RISK INFORMATION PROCESSING METHOD AND SERVER DEVICE

• US 20160189068A1
• Filed: 12/10/2015
• Published: 06/30/2016
• Est. Priority Date: 12/26/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Inventors: AMANO, HIROSHI, MINAMI, KIMIO, NAKANO, TOSHIHISA, WAKABAYASHI, TOHRU, HIROSE, TAKAKO
• Granted Patent: US 10,521,749 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60W 30/0956 the prediction being responsive to traffic or environmental parameters
• CPC Class Codes: G06F 16/2358 Change logging, detection, and notification replication G06F16/27
• CPC Class Codes: G06F 16/24578 using ranking
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: G08G 1/0112 from the vehicle, e.g. floating car data [FCD]
• CPC Class Codes: G08G 1/0129 for creating historical data or processing based on historical data
• CPC Class Codes: G08G 1/0133 for classifying traffic situation
• CPC Class Codes: G08G 1/0141 for traffic information dissemination
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/164 Centralised systems, e.g. external to vehicles

Abstract

A risk information processing method used in a risk information processing system that manages a degree of risk at a spot where a moving object is located includes: storing, as risk information in a storage, a degree of risk for a combination of spot and situation; and estimating first risk information for a first combination for which a degree of risk has not been input by using three or more pieces of risk information including degrees of risk for a second combination whose spot is the same as the first combination and whose situation is different from the first combination, for a third combination whose situation is the same as the first combination and whose spot is different from the first combination, and for a fourth combination whose situation is the same as the second combination and whose spot is the same as the third combination.

Claims

1. A risk information processing method used in a risk information processing system that manages a degree of risk at a spot at which a moving object is located, comprising:

storing, as risk information in a storage of the risk information processing system, a degree of risk that is input for a combination of a spot of occurrence of a risk event and a situation of occurrence of the risk event at the spot; and

estimating first risk information which is a degree of risk for a first combination for which a degree of risk has not been input by calculation using three or more pieces of risk information stored in the storage,

the three or more pieces of risk information including second risk information which is a degree of risk for a second combination whose spot is the same as the first combination and whose situation is different from the first combination, third risk information which is a degree of risk for a third combination whose situation is the same as the first combination and whose spot is different from the first combination, and fourth risk information which is a degree of risk for a fourth combination whose situation is the same as the second combination and whose spot is the same as the third combination.

2. The risk information processing method according to claim 1, wherein

in the estimating, correlation of degrees of risk between spots is calculated by using the second risk information and the fourth risk information, and the degree of risk for the first combination is calculated from the degree of risk of the third risk information by using the calculated correlation of degrees of risk between the spots.

3. The risk information processing method according to claim 1, wherein

in the estimating, correlation of degrees of risk between situations is calculated by using the third risk information and the fourth risk information, and the degree of risk for the first combination is calculated from the degree of risk of the second risk information by using the calculated correlation of degrees of risk between the situations.

4. The risk information processing method according to claim 1, wherein

the first risk information obtained in the estimating is stored in the storage.

5. The risk information processing method according to claim 1, further comprising:

storing, in the storage as individual risk information for an individual driver and as overall risk information for all drivers, a degree of risk for the driver that is input for a combination of a spot of occurrence of a risk event and a situation of occurrence of the risk event at the spot;

calculating correlation of degrees of risk between the individual risk information and the overall risk information; and

calculating a degree of risk of the individual risk information from the degree of risk of the overall risk information by using the calculated correlation of degrees of risk between the individual risk information and the overall risk information.

6. The risk information processing method according to claim 2, further comprising:

storing, in the storage, frequency information in which frequencies of a traffic event and spots are associated with each other;

determining an order of processing of the spots by using the frequency information; and

determining the first risk information to be processed in accordance with the order of processing in the estimating.

7. The risk information processing method according to claim 5, further comprising:

storing, in the storage, frequency information in which frequencies of driving of drivers and the driver are associated with each other;

determining an order of processing of the drivers by using the frequency information; and

determining the individual risk information to be processed in accordance with the order of processing in the calculating the degree of risk of the individual risk information.

8. The risk information processing method according to claim 1, further comprising:

receiving positional information indicative of a current position and sensor data indicative of a current situation from the moving object;

acquiring a degree of risk for a combination of a spot indicated by the received positional information and a situation indicated by the sensor data from the storage; and

transmitting information based on the acquired degree of risk to the moving object.

9. The risk information processing method according to claim 8, further comprising:

in a case where the acquired degree of risk exceeds a threshold value that is held in advance, determining that warning is presented and transmitting the information based on the acquired degree of risk to the moving object; and

in a case where the acquired degree of risk is equal to or lower than the threshold value, determining that the warning is not presented and transmitting no information based on the acquired degree of risk to the moving object.

10. The risk information processing method according to claim 1, wherein

any of the storing the input degree of risk in the storage and the estimating the first risk information is performed by a processor provided in the risk information processing system.

11. A server device that manages a degree of risk at a spot at which a moving object is located, comprising:

a storage in which risk information indicative of a degree of risk for each combination of a spot and a situation is stored;

a receiver that receives a degree of risk that is input for a combination of a spot of occurrence of a risk event and a situation of occurrence of the risk event at the spot; and

a controller that stores the degree of risk received by the receiver in the storage as the risk information,

the controller estimating first risk information which is a degree of risk for a first combination for which a degree of risk has not been input by calculation using three or more pieces of risk information stored in the storage;

the three or more pieces of risk information including second risk information which is a degree of risk for a second combination whose spot is the same as the first combination and whose situation is different from the first combination, third risk information which is a degree of risk for a third combination whose situation is the same as the first combination and whose spot is different from the first combination, and fourth risk information which is a degree of risk for a fourth combination whose situation is the same as the second combination and whose spot is the same as the third combination.