JP2001215920A - Display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display system with which both of primary information and the secondary information related to the primary information can be simultaneously viewed, whose movement by the mounting on a vehicle or the like becomes easy by saving space of the system and by making the system lightweight and whose operating efficiency can be enhanced by expanding the field of activities of an operator. SOLUTION: Plural primary information are displayed on a screen 2b which is arranged independently from an operator 3. Then, arbitrary primary information is instructed by displacing an instruction image 7 to be displayed on the screen 2 by an instruction signal from an input means 4c which is carried or attached by or to the operator 3. The secondary information stored by being related to the instructed primary information is displayed by a head-mounted display device 5 which is mounted on the operator 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display system using a head mounted display (HMD).

[0002]

2. Description of the Related Art As a display system used for monitoring various kinds of information at a radar site or a nuclear power plant, for example, a screen 101 of a large display device having a large screen 101 as shown in FIG. Some include a computer 102 that stores a plurality of pieces of primary information related to the outline and secondary information associated with each piece of primary information, and a stationary monitor 103 that is configured by a CRT display or the like connected to the computer 102. . By outputting an image signal from the computer 102 to a large display device, primary information and an instruction image 104 such as a cursor are displayed on the screen 101. When an operator 106 operates an input device 105 such as a mouse connected to the computer 102, the screen 10
1 is displaced to indicate necessary primary information, an image signal corresponding to the secondary information stored in association with the designated primary information is output from the computer 102, and the stationary monitor 103 Displays secondary information. Further, instead of displaying the secondary information on the monitor 103, the screen 101 is switched between a display state of the primary information and a display state of the secondary information.

[0003]

When secondary information is displayed on a stationary monitor as described above, a plurality of stationary monitors are required to use a display system by a plurality of operators, so that the system becomes large. Requires a large space and is difficult to mount on a vehicle or the like, which hinders movement of the display system, and furthermore, the operator can perform operations only in front of the monitor, so that his actions are restricted, and Operational efficiency decreases. Further, when the screen displayed by the large display device is switched between the display state of the primary information and the display state of the secondary information, both the primary information and the secondary information cannot be visually recognized at the same time.

An object of the present invention is to provide a display system capable of solving the above-mentioned problem.

[0005]

According to the present invention, there is provided a display system for storing a plurality of pieces of primary information, secondary information associated with each piece of primary information, and an image signal corresponding to the plurality of pieces of primary information. Means for outputting, based on an image signal corresponding to the plurality of primary information, a main display device for displaying the plurality of primary information on a screen arranged independently from an operator, and an instruction image is displayed on the screen. Means for outputting an image signal to the main display device, means for inputting an instruction signal for displacing the instruction image to indicate arbitrary information from among a plurality of primary information on the screen, Means for outputting an image signal corresponding to the secondary information stored in association with the primary information specified by the instruction image, and, based on the image signal corresponding to the secondary information, A Shimesuru head-mounted display device, the input means of the instruction signal is possible or mountable carried by the operator to mount the head-mounted display device. According to the configuration of the present invention, from the primary information displayed on the screen arranged independently of the operator, by the instruction image displaced based on the signal input from the input means carried or worn by the operator, Arbitrary primary information can be designated, and secondary information corresponding to the designated primary information can be displayed by the head-mounted display device worn by the operator. By displaying the secondary information on the head-mounted display device, the system is more compact than that displayed on a stationary monitor, so that space and weight can be reduced. Range constraints can be reduced.

Means for detecting the direction of the head or line of sight of the operator is provided, and the detected head or line of sight is displayed such that the instruction image is displayed at a position corresponding to the direction of the head or line of sight. It is preferable that the instruction signal can be output according to the direction. Thus, the operator can designate any secondary information from the primary information simply by moving the head or the line of sight, and the operability can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The display system shown in FIGS. 1 and 2 has a main control unit 1 composed of a host computer.
A main display device 2 connected to the main control device 1, a wearable computer 4 connected to the main control device 1 by wireless connection or wired connection for data communication and mounted on an operator 3, and a wearable computer 4 And a head-mounted display device 5 connected via a cable 15.

[0008] The main controller 1 includes a plurality of pieces of primary information,
Secondary information associated with each piece of primary information is stored, and an image signal corresponding to each piece of primary information is output. For example, at a radar site, map information indicating installation positions of a plurality of radars is stored as primary information, and detection information of each radar is stored as secondary information in association with the corresponding primary information.

In the present embodiment, the main display device 2 is a large display having a projector 2a for emitting image display light and a screen constituting a screen 2b arranged independently of an operator. A plurality of pieces of primary information are displayed on a screen 2 based on an image signal output from the device 1.
b. In addition, the main controller 1 displays the screen 2
In step b, an image signal is output to the main display device 2 so that the cursor 7 is displayed as an instruction image. Note that the main display device 2 may be configured by a large-sized CRT display, a plasma display, or the like.

The wearable computer 4 has a main body 4a including a memory, a CPU, and an input / output interface.
, A decision button switch 4b and a four-way button switch 4c. The four-way button switch 4c is composed of four switch pieces, and inputs an instruction signal for displacing the cursor 7 in four directions, up, down, left, and right on the screen 2b by the operation. In response to an instruction signal sent via wearable computer 4, main controller 1 outputs an image signal to displace cursor 7 on screen 2b. Thus, on the screen 2b, arbitrary information can be designated by the cursor 7 from among a plurality of pieces of primary information. The confirmation button switch 4b outputs a confirmation signal of the primary information specified by the cursor 7. In response to the confirmation signal sent via wearable computer 4, main controller 1 outputs an image signal corresponding to the secondary information stored in association with the primary information indicated by cursor 7. The wearable computer 4 is mounted on the waist of the operator 3 via a belt 13, whereby the four-way button switch 4 c, which is an instruction signal input unit, is mounted by the operator 3.

The head-mounted display device 5 has a holding section 11 that can be mounted on the head of the operator 3 and a display section 12 that is held by the holding section 11, and is sent from the wearable computer 4. The secondary information is displayed based on the image signal. In the present embodiment, the display unit 12 allows the image to be visually recognized only by one eye of the operator 3, but may be configured to allow both eyes to visually recognize the image. The holding unit 11 is in the form of a band that sandwiches the head of the operator 3. However, the form is not limited as long as the display unit 12 can be mounted on the head of the operator 3. May be in the form of a clip that can be attached to and detached from the spectacles to be worn. In the present invention, the head refers to a portion above the neck including the face. The display unit 12 connects the display unit 12a that emits image display light, the optical system 12b that changes the optical path of the image display light to guide the eyes of the operator 3, and the display unit 12a and the optical system 12b. Arm 12
c. The display unit 12a is connected to the cable 15
Is connected to the wearable computer 4 via the. The display unit 12a includes a backlight 32 composed of a fluorescent tube, an LED, and the like, a liquid crystal panel 35, a scattering plate 36 for making the light of the backlight 32 uniform and guiding the light to the liquid crystal panel 35, and a liquid crystal panel 35. , And an interface 39 connected to the liquid crystal driver 38, and image display light corresponding to the secondary information is emitted from the front surface of the liquid crystal panel 35 as shown by a dashed line. . The image display light is transmitted to the optical system 12.
The light path is changed by being reflected or diffracted at b, and guided to the eyes of the operator 3, whereby an image of the secondary information to be viewed is formed at a distance in front of the operator 3. The optical system 12b is composed of a combiner such as a half mirror or a hologram element that transmits light from the front, and the operator 3 can visually recognize not only an image of the secondary information but also an object existing in front through the optical system 12b.
The optical system 12b may include a condensing lens system. When the optical system 12b is disposed in front of one eye, primary information can be visually recognized by the other eye, so that the image display light is totally reflected. Thus, a mirror or the like that changes the optical path may be used.

According to the above configuration, the primary information displayed on the screen 2b arranged independently of the operator 3 is inputted from the four-way button switch 4c of the wearable computer 4 mounted by the operator 3. Based on the signal, any necessary primary information can be indicated by the cursor 7, and secondary information corresponding to the indicated primary information can be displayed by the head-mounted display device 5 worn by the operator 3. The secondary information is displayed on the head-mounted display device 5.
, The system is more compact than that displayed on a stationary monitor, so that space and weight can be reduced, and the operator 3 can visually recognize the primary information and the secondary information at the same time. The restriction on the range of action of the operator 3 can be reduced.

The present invention is not limited to the above embodiment. For example, as shown by a broken line in FIG. 2, a head motion sensor 21 for detecting the orientation of the head of the operator 3 is connected to the wearable computer 4, and the instruction signal is sent to the wearable computer in accordance with the detected orientation of the head. 4 to the main controller 1 so that the cursor 7 is displayed at a position corresponding to the direction of the head.
Further, instead of the head motion sensor 21, a sensor for detecting the direction of the line of sight from the movement of the eyeball of the operator 3 is connected to the wearable computer 4, and the instruction signal is sent to the wearable computer 4 in accordance with the detected direction of the line of sight. To the main control device 1 so that the cursor 7 is displayed at a position corresponding to the direction of the line of sight. Thereby, the operator 3 can designate any secondary information from the primary information only by moving the head or the line of sight, and the operability can be improved. Such a head or line-of-sight direction detecting means may be used together with the four-way button switch 4c operated by the operator's hand, or may be used alone.

The input means of the instruction signal may be any means that can be worn or carried by the operator. For example, a means provided with a mouse or a trackball carried by the operator in place of the four-way button switch of the above embodiment may be used. Good. In addition, when the wearable computer has a voice recognition function, an input means of an instruction signal can be configured by a microphone attached to the head-mounted display device for voice input. In this case, the wearable computer displaces a cursor. And outputs an instruction signal by recognizing the input voice for recognizing the primary information specified by the cursor, and outputs a determination signal. Also, the confirmation button switch as described above is eliminated,
The image signal corresponding to the secondary information stored in association with the primary information may be output only by instructing the primary information by the instruction image.

[0015]

According to the present invention, both primary information and secondary information associated with the primary information can be visually recognized at the same time, saving space and weight, and moving easily by mounting on a vehicle or the like. Thus, it is possible to provide a display system capable of improving the system operation efficiency by expanding the range of operation of the operator and further improving the operability.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a head-mounted display device in a display system according to an embodiment of the present invention.

FIG. 2 is a configuration explanatory diagram of a display system according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a configuration of a conventional display system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main control device 2 Main display device 4 Wearable computer 4c 4-way button switch 5 Head mounted display device 21 Head motion sensor

Claims (2)

[Claims] 1. A means for storing a plurality of pieces of primary information and secondary information associated with each piece of primary information; a means for outputting an image signal corresponding to the plurality of pieces of primary information; A main display device for displaying a plurality of pieces of primary information on a screen arranged independently of an operator based on a corresponding image signal, and an image signal on the main display device so that an instruction image is displayed on the screen. Means for outputting a command signal for displacing the designated image to designate arbitrary information from among a plurality of pieces of primary information on the screen, and a means associated with the primary information designated by the designated image. Means for outputting an image signal corresponding to the stored secondary information, and a head-mounted display device for displaying the secondary information based on the image signal corresponding to the secondary information. Input means No. 示信 is portable or display systems that are capable worn by the operator for mounting the head-mounted display device. Means for detecting the direction of the head or the line of sight of the operator, wherein the head or the detected head or the line of sight is displayed at a position corresponding to the direction of the line of sight. The display system according to claim 1, wherein the instruction signal can be output according to a direction of a line of sight.