A vehicle multimedia system and its control method
A technology of in-vehicle multimedia and control method, applied in the field of in-vehicle multimedia system and its control, can solve the problems of user inconvenience, inability to transmit video, and driver's inability to enjoy the visual effects of Apple products well.
Active Publication Date: 2015-08-26
BYD CO LTD
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Problems solved by technology
[0003] In the prior art, there are two methods for connecting the vehicle-mounted multimedia with Apple products. One is that the vehicle-mounted multimedia communicates with Apple products through USB, and the other is that the vehicle-mounted multimedia communicates with Apple products through UART. Although the former can Through USB, the multimedia host can provide electric energy charging for Apple products, but it can only transmit audio signals, but not video, so that the driver cannot enjoy the visual effects that Apple products bring to users; It can transmit audio signals and video signals, but it cannot make the multimedia host provide power to Apple products through USB, which will also bring great inconvenience to users.
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Embodiment 1
[0037] In the first embodiment, the request signal refers to the signal requesting the Apple product 8 to answer, for example, taking the mobile phone as an example, the request signal includes "incoming call instruction" and "incoming SMS instruction" etc., so that the multimedia main body 1 Features that work in place of Apple products 8.
[0038] In the first embodiment, the control signal refers to an instruction for the multimedia main body 1 to operate the Apple product 8. For example, taking MP3 as an example, the control signal includes "previous song", "play", "pause", "stop", etc. ", "next song", "fast forward" and "rewind", etc., so that the multimedia main body 1 has realized the function of operating the Apple product 8.
[0039] As a further preferred solution of Embodiment 1, the system further includes a communication unit 9, which is connected between the multimedia body 1 and the control unit 3, and is used to amplify and de-interference the control signal se...
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A vehicle-mounted multi-media system comprises a multimedia main body, a power conversion module and an auxiliary module, wherein the auxiliary module comprises a control unit, an authentication unit, a signal processing unit and a D (Digital) / A (Analogue) conversion unit, wherein the multimedia main body is respectively used for supplying power for all units of the auxiliary module by the power conversion module and is connected with a control unit, the control unit is respectively connected with the signal processing unit and an interface of an Apple product by a UART (Universal Asynchronous Receiver / Transmitter), the signal processing unit is connected with the multimedia main body by the D / A conversion unit and a first data line, the interface of the Apple product is respectively connected with the multimedia main body by the first data line and a second data line and is connected with the signal processing unit by a USB (Universal Serial Bus), and the interface of the Apple product is connected with the Apple product, so that not only audio signals, but also the audio signals and the video signals can be simultaneously transmitted between the vehicle-mounted multimedia and the Apple product, and the multimedia main body can provide power to the Apple product for charging.
Description
technical field [0001] The invention belongs to the field of vehicle-mounted multimedia, and in particular relates to a vehicle-mounted multimedia system and a control method thereof. Background technique [0002] At present, Apple products (Apple products in this article refer to a series of products produced by Apple, i.e. "Apple Company", such as MP3, mobile phones, tablet computers, etc.) are becoming more and more popular in the market. Therefore, for vehicles, in order to improve The convenience it brings to the user and the safety of the driver are urgently needed to enable better communication between the vehicle and Apple products. [0003] In the prior art, there are two methods for connecting the vehicle-mounted multimedia with Apple products. One is that the vehicle-mounted multimedia communicates with Apple products through USB, and the other is that the vehicle-mounted multimedia communicates with Apple products through UART. Although the former can Through US...
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IPC IPC(8): G11B31/00
Inventor 张锋王征慧
Owner BYD CO LTD