JP2020140591A - Management server, traffic control system, traffic control method, and traffic control program - Google Patents

Abstract

To provide a management server, a traffic control system, a traffic control method, and a traffic control program capable of efficiently guiding a vehicle in a regulated zone.SOLUTION: A transmitting and receiving unit 101 receives image data, which represents a still image or motion picture showing a regulated zone, from a monitoring camera 300. A vehicle determination unit 102 determines using artificial intelligence on the basis of the received image data whether a vehicle exists in the regulated zone. When a vehicle is determined to exist in the regulated zone, a display change unit 103 does not change display on a display device, which displays a halt instruction, into an advance instruction.SELECTED DRAWING: Figure 1

Description

The present invention relates to management servers, traffic control systems, traffic control methods and traffic control programs.

Conventionally, when carrying out construction work that restricts the use of a part of the road, it is necessary to regulate the passage of vehicles, motorcycles, and people, so it is required to guide the vehicles to pass as smoothly as possible. If efficient guidance is not provided, heavy traffic congestion will occur, and neighboring residents will often be dissatisfied. In order to avoid such a situation, a technique for optimizing the display switching interval of the lighting unit indicating whether or not the road can pass is disclosed based on the detection result of the sensor (see Patent Document 1).

Japanese Patent Application No. 2009-217576

However, in the technique described in Patent Document 1 described above, since the passage of the vehicle is detected by the sensor, it merely detects whether or not the vehicle has passed a predetermined place, and is within the area where traffic is regulated. There was a problem that it was not possible to accurately determine whether or not a vehicle existed.

The present invention has been made in view of the above, and an object of the present invention is to provide a management server, a traffic control system, a traffic control method, and a traffic control program capable of efficiently guiding a vehicle in a regulated area.

In order to solve the above-mentioned problems, in the present invention, in the present invention, image data which is a still image or a moving image of a regulated area is received from a surveillance camera, and a vehicle is moved into the regulated area by using artificial intelligence from the received image data. When it is determined whether or not the vehicle exists and it is determined that the vehicle exists in the regulated area, the display device displaying the stop instruction is not changed to the progress instruction.

As described above, since the present invention changes the display of the display device after confirming the existence of the vehicle in the regulated area, it has an effect that the vehicle can be efficiently guided in the regulated area.

It is a block diagram which shows the structure of the traffic control system 10 which concerns on this Example. It is explanatory drawing which shows an example of the data structure of the stop information storage unit 110. It is a flowchart which shows the traffic control processing procedure which the management server 100 executes. It is explanatory drawing which shows an example of the construction site which carries out one-sided alternating traffic. It is explanatory drawing which shows an example of the time chart of the progress instruction and stop instruction displayed by the display device 400-1 and the display device 400-2. It is a flowchart which shows the branch road interrupt processing procedure executed by management server 100. It is explanatory drawing which shows an example of the construction site which has a main line and a branch road of alternating traffic on one side.

Hereinafter, examples of the present invention will be described with reference to the accompanying drawings. The following description is an example of the embodiment, and the present invention is not limited to these examples.

FIG. 1 is a block diagram showing a configuration of a traffic control system 10 according to this embodiment. As shown in FIG. 1, the traffic control system 10 includes a management server 100, an information processing device 200, a surveillance camera 300-1 to n (hereinafter referred to as a surveillance camera 300), and a display device 400-1 to m (hereinafter referred to as a surveillance camera 300). Hereinafter, it is referred to as a display device 400) and a mobile terminal device 500. The surveillance camera 300 and the display device 400 are connected to the management server 100 via the information terminal device 200. The management server 100 and the information processing device 200 are communicably connected to each other via the network N. The network N is an arbitrary communication network such as the Internet, an intranet, a LAN (Local Area Network), a VPN (Virtual Private Network), a mobile communication network, and a combination thereof, and a part or all thereof may be wired or wireless. You may.

Based on the image data captured by the surveillance camera 300, the management server 100 determines whether to advance the vehicle or the like in the area where traffic is regulated (hereinafter referred to as the regulated area) or stop at the stop line, and the display device 100. It is a server that controls the display of 400. The management server 100 includes a transmission / reception unit 101, a vehicle determination unit 102, a display change unit 103, a timekeeping unit 104, a stop time determination unit 105, and a stop information storage unit 110.

FIG. 2 is an explanatory diagram showing an example of the data structure of the stop information storage unit 110. The stop information storage unit 110 stores the display device ID, which is information for identifying the display device 400, the stop time, and other information in association with each other. The stop time is the time for the display device 400 to display the stop instruction in order for the display device 400 to stop the progress of the vehicle or the like from the direction in which the display device 400 displays the progress instruction or the stop instruction to the vehicle. As other information, when the display device 400 is installed toward the branch road, the progress time for displaying the progress instruction is stored. Details will be described later. Even in the case of one-sided alternating traffic without branch roads, the progress time may be stored and the passage of vehicles or the like may be controlled only by the stop time and the progress time, or the progress time.

The transmission / reception unit 101 transmits / receives data to / from the information processing device 200. More specifically, the transmission / reception unit 101 receives the image data captured by the surveillance camera 300 via the information processing device 200. The transmission / reception unit 101 transmits a display instruction of a progress instruction or a stop instruction to the display device 200 to the display device 200 via the information processing device 200.

The vehicle determination unit 102 determines the vehicle from the image data captured by the surveillance camera 300, and determines whether or not the vehicle exists in the regulated area. The vehicle determination unit 102 determines whether or not the vehicle is stopped at the stop position from the image data captured by the surveillance camera 300. When determining whether or not a vehicle exists in the regulated area or whether or not the vehicle is stopped, the vehicle determination unit 102 determines in advance the teacher data learned from the received image data, deep learning. Judgment is made using artificial intelligence using. The vehicle judgment unit 102 stops whether or not two-wheeled vehicles (motorcycles, bicycles, etc.) and people (including people pushing baby carriages, people in wheelchairs, people with canes, etc.) exist in the regulated area in addition to vehicles. Determine if it is stopped at the position.

The display changing unit 103 changes the display of each of the display devices 400 to a progress instruction or a stop instruction. More specifically, when the display changing unit 103 determines that the stop time stored in the stop information storage unit 110 has elapsed for each of the display devices 400, the display changing unit 103 changes the display of the display device 400 from the stop instruction to the progress instruction. .. However, when the vehicle determination unit 102 determines that the vehicle exists in the restricted area, the display change unit 103 does not change the display of the display device 400 to a progress instruction.

The timekeeping unit 104 changes the display of the display device 400 to a stop instruction for each of the display devices 400, and measures the time elapsed from the time when it is determined that the vehicle does not exist in the regulated area (hereinafter referred to as the elapsed time). ..

The stop time determination unit 105 determines the stop time, which is the time for displaying the stop instruction, for each of the display devices 400 installed for each course in which the vehicle or the like enters the regulated area. More specifically, the stop time determination unit 105 acquires the stop time associated with each of the display devices 400 from the stop information storage unit 110 and determines the stop time. Further, the stop time determination unit 105 counts the number of vehicles passing in each direction by the vehicle determination unit 102 instead of acquiring the stop time from the stop information storage unit 110, and the stop time according to the counted number of vehicles. May be determined. Further, the stop time determination unit 105 is in each direction based on traffic congestion information and map information received from VICS (registered trademark) (Vehicle Information and Communication System) and map information providing service (for example, Google (registered trademark) map API, etc.). The downtime may be determined.

The information processing device 200 is a device having a communication function between the surveillance camera 300, the display device 400, and the management server 100. As shown in FIG. 1, the information processing device 200 is connected to the surveillance camera 300 and the display device 400 by a wireless or wired network. The information processing device 200 transmits the image data received from the surveillance camera 300 to the management server 100. The information processing device 200 transmits a progress instruction or a stop instruction to the display device 400 received from the management server 100 to the display device 400. If the surveillance camera 300 or the display device 400 can directly transmit / receive data to / from the management server 100, the data may be transmitted / received without going through the information processing device 200.

The surveillance camera 300 is a digital camera or analog camera such as one or a plurality of IP cameras that capture an area including a regulated area, and image data such as a still image or a moving image captured by the imaging unit is transmitted via an information processing device 200. And sends it to the management server 100. Only one surveillance camera 300 may be used as long as it can image an area including a regulated area (for example, a semi-sky or full-sky camera is installed at a relatively high position), or an unmanned aerial vehicle equipped with a camera (for example, a semi-sky or full-sky camera). It may be a so-called drone) or the like.

The display device 400 is a device that displays a progress instruction or a stop instruction for a course in which a vehicle or the like travels, and is, for example, a traffic light or an electric bulletin board provided with a red light and a blue light. The display device 400 displays a progress instruction or a stop instruction in response to a progress instruction or a stop instruction received from the management server 100 via the information processing device 200.

The mobile terminal device 500 is a radio such as a transceiver or a smartphone terminal, a mobile phone terminal, a tablet terminal, a wearable computer, or the like possessed by each security guard who guards the regulated area. If the mobile terminal device 500 is a radio device that receives radio radio waves transmitted from the information processing device 200, it receives notification information transmitted from the management server 100 via the information processing device 200 and displays the notification information. If the mobile terminal device 500 is a smartphone terminal or the like, the notification information transmitted from the management server 100 by the mobile communication network or the like is received and displayed.

The traffic control process executed by the management server 100 of the traffic control system 10 configured as described above will be described. FIG. 3 is a flowchart showing a traffic control processing procedure executed by the management server 100. FIG. 4 is an explanatory diagram showing an example of a construction site where one-sided alternating traffic is carried out. In order to make the explanation easy to understand, the processing in the case shown in FIG. 4 will be described. As shown in FIG. 4, the regulated area 41 is indicated by dot hatching, and the construction area 42 and the display device arrangement area 43 are surrounded by the road cone 44.

The transmission / reception unit 101 transmits a stop instruction to the display device 400 in each direction (step S301). The stop instruction is transmitted to the display device 400-1 in the first direction via the information processing device 200, and the display device 400-1 in the first direction displays the stop instruction. Further, the stop instruction is transmitted to the display device 400-2 in the second direction via the information processing device 200, and the display device 400-2 in the second direction displays the stop instruction. The vehicle determination unit 102 analyzes the image data received from the surveillance camera 300 and determines whether or not a vehicle exists in the regulated area 41 (step S302). In FIG. 4, the surveillance camera 300 is mainly the surveillance camera 300-1, but the number of surveillance cameras 300 is not limited to one, and may be multiple. Further, the image data of the surveillance cameras 300-2 and 300-3 in each direction may also be used. When it is determined that the vehicle exists in the regulated area 41 (step S302: Yes), step S302 is repeated, and it is determined whether or not the vehicle exists in the regulated area 41 from the image data received one after another. When it is determined that the vehicle does not exist in the restricted area 41 (step S302: No), the transmission / reception unit 101 transmits a progress instruction to the display device 400-1 in the first direction (step S303).

The timekeeping unit 104 determines whether or not the second stop time has elapsed (step S304). More specifically, whether or not the time counting unit 104 starts the time counting from the time when the progress instruction is transmitted to the display device 400 in the first direction and has elapsed until the second stop time stored in the stop information storage unit 110. To judge. FIG. 5 is an explanatory diagram showing an example of a time chart of a progress instruction and a stop instruction displayed by the display device 400-1 and the display device 400-2. The timekeeping unit 104 determines whether or not the second stop time has elapsed, that is, whether or not the time 51 in FIG. 5 has elapsed. If it is determined that the second stop time has not elapsed (step S304: No), step S304 is repeated. When it is determined that the second stop time has elapsed (step S304: Yes), the transmission / reception unit 101 transmits a stop instruction to the display device 400-1 in the first direction (step S305). In FIG. 5, the change point 52 from the progress instruction to the stop instruction.

The vehicle determination unit 102 analyzes the image data received from the surveillance camera 300 and determines whether or not a vehicle exists in the regulated area 41 (step 306). When it is determined that the vehicle exists in the regulated area 41 (step S306: Yes), step S306 is repeated, and it is determined whether or not the vehicle exists in the regulated area 41 from the image data received one after another. When it is determined that the vehicle does not exist in the restricted area 41 (step S306: No), the transmission / reception unit 101 transmits a progress instruction to the display device 400-2 in the second direction (step S307). In FIG. 5, the change 53 from the stop instruction to the progress instruction.

The timekeeping unit 104 determines whether or not the first stop time has elapsed (step S308). More specifically, has the time counting unit 104 started the time measurement from the time when the progress instruction is transmitted to the display device 400-2 in the second direction, and has passed until the first stop time stored in the stop information storage unit 110? Judge whether or not. It is determined whether or not the time 54 in FIG. 5 has passed. If it is determined that the first stop time has not elapsed (step S308: No), step S308 is repeated. When it is determined that the first stop time has elapsed (step S308: Yes), the transmission / reception unit 101 transmits a stop instruction to the display device 400-2 in the second direction (step S309). In FIG. 5, the change 55 from the progress instruction to the stop instruction.

The stop time determination unit 105 determines whether or not to end the display of the display device 400 (step S310). When it is determined that the display of the display device 400 is finished (step S310: Yes), the process is finished. If it is determined that the display of the display device 400 is not finished (step S310: No), the process returns to step S302 and the process is continued.

In this way, by determining from the image data captured by the surveillance camera 300 that there is no vehicle in the regulated area, the display of the stop instruction and the progress instruction is not switched at the time determined as the normal stop time. After the stop time has elapsed, the stop instruction can be displayed while the vehicle is passing, and after the vehicle has passed through the regulated area, the progress instruction can be displayed without stopping the vehicle for an unnecessary time. As a result, even if there is a regulated area due to construction work or the like and the road is alternately driven on one side, the vehicle can be guided smoothly. In addition, the guidance previously performed by the guards can be performed by the system described above.

In the above-described embodiment, the case of one-sided alternating traffic in the first and second directions has been described, but even in the case of three or more directions, by adding the processing in the direction added to the processing in FIG. Similarly, traffic regulation processing can be performed.

Further, the stop time determination unit 105 determines the stop time based on the actual traffic volume obtained by counting the number of vehicles traveling in each direction by the vehicle determination unit 102, thereby performing more realistic traffic control. Can be done. Further, the stop time determination unit 105 may also calculate the stop time using artificial intelligence by learning data including the day of the week, the time zone, peripheral events, and the like and generating teacher data. Further, the stop time determination unit 105 can perform traffic control in consideration of the surrounding conditions by determining the stop time based on the traffic congestion information received from VICS, the map information providing system, or the like.

As another embodiment, when it is determined in step S304 of FIG. 3 that the vehicle has traveled from the second direction, which is the opposite direction, by analyzing the image data while the vehicle is traveling from the first direction. When it is determined that the construction vehicle or the like has started from the construction area 42, the mobile terminal device 500 possessed by the guard may be notified of the notification information including the location where the vehicle is detected. Further, by receiving an instruction from the mobile terminal device 500 possessed by the guard, a stop instruction may be transmitted to the instructed display device 400 or all the display devices 400.

As another embodiment, in step S304 of FIG. 3, the timekeeping unit 104 uses the vehicle determination unit 102 to start the timekeeping from the time when the progress instruction is transmitted to the display device 400 in the first direction. It may be timed from the time when it is determined that the vehicle has stopped in the second direction. As a result, when the vehicle waiting for progress is not stopped, the vehicle is not changed to the progress instruction, so that the vehicle can pass more efficiently. The process of step S308 is the same.

In the above-described embodiment, it was determined from the image data captured by the surveillance camera 300 whether or not the vehicle exists in the regulated area, but all or part of the surveillance camera 300 was detected by the sensor instead of the sensor. From the information, it may be determined whether or not the vehicle exists in the regulated area.

Next, the traffic control process when there is a branch road on the one-sided alternating traffic road will be described. FIG. 6 is a flowchart showing a branch road interrupt processing procedure executed by the management server 100. FIG. 7 is an explanatory diagram showing an example of a construction site having a main line and a branch road with alternating traffic on one side. In order to make the explanation easy to understand, the process will be described with reference to FIG. 7.

The transmission / reception unit 101 transmits a stop instruction to the display device 400-3 in the third direction (step S601). The stop instruction is transmitted to the display device 400-3 in the third direction via the information processing device 200, and the display device 400-3 in the third direction displays the stop instruction. The vehicle determination unit 102 analyzes the image data received from the surveillance cameras 300-4 and determines whether or not the vehicle has stopped at the third stop line (step S602). If it is determined that the vehicle has not stopped at the third stop line (step S602: No), step S602 is repeated, and whether or not the vehicle has stopped at the third stop line is determined from the image data received one after another. to decide. When it is determined that the vehicle has stopped at the third stop line (step S602: Yes), the timekeeping unit 104 determines whether or not the third stop time has elapsed (step S603). More specifically, the time measuring unit 104 starts the time counting from the time when it is determined that the vehicle has stopped at the third stop line, and determines whether or not the third stop time stored in the stop information storage unit 110 has elapsed. to decide. If it is determined that the third stop time has not elapsed (step S603: No), step S603 is repeated. When it is determined that the third stop time has elapsed (step S603: Yes), the transmission / reception unit 101 issues a stop instruction to the display device 400-1 in the first direction and the display device 400-2 in the second direction. Transmit (step S604).

The vehicle determination unit 102 analyzes the image data received from the surveillance camera 300 and determines whether or not a vehicle exists in the regulated area 71 (step S605). If it is determined that the vehicle exists in the restricted area 71 (step S605: Yes), step S605 is repeated. When it is determined that the vehicle does not exist in the restricted area 71 (step S605: No), the transmission / reception unit 101 transmits a progress instruction to the display device 400-3 in the third direction (step S606). The timekeeping unit 104 determines whether or not the third progress time has elapsed (step S607). More specifically, has the time counting unit 104 started the time counting from the time when the progress instruction is transmitted to the display device 400-3 in the third direction, and has passed until the third progress time stored in the stop information storage unit 110? Judge whether or not. If it is determined that the third progress time has not elapsed (step S607: No), step S607 is repeated. When it is determined that the third stop time has elapsed (step S607: Yes), the traffic control process is returned to the flow of FIG. 6, and the interrupt processes of steps S601 and S602 are executed.

In this way, roads and the like whose traffic volume is significantly different from that of the main line are defined as branch roads, and when it is determined that the vehicle has stopped at the stop line of the branch road, the above processing is executed to make the traffic on the main line inadequate. Vehicles that pass through branch roads can also be controlled to pass within the regulated area without being hindered.

Even if there are two or more branch roads, by executing the branch road interrupt processing shown in FIG. 6 for each branch road, similarly, the passage of vehicles on the main line is not inadvertently obstructed, and Vehicles passing through branch roads can also be controlled to pass within the regulated area.

The hardware configuration of the management server 100, the information processing device 200, etc. according to the above-described embodiment includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), and the like. It is an ordinary computer equipped with an external storage device, a communication control device, and the like, and the above-described configuration and functions are realized by the CPU reading and operating a program stored in a ROM, RAM, HDD, or the like.

The program that operates on the management server 100, the information processing device 200, etc. is stored on a computer connected to the network N such as the Internet, and can be provided by downloading via the network N, or can be installed in a format or execution. A file in a possible format may be recorded and provided on a computer-readable recording medium such as a CD-ROM, DVD, USB memory, or SD card. Further, the program that realizes the above-mentioned functions and processes may be provided in the form of API (Application Programming Interface), SaaS (Software as a Service), or cloud computing.

The present invention is not limited to the above-described embodiment as it is, and does not necessarily have to be physically configured as shown in the figure. Further, the present invention functionally or physically divides, integrates, replaces, transforms or deletes all or a part of the components described in the examples in arbitrary units according to various loads and usage conditions. Can be configured.

N ... Network, 10 ... Traffic control system, 100 ... Management server, 101 ... Transmission / reception unit, 102 ... Vehicle judgment unit, 103 ... Display change unit, 104 ... Timekeeping unit, 105 ... Stop time determination unit, 110 ... Stop information storage unit , 200 ... Information processing device, 300 ... Surveillance camera, 400 ... Display device, 500 ... Portable terminal device

Claims (11)

A management server that connects a surveillance camera that images a regulated area and a display device that displays a progress instruction or a stop instruction to the regulated area via a network.
An image receiving means for receiving image data, which is a still image or a moving image, that captures the regulated area from the surveillance camera,
A vehicle determining means for determining whether or not a vehicle exists in the regulated area by using artificial intelligence from the image data received by the image receiving means.
A display changing means for changing the display of the display device to the progress instruction or the stop instruction is provided.
The management server is characterized in that, when the vehicle determining means determines that a vehicle exists in the regulated area, the display changing means does not change the display of the display device displaying the stop instruction to the progress instruction.
A stop information storage means that stores the display device ID that identifies the display device and the stop time in association with each other.
The display device further includes a time measuring means for measuring the elapsed time, which is the time when the stop instruction is displayed.
The display changing means further receives the first stop time when the elapsed time of the display device installed in the first direction timed by the timekeeping means elapses in the stop time stored in the stop information storage means. Change the display on the display device installed in other than the direction to the stop instruction,
In addition, when it is determined by the vehicle determining means that the vehicle does not exist in the regulated area, the display on the display device installed in one of the directions other than the first direction is changed to the progress instruction.
The management server according to claim 1, further comprising a transmission means for transmitting the stop instruction and the progress instruction changed by the display changing means to each of the display devices.
The vehicle determining means determines whether or not the vehicle has stopped in a predetermined direction, and determines whether or not the vehicle has stopped.
The management server according to claim 2, wherein the timekeeping means measures the elapsed time from the time when the vehicle determination means determines that the vehicle has stopped in the predetermined direction.
Instead of the stop information storage means, the stop time is determined by determining the traffic volume of the vehicle in each direction from the image data and determining the stop time in each direction according to the determined traffic volume of the vehicle in each direction. The management server according to claim 2 or 3, further comprising a determination means.
The management server according to claim 4, wherein the stop time determining means determines the stop time in each direction based on the traffic jam information received from VICS.
The management server according to any one of claims 1 to 5, wherein the vehicle determination means determines whether or not a two-wheeled vehicle exists in addition to the vehicle.
It is further provided with a notification means for notifying an information terminal device connected via the network when it is determined by the vehicle determination means that a vehicle traveling from a direction other than the direction in which the progress instruction is displayed exists. The management server according to any one of claims 1 to 6.
The image receiving means receives the detection data by the sensor instead of the image data, and receives the detection data.
According to any one of claims 1 to 7, the vehicle determining means determines whether or not a vehicle exists in the regulated area by using the detection data received by the image receiving means. The listed management server.
A traffic control system including a surveillance camera, a display device, an information processing device that communicatively connects the surveillance camera and the display device, and a management server that connects the information processing device to the information processing device via a network. ,
The surveillance camera
Imaging means for imaging regulated areas and
An image transmission means for transmitting image data captured by the image pickup means via the information processing device is provided.
The management server
An image receiving means for receiving the image data and
A vehicle determining means for determining whether or not a vehicle exists in the regulated area by using artificial intelligence from the image data received by the image receiving means.
A display changing means for changing the display of the display device to the progress instruction or the stop instruction is provided.
When the vehicle determining means determines that a vehicle exists in the regulated area, the display changing means does not change the display of the display device displaying the stop instruction to the progress instruction.
When it is determined by the vehicle determining means that the vehicle does not exist in the regulated area, the display of the display device is changed to the progress instruction.
A change instruction transmitting means for transmitting the progress instruction changed by the display changing means to the display device is provided.
The display device is
A change instruction receiving means for receiving the progress instruction and
A traffic control system comprising: a display means for displaying the progress instruction in response to the progress instruction received by the change instruction receiving means.
A traffic control method executed by a computer that connects a surveillance camera that images a regulated area and a display device that displays a progress instruction or a stop instruction to the regulated area via a network.
An image receiving step of receiving image data, which is a still image or a moving image, from the surveillance camera, which images the regulated area,
A vehicle determination step of determining whether or not a vehicle exists in the regulated area by using artificial intelligence from the image data received by the image reception step, and a vehicle determination step.
Including a display change step of changing the display of the display device to the progress instruction or the stop instruction.
The display change step is a traffic control characterized in that, when it is determined by the vehicle determination step that a vehicle exists in the restricted area, the display of the display device for displaying the stop instruction is not changed to the progress instruction. Method.
A traffic control program comprising causing a computer to execute the traffic control method according to claim 10.

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