Voice control method and apparatus for vehicle device based on OBD interface

Abstract

A voice control method and apparatus for a vehicle device based on an OBD interface belongs to the vehicle sound recognition and control field, and helps to solve the technical problems of the prior art that a vehicle device is low in sound recognition precision and data acquisition cannot be achieved through voice. The technical main points are that a user starting system selects modes of a voice training mode or a voice recognition mode; a user waits a voice instruction until a voice signal is acquired; a voice feature matching is carried out; a processor of a vehicle device sends a CAN data protocol corresponding to the voice instruction to a CAN bus through an OBD interface; and a vehicle ECU receives a CAN data frame. Automatic voice acquisition of vehicle data is realized, the apparatus will indicate whether voice training is carried out every time when the user starts the vehicle device, and the voice recognition accuracy is improved.

Description

technical field [0001] The invention relates to a voice control method and device, in particular to a voice control method and device for vehicle-mounted equipment based on an OBD interface. Background technique [0002] With the development of the automobile industry, there are more and more automotive electronic products, the most common of which is the vehicle-mounted equipment based on the OBD interface. This type of equipment is mostly used for vehicle status monitoring, and can collect vehicle fault codes and total mileage through the CAN bus of the OBD interface. Vehicle data such as vehicle data, driving speed, water tank temperature, and current fuel consumption can also be used for GPS positioning. However, the traditional OBD equipment is not conducive to manual operation and status display because of its installation location, so it is realized by connecting the mobile phone APP between the user and the equipment. However, the operation of the mobile APP is gener...

AI Technical Summary

Problems solved by technology

[0002] With the development of the automobile industry, there are more and more automotive electronic products, the most common of which is the vehicle-mounted equipment based on the OBD interface. This type of equipment is mostly used for vehicle status monitoring, and can collect vehicle fault codes and total mileage through the CAN bus of the OBD interface. Vehicle data such as vehicle data, driving speed, water tank temperature, and current fuel consumption can also be used for GPS positioning. However, the traditional OBD equipment is not conducive to manual operation and status display because of its installation location, so it is realized by connecting the mobile phone APP between the user and the equipment. interaction, but the operation of the mobile APP is generally cumbersome, and it is not safe to query the vehicle status through the mobile APP during driving.

Secondly, the speech recognition system in the existing vehicle equipment, due to factors such as the speaker's mood and the environment, the extraction of feature parameters is inaccurate and affects the speech recognition effect, making the recognition accuracy low and affecting the recognition results.

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