针对传统车载操作系统互不兼容、不支持第三方应用,由此导致用户的自定义程度低等问题,以具有强大兼容性、扩展性的第三方终端操作系统——安卓作为开发平台,通过Java语言编写应用程序,设计了一款基于安卓平台的车载免提软件系统。该系统通过运用Bluetooth技术,基于Bluetooth的hands free profile(HFP)和advanced audio distribution profile(A2DP)实现了车载终端对免提软件系统的功能需求。通过真机测试结果表明,该免提应用运行内存只占用300 k B左右,可以流畅运行,能够支持免提电话、数据同步、音乐播放等基本功能需求的同时,还添加了来电自动接听功能,达到了车载免提终端系统的更高要求。
Pointing at the poor compatibility and not supporting the third party application of traditional vehicle operating system which leads to low level custom function problems of users,with strong compatibility and extension of third terminal operating system-Android as the development platform,compiling application program by Java language,a software was designed for vehicle hands-free system based on Android platform.The software system realizes the function demand of vehicle terminal hands-free system through Bluetooth technology,based on Bluetooth hands free profile(HFP) and advanced audio distribution profile(A2DP).The testing results show that the operation of hands-free applications occupies only about 300 k B of memory,running smoothly,can support hands-free phone,data synchronization,music playback and other basic functions demand at the same time,also adds a call automatic answering function,meeting the higher requirements of the vehicle hands-free terminal system.