Traffic guidance system, operation terminal, state display method and state display program

Abstract

To perform efficient and proper traffic guidance by preventing a traffic guard, who performs the traffic guidance in a regulation section for construction, from being confused.SOLUTION: In a case where a traffic guard stands on an outbound lane side and monitors a passage situation of vehicles in a regulation section for construction, an operation terminal 40 held by the traffic guard displays a situation of a traffic light 25a installed on an inbound lane in a left end of a screen and displays a situation of a traffic light 25a installed on an outbound lane in a right end of the screen. In a case where the traffic guard moves and stands on an inbound lane side to monitor the passage situation of vehicles in the regulation section for construction, the operation terminal 40 detects a direction the traffic guard faces and changes the display so as to display the situation of the traffic light 25a installed on the inbound lane in the right end of the screen and display the situation of the traffic light 25b installed on the outbound lane in the left end of the screen. Regarding a map to be displayed on the operation terminal 40, a map in the direction the traffic guard faces is also displayed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a traffic guidance system, an operation terminal, a status display method, and a status display program that can provide efficient and appropriate traffic guidance by preventing confusion in understanding the status displayed on the operation terminal of the traffic guidance system for traffic guides who use the traffic guidance system to guide traffic in construction-restricted sections. [Background technology]

[0002] Conventionally, when a city, town, or village uses a road construction company to carry out road construction, traffic control is carried out to ensure smooth passage of vehicles. Specifically, traffic control officers ask drivers of each vehicle for their cooperation and guide the progress of each vehicle smoothly.

[0003] Such traffic controllers are positioned at designated locations at road construction sites and display the status of construction traffic lights on their operation terminals, while visually checking the current status of the road construction work and performing various operations on the operation terminal (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-092474 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, traffic controllers at construction sites do not always stay at a designated location at the construction site, but may change their location depending on road conditions, etc. For example, when a construction vehicle enters or leaves a construction work area, a traffic controller who is on the shoulder of the upbound lane crosses the road and moves to the downbound lane where it is easier to guide the construction vehicle.

[0006] In such a case, the direction of the traffic controller may change, and the display on the operation terminal may be displayed in the opposite direction to the actual arrangement of the construction traffic lights, which may cause confusion when the traffic controller operates the operation terminal. Also, if the direction of the traffic controller and the direction of the screen of the operation terminal differ, the traffic controller must change the direction in his / her mind, which may cause a delay in the traffic controller's understanding of the situation and operation.

[0007] The present invention has been made to solve the problems (issues) of the prior art described above, and aims to provide a traffic guidance system, an operation terminal, a status display method, and a status display program that can prevent confusion among traffic guides who guide traffic in construction-restricted sections and provide efficient and appropriate traffic guidance. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides a traffic guidance system having a plurality of traffic lights which are installed in a predetermined road area on which vehicles travel and which display information related to the right of way of vehicles traveling on said road area, a control device which controls each traffic light to guide vehicles to proceed and stop on said road area, and an operation terminal which displays and sets the status of said control device and said plurality of traffic lights, wherein said operation terminal is characterized in that it is equipped with at least an identification means for identifying the orientation of said operation terminal, and a display control means for controlling the display of a display image on a predetermined display unit with a display orientation corresponding to the orientation of said operation terminal identified by said identification means.

[0009] Furthermore, in the above invention, the present invention is characterized in that the identification means identifies the orientation and inclination of the operation terminal, and the display control means controls the display of a display image on the display unit in a display direction corresponding to the orientation of the operation terminal identified by the identification means in accordance with the inclination of the operation terminal.

[0010] Furthermore, in the above invention, the display control means controls the display of a display image on the display unit in a display direction corresponding to the orientation of the operation terminal identified by the identification means when the inclination of the operation terminal identified by the identification means is within a predetermined range of angles, or when the line of sight is directed toward the operation display unit.

[0011] In addition, the present invention is characterized in that, when the inclination of the operation terminal identified by the identification means in the above invention is within a predetermined range of angles, or when the gaze is directed toward the operation display unit, if the display direction of the display image controlled to be displayed on the display unit changes, a notification to that effect is provided.

[0012] In addition, in the above invention, the present invention is characterized in that the operation terminal is a portable touch panel terminal or a wearable device that remotely displays and sets the status of the control device and the multiple traffic lights.

[0013] In addition, in the above invention, the present invention is characterized in that a display image in which the positions of the vehicle, the traffic light, the control device and / or the operating terminal are superimposed on map data including the road range is displayed on the display unit.

[0014] In addition, in the above invention, the present invention is characterized in that the display control means controls the display of a display image on the display unit in which icons of the vehicle, the traffic light, the control device and / or the operation terminal are superimposed on the positions of the vehicle, the traffic light, the control device and / or the operation terminal on map data including the road range.

[0015] Furthermore, in the above invention, the present invention is characterized in that, when an icon of the traffic light, the control device or the operating terminal displayed and controlled on the display unit is selected, the display control means displays and controls the status of the traffic light, the control device or the operating terminal corresponding to the selected icon.

[0016] Furthermore, in the above invention, the present invention is characterized in that, when the inclination of the operation terminal identified by the identification means is within a predetermined range of angles, or when the gaze is directed toward the operation display unit, the display control means controls the display of each icon displayed on the map to a position on the map corresponding to the respective position information, and controls the display of information related to the traffic light so that it is close to the position of the traffic light re-displayed on the map.

[0017] In addition, in the above invention, the present invention is characterized in that, when an icon of the traffic light or the control device displayed and controlled on the display unit is selected, the display control means displays and controls a setting screen for setting the traffic light or the control device corresponding to the selected icon.

[0018] The present invention also provides an operation terminal which displays and sets the status of a plurality of traffic lights which are installed in a predetermined road area on which vehicles travel and which display information relating to the right of way of vehicles travelling on said road area, and a control device which controls each traffic light to guide vehicles to proceed and stop on said road area, and which is characterized in having an identification means which identifies at least the orientation of the operation terminal, and a display control means which controls the display of a display image on a specified display unit with a display orientation corresponding to the orientation of the operation terminal identified by the identification means.

[0019] The present invention also provides a status display method in a traffic guidance system having a plurality of traffic lights that are installed in a predetermined road area on which vehicles travel and that display information related to the right of way of vehicles traveling on that road area, a control device that controls each traffic light to guide vehicles to proceed and stop on the road area, and an operation terminal that displays and sets the status of the control device and the plurality of traffic lights, characterized in that the operation terminal includes an identification step in which the operation terminal identifies at least the orientation of the operation terminal, and a display control step in which the operation terminal controls the display of a display image with a display orientation corresponding to the orientation of the operation terminal identified by the identification step on a specified display unit.

[0020] The present invention also provides a status display program executed on an operation terminal that displays and sets the status of a plurality of traffic lights that are installed in a predetermined road area on which vehicles travel and that display information related to the right of way of vehicles traveling on that road area, and a control device that controls each traffic light to guide vehicles to proceed and stop on the road area, and is characterized in that the program executes at least an identification procedure that identifies the orientation of the operation terminal, and a display control procedure that controls the display of a display image on a specified display unit with a display orientation corresponding to the orientation of the operation terminal identified by the identification procedure. Effect of the Invention

[0021] According to the present invention, it is possible to prevent confusion among traffic controllers directing traffic in construction-restricted sections, and to provide efficient and appropriate traffic guidance. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is an explanatory diagram of an overview of a traffic guidance system according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing a system configuration of the traffic guidance system according to the embodiment. [Diagram 3] FIG. 3 is a diagram showing an external configuration of the passage management device shown in FIG. [Figure 4] FIG. 4 is a functional block diagram showing the configuration of the passage management device shown in FIG. [Diagram 5] FIG. 5 is a functional block diagram showing a configuration of the control device shown in FIG. [Figure 6] FIG. 6 is a diagram showing an example of the setting data, the signal control data, and the stopped vehicle data shown in FIG. [Figure 7] FIG. 7 is a diagram showing an example of the passing vehicle data shown in FIG. [Figure 8] FIG. 8 is a functional block diagram showing a configuration of the operation terminal shown in FIG. [Figure 9] FIG. 9 is a diagram showing an example of the terminal position data, the device position data, the construction vehicle data, the signal control data, and the stopped vehicle data shown in FIG. [Figure 10] FIG. 10 is a diagram showing an example of the passing vehicle state data and the passing vehicle number data shown in FIG. [Figure 11] FIG. 11 is a diagram showing an example of a display on the operation terminal according to the embodiment. [Figure 12] FIG. 12 is a flowchart (part 1) showing a processing procedure related to display in the operation terminal according to the embodiment. [Figure 13] FIG. 13 is a flowchart (part 2) illustrating a process procedure related to display in the operation terminal according to the embodiment. [Figure 14] FIG. 14 is a diagram showing an example of a display on the operation terminal according to the first modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A traffic guidance system, an operation terminal, a status display method, and a status display program according to the present embodiment will be described in detail below with reference to the drawings.

[0024] [Embodiment] <Outline of the traffic control system> First, an overview of the traffic guidance system according to this embodiment will be described. FIG. 1 is an explanatory diagram for explaining the overview of the traffic guidance system according to this embodiment. In FIG. 1, road construction is being carried out in a construction work area shown as a road consisting of two lanes, one lane on each side, and one lane is unusable due to this road construction. Therefore, a construction restricted section is provided where the remaining lane allows alternating traffic. Note that the respective lanes of the two-lane road will be called the inbound lane and the outbound lane.

[0025] In order to control the passage of vehicles in the restricted construction section, a traffic light 25a is installed at the end of the up-bound lane of the restricted construction section, and a traffic light 25b is installed at the end of the down-bound lane. In addition, a traffic controller who guides the passage of vehicles carries an operation terminal 40 that displays the vehicle traffic status in the restricted construction section.

[0026] As shown in FIG. 1(a), when a traffic controller stands on the down lane to monitor the traffic conditions of vehicles in the construction restricted section, the operation terminal 40 carried by the traffic controller displays the status of traffic light 25a installed on the up lane on the left edge of the screen, and the status of traffic light 25b installed on the down lane on the right edge of the screen.

[0027] For example, when traffic light 25b on the outbound lane is showing a green light, if vehicle C2 has already passed the construction-restricted section on the outbound lane and vehicle C3 is currently passing through, the status of traffic light 25b installed on the outbound lane is displayed as "outbound lane, green, IN2, OUT0," and the status of traffic light 25a installed on the upbound lane is displayed as "upbound lane, red, IN0, OUT1."

[0028] As shown in FIG. 1(b), when a traffic controller moves and stands on the up-bound lane to monitor the traffic status of vehicles in the restricted construction zone, the operation terminal 40 detects the direction in which the traffic controller is facing and changes the display of the status of traffic light 25a installed on the up-bound lane to the right edge of the screen, and the status of traffic light 25b installed on the down-bound lane to the left edge of the screen. This allows the traffic controller's sense of whether each traffic light is installed on the left or right side of the restricted construction zone to match the display direction of the status of each traffic light displayed on the operation terminal 40. The map displayed on the operation terminal 40 also displays the map from the direction in which the traffic controller is facing.

[0029] In this way, the traffic guidance system of this embodiment is configured to detect the direction in which the traffic guide is facing and change the display of the map of the construction restricted section, the status of traffic lights, etc. on the operating terminal to match the direction in which the traffic guide is facing, thereby preventing confusion for the traffic guide who is directing traffic in the construction restricted section and enabling efficient and appropriate traffic guidance.

[0030] <System configuration of traffic guidance system> Next, the system configuration of the traffic guidance system according to this embodiment will be described. Fig. 2 is a diagram showing the system configuration of the traffic guidance system according to this embodiment. As shown in Fig. 2, the passage management device 20 is communicatively connected to the control device 10 using wireless communication. In addition, the control device 10 is communicatively connected to the operation terminal 40 via the converter 50 via wireless communication.

[0031] Note that wireless communication such as specific low power communication is used between the control device 10 and the passage management device 20 and converter 50, and short-range wireless communication such as Bluetooth (registered trademark) is used between the converter 50 and the operation terminal 40. Specific low power communication has a communication distance of several hundred meters to about 1 km, and can widely cover restricted construction zones, but has the characteristic of slow communication speed. Bluetooth (registered trademark) has a short communication distance of about 10 m, but has the characteristic of fast communication speed.

[0032] The control device 10 and the passage management device 20 can be installed at any location within a range where they can wirelessly communicate with each other. Also, the operation terminal 40 can be moved to any location within a range where it can wirelessly communicate with the control device 10 via the converter 50.

[0033] The passage management device 20 is a device that detects vehicles stopped near a stop line and vehicles passing through, and controls the illumination of traffic lights. When the passage management device 20 detects a vehicle stopped near a stop line, it notifies the control device 10 of the detection as stopped vehicle information.

[0034] Furthermore, when the passage management device 20 detects a vehicle entering or exiting a construction restricted section, it notifies the control device 10 of the detection as passing vehicle information. Based on the signal control instruction received from the control device 10, the passage management device 20 switches the traffic light between an entry prohibited state and an entry permitted state to control the lighting.

[0035] The control device 10 is a device that performs signal control of the passage management device 20 and manages information on vehicles related to the construction restricted section. When the control device 10 notifies the passage management device 20 installed on one side of the construction restricted section of a signal control instruction to control the signal to green, the control device 10 notifies the operation terminal 40 of the notification content as signal control information.

[0036] In addition, when a predetermined time has elapsed since the control device 10 notified the passage management device 20 of a signal control instruction to control the signal to a green light, the control device 10 notifies the passage management device 20 of a signal control instruction to control the signal to a red light, and notifies the content of this notification to the operation terminal 40 as signal control information.

[0037] In addition, when a predetermined time has elapsed since the control device 10 notified the passage management device 20 installed on one side of the construction-restricted section of a signal control instruction to control the signal to a red light, the control device 10 notifies the passage management device 20 installed on the opposite side of the construction-restricted section of a signal control instruction to control the signal to a green light.

[0038] Furthermore, when the control device 10 receives stopped vehicle information from the passage management device 20, it notifies the operation terminal 40 of the received information. When the control device 10 receives passing vehicle information from the passage management device 20, it notifies the operation terminal 40 of the received information.

[0039] The converter 50 is a device that relays communication between the control device 10 and the operation terminal 40. If the radio wave intensity in the wireless communication with the control device 10 falls below a predetermined threshold, the converter 50 notifies the operation terminal 40 of radio wave warning information. Furthermore, if the operation terminal 40 receives a radio wave warning notice from the converter 50 or if the radio wave intensity in the wireless communication with the converter 50 falls below a predetermined threshold, the operation terminal 40 notifies a traffic guide of the radio wave warning information.

[0040] The operation terminal 40 is a device that displays information on equipment and vehicles related to construction near the construction restricted section. The operation terminal 40 displays a map of the vicinity of the construction restricted section on the operation display unit. The operation terminal 40 calculates its own position information using the received GNSS (Global Navigation Satellite System) signal, and displays an icon of its own terminal at this position on the map displayed on the operation display unit.

[0041] In addition, the operation terminal 40 calculates the location information of the control device 10 or the passage management device 20 using a GNSS signal received near the control device 10 or the passage management device 20, and displays an icon of the control device 10 or the passage management device 20 at this location on the map displayed on the operation display unit.

[0042] Furthermore, when the operation terminal 40 receives information about a construction vehicle stopped in a construction restricted section, the operation terminal 40 displays the information at a predetermined position on the operation display unit. When the operation terminal 40 receives signal control information from the control device 10, the operation terminal 40 displays the signal control information at a predetermined position on the operation display unit.

[0043] Furthermore, when the operation terminal 40 receives stopped vehicle information from the control device 10, it displays an icon of the stopped vehicle near the icon of the passage management device 20 that detected the stopped vehicle.

[0044] Furthermore, when the operation terminal 40 receives from the control device 10 information on a passing vehicle entering a restricted section for construction work, it displays an icon of the passing vehicle near the icon of the passage management device 20 that detected the passing vehicle. When the operation terminal 40 receives information on a passing vehicle that passes through a passage management device 20 that is controlling the signal to a red light and enters a restricted section for construction work, it highlights the icon related to the vehicle by flashing it, for example.

[0045] Furthermore, the operation terminal 40 calculates the position of a passing vehicle at predetermined time intervals and redisplays the vehicle icon at this position on the map displayed on the operation display unit. When the operation terminal 40 receives from the control device 10 information on a passing vehicle exiting a construction restricted section, it deletes the icon of the leading vehicle from among the displayed icons of passing vehicles.

[0046] Moreover, when the operation terminal 40 receives radio wave warning information from the converter 50, it displays on the operation display unit a message that the radio wave strength is decreasing. Furthermore, the operation terminal 40 calculates the mutual distance using the position information of the terminal itself and the control device 10, and when this distance exceeds a predetermined value, it displays on the operation display unit a message that there is a possibility that the terminal may go out of the communication range.

[0047] Furthermore, when the operation terminal 40 detects that the inclination of its own terminal is within the range of ±30 degrees horizontal and that the change in the direction of its own terminal is 90 degrees or more from the direction when its own terminal was last at ±30 degrees horizontal, it changes the orientation of the displayed map in accordance with this change in direction. At this time, each icon displayed on the map is displayed at a position on the map according to its respective position information. Note that the display position of the operation display unit is set so that information related to traffic lights, such as signal control information, is close to the position of the traffic light of the passage management device 20 redisplayed on the map. Note that the change in the direction of the own terminal is not limited to 90 degrees or more, and may be set to a predetermined angle according to the needs of the traffic guide.

[0048] <External Configuration of Passage Management Device 20> Next, an external configuration of the passage management device 20 shown in Fig. 2 will be described. Fig. 3 is a diagram showing the external configuration of the passage management device 20 shown in Fig. 2. As shown in Fig. 3, the passage management device 20 has a main body having an approaching vehicle detection sensor 21, a passing vehicle detection sensor 22, a display unit 23, and a speaker 24, a traffic light 25 connected to the main body, and legs supporting the main body, with casters 28 and a battery 27 provided on the legs.

[0049] The approaching vehicle detection sensor 21 is a device that detects vehicles approaching a restricted construction section or vehicles that have stopped before entering the restricted construction section. The approaching vehicle detection sensor 21 detects the size, distance, and speed of a vehicle approaching a restricted construction section by emitting radio waves such as millimeter waves and receiving the reflected waves. Alternatively, the approaching vehicle detection sensor 21 detects the type of approaching vehicle and whether or not it is stopped by using the AI ​​function from an image captured by a camera such as an AI camera equipped with an AI function. In this embodiment, a case where detection is performed by a sensor using millimeter waves will be described.

[0050] The passing vehicle detection sensor 22 is a device that detects the passage of vehicles entering and exiting the construction restricted section. The passing vehicle detection sensor 22 emits radio waves such as light or millimeter waves and receives the reflected waves to detect the size and speed of vehicles entering and exiting the construction restricted section. In this embodiment, a case will be described where detection is performed by a sensor that uses millimeter waves.

[0051] The display unit 23 is a display device such as an LED panel. The speaker 24 is an audio output device that outputs a warning sound or a message voice as necessary. The display unit 23 and the speaker 24 are used, for example, to notify a vehicle that has stopped a little away from the stop line of a message such as "Please move forward a little and wait at the stop line."

[0052] The traffic light 25 has a red light that is controlled to be turned on when the entry is prohibited and a blue light that is controlled to be turned on when the entry is permitted. The red light and the blue light can also be made to flash as necessary.

[0053] The battery 27 is used as a power source for the passage management device 20. The casters 28 are provided so as to rotate while the passage management device 20 is inclined on the ground, and are used to assist the movement of the passage management device 20.

[0054] <Configuration of passage management device 20> Next, a description will be given of the configuration of the passage management device 20 shown in Fig. 2. Fig. 4 is a functional block diagram showing the configuration of the passage management device 20 shown in Fig. 2.

[0055] 4, the passage management device 20 has a wireless communication unit 29 and a control unit 26 in addition to the approaching vehicle detection sensor 21, the passing vehicle detection sensor 22, the display unit 23, the speaker 24, and the traffic light 25 already described. The passage management device 20 also has an operation unit 30 for turning the power on and off and setting addresses for wireless communication.

[0056] The wireless communication unit 29 is a communication interface unit for performing wireless communication with the control device 10 using specific low power communication, wireless LAN, LTE (Long Term Evolution) communication, or the like, which are well-known technologies.

[0057] The control unit 26 is a control unit that performs overall control of the passage management device 20, and includes a stopped vehicle detection unit 26a, a passing detection unit 26b, a vehicle guidance unit 26c, and a setting unit 26d. In practice, these programs are loaded into a CPU (Central Processing Unit) and executed, thereby causing the stopped vehicle detection unit 26a, the passing detection unit 26b, the vehicle guidance unit 26c, and the setting unit 26d to execute processes corresponding thereto.

[0058] The stopped vehicle detection unit 26a is a processing unit that performs processing related to detection of a vehicle stopped in front of a restricted construction section. The stopped vehicle detection unit 26a detects the presence or absence of a vehicle stopped near the stop line in front of a restricted construction section and the size of the vehicle using the output of the approaching vehicle detection sensor 21. Then, the stopped vehicle detection unit 26a judges the size of the detected vehicle as a large vehicle, a medium vehicle, or a small vehicle (hereinafter referred to as "vehicle classification") based on a predetermined standard, and notifies the control device 10 of this judgment result together with the name of the device itself as stopped vehicle information. After that, when the approaching vehicle detection sensor 21 transitions from a state in which it detects a stopped vehicle to a state in which it does not detect a stopped vehicle, the stopped vehicle detection unit 26a notifies the control device 10 of information that "there is no stopped vehicle".

[0059] The passing detection unit 26b is a processing unit that performs processing related to detection of the passing of vehicles entering and exiting the restricted construction zone. The passing detection unit 26b detects the size, speed, and movement direction of vehicles entering and exiting the restricted construction zone using the outputs of the approaching vehicle detection sensor 21 and the passing vehicle detection sensor 22. Then, the passing detection unit 26b determines the vehicle classification, and notifies the control device 10 of this determination result together with its own device name, detection time, speed, and movement direction as passing vehicle information.

[0060] The vehicle guidance unit 26c is a processing unit that performs lighting control of the traffic light 25. Based on a signal control instruction received from the control device 10, the vehicle guidance unit 26c controls the passage of vehicles by switching the traffic light 25 between an entry prohibition state and an entry permission state and performing lighting control.

[0061] Furthermore, the vehicle guidance unit 26c can perform vehicle guidance, such as adjusting the stopping position, by outputting a message by the display unit 23 and the speaker 24 as necessary.

[0062] The setting unit 26d is a processing unit that sets an address for wireless communication. The setting unit 26d receives an address to be used in wireless communication with the control device 10 from the operation unit 30, and sets this address in the wireless communication unit 29.

[0063] <Configuration of the control device 10> Next, a description will be given of the configuration of the control device 10 shown in Fig. 2. Fig. 5 is a functional block diagram showing the configuration of the control device 10 shown in Fig. 2. As shown in Fig. 5, the control device 10 has a wireless communication unit 11, a display unit 12, an operation unit 13, a speaker 14, a storage unit 15, and a control unit 16.

[0064] The wireless communication unit 11 is a communication interface unit for performing wireless communication between the passage management device 20 and the converter 50 using specific low power communication, wireless LAN, LTE communication, or the like, which are well-known technologies.

[0065] The display unit 12 is composed of a display device such as an LED panel and is used to display and output to the operator. The operation unit 13 is an input device such as a digital switch and is used to receive operations from the operator. The speaker 14 is an audio output device used to output audio to the operator.

[0066] The storage unit 15 is a storage device formed of a hard disk drive or a non-volatile memory, and stores setting data 15a, signal control data 15b, stopped vehicle data 15c, and passing vehicle data 15d.

[0067] The setting data 15a is data indicating setting values ​​for performing signal control of the passage management device 20. The signal control data 15b is data indicating a current status regarding signal control for the passage management device 20.

[0068] The stopped vehicle data 15c is data indicating information of vehicles stopped at the stop line in front of the passage management device 20. The passing vehicle data 15d is data indicating information of vehicles that have entered or exited a construction restricted section.

[0069] The control unit 16 is a control unit that performs overall control of the control device 10, and includes a setting management unit 16a, a signal control unit 16b, a stopped vehicle management unit 16c, and a passing vehicle management unit 16d. In practice, by loading these programs into a CPU and executing them, the setting management unit 16a, the signal control unit 16b, the stopped vehicle management unit 16c, and the passing vehicle management unit 16d will each execute a process corresponding to the program.

[0070] The setting management unit 16a is a processing unit that manages the setting data 15a. When the setting management unit 16a receives the green light setting time, the red light setting time, and the installation directions of the traffic lights A and B from the operation unit 13, the setting management unit 16a stores the received data in the setting data 15a.

[0071] The signal control unit 16b is a processing unit that performs signal control of the passage management device 20 and manages the signal control data 15b. When the signal control unit 16b notifies a passage management device 20 installed on one side of the construction restricted section (for example, a passage management device 20 installed on the up line) of a signal control instruction to control the signal to green, the signal control unit 16b stores this signal control instruction in the signal control data 15b and notifies the operation terminal 40 of the signal control instruction and the green light setting time of the setting data 15a as signal control information.

[0072] In addition, the signal control unit 16b starts timing from the point at which a signal control instruction to control the signal to a green light is notified to the passage management device 20, and when the green light setting time in the setting data 15a has elapsed, the signal control unit 16b notifies the passage management device 20 of a signal control instruction to control the signal to a red light.

[0073] In addition, when the signal control unit 16b notifies the passage management device 20 of a signal control instruction to control the signal to a red light, the signal control unit 16b stores this signal control instruction in the signal control data 15b and notifies the operation terminal 40 of the signal control instruction and the red light setting time in the setting data 15a as signal control information.

[0074] In addition, the signal control unit 16b starts timing from the point in time when it notifies a passage management device 20 installed on one side of the construction restricted section (for example, a passage management device 20 installed on the up-bound lane) of a signal control instruction to control the signal to a red light, and when the red light setting time in the setting data 15a has elapsed, it notifies a passage management device 20 installed on the opposite side of the construction restricted section (for example, a passage management device 20 installed on the down-bound lane) of a signal control instruction to control the signal to a green light.

[0075] The stopped vehicle management unit 16c is a processing unit that manages the stopped vehicle data 15c. When the stopped vehicle management unit 16c receives stopped vehicle information from the passage management device 20, the stopped vehicle management unit 16c stores the received information in the stopped vehicle data 15c and notifies the operation terminal 40 of the information.

[0076] Furthermore, when the stopped vehicle management unit 16c receives information of "no stopped vehicles" from the passing management device 20, it clears the data related to the detection device of the stopped vehicle data 15c corresponding to this passing management device 20. Then, it notifies the operation terminal 40 of this stopped vehicle data 15c as stopped vehicle information.

[0077] The passing vehicle management unit 16d is a processing unit that manages the passing vehicle data 15d. When the passing vehicle management unit 16d receives passing vehicle information from the passage management device 20, the passing vehicle management unit 16d stores the received information in the passing vehicle data 15d and notifies the operation terminal 40 of the information.

[0078] Next, an example of data stored in the storage unit 15 of the control device 10 shown in Fig. 5 will be described. Fig. 6 and Fig. 7 are diagrams showing examples of the setting data 15a, the signal control data 15b, the stopped vehicle data 15c, and the passing vehicle data 15d shown in Fig. 5.

[0079] The setting data 15a shown in Figure 6(a) indicates a state in which the green light setting time is "90 seconds", the red light setting time is "30 seconds", traffic light A is in the "upbound" direction, and traffic light B is in the "downbound" direction.

[0080] The signal control data 15b shown in FIG. 6(b) indicates a state in which the signal A is in a "red light" state and the signal B is in a "green light" state.

[0081] The stopped vehicle data 15c shown in Figure 6 (c) associates the detection device "traffic light A" with a time of "2023 / 6 / 5 10:20:35" and a vehicle classification of "small vehicle", and associates the detection device "traffic light B" with a time of "-" and a vehicle classification of "-" (i.e., no stopped vehicles).

[0082] The passing vehicle data 15d shown in Figure 7 associates a state in which the detection device is "traffic light B", the direction is "IN", the vehicle classification is "small vehicle", and the speed is "35 km / h" with the time "2023 / 6 / 5 10:20:30", and a state in which the detection device is "traffic light B", the direction is "IN", the vehicle classification is "large vehicle", and the speed is "30 km / h" with the time "2023 / 6 / 5 10:20:40".

[0083] In addition, the passing vehicle data 15d associates the time "2023 / 6 / 5 10:20:50" with a state in which the detection device is "traffic light B", the direction is "IN", the vehicle classification is "medium-sized vehicle", and the speed is "35 km / h", and associates the time "2023 / 6 / 5 10:20:55" with a state in which the detection device is "traffic light A", the direction is "OUT", the vehicle classification is "small vehicle", and the speed is "40 km / h".

[0084] <Configuration of operation terminal 40> Next, a description will be given of the configuration of the operation terminal 40 shown in Fig. 2. Fig. 8 is a functional block diagram showing the configuration of the operation terminal 40 shown in Fig. 2.

[0085] As shown in FIG. 8, the operation terminal 40 includes an operation display unit 41, a GNSS receiving unit 42, an electronic compass 43, an acceleration sensor 44, a camera 45, a speaker 46, a wireless communication unit 47, a storage unit 48, and a control unit 49.

[0086] The operation display unit 41 is an input / output device such as a touch panel display. The GNSS receiving unit 42 is an input device that receives signals from GNSS, which is a global positioning satellite system such as GPS (Global Positioning System) operated by the United States and "Michibiki" operated by Japan.

[0087] The electronic compass 43 is a device that detects a direction by observing the geomagnetism of the earth. The acceleration sensor 44 is a device that detects a change in movement by measuring the acceleration of the movement of the operation terminal 40. The camera 45 is installed on the same surface as the operation display unit 41 and is an image input device that takes pictures.

[0088] The speaker 46 is a voice output device used to output voice to traffic controllers. The wireless communication unit 47 is a communication interface unit for wireless communication with the converter 50 using short-range wireless communication such as Bluetooth (registered trademark), which is a well-known technology.

[0089] The memory unit 48 is a storage device consisting of a hard disk drive or a non-volatile memory, and stores map data 48a, terminal position data 48b, device position data 48c, construction vehicle data 48d, signal control data 48e, stopped vehicle data 48f, passing vehicle status data 48g, and passing vehicle number data 48h.

[0090] The map data 48a is map data used to show road conditions around the construction restricted section. The own terminal position data 48b is data showing the position information of the own terminal. The device position data 48c is data showing the position information of the control device 10 and the passage management device 20.

[0091] The construction vehicle data 48d is data indicating the stopping direction and number of construction vehicles stopped in the construction restricted section. The signal control data 48e is data indicating the current status regarding signal control for the passage management device 20. The stopped vehicle data 48f is data indicating information of vehicles stopped at the stop line in front of the passage management device 20.

[0092] The passing vehicle status data 48g is data indicating information of vehicles that have entered and exited the construction restricted section. The passing vehicle status data 48g includes the passing distance in the construction restricted section and the presence or absence of an abnormality. The passing vehicle number data 48h is data indicating the number of vehicles that have entered and exited the construction restricted section in each of the upbound and downbound directions.

[0093] The control unit 49 is a control unit that performs overall control of the operation terminal 40, and has a terminal location information management unit 49a, an apparatus location information management unit 49b, a construction vehicle information management unit 49c, a signal control information management unit 49d, a stopped vehicle information management unit 49e, a passing vehicle information management unit 49f, a passing distance calculation unit 49g, an abnormal state determination unit 49h, a communication status management unit 49i, an information display control unit 49j, and a display direction control unit 49k. In reality, by loading these programs into a CPU and executing them, the terminal location information management unit 49a, the apparatus location information management unit 49b, the construction vehicle information management unit 49c, the signal control information management unit 49d, the stopped vehicle information management unit 49e, the passing vehicle information management unit 49f, the passing distance calculation unit 49g, the abnormal state determination unit 49h, the communication status management unit 49i, the information display control unit 49j, and the display direction control unit 49k are caused to execute processes corresponding to the terminal location information management unit 49a, the apparatus location information management unit 49b, the construction vehicle information management unit 49c, the signal control information management unit 49d, the stopped vehicle information management unit 49e, the passing vehicle information management unit 49f, the passing distance calculation unit 49g, the abnormal state determination unit 49h, the communication status management unit 49i, the information display control unit 49j, and the display direction control unit 49k.

[0094] The terminal's own position information management unit 49a is a processing unit that manages the terminal's own position data 48b. The terminal's own position information management unit 49a calculates the terminal's own position information at predetermined time intervals (e.g., 5 seconds) using the GNSS signal received from the GNSS receiver 42, the direction detected by the electronic compass 43, and the acceleration detected by the acceleration sensor 44, and stores the calculated position information in the terminal's own position data 48b.

[0095] The device location information management unit 49b is a processing unit that manages the device location data 48c. When the device location information management unit 49b receives an instruction to acquire the location information of the control device 10 or the passage management device 20 from the operation display unit 41, the device location information management unit 49b calculates the location information of the terminal itself using the GNSS signal received from the GNSS receiver 42, and stores the device name received from the operation display unit 41 and the calculated location information in the device location data 48c in association with each other.

[0096] The construction vehicle information management unit 49c is a processing unit that manages the construction vehicle data 48d. When the construction vehicle information management unit 49c receives information about a construction vehicle stopped in a construction restricted section from the operation display unit 41, the construction vehicle information management unit 49c stores this information in the construction vehicle data 48d. The information about the construction vehicles includes the direction and number of construction vehicles. Here, the direction of the construction vehicle means that the construction vehicle can be driven when the traffic light is red in that direction. The number of construction vehicles manages the number of construction vehicles stopped in the construction restricted section for each direction.

[0097] The signal control information management unit 49d is a processing unit that manages the signal control data 48e. When the signal control information management unit 49d receives signal control information from the control device 10, the signal control information management unit 49d stores the information in the signal control data 48e. Then, the signal setting time included in the received signal control information is counted down.

[0098] The stopped vehicle information management unit 49e is a processing unit that manages the stopped vehicle data 48f. When the stopped vehicle information management unit 49e receives the stopped vehicle information from the control device 10, the stopped vehicle information management unit 49e stores the information in the stopped vehicle data 48f.

[0099] The passing vehicle information management unit 49f is a processing unit that manages the passing vehicle status data 48g and the passing vehicle count data 48h. When the passing vehicle information management unit 49f receives passing vehicle information from the control device 10, if the direction of the passing vehicle information is "IN", the passing vehicle information management unit 49f stores the received passing vehicle information in the passing vehicle status data 48g. At this time, the passing section is stored as "passing".

[0100] In addition, when the passing vehicle information management unit 49f receives passing vehicle information from the control device 10, if the direction of this passing vehicle information is "OUT", it extracts the oldest data in the passing vehicle status data 48g for which the passing section is "passing", changes the passing section of this data to "passed", and clears and updates the passing distance and abnormal state.

[0101] Furthermore, when the passing vehicle information management unit 49f receives passing vehicle information from the control device 10, it adds 1 to the corresponding item of the passing vehicle number data 48h to update it. When the passing vehicle information management unit 49f receives signal control information to control the signal to a green light from the control device 10, it clears and updates the passing vehicle number data 48h. The passing vehicle information management unit 49f can update the passing vehicle status data 48g and the passing vehicle number data 48h by operating the operation display unit 41.

[0102] The passing distance calculation unit 49g is a processing unit that calculates the passing distance of a vehicle that has entered a construction restricted section. The passing distance calculation unit 49g extracts data in which the passing section of the passing vehicle status data 48g is "passing" at predetermined time intervals (e.g., 3 seconds), calculates the passing distance of the vehicle using the difference between the time of this data and the current time and the speed, and stores and updates the passing distance of the passing vehicle status data 48g.

[0103] The abnormal state determination unit 49h is a processing unit that determines whether or not there is an abnormal state regarding a vehicle passing through the construction restricted section. If new data is added to the passing vehicle state data 48g during the period from when the abnormal state determination unit 49h receives signal control information for controlling the signal to a red light from the control device 10 until when the abnormal state determination unit 49h receives signal control information for controlling the signal to a green light, the abnormal state determination unit 49h determines that the vehicle related to this data is in an abnormal state and updates the abnormal state of the added data to "present".

[0104] The communication status management unit 49i is a processing unit that manages the status of wireless communication. The communication status management unit 49i receives radio wave intensity of wireless communication from the wireless communication unit 47, and if the radio wave intensity falls below a threshold, displays on the operation display unit 41 that radio waves are no longer reaching the device, and issues a warning sound from the speaker 46.

[0105] In addition, the communication status management unit 49i calculates the distance between its own terminal and the control device 10 using the control device's location data of its own terminal location data 48b and device location data 48c, and if this distance becomes equal to or exceeds a predetermined value (e.g., 300 m), displays on the operation display unit 41 a message indicating that there is a possibility of going out of the communication range, and issues a warning sound from the speaker 46.

[0106] The information display control unit 49j is a processing unit that performs display control regarding the status of passing vehicles and the like in the construction restricted section. The information display control unit 49j displays a map of the vicinity of the construction restricted section on the operation display unit 41 using the map data 48a.

[0107] The information display control unit 49j also displays the following icons superimposed on the displayed map: the icon of the operation terminal 40 is displayed at a position based on the position information of the terminal itself position data 48b, the icon of the control device 10 is displayed at a position based on the position information of the control device in the device position data 48c, the icon of the passage management device 20 is displayed at a position based on the position information of the passage management device in the device position data 48c, and the icon of the vehicle corresponding to the vehicle classification in the stopped vehicle data 48f is displayed at a position corresponding to the detection device in the stopped vehicle data 48f. The icon of the stopped vehicle is displayed with the vehicle classification of the vehicle (for example, "compact car") added.

[0108] In addition, the icon of a vehicle corresponding to the vehicle classification of the passing vehicle status data 48g whose passing classification is "passing" is displayed at a position on the road in the construction restricted section at a passing distance from the detection device of the passing vehicle status data 48g. The icon of the passing vehicle is displayed with the vehicle classification and speed of the vehicle.

[0109] The display of each of the above icons is erased once and then redisplayed each time the corresponding data is updated. Note that the icon of a vehicle related to the passing vehicle status data 48g in which the abnormal state is "present" is highlighted by flashing or the like, and an alarm is sounded from the speaker 46.

[0110] The information display control unit 49j also displays the following information superimposed on the displayed map and icons. Construction vehicle data 48d is displayed at a predetermined position (for example, the lower left position) of the operation display unit 41, and the countdown of the signal setting time being processed by the signal control information management unit 49d is displayed at a predetermined position (for example, the lower right position) of the operation display unit 41. Furthermore, information relating to traffic lights, which is a combination of signal control data 48e and passing vehicle count data 48h, is displayed at the left and right ends of the operation display unit 41 for each classification of traffic lights A and B. At this time, the left and right display positions of the information relating to traffic lights are set so as to be close to the positions of traffic lights A and B displayed on the map.

[0111] The display direction control unit 49k is a processing unit that controls the display direction according to the orientation of the operation terminal 40. The display direction control unit 49k detects the orientation of the operation terminal 40 using the electronic compass 43, and calculates a change from the orientation of the current map displayed by the information display control unit 49j.

[0112] Furthermore, when the inclination of the terminal itself is within the range of horizontal ±30 degrees, the display direction control unit 49k uses the acceleration sensor 44 to change the orientation of the displayed map in accordance with the change in direction calculated above if the change in direction is 90 degrees or more. At this time, each icon displayed on the map is displayed at a position on the map according to the respective position information, while the construction vehicle data 48d and information related to the signal setting time are displayed fixedly at their respective predetermined positions. Note that the display position of the information related to the traffic lights is set to the left or right of the operation display unit 41 so that it is close to the positions of traffic lights A and B redisplayed on the map.

[0113] The display direction control unit 49k may change the orientation of the displayed map when the inclination of the terminal is within the range of ±30 degrees horizontally, or when the face of the traffic guide photographed by the camera 45 faces forward. The orientation of the displayed map may be updated manually by operating a button or the like. When the orientation of the displayed map is changed, an output may be output from the speaker 46 to notify the change, or a display may be displayed on the operation display unit 41 to notify the change.

[0114] Next, an example of data stored in the storage unit 48 of the operation terminal 40 shown in Fig. 8 will be described. Fig. 9 and Fig. 10 are diagrams showing examples of the terminal position data 48b, the device position data 48c, the construction vehicle data 48d, the signal control data 48e, the stopped vehicle data 48f, the passing vehicle state data 48g, and the passing vehicle count data 48h shown in Fig. 8.

[0115] The own terminal location data 48b shown in FIG. 9(a) indicates a state in which the own terminal location data is "35.67710, 139.77320".

[0116] The device position data 48c shown in FIG. 9(b) indicates a state in which the control device is "35.67674, 139.77289", traffic light A is "35.67546, 139.77173", and traffic light B is "35.67839, 139.77381".

[0117] The construction vehicle data 48d shown in FIG. 9(c) indicates that the number of construction vehicles for the "upward" direction is "2", and the number of construction vehicles for the "downward" direction is "1".

[0118] The signal control data 48e shown in FIG. 9(d) indicates a state in which the signal A is in a "red light" state and the signal B is in a "green light" state.

[0119] The stopped vehicle data 48f shown in Figure 9 (e) associates a state in which the detection device "traffic light A" is associated with the time "2023 / 6 / 5 10:20:35" and the vehicle classification is "small vehicle", and associates a state in which the detection device "traffic light B" is associated with the time "-" and the vehicle classification is "-".

[0120] The passing vehicle status data 48g shown in Figure 10 (a) corresponds to the time "2023 / 6 / 5 10:20:30" with the following states: the detection device is "traffic light B", the direction is "IN", the vehicle category is "small vehicle", the speed is "35 km / h", the passed category is "passed", the passed distance is "-", and the abnormal state is "-".

[0121] In addition, the passing vehicle status data 48g corresponds to the time "2023 / 6 / 5 10:20:40" with the detection device being "traffic light B", the direction being "IN", the vehicle category being "large vehicle", the speed being "30 km / h", the passing category being "passing", the passing distance being "400 m", and the abnormal status being "-".

[0122] In addition, the passing vehicle status data 48g corresponds to the time "2023 / 6 / 5 10:20:50" with the detection device being "traffic light B", the direction being "IN", the vehicle category being "medium-sized vehicle", the speed being "35 km / h", the passing category being "passing", the passing distance being "100 m", and the abnormal condition being "present".

[0123] The number of passing vehicles data 48h shown in Figure 10 (b) corresponds to a state in which the number of IN vehicles is "0" and the number of OUT vehicles is "1" for the detection device "traffic light A," and corresponds to a state in which the number of IN vehicles is "3" and the number of OUT vehicles is "0" for the detection device "traffic light B."

[0124] <Example of display on operation terminal 40 according to the embodiment> Next, a description will be given of an example of a display on the operation terminal 40 according to the present embodiment. Fig. 11 is a diagram showing an example of a display on the operation terminal 40 according to the present embodiment.

[0125] 11, the operation terminal 40 displays a map of the vicinity of the construction restricted section on the operation display unit 41, and displays icons of devices such as the control device 10 and vehicles superimposed on this map. For example, near a road shown on the map, an icon of the control device 10 marked "CONTROL", an icon of the passage management device 20 in the shape of a traffic light, and an icon of the operation terminal 40 marked "OWN TERMINAL" are displayed.

[0126] In addition, the icon of a vehicle marked "small car" that is stopped near the icon of the passing management device 20, the icon of a vehicle marked "large car, 30 km / h" that is moving from right to left on the road, and the icon of a vehicle marked "medium car, 35 km / h" are displayed.

[0127] In addition, superimposed on the map and each icon, information related to traffic lights is displayed on the left and right of the screen, information related to the number of construction vehicles is displayed on the bottom left of the screen, and the remaining time until traffic light control is performed is displayed on the bottom right of the screen. The remaining time until traffic light control is performed is displayed as a countdown.

[0128] In addition, if there is a risk of going out of the communication range because the radio wave strength falls below the threshold due to reasons such as the terminal moving away from the control device 10 or radio waves being blocked due to the vehicle's position, the message "There is a risk of going out of the communication range" is displayed in the upper left corner of the screen.

[0129] <Processing procedure related to display in operation terminal 40 according to the embodiment> Next, a process procedure related to the display in the operation terminal 40 according to this embodiment will be described. Fig. 12 and Fig. 13 are flowcharts showing a process procedure related to the display in the operation terminal 40 according to this embodiment. Here, a process procedure related to the display from the signal control to green to the signal control to red for the passage management device 20 installed on one side of the construction restricted section will be described.

[0130] 12 and 13, when the operation terminal 40 receives signal control information for a green signal from the control device 10 (step S101; Yes), it counts and displays the remaining time from the signal set time (step S102). The remaining time displayed here is displayed as a countdown.

[0131] If passing vehicle information about a vehicle entering a construction restricted section is received from the control device 10 (step S103; Yes), a new icon of the vehicle corresponding to the received passing vehicle information is displayed (step S104).

[0132] When passing vehicle information exiting the construction restricted section is received from the control device 10 (step S105; Yes), the icon of the leading passing vehicle that is being displayed is deleted (step S106). Then, the position of the passing vehicle is calculated, and the icon of each vehicle is redisplayed at the calculated position (step S107).

[0133] If stopped vehicle information is received from the control device 10 (step S108; Yes), an icon of the stopped vehicle is displayed in front of the icon of the passage management device 20 corresponding to the received information (step S109). Then, the own terminal information is redisplayed as an icon of the operation terminal 40 (step S110).

[0134] If a predetermined change is detected in the orientation and inclination of the terminal (step S111; Yes), the display direction is changed according to the orientation of the terminal (step S112). If signal control information for a red signal has not been received from the control device 10 (step S113; No), the process proceeds to step S103.

[0135] After receiving signal control information to switch to red (step S113; Yes) from the control device 10, if passing vehicle information about a vehicle entering a restricted section for construction is received (step S114; Yes), a new icon of the vehicle corresponding to the received passing vehicle information is displayed as an abnormal state for the vehicle that has entered (step S115). The abnormal state is displayed by highlighting the icon by flashing it, for example.

[0136] If all passing vehicles have not yet exited the restricted construction section (step S116; No), the process proceeds to step S114. If all passing vehicles have exited the restricted construction section (step S116; Yes), the process ends.

[0137] As described above, the traffic guidance system of this embodiment is configured to detect the direction in which a traffic guide is facing and change the display of the map of the construction restricted section, the status of traffic lights, etc. on the operating terminal to match the direction in which the traffic guide is facing, thereby preventing confusion for the traffic guide who is directing traffic in the construction restricted section and enabling efficient and appropriate traffic guidance.

[0138] In the above embodiment, the configuration has been described in which the status of vehicles passing through the construction restricted section is displayed as icons on a map on the operation terminal, and the number of vehicles that have passed through the passage management device is displayed on the left and right sides of the screen, but the present invention is not limited to this, and the operation terminal may be configured to notify the number of vehicles passing through the construction restricted section by voice. Also, the vehicle classification and speed of passing vehicles may be notified by voice.

[0139] In the above embodiment, the configuration has been described in which the status of the construction restricted section is displayed as an icon on the map in the operation terminal, but the present invention is not limited to this, and it may be configured to display the range visible to the traffic guide. Also, it may be configured to display the display content as a bird's-eye view.

[0140] In addition, in the above embodiment, a configuration was described in which the status of a vehicle passing through a construction-restricted section is displayed as an icon on a map on the operation terminal. However, the present invention is not limited to this, and it is also possible to configure the display to enlarge a specific area on a pre-set map by specifying the area by, for example, tapping on the area.

[0141] In the above embodiment, the control device and the passage management device are displayed as icons on a map in the operation terminal, but the present invention is not limited to this, and the ID information set in the control device and the passage management device can be added to the icon and displayed. The ID information can also be notified by voice.

[0142] In addition, in the above embodiment, a configuration was described in which the control device, passage management device, operation terminal, and vehicle are displayed as icons on a map on the operation terminal, but the present invention is not limited to this, and it is also possible to configure the control device, passage management device, operation terminal, and vehicle to be photographed by a camera and the photographed images to be displayed on a map.

[0143] In the above embodiment, the control device and the passage management device are displayed as icons on a map on the operation terminal, but the present invention is not limited to this, and the image around each device including the control device and the passage management device can be captured by a camera, and the captured image can be displayed in real time on the operation terminal. In this case, the presence or absence of image display can be set for each device.

[0144] In the above embodiment, the control device, the passage management device, and the vehicle are displayed as icons on a map on the operation terminal, but the present invention is not limited to this, and the image of each device and artificial objects and natural objects around the construction restricted section can be captured by a camera, and the captured image can be displayed in real time on the operation terminal. Also, the image of a vehicle stopped or passing through the construction restricted section can be captured by a camera, and the captured image can be displayed in real time on the operation terminal.

[0145] In addition, in the above embodiment, a configuration was described in which the status of the control device and the passage management device are displayed at a specified position on the operation terminal, but the present invention is not limited to this, and it is also possible to configure the device so that the status of the tapped device is displayed in a pop-up by tapping the icon of the control device or passage management device displayed on the map of the terminal device.

[0146] In addition, in the above embodiment, a configuration was described in which the status of the passage management device is displayed at a specified position on the operation terminal, but the present invention is not limited to this, and it is also possible to configure the detection range of the sensor possessed by the passage management device to be displayed in a fan-shaped shape on a map.

[0147] In addition, in the above embodiment, a configuration was described in which the status of the control device and the passage management device are displayed at a specified position on the operation terminal, but the present invention is not limited to this, and it may also be configured so that by tapping on the icon of the control device or passage management device displayed on the map of the terminal device, a screen for changing the settings of the tapped device is displayed.

[0148] In the above embodiment, when a vehicle ignores a red light and enters a restricted construction section, the vehicle is highlighted on the operation terminal as being in an abnormal state, but the present invention is not limited to this. When a vehicle that has been stopped at a red light does not depart even when the light turns green, the vehicle can be highlighted on the operation terminal as being in an abnormal state. In addition, when the position information of the operation terminal cannot be obtained, the vehicle can be highlighted on the operation terminal as being in an abnormal state.

[0149] In the above embodiment, a configuration in which one operation terminal is operated near the restricted construction section has been described, but the present invention is not limited to this, and multiple operation terminals can be operated near the restricted construction section. In this case, the operation display unit of each operation terminal can be configured to display icons of operation terminals other than the terminal itself.

[0150] In addition, in the above embodiment, a configuration was described in which the vehicle classification is displayed in addition to the vehicle icon display, but the present invention is not limited to this, and the vehicle model can also be displayed in addition to the vehicle icon display using the results of identifying the vehicle model using an AI camera or the like.

[0151] In the above embodiment, the speed of the vehicle entering the restricted construction zone is displayed in addition to the icon of the vehicle, but the present invention is not limited to this. A speedometer or the like installed in the restricted construction zone can be used to detect the speed change of the vehicle, and the latest speed of the vehicle can be estimated from the detection result and the road conditions. The estimated speed can be displayed in addition to the icon of the vehicle.

[0152] [Variation 1] In the above embodiment 1, the configuration of displaying information on each device and vehicle on a map in the vicinity of the construction restricted section on the operation terminal has been described, but the present invention is not limited to this. The construction restricted section can also be simplified and displayed in an easy-to-understand manner. In this modification 1, a traffic guidance system that simplifies and displays the construction restricted section in an easy-to-understand manner with respect to the display on the operation terminal will be described with an example of the display.

[0153] <Example of display on operation terminal according to modification example 1> A description will be given of an example of a display on the operation terminal according to the present modified example 1. Fig. 14 is a diagram showing an example of a display on the operation terminal according to the present modified example 1.

[0154] As shown in Fig. 14, the operation terminal according to the present modified example 1 displays the restricted construction section as a simple two-lane road, and displays the construction work area as a pylon icon. The number of vehicles passing through the restricted construction section is displayed as a numerical value on the vehicle icon in the center as "vehicles remaining in the section."

[0155] Information on the traffic lights on the up and down lanes is displayed on the left and right of the screen. Information on the number of construction vehicles is displayed as "construction vehicles" at the bottom of the screen. For example, "02" on the left side of "construction vehicles" indicates that two vehicles are parked in the up direction, and "01" on the right side indicates that one vehicle is parked in the down direction. If one construction vehicle in the up direction enters the construction restricted section, clicking the "+" button once when the up direction is green changes the left side of "construction vehicles" from "02" to "01" and adds one vehicle to the "remaining vehicles in the section" value. If two construction vehicles are added in the down direction, clicking the "-" button twice when the down direction is green changes the right side of "construction vehicles" from "01" to "03" and subtracts two vehicles from the "remaining vehicles in the section" value. In this modified example, "construction vehicles" are displayed only as numbers, but they may also be displayed as icons indicating the vehicle type on the road. Furthermore, the increase or decrease in the number of vehicles may be displayed by the number of icons, or a numerical value may be displayed within the icon.

[0156] The remaining time until the traffic light control is displayed at the bottom of the screen. The remaining time until the traffic light control is displayed as a countdown.

[0157] As described above, the traffic guidance system of this variant example 1 is configured to display on the operation terminal a simplified and easy-to-understand representation of construction-restricted sections, thereby preventing confusion for traffic guides directing traffic through construction-restricted sections and enabling efficient and appropriate traffic guidance.

[0158] [Variation 2] In the above embodiment 1, the configuration in which the operation terminal is a tablet-type terminal has been described, but the present invention is not limited to this, and the operation terminal can also be configured as a wearable terminal such as smart glasses. In this modification 2, a traffic guidance system in which the operation terminal is smart glasses will be described.

[0159] The lens part of the smart glasses, which is the operation terminal according to the present modified example 2, is a transparent display, and the display information is displayed in front of the background in the line of sight through the lens. In addition, the smart glasses detect the line of sight of the traffic controller wearing the smart glasses.

[0160] Also, the smart glasses display icons of each device and vehicle in the construction restricted section on the map, similar to the operation terminal of the first embodiment. Specifically, the icons of each device and vehicle are superimposed on the scene actually seen through the display of the lens part of the smart glasses. The smart glasses detect the line of sight of the traffic control officer and change the direction of the displayed map according to the line of sight.

[0161] In addition, the smart glasses register instantaneous patterns of changes in line of sight in advance, and adjust the map display direction, enlarge or reduce the display, etc. according to these change patterns.

[0162] In addition, when the situation in the construction restricted section cannot be seen directly due to man-made or natural objects in the line of sight, the smart glasses display the status of each device and vehicle related to the construction restricted section that cannot be seen directly with icons. At this time, it can also be configured to display the status of each device, images captured by a camera, and real-time video.

[0163] As described above, the traffic guidance system of this variant example 2 has an operation terminal configured as a wearable terminal such as smart glasses, which prevents confusion for traffic guides directing traffic in construction-restricted sections and enables efficient and appropriate traffic guidance.

[0164] In the above-mentioned variant example 2, a configuration has been described in which a traffic controller located in a construction restricted area wears a wearable device, but the present invention is not limited to this, and the device can also be configured so that a traffic controller located in a location other than the construction restricted area (e.g., a remote management center) wears the device to check the traffic guidance situation.

[0165] Moreover, each configuration illustrated in the above embodiment and modification 1 is merely a functional schematic, and does not necessarily have to be physically configured as illustrated. In other words, the form of distribution and integration of each device is not limited to that illustrated, and all or part of the devices can be functionally or physically distributed and integrated in any unit according to various loads, usage conditions, etc. [Industrial Applicability]

[0166] The traffic guidance system, operation terminal, status display method, and status display program of the present invention are suitable for preventing confusion among traffic guides directing traffic in construction-restricted sections and for providing efficient and appropriate traffic guidance. [Explanation of symbols]

[0167] 10 Control device 11 Wireless Communication Section 12 Display section 13 Control section 14 Speaker 15 Storage section 15a Configuration data 15b Signal control data 15c Stopped vehicle data 15d Passing vehicle data 16 Control section 16a Settings management section 16b Signal control section 16c Stationary Vehicle Management Department 16d Passing Vehicle Management Department 20 Passage control device 21 Approaching vehicle detection sensor 22 Passing vehicle detection sensor 23 Display section 24 Speakers 25, 25a, 25b traffic lights 26 Control Unit 26a Vehicle stop detection unit 26b Passage detection unit 26c Vehicle Guidance Section 26d Setting section 27 Battery 28 Caster 29 Wireless Communication Section 30 Control section 40 Operation terminal 41 Operation display section 42 GNSS receiver 43 Electronic Compass 44 Acceleration Sensor 45 Camera 46 Speaker 47 Wireless Communication Section 48 Memory section 48a Map data 48b Location data of your device 48c Device location data 48d Construction vehicle data 48e Signal Control Data 48f Stopped vehicle data 48g Passing vehicle status data 48h vehicle passing data 49 Control Unit 49a Location information management unit for own terminal 49b Device location information management section 49c Construction Vehicle Information Management Department 49d Signal Control Information Management Department 49e Stopped Vehicle Information Management Department 49f Passing Vehicle Information Management Section 49g Passing distance calculation part 49h Abnormal state judgement section 49i Communication Status Management Department 49j Information display control unit 49k Display direction control unit 50 Converter C1, C2, C3 vehicles

Claims

1. A traffic guidance system comprising: a plurality of traffic lights that are installed in a predetermined road area on which vehicles travel and that display information related to the right of way of vehicles traveling on the road area; a control device that controls each of the traffic lights so as to guide vehicles to proceed and stop on the road area; and an operation terminal that displays and sets the status of the control device and the plurality of traffic lights, The operation terminal includes: An identification means for identifying at least the orientation of the operation terminal; a display control means for controlling the display of a display image in a display direction corresponding to the orientation of the operation terminal specified by the specifying means on a predetermined display unit; A traffic guidance system comprising:

2. The identification means is Identifying the orientation and inclination of the operation terminal; The display control means A display image having a display direction corresponding to the orientation of the operation terminal specified by the specifying means is displayed on the display unit in accordance with a tilt of the operation terminal.

2. The traffic guidance system according to claim 1 .

3. The display control means The traffic guidance system according to claim 2, characterized in that when the inclination of the operation terminal identified by the identification means is within a predetermined range of angles, or when the gaze is directed toward the operation display unit, a display image with a display direction corresponding to the orientation of the operation terminal identified by the identification means is displayed and controlled on the display unit.

4. The display control means The traffic guidance system according to claim 3, characterized in that if the inclination of the operation terminal identified by the identification means is within a predetermined range of angles, or if the line of sight is directed toward the operation display unit, and if the display direction of the display image controlled to be displayed on the display unit changes, a notification is given to that effect.

5. The operation terminal includes: The traffic guidance system according to claim 1, characterized in that the control device and the plurality of traffic lights are remotely displayed and set by a portable touch panel terminal or a wearable device.

6. The display control means The traffic guidance system according to any one of claims 1 to 5, characterized in that a display image in which the positions of the vehicle, the traffic light, the control device and / or the operation terminal are superimposed on map data including the road range is displayed on the display unit.

7. The display control means The traffic guidance system according to claim 6, characterized in that a display image in which icons of the vehicle, the traffic light, the control device and / or the operation terminal are superimposed on the positions of the vehicle, the traffic light, the control device and / or the operation terminal on map data including the road range is displayed on the display unit.

8. The display control means The traffic guidance system according to claim 7, characterized in that when an icon of the traffic light, the control device or the operation terminal displayed on the display unit is selected, the state of the traffic light, the control device or the operation terminal corresponding to the selected icon is displayed and controlled.

9. The display control means The traffic guidance system according to claim 7, characterized in that when the inclination of the operation terminal identified by the identification means is within a predetermined range of angles, or when the gaze is directed toward the operation display unit, each icon displayed on the map is displayed at a position on the map corresponding to the respective position information, and information related to the traffic light is displayed so as to be close to the position of the traffic light re-displayed on the map.

10. The display control means The traffic guidance system according to claim 7, characterized in that when an icon of the traffic light or the control device displayed on the display unit is selected, a setting screen for setting the traffic light or the control device corresponding to the selected icon is displayed.

11. A plurality of traffic lights are installed in a predetermined road area on which vehicles travel, and the traffic lights display information related to the right of way of vehicles traveling on the road area, and an operation terminal displays and sets the status of a control device that controls each of the traffic lights to guide vehicles to proceed and stop on the road area, An identification means for identifying at least the orientation of the operation terminal; a display control means for controlling the display of a display image in a display direction corresponding to the orientation of the operation terminal specified by the specifying means on a predetermined display unit; An operation terminal comprising:

12. A status display method for a traffic guidance system having a plurality of traffic lights that are installed in a predetermined road area on which vehicles travel and that display information related to the right of way of vehicles traveling on the road area, a control device that controls each of the traffic lights to guide vehicles to proceed and stop on the road area, and an operation terminal that displays and sets the status of the control device and the plurality of traffic lights, a determination step of determining at least a direction of the operation terminal; a display control step of controlling the operation terminal to display, on a predetermined display unit, a display image having a display orientation corresponding to the orientation of the operation terminal identified in the identification step; A status display method comprising:

13. A status display program executed on an operation terminal that displays and sets the status of a plurality of traffic lights that are installed in a predetermined road area on which vehicles travel and that display information related to the right of way of vehicles traveling on the road area, and a control device that controls each of the traffic lights to guide vehicles to proceed and stop on the road area, An identification step of identifying at least the orientation of the operation terminal; a display control step of controlling the display of a display image on a predetermined display unit in a display direction corresponding to the orientation of the operation terminal specified by the specification step; A status display program that causes the program to execute the above steps.

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