JP2020129191A - Parking lot management system - Google Patents

Abstract

To obtain a parking lot management system capable of reducing a load on arrangement of a device for detecting presence/absence of a parking vehicle in multiple vehicle chambers and a device for displaying information related to presence/absence of a parking vehicle in the vehicle chambers.SOLUTION: A parking lot management system includes: cameras each of which images an inside of a block consisting of a vehicle road and multiple vehicle chambers arranged on a side part of the vehicle road, so as to output a video signal obtained by imaging the multiple vehicle chambers; and display devices each of which is arranged inside the block and changes a display state when it is determined that vehicles are parked in all the multiple vehicle chambers based on a video signal to be output from the camera.SELECTED DRAWING: Figure 1

Description

The present invention relates to a parking lot management in which a plurality of vehicle compartments, which are parking spaces for each vehicle, are provided on the side of a road, and the driver is notified by detecting whether or not the vehicle compartment is parked. Regarding the system.

A parking space guidance system has been proposed in which an ultrasonic parking position sensor that detects the presence or absence of a parked vehicle is provided in a vehicle compartment that is a parking space for each vehicle (see, for example, Patent Document 1). In the parking space guiding system described in Patent Document 1, the display state of the parking space guiding device provided on the pillar is changed based on the information on the presence/absence of a parked vehicle in each compartment detected by the parking position sensor. .. The parking space guidance device is also called a lighting lamp and is installed in units of a plurality of vehicle compartments.

JP2012-208833A

In the system described in Patent Document 1, a parking position sensor is provided above the parked vehicle for each vehicle compartment, and a nightlight is installed on a pillar that is a boundary between blocks on the side of the road. There is. The system described in Patent Document 1 has a heavy work load when installing the parking position sensor and the night light. Specifically, since the parking position sensor needs to be installed in each vehicle compartment, the installation of the parking position sensor requires work for the number of vehicle compartments, resulting in a large number of work steps. In addition to that, the installation work of the night light is required. Further, when the parking position sensor and the lighting lamp of a part of the existing system are replaced with each other, it is necessary to prohibit the vehicle from entering the target road and to make the passenger compartment empty. For this reason, work is often performed at night in consideration of the convenience of parking users, but the work at night is a heavy burden on the workers. In addition, even when the parking lot is closed at night, it may be parked in the vehicle compartment, which makes it impossible to install the parking position sensor. As described above, in the system described in Patent Document 1, since the degree of freedom of installation work is low, the load on the operator is large, and it is desired to reduce the work load.

Against the background of the above circumstances, for example, in a parking lot such as a medium-sized or large-scale parking lot that requires a parking light, both a sensor for detecting the presence/absence of a parked vehicle in the passenger compartment and a parking light. There was a demand for a system that reduces the load of installation.

The present invention has been made in view of the above problems, and reduces the load of installation work of a device that detects a parked vehicle in a plurality of vehicle compartments and a device that displays information about the parked vehicle in the vehicle compartments. It provides a parking lot management system that can be used.

A parking lot management system according to the present invention is a camera that captures an image of a block including a roadway and a plurality of vehicle compartments provided on a side of the vehicle road, and outputs a video signal obtained by capturing the image of the plurality of vehicle compartments. And a display device which is provided in the block and whose display state is changed when it is determined that the vehicle is parked in all of the plurality of vehicle compartments based on a video signal output from the camera. Be prepared.

According to the present invention, a camera and a display device may be installed one by one in a block composed of a roadway and a plurality of vehicle compartments provided on the side of the road. Will be reduced.

FIG. 3 is a schematic diagram of a parking lot in which the parking lot management system according to the first embodiment is used. 1 is an external view of a vehicle compartment of a parking lot in which the parking lot management system according to the first embodiment is used. It is a figure explaining the monitoring display device used for the parking lot management system which concerns on Embodiment 1. 1 is a system configuration diagram of a parking lot management system according to the first embodiment. FIG. 7 is a system configuration diagram of a parking lot management system according to a second embodiment. FIG. 9 is a system configuration diagram of a parking lot management system according to a third embodiment. FIG. 9 is a system configuration diagram of a parking lot management system according to a fourth embodiment. It is a system configuration diagram of a parking lot management system according to a fifth embodiment. It is a system block diagram of the parking lot management system which concerns on Embodiment 6.

Hereinafter, an embodiment of a parking lot management system according to the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments and can be variously modified without departing from the gist of the present invention. Further, the present invention includes all combinations of configurations that can be combined among the configurations shown in the following respective embodiments. Further, the parking lot management system shown in the drawings shows an example of a device to which the parking lot management system of the present invention is applied, and the applicable devices of the present invention are limited by the parking lot management system shown in the drawings. Not a thing. Further, in the following description, in order to facilitate understanding, terms indicating directions (for example, “up”, “down”, “right”, “left”, “front”, “rear”, etc.) are used as appropriate. These are for illustration purposes only and do not limit the invention. In addition, in each of the drawings, the components denoted by the same reference numerals are the same or correspond to the same, and this is common to all the sentences in the specification. In each drawing, the relative dimensional relationship or shape of each component may differ from the actual one.

Embodiment 1.
(Installation example of parking lot management system)
FIG. 1 is a schematic diagram of a parking lot in which the parking lot management system according to the first embodiment is used. FIG. 1 shows a part of the parking lot viewed from above. Further, FIG. 1 also shows a vehicle 200 parked in a parking lot. In the parking lot, there is a road 103 on which the vehicle 200 travels, and a plurality of vehicle compartments in which the vehicle 200 is parked are provided on the sides of the road 103. In the example of FIG. 1, a vehicle interior 111, a vehicle interior 112, and a vehicle interior 113 are provided on one side of the roadway 103, and a vehicle interior 114, a vehicle interior on the other side of the roadway 103. A room 115 and a vehicle room 116 are provided. Although FIG. 1 shows an example in which three vehicle compartments are provided on one side of the road 103, the number of vehicle compartments is not limited. Further, in the present embodiment, an example in which the vehicle compartments are provided on both sides of the roadway 103 is shown, but the vehicle compartments may be provided only on one side of the roadway 103.

In FIG. 1, the vehicle compartments 111 to 113 on one side of the road 103 are referred to as a first block 101. The vehicle passages 103 and the vehicle compartments 114 to 116 on the other side of the roadway 103 are referred to as a second block 102. The columns 120 are provided at predetermined intervals along the traveling direction of the road 103, and the first block 101 or the second block 102 is provided between the columns 120 adjacent to each other in the traveling direction of the road 103. .. In addition, the roadway 103 and a plurality of vehicle compartments 111 to 116 on both sides thereof are referred to as a composite block 100. A plurality of first blocks 101 and second blocks 102 shown in FIG. 1 may be provided in the parking lot. In the following description, the first block 101 and the second block 102 may be referred to as “blocks” when describing the items common to the first block 101 and the second block 102.

Each of the vehicle interiors 111 to 113 and 114 to 116 is provided with a vehicle interior display 118 for identifying the vehicle interior. The vehicle interior display 118 is a display of numbers, characters, symbols, or a combination thereof unique to each of the vehicle interiors 111 to 113 and 114 to 116. In the example of FIG. 1, the vehicle interior display 118 is provided on the floor of each of the vehicle interiors 111 to 113 and 114 to 116, at a position covered by the vehicle 200 when the vehicle 200 is parked.

Each of the first block 101 and the second block 102 is provided with one monitor display device 1. In the example of FIG. 1, the monitoring display device 1 corresponding to the first block 101 and the monitoring display device 1 corresponding to the second block 102 are installed above the road 103. The monitor display device 1 includes a camera 2 and a display device 3.

FIG. 2 is an external view of a vehicle compartment of a parking lot in which the parking lot management system according to the first embodiment is used. FIG. 2 is a view of the vehicle compartments 111 to 113 on one side of the road 103 as viewed from the road 103 side. The camera 2 and the display device 3 that configure the monitoring display device 1 are installed on the ceiling 130 of the road 103.

(Structure of monitoring display device)
FIG. 3 is a diagram illustrating a monitoring display device used in the parking lot management system according to the first embodiment. The monitoring display device 1 has a camera 2 and a display device 3.

The camera 2 can image the range of the viewing angle θ (see FIG. 1). The viewing angle θ of the camera 2 provided in the first block 101 is an angle including all the vehicle interiors 111 to 113 in the first block 101, as shown in FIG. 1. The viewing angle θ of the camera 2 provided in the second block 102 is an angle including all the vehicle compartments 114 to 116 in the second block 102, as shown in FIG. 1. It should be noted that not all of the vehicle interiors 111 to 113 or the vehicle interiors 114 to 116 may be included in the viewing angle θ. That is, for example, the viewing angle θ of the camera 2 corresponding to the first block 101 does not need to include all the areas of the vehicle interiors 111 to 113, and the area to be parked in each of the vehicle interiors 111 to 113 does not have to be viewed. It may be included in the angle θ. Specifically, for example, the camera 2 provided in the first block 101 has only to be capable of capturing an image of a range of about 30 cm to 70 cm from the floor surface in a region adjacent to the road 103 of the vehicle interiors 111 to 113. The arrangement of the camera 2 on the road 103 shown in FIG. 1 is an example, and the camera 2 can be installed at a position on the road 103 where the viewing angle θ can be secured. For example, the camera 2 on the upper side of the paper illustrated in FIG. 1 may image the vehicle interiors 114 to 116 of the second block 102, and the camera 2 on the lower side of the paper may image the vehicle interiors 113 to 116 of the first block 101. .. When a plurality of cameras 2 are installed on the road 103 as shown in FIG. 1, the positions of the cameras 2 in the traveling direction of the road 103 may be different.

The display device 3 is a device for visually informing a driver of a parking situation in the vehicle compartments 111 to 113 in the first block 101 or the vehicle compartments 114 to 116 in the second block 102. The display device 3 is also referred to as a “lighting lamp” and has a light emitting body such as an LED (Light Emitting Diode). The display device 3 of the present embodiment displays the first display state and the second display state when the vehicle is parked in all of the vehicle compartments in the block and when there is an empty space in one or more of the vehicle compartments in the block. The state can be different. As a specific example of the first display state and the second display state, one is on and the other is off without displaying. Further, the lighting color of the light emitting body may be different between the first display state and the second display state. Further, the display device 3 is provided with a plurality of light-emitting bodies that are independently controlled to light, and the plurality of light-emitting bodies are turned on to express a character or symbol, and the character or symbol is displayed in the first display state and the second display state. You can make it different with. As illustrated in FIG. 1, when two display devices 3 are installed on the road 103, each display device 3 may be installed at a position close to the corresponding vehicle compartment.

(Configuration of parking lot management system)
FIG. 4 is a system configuration diagram of the parking lot management system according to the first embodiment. The parking lot management system 10 includes a monitoring display device 1 and a control device 30. Furthermore, the parking lot management system 10 of the present embodiment includes a power supply device 20 that supplies a power supply voltage to the monitor display device 1. The monitor display device 1 and the power supply device 20 are connected by a LAN (Local Area Network) cable 21 which is a communication cable. The power supply device 20 and the control device 30 are communicatively connected by a communication line 22. The monitor display device 1 of the present embodiment is compatible with PoE (Power over Ethernet (registered trademark)). Although FIG. 4 shows an example in which the power receiving circuit 4 supplies the power supply voltage to both the camera 2 and the display device 3, the power supply voltage may be supplied to the camera 2 and the display device 3 from different devices.

The monitor display device 1 includes a camera 2, a display device 3, a power receiving circuit 4, and a communication circuit 5. The power receiving circuit 4 receives PoE power supply from the power supply device 20 via the LAN cable 21, converts the voltage from the power supply device 20 into a predetermined voltage, and applies the voltage to the camera 2 and the display device 3. That is, the power receiving circuit 4 is shared by the camera 2 and the display device 3. The communication circuit 5 receives communication data input via the LAN cable 21, and outputs a control signal corresponding to the received communication data to the camera 2 and the display device 3. Further, the video signal of the video imaged by the camera 2 is transmitted to the LAN cable 21. The power receiving circuit 4 and the communication circuit 5 are housed in the same housing as the camera 2, housed in the same housing as the display device 3, or housed separately from the camera 2 and the display device 3.

In the present embodiment, the power supply device 20 is a device that supplies PoE power to the monitoring display device 1 and that relays communication between the monitoring display device 1 and the control device 30. The power supply device 20 is connected to the monitor display device 1 via the LAN cable 21, and is connected to the control device 30 via the communication line 22. The communication line 22 may be any line capable of transmitting and receiving signals between the control device 30 and the power supply device 20.

The control device 30 includes a communication unit 31, an image processing unit 32, a control unit 33, and a memory 34. The communication unit 31 is a circuit that receives a signal input via the communication line 22 and transmits a signal to the communication line 22. The control device 30 is composed of, for example, a personal computer, a server device, or the like.

The image processing unit 32 enables the control unit 33 to determine whether or not the vehicle is placed in each of the vehicle interiors 111 to 113 and the vehicle interiors 114 to 116 with respect to the video signal transmitted from the monitor display device 1. Image processing is performed. The image processing unit 32 according to the present embodiment processes the input video signal to provide a vehicle provided in the vehicle interiors 111 to 113 in the first block 101 or the vehicle interiors 114 to 116 in the second block 102. The image information of the room display 118 is extracted. Then, the image processing unit 32 outputs the extracted image information of the vehicle interior display 118 to the control unit 33.

The control unit 33 determines, based on the information input from the image processing unit 32, whether each of the vehicle compartments 111 to 113 or the vehicle compartments 114 to 116 is parked.

The control unit 33 is composed of dedicated hardware or a microcomputer having a memory and a CPU that executes a program stored in the memory. When the control unit 33 is dedicated hardware, the control unit 33 corresponds to, for example, a single circuit, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof. Each functional unit realized by the control unit 33 may be realized by individual hardware, or each functional unit may be realized by one hardware. When the control unit 33 is a microcomputer, each function executed by the control unit 33 is realized by the CPU reading and executing the program stored in the memory. Here, the memory is, for example, a non-volatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM.

The memory 34 stores data used when the image processing unit 32 performs image processing and data used when determining whether the control unit 33 is parked in the vehicle compartments 111 to 113 or the vehicle compartments 114 to 116. Remember. The memory 34 stores, as basic images, images of the vehicle interiors 111 to 113 in the first block 101 and images of the vehicle interiors 114 to 116 in the second block 102 when the vehicle is not parked. The basic image includes the vehicle interior displays 118 of the vehicle interiors 111 to 113 and the vehicle interiors 114 to 116, respectively. The control unit 33 collates the information of the vehicle interior display 118 extracted by the image processing unit 32 with the vehicle interior display 118 of the basic image. Then, when the vehicle interior display 118 in the basic image is not extracted, it is determined that the vehicle interior display 118 is covered, that is, the vehicle interior display 118 is parked in the corresponding vehicle interior. On the other hand, when the vehicle interior display 118 in the basic image is extracted by the image processing unit 32, it is determined that the vehicle interior display 118 is not parked, that is, the corresponding vehicle interior is empty. To do.

It should be noted that the method of determining the parking status in the vehicle interiors 111 to 113 and the vehicle interiors 114 to 116 by the image processing unit 32 and the control unit 33 is not limited to the example illustrated here. Any method may be used as long as it can determine whether or not the vehicle is parked in the vehicle interiors 111 to 113 and the vehicle interiors 114 to 116 based on the video signal transmitted from the camera 2. For example, taking the case of determining the parking status of the vehicle interiors 111 to 113 as an example, an image recognition mark is displayed in the vehicle interiors 111 to 113 instead of the vehicle interior display 118. The image recognition marks may be provided in each of the vehicle interiors 111 to 113, and may be the same mark. Then, in the memory 34, an image when all of the passenger compartments 111 to 113 are empty is stored as a basic image. The image processing unit 32 collates the basic image with the image from the camera 2. If the image recognition mark in the basic image is also present in the image from the camera 2, the control unit 33 determines that one of the vehicle interiors 111 to 113 is empty, and if not, all the vehicle interiors 111. It is determined that the vehicle is parked at ~113, that is, the first block 101 is full.

In addition to this, for example, the image processing unit 32 performs image recognition on the license plates of all vehicle compartments in the first block 101 or the second block 102. Then, when the number of license plates is recognized by the number of vehicle compartments in the first block 101 or the second block 102, the control device 30 determines that the vehicle is full, and the number of recognized license plates is the number of vehicles. If the number of passenger compartments is less than the number of passenger compartments, it is determined that one of the passenger compartments is empty.

The control unit 33 outputs a control signal related to the display on the display device 3 based on the determination result of the parking situation in the vehicle compartment in the first block 101 or the second block 102.

(Operation of parking lot management system 10)
The operation will be described by taking the monitoring display device 1 provided in the first block 101 of FIG. 1 as an example. As illustrated in FIG. 1, it is assumed that the vehicle 200 is parked only in the vehicle interior 112. In this case, the monitor display device 1 transmits the video signal captured by the camera 2 to the control device 30 in real time via the LAN cable 21, the power supply device 20, and the communication line 22. From the camera 2, a video signal in which all of the road 103 and the passenger compartments 111 to 113 in the first block 101 are imaged is transmitted to the control device 30. The control device 30 determines whether or not all the vehicle compartments 111 to 113 in the first block 101 are parked, based on the video signal from the camera 2.

When the vehicle is not parked in any of the passenger compartments 111 to 113, that is, when there is a vacancy in the first block 101, the control device 30 sends a control signal instructing the display in the second display state to the communication unit. It outputs to the communication line 22 via 31. In the example of FIG. 1, since the vehicle is not parked in any part other than the vehicle interior 112, a control signal for instructing the display in the second display state is output to the communication line 22. The control signal output to the communication line 22 is relayed to the power supply device 20, flows through the LAN cable 21, and is received by the communication circuit 5 of the monitor display device 1. The display device 3 performs the display in the second display state based on the received control signal.

On the other hand, when the vehicle is parked in all the vehicle compartments 111 to 113 of the first block 101, that is, when it is detected that the inside of the first block 101 is full, the control device 30 displays the first display state. The control signal for instructing the display at is output to the communication line 22 via the communication unit 31. The control signal output to the communication line 22 is relayed to the power supply device 20, flows through the LAN cable 21, and is received by the communication circuit 5 of the monitor display device 1. The display device 3 performs display in the first display state based on the received control signal. When any of the vehicle compartments 111 to 113 in the first block 101 shown in FIG. 1 has a space and the display device 3 is displaying in the second display state, the vehicle compartments 111 to 113 are full. When it is detected, the display device 3 changes the display from the second display state to the first display state.

As shown in FIG. 1, one monitor display device 1 including a display device 3 having a function as a lighting lamp is installed in a block. Therefore, the driver who has entered the block or the driver who is about to enter the block can pay attention to only one monitor display device 1 to determine whether or not there is a space in the block. Since the target to be noticed is narrowed down, the driver can easily find a vacant block and can easily drive in the parking lot.

Further, in the present embodiment, the display device 3 constituting the monitoring display device 1 is installed on the road 103. Therefore, the display device 3 of the monitor display device 1 is likely to be in the field of view when the driver passing through the road 103 looks straight in the traveling direction. Therefore, the line-of-sight movement of the driver to the left and right for checking the display device 3 as the lighting lamp is suppressed, and the burden of the driver's visual recognition is reduced.

Furthermore, the monitoring display device 1 according to the present embodiment is installed on the road 103. Therefore, when the monitor display device 1 is installed in the existing parking lot, only the entry of the vehicle into the corresponding roadway 103 may be stopped. Even if the vehicle 200 is parked in any of the vehicle interiors 111 to 113 or the vehicle interiors 114 to 116, the installation work of the monitoring display device 1 on the road 103 is unlikely to be disturbed, and the monitoring display device 1 The degree of freedom in terms of time and environment for the installation work of

Furthermore, in the parking lot management system 10 of the present embodiment, the monitoring display device 1 receives PoE power supply. The LAN cable 21 may be connected to the monitor display device 1. Since both the power supply and the communication are realized by the LAN cable 21, the wiring work when the monitor display device 1 is installed in the parking lot is easy.

Embodiment 2.
In the present embodiment, a parking lot management system 10 in which a plurality of monitoring display devices 1 and a control device 30 are connected via a network will be described. In this embodiment, differences from the first embodiment will be mainly described.

FIG. 5 is a system configuration diagram of the parking lot management system according to the second embodiment. In the parking lot management system 10 of the present embodiment, the monitoring display device 1 and the control device 30 are connected via a network 40. In the example of FIG. 5, a plurality of monitoring display devices 1 are connected to one control device 30 via a network 40.

The network 40 performs data communication using a communication protocol. The network 40 may be a local area network (LAN) or a wide area network (WAN). The network 40 may be an intranet or the internet.

In the present embodiment, the video signal captured by the camera 2 of the monitor display device 1 is transmitted to the control device 30 via the network 40. The control signal output from the control device 30 is transmitted to the monitor display device 1 via the network 40. Also in the present embodiment as described above, since one monitoring display device 1 may be installed in the block including the roadway and the passenger compartment provided on the side of the road, the monitoring display device 1 for the parking lot can be installed. The work load for installation is reduced. Further, by connecting the plurality of monitoring display devices 1 to the control device 30 via the network 40, the plurality of monitoring display devices 1 can be controlled by one control device 30. A large-scale parking lot is provided with a plurality of blocks (see FIG. 1), but since the monitoring display device 1 provided corresponding to the plurality of blocks is centrally managed, the efficiency of the entire parking lot is improved. Easy to manage parking.

Embodiment 3.
FIG. 6 is a system configuration diagram of the parking lot management system according to the third embodiment. The monitoring display device 1 of the parking lot management system 10 of the present embodiment includes a battery 6 connected to the camera 2 and a battery 7 connected to the display device 3. The battery 6 supplies a predetermined voltage to the camera 2. The battery 7 supplies a predetermined voltage to the display device 3. The voltage may be supplied to the camera 2 and the display device 3 from one battery. Further, the network 40 of the present embodiment uses wireless communication. The communication circuit 5 of the monitor display device 1 communicates with the control device 30 by wireless communication.

In the present embodiment, the video signal captured by the camera 2 of the monitor display device 1 is transmitted to the control device 30 via the network 40 using wireless communication. The control signal output from the control device 30 is transmitted to the monitor display device 1 via the network 40 using wireless communication. Also in the present embodiment as described above, since one monitoring display device 1 may be installed in the block including the roadway and the passenger compartment provided on the side of the road, the monitoring display device 1 for the parking lot can be installed. The work load for installation is reduced. Further, the camera 2 of the present embodiment receives power supply from the battery 6, the display device 3 receives power supply from the battery 7, and the monitoring display device 1 and the control device 30 perform wireless communication. Therefore, when the monitor display device 1 is installed in the block of the parking lot, wiring to the monitor display device 1 is unnecessary. Therefore, the monitor display device 1 can be easily installed in the parking lot, and the number of man-hours for installation work can be reduced.

Fourth Embodiment
FIG. 7 is a system configuration diagram of the parking lot management system according to the fourth embodiment. The monitoring display device 1 of the parking lot management system 10 of the present embodiment has the same basic configuration as that of the third embodiment, but differs from that of the third embodiment in that it communicates with the control device 30 via the relay device 23. different. The relay device 23 is a device that relays communication between the monitoring display device 1 and the control device 30. In the example of FIG. 7, the monitor display device 1 and the relay device 23 perform wireless communication. Further, the plurality of monitoring display devices 1 are connected to the network 40 via the relay device 23.

In the present embodiment, the video signal captured by the camera 2 of the monitor display device 1 is transmitted to the control device 30 via the network 40. The control signal output from the control device 30 is transmitted to the monitor display device 1 via the network 40. Also in the present embodiment as described above, since one monitoring display device 1 may be installed in the block including the roadway and the passenger compartment provided on the side of the road, the monitoring display device 1 for the parking lot can be installed. The work load for installation is reduced. Further, since the plurality of monitor display devices 1 are connected to the control device 30 via the network 40, the same technical effect as that of the second embodiment can be obtained. Further, since the monitor display device 1 of the present embodiment receives power supply from the battery 6 and the battery 7, it is possible to obtain the same technical effect as that of the third embodiment.

Embodiment 5.
FIG. 8 is a system configuration diagram of the parking lot management system according to the fifth embodiment. The monitoring display device 1 of the present embodiment is connected to the power supply device 20 via a power supply line 24 and connected to the control device 30 via a communication line 22. That is, the monitor display device 1 is connected to the power supply device 20 and the control device 30 by separate lines.

In the present embodiment, the power receiving circuit 4 of the monitor display device 1 is fed from the power feeding device 20 through the power feeding line 24. The video signal captured by the camera 2 of the monitor display device 1 is transmitted to the communication circuit 5 of the control device 30 via the communication line 22. Further, the control signal output from the communication circuit 5 of the control device 30 is transmitted to the monitor display device 1 via the communication line 22. Also in the present embodiment as described above, since one monitoring display device 1 may be installed in the block including the roadway and the passenger compartment provided on the side of the road, the monitoring display device 1 for the parking lot can be installed. The work load for installation is reduced. Although FIG. 8 shows an example in which the power receiving circuit 4 supplies the power supply voltage to both the camera 2 and the display device 3, the power supply voltage may be supplied to the camera 2 and the display device 3 from different devices.

Sixth Embodiment
FIG. 9 is a system configuration diagram of the parking lot management system according to the sixth embodiment. In the first to fifth embodiments, the camera 2 and the display device 3 are separate bodies, but in the present embodiment, the display device 3 and the camera 2 are integrated in one housing. That is, the display device 3 and the camera 2 are installed in the parking lot while being housed in one housing. Note that, one monitor display device 1 is the same as that of the first embodiment in that it is installed in one block including a roadway and a plurality of vehicle compartments provided on the sides thereof. Further, similarly to the first embodiment, the camera 2 is the same as the first embodiment in that it can capture images of a plurality of vehicle compartments provided on the side of the road 103. As the configuration relating to the power supply to the display device 3 and the camera 2, the configuration exemplified in any of the above-described embodiments can be adopted. Further, as the configuration related to the communication between the display device 3 and the camera 2 and the control device 30, those exemplified in any of the above-described embodiments can be used.

Further, the monitoring display device 1 of the present embodiment is configured by integrating the camera 2 and the display device 3. Therefore, when the monitor display device 1 is installed in the parking lot, one integrated device may be installed. Therefore, the work load for installing the monitor display device 1 is reduced. When a sensor for determining the presence or absence of parking is provided for each vehicle compartment as in the conventional case, installation work for the number of vehicle compartments is required to install the sensor. In addition to the installation work, the installation work of the night light was necessary. Therefore, the installation of the sensor and the lighting lamp has been a heavy burden on the installer. In particular, when renewing an existing parking lot, there may be a situation where a parked vehicle exists in the vehicle compartment, and the installation work may be limited in timing. However, according to the present embodiment, only the monitor display device 1 needs to be installed for each composite block 100 in the parking lot, and the burden on the installation operator is reduced.

1 monitor display device, 2 camera, 3 display device, 4 power receiving circuit, 5 communication circuit, 6 battery, 7 battery, 10 parking lot management system, 20 power supply device, 21 LAN cable, 22 communication line, 23 relay device, 24 supply Electric wire, 30 control device, 31 communication unit, 32 image processing unit, 33 control unit, 34 memory, 40 network, 100 composite block, 101 first block, 102 second block, 103 roadway, 111 car room, 112 car room , 113 vehicle compartments, 114 vehicle compartments, 115 vehicle compartments, 116 vehicle compartments, 118 vehicle compartment displays, 120 columns, 130 ceilings, 200 vehicles.

Claims (7)

A camera that images the inside of a block composed of a roadway and a plurality of vehicle compartments provided on the side of the vehicle road, and outputs a video signal that images the plurality of vehicle interiors,
A display device which is provided in the block and whose display state is changed when it is determined that the vehicle is parked in all of the plurality of vehicle compartments based on a video signal output from the camera. Parking management system. The parking lot management system according to claim 1, wherein the camera and the display device are provided integrally or separately. The parking lot management system according to claim 1, wherein the camera and the display device are installed on the road. A power supply device,
A power receiving circuit that is connected to the power feeding device with a communication cable and receives power via the communication cable;
The parking lot management system according to claim 1, wherein the power receiving circuit supplies power to the camera and the display device. Based on a video signal output from the camera, it is determined whether or not the vehicle is parked in each of the plurality of vehicle compartments, and a control device that outputs a control signal according to the determination result to the display device,
The power supply device and the control device are communicatively connected,
The parking lot management system according to claim 4, wherein the control device receives a video signal output from the camera via the power feeding device and transmits a control signal to the display device. The parking lot management system according to claim 1, further comprising a battery that supplies power to either or both of the camera and the display device. If there is a vehicle compartment that is not parked among the plurality of vehicle compartments in the block, the display device performs the first display,
The display device displays a second display different from the first display or does not display when the vehicle is parked in all of the plurality of vehicle compartments in the block. The parking lot management system according to any one of 1.

Images