Gate device

Abstract

To provide a gate device capable of displaying a highly visible indication of the result of allowing or disallowing a subject to pass through.SOLUTION: A gate device 100 includes: an IC reader 20 that reads information on a subject; a determination unit JD that makes a decision on whether or not to allow the subject to pass through based on the results of the reading by the IC reader 20; and an aerial display unit 30 that displays the determination result of the determination unit JD in the air. The gate device 100 can display highly visible results of the determination on whether passage is permitted or not by displaying in the air.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a gate device that determines whether a target person is allowed to pass through.

Background Art

[0002] For example, as one aspect of a gate device, there is known a ticket gate machine that enhances the visibility of image display guidance by projecting an image upward away from the housing (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above Patent Document 1 is a technique for enhancing the visibility of image display guidance for users who are far away, and does not enhance convenience, for example, regarding the determination of whether a target person is allowed to pass through.

[0005] The present invention has been made in view of the above points, and an object thereof is to provide a gate device capable of displaying a highly visible result regarding whether a target person is allowed to pass through at the time of passage.

Means for Solving the Problems

[0006] The gate device for achieving the above object includes a reading unit that reads information of a target person, a determination unit that determines whether passage is allowed based on the reading result of the reading unit, and an aerial display unit that performs an aerial display regarding the determination result of the determination unit.

[0007] In the above gate device, when indicating the determination result of whether passage is allowed, a highly visible display can be achieved by performing an aerial display.

[0008] In a specific aspect of the present invention, when the determination unit determines that passage is not permitted, the aerial display unit displays this fact in the passage space. In this case, it is possible to easily make the subject recognize that passage is not permitted through the aerial display.

[0009] In another aspect of the present invention, there is a flapless gate device, and the aerial display unit performs an aerial display at a position corresponding to the flap. In this case, it is possible to avoid a decrease in throughput due to the flap operation or a person attempting to pass through the flap from colliding and getting injured.

[0010] In yet another aspect of the present invention, the aerial display unit has a pair of configurations provided on the side portions of the housing forming the passage region, and performs a pair of left and right displays at positions corresponding to the flap. In this case, in the aerial display, it is possible to expect the same deterrent effect as in the case of having a flap while maintaining high visibility.

[0011] In yet another aspect of the present invention, there is a flap that opens and closes according to the determination result of the determination unit, and the determination unit determines whether to cause the aerial display unit to display with the flap open or to cause the aerial display unit to display after closing the flap. In this case, by combining the flap operation and the aerial display, it is possible to select a deterrent mode suitable for each situation while suppressing a decrease in throughput.

[0012] In yet another aspect of the present invention, the determination unit determines that there is insufficient balance based on the information read by the reading unit, and when the determination unit determines that there is insufficient balance, the aerial display unit displays this fact. In this case, it is possible to make the subject recognize that there is insufficient balance required for passage.

[0013] In yet another aspect of the present invention, the aerial display unit performs an aerial display by projection using retroreflection. In this case, simple and reliable aerial display is possible within a limited space.

[0014] In yet another aspect of the present invention, the air display unit performs a display for prohibiting passage for one side in order to prioritize one side in response to passage detection for entry from both directions. In this case, in a mode where entry from both directions is possible, smooth passage can be maintained and throughput can be improved.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Modes for Carrying Out the Invention

[0016] 〔First Embodiment〕 Hereinafter, with reference to FIG. 1 and the like, an example of the gate device of the present embodiment will be described. FIGS. 1(A) and 1(B) are conceptual perspective views showing the operation state of the gate device 100 of the present embodiment. On the other hand, FIGS. 1(C) and 1(D) are diagrams of a comparative example with respect to FIGS. 1(A) and 1(B).

[0017] For example, as shown in FIG. 1(A), the gate device 100 of the present embodiment is composed of a pair of a main unit 11 and a slave unit 12 that are arranged at intervals so that a user can pass through. The gate device 100 can be applied to various places that require confirmation when passing through. As a typical example, it is assumed to be installed at a ticket gate for entering and leaving a railway station platform (inside the station).

[0018] Also, here, in the figure of the conceptual perspective view shown as FIG. 1(A), as indicated by the arrow AR1, between the main unit 11 and the slave unit 12 from the front side toward the back side, it is assumed that a target person (not shown), who is a user of the gate device 100, advances. That is, the arrow AR1 indicates the advancing direction of the target person. The main unit 11 is located on the right side in the advancing direction, and the slave unit 12 is located on the left side in the advancing direction. An IC reading unit 20 is provided on the front side of the main unit 11.

[0019] When passing through, the user, that is, the target person for whom passage permission or non - permission is to be determined, holds the IC card CC in front of the IC reading unit 20 to allow the IC reading unit 20 to read information about himself / herself. On the other hand, the gate device 100 determines whether passage is permitted or not from the read information. When it is determined that the state allows passage, the gate device 100 maintains the state shown in FIG. 1(A) and allows the target person to pass. On the other hand, when it is determined that the state is non - passable, such as when there is a problem such as fraud in the information read by the IC card CC or the IC card CC is not held in front of the reading unit, a pair of display images GGa, GGb indicating that passage is not permitted, as shown in FIG. 1(B), are presented in the air.

[0020] As described above, the gate device 100 is of the flapless type. That is, in the gate device 100x shown as a comparative example in FIGS. 1(C) and 1(D), in the main unit 11x and the slave unit 12x, a flap FP is provided as an opening / closing gate constituted by a pair of gate doors 11d and 12d that are rotatably attached. In contrast, the gate device 100 of the present embodiment is not provided with such a flap FP. In the gate device 100 of the present embodiment, as can be seen by comparing FIG. 1(B) with FIG. 1(D), instead of stopping the subject by opening and closing the flap, a pair of left and right displays are provided at positions corresponding to the flap to indicate that passage is impossible, thereby stopping the subject.

[0021] Hereinafter, with reference to FIG. 2 and the like, the configuration and functions of each part of the gate device 100 for performing the above-described operations will be described. FIG. 2(A) is a conceptual front view of the gate device 100, and FIG. 2(B) is a side view of the main unit 11 of the gate device 100. Further, FIG. 2(C) is a side view as a comparative example with respect to FIG. 2(B), that is, a view showing the main unit 11x of a gate device 100x having a flap as a comparative example with respect to the flapless gate device 100 of FIG. 2(B). FIG. 3 is a block diagram showing a configuration example for explaining the functional side of the gate device 100.

[0022] As shown in FIGS. 2(A) and 2(B), the gate device 100 houses each part constituting the gate device 100 in a housing CSa that forms the exterior of the main unit 11 and a housing CSb that forms the exterior of the slave unit 12. Specifically, first, in addition to the above-described IC reading unit 20, the main unit 11 is provided with a main unit side air display unit 30a, a main unit side sensor unit 40a, and a processing unit 50. The main unit side sensor unit 40a is composed of an entrance side sensor Ena and an exit side sensor Exa. As shown in FIG. 2(B), the entrance side sensor Ena is located on the front side in the traveling direction and detects the entry of a subject into the passage of the gate device 100. On the other hand, the exit side sensor Exa is located on the rear side in the traveling direction and detects the exit of a subject from the passage of the gate device 100.

[0023] On the other hand, as shown in FIG. 2(A), the slave device 12 is provided with a slave-side aerial display unit 30b and a slave-side sensor unit 40b. The slave-side sensor unit 40b is composed of an entrance-side sensor Enb and an exit-side sensor Exb. The entrance-side sensor Enb is arranged at a position corresponding to the entrance-side sensor Ena provided in the master device 11, and is configured as a pair for transmitting and receiving infrared rays, for example, to detect the passage of a target person based on the interruption of infrared rays. Similarly, the exit-side sensor Exb is arranged at a position corresponding to the exit-side sensor Exa provided in the master device 11, and is configured as a pair for transmitting and receiving infrared rays to detect the passage of a target person. In the following, the master-side sensor unit 40a and the slave-side sensor unit 40b are collectively referred to as a human presence sensor 40.

[0024] The master-side aerial display unit 30a and the slave-side aerial display unit 30b are configured as a pair. Among the pair of display images GGa and GGb displayed in the air illustrated in FIG. 1(B), the right display image GGa is projected by the master-side aerial display unit 30a, and the left display image GGb is projected by the slave-side aerial display unit 30b. Regarding image projection, as shown in FIG. 2(B), for example, the master-side aerial display unit 30a is provided on the side of the housing CSa that forms the passage area in the master device 11, and performs image projection so as to form an image at an image formation planned position APa assumed as a predetermined position in the passage space from a window WNa provided along the side surface of the housing CSa. Although not shown or described, the slave-side aerial display unit 30b in the slave device 12 also has a similar configuration and performs image projection. In the following, the master-side aerial display unit 30a and the slave-side aerial display unit 30b with a pair configuration are collectively referred to as an aerial display unit 30. That is to say, the aerial display unit 30 is configured as a pair provided on the sides of the housings CSa and CSb that form the passage area, and can be said to perform a pair of left and right displays at positions corresponding to the flaps.

[0025] Here, as shown by comparing the gate device 100 provided with the aerial display unit 30 (host-side aerial display unit 30a) shown in FIG. 2(B) and the gate device 100x provided with no aerial display unit 30 (host-side aerial display unit 30a) but with a gate door 11d shown in FIG. 2(C), the window WNa is provided at a position corresponding to the gate door 11d. Accordingly, when it is determined that passage is not permitted in the gate device 100, the display image GGa indicating that fact is shown as an aerial display at a position in front of the IC reading unit 20 and corresponding to the flap in the passage space.

[0026] As shown in FIG. 2 or FIG. 3, the processing unit 50 is composed of various circuit elements, a CPU, etc., and is connected to each of the above-described units. That is, the processing unit 50 is connected to the IC reading unit 20, the aerial display unit 30, and the human sensor 40, and performs various processing operations and transmits command signals according to input signals from each unit. Further, as shown in FIG. 3, the processing unit 50 is connected to a camera 70 which is an imaging unit for imaging the periphery of the gate device 100, and acquires information obtained by imaging as necessary. As described above, the processing unit 50 performs various processing and operation controls, and functions as a determination unit JD for determining whether passage is permitted based on the reading result of the IC reading unit 20 which is a reading unit for reading the information of the target person, for example.

[0027] Note that the camera 70 may be part of the gate device 100 or a device other than the gate device 100. Here, the gate device 100 (processing unit 50) is assumed to be able to capture an image of the face of the target person by the camera 70 when passing through in order to monitor the person attempting to pass through the gate. When it is a device other than the gate device 100, the camera 70 is assumed to be, for example, one of a plurality of surveillance cameras that monitor the inside of the station or a part thereof and that monitor the gate device 100 and its surroundings. The gate device 100 (processing unit 50) can obtain necessary information (such as a face image of the target person) by making use of these. Regarding the timing of saving the image data such as the face image of the target person obtained by the camera 70 in the gate device 100 (processing unit 50), various modes are conceivable. Typically, if there is an opening / closing flap such as passing without using the IC card CC or being determined to have used an illegal IC card CC, it is considered to store the data as such when it corresponds to a situation that must be stopped. Also, in such a case, for example, it is assumed that the corresponding action of transmitting the image data to the department in charge of managing the gate device 100 is taken.

[0028] Hereinafter, an example of the aerial display unit 30 will be described with reference to the conceptual diagram shown as FIG. 4. As described above, the aerial display unit 30 has a pair of left and right configurations including the host-side aerial display unit 30a and the slave-side aerial display unit 30b, and the host-side aerial display unit 30a projects the display image GGa on the right side, and the slave-side aerial display unit 30b projects the display image GGb on the left side. For example, the host-side aerial display unit 30a includes a light source unit 31a, a reflection / transmission unit 32a, and a retroreflective unit 33a.

[0029] The light source unit 31a is composed of, for example, an LED light source or the like, and forms an image to be projected at the position of the light source image plane SIa. That is, the light source light GLa is emitted from each point (light source point) in the position state of the light source image plane SIa.

[0030] The reflection / transmission part 32a is composed of, for example, a half mirror, which reflects a part of the incident light and transmits the other part.

[0031] The retroreflective part 33a is composed of, for example, a sheet member formed by laying spherical bead members or pyramid-shaped reflective members in a matrix, and is a member that performs so-called retroreflection to fold the incident light back in the same direction.

[0032] Hereinafter, the image formation by the light source light GLa in the aerial display unit 30 (the host-side aerial display unit 30a) will be described along the optical path. First, the light source light GLa emitted from the position of the light source image plane SIa in the light source unit 31a is, in the reflection / transmission part 32a, partially reflected, so that the optical path is bent toward the retroreflective part 33a. Then, the component incident on the retroreflective part 33a is, by retroreflection, emitted from the retroreflective part 33a in the direction of folding back the incident optical path and heads toward the reflection / transmission part 32a again. Next, the light source light GLa is, in the reflection / transmission part 32a, partially transmitted and is thus emitted outward from the aerial display unit 30 (the host-side aerial display unit 30a). That is, the reflection / transmission part 32a or a part thereof functions as the window WNa. As described above, for example, the component of the light source light GLa emitted from a point on the light source image plane SIa forms an image at the image formation planned position APa, which is the corresponding position, and as a result, the display image GGa exists as a hollow image at that position and is visually recognized by the subject.

[0033] It should be noted that the same applies to the light source unit 31b, the reflection / transmission part 32b, and the retroreflective part 33b that constitute the slave-side aerial display unit 30b. That is, the light source light GLb emitted from the position of the light source image plane SIb is emitted from the window WNb to the outside of the slave-side aerial display unit 30b, and the display image GGB is visually recognized by the subject as a hollow image at the image formation planned position APb, which is a predetermined corresponding position.

[0034] In addition, regarding the content displayed as the display images GGa and GGb, various modes are possible other than those indicating impassability described above. For example, as in a modified example shown in FIG. 5, as an operation of the aerial display by the gate device 100, it is also possible to adopt a mode of displaying that the remaining balance charged in the IC card CC is insufficient. That is, in the processing unit 50 as the determination unit JD, based on the information read by the IC reading unit 20, a determination is made regarding insufficient balance, and when it is determined that the balance is insufficient, the aerial display unit 30 may display to that effect. In the case of a minor defect such as forgetting to charge the above-mentioned IC card CC, for example, charging an amount more than the shortage later will suffice. Typically, at the station platform ticket gate, it is not deliberately stopped when entering (when passing through the entrance), and it is made passable, and at that time, it is conveyed that the charge is insufficient. If the user charges before exiting (when passing through the exit), it is possible to adopt a mode of allowing passage without problems.

[0035] As described above, the gate device 100 can perform various displays according to the determination result in the determination unit JD, not limited to the case of indicating a stop.

[0036] As described above, the gate device 100 of the present embodiment includes an IC reading unit 20 that is a reading unit for reading the information of the target person, a determination unit JD that determines whether to allow passage based on the reading result of the IC reading unit 20, and an aerial display unit 30 that performs an aerial display regarding the determination result of the determination unit JD. In the gate device 100, when indicating the determination result of whether to allow passage, an aerial display can be performed to achieve high visibility. Further, in the present embodiment, since it is a flapless type, smoother passage (travel) can be achieved. That is, it is possible to improve the throughput regarding the flow of people. Furthermore, it is also possible to avoid a situation where a person trying to pass hits the flap and gets injured. In addition, by promoting the elimination of mechanical parts, it is expected to reduce the maintenance load.

[0037] 〔Second Embodiment〕 Hereinafter, an example of the gate device according to the second embodiment will be described with reference to FIG. 6 and the like. FIG. 6 is a block diagram for explaining a configuration example of the gate device 200 according to the present embodiment, and is a figure corresponding to FIG. 3. FIGS. 7(A) to 7(D) are conceptual perspective views showing the operation state of the gate device 200, and are figures corresponding to FIGS. 1 and 5. Further, FIGS. 8(A) and 8(B) are conceptual side views showing the operation state of the gate device 200, and are figures corresponding to FIG. 2(B). Note that FIG. 8(A) shows the state when gate passage is permitted, and FIG. 8(B) shows the state when gate passage is not permitted.

[0038] For example, as is clear from comparing FIGS. 6, 7, or 8 with FIGS. 1 - 3 and the like, the gate device 200 of the present embodiment is different from the gate device 100 in the first embodiment in that it has a flap FP. As shown in FIGS. 8(A) and 8(B), with respect to the traveling direction indicated by the arrow AR1, the in-air display unit 30 (the host-side in-air display unit 30a) is located on the front side of the flap FP (the gate door 11d). As shown in FIG. 8(A), even when the flap FP is in an open state (passable), and as shown in FIG. 8(B), even when the flap FP is in a closed state (not passable), the display by the in-air display unit 30 is visible to the user (the person being monitored).

[0039] Also, for example, as shown in FIGS. 7(A) and 7(B) and the like, the flap FP is composed of a pair of gate doors 11d and 12d that are rotatably attached to the host 11 and the slave 12, and like the in-air display unit 30, it operates to open and close under the control of the processing unit 50. That is, the flap FP opens and closes according to the judgment result of the judgment unit JD. Also, for example, as shown in FIG. 7(B) and the like, the display images GGa and GGb projected by the in-air display unit 30 correspond to the positions of the gate doors 11d and 12d in a state where the passage is closed (a closed state indicating non-passage), and are formed at a position slightly in front of the gate doors 11d and 12d and deeper than the IC reading unit 20. By adopting such a display mode, a situation that is easy for the user (the person being monitored) of the gate device 100 to see can be created.

[0040] In particular, in this embodiment, when determining the display mode on the in-air display unit 30 in the determination unit JD, for example, as shown in an example in FIG. 7(C), whether to cause the in-air display unit 30 to perform a display with the flap FP open (passable), or, as shown in examples in FIGS. 7(B) and 7(D), whether to cause the in-air display unit 30 to perform a display after closing the flap FP (not passable) can be selected. Note that various matters are assumed as factors for differences in determination results. For example, when there is a detection by the human sensor 40 while attempting to enter without presenting the IC card CC in the first place, or when unauthorized use of the IC card CC is detected, a mode can be considered in which, as illustrated in FIG. 7(B), after closing the flap FP (not passable), display images GGa, GGb indicating non-passability are formed by the in-air display unit 30. On the other hand, for minor matters such as insufficient remaining balance charged on the IC card CC as illustrated in FIG. 7(C), a mode can be considered in which, without going so far as to make it non-passable, display images GGa, GGb indicating that fact are formed by the in-air display unit 30 for the purpose of drawing attention. Note that in the example of FIG. 7(C), the display operation when attempting to enter from outside the station platform (inside the premises) at the entrance of the station ticket gate is shown. On the other hand, for example, even in a case where, in the same way, a mode is adopted in which insufficient charge remaining is detected and display images GGa, GGb indicating that fact are formed by the in-air display unit 30, when attempting to exit from inside the station platform (inside the premises) to the outside at the exit of the station ticket gate as shown in the case of FIG. 7(D), even if only insufficient charge remaining is detected as described above, the display may be performed after closing the flap FP (not passable).

[0041] Hereinafter, with reference to the flowchart shown as FIG. 9, an example of a series of operations of the gate device 200 will be described.

[0042] When the processing unit 50 as the determination unit JD receives the detection by the human presence sensor 40 (entrance side sensors Ena, Enb) (step S101), the IC reading unit 20 checks whether an IC touch, that is, an IC card CC is being swiped (step S102).

[0043] If the check is not made in step S102 (step S102: No), the processing unit 50 closes the flap FP (not passable) (step S103). At this time, the air display unit 30 also projects the display images GGa, GGb indicating non-passability illustrated in FIG. 7(B) and the like.

[0044] After the processing in step S103, the processing unit 50 performs various necessary processes and returns to the operation from step S101 again.

[0045] On the other hand, if an IC touch is confirmed in step S102 (step S102: Yes), authentication regarding the IC card CC is performed (step S104). If proper authentication is made (step S104: Yes), the flap FP is kept open (passable), and when passing is detected by, for example, the human presence sensor 40 (exit side sensors Exa, Exb), the series of processes of the gate device 100 is terminated. In this case, the display by the air display unit 30 is not particularly made.

[0046] If proper authentication regarding the IC card CC is not made in step S104 (step S104: No), the processing unit 50 further determines whether to permit passage (step S105). More specifically, depending on the content determined to be improper, as shown in an example in FIG. 7(C), the processing unit 50 decides whether to only display a warning indicating insufficient balance by the air display unit 30 with the flap FP kept open (passable), or as shown in examples in FIGS. 7(B) and 7(D), to close the flap FP (not passable) while displaying by the air display unit 30 to stop the subject.

[0047] In step S105, if it is determined not to permit passage (step S105: No), the processing unit 50 closes the flap FP (no passage allowed) (step S106). At this time, the air display unit 30 also projects display images GGa and GGb indicating this fact together.

[0048] After the processing in step S106, the processing unit 50 performs various necessary processes and returns to the operation from step S101 again.

[0049] On the other hand, if it is assumed to permit passage in step S105 (step S105: Yes), by projecting on the air display unit 30 display images GGa and GGb indicating matters not authenticated as appropriate, such as insufficient balance as shown in an example in FIG. 7(C), while keeping the flap FP open (passage possible) (step S107), it conveys to the subject that when passage completion is detected, for example, by the human sensor 40 (exit side sensors Exa and Exb), the gate device 100 ends a series of processes.

[0050] Among the above, when it becomes a mode of closing the flap FP (no passage allowed) to stop the subject as in step S103 or step S106, the processing unit 50 may also perform a process for storing the image data in the camera 70. That is, it is conceivable to store the face image etc. of the subject as data and transmit the image data to the department in charge as necessary.

[0051] As described above, also in the gate device 200 of the present embodiment, when indicating the determination result of passage permission or not, by performing air display, visibility can be made high. In particular, in the present embodiment, in combination with the determination of whether to perform the display images GGa and GGb by the air display unit 30, and if display is performed, further about the display content, and whether to open (passage possible) or close (no passage allowed) the flap FP (open / close operation), it is possible to perform more appropriate management of passage permission or not according to the determination content of passage permission or not.

[0052] 〔Third Embodiment〕 Hereinafter, with reference to FIG. 10, an example of the gate device according to the third embodiment will be described. Among FIGS. 10(A) to 10(D), FIGS. 10(A) and 10(B) are conceptual side views for explaining a configuration example of the gate device 300 of the present embodiment, and FIGS. 10(C) and 10(D) are conceptual perspective views. The gate device 300 of the present embodiment can allow entry not only from the direction indicated by arrow AR1 but also from the direction indicated by arrow AR2, which is opposite to the direction indicated by arrow AR1, that is, entry from both directions (passage from both directions) is possible. In such a configuration, the gate device 300 is different from the gate device 100 and the like in the first embodiment in that it has a configuration for dealing with the case where people approach from both directions.

[0053] In order to achieve the above-described mode, in the gate device 300 of the present embodiment, not only the IC reading unit 20 (20α) is provided in the host 11, but also the IC reading unit 20 (20β) is provided in the slave 12, and the master and slave are interchangeable. That is, for entry from arrow AR1, the host 11α (11) functions as the host, and information is read by the IC reading unit 20α (20) provided in the host 11α. In this case, the slave 12 functions as the slave 12α. On the other hand, for entry from arrow AR2, the slave 12 functions as the host 11β, and information is read by the IC reading unit 20β (20) provided in the host 11β (12).

[0054] Regarding the aerial display unit 30, for example, two sets of the ones illustrated in FIG. 4 can be prepared so as to enable display for entry from arrow AR1 and display for entry from arrow AR2, and thus configured. Here, in the figure, the display position for entry from arrow AR1 is set as the image formation planned position AP1, and the display position for entry from arrow AR2 is set as the image formation planned position AP2.

[0055] In addition to the above, in order for the gate device 300 to be able to respond when a person approaches from the two-way directions indicated by the arrows AR1 and AR2, as shown in FIGS. 10(A) and 10(B), the person passage detection sensors SN1 and SN2 are provided at positions on the front side by distances L1 and L2 in the directions of the arrows AR1 and AR2 with respect to the installation positions of the main bodies of the gate device 300, that is, the housings CSa and CSb. The distance L1 and the distance L2 are of equal magnitude, that is, L1 = L2. As shown in the figure, when persons PE1 and PE2 approach from both directions, the gate device 300 (processing unit 50) preferentially treats the one side that first detects the passage among the person passage detection sensors SN1 and SN2 as the one that is closer, and for the other side that is relatively farther away, a display for prohibiting passage is performed. Here, in one example, the state before passage detection in the person passage detection sensors SN1 and SN2 is shown in white, and the state after passage detection is shown in black. In the example shown in FIG. 10(A), it is detected that the person RE2 moving in the direction of the arrow AR2 has passed the person passage detection sensor SN2 earlier than the person RE1 moving in the direction of the arrow AR1, and it is determined that the person RE2 is approaching the gate device 300. In this case, as shown in FIG. 10(B), the gate device 300 (aerial display unit 30) displays an image indicating passage prohibition at the image formation planned position AP1 for entry from the arrow AR1 among the image formation planned position AP1 and the image formation planned position AP2. That is, a pair of display images GGa and GGb indicating that passage is not possible as shown in FIG. 10(C) are displayed in the air (image formation planned position AP1). Such image display is performed at a point in time before the person RE1 reaches the IC reading unit 20(20α) provided in the gate device 300, as shown in FIG. 10(B) or FIG. 10(D), so that the person RE1 can be made aware that passage is not possible before attempting to pass through the gate device 300. On the other hand, for the prioritized person RE2, the passage process is performed by holding the IC card CC possessed by the person in front of the IC reading unit 20(20β) as usual.Also, at this time, a pair of display images GGa and GGb that are imaged and visible at the image formation planned position AP1 can be seen from a person RE1 moving in the direction of arrow AR1 as shown in FIG. 10(C) according to the characteristics of the viewing angle control of the aerial display unit 30 (see FIG. 4 for example). On the other hand, even if the imaging is performed at a position shown by a broken line in FIG. 10(D), this cannot be seen from a person RE2 moving in the direction of arrow AR2. Therefore, it is possible to perform the passage process for the person RE2 without causing any discomfort regarding the display for the person RE2.

[0056] As described above, also in the gate device 300 of the present embodiment, when indicating the determination result of whether passage is permitted or not, by performing an aerial display, the visibility can be made high. In particular, in the present embodiment, by determining the priority side based on the person passage detection sensors SN1 and SN2, in a mode that enables entry from both directions, the passage can be maintained smoothly, and the throughput can be improved.

[0057] Hereinafter, with reference to the block diagram shown as FIG. 11, the configuration of the gate device 100 of the first embodiment, the gate device 200 of the second embodiment, or the gate device 300 of the third embodiment will be outlined and described.

[0058] In the above-described gate device 100, gate device 200, or gate device 300, for example, in the IC reading unit 20 as the reading unit RD, when reading the information of the target person (for example, reading the information of the IC card CC), in the processing unit 50 as the determination unit JD, a determination of whether passage is permitted or not is made based on the reading result in the reading unit RD. Further, the processing unit 50 causes each unit to perform various operations according to the determination result of whether passage is permitted or not. At this time, the processing unit 50 causes the aerial display unit 30 to perform an aerial display according to the determination result in the processing unit 50. As described above, in the gate devices 100, 200, and 300, when indicating the determination result of whether passage is permitted or not in the processing unit 50, by performing an aerial display by the aerial display unit 30, the visibility regarding whether passage is permitted or not can be made high for the target person.

[0059] 〔Others〕 The present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the gist thereof.

[0060] First, in the above, the case of using an IC card for reading the information of the target person is taken as an example. However, the mode of information reading is not limited to this, and various modes such as reading a two-dimensional code can be adopted. For example, if information reading is performed by face authentication, the target person (user) can have the information read on the gate device side without taking any particular action. In such a case, instead of providing something like the IC reading unit 20, it is possible to adopt a mode in which various processes are performed based on the face image acquired by, for example, the camera 70.

[0061] Further, in the above, as an example of the mode of performing aerial display by projection using retroreflection for the aerial display unit 30, various modes are assumed for those using retroreflection. For example, it is assumed to use an aerial display known as AIRR (aerial imaging by retro-reflection). For example, as the light source lights GLa and GLb, polarized light is used, and the reflection / transmission units 32a and 32b are replaced with polarization beam splitters (PBS) instead of half mirrors. For the retroreflection units 33a and 33b, it is considered possible to provide a λ / 4 phase plate in the previous stage to achieve a configuration with higher light utilization efficiency.

[0062] Furthermore, as the aerial display in the aerial display unit 30, it is also conceivable to use a mode other than the one using retroreflection. Specifically, it is also possible to adopt a mode in which something like water vapor (fog) is generated at a predetermined position in the passage path and used as a screen for image projection. Furthermore, regarding the light source or the like as the aerial display unit 30, it is also conceivable to adopt a configuration in which it is arranged not only on the side surface side but also on the floor or the ceiling. Furthermore, regarding the position (image formation position) where the aerial display is performed, in addition to the position corresponding to the flap, it can be various places that are easy to notice. Also, in addition to the position corresponding to the flap, it is also conceivable to perform aerial display at other prominent locations.

Explanation of Signs

[0063] 11…Main unit, 11d, 12d…Gate doors, 11x, 11α, 12α…Main units, 12, 11β, 12β…Slave units, 12x…Slave unit, 20, 20α, 20β…IC reading unit, 30…Aerial display unit, 30a…Main unit side aerial display unit, 30b…Slave unit side aerial display unit, 31a, 31b…Light source units, 32a, 32b…Reflection and transmission units, 33a, 33b…Retroreflective units, 40…Human sensor, 40a…Main unit side sensor unit, 40b…Slave unit side sensor unit, 50…Processing unit, 70…Camera, 100, 200…Gate devices, 100x…Gate device, AR1, AR2…Arrows, CC…IC card, CSa, CSb…Housings, Ena, Enb…Entrance side sensors, Exa, Exb…Exit side sensors, FP…Flap, GGa, GGb…Display images, GLa, GLb…Light source light, JD…Judgment unit, PE1, PE2…Persons, RD…Reading unit, SIa, SIb…Light source image planes, WNa, WNb…Windows

Claims

1. A reading unit that reads information of a subject; a determination unit that determines whether or not passage is permitted based on a result of reading by the reading unit; an aerial display unit for aerial display of the determination result of the determination unit; A gate device comprising:

2. 2. The gate apparatus according to claim 1, wherein the aerial display unit displays, when the determining unit determines that passage is not permitted, a message to that effect in the passage space.

3. A flapless gate device, 2. The gate apparatus according to claim 1, wherein the aerial display unit performs an aerial display at a flap-equivalent position.

4. 4. The gate device according to claim 3, wherein the aerial display unit is a pair provided on a side of a housing that defines a passage area, and displays a pair of left and right displays at a position corresponding to the flap.

5. a flap that opens and closes depending on the result of the determination by the determination unit; The gate device according to claim 1 , wherein the determination unit determines whether to cause the aerial display unit to perform display while the flap is open, or to cause the aerial display unit to perform display after closing the flap.

6. The determination unit determines whether or not there is a shortage of balance based on the information read by the reading unit, The gate device according to claim 1 , wherein the aerial display unit displays a message indicating that the balance is insufficient when the determination unit determines that the balance is insufficient.

7. The gate device according to claim 1 , wherein the aerial display unit performs aerial display by projection utilizing retroreflection.

8. 2. The gate device according to claim 1, wherein the aerial display unit, in response to detection of entrance from either direction, displays a display indicating that one direction is given priority and that passage is prohibited for the other direction.

Images