JP2020091612A - Information providing system, server, and computer program - Google Patents

Abstract

To provide information based on a highly reliable scheduled moving direction.SOLUTION: An information providing system comprises: a detection device which is installed at a road side, for detecting a passerby scheduled to move in a specific scheduled moving direction in a target area; a generation unit by which, in a case where the passerby is detected by the detection device, information of a notification to the passerby is generated on the basis of the scheduled moving direction; and an output unit for outputting the notification information which is generated by the generation unit. Thus, in the case where a passerby is detected by the detection device, notification information based on a highly reliable scheduled moving direction is provided to the passerby.SELECTED DRAWING: Figure 10

Description

The present invention relates to an information providing system, a server, and a computer program.

Patent Document 1 discloses a process in which one or more computing devices receive sensor data describing characteristics of a moving vehicle at a certain point in the past, and the one or more computing devices recognize the prediction feature. A driving feature from the sensor data, the one or more computing devices inputting a forecasting feature into a prediction network, and the one or more computing devices predicting past driver behaviors. A label is generated based on the prediction features using the prediction network; the one or more computing devices input recognition features to a recognition network; and the one or more computing devices , Generating a recognition label for past driver behaviors based on the recognition features using the recognition network; and the one or more computing devices calculating one or more prediction network weights of the prediction network. Training with the recognition label and the predictive label is disclosed. In Patent Document 1, as the above sensor data, various sensors mounted on a moving platform which is a vehicle, for example, various optical sensors (CCD, CMOS, 2D, 3D, LIDAR (light detection and ranging), camera, etc.), Sound sensor, motion detection sensor, barometer, altimeter, thermocouple, humidity sensor, infrared sensor, radar sensor, other optical sensor, gyroscope, accelerometer, speedometer, steering sensor, brake sensor, switch, vehicle display sensor , Front wiper sensor, geo-position sensor, transceiver, sonar sensor, ultrasonic sensor, touch sensor, proximity sensor, any sensor related to CAN data, etc. are disclosed.

JP, 2008-028906, A

The past sensor data from the sensor mounted on the vehicle does not necessarily reflect the future behavior of the driver, and prediction of the driver behavior using the sensor data has a limited prediction accuracy.

The present disclosure includes the following inventions. However, the present invention is defined by the claims.

An information providing system according to an aspect of the present invention includes a detection device that detects a passer-by who is scheduled to move in a specific planned movement direction in a target area, and the movement when the passer-by is detected by the detection device. A generation unit that generates notification information to passers-by based on the planned direction and an output unit that outputs the notification information generated by the generation unit are provided.

A server according to an aspect of the present invention detects a passer-by scheduled to move in a specific planned moving direction in a target area, and when a detection device installed on a roadside detects the passer-by, the detection device detects A receiving unit that receives the output detection signal; a generating unit that, when the detecting signal is received by the receiving unit, generates notification information for a passerby based on the planned moving direction; And a transmitting unit that transmits the notification information generated by.

A computer program according to an aspect of the present invention, in the computer, when detecting a passer-by scheduled to move in a specific scheduled movement direction in the target area, when the detection device installed on the roadside detects the passer-by, Receiving a detection signal output by the detection device; generating a notification information to a passerby based on the planned moving direction when the detection signal is received; and the generated notification. Performing the steps of transmitting information.

The present invention can be realized not only as a server including the above-described characteristic processing unit but also as an information processing method having such characteristic processing as steps, or for causing a computer to execute such steps. Can be realized as a computer program of. Further, part or all of the server can be realized as a semiconductor integrated circuit, or can be realized as an information providing system including the server.

According to the present invention, it is possible to provide highly reliable information based on a planned moving direction.

1 is an overall configuration diagram of a wireless communication system according to an embodiment. It is a block diagram which shows an example of an internal structure of an edge server and a core server. It is a figure which shows the specific example of lane information. It is a figure which shows the specific example of lane information. It is a figure which shows the specific example of lane information. It is a figure which shows the specific example of lane information. It is a figure which shows the specific example of pedestrian crossing information. It is a block diagram showing an example of an internal configuration of an in-vehicle device. It is a block diagram which shows an example of an internal structure of a pedestrian terminal. It is a block diagram which shows an example of an internal structure of a roadside sensor. 1 is an overall configuration diagram of an information providing system according to an embodiment. It is a sequence diagram which shows an example of the update process of dynamic information, action adjustment process, and information distribution process performed by cooperation of a pedestrian terminal, a vehicle, a roadside sensor, and an edge server. It is a functional block diagram which shows an example of the function of the edge server which concerns on embodiment. FIG. 6 is a diagram for explaining an example of determination of action interference by the edge server according to the embodiment. It is a figure for explaining a concrete example of determination of recommended action by an edge server concerning an embodiment. It is a flow chart which shows an example of a procedure of action adjustment processing by an edge server concerning an embodiment. It is a figure for demonstrating the specific example of the notification information produced|generated by the edge server which concerns on a modification.

<Outline of Embodiment of the Present Invention>
Hereinafter, the outline of embodiments of the present invention will be listed and described.

(1) The information providing system according to the present embodiment includes a roadside detection device that detects a passer-by who intends to move in a specific planned movement direction in a target area, and the passer-by detects the passer-by by the detection device. In this case, a generation unit that generates notification information to a passerby based on the planned moving direction and an output unit that outputs the notification information generated by the generation unit are provided. Thereby, when the passerby is detected by the detection device, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

(2) In the information providing system according to the present embodiment, the passerby is a vehicle, and the detection device is a vehicle detector that detects the vehicle in the lane for the vehicle to travel in the planned movement direction. May be. For example, a vehicle in a lane for traveling in a specific planned traveling direction such as a right-turn dedicated lane, a left-turn dedicated lane, or a straight-ahead dedicated lane is likely to move in the planned traveling direction. Therefore, when the vehicle is detected by the vehicle detector, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

(3) Further, in the information providing system according to the present embodiment, the pedestrian may be a pedestrian, and the detection device may be a push button type traffic signal installed on a pedestrian crossing extending in the planned moving direction. .. A pedestrian who presses the button of the push-button type traffic signal is likely to cross the pedestrian crossing where the traffic signal is installed. Therefore, when a pedestrian is detected by the push button type traffic light, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

(4) Further, in the information providing system according to the present embodiment, when the detection device detects the passer-by, whether or not actions of a plurality of passers-by interfere with each other based on the planned moving direction. Further comprising a determining unit that determines, and a determining unit that determines a recommended action for avoiding the action interference to the passerby when the action is determined to interfere with each other by the determining unit, The notification information may be information indicating the recommended behavior determined by the determination unit. It is possible to obtain a highly reliable determination result by determining whether or not the actions of a plurality of passers-by interfere with each other based on the highly reliable planned movement direction. Therefore, the notification information indicating the appropriate recommended behavior can be provided to the passerby.

(5) The server according to the present embodiment detects the passer-by, which detects a passer-by scheduled to move in a specific movement-scheduled direction in the target area, and detects the passer-by when the detection device installed on the roadside detects the passer-by. A receiving unit that receives a detection signal output by the receiving unit; a generating unit that generates notification information to a passerby based on the planned moving direction when the detecting signal is received by the receiving unit; A transmitting unit that transmits the notification information generated by the unit. Thereby, when the passerby is detected by the detection device, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

(6) The computer program according to the present embodiment causes the computer to detect a passer-by scheduled to move in a specific scheduled movement direction in the target area, when a detection device installed on the roadside detects the passer-by. A step of receiving a detection signal output by the detection device; a step of generating notification information to a passerby based on the planned moving direction when the detection signal is received; And a step of transmitting the notification information. Thereby, when the passerby is detected by the detection device, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

<Details of the embodiment of the present invention>
Hereinafter, the details of the embodiment of the present invention will be described with reference to the drawings. Note that at least a part of the embodiments described below may be arbitrarily combined.

[Overall configuration of wireless communication system]
FIG. 1 is an overall configuration diagram of a wireless communication system according to this embodiment.
As illustrated in FIG. 1, the wireless communication system according to the present embodiment includes a plurality of communication terminals 1A to 1F capable of wireless communication, one or a plurality of base stations 2 wirelessly communicating with the communication terminals 1A to 1F, and a base station 2. It includes one or more edge servers 3 that communicate by wire or wireless, and one or more core servers 4 that communicate with the edge server 3 by wire or wirelessly.

The core server 4 is installed in the core data center (DC) of the core network. The edge server 3 is installed in a distributed data center (DC) of the metro network.
The metro network is a communication network constructed for each city, for example. Each metro network is connected to the core network.
The base station 2 is communicatively connected to one of the edge servers 3 of the distributed data center included in the metro network.

The core server 4 is communicatively connected to the core network. The edge server 3 is communicatively connected to the metro network. Therefore, the core server 4 can communicate with the edge server 3 and the base station 2 belonging to each metro network via the core network and the metro network.
The base station 2 includes at least one of a macro cell base station, a micro cell base station, and a pico cell base station.

In the wireless communication system of this embodiment, the edge server 3 and the core server 4 are general-purpose servers capable of SDN (Software-Defined Networking). The base station 2 and a relay device such as a repeater (not shown) are transport devices capable of SDN.
Therefore, a plurality of virtual networks (network slices) S1 to S4 satisfying conflicting service requirements such as low-delay communication and large-capacity communication should be defined as physical devices of a wireless communication system by network virtualization technology. You can

The above-mentioned network virtualization technology is a basic concept of "fifth generation mobile communication system" (hereinafter, abbreviated as "5G" (5th Generation)), which is currently being standardized. Therefore, the wireless communication system of this embodiment is composed of, for example, 5G.
However, the wireless communication system of the present embodiment is a mobile communication system capable of defining a plurality of network slices (hereinafter, also referred to as “slices”) S1 to S4 according to a predetermined service request condition such as a delay time. Well, it is not limited to 5G. Further, the layers of the slices to be defined are not limited to four layers and may be five layers or more.

In the example of FIG. 1, each network slice S1 to S4 is defined as follows.
The slice S1 is a network slice defined so that the communication terminals 1A to 1F directly communicate with each other. The communication terminals 1A to 1F that communicate directly with the slice S1 are also referred to as "node N1".
The slice S2 is a network slice defined so that the communication terminals 1A to 1F communicate with the base station 2. The highest communication node (base station 2 in the illustrated example) in slice S2 is also referred to as "node N2".

The slice S3 is a network slice defined so that the communication terminals 1A to 1F communicate with the edge server 3 via the base station 2. The highest communication node (edge server 3 in the illustrated example) in slice S3 is also referred to as "node N3".
In slice S3, node N2 serves as a relay node. That is, data communication is performed through the uplink route of node N1→node N2→node N3 and the downlink route of node N3→node N2→node N1.

The slice S4 is a network slice defined so that the communication terminals 1A to 1F communicate with the core server 4 via the base station 2 and the edge server 3. The highest-level communication node (core server 4 in the illustrated example) in slice S4 is also referred to as "node N4".
In the slice S4, the nodes N2 and N3 serve as relay nodes. That is, data communication is performed through the uplink route of node N1→node N2→node N3→node N4 and the downlink route of node N4→node N3→node N2→node N1.

In the slice S4, the edge server 3 may be a routing node that does not serve as a relay node. In this case, data communication is performed through the uplink route of node N1→node N2→node N4 and the downlink route of node N4→node N2→node N1.

When a plurality of base stations 2 (node N2) are included in the slice S2, routing for tracing communication between the base stations 2 and 2 is also possible.
Similarly, when a plurality of edge servers 3 (node N3) are included in the slice S3, routing for tracing communication between the edge servers 3 and 3 is also possible. When a plurality of core servers 4 (node N4) are included in the slice S4, routing that follows the communication of the core servers 4 and 4 is also possible.

The communication terminal 1A includes a wireless communication device mounted on the vehicle 5. The vehicle 5 includes not only an ordinary passenger vehicle but also a public vehicle such as a route bus or an emergency vehicle. The vehicle 5 may be a two-wheeled vehicle (motorcycle) as well as a four-wheeled vehicle.
The drive system of the vehicle 5 may be any of an engine drive, an electric motor drive, and a hybrid system. The driving method of the vehicle 5 may be either normal driving in which the driver performs an operation such as acceleration/deceleration or steering of the steering wheel, or automatic driving in which the operation is executed by software.

The communication terminal 1A of the vehicle 5 may be an existing wireless communication device in the vehicle 5, or may be a mobile terminal carried by the passenger into the vehicle 5.
The passenger's portable terminal is temporarily connected to an in-vehicle LAN (Local Area Network) of the vehicle 5 to temporarily become an in-vehicle wireless communication device.

The communication terminal 1B is a mobile terminal carried by the pedestrian 7. The pedestrian 7 is a person who walks outdoors such as a road or a parking lot, or indoors such as a building or an underground mall. The pedestrian 7 includes not only a person who walks, but also a person who rides on a bicycle that does not have a power source.
The communication terminal 1C includes a wireless communication device mounted on the roadside sensor 8. The roadside sensor 8 is composed of an image-type vehicle detector installed on the road, a security camera installed outdoors or indoors, and the like. The communication terminal 1D includes a wireless communication device mounted on the traffic signal controller 9 at the intersection.

The communication terminal 1E includes a wireless communication device mounted on the vehicle detector 10 installed on the roadside. The vehicle detector 10 is mounted above the road and detects the vehicle 5 traveling in the lower lane. The vehicle detector 10 can be, for example, an ultrasonic or optical vehicle detector. Further, the vehicle detector 10 may have a configuration capable of detecting only the vehicle 5 traveling in one target lane, or a configuration capable of detecting the vehicle 5 traveling in each of a plurality of lanes. Good. For example, the configuration may be such that three vehicle detectors 10 detect a vehicle 5 traveling in each of the three lanes of a left turn dedicated lane, a straight ahead dedicated lane, and a right turn dedicated lane, or one vehicle. The sensor 10 may detect the vehicle 5 traveling in each of these three lanes.
The communication terminal 1F includes a wireless communication device mounted on a pedestrian push-button type traffic signal 11 installed at an intersection.

The service requirements for the slices S1 to S4 are as follows. The delay times D1 to D4 allowed for the slices S1 to S4 are defined so that D1<D2<D3<D4. For example, D1=1 ms, D2=10 ms, D3=100 ms, D4=1 s.
The data communication amounts C1 to C4 per predetermined period (for example, one day) allowed for the slices S1 to S4 are defined so that C1<C2<C3<C4. For example, C1=20 GB, C2=100 GB, C3=2 TB, and C4=10 TB.

As described above, in the wireless communication system of FIG. 1, direct wireless communication in the slice S1 (for example, “vehicle-to-vehicle communication” in which the communication terminal 1A of the vehicle 5 directly communicates) and slices via the base station 2 The wireless communication of S2 is possible.
However, in the present embodiment, an information providing service for users included in a relatively wide service area (for example, an area including municipalities or prefectures) using the slices S3 and S4 in the wireless communication system of FIG. 1 is provided. I'm assuming.

[Internal configuration of edge server and core server]
FIG. 2 is a block diagram showing an example of the internal configuration of the edge server 3 and the core server 4.
As shown in FIG. 2, the edge server 3 includes a control unit 31 including a CPU (Central Processing Unit), a ROM (Read Only Memory) 32, a RAM (Random Access Memory) 33, a storage unit 34, a communication unit 35, and the like. Equipped with.

The control unit 31 controls the operation of each hardware by reading one or a plurality of programs stored in advance in the ROM 32 into the RAM 33 and executing the programs, and enables the computer device to communicate with the core server 4, the base station 2, and the like. Make it function as an edge server.
The RAM 33 is composed of a volatile memory element such as SRAM (Static RAM) or DRAM (Dynamic RAM), and temporarily stores a program executed by the control unit 31 and data necessary for the execution.

The storage unit 34 is configured by a nonvolatile memory element such as a flash memory or an EEPROM (Electrically Erasable Programmable Read Only Memory), or a magnetic storage device such as a hard disk.
The communication unit 35 includes a communication device that executes communication processing compatible with 5G, and communicates with the core server 4, the base station 2, and the like via the metro network. The communication unit 35 transmits the information given from the control unit 31 to the external device via the metro network, and gives the information received via the metro network to the control unit 31.

As illustrated in FIG. 2, the storage unit 34 of the edge server 3 stores a dynamic information map (hereinafter, also simply referred to as “map”) M1 in a target area such as an intersection, a road, or a parking lot.
The map M1 is a collection of data (virtual database) in which dynamic information that changes from moment to moment is superimposed on a high-definition digital map that is static information. The digital information forming the map M1 includes the following "dynamic information", "quasi-dynamic information", "quasi-static information", and "static information".

“Dynamic information” (up to 1 second) is dynamic data that requires a delay time of 1 second or less. For example, the position information of a moving body (vehicle, pedestrian, etc.), signal information, and the like, which are utilized as ITS (Intelligent Transport Systems) prefetch information, correspond to the dynamic information.
The “quasi-dynamic information” (up to 1 minute) is semi-dynamic data that requires a delay time of 1 minute or less. For example, accident information, traffic jam information, and narrow area weather information correspond to the semi-dynamic information.

“Quasi-static information” (up to 1 hour) is quasi-static data that allows a delay time of 1 hour or less. For example, traffic regulation information, road construction information, wide area weather information, and the like correspond to quasi-static information.
“Static information” (up to one month) is static data that allows a delay time of one month or less. For example, road surface information, lane information, three-dimensional structure data, etc. correspond to static information.

The control unit 31 of the edge server 3 updates the dynamic information of the map M1 stored in the storage unit 34 every predetermined update cycle (dynamic information update processing).
Specifically, the control unit 31 outputs various sensor information measured by the vehicle 5, the roadside sensor 8 and the like in the service area of the own device from each of the 5G-compatible communication terminals 1A to 1F at a predetermined update cycle. The dynamic information of the map M1 is updated based on the collected sensor information.

The control unit 31 of the edge server 3 can collect the sensor information measured by the vehicle 5, the roadside sensor 8, and the pedestrian terminal 70 at predetermined intervals.
The sensor information of the vehicle 5 includes high-definition image data (may be a moving image), vehicle CAN (Controller Area Network) information, and the like. The image data of the vehicle 5 is image data of the surroundings of the vehicle 5 taken by the vehicle-mounted camera 59. In the case of the vehicle 5 having the in-vehicle camera, the image data of the driver may be included.

The sensor information of the roadside sensor 8 includes high-definition image data (may be a moving image). The image data is image data of a predetermined photographing area photographed by the roadside camera 83.

The sensor information of the pedestrian terminal 70 includes a pedestrian (own device) position by GPS, acceleration by an acceleration sensor, azimuth by a gyro sensor, and the like.

The control unit 31 of the edge server 3 detects when the vehicle detector 10 detects the vehicle 5 and when the push-button type traffic signal 11 detects the pedestrian 7 (that is, when the push button is pressed). It is possible to collect the detection signal output to () every predetermined period.

The storage unit 34 of the edge server 3 stores lane information R1 and pedestrian crossing information C1. The lane information R1 is information about lanes in the target area, and the pedestrian crossing information C1 is information about pedestrian crossings in the target area. In a specific example, the lane information R1 is information in which a lane ID and a planned moving direction are associated with each other. In a specific example, the crosswalk information C1 is information in which the push button ID and the planned movement direction are associated with each other.

3A to 3D are diagrams showing specific examples of the lane information R1. As shown in FIG. 3A, in the case of one lane in which each of a left turn, a straight turn and a right turn is possible, in the lane information R1, the lane ID: 1 and the planned movement direction “left turn, straight turn, right turn” are associated. ..

As shown in FIG. 3B, in the case of a lane dedicated to left turn and straight lane and a lane dedicated to right turn, in the lane information R1, the lane ID: 1 is associated with the planned movement direction “left turn, straight ahead”, and the lane ID: 2 And the planned movement direction “turn right” are associated with each other.

As shown in FIG. 3C, in the case of a lane dedicated to left turn and a lane for straight and right turn, in the lane information R1, the lane ID: 1 and the planned movement direction “left turn” are associated with each other, and the lane ID: 2, The planned movement direction “straight ahead, right turn” is associated.

As shown in FIG. 3D, in the case of a lane dedicated to left turn, a lane dedicated to straight ahead, and a lane dedicated to right turn, in the lane information R1, the lane ID: 1 and the planned movement direction “left turn” are associated with each other, and the lane ID : 2 is associated with the planned movement direction “straight ahead”, and lane ID: 3 is associated with the planned movement direction “right turn”.

The detection signal transmitted from the vehicle detector 10 includes the lane ID. The lane ID included in the detection signal is identification information of the lane in which the vehicle 5 is detected. The vehicle 5 is likely to move in the planned movement direction corresponding to the lane in which the vehicle is traveling. Therefore, the control unit 31 can determine the planned movement direction of the vehicle 5 by referring to the lane information R1 and acquiring the planned movement direction corresponding to the lane ID included in the detection signal.

FIG. 4 is a diagram showing a specific example of the crosswalk information C1. In the example of FIG. 4, at the intersection of a crossroad having four pedestrian crossings, push button type traffic signals 11a to 11h are provided on both sides of each pedestrian crossing. In this case, the pedestrian crossing information C1 is associated with the traffic light ID of each push-button traffic light and the planned moving direction. More specifically, the traffic light ID of the traffic light 11a is associated with the planned travel direction "East", the traffic light ID of the traffic light 11b is associated with the planned travel direction "West", and the traffic light of the traffic light 11c is associated. ID: 3 is associated with the planned movement direction “North”, traffic signal ID: 4 of the traffic signal 11d is associated with the planned travel direction “South”, and traffic light ID of the traffic signal 11e is “5” and the planned travel direction “West”. Are associated with each other, the traffic light ID of the traffic light 11f is associated with the planned travel direction “east”, the traffic light ID of the traffic light 11g is associated with the planned travel direction “south”, and the traffic light of the traffic light 11h is associated with each other. The ID: 8 is associated with the planned movement direction “North”.

The detection signal transmitted from the push button type traffic signal 11 includes a traffic signal ID. The traffic signal ID included in the detection signal is identification information of the traffic signal that the pedestrian 7 has pressed the push button. The pedestrian 7 has a high possibility of crossing a pedestrian crossing installed at the traffic light that pressed the push button. Therefore, the control unit 31 can determine the planned moving direction of the pedestrian 7 by referring to the pedestrian crossing information C1 and acquiring the planned moving direction corresponding to the traffic signal ID included in the detection signal.

The control unit 31 of the edge server 3 determines the planned moving directions of the vehicle 5 and the pedestrian 7 by receiving the detection signals from the vehicle detector 10 and the push-button type traffic signal 11 every predetermined update cycle. In addition, the control unit 31 determines that the vehicle 5 and the pedestrian 7 are in the service area after the present time, based on the planned movement directions of the vehicle 5 and the information acquired from the sensors such as the vehicle 5, the roadside sensor 8, and the pedestrian terminal 70. Estimate the behavior of each passerby at a predetermined point of every predetermined cycle, and when the estimated behaviors of a plurality of passers interfere with each other, determine a recommended behavior for avoiding the interference of the behaviors (behavior adjustment processing). ).

When the control unit 31 receives a request message for dynamic information from the communication terminals 1A and 1B of a predetermined user, the control unit 31 sends the latest dynamic information to the communication terminals 1A and 1B that are the senders of the request message for each predetermined delivery cycle. Distribute (information distribution process). When the recommended action is determined, the control unit 31 distributes the recommended action information indicating the determined recommended action to the communication terminals 1A and 1B in the information distribution process.
The control unit 31 collects traffic information and weather information of each place in the service area from the traffic control center, the private weather service support center, and the like, and based on the collected information, the quasi-dynamic information and the quasi-static information of the map M1. To update.

As shown in FIG. 2, the core server 4 includes a control unit 41 including a CPU, a ROM 42, a RAM 43, a storage unit 44, a communication unit 45, and the like.

The control unit 41 controls the operation of each hardware by reading one or a plurality of programs stored in advance in the ROM 32 into the RAM 43 and executing the programs, and functions as a core server 4 capable of communicating the computer device with the edge server 3. Let
The RAM 43 is composed of a volatile memory element such as SRAM or DRAM, and temporarily stores a program executed by the control unit 41 and data necessary for the execution.

The storage unit 44 is composed of a nonvolatile memory element such as a flash memory or an EEPROM, or a magnetic storage device such as a hard disk.
The communication unit 45 includes a communication device that executes communication processing compatible with 5G, and communicates with the edge server 3 and the base station 2 via the core network. The communication unit 45 transmits the information given from the control unit 41 to the external device via the core network, and gives the information received via the core network to the control unit 41.

As shown in FIG. 2, the storage unit 44 of the core server 4 stores the dynamic information map M2.
The data structure of the map M2 (data structure including dynamic information, semi-dynamic information, semi-static information, and static information) is the same as that of the map M1. The map M2 may be a map of the same service area as the map M1 of the specific edge server 3 or may be a wider area map in which each map M1 held by a plurality of edge servers 3 is integrated.

The storage unit 44 of the core server 4 stores lane information R2 and pedestrian crossing information C2.
The data structures of the lane information R2 and the pedestrian crossing information C2 are the same as those of the lane information R1 and the pedestrian crossing information C1. The lane information R2 and the pedestrian crossing information C2 may be information about lanes and pedestrian crossings included in the same service area as the lane information R1 and the pedestrian crossing information C1 of the specific edge server 3, or each of which is held by a plurality of edge servers 3. The lane information R1 and the pedestrian crossing information C1 may be integrated to be information on lanes and pedestrian crossings included in a wider area.

As in the case of the edge server 3, the control unit 41 of the core server 4 sends the dynamic information update process for updating the dynamic information of the map M2 stored in the storage unit 44, the behavior adjustment process, and the request message. It is possible to perform an information distribution process of distributing the dynamic information and the recommended behavior information in response.
That is, the control unit 41 can independently execute the dynamic information update processing, the behavior adjustment processing, and the information distribution processing based on the map M2 of the own apparatus, separately from the edge server 3.

However, the core server 4 belonging to the slice S4 has a longer delay time in communication with the communication terminals 1A to 1F than the edge server 3 belonging to the slice S3.
Therefore, even if the core server 4 updates the dynamic information of the map M2 independently, the real-time property is inferior to the dynamic information of the map M1 managed by the edge server 3. Similarly, the recommended behavior information generated by the core server 4 is inferior in real time to the recommended behavior information generated by the edge server 3. Therefore, for example, according to the priority defined for each predetermined area, the control unit 31 of the edge server 3 and the control unit 41 of the core server 4 disperse the dynamic information update processing, the behavior adjustment processing, and the information distribution processing in a distributed manner. Treatment is preferred.

The control unit 41 collects traffic information and meteorological information of each place in the service area from a traffic control center, a private meteorological operation support center, and the like, and based on the collected information, quasi-dynamic information and quasi-static information of the map M2. To update.
The control unit 41 may employ the quasi-dynamic information and the quasi-static information of the map M1 received from the edge server 3 as the quasi-dynamic information and the quasi-static information of the map M2 of its own device.

[Internal configuration of in-vehicle device]
FIG. 5 is a block diagram showing an example of the internal configuration of the vehicle-mounted device 50.
As shown in FIG. 5, the vehicle-mounted device 50 of the vehicle 5 includes a control unit (ECU: Electronic Control Unit) 51, a GPS receiver 52, a vehicle speed sensor 53, a gyro sensor 54, a storage unit 55, a display 56, a speaker 57, and an input. A device 58, a vehicle-mounted camera 59, a radar sensor 60, a communication unit 61 and the like are provided.

The communication unit 61 includes the above-described communication terminal 1A, that is, a wireless communication device capable of performing communication processing compatible with 5G, for example.
Therefore, the vehicle 5 can communicate with the edge server 3 as a kind of mobile terminal belonging to the slice S3. The vehicle 5 can also communicate with the core server 4 as a kind of mobile terminal belonging to the slice S4.

The control unit 51 is a computer device that performs a route search for the vehicle 5 and controls other electronic devices 52 to 61. The control unit 51 obtains the vehicle position of the own vehicle from the GPS signal periodically acquired by the GPS receiver 52.
The control unit 51 complements the vehicle position and direction based on the input signals of the vehicle speed sensor 53 and the gyro sensor 54, and grasps the accurate current position and direction of the vehicle 5.

The GPS receiver 52, the vehicle speed sensor 53, and the gyro sensor 54 are sensors that measure the current position, speed, and direction of the vehicle 5.
The storage unit 55 includes a map database. The map database provides the control unit 51 with road map data. The road map data includes link data and node data, and is stored in a recording medium such as a DVD, CD-ROM, memory card, or HDD. The storage unit 55 reads out necessary road map data from the recording medium and provides it to the control unit 51.

The display 56 and the speaker 57 are output devices for notifying a user who is a passenger of the vehicle 5 of various information generated by the control unit 51.
Specifically, the display 56 displays an input screen for route search, a map image around the vehicle, route information to the destination, and the like. The speaker 57 outputs an announcement or the like for guiding the vehicle 5 to the destination. These output devices can also notify the passenger of the provided information received by the communication unit 61.

The input device 58 is a device for a passenger of the vehicle 5 to perform various input operations. The input device 58 is composed of a combination of operation switches provided on the handle, a joystick, a touch panel provided on the display 56, and the like.
A voice recognition device that receives an input by voice recognition of a passenger may be used as the input device 58. The input signal generated by the input device 58 is transmitted to the control unit 51.

The vehicle-mounted camera 59 includes an image sensor that captures an image in front of the vehicle 5. The vehicle-mounted camera 59 may be either a single eye or a compound eye. The radar sensor 60 is a sensor that detects an object existing in front of or around the vehicle 5 by a millimeter wave radar or a LiDAR method.
The control unit 51 executes driving assistance control that outputs a caution to the occupant who is driving on the display 56 or performs a compulsory braking intervention, based on the measurement data from the vehicle-mounted camera 59 and the radar sensor 60. be able to.

The control unit 51 is configured by an arithmetic processing device such as a microcomputer that executes various control programs stored in the storage unit 55.
The control unit 51 executes the control program to display a map image on the display 56, and a function of calculating a route from a starting point to a destination (including a position of a relay point, if any). Various navigation functions such as a function of guiding the vehicle 5 to a destination according to the calculated route can be executed.

The control unit 51 performs an object recognition process of recognizing an object in front of or in the vicinity of the own vehicle based on measurement data of at least one of the vehicle-mounted camera 59 and the radar sensor 60, and a measurement for calculating a distance to the recognized object. Distance processing is possible.
The control unit 51 can calculate the position information of the object recognized by the object recognition process from the distance calculated by the distance measurement process and the sensor position of the own vehicle.

The control unit 51 can execute the following processes in communication with the edge server 3 (which may be the core server 4).
1) Request message transmission processing 2) Information reception processing 3) Change point information calculation processing 4) Change point information transmission processing 5) Sensor information transmission processing 6) Recommended action information output processing

The request message transmission process is a process of transmitting to the edge server 3 a control packet requesting distribution of the dynamic information of the map M1 that the edge server 3 sequentially updates. The control packet includes the vehicle ID of the own vehicle.
When the edge server 3 receives the request message including the predetermined vehicle ID, the edge server 3 distributes the dynamic information to the communication terminal 1A of the vehicle 5 having the vehicle ID of the transmission source at a predetermined distribution cycle.

The information receiving process is a process of receiving the dynamic information distributed by the edge server 3 to the own device.
The process of calculating change point information in the vehicle 5 is a process of calculating the amount of change between the received dynamic information and the sensor information of the own vehicle at the time of reception, based on the comparison result. As the change point information calculated by the vehicle 5, for example, the following information examples a1 and a2 can be considered.

Information Example a1: Change Point Information Regarding Recognized Object Although the control unit 51 does not include the object X (vehicle, pedestrian, obstacle, etc.) in the received dynamic information, the control unit 51 detects the object X by its own object recognition processing. In that case, the image data and the position information of the detected object X are used as the change point information.
When the position information of the object X included in the received dynamic information and the position information of the object X obtained by the object recognition processing of the controller 51 deviate from each other by a predetermined threshold value or more, the control unit 51 detects the detected object X. The difference value between the image data and the position information of the two is set as the change point information.

Information Example a2: Change Point Information Regarding Own Vehicle The control unit 51 deviates the position information of the own vehicle included in the received dynamic information from the vehicle position of the own vehicle calculated by the GPS signal by a predetermined threshold value or more. If so, the difference value between the two is used as the change point information.
When the azimuth of the own vehicle included in the received dynamic information and the azimuth of the own vehicle calculated from the measurement data of the gyro sensor 54 deviate from each other by a predetermined threshold value or more, the control unit 51 makes a difference between the two. The value is used as change point information.

When calculating the change point information as described above, the control unit 51 generates a communication packet addressed to the edge server 3 including the calculated change point information. The control unit 51 includes the vehicle ID of the own vehicle in the communication packet.
The changing point information transmitting process is a process of transmitting the communication packet including the changing point information in the data to the edge server 3. The transmission processing of the change point information is performed within the distribution period of the dynamic information by the edge server 3.

The sensor information transmission process is a process of transmitting the packet including the sensor information of the vehicle 5 in the data to the edge server 3. The sensor information of the vehicle 5 includes high-definition image data (may be a moving image), vehicle CAN (Controller Area Network) information, and the like. The image data of the vehicle 5 is image data of the surroundings of the vehicle 5 taken by the vehicle-mounted camera 59. In the case of the vehicle 5 having the in-vehicle camera, the image data of the driver may be included. The process of transmitting the sensor information is performed within the distribution period of the dynamic information by the edge server 3.

The output process of the recommended action information is a process of outputting the recommended action information received from the edge server 3. The output of the recommended action information is performed, for example, by displaying the recommended action information on the display 56.

Based on the dynamic information received from the edge server 3 or the like, the control unit 51 outputs a warning to the driver who is driving on the display 56 and executes driving support control such as forcible braking intervention. You can also

[Internal configuration of pedestrian terminal]
FIG. 6 is a block diagram showing an example of the internal configuration of the pedestrian terminal 70.
The pedestrian terminal 70 in FIG. 6 includes the above-described communication terminal 1B, that is, a wireless communication device capable of performing communication processing compatible with 5G, for example.
Therefore, the pedestrian terminal 70 can communicate with the edge server 3 as a kind of mobile terminal belonging to the slice S3. The pedestrian terminal 70 can also communicate with the core server 4 as a type of mobile terminal belonging to the slice S4.

As shown in FIG. 6, the pedestrian terminal 70 includes a control unit 71, a storage unit 72, a display unit 73, an operation unit 74, a communication unit 75, a GPS receiver 76, an acceleration sensor 77, and a gyro sensor 78.
The communication unit 75 includes a communication interface that wirelessly communicates with the base station 2 of the carrier that provides the 5G service. The communication unit 75 converts the RF signal from the base station 2 into a digital signal and outputs the digital signal to the control unit 71, converts the digital signal input from the control unit 71 into an RF signal, and transmits the RF signal to the base station 2.

The control unit 71 includes a CPU, a ROM, a RAM and the like. The control unit 71 reads out and executes the program stored in the storage unit 72 to control the overall operation of the pedestrian terminal 70.
The storage unit 72 includes a hard disk, a non-volatile memory, or the like, and stores various computer programs and data. The storage unit 72 stores a mobile ID that is identification information of the pedestrian terminal 70. The mobile ID is, for example, a unique user ID or MAC address of the carrier contractor.

The storage unit 72 stores various application software that the user arbitrarily installed.
The application software includes, for example, application software for enjoying the information providing service for receiving the dynamic information of the map M1 and the like through 5G communication with the edge server 3 (or the core server 4).

The control unit 71 is a computer device that searches for a route of the pedestrian 7 and controls the other electronic devices 72 to 78. The control unit 71 obtains the position of the pedestrian (own device) from the GPS signal periodically acquired by the GPS receiver 76.
The control unit 71 complements the pedestrian position and azimuth based on the input signals of the acceleration sensor 77 and the gyro sensor 78, and grasps the accurate current position and azimuth of the pedestrian 7.

The GPS receiver 76, the acceleration sensor 77, and the gyro sensor 78 are sensors that measure the current position, acceleration, and direction of the pedestrian 7.

The operation unit 74 includes various operation buttons and a touch panel function of the display unit 73. The operation unit 74 outputs an operation signal according to a user operation to the control unit 71.
The display unit 73 includes, for example, a liquid crystal display, and presents various kinds of information to the user. For example, the display unit 73 can display the image data of the dynamic information maps M1 and M2 transmitted from the servers 3 and 4 on the screen.

The control unit 71 can execute the following processes in communication with the edge server 3 (which may be the core server 4).
1) Request message transmission process 2) Sensor information transmission process 3) Information reception process 4) Recommended action information output process

The request message transmission process is a process of transmitting to the edge server 3 a control packet requesting distribution of the dynamic information of the map M1 that the edge server 3 sequentially updates. The control packet includes the mobile ID of the pedestrian terminal 70.
When the edge server 3 receives the request message including the predetermined mobile ID, the edge server 3 sends the dynamic information and the recommended behavior information to the communication terminal 1B of the pedestrian 7 having the mobile ID of the transmission source if the dynamic information and the recommended behavior are determined. It is delivered at a predetermined delivery cycle.

The process of transmitting the sensor information is a process of transmitting the sensor information of the pedestrian terminal 70 such as the position and direction information of the own device to the edge server 3. The sensor information includes information on the current position, acceleration, and orientation of the pedestrian 7, which is detected by the GPS receiver 76, the acceleration sensor 77, and the gyro sensor 78. The sensor information may include identification information indicating whether or not application software that easily causes a so-called “walking smartphone” such as a map application, a mail application, and a game application is being displayed.
The information receiving process is a process of receiving the dynamic information and the recommended behavior information distributed by the edge server 3 to the own device.

The output process of the recommended action information is a process of outputting the recommended action information received from the edge server 3. The output of the recommended action information is performed, for example, by displaying the recommended action information on the display unit 73.

[Internal configuration of roadside sensor]
FIG. 7 is a block diagram showing an example of the internal configuration of the roadside sensor 8.
As shown in FIG. 7, the roadside sensor 8 includes a control unit 81, a storage unit 82, a roadside camera 83, a radar sensor 84, and a communication unit 85.

The communication unit 85 includes the above-described communication terminal 1C, that is, a wireless communication device capable of communication processing compatible with, for example, 5G.
Therefore, the roadside sensor 8 can communicate with the edge server 3 as a kind of fixed terminal belonging to the slice S3. The roadside sensor 8 can also communicate with the core server 4 as a kind of fixed terminal belonging to the slice S4.

The control unit 81 includes a CPU, a ROM, a RAM and the like. The control unit 81 reads out and executes the program stored in the storage unit 82, and controls the overall operation of the roadside sensor 8.
The storage unit 82 is configured by a hard disk, a non-volatile memory, or the like, and stores various computer programs and data. The storage unit 82 stores a sensor ID that is identification information of the roadside sensor 8. The sensor ID is, for example, a user ID unique to the owner of the roadside sensor 8 or a MAC address.

The roadside camera 83 includes an image sensor that captures an image of a predetermined shooting area. The roadside camera 83 may be either a single eye or a compound eye. The radar sensor 60 is a sensor that detects an object existing in front of or around the vehicle 5 by a millimeter wave radar or a LiDAR method.
When the roadside sensor 8 is a security camera, the control unit 81 sends the captured image data and the like to the computer device of the security manager. When the roadside sensor 8 is an image type vehicle detector, the control unit 81 transmits the captured video data and the like to the traffic control center.

The control unit 81 performs an object recognition process of recognizing an object in the shooting area and a distance measurement process of calculating the distance to the recognized object based on the measurement data of at least one of the roadside camera 83 and the radar sensor 84. It is possible.
The control unit 51 can calculate the position information of the object recognized by the object recognition process from the distance calculated by the distance measurement process and the sensor position of the own vehicle.

The control unit 81 can execute the following processes in communication with the edge server 3 (or the core server 4).
1) Change point information calculation processing 2) Change point information transmission processing 3) Sensor information transmission processing

The calculation processing of the change point information in the roadside sensor 8 is based on the comparison result of the previous sensor information and the current sensor information for each predetermined measurement cycle (for example, the distribution cycle of the dynamic information by the edge server 3). This is a process for calculating the amount of change between the sensor information items. As the change point information calculated by the roadside sensor 8, for example, the following information example b1 can be considered.

Information Example b1: Change Point Information Regarding Recognized Object Although the control unit 81 does not include the object Y (vehicle, pedestrian, obstacle, etc.) in the previous object recognition process, the control unit 81 detects the object Y by the current object recognition process. In this case, the image data of the detected object Y and the position information are used as the change point information.
When the positional information of the object Y obtained by the previous object recognition process and the positional information of the object X obtained by the current object recognition process are deviated by a predetermined threshold value or more, the control unit 81 detects the detected object Y. The position information and the difference value between the two are used as change point information.

When the change point information is calculated as described above, the control unit 81 generates a communication packet addressed to the edge server 3 including the calculated change point information. The control unit 81 includes the sensor ID of its own device in the communication packet.
The changing point information transmitting process is a process of transmitting the communication packet including the changing point information in the data to the edge server 3. The transmission processing of the change point information is performed within the distribution period of the dynamic information by the edge server 3.

The sensor information transmission process is a process of transmitting the above communication packet including the sensor information of the roadside sensor 8 to the edge server 3. The sensor information of the roadside sensor 8 includes high-definition image data (may be a moving image). The image data is image data of a predetermined photographing area photographed by the roadside camera 83. The sensor information of the roadside sensor 8 may include position information detected by the radar sensor 84. The process of transmitting the sensor information is performed within the distribution period of the dynamic information by the edge server 3.

[Overall configuration of information provision system]
FIG. 8 is an overall configuration diagram of the information providing system according to the embodiment of the present invention.
As shown in FIG. 8, the information providing system according to the present embodiment includes a large number of vehicles 5, pedestrian terminals 70, and roadside sensors 8 scattered in the service area (real word) of the edge server 3, which is a relatively wide area. And the edge server 3 capable of low-delay wireless communication by 5G communication or the like via the base station 2.

The edge server 3 collects the above-described change point information from the vehicle 5 and the roadside sensor 8 in a predetermined cycle (step S31), integrates the collected change point information by map matching, and manages the dynamic information under management. The dynamic information of the map M1 is updated (step S32).

The edge server 3 can receive the detection signals from the vehicle detector 10 and the push button type traffic signal 11 (step S33). In addition, the edge server 3 can collect the sensor information obtained by the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8 at predetermined intervals.
The edge server 3 determines the planned moving direction of the passerby (the vehicle 5 and the pedestrian 7) based on the detection signals acquired from the vehicle detector 10 and the push-button type traffic signal 11 every predetermined update cycle. Further, the edge server 3 estimates the behavior of a passerby that may occur at a predetermined point in the service area after the present time point based on the acquired sensor information in each of the update cycles. The edge server 3 determines whether or not the action interferes between a plurality of passers based on the planned moving direction of the passerby and the estimated action, and when the interference occurs, recommends the passer's recommended action. It is determined (behavior adjustment processing: step S34).
If the edge server 3 receives a request from the vehicle 5 or the pedestrian terminal 70, the edge server 3 transmits the latest dynamic information and recommended behavior information to the requesting communication node (step S35). Accordingly, for example, the vehicle 5 and the pedestrian terminal 70 that have received the dynamic information and the recommended behavior information can utilize the dynamic information and the recommended behavior information for the driving assistance of the driver and the passage assistance of the pedestrian.

When the vehicle 5 that has received the dynamic information detects the change point information with the sensor information of the own vehicle based on the dynamic information, the vehicle 5 transmits the detected change point information to the edge server 3 (step S36).
As described above, in the information providing system of the present embodiment, collection of change point information (step S31)→update of dynamic information (step S32)→determination of a planned moving direction (step S33)→determination of recommended behavior of a passerby. (Step S34)→Delivery of dynamic information and recommended behavior information (Step S35)→Detection of change point information by vehicle (Step S36)→Collection of change point information (Step S31) in this order, information processing in each communication node Circulates.

Although the information providing system including only one edge server 3 is illustrated in FIG. 8, a plurality of edge servers 3 may be included, or instead of the edge server 3 or in addition to the edge server 3, One or a plurality of core servers 4 may be included.
Further, the dynamic information map M1 managed by the edge server 3 may be a map in which at least the dynamic information of the object is superimposed on map information such as a digital map. This also applies to the dynamic information map M2 of the core server.

[Dynamic information update processing, behavior adjustment processing, and information distribution processing]
FIG. 9 is a sequence diagram showing an example of dynamic information update processing, behavior adjustment processing, and information distribution processing executed by the cooperation of the pedestrian terminal 70, the vehicle 5, the roadside sensor 8, and the edge server 3. is there.
In the following description, the execution subjects are the pedestrian terminal 70, the vehicle 5, the roadside sensor 8 and the edge server 3, but the actual execution subjects are the control units 71, 51, 81 and 31 thereof. U1, U2... In FIG. 9 are dynamic information distribution cycles.

As shown in FIG. 9, when the edge server 3 receives the request message for the dynamic information from the pedestrian terminal 70 and the vehicle 5 (step S1), the latest dynamic information at the time of reception is sent to the pedestrian terminal of the transmission source. 70 and the vehicle 5 (step S2).
When there is a request message from either the pedestrian terminal 70 or the vehicle 5 in step S1, the dynamic information is delivered only to one communication terminal which is the transmission source of the request message in step S2.

When the vehicle 5 that has received the dynamic information in step S2 detects the change point information from the comparison result of the dynamic information and its own sensor information within the distribution cycle U1 (step S3), the detected change point information is edged. It is transmitted to the server 3 (step S5).
When the roadside sensor 8 detects the change point information of its own sensor information within the distribution cycle U1 (step S4), it transmits the detected change point information to the edge server 3 (step S5).

Each of the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8 transmits the acquired sensor information to the edge server 3 within the distribution cycle U1 (step S6).

When detecting the vehicle 5 or the pedestrian 7 within the distribution cycle U1 (step S7), each of the vehicle detector 10 and the push-button type traffic signal 11 transmits a detection signal to the edge server 3 (step S8).

When the edge server 3 receives the change point information from the vehicle 5 and the roadside sensor 8 within the distribution cycle U1, the edge server 3 updates the dynamic information that reflects the change point information (step S9).
The edge server 3 executes the action adjustment process within the distribution cycle U1 (step S10). In the action adjustment process, the edge server 3 determines the planned moving direction of the passerby based on the detection signals transmitted from the vehicle detector 10 and the push button type traffic signal 11. In the action adjustment process, the edge server 3 estimates the action of the passerby based on the sensor information transmitted from each of the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8. In the action adjustment process, the edge server 3 determines whether or not the action interferes between a plurality of passers-by based on the planned moving direction or the estimated action. Determine recommended actions.
The edge server 3 distributes the updated dynamic information and the recommended behavior information when the recommended behavior is determined to the pedestrian terminal 70 and the vehicle 5 (step S11).

When only the vehicle 5 detects the change point information within the distribution cycle U1, only the change point information detected by the vehicle 5 in step S3 is transmitted to the edge server 3 (step S5), and only the change point information is reflected. The updated dynamic information is updated (step S9).
If only the roadside sensor 8 detects the change point information within the distribution cycle U1, only the change point information detected by the roadside sensor 8 in step S4 is transmitted to the edge server 3 (step S5), and only the change point information is transmitted. The dynamic information that reflects is updated (step S9).
If both the vehicle 5 and the roadside sensor 8 do not detect the change point information within the distribution cycle U1, the processes of steps S3 to S5 and S9 are not executed, and the dynamic information of the previous transmission (step S2). The same dynamic information as is distributed to the pedestrian terminal 70 and the vehicle 5 (step S11).

The vehicle 5, which has received the dynamic information in step S11, detects the change point information from the comparison result between the dynamic information and the sensor information of its own within the distribution cycle U2 (step S12), and detects the detected change point information as an edge. It transmits to the server 3 (step S14).
When the roadside sensor 8 detects the change point information of its own sensor information within the distribution cycle U2 (step S13), it transmits the detected change point information to the edge server 3 (step S14).

Each of the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8 transmits the acquired sensor information to the edge server 3 within the distribution cycle U2 (step S15).

When detecting the vehicle 5 or the pedestrian 7 within the distribution cycle U2 (step S16), each of the vehicle detector 10 and the push-button type traffic light 11 transmits a detection signal to the edge server 3 (step S17).

When the edge server 3 receives the change point information from the vehicle 5 and the roadside sensor 8 within the distribution cycle U2, the edge server 3 updates the dynamic point information reflecting the change point information (step S18).

The edge server 3 determines the planned moving direction of the passerby based on the detection signals transmitted from the vehicle detector 10 and the push button type traffic signal 11 within the distribution cycle U2. The edge server 3 estimates the behavior of a passerby based on the sensor information transmitted from each of the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8. The edge server 3 determines whether or not the actions interfere with each other based on the planned movement direction or the estimated action, and when it is determined that the actions interfere, a recommended action of the passerby is determined. (Step S19).
The edge server 3 distributes the updated dynamic information and the recommended behavior information when the recommended behavior is determined to the pedestrian terminal 70 and the vehicle 5 (step S20).

If only the vehicle 5 detects the change point information within the distribution cycle U2, only the change point information detected by the vehicle 5 in step S12 is transmitted to the edge server 3 (step S14), and only the change point information is reflected. The updated dynamic information is updated (step S18).
If only the roadside sensor 8 detects the change point information within the distribution cycle U2, only the change point information detected by the roadside sensor 8 in step S13 is transmitted to the edge server 3 (step S14), and only the change point information is acquired. The dynamic information that reflects is updated (step S18).
If both the vehicle 5 and the roadside sensor 8 do not detect the change point information within the distribution cycle U2, the processes of steps S12 to S14 and S18 are not executed, and the dynamic information of the previous transmission (step S11). The same dynamic information as is distributed to the pedestrian terminal 70 and the vehicle 5 (step S20).

Thereafter, the same sequence as described above is performed until a dynamic information distribution stop request message is received from both the pedestrian terminal 70 and the vehicle 5 or communication between the pedestrian terminal 70 and the vehicle 5 is cut off. Repeated.

[Adjustment of passerby behavior]
Hereinafter, the adjustment of the behavior of the passerby will be described in more detail. FIG. 10 is a functional block diagram showing an example of functions of the edge server 3 according to the present embodiment. As shown in FIG. 10, the edge server 3 includes a receiving unit 310, a first determining unit 320, an estimating unit 330, a determining unit 340, a second determining unit 350, a generating unit 360, and a transmitting unit 370. It has each function of.

The receiving unit 310 can receive detection signals from each of the vehicle detector 10 and the push button type traffic signal 11. The receiving unit 310 can also receive the sensor information transmitted from each of the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8.

The first determination unit 320 determines the planned moving direction of the passerby in the target area based on the detection signals transmitted from the vehicle detector 10 and the push button type traffic signal 11. The lane information R1 and the pedestrian crossing information C1 described above are used to determine the planned movement direction.

The estimation unit 330 estimates future actions of passersby, that is, the vehicle 5 (driver) and the pedestrian 7 in the target area based on the sensor information received by the reception unit 310. For example, the estimation unit 330 may estimate, in the future, in which direction and at what speed the passerby moves from the movement vector of the passerby. The estimation unit 330 may estimate what kind of behavior the passerby will take in the future (stop when the traffic light is red, drive when the traffic light is green, etc.) based on the lighting state of the traffic light. In addition, the estimation unit 330 estimates the direction in which the vehicle 5 will travel from the lighting state of the turn indicator of the vehicle 5 (when the right turn indicator is lit, turn right, etc.). Good.

The determination unit 340 determines whether or not the actions of a plurality of passers interfere with each other based on the planned moving direction determined by the first determination unit 320 and the action estimated by the estimation unit 330. In a specific example, the determination unit 340 determines whether the determined planned movement directions of a plurality of passersby or the estimated movement directions (hereinafter, referred to as “estimated movement directions”) intersect with each other. Thus, it is possible to determine whether the actions interfere with each other. That is, when the planned movement directions or estimated movement directions of a plurality of passers cross each other, the determination unit 340 determines that the behaviors of these passers interfere with each other, and the planned movement directions or the estimated movement directions of the plurality of passers. If the two do not intersect with each other, it can be determined that the actions of these passers-by do not interfere with each other.

The determination unit 340 may group passers-by in the target area and determine whether or not the actions interfere with each other for each group of passers-by.

FIG. 11A is a diagram for explaining an example of determination of action interference by the edge server 3 according to the present embodiment.

In the example illustrated in FIG. 11A, a vehicle A, a vehicle B that is an oncoming vehicle of the vehicle A, vehicles C and D that are preceding vehicles of the vehicle B, and a pedestrian a are present at the intersection of the crossroads. For the vehicle A, for example, the planned moving direction “turn right” is determined by a detection signal from the vehicle detector 10. For the vehicle B, it is estimated that the vehicle B goes straight through the intersection in the opposite direction to the vehicle A based on the sensor information, for example. It is estimated that the vehicles C and D have already passed the intersection and are kept in a stopped state. A space for one vehicle exists behind the vehicle D. For the pedestrian a, for example, the planned moving direction “east” is determined by the detection signal of the push button type traffic signal 11. That is, it is determined that the pedestrian a is scheduled to cross the pedestrian crossing on the right side of the vehicle A in the same direction as the traveling direction of the vehicle A.

In the example of FIG. 11A, the planned moving direction of the vehicle A and the estimated moving direction of the vehicle B intersect with each other. Therefore, the determination unit 340 determines that the actions interfere between the vehicle A and the vehicle B. Further, in the example of FIG. 11A, the planned movement directions of the vehicle A and the pedestrian a intersect each other. Therefore, the determination unit 340 determines that the action interferes between the vehicle A and the pedestrian a.

In the example of FIG. 11A, the determination unit 340 may group passers-by at the intersection of the crossroads that is the target area. Specifically, the determination unit 340 can create a group 1 of vehicles A and B and a group 2 of vehicles A and pedestrians a. The determination unit 340 can determine that the action interferes between the vehicle A and the vehicle B in the group 1, and can determine that the action interferes between the vehicle A and the pedestrian a in the group 2.

Referring back to FIG. When the determination unit 340 determines that the actions of a plurality of passers interfere with each other, the second determination unit 350 determines the recommended action for the passers to avoid the action interference.

FIG. 11B is a diagram for explaining a specific example of determination of recommended action by the edge server 3 according to the present embodiment.

FIG. 11B shows an example of determining the recommended action in the example of FIG. 11A. In this example, since the second determination unit 350 has a space for one vehicle after the vehicle C, the second determination unit 350 determines “straight ahead” as the recommended action for the vehicle B. The second determination unit 350 determines “waiting for right turn” as the recommended action for the vehicle A in order to avoid the action interference between the vehicle A and the vehicle B. In addition, the second determining unit 350 determines “waiting for right turn” as the recommended action for the vehicle A in order to avoid the action interference between the vehicle A and the pedestrian a. The second determination unit 350 may determine "crossing a pedestrian crossing" as the recommended action of the pedestrian a.

Referring back to FIG. The generation unit 360 generates recommended action information indicating the decided recommended action. The transmission unit 370 transmits the recommended behavior information generated by the generation unit 360 to the vehicle 5. The recommended behavior information of the vehicle 5 is output (displayed) on the display 56. The recommended behavior information of the pedestrian 7 is output (displayed) on the display unit 73. In the example of FIG. 11B, the recommended action information “Please wait” is displayed in the vehicle A, and the recommended action information “Please go straight” is displayed in the vehicle B.

The reception unit 310 and the transmission unit 370 can be realized by the communication unit 35, for example. The first determination unit 320, the estimation unit 330, the determination unit 340, the second determination unit 350, and the generation unit 360 can be realized by the control unit 31, for example.

FIG. 12 is a flowchart showing an example of the procedure of the action adjustment processing by the edge server according to the present embodiment. The edge server 3 receives the detection signals from the detection device, that is, the vehicle detector 10 and the push button type traffic light 11 (step S101). The control unit 31 of the edge server 3 determines the planned moving direction of the detected passerby, that is, the vehicle 5 and the pedestrian 7, based on the received detection signal (step S102).

The edge server 3 receives the sensor information obtained by the vehicle 5, the pedestrian terminal 70, and the roadside sensor 8 (step S103).

The control unit 31 estimates the behavior of the passerby in the target area based on the received sensor information (step S104). However, in this process, it is possible to omit the estimation of the behavior of the passerby whose planned moving direction is determined in step S103. As a result, the processing load on the edge server 3 can be suppressed.

The control unit 31 performs grouping of passers-by (step S105), and determines for each group whether or not actions interfere with passers-by (step S106).

The control unit 31 determines whether or not there is at least one group for which it is determined that the actions interfere (step S107). When there is no group for which it is determined that the actions interfere (NO in step S107), the control unit 31 ends the process.

When there is a group determined to interfere with the action (YES in step S107), the control unit 31 selects one group determined to interfere with the action (step S108).

The control unit 31 determines the recommended behavior of each passerby included in the group (step S109). For example, the control unit 31 can determine a recommended action for avoiding the action interference by making some actions of the passers whose actions interfere with each other stand by and prompting the actions of other passers. The control unit 31 generates recommended action information indicating the decided recommended action (step S110).

The control unit 31 determines whether or not all the groups determined to interfere with the action have been selected (step S111). When an unselected group remains in the group determined to interfere with the action (NO in step S111), the control unit 31 returns the process to step S108. The control unit 31 selects one of the unselected groups (step S108) and executes the processes of steps S109 to S111 again.

When all the groups that are determined to have behavior interference (YES in step S111), the control unit 31 sets the generated recommended behavior information to the communication unit 35 with the vehicle 5 and the pedestrian terminal 70 as the destinations. It is transmitted (step S112). This is the end of the action adjustment process. The above process is executed at every dynamic information update cycle.

The core server 4 may also have the same functions as the edge server 3 and execute the above-mentioned action adjustment processing.

Please refer to FIG. The communication unit 61 of the vehicle 5 receives the recommended behavior information transmitted from the edge server 3 or the core server 4. The control unit 51 causes the display 56 to display (output) the recommended behavior information.

Please refer to FIG. The communication unit 75 of the pedestrian terminal 70 receives the recommended behavior information transmitted from the edge server 3 or the core server 4. The control unit 71 causes the display unit 73 to display (output) the recommended action information.

[Modification]
In the above embodiment, the edge server 3 determines the recommended behavior of the passerby and transmits the recommended behavior information indicating the determined recommended behavior to the passerby, but the present invention is not limited to this. The edge server 3 can also generate notification information other than the recommended behavior information and send the notification information to the passerby based on the planned moving direction of the passerby. For example, the edge server 3 can transmit notification information that calls attention to a passerby to a passerby. FIG. 13 is a diagram for explaining a specific example of the notification information generated by the edge server 3 according to this modification. In the example shown in FIG. 13, the notification information is displayed on the pedestrian terminal 70 used by the pedestrian a in the traffic situation described in FIG. 11A. On the pedestrian terminal 70, a message “Let's cross the left car carefully” is displayed, and the pedestrian a is alerted to the traffic.

[effect]
As described above, the information providing system according to the present embodiment includes the detection device (vehicle detector 10, push button type traffic light 11), the generation unit 360, and the output unit (display 56, display unit 73). The detection device is installed on the roadside. The detection device detects a passerby who is scheduled to move in a specific scheduled movement direction in the target area. The generation unit 360 generates the notification information to the passers-by based on the planned moving direction when the detection device detects the passers-by. The output unit outputs the notification information generated by the generation unit 360. Thereby, when the passerby is detected by the detection device, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

The passerby may be a vehicle. Further, the detection device may be the vehicle detector 10. The vehicle detector 10 detects the vehicle 5 in the lane for the vehicle to travel in the planned movement direction. For example, a vehicle in a lane for traveling in a specific planned traveling direction such as a right-turn dedicated lane, a left-turn dedicated lane, or a straight-ahead dedicated lane is likely to move in the planned traveling direction. Therefore, when the vehicle detector 10 detects the vehicle 5, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

Pedestrians may be pedestrians. Further, the detection device may be a push button type traffic signal 11. The push-button traffic light 11 is installed on a pedestrian crossing extending in the planned movement direction. The pedestrian 7 who presses the button of the push-button type traffic signal 11 is likely to cross the pedestrian crossing where the traffic signal 11 is installed. Therefore, when the pedestrian 7 is detected by the push button type traffic light 11, it is possible to provide the passerby with the notification information based on the highly reliable planned moving direction.

The information providing system may include a determination unit 340 and a determination unit (second determination unit 350). The determination unit 340 determines whether or not the actions of a plurality of passers interfere with each other based on the planned moving direction when a passerby is detected by the detection device. When the determination unit determines that the actions of the passers-by interfere with each other, the determination unit determines the recommended actions for the passers-by to avoid the interference of the actions. The notification information may be information indicating the recommended action determined by the determination unit. It is possible to obtain a highly reliable determination result by determining whether or not the actions of a plurality of passers-by interfere with each other based on the highly reliable planned movement direction. Therefore, the notification information indicating the appropriate recommended behavior can be provided to the passerby.

[Supplemental note]
The embodiments (including modified examples) disclosed this time are illustrative in all points and not restrictive. The scope of rights of the present invention is not limited to the above-described embodiments, but includes all modifications within the scope equivalent to the configurations described in the claims.

1A communication terminal 1B communication terminal 1C communication terminal 1D communication terminal 1E communication terminal 1F communication terminal 2 base station 3 edge server 4 core server 5 vehicle 7 pedestrian 8 roadside sensor 9 traffic signal controller 10 vehicle detector 11, 11a to 11h push Button type traffic light 31 Control unit 32 ROM
33 RAM
34 storage unit 35 communication unit 41 control unit 42 ROM
43 RAM
44 storage unit 45 communication unit 50 vehicle-mounted device 51 control unit 52 GPS receiver 53 vehicle speed sensor 54 gyro sensor 55 storage unit 56 display (output unit)
57 speaker 58 input device 59 vehicle-mounted camera 60 radar sensor 61 communication unit 70 pedestrian terminal 71 control unit 72 storage unit 73 display unit (output unit)
74 operation unit 75 communication unit 76 GPS receiver 77 acceleration sensor 78 gyro sensor 81 control unit 82 storage unit 83 roadside camera 84 radar sensor 85 communication unit 310 reception unit 320 first determination unit 330 estimation unit 340 determination unit 350 second determination unit 360 generation unit 370 transmission unit

Claims (6)

A detection device installed on the roadside that detects a passerby who is scheduled to move in a specific planned movement direction in the target area,
When the detection device detects the passerby, based on the planned movement direction, a generation unit that generates notification information to the passerby,
An output unit that outputs the notification information generated by the generation unit,
With
Information provision system. The passerby is a vehicle,
The detection device is a vehicle detector that detects a vehicle in a lane for the vehicle to travel in the planned movement direction,
The information providing system according to claim 1. The passerby is a pedestrian,
The detection device is a push button type traffic light installed on the pedestrian crossing extending in the planned movement direction,
The information providing system according to claim 1. When the passerby is detected by the detection device, based on the planned moving direction, a determination unit that determines whether or not the actions of a plurality of passersby interfere with each other,
When it is determined that the actions interfere with each other by the determination unit, for the passerby, a determination unit that determines a recommended action for avoiding the interference of the actions,
Further equipped with,
The notification information is information indicating the recommended action determined by the determination unit,
The information providing system according to any one of claims 1 to 3. A receiving unit that detects a passer-by who intends to move in a specific planned moving direction in the target area, and that receives a detection signal output by the detection device when a detection device installed on the roadside detects the passer-by. When,
When the detection signal is received by the receiving unit, based on the planned moving direction, a generation unit that generates notification information to passersby,
A transmission unit that transmits the notification information generated by the generation unit,
With
server. On the computer,
A step of receiving a detection signal output by the detection device when a detection device installed on the roadside detects the passer-by, detecting a passer-by scheduled to move in a specific planned movement direction in the target area; ,
Generating notification information to passersby based on the planned moving direction when the detection signal is received,
Transmitting the generated notification information,
To execute
Computer program.

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