Map information management controlling device and map information management controlling method

Abstract

To provide dynamically updated map information with appropriate contents.SOLUTION: A map information management controlling device comprises: an information acquisition unit 21 that acquires emergency notification positional information at a time when an emergency notification is issued from a terminal device which has issued the emergency notification; an integration range setting unit 22 that sets an integration range for integrating a range for avoiding or suppressing passage based on the emergency notification positional information acquired by the information acquisition unit 21; and a map integration unit 23 that integrates a range of avoidance or suppression of the passage set by the integration range setting unit 22 into map information.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a map information management control device and a map information management control method.

Background Art

[0002] Due to the occurrence of an accident or a fire, etc., the road may become temporarily difficult to pass or impassable. Such information can be obtained, for example, by using a notification system such as DSRC (Dedicated Short-Range Communications) (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Such a notification system has a time lag until it becomes possible to notify the occurrence of an accident or a fire after the occurrence of a vehicle accident or a fire. For this reason, even if traffic control is not being carried out, the passage may be difficult or traffic jams may occur. In addition, the occurrence state of a vehicle accident or a fire may be reflected and updated as quasi-dynamic information of a dynamic map. However, since it is after the occurrence of a vehicle accident or a fire, the same problem may occur. In such a state, there is a risk that other vehicles may approach the location of the vehicle accident or the fire and worsen the traffic jam, or the arrival of emergency vehicles may be hindered.

[0005] An object of the present disclosure is to provide a map information management control device and a map information management control method capable of providing map information dynamically updated with appropriate content.

Means for Solving the Problems

[0006] The map information management and control device according to the present disclosure includes an information acquisition unit that acquires emergency notification position information at the time of an emergency notification in a terminal device that has issued an emergency notification, and an integration range setting unit that sets, as an integration range to be integrated, a range for avoiding or suppressing passage based on the emergency notification position information acquired by the information acquisition unit, and a map integration unit that integrates, into map information, the range for avoiding or suppressing passage set by the integration range setting unit.

[0007] The map information management and control method according to the present disclosure includes an information acquisition step of acquiring emergency notification position information at the time of an emergency notification in a terminal device that has issued an emergency notification, a map integration step of integrating the emergency notification position information acquired in the information acquisition step into map information as a range for avoiding or suppressing passage, and a provision control step of providing the map information integrated in the map integration step to a user, which are executed by a map information management and control device.

Advantages of the Invention

[0008] According to the present disclosure, it is possible to provide map information that is dynamically updated with appropriate content.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

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Figure 11

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the following embodiments.

[0011] [First Embodiment] (Map Information Management System) FIG. 1 illustrates a configuration example of the map information management system according to the first embodiment. The map information management system 1 is a system that generates a dynamic map and provides the map information to a vehicle. The map information management system 1 integrates, as pre-dynamic information, information indicating a range for avoiding or suppressing passage based on the position information of the terminal device 50 that issues an emergency notification notifying the occurrence of an event such as a vehicle accident, a fire, or a rockfall into the dynamic map. The events for avoiding or suppressing passage are not limited to those described above, and various events for which an emergency notification is made from the terminal device 50 and for which it is necessary to avoid or suppress passage are targeted.

[0012] The emergency notification means that a person who discovers the occurrence of an event such as a vehicle accident, a fire, or a rockfall notifies a predetermined notification destination. For example, in Japan, an emergency notification is made by making a call from a telephone or the like to a telephone number such as 110 or 119, or by operating an emergency notification operation unit mounted on the vehicle.

[0013] The map information management system 1 includes a map information management device 10 and an emergency notification server device 40. The map information management device 10 and the emergency notification server device 40 are connected so as to enable data communication. The map information management device 10 can transmit data to a plurality of in-vehicle devices 60. The emergency notification server device 40 receives an incoming call from an arbitrary terminal device 50.

[0014] (Emergency Notification Server Device) The emergency notification server device 40 is a server or the like used as a notification destination for emergency notifications. The emergency notification server device 40 is a server device that receives emergency notifications. The emergency notification server device 40 rings an emergency notification from the terminal device 50. The emergency notification server device 40 transmits information regarding the emergency notification received from the terminal device 50 to the map information management device 10. The emergency notification server device 40 may transmit information regarding the emergency notification to the map information management device 10, limited to emergency notifications regarding vehicle accidents, fires, rockfalls, etc. among the events for which an emergency notification has been issued, based on, for example, speech analysis.

[0015] In the present embodiment, the information regarding the emergency notification includes emergency notification position information, which is the position information of the terminal device 50 at the time of the emergency notification.

[0016] The emergency notification position information is position information indicating the notification time when the terminal device 50 issued the emergency notification and the position at the time when the emergency notification was issued. The emergency notification position information may further include event information for specifying, for example, vehicle accidents, fires, and rockfalls.

[0017] The emergency notification server device 40 transmits, for example, information on the resolution of the notified event of the emergency notification to the map information management device 10.

[0018] The information on the resolution of the notified event is provided by a public agency such as a fire department or a police department when the traffic restriction on the road is lifted. The information on the resolution of the notified event is information indicating that the notified event has been resolved, in other words, that the traffic restriction on the road has been lifted.

[0019] (Terminal device) The terminal device 50 is a terminal device such as a portable electronic device carried by a user. The terminal device 50 may be a device mounted on a vehicle. The terminal device 50 makes an emergency call to the emergency notification server device 40.

[0020] The emergency notification is made, for example, by calling telephone numbers 110, 119, etc., or by performing an emergency notification operation via application software for making an emergency notification. The emergency notification may be made, for example, by operating an emergency notification operation unit mounted on the vehicle. The emergency notification includes information indicating the notification time when the emergency notification was issued and the position of the terminal device 50 when the emergency notification was issued.

[0021] (In-vehicle device) The in-vehicle device 60 is a device mounted on a vehicle. The in-vehicle device 60 is equipped with a navigation system. The in-vehicle device 60 acquires map information indicating a dynamic map from the map information management device 10. The in-vehicle device 60 mounted on an autonomous vehicle always acquires map information indicating a dynamic map including the vehicle's own position and the traveling direction. The in-vehicle device 60 mounted on a manually driven vehicle acquires map information indicating a dynamic map including the vehicle's own position and the traveling direction during route guidance. The in-vehicle device 60 mounted on a manually driven vehicle may notify the driver to that effect in the form of a map image, voice, etc. even when not performing route guidance, if there is a section where driving should be avoided or suppressed in the traveling direction. The in-vehicle device 60 may be a portable device used in a vehicle.

[0022] (Map information management device) FIG. 2 is a diagram showing a configuration example of a map information management device according to the first embodiment. The map information management device 10 is realized by, for example, a server device used in a management center that manages the map information management system 1, or an institution that provides a service of acquiring information related to an emergency notification obtained by an external institution and notifying an in-vehicle device 60. The map information management device 10 generates a dynamic map and provides the map information to vehicles. The map information management device 10 integrates, as preparatory information, information indicating a range for avoiding or suppressing passage based on the position information of a terminal device 50 that has issued an emergency notification notifying the occurrence of an event such as a vehicle accident, a fire, and a rockfall into a dynamic map. The map information management device 10 includes a communication unit 11, a storage unit 12, and a control unit (map information management control device) 20.

[0023] The communication unit 11 is a communication unit that executes communication between the map information management device 10 and an external device. The communication unit 11 executes communication with, for example, the in-vehicle device 60. The communication unit 11 is realized by a communication module that communicates by, for example, a method such as 4G (4th Generation), 5G (5th Generation), wireless LAN, and wired LAN. The communication unit 11 may execute communication with a server for transmitting various information to the in-vehicle device 60.

[0024] The storage unit 12 stores various types of information. The storage unit 12 stores information such as the calculation content of the map information management device 10 and programs. The storage unit 12 is, for example, a storage device such as a RAM (Random Access Memory) or an SSD (Solid State Drive).

[0025] The storage unit 12 stores base map information 121 that serves as a basis for generating a dynamic map. A dynamic map generally refers to a mapping of dynamic object data such as pedestrians, automobiles, and traffic conditions to static map data. The base map information 121 is high-precision static map data. The map data includes road information and building information.

[0026] (Map Information Management and Control Device) The control unit 20 is a so-called map information management and control device that controls each part of the map information management device 10. The control unit 20 includes, for example, an information processing device such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and a storage device such as a RAM or a ROM (Read Only Memory). The control unit 20 may be realized by an integrated circuit such as an ASIC or an FPGA. The control unit 20 may be realized by a combination of hardware and software. The control unit 20 executes a program that controls the operation of the map information management device 10 according to the present disclosure. The control unit 20 includes an information acquisition unit 21, an integration range setting unit 22, a map integration unit 23, and a provision control unit 24.

[0027] The information acquisition unit 21 acquires various types of information from the emergency notification server device 40 via the communication unit 11. The information acquisition unit 21 acquires the emergency notification position information of the terminal device 50 that issued the emergency notification from the emergency notification server device 40 via the communication unit 11. The information acquisition unit 21 acquires the cancellation information of the notification event from the emergency notification server device 40 via the communication unit 11.

[0028] The integration range setting unit 22 sets an integration range for integrating quasi-dynamic information into the base map information 121. More specifically, the integration range setting unit 22 sets, based on the emergency notification position information acquired by the information acquisition unit 21, a range for avoiding or suppressing passage (hereinafter referred to as the "restriction range") as the integration range for integrating the quasi-dynamic information.

[0029] The restriction range is a range for avoiding or suppressing passage in order to ensure the safety of surrounding vehicles and to smooth the travel of emergency vehicles. The restriction range is, for example, a large circular area set to include all of a small circular area centered on the emergency notification position information when each terminal device 50 issues an emergency notification. In the present embodiment, information indicating such a restriction range is added as quasi-dynamic information of the dynamic map.

[0030] When the emergency notification position information acquired by the information acquisition unit 21 satisfies a predetermined condition, the integration range setting unit 22 sets the regulation range based on the acquired emergency notification position information as the integration range.

[0031] When an emergency notification satisfies a predetermined number or more of conditions within a predetermined range within a predetermined time, the integration range setting unit 22 sets the regulation range including that predetermined range as the integration range.

[0032] For example, when the number of emergency notifications per unit time within a section satisfies a predetermined condition, such as receiving two or more emergency notifications within one minute in a section, the integration range setting unit 22 may set the regulation range including that section as the integration range.

[0033] For example, when a condition such as receiving two or more emergency notifications within one minute in a section continues, and thus satisfies the condition that the predetermined condition continues, the integration range setting unit 22 may set the regulation range including that section as the integration range.

[0034] For example, the integration range setting unit 22 may set the regulation range to include the positions of each terminal device 50 that originated the emergency notification. For example, the integration range setting unit 22 may set a large circular area that includes all small circular areas centered on the positions of each terminal device 50 from which the emergency notification was originated as the regulation range.

[0035] FIG. 3 is a diagram showing an example of the number of emergency call dispatches according to the first embodiment. FIG. 3 shows the number of emergency call dispatches made in a section of 50 m square in five minutes from time t1 to time t2. Assume that two emergency calls were dispatched in the one-minute period from time t1, and there were four more emergency calls in the next one-minute period within the same section. In this case, for example, it is set as a restricted range for avoiding or suppressing passage to satisfy conditions such as the condition of receiving two or more emergency calls per minute in one section, or the condition that the condition of receiving two or more emergency calls per minute in one section continues. Note that time t3 is the time when, based on another information source, information indicating that the notified event has been resolved is acquired, and the integration of the map in which the range for avoiding or suppressing passage is set is resolved.

[0036] The map integration unit 23 generates a dynamic map by integrating quasi-dynamic information into the base map information 121 stored in the storage unit 12 with the restricted range set by the integration range setting unit 22 as the integration range.

[0037] When the notification event resolution information is acquired by the information acquisition unit 21, the map integration unit 23 removes the quasi-dynamic information of the integration range from the base map information 121 stored in the storage unit 12 and returns the dynamic map to its original state.

[0038] FIG. 4 is a conceptual diagram for explaining a method of generating a dynamic map according to the first embodiment. The shape of the terminal device 50 in FIG. 4 shows an example of the emergency notification position information of the terminal device 50 that made an emergency notification within a predetermined period. The flame mark indicates the actual fire occurrence position. Information indicating the actual fire occurrence position is not included in the dynamic map. The small dashed circle A indicates a small circular area centered on the position of each terminal device 50 where an emergency call was dispatched. The large dashed circle B is a large circular area that includes all the small circular areas and indicates the restricted range set as the restricted range. The filled area of the road is a road on the map set from the large dashed circle B for avoiding or suppressing passage. The large dashed circle B is set as a road for avoiding or suppressing passage.

[0039] FIG. 5 is a conceptual diagram of a dynamic map generated from FIG. 4. The dynamic map provided to a vehicle is a map as shown in FIG. 5. Note that the dynamic map actually provided includes other information as well. In the case of a dynamic map provided to an autonomous vehicle, the road fill-in area does not need to be visualized, and it is sufficient if the roads to be avoided or restricted from passing can be determined by coordinates or the like. In the case of a dynamic map provided to a navigation system, the area to be avoided or restricted from passing is clearly indicated in the map display or in the direction of travel, and an avoidance route is automatically set, or an avoidance request is notified.

[0040] The provision control unit 24 transmits map information indicating the dynamic map stored in the storage unit 12 to the in-vehicle device 60. The provision control unit 24 controls the communication unit 11 to control communication between the map information management device 10 and the in-vehicle device 60. The provision control unit 24 may transmit the map information indicating the dynamic map to a server for transmitting various information to the in-vehicle device 60, together with a command for transmitting the information indicating the dynamic map to the in-vehicle device 60.

[0041] (Map information management control processing) Next, a map information management control method will be described with reference to Fig. 6. Fig. 6 is a flowchart showing the flow of map information management control processing according to the first embodiment. Fig. 6 shows the flow of processing in which the map information management device 10 generates a dynamic map based on emergency notification position information acquired from the emergency notification server device 40. The processing shown in Fig. 6 is constantly and repeatedly executed. In addition, the control unit 20 periodically transmits the dynamic map to the in-vehicle device 60.

[0042] The control unit 20 determines whether or not it has acquired the emergency notification location information (step S101). More specifically, the control unit 20 determines, via the communication unit 11 by the information acquisition unit 21, whether or not it has acquired the emergency notification location information of the terminal device 50 that issued the emergency notification from the emergency notification server device 40. When the control unit 20 determines that it has acquired the emergency notification location information (Yes in step S101), it proceeds to step S102. When the control unit 20 determines that it has not acquired the emergency notification location information (No in step S101), the processing of this flowchart ends.

[0043] When it is determined that there are a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (Yes in step S102), the control unit 20 determines whether or not there are a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (step S102). In other words, the process of step S102 determines whether or not it is necessary to set a regulation range for avoiding or suppressing passage based on a plurality of emergency notifications. That is, when there are a predetermined number or more of emergency notifications within a predetermined range, it is certain that an urgent event has occurred, and it can be estimated that the event is of such a great influence that it is reported from a plurality of terminal devices 50. When the control unit 20 determines that there are a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (Yes in step S102), it proceeds to step S103. When the control unit 20 determines that there are not a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (No in step S102), the processing of this flowchart ends.

[0044] When it is determined that there are a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (Yes in step S102), the control unit 20 sets the regulation range for avoiding or suppressing passage as the integrated range (step S103). More specifically, the control unit 20 sets, by the integrated range setting unit 22, the regulation range based on the acquired emergency notification location information as the integrated range. The control unit 20 proceeds to step S104.

[0045] The control unit 20 integrates it as quasi-dynamic information (step S104). More specifically, the control unit 20 causes the map integration unit 23 to generate a dynamic map by integrating the quasi-dynamic information into the base map information 121 stored in the storage unit 12 using the regulation range set by the integration range setting unit 22 as the integration range. The control unit 20 proceeds to step S105.

[0046] The control unit 20 starts providing the integrated map by the provision control unit 24 (step S105). More specifically, the control unit 20 transmits the dynamic map with the integrated regulation range to the in-vehicle device 60. The in-vehicle device 60 to be transmitted may be, for example, the in-vehicle device of a vehicle existing within a radius of 5 to 10 km centered on the regulation range.

[0047] The control unit 20 determines whether or not it has acquired the notification event cancellation information (step S106). More specifically, the control unit 20 determines whether or not it has acquired the notification event cancellation information by the information acquisition unit 21. When the control unit 20 determines that it has acquired the notification event cancellation information (Yes in step S106), it proceeds to step S107. When the control unit 20 determines that it has not acquired the notification event cancellation information (No in step S106), it executes the process of step S106 again.

[0048] When it is determined that the notification event cancellation information has been acquired (Yes in step S106), the control unit 20 releases the traffic avoidance or suppression range (step S107). More specifically, the control unit 20 generates a dynamic map that does not integrate the regulation range and transmits it to the in-vehicle device 60.

[0049] (Effect) As described above, in the present embodiment, the restricted range based on the emergency notification position information at the time of the emergency notification in the terminal device 50 that has issued the emergency notification is integrated into the map information of the dynamic map. In the present embodiment, the map information of the dynamic map is generated based on an emergency notification from a person who has discovered the occurrence of an event such as a vehicle accident, a fire, or a rockfall. Therefore, the restricted range can be quickly integrated into the dynamic map. Thus, according to the present embodiment, it is possible to provide map information that is dynamically updated with appropriate content.

[0050] According to the present embodiment, it is possible to provide map information indicating a dynamic map including a restricted range that is updated quickly. In the present embodiment, the user can quickly know the range where traffic control is being performed.

[0051] [Second Embodiment] The map information management device 10A according to the second embodiment will be described with reference to FIGS. 7 to 9. FIG. 7 illustrates a configuration example of the map information management system according to the second embodiment. FIG. 8 is a conceptual diagram for explaining a method of generating a dynamic map according to the second embodiment. FIG. 9 is a flowchart showing the flow of the map information management control process according to the second embodiment. In the following description, the same reference numerals or corresponding reference numerals are given to the same components as those of the map information management device 10, and detailed descriptions thereof are omitted. The same applies to the following embodiments. The map information management device 10A is different from the first embodiment in that it includes a position estimation unit 25A and the processing of the integration range setting unit 22A.

[0052] Based on the emergency notification position information acquired by the information acquisition unit 21, the position estimation unit 25A estimates the position where the event notified in the emergency, for example, the event notified such as a vehicle accident or a household matter, has occurred. The position estimation unit 25A may estimate, for example, the centroid position of the emergency notification position information corresponding to a plurality of terminal devices 50 as the event occurrence position.

[0053] The integrated range setting unit 22A sets, as the integrated range, a range for avoiding or suppressing passage based on the event occurrence position estimated by the position estimation unit 25A. The integrated range setting unit 22A may set, for example, a range for avoiding or suppressing passage with a radius centered on the estimated notification event occurrence position.

[0054] FIG. 8 is a conceptual diagram for explaining a method of generating a dynamic map according to the second embodiment. The × marks are the notification event occurrence positions estimated from the emergency notification position information of these terminal devices 50. The dashed circle B is a restricted range set from the estimated notification event occurrence position for avoiding or suppressing passage. For example, in the case of a vehicle accident or a fire, the restricted range is set as a circular area with a radius r of about 50 m from the notification event occurrence position.

[0055] (Map information management control process) Next, with reference to FIG. 9, a map information management control method will be described. The processes of steps S111 to S112 and steps S115 to S118 are the same as the processes of steps S101 to S102 and steps S104 to S107 shown in FIG. 6, respectively, and thus the description thereof will be omitted.

[0056] When it is determined that there are a predetermined number or more of emergency notifications within a predetermined range within a predetermined time (Yes in step S112), the control unit 20A estimates the notification event occurrence position (step S113). The control unit 20A estimates the notification event occurrence position of the emergency notification based on the emergency notification position information acquired by the information acquisition unit 21 by the position estimation unit 25A. The control unit 20A proceeds to step S114.

[0057] The control unit 20 sets, as the integrated range, a restricted range for avoiding or suppressing passage based on the estimated notification event occurrence position (step S114). More specifically, the control unit 20 sets, as the integrated range, a restricted range based on the notification event occurrence position estimated by the position estimation unit 25A.

[0058] (Effect) As described above, in the present embodiment, based on the emergency notification position information, the occurrence position of the notification event of the emergency notification is estimated. In the present embodiment, a restricted range is set based on the estimated event occurrence position. According to the present embodiment, a dynamic map in which the restricted range is more appropriately integrated can be generated.

[0059] [Third Embodiment] The map information management device 10B according to the third embodiment will be described with reference to FIG. 10. FIG. 10 illustrates a configuration example of a map information management system according to the third embodiment. The map information management device 10B is different from the second embodiment in that the density acquisition unit 26B is provided and the processing of the integrated range setting unit 22B.

[0060] The density acquisition unit 26B acquires the density per unit area of the emergency notification position information acquired by the information acquisition unit 21.

[0061] The integrated range setting unit 22B sets a range for avoiding or suppressing passage based on the density acquired by the density acquisition unit 26B and the emergency notification position information.

[0062] The integrated range setting unit 22B sets a wider range for avoiding or suppressing passage as the density acquired by the density acquisition unit 26B is higher. This is because it is considered that the number of people making emergency notifications increases in the case of a major accident or fire.

[0063] The integrated range setting unit 22B may set a wider range for avoiding or suppressing passage when the density acquired by the density acquisition unit 26B and the emergency notification position information satisfy a predetermined condition.

[0064] For example, when the number of emergency notifications per unit time in one section satisfies a second predetermined condition, such as the condition that four or more emergency notifications are received in one minute in one section, the integrated range setting unit 22B may set the section to be included and a wider restricted range than normal as the integrated range.

[0065] When the integration range setting unit 22B satisfies the condition that the second predetermined condition continues, such as when the condition of receiving four or more emergency notifications per minute in a section continues, it may set the integration range to a wider regulation range than normal, including that section.

[0066] For example, in a section that is 50 m square, if five emergency notifications are called within one minute from time t1 and there are another five emergency notifications in the next minute within the same section, for example, to satisfy the condition of receiving four or more emergency notifications per minute in a section or the condition that the condition of receiving four or more emergency notifications per minute in a section continues, a range for avoiding or suppressing passage is set from the position where the notified event occurs, for example, a range of about 70 m in radius.

[0067] (Effect) As described above, in this embodiment, the regulation range can be set based on the density per unit area of the emergency notification position information and the emergency notification position information. According to this embodiment, a dynamic map in which the regulation ranges corresponding to the density are integrated can be generated.

[0068] [Modification Example of the Third Embodiment] The map integration unit 23B may remove the quasi-dynamic information of the integration range from the base map information 121 stored in the storage unit 12 and increase the time until the dynamic map returns to its original state as the density acquired by the density acquisition unit 26B is higher.

[0069] (Effect) As described above, in this modification example, the higher the density, the wider the range for avoiding or suppressing passage can be set.

[0070] [Fourth Embodiment] The map information management device 10B according to the fourth embodiment will be described with reference to FIG. 11. FIG. 11 is a conceptual diagram of a dynamic map according to the fourth embodiment. The processing of the integration range setting unit 22, the map integration unit 23, and the provision control unit 24 of the map information management device 10 is different from that of the first embodiment.

[0071] In this embodiment, different map information is provided to in-vehicle devices 60 located within the restricted range and in-vehicle devices 60 located outside the restricted range.

[0072] In addition to the restricted range, the integration range setting unit 22 sets an integration range as a quasi-restricted range surrounding the periphery of the restricted range.

[0073] The quasi-restricted range is an interference range for promoting evacuation from the restricted range and suppressing inflow into the restricted range. The quasi-restricted range is, for example, a range wider by one section than the restricted range. The quasi-restricted range is, for example, a circular area with a radius larger by a predetermined distance than the restricted range.

[0074] In addition to the restricted range, information indicating the quasi-restricted range surrounding the periphery of the restricted range is added as quasi-dynamic information of the dynamic map by the map integration unit 23.

[0075] The provision control unit 24 transmits different quasi-dynamic information to in-vehicle devices 60 located within the restricted range and in-vehicle devices 60 located outside the restricted range. For example, the provision control unit 24 transmits map information in which quasi-dynamic information not including the quasi-restricted range is integrated to in-vehicle devices 60 located within the restricted range. For example, the provision control unit 24 transmits map information in which quasi-dynamic information including the quasi-restricted range is integrated to in-vehicle devices 60 located outside the restricted range.

[0076] FIG. 11 is a conceptual diagram of a dynamic map according to the fourth embodiment. A map in which a dot-like fine shaded range is integrated as quasi-dynamic information is provided to an in-vehicle device 60 located within the restricted range. A map in which, in addition to the dot-like fine shaded range, a lattice-like coarse shaded range is integrated as quasi-dynamic information is provided to an in-vehicle device 60 located outside the restricted range. In the case of a dynamic map provided for navigation of an in-vehicle device 60 located outside the restricted range, an avoidance route is automatically set or an avoidance request notification is made so as to avoid any of the shaded ranges.

[0077] (Effect) As described above, in the present embodiment, in addition to the restricted range, information indicating a quasi-restricted range surrounding the restricted range can be added as quasi-dynamic information of the dynamic map. Thereby, in the present embodiment, different map information can be provided to in-vehicle device 60 located within the restricted range and in-vehicle device 60 located outside the restricted range. According to the present embodiment, evacuation from the restricted range can be promoted and inflow into the restricted range can be suppressed.

Explanation of Signs

[0078] 1 Map Information Management System 10 Map Information Management Device 11 Communication Unit 12 Storage Unit 121 Base Map Information 20 Control Unit (Map Information Management Control Device) 21 Information Acquisition Unit 22 Integration Range Setting Unit 23 Map Integration Unit 24 Provision Control Unit 40 Emergency Notification Server Device 50 Terminal Device 60 In-Vehicle Device

Claims

1. An information acquisition unit that acquires emergency notification position information when an emergency notification is issued in a terminal device that has issued an emergency notification; An integration range setting unit that sets, as an integration range, a range for avoiding or suppressing passage based on the emergency notification position information acquired by the information acquisition unit; A map integration unit that integrates, into map information, the range for avoiding or suppressing passage set by the integration range setting unit; A map information management control device comprising the above.

2. Further comprising a position estimation unit that estimates the occurrence position of the notification event of the emergency notification based on the emergency notification position information acquired by the information acquisition unit, wherein the integration range setting unit sets a range for avoiding or suppressing passage based on the occurrence position of the notification event estimated by the position estimation unit. The map information management control device according to Claim 1.

3. Further comprising a density acquisition unit that acquires the density per unit area of the emergency notification position information acquired by the information acquisition unit, wherein the integration range setting unit sets a range for avoiding or suppressing passage based on the density acquired by the density acquisition unit and the emergency notification position information. The map information management control device according to Claim 1 or 2.

4. The integration range setting unit sets a wider range for avoiding or suppressing passage as the density acquired by the density acquisition unit is higher. The map information management control device according to Claim 3.

5. An information acquisition step of acquiring emergency notification position information when an emergency notification is issued in a terminal device that has issued an emergency notification; A map integration step of integrating the emergency notification position information acquired in the information acquisition step into map information as a range for avoiding or suppressing passage; A provision control step of providing the map information integrated in the map integration step to a user; A map information management control method executed by a map information management control device.

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