Device and method for bluetooth pairing of mobile phone and vehicle-mounted display terminal in screen projection state

Abstract

The invention provides a device for performing automatic Bluetooth pairing and connection on a mobile phone and a vehicle-mounted display terminal in a screen projection state. The device comprises ascreen projection service module and a mobile phone Bluetooth module in the mobile phone, and a screen projection receiving module and a vehicle-mounted display terminal Bluetooth module in the vehicle-mounted display terminal, wherein a communication channel is arranged between the screen projection service module and the screen projection receiving module, a Bluetooth pairing information input end of the screen projection receiving module is connected with a Bluetooth pairing information output end of the vehicle-mounted display terminal Bluetooth module, the Bluetooth pairing information output end of the screen projection receiving module is connected with the Bluetooth pairing information input end of the mobile phone Bluetooth module, the mobile phone Bluetooth module is in Bluetoothcommunication connection with the vehicle-mounted display terminal Bluetooth module, the device can automatically perform the fast pairing between the mobile phone Bluetooth and the vehicle-mounted display terminal Bluetooth during the screen projection of the mobile phone and the vehicle-mounted display terminal, thereby facilitating the transmission of sound signals between the mobile phone andthe vehicle-mounted display terminal.

Description

technical field [0001] The present invention relates to the technical field of vehicle-mounted interconnection, and specifically refers to a device and a method for automatically pairing and connecting a mobile phone and a vehicle-mounted display terminal in a screen projection connection state through Bluetooth. [0002] technical background [0003] With the continuous development of mobile Internet and Internet of Vehicles technology, the applications in the vehicle environment are constantly enriched. At the same time, smart phones have gradually become an indispensable part of people's daily life. People can realize a variety of functions through mobile phones in the car, such as answering and calling, checking current real-time road conditions, navigating to a certain place, checking the weather, listening to music, listening to books, and performing real-time intercoms with friends. At the same time, the vehicle-mounted display terminal also supports the function of pr...

AI Technical Summary

Problems solved by technology

However, the pairing connection between the Bluetooth of the mobile phone and the Bluetooth of the vehicle display terminal usually requires the following steps: 1. Scan to find the device; 2. Select the device to be connected for pairing; 3. Enter the PIN code to complete the pairing; 4. Establish a connection; This process is not only complicated and cumbersome, but also if it is operated during driving, it will cause certain dangers.

In addition, the conventional mobile phone and the vehicle-mounted display terminal (the vehicle-mounted display terminal has two sound channels, one sound channel is used to play the radio, and the other sound channel is a Bluetooth sound channel, which is used to carry out Bluetooth connection with the mobile phone and play the sound transmitted by the mobile phone Bluetooth. ) when performing screen projection connection, the sound signal of the mobile phone cannot be directly transmitted. When the voice signal of the mobile phone needs to be transmitted, it needs to broadcast to the Bluetooth channel control terminal of the vehicle display terminal through the projection receiving module inside the vehicle display terminal. Prompt the driver to perform manual Bluetooth pairing, and then the on-board display terminal can play the sound information of the mobile phone after the pairing is successful. This form of process is very cumbersome and has obvious hidden dangers to driving safety.

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