JP2011064841A - Image display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display a clear image for a passerby on a road surface or a floor surface. <P>SOLUTION: When a CPU 102 determines that the direction of an image displayed on the display screen of an image display unit 100 does not correspond to the direction of a passerby 20, the CPU 102 controls an image processing circuit 106 to reverse the direction of the image displayed on a display 116 (step S108). Consequently, the image is displayed in a proper direction for the passerby 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an image display system for displaying an image using an image display unit embedded in a road surface or a floor surface.

  2. Description of the Related Art Conventionally, as described in Patent Document 1, for example, a road surface advertisement system that can simultaneously output an image advertisement and a sound advertisement on a passage through which a person passes is known.

  In such a road advertisement system, a sensing sensor unit is provided on both sides of the display unit, and the microcomputer analyzes a signal input from the sensing sensor unit and reads out from the memory unit when it is determined that a person has entered the passage. The advertisement image data is output to the display unit, and the advertisement sound data read out from the memory unit is also output to the sound output unit to execute the advertisement by the image and sound.

JP 2002-91358 A

  However, in the technique described in Patent Document 1 described above, from the viewpoint of road surface advertisement, it has not been specifically considered how to display the advertisement image on the display unit.

  Accordingly, an object of the present invention is to solve the above-described problems of the prior art and provide an image display system capable of realizing an image display that is easy for a passing person to view when displaying an image on a road surface or a floor surface. There is.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1]
An image display system for displaying an image on a road surface or a floor surface on which a person can pass,
An image display unit that is embedded in the road surface or floor surface, has a display screen for displaying the image, and can change the orientation of the image displayed on the display screen;
A detection unit for detecting whether or not the person has passed a specific point located in front of the image display unit when the person passes on the road surface or floor surface toward the image display unit; ,
With
When the image display unit detects the passage of the person at the specific point by the detection unit, the orientation of the image displayed on the display screen does not correspond to the orientation of the person passing by The image display system is characterized in that the orientation of the image is changed so as to correspond.

  Thus, in the image display system of Application Example 1, when the detection unit detects that a person has passed a specific point, the orientation of the image displayed on the display screen in the image display unit is the orientation of the passing person. If not, the orientation of the image is changed so as to correspond.

  Therefore, according to the image display system of Application Example 1, the direction of the image displayed on the image display unit is changed according to the direction of the person who passes on the road surface or the floor surface, and the corresponding direction is set. Therefore, the orientation of the image is the opposite orientation, and an easy-to-see display image can be provided for a person who passes.

[Application Example 2]
The image display system according to claim 1,
The image display unit can change the orientation of the image displayed on the display screen to a first orientation and a second orientation opposite to the first orientation. ,
The detection unit is
Whether the person has passed the first specific point located in front of the image display unit when the person passes on the road surface or floor surface in the third direction toward the image display unit. A first sensor unit capable of detecting whether or not,
When the person passes on the road surface or the floor surface toward the image display unit in a fourth direction opposite to the third direction, a second position positioned in front of the image display unit A second detection unit capable of detecting whether the person has passed a specific point;
With
When the direction of the image and the direction of the person passing through correspond to the first direction and the third direction, and the second direction and the fourth direction,
The image display unit includes:
When the first sensor unit detects the passage of the person at the first specific point, when the orientation of the image displayed on the display screen is the second orientation, the first orientation To
When the second detection unit detects passage of the person at the second specific point, when the orientation of the image displayed on the display screen is the first orientation, the second orientation An image display system characterized by being changed to

  Thus, in the image display system of Application Example 2, for example, a person passes on the road surface or the floor surface in the third direction toward the image display unit, and the first sensor unit is the first specific point. In the image display unit, when the orientation of the displayed image is the second orientation, the orientation of the image is reversed so as to correspond to the third orientation, and the image is displayed in the first display. Will be displayed in the direction. On the contrary, for example, when a person passes on the road surface or the floor surface in the fourth direction toward the image display unit, and the second sensor unit detects the passage of the person at the second specific point, the image display is performed. In the unit, when the orientation of the displayed image is the first orientation, the orientation of the image is inverted to correspond to the fourth orientation, and the image is displayed in the second orientation.

[Application Example 3]
An image display system for displaying an image on a road surface or a floor surface on which a person can pass,
An image display unit that is embedded in the road surface or floor surface, has a display screen for displaying the image, and can change the orientation of the image displayed on the display screen;
A detection unit for detecting whether or not the person has passed a specific point located in front of the image display unit when the person passes on the road surface or floor surface toward the image display unit; ,
With
The image display unit starts displaying the image on the display screen and detects the orientation of the image displayed on the display screen when the detection unit detects the passage of the person at the specific point. An image display system that changes the orientation of the image so as to correspond to the orientation of the person who passes.

  As described above, in the image display system of Application Example 3, when the detection unit detects that a person has passed a specific point, the image display unit starts displaying an image on the display screen and is displayed on the display screen. The orientation of the image is changed so that the orientation of the image corresponds to the orientation of the person who passes.

  Therefore, according to the present embodiment, when the person who passes on the road surface or the floor surface approaches the image display unit in the image display unit, the display of the image is started with the orientation of the image corresponding to the direction of the person who passes. Therefore, the direction of the displayed image is the opposite direction for the person who passes, and a display image that is easy to see can be provided to the person who passes.

[Application Example 4]
In the image display system described in Application Example 3,
The image display unit can change the orientation of the image displayed on the display screen to a first orientation and a second orientation opposite to the first orientation. ,
The detection unit is
Whether the person has passed the first specific point located in front of the image display unit when the person passes on the road surface or floor surface in the third direction toward the image display unit. A first sensor unit capable of detecting whether or not,
When the person passes on the road surface or the floor surface toward the image display unit in a fourth direction opposite to the third direction, a second position positioned in front of the image display unit A second detection unit capable of detecting whether the person has passed a specific point;
With
When the direction of the image and the direction of the person passing through correspond to the first direction and the third direction, and the second direction and the fourth direction,
The image display unit includes:
When the first sensor unit detects the passage of the person at the first specific point, the display of the image is started on the display screen and the orientation of the image displayed on the display screen In the first orientation,
When the second detection unit detects the passage of the person at the second specific point, the display of the image is started on the display screen and the orientation of the image displayed on the display screen In the second orientation.

  Thus, in the image display system of Application Example 4, for example, a person passes on the road surface or the floor surface in the third direction toward the image display unit, and the first sensor unit is the first specific point. When the passage of a person is detected, the image display unit starts displaying an image in a first direction corresponding to the third direction. On the contrary, for example, when a person passes on the road surface or the floor surface in the fourth direction toward the image display unit, and the second sensor unit detects the passage of the person at the second specific point, the image display is performed. In the unit, the display of the image is started in the second direction corresponding to the fourth direction.

[Application Example 5]
In the image display system according to Application Example 3 or Application Example 4,
The image display system is characterized in that the image display unit ends the display of the image after a predetermined time has elapsed since the display of the image was started.

  As described above, in the image display system of Application Example 5, when a predetermined time has elapsed from the start of display, the display of the image is terminated, and thus power consumption can be reduced accordingly.

  Note that the present invention is not limited to the above-described aspects of the invention such as the image display system, but can also be realized as an aspect of the invention of a method such as an image display method.

1 is a cross-sectional view schematically showing a cross section of an image display system as a first embodiment of the present invention. FIG. 2 is a plan view showing the image display system in FIG. 1 as viewed from above. FIG. 2 is a plan view showing the image display system in FIG. 1 as viewed from above. It is a block diagram which shows the internal structure of the image display unit in FIG. FIG. 5 is an explanatory diagram showing a relationship between a reading order of image data from the image memory of FIG. 4 and an orientation of an image displayed on a display. It is a flowchart which shows the processing operation of the image display system in FIG. It is a flowchart which shows the processing operation of the image display system as 2nd Example of this invention. It is the top view which showed the image display system as a modification of this invention seeing from upper direction.

Hereinafter, embodiments of the present invention will be described in the following order based on examples.
A. First embodiment:
A-1. Example configuration:
A-2. Example operation:
A-3. Effects of the embodiment:
B. Second embodiment:
B-1. Example operation:
B-2. Effects of the embodiment:
C. Variation:

A. First embodiment:
A-1. Example configuration:
FIG. 1 is a cross-sectional view schematically showing a cross section of an image display system as a first embodiment of the present invention. As shown in FIG. 1, the image display system 10 of the present embodiment is provided on a road surface 30 on which a person 20 passes. Various road surfaces such as a sidewalk, an underground passage, an arcade street, an underground street, and the like can be considered as the road surface 30 on which the person 20 passes.

  The image display system 10 shown in FIG. 1 is arranged in the vicinity of the image display unit 100 embedded in a recess 40 opened on the road surface 30 and the front and rear of the image display unit 100 with respect to the direction in which the person 20 passes. The sensor units 200A and 200B are mainly configured. The sensor units 200A and 200B are connected to the image display unit 100 via cables 220, respectively. The image display unit 100 is covered with a transparent protective plate 300, and the protective plate 300 protects the image display unit 100 so that unnecessary pressure is not applied to the image display unit 100. As the protective plate 300, a tempered glass plate or a synthetic resin plate (a polycarbonate resin plate or an acrylic resin plate) can be used.

  2 and 3 are plan views showing the image display system in FIG. 1 as viewed from above. As shown in these drawings, each of the sensor units 200A and 200B includes a plurality of pressure sensors 210 having a tile shape. The image display unit 100 is arranged so that its display screen is substantially parallel to the road surface 30, and the display screen is displayed on the sensor unit 200A side (left side in FIG. 2 or FIG. 3). It is set so that it is on the lower side of the screen and the sensor unit 200B side (the right side of FIG. 2 or 3) is on the upper side of the display screen.

  FIG. 4 is a block diagram showing the internal configuration of the image display unit in FIG. As shown in FIG. 4, the image display unit 100 executes a computer program stored in a memory 104, which will be described later, to store a CPU 102 that performs various processes and controls, and the computer program. An image processing circuit that has a memory 104 for temporarily storing obtained data and information and an image memory 108 and performs desired image processing on image data to be described later using the image memory 108 106, an input / output (I / O) interface circuit 110 for exchanging data and information between the CPU 102 and various peripheral devices, a memory card 112 storing desired image data, and its memory A memory card reader 114 that is loaded with a card 112 and reads data stored in the memory card 112 , Based on the image data, and a, a display 116 to be displayed on the display screen of the desired image.

  Among these, the I / O interface circuit 110 is connected to a memory card reader 114, a display 116, and sensor units 200A and 200B, which are peripheral devices. As the display 116, various display devices such as a liquid crystal display, a plasma display, an organic EL display, a projection display, and a CRT can be used. In addition, the memory card 112 stores image data of moving images and still images having advertisements, news, and guidance as display contents as image data. The memory card 112 stores an administrator (see FIG. It is attached to the memory card reader 114 by a hand (not shown).

A-2. Example operation:
In the image display unit 100 shown in FIG. 4, the CPU 102 reads out the image data stored from the memory card 112 by the memory card reader 114 and inputs it to the image processing circuit 106 via the I / O interface circuit 110. The CPU 102 controls the image processing circuit 106 to write and read the input image data, for example, frame by frame to the image memory 108, and for the image data, for example, a desired image for improving the image quality. Apply processing. The CPU 102 inputs the image data output from the image processing circuit 106 to the display 116 via the I / O interface circuit 110, and displays an image on the display 116 based on the image data. Thus, a desired image is displayed on the display screen of the image display unit 100.

  In the present embodiment, the image display unit 100 can change the orientation of the image displayed on the display screen (that is, the orientation of the image displayed on the display 116). As a method for changing the orientation of the image, for example, the following method can be considered.

  FIG. 5 is an explanatory diagram showing the relationship between the reading order of the image data from the image memory of FIG. 4 and the orientation of the image displayed on the display. That is, when image data (for one frame) is read from the image memory 108 after the image data has been written to the image memory 108, as shown in FIG. As shown in FIG. 5A2, the image is displayed on the display screen of the display 116, and the orientation of the image is the direction of the arrow a with respect to the orientation of the display screen.

  On the other hand, as shown in FIG. 5 (b1), when reading out from the lower right of the image in the order shown by the arrow, the image is displayed on the display screen of the display 116 as shown in FIG. 5 (b2). The direction of the image is the direction of the arrow b opposite to the direction of the display screen in the case of FIG.

  As described above, in the image display unit 100, the CPU 102 controls the image processing circuit 106 to change the reading order of the image data from the image memory 108, thereby changing the orientation of the image displayed on the display 116. be able to.

  By the way, as described above, in the image display unit 100, the display screen orientation is such that the sensor unit 200A side (left side in FIG. 2 or 3) is the display screen lower side and the sensor unit 200B side (FIG. 2 or 3). Is set to be on the upper side of the display screen. Accordingly, when the image is displayed in the direction of the arrow a as shown in FIG. 5A2 with respect to the direction of the display screen, the image is displayed on the road surface 30 as shown in FIG. It will be. On the other hand, when the image is displayed in the direction of the arrow b as shown in FIG. 5B2, the image is displayed on the road surface 30 as shown in FIG. That is, the arrow a in FIG. 2 matches the arrow a shown in FIG. 5 (a2), and the arrow b in FIG. 3 matches the arrow a shown in FIG. 5 (b2).

  As shown in FIG. 2 or FIG. 3, each of the sensor units 200 </ b> A and 200 </ b> B detects the pressure when any one of the plurality of pressure sensors 210 constituting the sensor unit is stepped on by a person 20. The signal is output to the image display unit 100 via the cable 220. In the image display unit 100, the detection signal is input to the CPU 102 via the I / O interface circuit 110 as shown in FIG. Therefore, each of the sensor units 200A and 200B can detect whether or not the person 20 has passed over the sensor unit.

  For example, as shown in FIG. 2, when the person 20 is passing on the road surface 30 in the direction of arrow A, the person 20 first passes over the sensor unit 200A, and then passes over the image display unit 100. Passes and further passes over the sensor unit 200B. Accordingly, in this case, of the two sensor units 200A and 200B, the sensor unit 200A first detects the passage of the person 20.

  On the other hand, for example, as shown in FIG. 3, when the person 20 passes on the road surface 30 in the direction of arrow B which is the opposite direction to FIG. 2, the person 20 first detects the sensor unit. 200B, then passes over the image display unit 100, and further passes over the sensor unit 200A. Therefore, in this case, the sensor unit 200B first detects the passage of the person 20.

  Actually, since the direction of the person 20 passing on the road surface 30 varies, in the present embodiment, the sensor unit 200A first passes the person 20 out of the two sensor units 200A and 200B. In the case of detection, it is determined that the direction of the person 20 who is passing is uniformly the direction of the arrow A, and conversely, when the sensor unit 200B first detects the passage of the person 20 It is assumed that the direction of the person 20 who is passing is uniformly the direction of the arrow B.

  FIG. 6 is a flowchart showing the processing operation of the image display system in FIG. Therefore, when the process shown in FIG. 6 is started, the CPU 102 first determines whether any one of the sensor units 200A and 200B has detected the passage of the person 20 (step S102). . If none of the sensor units has detected the passage of the person 20, it waits until it is detected.

  Thereafter, when any one of the sensor units 200A and 200B detects the passage of the person 20 for the first time, the CPU 102 determines that the direction of the image displayed on the display screen of the image display unit 100 is the person who passes. It is determined whether it corresponds to the direction of 20 (step S104).

  At this time, as described above, when the sensor unit 200A first detects the passage of the person 20 out of the two sensor units 200A and 200B, the direction of the passing person 20 is the direction of the arrow A as described above. On the contrary, if the sensor unit 200B first detects the passage of the person 20, the direction of the passing person 20 is determined to be the direction of the arrow B.

  Therefore, for example, when an image is displayed on the display screen of the image display unit 100 in the direction of the arrow a as shown in FIG. 2, the sensor unit 200A first detects the passage of the person 20, Since the direction of the image is the direction of the arrow a, the direction of the passing person 20 is the direction of the arrow A, and the direction of the image and the direction of the passing person 20 are the same direction, it is determined that the two correspond. To do. Similarly, for example, when an image is displayed on the display screen of the image display unit 100 in the direction of the arrow b as shown in FIG. 3, the sensor unit 200B first detects the passage of the person 20. The direction of the image is the direction of the arrow b, the direction of the passing person 20 is the direction of the arrow B, and the direction of the image and the direction of the passing person 20 are the same. judge.

  As described above, when it is determined that the orientation of the image displayed on the display screen of the image display unit 100 corresponds to the orientation of the passing person 20, the CPU 102 displays the image on the display 116 as it is. (Step S106).

  On the other hand, for example, when an image is displayed on the display screen of the image display unit 100 in the direction of arrow a as shown in FIG. 2, the sensor unit 200B first detects the passage of the person 20, While the direction of the image is the direction of the arrow a, the direction of the person 20 who passes is the direction of the arrow B, and the direction of the image is opposite to the direction of the person 20 who passes the direction. judge. Similarly, for example, when an image is displayed on the display screen of the image display unit 100 in the direction of the arrow b as shown in FIG. 3, the sensor unit 200A first detects the passage of the person 20. Since the direction of the image is the direction of the arrow b, the direction of the person 20 who passes is the direction of the arrow A, and the direction of the image and the direction of the person 20 who passes the direction are opposite to each other. Judge that it is not.

  As described above, when it is determined that the orientation of the image displayed on the display screen of the image display unit 100 does not correspond to the orientation of the passing person 20, the CPU 102 controls the image processing circuit 106 to display the display 116. The direction of the image displayed on the screen is reversed (step S108). As a result, the image displayed in the direction of the arrow a is in the direction of the arrow b, and the image displayed in the direction of the arrow b is in the direction of the arrow a. Corresponds to the direction of the passing person 20.

  Next, as shown in FIG. 6, the CPU 102 determines whether or not a predetermined time has elapsed from the detection of the passage of the first person 20 by the sensor unit 200A or 200B (step S110). As a result, if the predetermined time has not yet elapsed, the system waits until it elapses. Thereafter, when a predetermined time has elapsed from the passage detection, the CPU 102 returns the process to the beginning.

A-3. Effects of the embodiment:
As described above, in this embodiment, for example, as shown in FIG. 2, when the person 20 passes on the road surface 30 in the direction of the arrow A and the sensor unit 200A first detects the passage of the person 20, In the image display unit 100, when the direction of the displayed image is the direction of the arrow b, the direction of the image is reversed so as to correspond to the direction of the arrow A, and the image is displayed in the direction of the arrow a. On the other hand, for example, as shown in FIG. 3, when the person 20 passes on the road surface 30 in the direction of the arrow B and the sensor unit 200 </ b> B first detects the passage of the person 20, the image is displayed on the image display unit 100. When the direction of the image to be displayed is the direction of the arrow a, the direction of the image is reversed so as to correspond to the direction of the arrow B, and the image is displayed in the direction of the arrow b. Therefore, according to the present embodiment, the orientation of the image displayed on the image display unit 100 is changed according to the orientation of the person 20 passing on the road surface 30 and becomes a corresponding orientation. The orientation of the image is the opposite orientation, and an easy-to-view display image can be provided to the passing person 20.

  In the present embodiment, the predetermined time in step S110 is the normal walking speed and when the person 20 is passing on the road surface 30, the image display unit first passes through one of the sensor units. It is preferable to set the time longer than the time required to pass 100. By setting the predetermined time to such a time, the orientation of the displayed image is changed from when the person 20 first passes through one of the sensor units until it passes over the image display unit 100. Therefore, the person 20 can surely visually recognize the image displayed on the image display unit 100.

B. Second embodiment:
In the above-described embodiment, the image display unit 100 always displays an image. However, in this embodiment, the image display unit 100 displays an image only when the sensor unit 200A or 200B detects the passage of the person 20. I have to.

  Note that the configuration of this embodiment is the same as that of the first embodiment, and a description thereof will be omitted.

B-1. Example operation:
FIG. 7 is a flowchart showing the processing operation of the image display system as the second embodiment of the present invention. When the processing shown in FIG. 7 is started, the CPU 102 first determines whether any one of the sensor units 200A and 200B has detected the passage of the person 20 (step S202). If none of the sensor units has detected the passage of the person 20, it waits until it is detected.

  Thereafter, when one of the sensor units 200A and 200B first detects the passage of the person 20, the CPU 102 determines whether or not the detected sensor unit is the sensor unit 200A ( Step S204). At this time, also in this embodiment, as in the case of the first embodiment, when the sensor unit 200A first detects the passage of the person 20 out of the two sensor units 200A and 200B, the traffic is passed. It is assumed that the direction of the person 20 is the direction of the arrow A, and conversely, when the sensor unit 200B detects the passage of the person 20 for the first time, the passing person 20 It is assumed that the direction of is the direction of arrow B. When the direction of the person 20 who passes is the direction of the arrow A, the direction of the image corresponding to the direction is the direction of the arrow a as in the case of the first embodiment. When the direction of the person 20 is the direction of the arrow B, the direction of the image corresponding to the direction is the direction of the arrow b.

  Therefore, if the detected sensor unit is the sensor unit 200A as a result of the determination in step S204, the display of the image on the display 116 is started and the direction of the image to be displayed corresponds to the direction of the arrow A. The direction of the arrow a is set (step S206). As a result, on the display screen of the image display unit 100, display of an image is started in the direction of the arrow a as shown in FIG.

  On the other hand, when the detected sensor unit is the sensor unit 200B, display of an image on the display 116 is started, and the direction of the image to be displayed is set to the direction of the arrow b corresponding to the direction of the arrow B ( Step S208). As a result, on the display screen of the image display unit 100, display of an image is started in the direction of the arrow b as shown in FIG.

  Next, as shown in FIG. 7, the CPU 102 determines whether or not a predetermined time has elapsed from the start of image display (step S210). As a result, if the predetermined time has not yet elapsed, the system waits until it elapses. Thereafter, when a predetermined time has elapsed from the start of display, the CPU 102 ends the display of the image on the display 116 (step S212), and returns the process to the beginning.

B-2. Effects of the embodiment:
As described above, in this embodiment, for example, as shown in FIG. 2, when the person 20 passes on the road surface 30 in the direction of the arrow A and the sensor unit 200A first detects the passage of the person 20, In the image display unit 100, image display is started in the direction of the arrow a corresponding to the arrow A. On the other hand, for example, as shown in FIG. 3, when the person 20 passes on the road surface 30 in the direction of the arrow B and the sensor unit 200B first detects the passage of the person 20, the image display unit 100 displays the arrow B Display of an image is started in the direction of the arrow b corresponding to. When the direction of the displayed image is the direction of the arrow a, the direction of the image is reversed so as to correspond to the direction of the arrow B, and the image is displayed in the direction of the arrow b. Therefore, according to the present embodiment, in the image display unit 100, when the person 20 passing on the road surface 30 approaches the image display unit 100, the image is displayed in the direction of the image corresponding to the direction of the person 20 passing by. Therefore, for the person 20 who passes, the orientation of the displayed image is the opposite direction, and an easy-to-view display image can be provided to the person 20 who passes. In addition, when a predetermined time has elapsed from the start of display, the display of the image is terminated, so that power consumption can be reduced accordingly.

  Note that, as the predetermined time, also in this embodiment, when the person 20 is traveling on the road surface 30 at a normal walking speed, after passing through one of the sensor units first, It is preferable to set the time longer than the time required to pass. By setting the predetermined time to such a time, since the person 20 first passes through one of the sensor units and passes over the image display unit 100, the image display is guaranteed. The person 20 can visually recognize the image displayed on the image display unit 100 with certainty.

G. Variation:
The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the scope of the invention.

  In the second embodiment described above, as described with reference to FIG. 7, the CPU 102 determines whether or not a predetermined time has elapsed from the start of image display (step S210). If the predetermined time has elapsed, the CPU 102 displays the image. It was supposed to end. However, instead of detecting the passage of the predetermined time from the start of display in this way, the CPU 102 detects whether the sensor unit different from the sensor unit that first detected the passage of the person 20 detected the passage of the person 20. If it is determined and the other sensor unit detects the passage of the person 20, the display of the image may be terminated.

  In the above embodiment, the image display unit 100 uses the method of changing the reading order of the image data from the image memory as the method of changing the orientation of the image displayed on the display screen. However, the present invention is not limited to this. Instead, the order of writing image data to the image memory may be changed. Further, the scanning order of images may be changed on the display.

  In the above embodiment, a pressure sensor is used to detect the passage of a person. However, the present invention is not limited to this. For example, an optical sensor, an ultrasonic sensor, a temperature sensor, etc. The passage of a person may be detected using this sensor. Alternatively, the passage of a person may be detected by photographing with a camera or the like and analyzing the photographed image. Further, the passage of a person may be detected at two or more places close to each other, and the direction of the passing person may be detected and used from the detection timing. Further, the direction of the person who passes may be detected by analyzing an image photographed by the camera.

  In the above-described embodiment, the image data is provided using the memory card. However, the image data may be provided using another storage medium. Alternatively, the image data may be provided from the outside via wired or wireless.

  In the above-described embodiment, the sensor unit is separate from the image display unit 100, but may be integrated. Further, although the protection plate 300 is separate from the image display unit 100, it may be integrated.

  In the above-described embodiment, the image display unit 100 is installed on the road surface. However, for example, the image display unit 100 may be installed on a floor surface of a hall, a lobby, a gymnasium, a stadium, or the like. Moreover, you may make it install in the floor surface of vehicles, such as the floor surface of a train and a bus | bath.

  In the above-described embodiment, two sensor units are arranged before and after the image display unit 100. However, in a place where the direction of traffic of the person 20 intersects, such as a crossroad or an intersection, for example, FIG. As shown in FIG. 8, four image display units 100 may be arranged on the front, rear, left and right sides thereof.

  FIG. 8 is a plan view showing an image display system as a modification of the present invention as viewed from above. In the image display system 40 which is this modified example, as shown in FIG. 8, the direction of traffic of the person 20 intersects at a crossroad, and the sensor units 200A, 200A, 200B, 200C, and 200D are arranged, respectively.

  In the case of this image display system 40 as well, in the image display unit 100 ′, as shown in FIG. 7, the person 20 passes on the road surface 30 in the direction of the arrow A as shown in FIG. When the passage of the person 20 is first detected, the image is displayed in the direction of the arrow a in the image display unit 100 ′. When the person 20 passes on the road surface 30 in the direction of the arrow B and the sensor unit 200B first detects the passage of the person 20, the image is displayed in the direction of the arrow b on the image display unit 100 '. When the person 20 passes on the road surface 30 in the direction of the arrow C and the sensor unit 200C first detects the passage of the person 20, the image is displayed in the direction of the arrow c on the image display unit 100 ′. To be. Further, when the person 20 passes on the road surface 30 in the direction of the arrow D and the sensor unit 200D first detects the passage of the person 20, the image is displayed in the direction of the arrow d on the image display unit 100. To.

  As described above, also in this modification, the direction of the image displayed on the image display unit 100 ′ is changed in units of 90 degrees according to the direction of the person 20 passing on the road surface 30, thereby allowing the person 20 to pass by. Since the orientation of the image is the facing direction, it is possible to provide an easy-to-see display image for the person 20 who passes.

DESCRIPTION OF SYMBOLS 10 ... Image display system 20 ... Person 30 ... Road surface 40 ... Image display system 100 ... Image display unit 102 ... CPU
DESCRIPTION OF SYMBOLS 104 ... Memory 106 ... Image processing circuit 108 ... Image memory 110 ... I / O interface circuit 112 ... Memory card 114 ... Memory card reader 116 ... Display 200A, 200B, 200C, 200D ... Sensor unit 210 ... Pressure sensor 220 ... Cable 300 ... Protective plate

Claims (5)

An image display system for displaying an image on a road surface or a floor surface on which a person can pass,
An image display unit that is embedded in the road surface or floor surface, has a display screen for displaying the image, and can change the orientation of the image displayed on the display screen;
A detection unit for detecting whether or not the person has passed a specific point located in front of the image display unit when the person passes on the road surface or floor surface toward the image display unit; ,
With
When the image display unit detects the passage of the person at the specific point by the detection unit, the orientation of the image displayed on the display screen does not correspond to the orientation of the person passing by The image display system is characterized in that the orientation of the image is changed so as to correspond. The image display system according to claim 1,
The image display unit can change the orientation of the image displayed on the display screen to a first orientation and a second orientation opposite to the first orientation. ,
The detection unit is
Whether the person has passed the first specific point located in front of the image display unit when the person passes on the road surface or floor surface in the third direction toward the image display unit. A first sensor unit capable of detecting whether or not,
When the person passes on the road surface or the floor surface toward the image display unit in a fourth direction opposite to the third direction, a second position positioned in front of the image display unit A second detection unit capable of detecting whether the person has passed a specific point;
With
When the direction of the image and the direction of the person passing through correspond to the first direction and the third direction, and the second direction and the fourth direction,
The image display unit includes:
When the first sensor unit detects the passage of the person at the first specific point, when the orientation of the image displayed on the display screen is the second orientation, the first orientation To
When the second detection unit detects passage of the person at the second specific point, when the orientation of the image displayed on the display screen is the first orientation, the second orientation An image display system characterized by being changed to An image display system for displaying an image on a road surface or a floor surface on which a person can pass,
An image display unit that is embedded in the road surface or floor surface, has a display screen for displaying the image, and can change the orientation of the image displayed on the display screen;
A detection unit for detecting whether or not the person has passed a specific point located in front of the image display unit when the person passes on the road surface or floor surface toward the image display unit; ,
With
The image display unit starts displaying the image on the display screen and detects the orientation of the image displayed on the display screen when the detection unit detects the passage of the person at the specific point. An image display system that changes the orientation of the image so as to correspond to the orientation of the person who passes. The image display system according to claim 3,
The image display unit can change the orientation of the image displayed on the display screen to a first orientation and a second orientation opposite to the first orientation. ,
The detection unit is
Whether the person has passed the first specific point located in front of the image display unit when the person passes on the road surface or floor surface in the third direction toward the image display unit. A first sensor unit capable of detecting whether or not,
When the person passes on the road surface or the floor surface toward the image display unit in a fourth direction opposite to the third direction, a second position positioned in front of the image display unit A second detection unit capable of detecting whether the person has passed a specific point;
With
When the direction of the image and the direction of the person passing through correspond to the first direction and the third direction, and the second direction and the fourth direction,
The image display unit includes:
When the first sensor unit detects the passage of the person at the first specific point, the display of the image is started on the display screen and the orientation of the image displayed on the display screen In the first orientation,
When the second detection unit detects the passage of the person at the second specific point, the display of the image is started on the display screen and the orientation of the image displayed on the display screen In the second orientation. In the image display system according to claim 3 or 4,
The image display system is characterized in that the image display unit ends the display of the image after a predetermined time has elapsed since the display of the image was started.

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