Information processing system, information processing method, and readable medium

Patent metadata

Field	Value
Publication number	US-10625673-B2
Application number	US-201715840129-A
Country	US
Kind code	B2
Filing date	Dec 13, 2017
Priority date	Dec 16, 2016
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

An information processing system is provided with a modeling unit. The modeling unit models, based on a degree of similarity among individual travel histories of a plurality of drivers, individual travel histories of at least one or more drivers from among the individual travel histories of the plurality of drivers to construct a driver model indicating a relationship between conditions of the at least one or more drivers and travel environments of at least one or more vehicles.

First claim

The invention claimed is:

1. An information processing system comprising at least one processor,
wherein the at least one processor models, based on a degree of similarity among individual travel histories of a plurality of drivers, individual travel histories of at least one or more drivers from among the individual travel histories of the plurality of drivers to construct a driver model indicating a relationship between driver conditions of the at least one or more drivers and travel environments of at least one or more vehicles.

2. The information processing system according to claim 1 , further comprising an environment acquisition circuit that acquires a travel environment of a vehicle driven by a driver, whose driving behavior is to be estimated,
wherein the at least one processor further estimates a driver condition associated with the travel environment acquired by the environment acquisition circuit, from among the driver conditions of the at least one or more drivers, in the driver model as a condition of the driver.

3. The information processing system according to claim 2 , further comprising a notification circuit that provides notification to the driver,
wherein the at least one processor further determines whether or not the estimated condition of the driver is dangerous, and when determining that the estimated condition of the driver is dangerous, the at least one processor executes a danger avoidance process for causing the notification circuit to provide information for avoiding danger to the driver.

4. The information processing system according to claim 3 , wherein the at least one processor estimates a direction of a gaze of the driver as the condition of the driver, and when an estimated gaze is not directed to an advancing direction of the vehicle driven by the driver, the at least one processor determines that the estimated gaze is dangerous, and executes the danger avoidance process to cause the notification circuit to issue a warning to the driver.

5. The information processing system according to claim 3 , wherein the at least one processor estimates an intensity level of drowsiness of the driver as the condition of the driver, and when an estimated intensity level of drowsiness is higher than a threshold, the at least one processor determines that the estimated intensity level of drowsiness is dangerous, and executes the danger avoidance process to cause the notification circuit to play predetermined music.

6. The information processing system according to claim 3 , wherein
the notification circuit provides a display of a travel route of the vehicle driven by the driver, and
the at least one processor estimates a heart rate of the driver as the condition of the driver, and when an estimated heart rate is higher than a threshold, the at least one processor determines that the estimated heart rate is dangerous, and executes the danger avoidance process to cause the notification circuit to change the travel route of the vehicle to a travel route for avoiding danger.

7. The information processing system according to claim 3 , wherein the at least one processor estimates a posture of the driver as the condition of the driver, and when the estimated posture is a predetermined posture, the at least one processor determines that the estimated posture is dangerous, and executes the danger avoidance process to cause the notification circuit to issue a warning to the driver.

8. The information processing system according to claim 1 , wherein,
in constructing the driver model,
the at least one processor
constructs the driver model indicating a relationship among the driver conditions of the at least one or more drivers, the travel environments of the at least one or more vehicles, and behaviors of the at least one or more vehicles, and
estimates a behavior of a vehicle associated with the travel environment of the vehicle driven by a driver, whose driving behavior is to be estimated and the condition of the driver in the driver model as a behavior of the vehicle driven by the driver.

9. An information processing method, comprising modeling, based on a degree of similarity among individual travel histories of a plurality of drivers, individual travel histories of at least one or more drivers from among the individual travel histories of the plurality of drivers to construct a driver model indicating a relationship between driver conditions of the at least one or more drivers and travel environments of at least one or more vehicles.

10. A non-transitory readable medium having instructions, the instructions including instructions that cause a processor to perform modeling, based on a degree of similarity among individual travel histories of a plurality of drivers, individual travel histories of at least one or more drivers from among the individual travel histories of the plurality of drivers to construct a driver model indicating a relationship between driver conditions of the at least one or more drivers and travel environments of at least one or more vehicles.

11. The information processing system according to claim 4 , wherein the at least one processor estimates an intensity level of drowsiness of the driver as the condition of the driver, and when an estimated intensity level of drowsiness is higher than a threshold, the at least one processor determines that the estimated intensity level of drowsiness is dangerous, and executes the danger avoidance process to cause the notification circuit to play predetermined music.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Shibata Tadashi
• Mori Toshiya
• Tsuji Masanaga
• Nakano Nobuyuki

Classifications

• A61B5/4812

  Detecting sleep stages or cycles · CPC title

• B60W2040/0872

  Driver physiology · CPC title

• B60W40/08

  related to drivers or passengers · CPC title

• B60W2540/221

  Physiology, e.g. weight, heartbeat, health or special needs · CPC title

• B60W2050/0029

  Mathematical model of the driver · CPC title