JP2019087161A - Display device - Google Patents

Abstract

To provide a display device which displays a parking frame in a case where a vehicle parks and does not display the parking frame in other cases as an example.SOLUTION: A display device according to an embodiment comprises: a vehicle detection unit that detects that a vehicle has entered a parking; and a light projection unit that projects light when the vehicle is detected so that a parking frame is displayed in a parking area where the vehicle can be parked.SELECTED DRAWING: Figure 2

Description

  Embodiments of the present invention relate to a display device.

  Conventionally, in a parking lot, a white line or the like indicating a parking frame, which is an outer frame of a parking area in which a vehicle is parked, is previously painted or installed on the ground. Moreover, in such a prior art, the technique which adjusts the width | variety of a parking frame is known by moving the white line etc. which show a parking frame to the width direction.

JP-A-9-245297

  However, in the prior art, although a white line or the like indicating a parking frame is movable in the width direction, it has been permanently installed in a parking lot. In such a prior art, since a white line etc. exist, when the said parking lot is used by applications other than a parking lot, the use of the said parking lot may be limited. Therefore, it has been required to display a parking frame when the vehicle is parked, and not to display the parking frame otherwise.

  In the display device according to the embodiment of the present invention, as an example, a vehicle detection unit that detects that a vehicle has entered a parking lot and a parking frame is displayed in a parking area where the vehicle can park when the vehicle is detected. And a light emitting unit for emitting light. Therefore, according to the display device according to the embodiment, since the parking frame is displayed by light, the parking frame can be displayed when the vehicle is parked, and the parking frame can not be displayed in other cases.

  The display device further includes, as an example, a measurement unit that measures the size of the vehicle, and a determination unit that determines the size of the parking area according to the measured size of the vehicle. In addition, the light projecting unit projects light so that the parking frame of the size of the parking area determined by the determining unit is displayed. Therefore, according to the display device according to the embodiment, as an example, the inter-vehicle distance between parked vehicles can be prevented from being wider than necessary, and the space of the parking lot can be effectively used.

  In the display device, as an example, parking lot dimension information which is information indicating the width, depth and height of the parking lot, and obstacles which are information indicating the position, width, depth and height of the obstacle existing in the parking lot It further comprises a storage unit for storing object information and occupancy information which is information indicating the position, width and depth of an occupied area where another vehicle has already parked in a parking lot. In addition, the determination unit determines the position and size of the parking area based on the measured size of the vehicle, the parking lot size information stored in the storage unit, the obstacle information, and the occupancy information. Therefore, according to the display device according to the embodiment, as an example, it is possible to display a parking area in which the vehicle can be parked without overlapping with the position of the obstacle or the other vehicle in the parking lot.

  In the display device, as an example, the determination unit compares the measured width, length, and height of the vehicle, the parking lot size information stored in the storage unit, the obstacle information, and the occupancy information. Among the areas in the parking lot that have no obstacle and are not occupied by another vehicle, the non-parking area where the vehicle can not secure a sufficient space for parking is determined. In addition, the light projection unit projects light so that the non-parking area can indicate that the area is non-parking possible. Therefore, according to the display device according to the embodiment, as an example, it is possible to suppress that the driver of the vehicle attempts to park at a place where the vehicle can not be parked. Moreover, according to the display device of the present embodiment, with such a configuration, it is possible to prevent the vehicle from contacting an obstacle or another parked vehicle, as an example.

  In the display device, as an example, a parking detection unit that detects a vehicle in a parking area where the light emitting unit displays a parking frame, and occupancy information stored in the storage unit when the parking detection unit detects a vehicle. And a data updating unit that registers information indicating the position, width, and depth of the parking area where the detected vehicle has parked. Therefore, according to the display device according to the embodiment, as an example, it can be determined with high accuracy that the vehicle has parked in the parking area where the light emitting unit displays the parking frame.

FIG. 1 is a view showing an example of display of a parking frame by the display device according to the first embodiment. FIG. 2 is a diagram showing an example of the entire configuration of the display device according to the first embodiment. FIG. 3 is a view showing an example of a top view of the entrance gate device and the camera according to the first embodiment as viewed from above. FIG. 4 is a view showing an example of a side view of the entrance gate device and the camera according to the first embodiment as viewed from the side. FIG. 5 is a view showing an example of the data configuration of the parking lot size information database according to the first embodiment. FIG. 6 is a view showing an example of the data configuration of the occupancy information database according to the first embodiment. FIG. 7 is a view showing an example of the data configuration of the obstacle information database according to the first embodiment. FIG. 8 is a view showing an example of an obstacle according to the first embodiment. FIG. 9 is a flowchart showing an example of the flow of the parking frame display process according to the first embodiment. FIG. 10 is a flowchart showing an example of the flow of the exclusive information deletion process according to the first embodiment. FIG. 11 is a view showing an example of the display of the parking frame by the display device according to the second embodiment. FIG. 12 is a view showing an example of the curb type apparatus according to the second embodiment in an enlarged manner. FIG. 13 is a diagram showing an example of the entire configuration of the display device according to the second embodiment. FIG. 14 is a view showing an example of the data configuration of the occupancy information database according to the second embodiment. FIG. 15 is a flowchart showing an example of the flow of the parking frame display process according to the second embodiment. FIG. 16 is a flowchart illustrating an example of the flow of the exclusive information deletion process according to the second embodiment. FIG. 17 is a view showing an example of the display of the parking frame by the display device according to the third embodiment. FIG. 18 is a view showing an example of the overall configuration of the display device according to the third embodiment. FIG. 19 is a view showing an example of the data configuration of a parking lot information database according to the third embodiment. FIG. 20 is a flowchart showing an example of the flow of the parking frame display process according to the third embodiment. FIG. 21 is a flow chart showing an example of the flow of the process of updating the parking lot information database at the time of leaving the vehicle according to the third embodiment.

First Embodiment
The display device of the present embodiment displays a parking frame in a parking area where the vehicle can park by projecting light when detecting that the vehicle has entered the parking lot.

  FIG. 1 is a view showing an example of display of parking frames 6a and 6b by the display device 100 according to the present embodiment. As shown in FIG. 1, the display device 100 of the present embodiment includes light projectors 4 a to 4 c.

  The projectors 4a to 4c display parking frames 6a and 6b by projecting light in a parking area where the vehicle 1 can park when the vehicle 1 entering (entering) the parking lot is detected. Hereinafter, the light projectors 4 a to 4 c are simply referred to as the light projector 4 when not particularly distinguished. The light projector 4 is installed on the ceiling, wall, etc. of the parking lot so that light can be projected onto the ground (road surface, floor) of the parking lot. The light projector 4 can adjust the light projection position, for example, by performing a swing operation that changes the angle to the left and right. Moreover, in the case of the outdoor parking lot which does not have a roof, the light projector 4 may be installed in a pole etc. The number of projectors 4 and the installation interval are not limited to the example shown in FIG. The light projector 4 is controlled by a control server described later.

  The vehicle 1 entering the parking lot is detected by the entrance gate device (shown in FIG. 2), the details of which will be described later. The parking area where the vehicle 1 can park is determined by the control server (shown in FIG. 2) described later, but the details will be described later.

  The parking frames 6a and 6b are outer frames of a parking area where the vehicle 1 can park. In other words, the parking frames 6a and 6b are boundaries between the parking area where the vehicle 1 can park and the other areas. In the present embodiment, the parking frames 6 a and 6 b are projected on the ground (road surface, floor) by the light (visible light) emitted from the light projector 4. Hereinafter, when the parking frames 6a and 6b are not particularly distinguished from one another, they are simply referred to as the parking frame 6. The shape of the parking frame 6 is not limited to two straight lines as shown in FIG. 1, and may be two U-shaped lines, a rectangle of the size of the parking area, or the like. Although the color of the parking frame 6 is not particularly limited, it is, for example, white. In addition, the light emitter 4 may adopt a configuration that makes it easy for the driver of the vehicle 1 to find it by displaying the parking frame 6 in a blinking (flashing) manner.

  Since the parking frame 6 displayed as shown in FIG. 1 can be imaged by a camera (not shown) mounted on the vehicle 1, parking assistance performed by an ECU (Electronic Control Unit) or the like mounted on the vehicle 1 or , Automatic valet parking (automatic valet parking, automatic valet service) can also be supported.

  In addition, there may be a non-parking area where the vehicle 1 can not park because the vehicle 1 can not secure an area for parking the vehicle 1 between the entrance of the parking lot and the parking area where the vehicle 1 can park. is there. In such a case, the light projector 4 emits light so that the non-parking area indicates that the area is non-parking possible. More specifically, as shown in FIG. 1, the light projector 4c displays the non-parking impossible mark 7 in the non-parking area by projecting light. As described above, the projector 4 c emits the non-parking mark 7 so that the driver of the vehicle 1 can be prevented from trying to park at a place where the vehicle 1 can not be parked. In addition, although the non-parking area is determined by the control server described later, the details will be described later. The parking prohibition mark 7 is an example of a method of displaying that parking is not possible in the present embodiment, and is not limited to the example shown in FIG. 1. For example, another mark or a message indicating that parking can not be performed may be displayed.

  Next, the configuration of the display device 100 for realizing the display of the parking frame 6 as described above will be described. FIG. 2 is a diagram showing an example of the overall configuration of the display device 100 according to the present embodiment.

  As shown in FIG. 2, the display device 100 includes an entrance gate device 2 a, an exit gate device 2 b, cameras 3 a and 3 b, a control server 5, and a light projector 4.

  The entrance gate device 2a detects that the vehicle 1 has entered the parking lot. More specifically, the entrance gate device 2a is installed at the entrance of the parking lot and detects the vehicle 1 entering the parking lot from the entrance. The entrance gate device 2 a includes a sensor that detects the vehicle 1. The sensor is, for example, a sonar (a sonar sensor, an ultrasonic detector), a laser radar, or the like that emits ultrasonic waves and captures the reflected waves. Further, the entrance gate device 2a may have a function such as a parking ticket issuing machine. The entrance gate apparatus 2a transmits a signal etc. to the control server 5 when detecting that the vehicle 1 has entered the parking lot.

  Moreover, the camera 3a is an imaging device installed in the vicinity of the entrance gate device 2a and imaging the vehicle 1 detected by the entrance gate device 2a.

  FIG. 3 is a view showing an example of a top view of the entrance gate device 2a and the camera 3a according to the present embodiment as viewed from above. Moreover, FIG. 4 is a figure which shows an example of the side view which looked at the entrance gate apparatus 2a concerning this embodiment, and the camera 3a from the side.

  As shown to FIG.3, 4, the entrance gate apparatus 2a of this embodiment is equipped with the bar 21 which operate | moves up and down. The camera 3a captures an image of the vehicle 1 stopped by the lowered bar 21, for example, from obliquely above. Although the position of the camera 3a is not limited to the position shown in FIGS. 3 and 4, the camera 3a includes the license plate of the vehicle 1, the width (width, vehicle width) VW of the vehicle 1, and the length (vehicle width) VL. The image is captured at an imaging angle at which the height (vehicle height) VH can be recognized from the captured image. Also, a plurality of cameras 3a may be installed near the entrance gate device 2a to image the vehicle 1 from different imaging angles. Moreover, the camera 3a may employ | adopt the structure which images the vehicle 1 from several angles by imaging several times according to advancing of the vehicle 1. FIG.

  Returning to FIG. 2, the exit gate device 2 b is installed at the exit of the parking lot, and detects the vehicle 1 leaving (exiting) the parking lot from the exit. The exit gate device 2 b is provided with a sonar, a laser radar, and the like, similarly to the entrance gate device 2 a, and detects the vehicle 1. In addition, the exit gate device 2b may have a function such as a checkout machine of a parking fee. Further, the outlet gate device 2b is provided with a bar 21 operating up and down, like the inlet gate device 2a. The exit gate apparatus 2b transmits a signal etc. to the control server 5 when detecting the vehicle 1 which leaves the parking lot (exit).

  Moreover, the camera 3b is an imaging device installed in the vicinity of the exit gate device 2b and imaging the vehicle 1 detected by the exit gate device 2b. The camera 3b captures an image at an imaging angle at which the license plate of the vehicle 1 can be recognized from the captured image.

  The inlet gate device 2a and the outlet gate device 2b are not limited to the above-described configuration. For example, the inlet gate device 2 a and the outlet gate device 2 b may have an open / close door or the like instead of the bar 21. Further, the entrance gate device 2a and the exit gate device 2b do not have the bar 21 as long as the cameras 3a and 3b can pick up a captured image that can recognize the number etc. of the vehicle 1 even if the vehicle 1 does not stop. May be adopted. Further, even if the vehicle 1 does not stop, the exit gate device 2b may not be installed as long as the camera 3b can recognize the number of the vehicle 1.

  The control server 5 controls the entire display device 100. The control server 5 includes a control device such as a central processing unit (CPU), a storage device such as a read only memory (ROM) or a random access memory (RAM), and an external storage such as a hard disk drive (HDD) or a CD drive. And a hardware configuration using a normal computer. The control server 5 is installed, for example, in a management room (not shown). Alternatively, the control server 5 may be installed near the entrance gate device 2a or the exit gate device 2b.

  As shown in FIG. 2, the control server 5 includes a storage unit 51, an acquisition unit 52, a measurement unit 53, a recognition unit 54, a gate control unit 55, a determination unit 56, and a light projection control unit 57. And a data update unit 58. The measurement unit 53, the recognition unit 54, the gate control unit 55, the determination unit 56, the light emission control unit 57, and the data update unit 58 are realized by the CPU executing a program stored in the ROM. Note that these configurations may be configured to be realized by a hardware circuit.

  The storage unit 51 has a parking lot size information database (DB) 501, an occupancy information database (DB) 502, and an obstacle information database (DB) 503. The storage unit 51 is a storage device such as an HDD.

  The parking lot size information database 501 is a database in which the width, depth and height of the parking lot are registered in advance.

  FIG. 5 is a view showing an example of the data configuration of the parking lot size information database 501 according to the present embodiment. As shown in FIG. 5, in the parking lot size information database 501, the width, depth, and height of the parking lot are registered in association with each other. In the present embodiment, the information registered in the parking lot size information database 501 is called parking lot size information. Moreover, in the case of the outdoor parking lot which does not have a roof, only the width | variety and the depth are registered into the parking lot dimension information database 501. FIG. The data configuration of the parking lot size information database 501 shown in FIG. 5 is an example, and the present invention is not limited to this.

  Returning to FIG. 2, the occupancy information database 502 is a database in which information indicating the position, width, and depth of the occupancy area in the parking lot is registered. The occupied area is an area where the vehicle 1 is parked in the parking lot.

  FIG. 6 is a view showing an example of the data configuration of the occupancy information database 502 according to the present embodiment. As shown in FIG. 6, in the occupancy information database 502, the number, the position, the width, the depth, and the vehicle number are registered in association with each other. In the present embodiment, the information registered in the occupancy information database 502 is called occupancy information.

  The number is identification information that identifies the occupied area. The position is the position of the occupied area in the parking lot. For example, coordinates indicating the position of the occupied area in the parking lot, y-coordinate in the depth direction of the parking lot, and x-coordinate in the width direction are registered. The width is the length in the width direction of the occupied area. Also, the depth is the length in the depth direction of the occupied area. The width direction and the depth direction of the occupied area are directions showing the same direction as the width direction and the depth direction of the parking lot.

  The vehicle number is the number written on the license plate of the vehicle 1 parked in the occupied area. The number described on the license plate of the vehicle 1 is image-recognized by the recognition unit 54 described later from the captured image captured by the camera 3a. The vehicle number is information for identifying the vehicle 1 parked in the occupied area, and is not limited to this as long as the information can identify the vehicle 1. The data configuration of the occupancy information database 502 shown in FIG. 6 is an example, and the present invention is not limited to this.

  Returning to FIG. 2, the obstacle information database 503 is a database in which the position, width, depth and height of the obstacle existing in the parking lot are registered in advance.

  FIG. 7 is a view showing an example of the data configuration of the obstacle information database 503 according to the present embodiment. As shown in FIG. 7, in the obstacle information database 503, the number, the position, the width, the depth, and the height are registered in association with each other. In the present embodiment, the information registered in the obstacle information database 503 is referred to as obstacle information.

  The number is identification information that identifies an obstacle. The position is the position of the obstacle in the parking lot. For example, as the position, the position of the obstacle in the parking lot is registered, y-coordinate in the depth direction of the parking lot, and x-coordinate in the width direction. The width is the length in the width direction of the obstacle. Also, the depth is the length in the depth direction of the obstacle. The width direction and the depth direction of the obstacle are directions showing the same direction as the width direction and the depth direction of the parking lot.

  The height is the height at which the obstacle exists. Here, since the obstacle may exist in a floating state (away) from the ground of the parking lot, in the present embodiment, the height of the obstacle is defined as the height of the start position and the end position of the obstacle. Is registered.

  FIG. 8 is a view showing an example of the obstacle 71 according to the present embodiment. An obstacle 71 shown in FIG. 8 is provided on the wall of the parking lot, and exists at a position away from the ground of the parking lot. In such a case, the lowest height H1 of the obstacle 71 is the height of the start position of the obstacle 71, and the highest height H2 of the obstacle 71 is the height of the end position of the obstacle 71. When the obstacle 71 is an object installed on the ground of a parking lot (for example, a fire hydrant etc.), the height of the obstacle 71 is “0 m to 1.5 m”, and the height of the start position is Becomes "0". The data configuration of the obstacle information database 503 and the method of registering the height of the obstacle are not limited to this.

  Returning to FIG. 2, the acquisition unit 52 acquires, from the entrance gate device 2 a and the exit gate device 2 b, a signal for conveying the detection of the vehicle 1 and the like. Further, the acquisition unit 52 may adopt a configuration in which the measurement results of the sonar or the like of the entrance gate device 2a and the exit gate device 2b are acquired, and the presence or absence of the vehicle 1 is detected from the measurement result. The vehicle detection unit in the present embodiment may be the entrance gate device 2 a or the acquisition unit 52. Further, a combination of the entrance gate device 2a and the acquisition unit 52 may be used as a vehicle detection unit.

  The acquisition unit 52 also acquires a captured image from the cameras 3a and 3b. More specifically, when the entrance gate device 2a detects the vehicle 1 entering the parking lot, the acquiring unit 52 instructs the camera 3a to start imaging. Then, the acquisition unit 52 acquires, from the camera 3a, a captured image captured by the camera 3a.

  In addition, when the exit gate device 2b detects the vehicle 1, the acquisition unit 52 instructs the camera 3b to start imaging. Then, the acquisition unit 52 acquires, from the camera 3b, a captured image captured by the camera 3b. The acquisition unit 52 sends the captured image acquired from the camera 3a or the camera 3b to the measurement unit 53 and the recognition unit 54.

  The measuring unit 53 measures the size of the vehicle 1 that has entered the parking lot. In the present embodiment, the size of the vehicle 1 is the width VW, the length VL, and the height VH of the vehicle 1. The measurement unit 53 measures the width VW, the length VL, and the height VH of the vehicle 1 from the captured image of the camera 3a acquired by the acquisition unit 52. As a method of measuring the size of the vehicle 1 from the captured image, a known image processing method can be adopted. The measuring unit 53 sends the measured size of the vehicle 1 to the determining unit 56.

  The recognition unit 54 recognizes the number written on the license plate of the vehicle 1 from the images captured by the cameras 3a and 3b acquired by the acquisition unit 52. More specifically, the recognition unit 54 recognizes the number of the vehicle 1 entering the parking lot from the captured image captured by the camera 3a. The recognition unit 54 also recognizes the number of the vehicle 1 leaving the parking lot from the captured image captured by the camera 3b.

  As a method of recognizing a number from a captured image, a known image processing (image recognition) method can be adopted. The recognition unit 54 sends out the recognized number of the vehicle 1 to the data update unit 58.

  The gate control unit 55 controls the inlet gate device 2a and the outlet gate device 2b. For example, when the camera 3a finishes imaging and there is a parking area where the vehicle 1 can park, the gate control unit 55 controls the entrance gate device 2a to raise the bar 21 and open the gate. Further, the gate control unit 55 controls the outlet gate device 2b to raise the bar 21 and open the gate when the camera 3b finishes imaging.

  The determination unit 56 determines the size of the parking area where the vehicle 1 can park according to the measured size of the vehicle 1. In the present embodiment, the determination unit 56 is information registered in the measured size of the vehicle 1, the parking lot size information database 501 of the storage unit 51, the obstacle information database 503, and the occupancy information database 502. Based on the above, the position and size of the parking area where the vehicle 1 can park is determined.

  More specifically, the determination unit 56 determines the positions of the obstacles 71 registered in the obstacle information database 503 from the width, depth, and height of the parking lot registered in the parking lot size information database 501. The dimensions of the space excluding the width, depth and height of the obstacle 71 are obtained. Furthermore, the determination unit 56 is occupied by other vehicles except for the position, width, and depth of each vehicle 1 registered in the occupancy information database 502 from the dimensions of the parking lot excluding the obstacle 71. Find an area that does not exist.

  The determination unit 56 allows the vehicle 1 to park an area in the parking lot where there is no obstacle 71 and is not occupied by another vehicle, and the area for securing the vehicle 1 can be secured. Judge as a parking area. The area where the vehicle 1 can park is defined as the width VW, the length VL, and the height VH of the vehicle 1 measured by the measuring unit 53, by adding a buffer (buffer, margin) length to each of them. Space area of different size. For example, in order to make it possible to open and close the door of the vehicle 1, the width of the parking area that can be parked is the width VW of the vehicle 1 plus 40 cm. 40 cm is an example of the length which becomes a buffer of width VW, and it is not limited to this.

  When there are a plurality of parking areas in which the vehicle 1 can park, the determination unit 56 determines the parking area closest to the entrance of the parking lot as the parking area for displaying the parking frame 6. Thus, the determination unit 56 determines the position at which the parking frame 6 is displayed. Further, in the present embodiment, the width and the depth of the parking area determined by the determination unit 56 are the size of the parking frame 6. Then, the determination unit 56 sends the determined position and size of the parking frame 6 to the light projection control unit 57.

  The determination unit 56 also measures the width VW, length VL, height VH of the vehicle 1 measured by the measurement unit 53, the parking lot size information database 501 of the storage unit 51, the obstacle information database 503, and the occupancy information database Comparing the information registered in 502, in the parking lot, there is no obstacle 71, and in the area which is not occupied by other vehicles, the parking area where the vehicle 1 can not secure can be secured Determine the impossible area. In the present embodiment, “the area for parking the vehicle 1 can not be secured” means that the area is a buffer (buffer, margin) to the width VW, the length VL, and the height VH of the vehicle 1 It means that it is smaller than the size which added the length respectively.

  Then, the determination unit 56 determines whether or not there is a non-parkable area between the entrance and the parking area where the vehicle 1 can park, which is determined as the parking area for displaying the parking frame 6. If there is a non-parking area from the entrance to the parking area determined as the parking area for displaying the parking frame 6, the determination unit 56 sends the position of the non-parking area to the light projection control unit 57. .

  In the display device 100 according to the present embodiment, when the vehicle 1 is detected, the determination unit 56 of the control server 5 measures the size of the measured vehicle 1, the parking lot size information database 501 of the storage unit 51, and the obstacle The parking area and the non-parking area where the vehicle 1 can park are determined by comparing the information registered in the object information database 503 and the occupancy information database 502, but the processing timing is limited to this is not. For example, the determination unit 56 may adopt a configuration in which an area having no obstacle 71 and not occupied by another vehicle is obtained in advance and stored in the storage unit 51.

  When the vehicle 1 is detected, the light projection control unit 57 controls the light projector 4 to emit light so that the parking frame 6 is displayed in the parking area where the vehicle 1 can be parked. More specifically, when the acquisition unit 52 acquires, from the entrance gate device 2a, a signal that conveys detection of the vehicle 1, the light projection control unit 57 determines the position and size (width of the parking frame 6 from the determination unit 56). And get a depth). The light projection control unit 57 transmits an instruction to the light projector 4 so as to display the acquired parking frame 6 at the acquired position. For example, the light projection control unit 57 designates the light projector 4 that emits light, and determines the light projection angle of the light projector 4.

  Further, the light projection control unit 57 acquires the position of the non-parking area determined by the determination unit 56, and causes the light projector 4 to project light to the position of the non-parking area to display the non-parking non-permission mark 7 Send an instruction to the projector 4.

  For example, in the example shown in FIG. 1, the projector 4 c can not be parked in the parking impossible area under the control of the light projection control unit 57 in the parking impossible area where the vehicle 1 can not secure the area for parking. The mark 7 is displayed. Further, in the example shown in FIG. 8, when the height H1 of the start position of the obstacle 71 is lower than the height VH of the vehicle 1 and the vehicle 1 is parked in front of the obstacle 71, the length VL of the vehicle 1 Is a non-parking area where the area for the vehicle 1 to park can not be secured because it exceeds the parking area. Also in such a case, under the control of the light emission control unit 57, the light projector 4 displays the parking impossible mark 7 in the parking impossible area.

  Further, in the present embodiment, when a predetermined time has elapsed from the start of the display of the parking frame 6, the light projection control unit 57 controls the light projector 4 to end the light projection, and the parking frame 6 and the parking The display of the invalid mark 7 is ended. The predetermined time may be appropriately determined in accordance with the size of the parking lot, or may be determined in accordance with the distance from the entrance of the parking lot to the position of the parking frame 6.

  The light projector in the present embodiment may be the light projector 4 or the light projector controller 57. In addition, the light projection unit in the present embodiment may be a combination of the light projector 4 and the light projection control unit 57.

  Returning to FIG. 2, the data update unit 58 determines the position, width, depth, and number of the vehicle 1 entering the parking lot recognized by the recognition unit 54, which is determined by the determination unit 56 and can park the vehicle 1. , And in association with each other, are assigned numbers, and registered in the occupation information database 502.

  In addition, when the vehicle 1 parked in the parking lot leaves the garage and leaves the parking lot, the data updating unit 58 occupies information on the parking area (occupied area) in which the parked vehicle 1 was parked. It is deleted from the information database 502. In the present embodiment, the data updating unit 58 acquires the number of the vehicle 1 leaving the parking lot recognized by the recognition unit 54, and searches the occupancy information database 502 for a vehicle number that matches the number of the vehicle 1. . Then, the data updating unit 58 deletes the information of the number, the position, the width, and the depth associated with the vehicle number of the search result from the occupancy information database 502.

  Next, parking frame display processing by the display device 100 of the present embodiment configured as described above will be described. FIG. 9 is a flowchart showing an example of the flow of parking frame display processing according to the present embodiment.

  The acquiring unit 52 determines whether or not the entrance gate device 2a has detected the vehicle 1 entering the parking lot, depending on whether a signal or the like for detecting the detection of the vehicle 1 is transmitted from the entrance gate device 2a (S1) ). When the entrance gate device 2a does not detect the vehicle 1 entering the parking lot (S1 "No"), the process of S1 is repeated.

  The acquiring unit 52 determines that the entrance gate device 2a has detected the vehicle 1 entering the parking lot when acquiring a signal or the like for detecting the detection of the vehicle 1 from the entrance gate device 2a (S1 "Yes"). In this case, the acquisition unit 52 instructs the camera 3a to start imaging. Then, the acquiring unit 52 acquires a captured image captured by the camera 3a from the camera 3a (S2).

  The measurement unit 53 measures the size (width VW, length VL, height VH) of the vehicle 1 from the captured image acquired by the acquisition unit 52 (S3).

  Then, the recognition unit 54 recognizes the number of the vehicle 1 from the captured image acquired by the acquisition unit 52 (S4).

  The determination unit 56 searches the parking lot size information database 501 for a parking area that matches the size of the vehicle 1 (S5). More specifically, the determination unit 56 determines the positions of the obstacles 71 registered in the obstacle information database 503 from the width, depth, and height of the parking lot registered in the parking lot size information database 501. The dimensions of the space excluding the width, depth and height of the obstacle 71 are obtained. Furthermore, from the dimensions of the parking lot excluding the obstacle 71, the determination unit 56 obtains the area excluding the position, width, and depth of the occupied area of the other vehicle registered in the occupancy information database 502. And the determination part 56 searches the area | region which can ensure the area for the vehicle 1 to park among the area | region which does not have the obstruction 71 and is not occupied by the other vehicle.

  The determination unit 56 is an area in the parking lot where there is no obstacle 71 and that is not occupied by other vehicles, an area where the vehicle 1 can secure an area for parking, that is, the vehicle 1 can be parked. The presence or absence of the parking area is determined from the search result (S6). If there is no parking area where the vehicle 1 can park (S6 "No"), the processes of S5 and S6 are repeatedly executed. This is because there is a possibility that a parking area in which the vehicle 1 can be parked can be created by leaving another vehicle from the parking lot while performing the processing.

  In the case of S6 "No", the gate control unit 55 indicates that there is no parking area where the vehicle 1 can be parked to the display unit (not shown) or the voice output unit (not shown) of the entrance gate device 2a. It is also possible to adopt a configuration in which the processing of the flowchart is ended by outputting the data.

  If there is a parking area where the vehicle 1 can park (S6 “Yes”), the determination unit 56 determines the position of the parking area as the position at which the parking frame 6 is displayed. Further, the determination unit 56 determines the width and depth of the parking area as the size of the parking frame 6. When there are a plurality of parking areas in which the vehicle 1 can park, the determination unit 56 determines the parking area closest to the entrance of the parking lot as the parking area for displaying the parking frame 6.

  And the light projection control part 57 acquires the position and magnitude | size (width and depth) of the parking frame 6 which the determination part 56 determined. The light projection control unit 57 controls the light projector 4 to emit light so that the parking frame 6 is displayed in the parking area where the vehicle 1 can park (S7).

  Further, the determination unit 56 determines whether there is a non-parking impossible area where the vehicle 1 can not secure an area for parking from the entrance of the parking lot to the parking area determined as the parking area where the vehicle 1 can park. It is judged whether or not (S8). More specifically, the determination unit 56 determines the width VW, the length VL, the height VH of the vehicle 1 measured by the measurement unit 53, the parking lot size information database 501 of the storage unit 51, the obstacle information database 503, By comparing the information registered in the occupancy information database 502 with the information registered in the parking lot, the area for the vehicle 1 to park in the area where there is no obstacle 71 and is not occupied by another vehicle Determine an unparkable area that can not be secured.

  When there is no parking impossible area where the vehicle 1 can not secure an area for parking the vehicle 1 between the entrance of the parking lot and the parking area determined as the parking area where the vehicle 1 can park (S8 “No”) , S10 processing.

  When there is a non-parking area where the vehicle 1 can not secure an area for parking the vehicle 1 between the entrance of the parking lot and the parking area determined as the parking area where the vehicle 1 can park (S8 “Yes”) The light projection control unit 57 controls the light projector 4 to emit light so that the parking prohibition mark 7 is displayed in the parking non-permission area (S9).

  Next, the gate control unit 55 controls the inlet gate device 2a to raise the bar 21 and open the gate (S10). As the bar 21 is lifted, the vehicle 1 passes through the entrance gate device 2a and enters the parking lot.

  Next, the light projection control unit 57 determines whether a predetermined time has elapsed from the start of the display of the parking frame 6 (S11). Until the predetermined time passes (S11 “No”), the display of the parking frame 6 and the non-parking impossible mark 7 continues. When a predetermined time has elapsed since the start of display of the parking frame 6 (S11 “Yes”), the light projection control unit 57 controls the light projector 4 to end the light projection, and the parking frame 6 and the parking non-permission mark The display of 7 is ended (S12).

  Next, the data updating unit 58 updates the occupancy information database 502 (S13). More specifically, the data update unit 58 determines the position, width, depth, and number of the vehicle 1 entering the parking lot recognized by the recognition unit 54 as determined by the determination unit 56. , And in association with each other, are assigned numbers, and registered in the occupation information database 502. Here, the processing of this flowchart ends.

  Next, the exclusive information deletion process by the display device 100 according to the present embodiment configured as described above will be described. FIG. 10 is a flowchart showing an example of the flow of the exclusive information deletion process according to the present embodiment.

  The acquiring unit 52 determines whether or not the exit gate device 2b has detected the vehicle 1 leaving the parking lot, depending on whether a signal or the like for detecting the detection of the vehicle 1 is transmitted from the exit gate device 2b (S21) ). When the exit gate device 2b does not detect the vehicle 1 leaving the parking lot (S21 "No"), the process of S21 is repeated.

  The acquiring unit 52 determines that the exit gate device 2b has detected the vehicle 1 leaving the parking lot when acquiring a signal or the like that conveys the detection of the vehicle 1 from the exit gate device 2b (S21 "Yes"). In this case, the acquisition unit 52 instructs the camera 3b to start imaging. Then, the acquiring unit 52 acquires a captured image captured by the camera 3b from the camera 3b (S22).

  The recognition unit 54 recognizes the number of the vehicle 1 leaving the parking lot from the captured image acquired by the acquisition unit 52 (S23).

  Next, the data updating unit 58 deletes the information of the exiting vehicle 1 from the occupancy information database 502 (S24). More specifically, the data update unit 58 acquires the number of the vehicle 1 leaving the parking lot recognized by the recognition unit 54, and searches the occupancy information database 502 for a vehicle number that matches the number of the vehicle 1. Then, the data updating unit 58 deletes the information of the number, the position, the width, and the depth associated with the vehicle number of the search result from the occupancy information database 502. Here, the processing of this flowchart ends.

  As described above, when the display device 100 according to the present embodiment detects that the vehicle 1 has entered the parking lot, the light is projected so that the parking frame 6 is displayed in the parking area where the vehicle 1 can park. Do. Therefore, according to the display device 100 of the present embodiment, the parking frame 6 can be displayed when the vehicle 1 is parked, and the parking frame 6 can not be displayed in other cases.

  Conventionally, a white line or the like indicating a parking frame has been displayed by paint or the like applied to the ground of a parking lot, but such white lines or the like are not easy to remove, so use the parking lot for other purposes Even if, it continued to be displayed as it is. For this reason, there were cases where it was difficult to use the parking lot for other purposes. According to the display device 100 of the present embodiment, the parking frame 6 can be displayed when the vehicle 1 is parked, and the parking frame 6 can not be displayed in other cases. It becomes possible. For example, when a parking lot is used as a playground or a radio control race place, a white line indicating a parking frame may interfere with course setting, etc. According to the display device 100 of this embodiment, such It can be reduced to prevent its use in other applications.

  Further, according to the display device 100 of the present embodiment, since the parking frame 6 is displayed without using paint or the like, the sports ground or the like is temporarily used as a parking lot, and even when return to the original state is required after use. , Easy to return to the original state.

  In addition, since white lines and the like formed by conventional paints and the like come in contact with the tires of the vehicle 1, blurs and discoloration are likely to occur, and maintenance work such as repainting has been necessary. According to the display device 100 of the present embodiment, since the parking frame 6 is displayed by light, the load of maintenance work can be reduced.

  Furthermore, according to the display device 100 of the present embodiment, since the size of the vehicle 1 is measured and the parking frame 6 corresponding to the size of the vehicle 1 is displayed, the space of the parking lot can be effectively used. For example, when the vehicle 1 is a mini-vehicle, the display device 100 according to the present embodiment displays the parking frame 6 whose width and depth are smaller than those for the ordinary vehicle. According to the display device 100 of the present embodiment, displaying the parking frame 6 according to the size of the vehicle 1 in this way prevents the inter-vehicle distance between parked vehicles from being provided wider than necessary, and a parking lot Space can be used effectively.

  Furthermore, the display device 100 of the present embodiment stores the parking lot size information database 501, the obstacle information database 503, and the occupancy information database 502, and the information registered in these databases and the measured vehicle 1 The position and size of the parking frame 6 are determined based on the size of the vehicle. For this reason, according to the display device 100 of the present embodiment, a parking area of a size that can be parked by the vehicle 1 is displayed without overlapping with the position where the obstacle 71 in the parking lot and other vehicles are parked. can do.

  Furthermore, the display device 100 according to the present embodiment is, in an area where there is no obstacle 71 in the parking lot and is not occupied by another vehicle, the non-parking area where the vehicle 1 can not secure the area for parking. Indicates that the area is not parkable. For this reason, according to the display device 100 of the present embodiment, it is possible to suppress that the driver of the vehicle 1 attempts to park at a place where the vehicle 1 can not park. Moreover, according to the display apparatus 100 of this embodiment, it can suppress that the vehicle 1 contacts the obstruction 71 or another parked vehicle by such structure.

(Modification 1)
Although the parking frame 6 and the like are displayed by projecting the visible light in the first embodiment, the light projector 4 displays the parking frame 6 and the like, but the method for displaying the parking frame 6 and the like is not limited to this. For example, when a fluorescent paint or the like is applied in advance to the ground of the parking lot, the light projector 4 displays the parking frame 6 and the non-parking impossible mark 7 by projecting invisible light such as infrared light and black light. Also good.

(Modification 2)
Further, the projector 4 may adopt a configuration for displaying a warning when the vehicle 1 is parked out of the parking frame 6. As an example of the warning, for example, the light emitter 4 changes the color of the parking frame 6. In more detail, the light projector 4 of this modification is equipped with the function to detect that the light which floods the parking frame 6 was interrupted | blocked by the vehicle body of the vehicle 1, a tire, etc. FIG. When the light projected to display the parking frame 6 is blocked by the vehicle body or tire of the vehicle 1, the projector 4 changes the color of the light to be projected to red etc. Change the color of to red etc. The warning display method is not limited to this, and the light emitter 4 has a warning symbol, a message, etc. in front of the parking frame 6 (in the direction in which the vehicle 1 enters the parking frame 6). The light may be projected to be displayed. Further, the method of detecting that the vehicle 1 has parked out of the parking frame 6 is not limited to the method of detecting that the light projecting the parking frame 6 is blocked, and sonar, camera, etc. A configuration may be adopted in which detection is performed using

(Modification 3)
Further, in the first embodiment, when there is a non-parking area between the entrance of the parking lot and the parking area where the vehicle 1 can park, the light projector 4 does not have the non-parking mark 7 in the non-parking area. Although the display is made, the projection target of the parking prohibition mark 7 is not limited to this. For example, regardless of the positional relationship with the parking area where the vehicle 1 can park, the light projector 4 may display the parking impossible mark 7 in all the parking impossible areas.

(Modification 4)
Moreover, the light projector 4 may employ | adopt the structure which light-emits light so that the arrow etc. which show the path | route from the entrance of a parking lot to the parking frame 6 may be displayed on the passage (road) in a parking lot. When the configuration is adopted, the driver of the vehicle 1 can more easily find the displayed parking frame 6.

(Modification 5)
Further, in the display device 100 according to the first embodiment, the determination unit 56 of the control server 5 displays the parking area closest to the entrance and the parking area 6 for displaying the parking frame 6 among the parking areas in which the vehicle 1 can park. However, the conditions for determining the parking area for displaying the parking frame 6 are not limited to this. For example, of the parking areas in which the vehicle 1 can park, the determination unit 56 may determine the parking area closest to the exit of the parking lot as the parking area for displaying the parking frame 6. Alternatively, the determination unit 56 may determine a parking area closest to the destination of the occupant of the vehicle 1 among the parking areas in which the vehicle 1 can park as the parking area for displaying the parking frame 6. For example, when the parking lot is a parking lot of a supermarket, the entrance of the supermarket is the destination of the occupants of the vehicle 1. Therefore, it is determined as the parking area to display the parking frame 6 preferentially from the parking area near the entrance of the supermarket. Also good.

(Modification 6)
Moreover, in the display apparatus 100 of 1st Embodiment, although the magnitude | size of the vehicle 1 was measured from the captured image which the camera 3a imaged, even if it measures the magnitude | size of the vehicle 1 using another method good. For example, the measurement unit 53 of the control server 5 may measure the size of the vehicle 1 using a detection result by a laser radar or the like.

(Modification 7)
Moreover, in the display apparatus 100 of 1st Embodiment, although the entrance gate apparatus 2a was used as the vehicle detection part, the structure which detects the vehicle 1 from the captured image which the camera 3a imaged instead of the entrance gate apparatus 2a is employ | adopted It is good. When the configuration is adopted, the vehicle detection unit may be the camera 3a or the acquisition unit 52. Alternatively, the vehicle detection unit may be a combination of the camera 3a and the acquisition unit 52.

(Modification 8)
Also, in the first embodiment, the parking area where other vehicles are parked is taken as the occupied area, but the parking area reserved for a specific vehicle may be taken as the occupied area. For example, in addition to the data configuration of the first embodiment, the occupation information database 502 may further include a reservation flag indicating whether the occupation area is a reserved area. In the case where the configuration is adopted, for example, when the reservation flag is "reservation", the vehicle number registered in the occupancy information database 502 indicates the number of the vehicle which has reserved the area. In the present modification, when the vehicle 1 having a number coincident with the previously registered vehicle number enters the parking lot, the parking frame 6 is displayed in the area indicated by the position, width, and depth associated with the vehicle number. Should be displayed.

Second Embodiment
In the first embodiment, the parking frame 6 and the like are displayed by the light projector 4 projecting light from above. In the display device of the present embodiment, the parking frame 6 and the like are displayed by projecting light from a light projector installed on the ground of the parking lot. Further, in the display device of the present embodiment, by detecting the vehicle 1 in the parking area, it is determined whether the vehicle 1 is parked in the parking area.

  FIG. 11 is a view showing an example of the display of the parking frame 6 by the display device 1100 according to the present embodiment. As shown in FIG. 11, the display device 1100 of the present embodiment includes a curb type device 8.

  FIG. 12 is a view showing an example in which the curb type device 8 according to the present embodiment is enlarged and displayed. As shown in FIG. 12, the curb type device 8 includes light projectors 104 a to 104 d and a detector 9. The curb type device 8 of the present embodiment can be installed directly on the ground of a parking lot or the like, so the projector 104 can be installed even when it is difficult to install the projector 104 on a wall, a pillar, a ceiling or the like of the parking lot.

  The light projectors 104a to 104d have the same functions as in the first embodiment. Hereinafter, the light projectors 104 a to 104 d are simply referred to as the light projector 104 when not particularly distinguished.

  In the present embodiment, the projector 104 is installed on the curb type device 8 facing the parking area. Further, as shown in FIG. 12, a plurality of projectors 104 are installed side by side in the curb-shaped device 8, and the width of the parking frame 6 (the positions of the parking frames 6a and 6b) depends on which projector 104 emits light. ) Is changed. The specification of the light projector 104 is not limited to this. For example, the light projector 104 changes the light projection position by changing the angle from side to side, thereby changing the parking frame 6 and the parking non-permission mark You may employ | adopt the structure which adjusts the position which displays seven.

  The detector 9 is a sonar, a laser radar, or the like, and detects the vehicle 1 in the parking area where the projector 104 displays the parking frame 6. For example, when the detector 9 detects that the vehicle 1 is present at a predetermined distance or less from the detector 9, the detector 9 transmits, to the control server, a signal indicating that the vehicle 1 is parked. The number of projectors 104 and detectors 9 and the installation intervals are not limited to the example shown in FIG.

  FIG. 13 is a view showing an example of the overall configuration of a display device 1100 according to the present embodiment. The display device 1100 of the present embodiment includes an entrance gate device 2 a, an exit gate device 2 b, cameras 3 a and 3 b, a control server 105, and a curb-shaped device 8.

  The entrance gate device 2a, the exit gate device 2b, and the cameras 3a and 3b have the same functions as those of the first embodiment.

  The control server 105 of this embodiment includes a storage unit 151, an acquisition unit 52, a measurement unit 53, a gate control unit 55, a determination unit 56, a light projection control unit 157, and a data update unit 158. . The acquisition unit 52, the measurement unit 53, the gate control unit 55, and the determination unit 56 have the same functions as those in the first embodiment.

  The storage unit 151 of the present embodiment includes a parking lot size information database 501, an occupancy information database 1502, and an obstacle information database 503. The parking lot size information database 501 and the obstacle information database 503 are databases similar to the first embodiment.

  Unlike the occupancy information database 502 of the first embodiment, the occupancy information database 1502 of the present embodiment does not have a vehicle number. FIG. 14 is a view showing an example of the data configuration of the occupancy information database 1502 according to the present embodiment. As shown in FIG. 14, the number, the position, the width, and the depth are associated with each other and registered in the occupancy information database 1502 of the present embodiment. The number, the position, the width, and the depth are information similar to those in the first embodiment.

  Returning to FIG. 13, the light emission control unit 157 of this embodiment controls the light projector 104 and the detector 9 after having the function of the first embodiment. More specifically, when the projector 9 detects the vehicle 1 in the parking area where the projector 104 displays the parking frame 6 when the vehicle 1 is parked, the projector 9 parks the vehicle 1 It is determined that the In this case, the light projection control unit 157 controls the light projector 104 to end the light projection, and ends the display of the parking frame 6 and the non-parking impossible mark 7. Further, in this case, the light projection control unit 157 sends the position of the parking area in which the vehicle 1 detected by the detector 9 is parked to the data updating unit 158. Further, the light projection control unit 157 may adopt a configuration in which the measurement result of the sonar or the like is acquired from the detector 9 and the presence or absence of the vehicle 1 is detected from the measurement result.

  The parking detection unit in the present embodiment may be the detector 9 or the light projection control unit 157. Further, the parking detection unit in the present embodiment may be a combination of the detector 9 and the light projection control unit 157.

  Further, the light projection control unit 157 operates the detector 9 at regular time intervals to detect whether the vehicle 1 is parked continuously in the parking area. When the detector 9 does not detect the vehicle 1 at the position registered in the occupancy information database 1502, the light projection control unit 157 determines that the vehicle 1 has been delivered. The light emission control unit 157 sends the position of the parking area where the vehicle 1 that has been delivered is parked to the data updating unit 158.

  The data updating unit 158 of this embodiment has the function of the first embodiment, and when the detector 9 detects the vehicle 1, the parking area where the detected vehicle 1 is parked in the occupancy information database 1502 Register the position, width and depth of. More specifically, when the vehicle 1 is parked, the data updating unit 158 acquires the position of the parking area in which the vehicle 1 parked by the light projection control unit 157 is parked from the detection result of the detector 9. Further, the data updating unit 158 acquires, from the determining unit 56, the width and the depth of the parking area indicated by the parking frame 6 displayed at the position. Then, the data updating unit 158 registers the position, width, and depth of the parking area where the vehicle 1 detected by the detector 9 is parked in the occupancy information database 1502.

  Further, when the detector 9 does not detect the vehicle 1 at the position registered in the occupancy information database 1502, that is, when the above-mentioned light projection control unit 157 determines that the vehicle 1 has been delivered, the data updating unit 158 The information on the vehicle 1 is deleted from the occupancy information database 1502. More specifically, the data updating unit 158 deletes the number, the width, and the depth, which are associated with the position at which the parked vehicle 1 was parked, from the occupancy information database 1502.

  Next, parking frame display processing by the display device 1100 according to the present embodiment configured as described above will be described. FIG. 15 is a flowchart showing an example of the flow of parking frame display processing according to the present embodiment.

  The processing from detection of the vehicle 1 entering the parking lot at S1 to processing for measuring the size of the vehicle 1 from the captured image at S3 is the same processing as that of the first embodiment. Unlike the first embodiment, there is no process of recognizing the number of the vehicle 1 after the process of S3. The processing from the search for the parking area matching the size of the vehicle 1 in S5 to the processing for opening the gate in S10 is the same processing as in the first embodiment.

  Next, the detector 9 detects the vehicle 1 in the parking area where the projector 104 displays the parking frame 6 (S201). When the detector 9 does not detect the vehicle 1 (S201 “No”), the vehicle 1 has not completed parking in the parking frame 6 yet. In this case, the process of S201 is repeated.

  When the detector 9 detects the vehicle 1 (S201 “Yes”), the light projection control unit 157 acquires, from the detector 9, a signal that conveys the detection of the vehicle 1. In this case, the light projection control unit 157 controls the light projector 104 to end the light projection, and ends the display of the parking frame 6 and the non-parking impossible mark 7 (S12). Further, in this case, the light projection control unit 157 sends the position of the parking area in which the vehicle 1 detected by the detector 9 is parked to the data updating unit 158.

  Next, the data updating unit 158 updates the occupancy information database 1502 (S202). More specifically, the data updating unit 158 acquires the position, width, and depth of the parking area where the vehicle 1 has parked from the light projection control unit 157 and the determination unit 56. Then, the data updating unit 158 registers the position, width, and depth of the parking area where the vehicle 1 detected by the detector 9 is parked in the occupancy information database 1502. Here, the processing of this flowchart ends.

  Next, the exclusive information deletion process by the display device 1100 of the present embodiment configured as described above will be described. FIG. 16 is a flowchart showing an example of the flow of the exclusive information deletion process according to the present embodiment.

  The light projection control unit 157 operates the detector 9 at regular time intervals, and determines whether the parked vehicle 1 is detected at the position registered in the occupancy information database 1502 (S221). When the detector 9 detects the vehicle 1 (S221 "Yes"), the process of S221 is repeated.

  If the detector 9 does not detect the vehicle 1 (S221 “No”), the light projection control unit 157 determines that the vehicle 1 has left the parking area. In this case, the light projection control unit 157 sends out the position of the parking area where the vehicle 1 that has been delivered parked to the data updating unit 158.

  Then, the data updating unit 158 deletes the information of the vehicle 1 that has been delivered from the occupancy information database 1502 (S222). Here, the processing of this flowchart ends.

  As described above, according to the display device 1100 of the present embodiment, when the detector 9 detects the vehicle 1 in the parking area where the light projector 104 displays the parking frame 6, the parking area in which the detected vehicle 1 is parked In order to register information indicating the position, width and depth of the vehicle in the occupancy information database 1502, it can be determined with high accuracy that the vehicle 1 has parked in the parking area indicated by the parking frame 6.

  Further, according to the display device 1100 of the present embodiment, after the detector 9 determines with high accuracy that the vehicle 1 has completed parking, the display of the parking frame 6 and the parking impossible mark 7 can be ended. .

  In the present embodiment, since the number of the vehicle 1 is not used to determine whether the vehicle 1 has left the parking lot, the display device 1100 detects the vehicle 1 leaving the parking lot. And the camera 3b which images the number of the vehicle 1 to leave may be employed.

(Modification 9)
In the second embodiment, the curb type device 8 including the projector 104 and the detector 9 is used, but the combination of the projector 104 and the detector 9 is not limited to this. For example, the display device 1100 may adopt a configuration including the curb type device 8 including the detector 9 and the light projector 4 disposed above as in the first embodiment. Moreover, the detector 9 may be installed other than the curb type device 8. For example, the detector 9 may be installed on a wall of a parking lot, a pole or the like.

(Modification 10)
In the first embodiment and the second embodiment, the light projector 4 installed at the upper side or the light projector 104 included in the curb type device 8 is employed, but the light projector is not limited to these. For example, the display devices 100 and 1100 may employ a configuration provided with a projector mounted on a drone. In the present modification, the light projection control units 57 and 157 control the position of the drone and are mounted on the drone so that the parking frame 6 is displayed in the parking area where the vehicle 1 determined by the determination unit 56 can be parked. Emits light from the projector.

Third Embodiment
In the first embodiment, the display device 100 determines the position and the size of the parking area for displaying the parking frame 6 according to the size of the vehicle 1. In the present embodiment, the position and size of the parking area are determined in advance.

  FIG. 17 is a view showing an example of the display of the parking frame 6 by the display device 2100 according to the present embodiment. The parking section 900 shown by a broken line in FIG. 17 is a section indicating the position and size of a predefined parking area. The parking section 900 is not actually displayed on the ground of the parking lot, and is registered as definition information in a storage unit of a control server described later.

  FIG. 18 is a view showing an example of the overall configuration of a display device 2100 according to the present embodiment. As shown in FIG. 18, the display device 2100 of the present embodiment includes an entrance gate device 2 a, an exit gate device 2 b, cameras 3 a and 3 b, a control server 205, and a light projector 4.

  The entrance gate device 2a, the exit gate device 2b, the cameras 3a and 3b, and the light projector 4 have the same functions as those in the first embodiment.

  The control server 205 according to the present embodiment includes a storage unit 251, an acquisition unit 52, a measurement unit 53, a recognition unit 54, a gate control unit 55, a determination unit 156, a light projection control unit 57, and a data update unit. And 258. The acquisition unit 52, the measurement unit 53, the recognition unit 54, and the gate control unit 55 have the same functions as those in the first embodiment.

  The storage unit 251 of the present embodiment includes a parking lot information database (DB) 504. In the parking lot information database 504, definition information of the parking lot 900 and information on whether or not the vehicle 1 is parked are registered in association with each parking area defined as the parking lot 900.

  FIG. 19 is a view showing an example of the data configuration of the parking lot information database 504 according to the present embodiment. As shown in FIG. 19, in the parking lot information database 504, the number, the position, the width, the depth, the height, the occupancy flag, and the vehicle number are registered in association with each other. Further, in the present embodiment, the number, the position, the width, the depth, and the height are also referred to as definition information of the parking section 900. In the present embodiment, the number, the position, the width, the depth, and the height are registered in advance in the parking lot information database 504.

  The number is identification information for identifying each parking area defined as the parking section 900. In the present embodiment, the parking space 6 is displayed preferentially for the parking area having a smaller number. The number is appropriately set, for example, according to the request of the manager of the parking lot or the like.

  The position is the position of each parking area defined as the parking lot 900 in the parking lot. For example, as the position, the position of each parking area is registered, y-coordinate in the depth direction of the parking lot, and x-coordinate in the width direction. The width is the length in the width direction of each parking area. Moreover, depth is the length of the depth direction of each parking area. The width direction and the depth direction of the parking area are directions showing the same direction as the width direction and the depth direction of the parking lot.

  The height is a height usable for parking the vehicle 1 in each parking area. For example, when the obstacle 71 is present at the top of the parking area, the lowest height H1 of the obstacle 71 is registered as the height of each parking area. Moreover, when the obstacle 71 does not exist in the upper part of the parking area, the height of the ceiling of the parking lot is registered as the height of each parking area. The sizes (width, depth, height) of the parking areas registered in the parking area information database 504 may be different from one another or may be the same.

  The occupancy flag is a flag that indicates whether the vehicle 1 is parked. For example, when the occupancy flag is "1 (occupied)", it indicates that the vehicle 1 is parked in the parking area. When the occupancy flag is "0 (not occupied)", it indicates that the vehicle 1 is not parked in the parking area. The setting value of the above-mentioned occupation flag is an example, and is not limited to this.

  The vehicle number is a number written on the license plate of the vehicle 1 parked in the parking area. The vehicle number is recognized by the recognition unit 54 from the captured image captured by the camera 3a, as in the first embodiment. The data configuration of the parking lot information database 504 shown in FIG. 19 is an example, and the present invention is not limited to this.

  Referring back to FIG. 18, the determination unit 156 of the present embodiment searches the parking lot information database 504 for a parking area that matches the size of the vehicle 1 and determines the size of the parking frame 6 according to the size of the vehicle 1. .

  More specifically, the determination unit 156 determines that the occupancy flag is “of the width VW, the length VL, the height VH of the vehicle 1 measured by the measurement unit 53, and each parking area registered in the parking lot information database 504. Compare the position, width, depth and height of each parking area which is 0 (unoccupied). Then, the determination unit 156 searches the parking lot information database 504 as a parking area that matches the size of the vehicle 1 from the area where the area for parking the vehicle 1 can be secured.

  Then, the determination unit 156 determines the parking area searched from the parking lot information database 504 as a parking area for displaying the parking frame 6. In addition, when there are a plurality of parking areas in which the vehicle 1 can be parked, the determination unit 156 determines the one with the smaller number as the parking area to display the parking frame 6 with priority. The width and depth of the parking area determined by the determination unit 156 is the size of the parking frame 6. Then, the determination unit 156 sends the determined position and size of the parking frame 6 to the light projection control unit 57. Further, the determination unit 156 of the present embodiment sends out to the data update unit 258 a number identifying the parking area searched from the parking lot information database 504.

  In addition, the determination unit 156 searches the parking lot information database 504, and the vehicle 1 is parked from the entrance to the parking area where the vehicle 1 can be parked, which is determined as the parking area for displaying the parking frame 6 It is determined whether there is a non-parking area that can not secure a sufficient area. If there is a non-parking area from the entrance to the parking area determined as the parking area for displaying the parking frame 6, the determination unit 156 sends the position of the non-parking area to the light projection control unit 57. .

  The data updating unit 258 of the present embodiment updates the occupancy flag and the vehicle number of the parking lot information database 504. More specifically, the data updating unit 258 acquires, from the determining unit 156, a number identifying the parking area in which the parking frame 6 is displayed. Then, the data updating unit 258 changes the occupancy flag associated with the acquired number from “0 (not occupied)” to “1 (occupied)”. The data updating unit 258 also registers the number of the vehicle 1 entering the parking lot recognized by the recognition unit 54 in the parking lot information database 504 as a vehicle number associated with the number acquired from the determination unit 156.

  In addition, when the vehicle 1 parked in the parking lot leaves the parking lot and leaves the parking lot, the data updating unit 258 acquires the number of the vehicle 1 leaving the parking lot from the recognition unit 54. Then, the data updating unit 258 searches the parking lot information database 504 for a vehicle number that matches the number of the vehicle 1. Then, the data updating unit 258 changes the occupancy flag associated with the vehicle number of the search result from “1 (occupied)” to “0 (unoccupied)”. Further, the data update unit 258 deletes the vehicle number of the search result from the parking lot information database 504.

  Next, parking frame display processing by the display device 2100 of the present embodiment configured as described above will be described. FIG. 20 is a flowchart showing an example of the flow of parking frame display processing according to the present embodiment.

  The processes from the process of detecting the vehicle 1 entering the parking lot at S1 to the process of recognizing the number of the vehicle 1 at S4 are the same processes as in the first embodiment.

  Next, the determination unit 156 searches the parking lot information database 504 for a parking area that matches the size of the vehicle 1 (S301). More specifically, the determination unit 156 determines that the occupancy flag is “of the width VW, the length VL, the height VH of the vehicle 1 measured by the measurement unit 53, and each parking area registered in the parking lot information database 504. Compare the position, width, depth and height of each parking area which is 0 (unoccupied). Then, the determination unit 156 searches the parking lot information database 504 as a parking area that matches the size of the vehicle 1 from the area where the area for parking the vehicle 1 can be secured.

  Next, the determination unit 156 determines, from the search result of the parking lot information database 504, an area where the vehicle 1 can secure an area for parking, that is, the presence or absence of a parking area where the vehicle 1 can park (S6). .

  If the parking area matching the size of the vehicle 1 is not obtained as the search result from the parking lot information database 504, the determination unit 156 determines that there is no parking area in which the vehicle 1 can park (S6 "No") ). The flow of processing in the case of S6 "No" is the same as that of the first embodiment.

  In addition, when a parking area matching the size of the vehicle 1 is obtained as a search result from the parking lot information database 504, the determination unit 156 determines that there is a parking area in which the vehicle 1 can park (S6 “Yes "). In the case of S6 "Yes", the process proceeds to the process of displaying the parking frame 6 in S7. The processes from S7 to the process of ending the display in S12 are the same as in the first embodiment.

  Next, the data updating unit 258 updates the parking lot information database 504 (S303). More specifically, the data updating unit 258 acquires the number specifying the parking area for displaying the parking frame 6 from the determination unit 156, and the occupancy flag associated with the number in the parking section information database 504 is “0 Change from (not occupied) to 1 (occupied). Further, the data updating unit 258 registers the number of the vehicle 1 associated with the number acquired from the determining unit 156 in the parking lot information database 504 in association with the number. Here, the processing of this flowchart ends.

  Next, the process at the time of leaving the vehicle 1 by the display device 2100 of the present embodiment configured as described above will be described. FIG. 21 is a flowchart showing an example of the flow of the process of updating the parking lot information database 504 when the vehicle 1 according to the present embodiment leaves.

  The processing from the detection of the vehicle 1 leaving the parking lot in S21 to the processing for recognition of the number of the vehicle 1 in S23 is the same as the occupation information deletion processing in the first embodiment.

  Next, the data updating unit 258 updates (changes) the occupancy flag of the parking lot information database 504 (S324). More specifically, the data updating unit 258 searches the parking lot information database 504 for a vehicle number that matches the number of the exiting vehicle 1. Then, the data updating unit 258 changes the occupancy flag associated with the vehicle number of the search result from “1 (occupied)” to “0 (unoccupied)”. Further, in this case, the data updating unit 258 deletes the vehicle number of the search result from the parking lot information database 504.

  As described above, according to the display device 2100 of the present embodiment, the vehicle 1 can be parked at a location according to the intention of a parking lot manager or the like because the position and size of the parking area are defined in advance. . Further, according to the display device 2100 of the present embodiment, the smaller the number registered in the parking lot information database 504, the more preferentially the parking frame 6 is displayed as the parking area to be displayed. By reflecting the intention more, it is possible to decide where to park the vehicle 1.

  In the present embodiment, as the number registered in the parking lot information database 504 is smaller, the parking frame 6 is preferentially determined as the parking area to be displayed, but the priority condition is not limited to this. For example, the display device 2100 may adopt a configuration in which priority is given to a larger number.

  Further, the configuration of the present embodiment may be combined with the configuration of the second embodiment and the modification. For example, a configuration may be adopted in which the configuration of the control server 205 of the present embodiment is combined with the curb type device 8 of the second embodiment.

  As mentioned above, although the embodiment of the present invention was illustrated, the above-mentioned embodiment and modification are an example to the last, and limiting the scope of the invention is not intended. The above embodiment and modifications can be implemented in other various forms, and various omissions, replacements, combinations, and changes can be made without departing from the scope of the invention. In addition, the configurations and shapes of the embodiments and the modifications may be partially replaced and implemented.

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2a ... Entrance gate apparatus, 2b ... Exit gate apparatus, 3a, 3b ... Camera, 4, 4a-4c, 104, 104a-104d ... Floodlighter, 5, 105, 205 ... Control server, 6, 6a, 6b ... parking frame, 7 ... not parking mark, 8 ... curb type device, 9 ... detector, 21 ... bar, 51, 151, 251 ... storage unit, 52 ... acquisition unit, 53 ... measurement unit, 54 ... recognition unit, 55 ... Gate control unit, 56, 156 ... Determination unit, 57, 157 ... Flooding control unit, 58, 158, 258 ... Data update unit, 71 ... Obstacle, 100, 1100, 2100 ... Display device, 501 ... Parking lot size Information database 502, 1502 ... occupancy information database, 503 ... obstacle information database, 504 ... parking section information database, 900 ... parking section.

Claims (5)

A vehicle detection unit that detects that a vehicle has entered a parking lot;
A light projecting unit that projects light so that a parking frame is displayed in a parking area where the vehicle can be parked when the vehicle is detected;
A display device comprising: A measurement unit that measures the size of the vehicle;
A determination unit that determines the size of the parking area according to the measured size of the vehicle;
The light projecting unit projects light so that the parking frame of the size of the parking area determined by the determining unit is displayed.
The display device according to claim 1. Parking lot size information which is information indicating the width, depth and height of the parking lot, obstacle information which is information indicating the position, width, depth and height of an obstacle existing in the parking lot, and the parking A storage unit for storing occupancy information, which is information indicating the position, width, and depth of an occupancy area where another vehicle is already parked in a parking lot,
The determination unit determines the position and the size of the parking area based on the measured size of the vehicle, the parking lot size information stored in the storage unit, the obstacle information, and the occupancy information. To determine
The display device according to claim 2. The determination unit compares the measured width, length, and height of the vehicle, the parking lot size information stored in the storage unit, the obstacle information, and the occupancy information. In the parking lot, among the areas free of the obstacle and not occupied by other vehicles, a non-parking area where the vehicle can not secure a space for parking is determined.
The light emitting unit projects light so that the non-parking area displays that the area is non-parking possible.
The display device according to claim 3. A parking detection unit that detects the vehicle in the parking area where the light emitting unit displays the parking frame;
A data update unit that registers information indicating the position, width, and depth of the parking area where the detected vehicle is parked in the occupancy information stored in the storage unit when the parking detection unit detects the vehicle And further comprising,
The display device according to claim 3.

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