【作者】 杨磊；

【导师】 翟玉庆； 倪庆剑； 昌靖；

【作者基本信息】 东南大学 ， 软件工程， 2015， 硕士

【摘要】 随着汽车产业和制造业的快速发展,人们在体验驾驶乐趣的同时,也伴随着一些交通安全隐患。目前全国试点对开车打电话的行为进行违章处罚,对车主来说,“只动嘴不动手”的理念迫切需要一个有效的解决方案。因此,建立一套能快速实现语音交互的智能驾驶辅助系统是完全有必要的。本论文主要完成通讯、娱乐、系统和车应用场景下的多媒体系统适配工具的设计与实现,使适配工具充当语音助理和车载多媒体系统之间的桥梁。具体的,本论文主要完成以下工作：1.语音助理与车机平台适配工具的设计与实现。语音助理和车机平台不能直接通信,需要设计一款适配器给语音助理提供回调接口和服务接口服务。本文首先提出了适配工具的设计目的和系统结构,然后对适配工具的系统结构进行了分析,将适配工具系统结构分为：过滤层、适配层和功能层。2.设计和实现了车机平台对语音助理的上传功能和执行语音助理的请求功能。上传功能包括上传定位信息、上传SIM状态、上传常用数据,执行请求包括操作应用功能、通信功能和cmd控制功能。3.适配工具配合车机完成注册和行程数据上报功能。通过适配工具提供的接口来获取机器ID、SIM状态信息,用来帮助车机完成注册流程。行程信息上报过程中需要用到注册流程中获得的基础密钥。该基础密钥用于解密数据上报阶段名字服务返回的已加密的数据。4.设计和实现了音频焦点功能,包括通过适配工具提供的接口实现了获得、释放音频焦点功能和给语音助理发送音频协调通知功能。根据车载噪声的特点优化传统的谱减法,从而达到了提高传入语音助理AutoFly的音频质量的目的。论文最终设计并实现了声控多媒体系统适配工具,同时对适配器工具各基本功能进行了测试,达到可用性、及时性和稳定性的预期目的,并满足了企业开发的要求,有较好的工程应用价值。该工具能够起到语音助理与多媒体系统之间的连接作用,并对降低两者之间的耦合有重要意义。更多还原

【Abstract】 With the rapid development of automobile industry and manufacture, when people enjoy driving pleasure, they also were accompanied by some traffic hidden troubles. At present the national areas pilot to punish the illegal behavior of driving for the phone.For the owner, the concepts of "wordsonly not hand" urgently need an effective solution. Therefore, it is completely necessaryto establish a set ofintelligent driving assistant system which can quickly achieve voice interaction. This thesis mainly completes the design and implementation of voice control multimedia system’s adapter in the scenario of communication, entertainment, system and application.Below is the main work of this thesis:1. This design and implementation of voice control multimedia system’s adapter. In this thesis, the voice assistant can’t have direct communication with car machine platform. Therefore, it is necessary to design and achieve an adapter which can provide callback interfaces and service interfaces. At first, this thesis puts forward the design and system structure of adapter tool, and then analyses the system structure of adapter, and the adapter tool can be divided into three parts: filter layer, adapter layer, and function layer.2. This part designs and implements the function of uploading data to voice assistant and the request function of voice assistant. Upload function includes orientation information, SIM status, common used data. The request function of voice assistant includes operating application, communication and command control function.3. The adapter tool assists car machine to complete the registration and data reporting function. Interfaces provided by the adapter toolcan get the machine ID, SIM card’sstatus and other information, then help car machine complete the registration process. Trip information reporting function needs the basis of secret key in the process of registration. The basic key was used to decryptreporting stage’s data returned by name service.4.This part designs and implements the function of audio focus. In this thesis, theinterfacesprovided by adapter tool provide service of obtaining audio focus, releasing audiofocus and sending audio coordinate inform to voice assistant audio. This part optimizes the traditional spectral subtraction according to the characteristics of the vehicle noise, so as to achieve the purpose of improving the quality of audio which was imported to voice assistant (AutoFly).Finally, the adapter tool was designed and implementation. At the same time, the basic functions of adapter were tested, and the purpose of availability, timeliness and stability were desired. This tool meets the requirements of enterprise development and is valuable to engineering application. The adapter tool which was designed and achieved serves as the bridge between voiceassistant and multimedia system, and it has important significance for reducing the coupling between both sides.更多还原