specifically, when a region having a preset feature amount appears in the image data, the arithmetic processing unit 60 detects this region as a specific object. In this case, the arithmetic processing unit 60 causes the drive unit 40 to start emitting light from the light source 30 using the detection of a specific object as a trigger. Also in the case of the modification 2, it becomes possible to improve safety | security more.

  In the example of FIG. 3, a two-dimensional code is a detection target. In this case, the arithmetic processing unit 60 causes the drive unit 40 to start emitting light from the light source 30 when a two-dimensional code appears in the image data. After that, the arithmetic processing unit 60 performs an analysis process on the detected two-dimensional code, and when the information represented by the two-dimensional code can be specified, as shown in FIG. 10 screens are displayed.

[Modification 3]
The arithmetic processing unit 60 identifies the movement or shape of the user's hand based on the image data from the data acquisition unit 50, and emits light from the light source 30 to the driving unit 40 based on the identified movement or shape. Alternatively, the emission can be stopped.

  Specifically, if a hand motion is used, the arithmetic processing unit 60, when a region having a preset hand feature amount appears in the image data, this region is set to the set frame. Acquire several minutes to identify the change pattern of this area. When the specified change pattern matches the preset pattern, the arithmetic processing unit 60 performs processing (emission of light or stop of emission) associated with the preset pattern, The driving unit 40 is caused to perform the operation.

  If a hand shape is used, the arithmetic processing unit 60 acquires this region when a region having a preset feature value of the hand appears in the image data. Then, when the shape of the acquired area matches the preset shape, the arithmetic processing unit 60 performs a process (emission of light or stop of emission) associated with the preset shape. Then, the drive unit 40 is caused to perform the operation.

[Modification 4]
If the wearable terminal 100 further includes a microphone, the arithmetic processing unit 60 can cause the drive unit 40 to emit light from the light source 30 or stop emission based on a specific sound. . Specifically, the arithmetic processing unit 60 performs voice recognition on the voice input from the microphone. Then, the arithmetic processing unit 60 identifies the words that have been uttered from the result of the voice recognition, and in response to the identified words (for example, “Guide ON”, “Guide OFF”, etc.) The emission of light from 30 is stopped or the emission is stopped.

[Modification 5]
Modification 5 is characterized by a mounting structure between the light source 30 and the imaging unit 20. FIG. 4 is a diagram showing a part of the configuration of the wearable terminal in the present embodiment.

  As shown in FIG. 4, in the second modification, the optical axis 32 of the light emitted from the light source 30 and then sequentially reflected by the total reflection mirror 71 and the half mirror 72, and the center of the imaging element of the imaging unit 20. The total reflection mirror 71 and the half mirror 72 are installed so that the normal line 22 coincides. For this reason, according to the modified example 2, the laser light from the light source 30 is positioned at the center of the imaging region of the imaging unit 20, and the user can specify the imaging region more easily.

  ADVANTAGE OF THE INVENTION According to this invention, a user can specify easily the imaging | photography area | region of the camera with which his head is mounted | worn. The present invention is useful for a wearable terminal worn on the head.

DESCRIPTION OF SYMBOLS 10 Display part 11 Screen 20 Imaging part 21 Image | photographing area | region 22 Normal line of the center of an imaging | photography area | region 30 Light source 31 Outgoing light 32 Optical axis of emitted light 40 Drive part 50 Data acquisition part 60 Arithmetic processing part 70 Sensor unit 100 Wearable terminal 200 Eyewear

Claims (5)

A wearable terminal that is directly or indirectly attached to the user's head,
A display unit for displaying information, an imaging unit for photographing the outside, and a light source;
The light source is arranged so that a photographing region of the imaging unit is specified by a user by light emitted from the light source,
Wearable terminal characterized by this. The light source is a laser light source capable of emitting laser light, and the emitted laser light is disposed so as to enter the imaging region of the imaging unit,
The wearable terminal according to claim 1. The display unit has a transmissive display panel.
The wearable terminal according to claim 1 or 2. A sensor capable of detecting the inclination of the optical axis of the light source;
An arithmetic processing unit that causes the light source to emit light or stop emitting light according to the inclination detected by the sensor;
The wearable terminal in any one of Claims 1-3. A human processor based on an image obtained from the imaging unit, and further comprising an arithmetic processing unit that causes the light source to stop emitting light when a human is detected as a result of the detection.
The wearable terminal in any one of Claims 1-3.

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