Radio design and implementation in IVI system

background

Provide radio function of radio station .

framework       

UI： Show my station , Nearby stations , FM interface .  use MVVM Design pattern development .

MediaConnection： As a bridge , be responsible for UI Communication between layer and player layer .

RadioMediaPlayer： encapsulation Radio player API, Located in a Service process ：

Network： Load nearby network stations .

Data Storage： Save radio broadcast information , And cache station list .

Hardware： A group of interfaces independent of the vehicle and locomotive platform are defined （HuRadio（ The ability to adjust the radio ）, And for different platforms , Provides different implementations .

Implementation of hardware abstraction layer

xxxCanbus

Directly the same as Framework Layer of RadioService signal communication . stay Framework layer , Customize RadioService（Stub）

Case study ：

xxx1Audio The sequence diagram of playing a radio station

xxx2Radio

Same as Canbus signal communication , from Canbus Medium CarService Dispatch Radio Interface .

xxxHuRadio Sequence diagram of internal broadcast station ：
 Note that this sequence diagram is more concerned with HuRadio Internal implementation details , Don't involve SDK and App layer 

You can see that there is a LocalBroadCast Local radio , Used to receive the underlying CarSerive Issued and Radio Status information about .