Driving diagnosis device, driving diagnosis system and driving diagnosis method

A driving diagnosis system, comprising:

• an onboard device equipped into a certain vehicle;
• and
• a management device which communicates information with the onboard device over a network, wherein:
• the onboard device includes:
• a first processor which acquires, from the certain vehicle, vehicle information indicating at least one of behavior of the certain vehicle and an operation of the driver while a driver is driving the certain vehicle;
• and
• a first transmitter/receiver which communicates with the management device over the network;
• the management device comprises:
• a second processor;
• a second transmitter/receiver which communicates with the onboard device over the network;
• and
• a history storage device which stores first history information as for a history of the driver driving a vehicle other than the certain vehicle;
• the onboard device or the management device comprises an advice storage device which stores plural pieces of advice that include plural types of advice for a result of a diagnosis;
• the first processor or the second processor makes a judgment on driving of the driver according to the vehicle information;
• the first processor or the second processor judges a degree of influence, on the diagnosis, of a driving experience of the driver before the driver driving the certain vehicle according to at least one of the first history information and second history information as for a history of the driver driving the certain vehicle;
• the first processor or the second processor determines to present, to the driver, a piece of advice corresponding to the judged degree of influence from among the plural types of advice included in the plural pieces of advice stored in the advice storage device and associated with the result of the diagnosis;
• wherein
• the history information includes first vehicle specification information indicating a specification of the certain vehicle, second vehicle specification information indicating a specification of another vehicle other than the certain vehicle in one or more different vehicles, and ending time information indicating time at which the driver has completed driving the another vehicle other than the certain vehicle;
• the plural types of advice for the result of the diagnosis include plural types of advice that depend on a degree of positive influence, and plural types of advice that depend on a degree of negative influence;
• and
• the first processor or the second processor determines whether influence on the diagnosis is positive or negative according to a difference between the specification indicated by the first vehicle specification information and the specification indicated by the second vehicle specification information, and judges the degree of influence by monotonically decreasing the degree of influence toward zero according to a length of time lapse from the time indicated by the ending time information.

A driving diagnosis method comprising:

• making, by a computer, a diagnosis on driving by a driver according to vehicle information indicating at least one of behavior of a certain vehicle and an operation of the driver while the driver is driving the certain vehicle;
• determining, by the computer and according to history information that includes first vehicle specification information indicating a specification of the certain vehicle, second vehicle specification information indicating a specification of another vehicle other than the certain vehicle in one or more different vehicles, and ending time information indicating time at which the driver has completed driving the another vehicle other than the certain vehicle, a difference between the specification indicated by the first vehicle information and the specification indicated by the second vehicle information;
• determining, by the computer, whether influence on the diagnosis is positive or negative according to the difference between the specifications;
• judging, by the computer, the degree of influence by monotonically decreasing the degree of influence toward zero according to a length of time lapse from the time indicated by the ending time information;
• and
• determining, by the computer, to present to the driver a piece of advice corresponding to the judged degree of influence from among plural types of advice included in plural pieces of advice stored in a storage device and associated with the result of the diagnosis, wherein
• the plural types of advice for the result of the diagnosis include plural types of advice that depend on a degree of positive influence, and plural types of advice that depend on a degree of negative influence.