Patent ID: 11938958
Assignee: NISSAN MOTOR CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 10:
11. A voice dialogue system comprising:
a server configured to execute a dialogue with an occupant in a vehicle by communicating with the vehicle, wherein
the vehicle is equipped with at least one sensor and one or more voice devices,
the at least one sensor detects at least one of a traveling state of the vehicle, an external environmental state of the vehicle, and a state of the occupant,
the one or more voice devices recognize a voice of the occupant and output a voice to the occupant, and
the server is further configured to:
acquire a detection result of the sensor,
determine, on the basis of the detection result, a state of a load on the occupant; and
execute a dialogue with the occupant by executing a first dialogue program when the size of the load is larger than the predetermined standard, and executing a second dialogue program different from the first dialogue program when the size of the load is smaller than the predetermined standard,
wherein the first dialogue program is programmed to ask questions for which the expected occupant's answers include fewer words than with the second dialogue program,
wherein the first dialogue program uses discrete word recognition to acquire an answer to a question from the occupant, discrete word recognition recognizing one or more predetermined words in voice information of the occupant,
wherein the second dialogue program uses sentence recognition to acquire an answer to a question from the occupant, sentence recognition recognizing voice information of the occupant in a unit of a sentence.