Navigation system, navigation method, and navigation program

Abstract

To perform route guidance considering a deterioration in a driver's health in a navigation system.SOLUTION: A navigation system comprises: an evaluation unit that evaluates the degree of quality of a health state of a driver of a movable body; and a route guide unit that searches for a route from the current position of the movable body to a destination and performs guidance of the route searched for. The route guide unit determines a search condition for a route to the destination based on a result of evaluation of the health state of the driver in the evaluation unit.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a navigation system, a navigation method, and a navigation program. [Background technology]

[0002] Patent document 1 discloses a vehicle guidance device that predicts the vehicle's travel location after a predetermined time has elapsed since the vehicle began driving, and if there is no rest area within a predetermined range from the predicted travel location, guides the vehicle user to take a rest each time the vehicle approaches a rest area where the vehicle can stop by between the start of driving and the predetermined time has elapsed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-32558 Summary of the Invention [Problem to be solved by the invention]

[0004] Although the above-described conventional technology of providing drivers with information about rest areas is expected to be effective in helping them recover from fatigue quickly, there is room for improvement in terms of consideration of the possibility of the driver's health deteriorating.

[0005] An object of the present invention is to provide a navigation system that can provide route guidance that takes into consideration the deterioration of the driver's health. [Means for solving the problem]

[0006] One aspect of the present invention includes an evaluation unit that evaluates the health condition of a driver of a mobile body, and a route guidance unit that searches for a route from a current position of the mobile body to a destination and provides guidance on the searched route, and the route guidance unit determines search conditions for the route to the destination based on the evaluation result of the driver's health condition by the evaluation unit.and an area specifying unit that specifies a first area on the map that is within a predetermined distance from the location of a medical facility and a second area on the map that is within a predetermined time range to reach the medical facility by any available means of transportation, wherein the search conditions include a second search condition that requires searching for a route to the destination that passes within the range of the first area and / or the range of the second area. , a navigation system. According to another aspect of the present invention, a load estimation unit is provided that evaluates the degree of driving load estimated for the driver when the driver travels along a route, and the search conditions include a first search condition that requires searching for a route in which the degree of driving load estimated for the driver is lower than a predetermined level. According to another aspect of the present invention, the evaluation unit determines whether the degree of the driver's health condition is within a first degree range predetermined to indicate a health condition worse than a normal health condition, or within a second degree range predetermined to indicate a health condition worse than the first degree range, and when the degree of the driver's health condition is within the first degree range, the route guidance unit searches for a route to the destination using the first search conditions. Book According to another aspect of the invention, the evaluation unit determines whether the degree of the driver's health condition is within a first degree range predetermined to indicate a health condition worse than a normal health condition, or within a second degree range predetermined to indicate a health condition worse than the first degree range, and the route guidance unit searches for a route to the destination using the second search conditions when the degree of the driver's health condition is within the second degree range. According to another aspect of the present invention, a notification unit is provided that notifies the driver, and when the route to the destination searched using the second search conditions includes a route portion that passes through an area on the map that is neither the first area nor the second area, the route guidance unit instructs the notification unit to notify the driver that the searched route includes the route portion. According to another aspect of the present invention, the area identification unit collects information on the degree of congestion at medical-related facilities and identifies the second area as targeting medical-related facilities where the degree of congestion is lower than a predetermined level. According to another aspect of the present invention, the vehicle is provided with a notification unit that notifies the driver, and the evaluation unit evaluates the degree of health of passengers other than the driver who are riding in the vehicle, and when the degree of health of the passenger evaluated by the evaluation unit is within a predetermined range that indicates a health condition worse than a normal health condition, the notification unit notifies the passenger that their health condition is poor. Another aspect of the present invention is a navigation method executed by a computer of a navigation system, comprising: an evaluation step of evaluating the health condition of a driver of a mobile body; and a route guidance step of searching for a route from a current position of the mobile body to a destination and providing guidance on the searched route, wherein the route guidance step determines search conditions for a route to the destination based on the evaluation result of the driver's health condition in the evaluation step. death , The method further includes a step of identifying a first area on the map whose distance from the location of a medical facility is within a predetermined distance range and a second area on the map whose arrival time to reach the medical facility by any available means of transportation is within a predetermined time range, and the search conditions determined in the route guidance step include a second search condition that requires searching for a route to the destination that passes within the range of the first area and / or the range of the second area. , a navigation method. Another aspect of the present invention is to provide a navigation system computer including an evaluation unit that evaluates the health of a driver of a vehicle. ,before a route guidance unit that searches for a route from the current position of the mobile body to a destination and provides guidance along the searched route; and an area specifying unit that specifies a first area on the map that is within a predetermined distance from the location of the medical facility, and a second area on the map that is within a predetermined time range to reach the medical facility by any available means of transportation. and determining search conditions for a route to the destination based on an evaluation result of the driver's health condition by the evaluation unit. death , The search conditions include a second search condition that requires searching for a route to the destination that passes within the first area and / or the second area. , a navigation program. [Effects of the Invention]

[0007] According to the present invention, a navigation system can provide route guidance that takes into consideration the deterioration of the driver's health. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the configuration of a navigation system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing an example of the configuration of the passenger compartment of a moving body. [Figure 3] FIG. 3 is a diagram showing the configuration of a mobile terminal that constitutes the navigation system. [Figure 4] FIG. 4 is a diagram showing the configuration of a navigation device that constitutes the navigation system. [Figure 5] FIG. 5 is a diagram showing an example of a route guidance screen that provides guidance on a route searched for under the second search conditions. [Figure 6] FIG. 6 is a diagram showing an example of the configuration of an HMI control device that constitutes a navigation system. [Figure 7] FIG. 7 is a flowchart showing the procedure of the process of the navigation method executed by the navigation system. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a diagram showing the configuration of a navigation system 1 according to one embodiment of the present invention. The navigation system 1, shown as a dashed-dotted rectangle in the figure, is mounted on a mobile object 2. In this embodiment, the mobile object 2 is, for example, a vehicle. However, the mobile object 2 is not limited to a vehicle, and may be any mobile object that can be driven by a person and travel across a land area.

[0010] The navigation system 1 may include, for example, a navigation device 3 mounted on a mobile object 2, an HMI (Human-Machine Interface) control device 4, and mobile terminals 5a and 5b carried by the driver D and passenger P, respectively, on the mobile object 2. Hereinafter, the mobile terminals 5a and 5b will also be collectively referred to as mobile terminal 5. The mobile terminal 5 is, for example, a smartphone.

[0011] The mobile object 2 further includes a TCU (Telematics Control Unit) 6. The TCU 6 is a wireless communication device and includes a short-range wireless communication device that performs short-range communication such as Bluetooth (registered trademark). The TCU 6 may further include a long-range wireless communication device that performs communication via a communication network (not shown) such as the Internet.

[0012] The navigation device 3, HMI control device 4, and TCU 6 are communicably connected to each other via an in-vehicle network 7. The mobile terminal 5 and TCU 6 are communicably connected to each other via Bluetooth communication, which is the short-range wireless communication. The mobile terminal 5 is communicably connected to the navigation device 3 and HMI control device 4 via the TCU 6.

[0013] In this embodiment, the mobile terminals 5a and 5b receive biometric data of the driver D and the passenger P measured by the wearable terminals 8a and 8b worn by the driver D and the passenger P, respectively, and evaluate the health status of the driver D and the passenger P. Hereinafter, the wearable terminals 8a and 8b will also be collectively referred to as the wearable terminal 8.

[0014] The navigation device 3 acquires the above-mentioned evaluation result of the health condition of the driver D from the mobile terminal 5a, and based on the evaluation result, determines search conditions for a route to a destination specified by the driver D. Then, the navigation device 3 performs a route search in accordance with the above-mentioned determined search conditions, determines one route, and provides route guidance to the driver D via the HMI control device 4.

[0015] FIG. 2 is a diagram showing an example of the configuration of a passenger compartment of a vehicle 2. An HMI control device 4 and an interior camera 13 are arranged on an instrument panel 11 in front of a driver's seat 10, approximately in the center of the vehicle width direction. The HMI control device 4 is, for example, a display audio device, and displays images and videos (hereinafter simply referred to as images) on a first touch panel 12 and acquires information input by touch operations on the first touch panel 12. The HMI control device 4 also outputs audio and receives audio inputs from, for example, a speaker 14 and a microphone 15 provided on the driver's seat side of the instrument panel 11. The interior camera 13 is, for example, a DMC (Driver Monitoring Camera), and captures images of the interior of the vehicle, including an image of the driver. A heartbeat sensor 17 for detecting the heartbeat of the driver D as biometric data may be provided on a steering wheel 16 in front of the driver's seat 10.

[0016] FIG. 3 is a diagram showing the configuration of the mobile terminal 5 that constitutes the navigation system 1. As shown in FIG. The mobile terminal 5 is, for example, a smartphone. The mobile terminal 5 includes a first processor 20, a first memory 21, a first communicator 22, a second touch panel 23, a camera 24, a first GNSS (Global Navigation Satellite System) sensor 25, and an acceleration sensor 26. The acceleration sensor 26 is, for example, a nine-axis acceleration sensor.

[0017] The first memory 21 may be configured with a volatile and / or non-volatile semiconductor memory. The first communicator 22 includes a transceiver for allowing the mobile terminal 5 to communicate with the wearable terminal 8 and the navigation device 3. For example, the first communicator 22 may include a short-range communicator for performing short-range communication between the wearable terminal 8 and the TCU 6 in accordance with Bluetooth communication standards or the like. The first communicator 22 may also include a long-range communicator for performing communication via a communication network such as the Internet.

[0018] The first processor 20 is, for example, a computer including a CPU (Central Processing Unit) and the like. The first processor 20 may have a configuration including a ROM (Read Only Memory) in which a program is written, a RAM (Random Access Memory) for temporarily storing data, and the like. The first processor 20 includes an acquisition unit 30 and an evaluation unit 31 as functional elements or functional units.

[0019] These functional elements of the first processor 20 are realized, for example, by the first processor 20, which is a computer, executing a first program 27 stored in the first memory 21. The first program 27 can be stored in any computer-readable storage medium. Alternatively, the first program 27 may be downloaded from an external server and stored in the first memory 21. Alternatively, all or part of the functional elements of the first processor 20 may be configured by hardware, each including one or more electronic circuit components. Here, the first program 27, together with the second program 44 executed by the navigation device 3 and the third program 63 executed by the HMI control device 4, constitute the navigation program in the present disclosure.

[0020] The acquisition unit 30 acquires biometric data of the owner (driver D or passenger P; the same applies hereinafter) of the mobile terminal 5. In this embodiment, the acquisition unit 30 acquires the owner's biometric data (pulse wave, heart rate, blood pressure, etc.) from a wearable terminal 8 worn by the owner. However, the wearable terminal 8 is just one example, and the acquisition unit 30 can acquire the owner's biometric data from various devices that can measure biometric data.

[0021] For example, the acquisition unit 30 may acquire a facial image of the owner using the camera 24 included in the mobile terminal 5, and acquire biometric data (e.g., blood pressure, pulse wave, heart rate, etc.) of the owner from the facial image according to conventional technology (see, for example, JP 2022-008806 A). Alternatively, the acquisition unit 30 may acquire the biometric data of the owner from a facial image of the owner captured in an interior image captured by the interior camera 13 when the owner is carrying his / her mobile terminal 5 and boards the moving object 2. Furthermore, if the driver D is the owner, the acquisition unit 30 may acquire the heart rate, which is biometric data of the driver D, from the heart rate sensor 17 when the driver D grips the steering wheel 16. The acquisition unit 30 may acquire the facial image captured by the interior camera 13 and information on the heart rate detected by the heart rate sensor 17 via the HMI control device 4.

[0022] In addition, the identification of the owner's facial image from the image captured by the camera 24 or the indoor camera 13 can be performed, for example, by storing a reference facial image of the owner in the first memory 21 in advance and performing a matching process with the reference facial image in accordance with conventional technology.

[0023] For example, in response to receiving an evaluation information request from the navigation device 3, the evaluation unit 31 evaluates the health state and transmits the result of the evaluation to the navigation device 3.

[0024] The evaluation of the health condition by the evaluation unit 31 may be performed, for example, by calculating an evaluation score (number of points) indicating the quality of the health condition based on a scoring standard for biological data such as blood pressure, heart rate, pulse wave, etc. The evaluation score may be, for example, such that the better the health condition, the higher the score. The scoring standard may be determined in advance.

[0025] The evaluation unit 31 determines whether the degree of health of the driver D is within a first degree range, which is predetermined as a health state worse than a normal health state, or within a second degree range, which is predetermined as a health state worse than the first degree range. For example, the evaluation unit 31 determines that the health state is good when the evaluation score is greater than a first predetermined value. Furthermore, the evaluation unit 31 determines that the degree of health state is within the first degree range when the evaluation score is less than the first predetermined value and equal to or greater than a second predetermined value (the second predetermined value is set to be smaller than the first predetermined value). Furthermore, the evaluation unit 31 determines that the degree of health state is within the second degree range when the evaluation score is less than the second predetermined value.

[0026] Next, the configuration of the navigation device 3 provided in the moving object 2 will be described. FIG. 4 is a diagram showing an example of the configuration of the navigation device 3. As shown in FIG. The navigation device 3 includes a second processor 40, a second memory 41, a second communicator 42, and a second GNSS sensor 43.

[0027] The second memory 41 may be configured by a volatile and / or non-volatile semiconductor memory. The second communicator 42 is a transceiver for communicating with in-vehicle devices such as the HMI control device 4 and the TCU 6 via the in-vehicle network 7.

[0028] The second processor 40 is, for example, a computer including a CPU, etc. The second processor 40 may have a configuration including a ROM in which a program is written, a RAM for temporarily storing data, etc. The second processor 40 includes, as functional elements or functional units, a route guidance unit 50, a load estimation unit 51, an area identification unit 52, and a notification unit 53.

[0029] These functional elements of the second processor 40 are realized, for example, by the second processor 40, which is a computer, executing a second program 44 stored in the second memory 41. The second program 44 can be stored in any computer-readable storage medium. Alternatively, all or part of the functional elements of the second processor 40 may be configured by hardware including one or more electronic circuit components. The second program 44, together with the first program 27 executed by the mobile terminal 5 and the third program 63 executed by the HMI control device 4, constitute the navigation program in the present disclosure.

[0030] The route guidance unit 50 searches for a route from the current position of the mobile object 2 to the destination, and in cooperation with the HMI control device 4, provides guidance on the searched route using the first touch panel 12 and the speaker 14. Here, the destination can be input by the driver D using the first touch panel 12, for example, according to conventional technology, and can be acquired by the route guidance unit 50 via the HMI control device 4.

[0031] In this embodiment, in particular, the route guidance unit 50 determines search conditions for a route to the destination based on the evaluation result of the health condition of the driver D by the evaluation unit 31 of the mobile terminal 5a of the driver D. This allows the navigation system 1 to provide route guidance that takes into consideration the deterioration of the health of the driver D.

[0032] For example, when a destination is input, the route guidance unit 50 sends an evaluation information request to the mobile terminal 5, and obtains from each mobile terminal 5 the evaluation results of the owner's health condition from the evaluation unit 31 of the mobile terminal 5 of each owner.

[0033] In addition, the route guidance unit 50 can, for example, in accordance with conventional technology, identify the position of each mobile terminal 5 within the vehicle cabin based on the received radio wave strength of the Bluetooth communication received by the second communication device 42 from each mobile terminal 5, and determine whether the acquired health condition evaluation result relates to the driver D or the passenger P.

[0034] In this embodiment, the search conditions may include a first search condition that requires a search for a route in which the degree of driving load estimated for driver D is lower than a predetermined level. In detail, for example, the first search condition may be a search for a route in which a load score calculated along the route by a load estimation unit 51 (described later) is less than a predetermined value. This allows a search for a route in which the driver's driving load is low to be included as a route search option when the driver's health condition is poor.

[0035] The search conditions may also include a second search condition that requires a route that passes through a first area where the distance to a medical facility is within a predetermined range or a second area where the arrival time to the medical facility is within a predetermined range. Specifically, for example, the second search condition may require a route where the ratio of the total distance of the route that passes through the first area and / or the second area to the total distance of the route to the destination is equal to or greater than a predetermined ratio (e.g., 80% or greater). This allows a route search option for when the driver's health is poor to include a search for a route that makes it easy to reach a medical facility in case of an emergency.

[0036] The degree of driving load estimated for the driver D is calculated by a load estimation unit 51, which will be described later. The first and second regions are identified by a region identification unit 52, which will be described later.

[0037] For example, when the degree of health condition of the driver D evaluated by the evaluation unit 31 of the mobile terminal 5a is within a first degree range that is predetermined as a health condition worse than a normal health condition, the route guidance unit 50 searches for a route to the destination using the first search condition. This makes it possible to prevent or suppress further deterioration of the health condition of the driver D while driving the mobile object 2.

[0038] When there are multiple routes that meet the first search conditions, the route guidance unit 50 can display the multiple routes on the first touch panel 12, and when the driver selects one of the multiple routes, provide guidance for the selected route. The selection can be made by touching the first touch panel 12 according to conventional techniques.

[0039] For example, when the degree of health condition of the driver D evaluated by the evaluation unit 31 of the mobile terminal 5a is within a second degree range that is predetermined as a health condition worse than the first degree range, the route guidance unit 50 searches for a route to the destination using the second search conditions. This makes it possible to guide the driver D to a route that will allow him or her to easily reach a medical facility in case of an emergency.

[0040] When there are multiple routes that meet the second search conditions, the route guidance unit 50 can display the multiple routes on the first touch panel 12, and when the driver selects one of the multiple routes, provide guidance for the selected route. The selection can be made by touching the first touch panel 12 according to conventional techniques.

[0041] Furthermore, when a route to a destination searched for using the second search conditions includes a route portion that passes through an area on the map that is neither the first area nor the second area, the route guidance unit 50 notifies the driver that the searched route includes the route portion. The route guidance unit 50 can issue the notification by instructing the notification unit 53, which will be described later. For example, the route guidance unit 50 issues the notification when starting route guidance using a route searched for using the second search conditions. This notifies the driver in advance that a route portion that is neither the first area nor the second area on the map will be passed through, allowing the driver to take measures such as quickly passing through the route portion.

[0042] FIG. 5 is a diagram showing an example of a route guidance screen displayed on the first touch panel 12 when navigating a route searched under the second search conditions. The illustrated route guidance screen 70 displays, superimposed on a map 71, a current location icon 72 indicating the current location of the mobile object 2, a destination icon 73 indicating the destination, and a route 74 searched under the second search conditions. The route guidance screen 70 also displays, superimposed on the map 71, six area displays 75 indicating the first area or the second area. A route portion 76 of the route 74 where no area display 75 is superimposed is a route portion that passes through an area on the map that is neither the first area nor the second area. The disk-shaped area display 75 shown in FIG. 5 is merely an example, and the shape of the area display 75 may be any shape corresponding to the shape of the first area or the second area on the map.

[0043] Whether to use the first area or the second area under the second search condition can be set in advance by an occupant such as the driver D via the first touch panel 12. Alternatively, the route guidance unit 50 may display a selection button superimposed on the route guidance screen 70 for the occupant to indicate whether to use the first area or the second area under the second search condition.

[0044] 4, the load estimation unit 51 evaluates the degree of driving load of the driver estimated for the route when the driver travels along the route. Here, the driving load can be calculated based on load factors such as the number of right and left turns until the destination is reached, the complexity of the road branch structure (number of branches, etc.), the road width at each section of the route, the average traffic volume, and / or the frequency of congestion. These load factors can be acquired from map information or a server such as a traffic control center.

[0045] For example, the driving load may be a load score obtained by adding up numerical values ​​representing the degree of driving load felt by a typical driver due to load factors at each section of the route along the route. The load score may be calculated so that, for example, the greater the driving load, the larger the value.

[0046] The load estimation unit 51, for example, calculates a load score for each of a plurality of route candidates to the destination searched for by the route guidance unit 50, and notifies the route guidance unit 50 of the calculated load score for each route candidate.

[0047] The area identification unit 52 identifies a first area on the map that is within a predetermined distance from the location of a medical facility, and a second area on the map that is within a predetermined time range of the arrival time to reach the medical facility by any available means of transportation.

[0048] Here, medical facilities refer to facilities related to medical care or medical treatment by doctors, such as hospitals, clinics, and bases for doctor helicopters (or air ambulances, HEMS (Helicopter Emergency Medical Service)).

[0049] The area identification unit 52 may identify the location and extent of the first area based on, for example, the locations of medical facilities and the distances of roads connecting to the medical facilities. The area identification unit 52 may identify the location and extent of the second area based on information such as the location of medical facilities and the distances of roads connecting to the medical facilities, as well as traffic congestion, the current location of the ambulance, and the types of transportation means available (ambulance, helicopter ambulance, train, bus, and / or taxi). Here, the information required to identify the first area and the second area may be obtained from map information or a server such as a traffic control center.

[0050] Alternatively or in addition to the above, when information about areas equivalent to the first and second areas is obtained from an external server such as a server at a traffic control center, the area identification unit 52 may acquire the information from the external server and identify the first and second areas.

[0051] Furthermore, when identifying the first and second areas, the area identification unit 52 can collect information on the degree of congestion at medical facilities, and identify the first and second areas by targeting medical facilities whose degree of congestion is lower than a predetermined level. medical care The information may be the number of people waiting for medical treatment at the related facility (waiting headcount) or the waiting time for medical treatment. The area identification unit 52 may identify the first and second areas, for example, for medical facilities where the number of people waiting is less than a predetermined number or the waiting time is less than a predetermined time. This can prevent a situation in which the driver is unable to receive prompt treatment at the medical facility. Note that information about the congestion at the medical facility may be obtained, for example, from a server operated by the medical facility.

[0052] The notification unit 53 notifies the driver. The notification can be made, for example, by the first touch panel 12 and / or the speaker 14 via the HMI control device 4. As described above, the notification unit 53 notifies the driver, for example, in response to an instruction from the route guidance unit 50, that the route to the destination searched for using the second search conditions includes a route portion that passes through an area on the map that is neither the first area nor the second area.

[0053] Furthermore, the notification unit 53 acquires the result of the evaluation of the health condition of the passenger P by the evaluation unit 31 of the mobile terminal 5b from the mobile terminal 5b of the passenger P. Then, when the degree of the health condition of the passenger P evaluated by the evaluation unit 31 of the mobile terminal 5b is within a predetermined range indicating a health condition worse than a normal health condition, the notification unit 53 notifies the driver D that the health condition of the passenger P is poor. This allows the driver D to recognize that the health condition of the passenger P is poor even without a direct notification from the passenger P, and to take measures such as driving or selecting a route that takes the health condition of the passenger P into consideration.

[0054] The above notification may be a notification about passenger P's poor health, a question about route guidance such as "Would you like to take a route closer to the hospital?" or "We recommend that you head to the hospital immediately," or a notification of a suggestion or recommendation regarding route guidance.

[0055] Next, the configuration of the HMI control device 4 provided in the moving object 2 will be described. FIG. 6 is a diagram showing an example of the configuration of the HMI control device 4. The HMI control device 4 includes a third processor 60, a third memory 61, and a third communicator 62.

[0056] The third memory 61 may be configured by a volatile and / or non-volatile semiconductor memory. The third communicator 62 is a transceiver for allowing the HMI control device 4 to communicate with in-vehicle devices such as the navigation device 3 and the TCU 6 via the in-vehicle network 7.

[0057] The third processor 60 is, for example, a computer equipped with a CPU, etc. The third processor 60 may have a configuration including a ROM in which a program is written, a RAM for temporarily storing data, etc. The third processor 60 includes an HMI control unit 64 and an information providing unit 65 as functional elements or functional units.

[0058] These functional elements of the third processor 60 are realized, for example, by the third processor 60, which is a computer, executing a third program 63 stored in a third memory 61. The third program 63 can be stored in any computer-readable storage medium. Alternatively, all or part of the functional elements of the third processor 60 may be configured by hardware including one or more electronic circuit components. The third program 63, together with the first program 27 executed by the mobile terminal 5 and the second program 44 executed by the navigation device 3, constitute a driver assistance program in the present disclosure.

[0059] The HMI control unit 64 controls the operation of the first touch panel 12, speaker 14, and microphone 15, which are HMI devices. Specifically, the HMI control unit 64 displays images, videos, text, and / or graphics such as icons on the first touch panel 12 and outputs sounds including voice to the speaker 14, in response to instructions from the navigation device 3 and / or the portable terminal 5. Furthermore, the HMI control unit 64 receives inputs by touch operation on the first touch panel 12 from the driver D or passenger P, etc., in response to instructions from the navigation device 3 or the portable terminal 5, and receives voice inputs to the microphone 15, and transmits these inputs to the navigation device 3 or the portable terminal 5.

[0060] In response to an instruction from the navigation device 3 or the mobile terminal 5, the information providing unit 65 transmits the indoor image captured by the indoor camera 13 and the information on the heart rate detected by the heart rate sensor 17 to the navigation device 3 or the mobile terminal 5.

[0061] Next, the navigation method executed by the navigation system 1 will be described. 7 is a flowchart showing the processing steps of the navigation method. The process shown in FIG. 7 is repeatedly executed.

[0062] When the process starts, first, the route guidance unit 50 of the navigation device 3 determines whether a destination has been input (S100). The destination is input to the first touch panel 12 by, for example, the driver D or another passenger P, according to conventional technology. The navigation device 3 acquires the destination input to the first touch panel 12 via the HMI control device 4.

[0063] If a destination is not input (S100, NO), the route guidance unit 50 repeats step S100 and waits for a destination to be input. On the other hand, if a destination is input (S100, YES), the route guidance unit 50 acquires the input destination and transmits an evaluation information request to the mobile terminals 5a and 5b, respectively, for the results of evaluation of the health conditions of the driver D and the passenger P (S102).

[0064] In response to receiving the evaluation information request, the evaluation unit 31 of the mobile terminal 5a evaluates the degree of health condition of the driver D (S104) and transmits the evaluation result to the navigation device 3. Here, step S104 corresponds to the evaluation step in the present disclosure.

[0065] Furthermore, in response to receiving the evaluation information request, the evaluation unit 31 of the mobile terminal 5b evaluates the degree of health condition of the passenger P (S106) and transmits the evaluation result to the navigation device 3. The route guidance unit 50 and the notification unit 53 acquire the evaluation result.

[0066] If the health condition of passenger P in step S106 is within a predetermined range indicating a health condition worse than a normal health condition, notification unit 53 notifies passenger P that his / her health condition is poor (S108).

[0067] Next, the route guidance unit 50 determines whether the degree of the driver D's health condition is within a first degree range based on the acquired evaluation result of the driver D's health condition in step S104 (S110).

[0068] Then, in step S110, if the degree of driver D's health condition is not within the first degree range (S110, NO), the route guidance unit 50 determines whether the degree of driver D's health condition is within a second degree range, which indicates a health condition worse than the first degree range (S112). If the degree of driver D's health condition is within the second degree range (S112, YES), the route guidance unit 50 searches for a route to the destination using the second search conditions (S114) and displays the searched route on the first touch panel 12 via the HMI control device 4 (S116). Then, in response to one of the displayed routes being selected via the first touch panel 12, the route guidance unit 50 starts route guidance for the selected route (S118). The selection and route guidance can be performed via the first touch panel 12 according to conventional techniques.

[0069] Next, when the route guidance unit 50 includes a route portion that passes through an area on the map that is neither the first area nor the second area, it instructs the notification unit 53 to notify the user that the route being guided includes the route portion (S120).

[0070] Next, the route guidance unit 50 determines whether the destination has been reached (S122). If the destination has not been reached (NO in S122), the route guidance unit 50 returns to step S122 and repeats the process, continuing the route guidance started in step S114 until the destination is reached. On the other hand, if the destination has been reached (YES in S122), the route guidance unit 50 ends this process.

[0071] On the other hand, if the degree of health condition of driver D is within the first degree range in step S110 (S110, YES), the route guidance unit 50 searches for a route to the destination using the first search conditions (S124) and displays the searched route on the first touch panel 12 via the HMI control device 4 (S126). Then, in response to one of the displayed routes being selected via the first touch panel 12, the route guidance unit 50 starts route guidance for the selected route (S128), and then proceeds to step S122.

[0072] On the other hand, in step S112, if the degree of driver D's health condition is not within the second degree range (i.e., driver D's health condition is normal) (S112, NO), the route guidance unit 50 searches for a route to the destination using normal search conditions such as distance priority, time priority, or general road priority, in accordance with conventional technology (S130), and displays the searched route (S132). Then, in response to one of the displayed routes being selected via the first touch panel 12, the route guidance unit 50 starts route guidance for the selected route (S134), and proceeds to step S122. In the above, steps S110 to S120 and steps S124 to S134 correspond to the route guidance steps in this disclosure.

[0073] [Other embodiments] In the above-described embodiment, when a destination is input, the health condition of the driver D is evaluated and route search conditions are determined, as shown in the flow chart of Fig. 7. However, the evaluation and determination of the route search conditions may be repeated, for example, at predetermined time intervals until the destination is reached. This makes it possible to dynamically change the guide route in response to changes in the health condition of the driver D while driving to the destination.

[0074] Furthermore, the route guidance unit 50 may be further configured to perform a route search under the first search conditions or the second search conditions based on an instruction from a passenger such as the driver. For example, the route guidance unit 50 may display a button for the passenger to instruct a route search under the first search conditions or the second search conditions during route guidance. This allows the driver to prepare for an emergency by instructing a route search under the second search conditions, for example, when the notification unit 53 notifies the passenger that their health is poor.

[0075] The functional elements of the navigation device 3 may be provided in the driver's mobile terminal 5a. In this case, the navigation system 1 may be configured with the mobile terminals 5a and 5b and the HMI control device 4. The route guidance unit 50 provided in the mobile terminal 5a may communicate with the HMI control device 4 via short-range communication such as Bluetooth and provide route guidance using the first touch panel 12. In this case, the first program 27 executed by the mobile terminal 5a and the third program 63 executed by the HMI control device 4 constitute a navigation program.

[0076] Alternatively, the evaluation unit 31 included in the mobile terminal 5 may be included in the navigation device 3. In this case, the navigation system 1 is made up of the navigation device 3 and the HMI control device 4. The second program 44 executed by the navigation device 3 and the third program 63 executed by the HMI control device 4 constitute a navigation program. The evaluation unit 31 included in the navigation device 3 may, for example, acquire biometric data such as blood pressure of the driver D and the passenger P according to conventional technology based on facial images of the driver D and the passenger P captured by the interior camera 13, and evaluate the health status of the driver D and the passenger P. In addition to this, the evaluation unit 31 may also evaluate the health status of the driver D based on information about the driver D's heart rate obtained from the heart rate sensor 17.

[0077] Alternatively, in the above, the evaluation unit 31 to be provided in the navigation device 3 may be, for example, a health care application (e.g., the owner's blood pressure, number of steps, sleep The degree of health of the driver D and / or passenger P may be evaluated based on the results of the health status evaluation performed by an application (such as an application that records time, etc.).

[0078] The present invention is not limited to the configurations of the above-described embodiments, and can be implemented in various forms without departing from the spirit of the invention.

[0079] [Configuration supported by the above embodiment] The above-described embodiment supports the following configurations.

[0080] (Configuration 1) A navigation system comprising an evaluation unit that evaluates the degree of health of a driver of a mobile body, and a route guidance unit that searches for a route from the current position of the mobile body to a destination and provides guidance on the searched route, wherein the route guidance unit determines search conditions for a route to the destination based on the evaluation results of the driver's health condition by the evaluation unit. According to the navigation system of configuration 1, route guidance can be provided that takes into consideration the deterioration of the driver's health.

[0081] (Configuration 2) A navigation system as described in Configuration 1, comprising a load estimation unit that evaluates the degree of driving load estimated for the driver when the driver travels along a route, and the search conditions include a first search condition that requires searching for a route in which the degree of driving load estimated for the driver is lower than a predetermined level. According to the navigation system of configuration 2, route search options for when the driver's health is poor can include searching for routes that place less strain on the driver.

[0082] (Configuration 3) The navigation system described in Configuration 2, wherein the evaluation unit determines whether the degree of the driver's health condition is within a first degree range predetermined to indicate a health condition worse than a normal health condition or within a second degree range predetermined to indicate a health condition worse than the first degree range, and the route guidance unit searches for a route to the destination using the first search conditions when the degree of the driver's health condition is within the first degree range. According to the navigation system of configuration 3, the range of the degree of health condition when the driver's health condition is poor is divided into two ranges, and when the driver's health condition is mildly poor, the system guides the driver to a route that involves less driving load, thereby preventing the driver's health condition from further deteriorating.

[0083] (Configuration 4) A navigation system as described in any of configurations 1 to 3, comprising an area identification unit that identifies a first area on a map that is within a predetermined distance from the location of a medical-related facility, and a second area on the map that is within a predetermined time range to reach the medical-related facility by any available means of transportation, and the search conditions include a second search condition that requires searching for a route to the destination that passes within the range of the first area and / or the range of the second area. According to the navigation system of configuration 4, route search options for when the driver's health condition is poor can include searching for routes that make it easier to reach medical facilities in case of an emergency.

[0084] (Configuration 5) The navigation system described in Configuration 4, wherein the evaluation unit determines whether the degree of the driver's health condition is within a first degree range predetermined to indicate a health condition worse than a normal health condition or within a second degree range predetermined to indicate a health condition worse than the first degree range, and the route guidance unit searches for a route to the destination using the second search conditions when the degree of the driver's health condition is within the second degree range. According to the navigation system of configuration 5, the range of the degree of health condition when the health condition is poor is divided into two ranges, and when the driver's health condition is in the second range that is worse than the first range, the driver can be made to easily reach a medical facility in preparation for an emergency.

[0085] (Configuration 6) A navigation system as described in Configuration 5, further comprising a notification unit that notifies the driver, and when the route to the destination searched using the second search conditions includes a route portion that passes through an area on the map that is neither the first area nor the second area, the route guidance unit instructs the notification unit to notify the driver that the searched route includes the route portion. composition According to the navigation system of 6, the driver is notified in advance that he or she will be passing through a route in an area on the map that is neither the first area nor the second area, so the driver can take measures such as passing through the route quickly.

[0086] (Configuration 7) A navigation system described in any one of configurations 4 to 6, wherein the area identification unit collects information on the degree of congestion at medical-related facilities and identifies the second area as targeting medical-related facilities where the degree of congestion is lower than a predetermined level. According to the navigation system of configuration 7, it is possible to prevent a situation in which the driver is unable to receive prompt treatment at a medical facility.

[0087] (Configuration 8) A navigation system as described in any of configurations 1 to 7, further comprising a notification unit that notifies the driver, wherein the evaluation unit evaluates the degree of health of passengers other than the driver who are riding in the vehicle, and the notification unit notifies the passenger that their health is poor when the degree of health of the passenger evaluated by the evaluation unit is within a predetermined range that indicates a health condition worse than a normal health condition. According to the navigation system of configuration 8, even if there is no direct notification from the passenger, the driver can recognize that the passenger is in poor health and take measures such as driving or selecting a route that takes the passenger's health condition into consideration.

[0088] (Configuration 9) A navigation method executed by a computer of a navigation system, comprising an evaluation step of evaluating the degree of health condition of a driver of a mobile body, and a route guidance step of searching for a route from the current position of the mobile body to a destination and providing guidance on the searched route, wherein in the route guidance step, search conditions for a route to the destination are determined based on the evaluation results of the driver's health condition in the evaluation step. According to the navigation method of configuration 9, route guidance can be provided that takes into consideration the deterioration of the driver's health.

[0089] (Configuration 10) A navigation program that causes a computer of a navigation system to function as an evaluation unit that evaluates the degree of health of a driver of a mobile body, and as a route guidance unit that searches for a route from the current position of the mobile body to a destination and provides guidance on the searched route, wherein the route guidance unit determines search conditions for a route to the destination based on the evaluation results of the driver's health condition in the evaluation unit. According to the navigation program of configuration 10, it is possible to realize a navigation system that can provide route guidance that takes into consideration the deterioration of the driver's health. [Explanation of symbols]

[0090] 1...navigation system, 2...mobile body, 3...navigation device, 4...HMI control device, 5, 5a, 5b...mobile terminal, 6...TCU, 7...in-vehicle network, 8, 8a, 8b...wearable terminal, 10...driver's seat, 11...instrument panel, 12...first touch panel, 13...interior camera, 14...speaker, 15...microphone, 16...steering wheel, 17...heart rate sensor, 20...first processor, 21...first memory, 22...first communicator, 23...second touch panel, 24...camera, 25...first GNSS sensor, 26...acceleration sensor, 27...first program, 30...acquisition unit, 31...evaluation unit, 40...second processor, 41...second memory, 42...second communication device, 43...second GNSS sensor, 44...second program, 50...route guidance unit, 51...load estimation unit, 52...area identification unit, 53...notification unit, 60...third processor, 61...third memory, 62...third communication device, 63...third program, 64...HMI control unit, 65...information provision unit, 70...route guidance screen, 71...map, 72...current location icon, 73...destination icon, 74...route, 75...area display, D...driver, P...passenger.

Claims

1. an evaluation unit that evaluates the health status of a driver of the mobile body; a route guidance unit that searches for a route from the current position of the mobile body to a destination and provides guidance on the searched route; Equipped with The route guidance unit determines search conditions for a route to the destination based on the evaluation result of the driver's health state by the evaluation unit, and an area specifying unit that specifies a first area on the map that is within a predetermined distance from the location of a medical facility, and a second area on the map that is within a predetermined time range to reach the medical facility by any available means of transportation; the search conditions include a second search condition that requires searching for a route to the destination that passes within the first area and / or the second area; Navigation system.

2. a load estimation unit that estimates a degree of driving load estimated for the driver when the driver travels along a route; the search conditions include a first search condition that requires searching for a route in which a degree of driving load estimated for the driver is lower than a predetermined level; The navigation system of claim 1 .

3. the evaluation unit determines whether the degree of the driver's health state is within a first degree range that is predetermined as a health state worse than a normal health state, or within a second degree range that is predetermined as a health state worse than the first degree range; the route guidance unit searches for a route to the destination under the first search condition when the degree of health of the driver is within the first degree range; The navigation system according to claim 2 .

4. the evaluation unit determines whether the degree of the driver's health state is within a first degree range that is predetermined as a health state worse than a normal health state, or within a second degree range that is predetermined as a health state worse than the first degree range; the route guidance unit searches for a route to the destination under the second search condition when the degree of health of the driver is within the second degree range; The navigation system of claim 1 .

5. a notification unit that notifies the driver, When the route to the destination searched for using the second search condition includes a route portion that passes through an area on the map that is neither the first area nor the second area, the route guidance unit instructs the notification unit to notify the user that the searched route includes the route portion.

5. The navigation system according to claim 4.

6. the area specifying unit collects information on the degree of congestion at medical-related facilities, and specifies the second area as a target of medical-related facilities where the degree of congestion is lower than a predetermined level. The navigation system of claim 1 .

7. a notification unit that notifies the driver, the evaluation unit evaluates the health status of passengers other than the driver who are riding in the moving object; the notification unit notifies the passenger that his / her health condition is poor when the degree of the health condition of the passenger evaluated by the evaluation unit is within a predetermined range indicating a health condition worse than a normal health condition.

7. A navigation system according to any one of claims 1 to 6.

8. A navigation method executed by a computer in a navigation system, comprising: an evaluation step of evaluating the health status of a driver of the mobile body; a route guidance step of searching for a route from the current position of the mobile body to a destination and providing guidance on the searched route; Equipped with In the route guidance step, search conditions for a route to the destination are determined based on the evaluation result of the driver's health state in the evaluation step; The method further includes a step of identifying a first area on the map that is within a predetermined distance from the location of the medical facility, and a second area on the map that is within a predetermined time range to reach the medical facility by any available means of transportation, the search conditions determined in the route guidance step include a second search condition that is a condition for searching for a route to the destination that passes within the first area and / or the second area; Navigation methods.

9. The navigation system computer an evaluation unit that evaluates the health condition of a driver of the vehicle; a route guidance unit that searches for a route from the current position of the mobile body to a destination and provides guidance on the searched route; and an area specifying unit that specifies a first area on the map that is within a predetermined distance range from the location of a medical facility, and a second area on the map that is within a predetermined time range from the location of a medical facility by any available means of transportation; A navigation program that functions as the route guidance unit determines search conditions for a route to the destination based on the evaluation result of the driver's health state by the evaluation unit; the search conditions include a second search condition that requires searching for a route to the destination that passes within the first area and / or the second area; Navigation program.

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