Intelligent vehicle-mounted network connection terminal, audio information sending method, and noise reduction method

Abstract

The present invention provides an intelligent vehicle-mounted network connection terminal, an audio information sending method, and a noise reduction method, including: a control module, an audio processing module, and an FM transmitting module; wherein, the control module is used to send digital audio information to be played to the audio processing module, and send a state control signal to the FM transmitter module according to the working status information of the audio processing module; the audio processing module is used to convert the received digital audio information into analog audio information, and send the analog audio information to the FM transmitter module , and feed back the working status information of the audio processing module to the control module; the FM transmitting module is used to modulate the analog audio information, transmit the modulated signal through the corresponding frequency point, and determine the working status according to the status control signal sent by the control module . In the present invention, when there is no audio information to be transmitted, the FM transmission module is set to a MUTE state, thereby effectively reducing the influence of background noise on the user's hearing experience.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an intelligent vehicle-mounted network connection terminal, an audio information sending method, and a noise reduction method. Background technique [0002] A large number of existing cars in use usually do not have multimedia terminals. When users want to enjoy more entertainment, they need to install smart vehicle-mounted networking terminals for these cars. [0003] These cars are generally equipped with audio playback equipment such as radios and speakers, and the original speakers of the car are generally installed with the spatial layout of the car in mind, so the audio playback effect of the original speakers is better. If the smart vehicle-mounted network connection terminal installed on the car (referred to as the rear-installed smart vehicle network connection terminal) can play audio through the original speaker of the car, it will help to improve the au...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an intelligent vehicle-mounted network connection terminal, a method for sending audio information, and a noise reduction method, which are used to solve the problem that the background noise existing in the prior art when the intelligent vehicle-mounted network connection terminal transmits a FM signal has a greater impact on the user's auditory experience Defects, to achieve the purpose of reducing the background noise and improving the user's listening experience

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