基于非操作系统车载记录仪数据管理系统的设计

Data Management Design of Vehicle Recorder Based on non-Operating System

为解决在无操作系统的环境下车载记录仪文件管理存在的问题,提出一种适合于专用性强的车载记录仪的文件管理系统,容量可达到160G且易于扩展;车载大容量记录仪主要由控制模块、存储模块、电源模块和各种采集接口组成,并通过建立索引、存储数据、获取索引、获取历史数据等流程对文件进行有效管理,该大容量车载记录仪通过温度循环试验、高温老练试验、电磁兼容试验、振动试验等,性能稳定,数据的存取速度快,存储容量大,已用于工程实践中。

To solve the problem of vehicle recorder data management under no--operating system, a vehicle recorder file management system is proposed with strong.specificity, 160G storage, and is easy to expand. The vehicle large--capacity recorder consists of control module, memory module, power module and various acquisition interfaces, and processes effective management on files by creating inde- xes, storing data and accessing real--time data, index and historical data. The large--capacity vehicle recorder has performed stably in the temperature cycle test, high temperature experienced test, electromagnetic compatibility test and vibration test, etc. The recorder has fast data access speed and large storage capacity. It has been used in engineering practice.