Speech control method, multimedia system, vehicle, and storage medium

Patent metadata

Field	Value
Publication number	US-2025046308-A1
Application number	US-202418917879-A
Country	US
Kind code	A1
Filing date	Oct 16, 2024
Priority date	Jun 30, 2022
Publication date	Feb 6, 2025
Grant date	—

Abstract

A speech control method includes: receiving a target voice instruction; performing semantic parsing on the target voice instruction, and acquiring a semantic parsing result; and in response to that the semantic parsing result matches a keyword, responding to the target voice instruction by using an application corresponding to the keyword; or in response to that the semantic parsing result does not match a keyword, determining a target service type based on the semantic parsing result, and acquiring an application list corresponding to the target service type; determining a recommended application from the application list by using a first recommendation policy; and responding to the target voice instruction by using the recommended application.

First claim

What is claimed is:

1 . A voice control method, comprising:
receiving, by a processor of a voice control system, a target voice instruction; performing, by the processor, semantic parsing on the target voice instruction, and acquiring a semantic parsing result; and in response to that the semantic parsing result matches a keyword, responding, by the processor, to the target voice instruction by using an application corresponding to the keyword; or in response to that the semantic parsing result does not match a keyword, determining, by the processor, a target service type based on the semantic parsing result, and acquiring, by the processor, an application list corresponding to the target service type; determining, by the processor, a recommended application from the application list by using a first recommendation policy; and responding, by the processor, to the target voice instruction by using the recommended application.

2 . The voice control method according to claim 1 , wherein the determining, by the processor, a recommended application from the application list by using a first recommendation policy comprises:
in response to that the application list comprises a foreground application, determining the foreground application as the recommended application; in response to that the application list does not comprise a foreground application and the application list comprises a background application, determining the background application as the recommended application; in response to that the application list does not comprise a foreground application and a background application and the application list comprises a recently used application, determining the recommended application from the application list by using a second recommendation policy; and in response to that the application list does not comprise a foreground application, a background application, and a recently used application, determining a preset application as the recommended application, wherein the recently used application comprises an application used in a period before a current moment.

3 . The voice control method according to claim 2 , wherein the determining the recommended application from the application list by using a second recommendation policy comprises:
determining a target content type based on the semantic parsing result, and determining whether the recently used application comprises content corresponding to the target content type; and in response to that the recently used application comprises the content corresponding to the target content type, determining the recently used application as the recommended application; or in response to that the recently used application does not comprise the content corresponding to the target content type, determining whether a candidate application of the content corresponding to the target content type exists; and determining the candidate application as the recommended application in response to that the candidate application comprising the content corresponding to the target content type exists, or determining the preset application as the recommended application in response to that the candidate application comprising the content corresponding to the target content type does not exist.

4 . The voice control method according to claim 3 , wherein the responding to the target voice instruction by using the recommended application comprises:
determining the target content type based on the semantic parsing result, and determining whether the recommended application comprises the content corresponding to the target content type; and in response to that the recommended application comprises the content corresponding to the target content type, responding to the target voice instruction by using the recommended application; or in response to that the recommended application does not comprise the content corresponding to the target content type, obtaining a candidate application comprising the target content type, determining the candidate application as the recommended application, and responding to the target voice instruction by using the recommended application.

5 . The voice control method according to claim 4 , wherein the obtaining a candidate application comprising the target content type, and determining the candidate application as the recommended application comprises:
determining a plurality of candidate applications, and acquiring an advantageous content type of each of the candidate applications; and selecting, from the candidate applications, a first application having an advantageous content type that is the target content type as the recommended application.

6 . The voice control method according to claim 3 , wherein the semantic parsing result comprises the target content type; and
the responding, by the processor, to the target voice instruction by using the recommended application comprises: acquiring an advantageous content type corresponding to the recommended application, and matching the advantageous content type corresponding to the recommended application with the target content type; and in response to that the advantageous content type corresponding to the recommended application matches the target content type, responding to the target voice instruction by using the recommended application; or in response to that the advantageous content type corresponding to the recommended application does not match the target content type, acquiring advantageous content recommendation information, responding to the target voice instruction by using the recommended application, and prompting the advantageous content recommendation information.

7 . The voice control method according to claim 6 , wherein the acquiring advantageous content recommendation information comprises:
determining a plurality of candidate applications other than the recommended application in the application list as second applications, and acquiring an advantageous content type corresponding to each of the second applications; and acquiring the advantageous content recommendation information based on the target content type and the advantageous content type corresponding to each of the second applications.

8 . The voice control method according to claim 7 , wherein the acquiring the advantageous content recommendation information based on the target content type and the advantageous content type corresponding to each of the second applications comprises:
performing similarity calculation on the target content type and the advantageous content type corresponding to each of the second applications, and acquiring a content type similarity corresponding to each of the second applications; determining, from the second applications, a second application with a highest content type similarity as a target application; and acquiring the advantageous content recommendation information based on the target application.

9 . The voice control method according to claim 6 , wherein the application list comprises at least one candidate application, and each of the at least one candidate application comprises at least one current content type; and
before the responding to the target voice instruction by using the recommended application, the voice control method further comprises: acquiring current traffic and a current user rating that correspond to each of the at least one current content type in the at least one candidate application; acquiring, based on the current traffic and the current user rating that correspond to each of the at least one current content type, an overall rating corresponding to the at least one current content type; and determining an advantageous content type of the

Assignees

• Byd Co Ltd

Inventors

• Yan Hang
• Yang Dongsheng
• Zhang Biying
• Liu Ke

Classifications

• G06F3/167

  Audio in a user interface, e.g. using voice commands for navigating, audio feedback · CPC title

• G10L2015/223

  Execution procedure of a spoken command · CPC title

• G10L15/18

  using natural language modelling · CPC title

• G10L15/26

  Speech to text systems (G10L15/08 takes precedence) · CPC title

• G10L15/1822 Primary

  Parsing for meaning understanding · CPC title