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传统的磁记录技术对海量激光点云数据的存储容量小,需要多个设备同时作业,存储效率低。因此,设计一种基于FLASH闪存的激光点云数据高密度存储器,采用FPGA芯片作为存储器核心,将存储器功能模块化,分步骤解决激光点云数据存储效率低下的问题。FPGA将采集到的激光点云数据传输到缓冲模块进行暂时缓存,这些数据经过控制模块分析处理后保存至FLASH存储模块,完成激光点云数据的存储。存储器软件设计部分对海量激光点云数据进行滤波处理,过滤其中的噪声因素,并设计驱动存储器存储云数据的驱动程序代码。实验结果说明,设计的激光点云数据存储器存储效率高、存储容量大、读取速度快。
The traditional magnetic recording technology has a small storage capacity for massive laser point cloud data, requiring multiple devices to work at the same time, and has low storage efficiency. Therefore, a FLASH-based laser point cloud data high-density memory is designed. The FPGA chip is used as the memory core to modularize the memory function and solve the problem of inefficient laser point cloud data storage step by step. FPGA laser point cloud data collected will be transmitted to the buffer module for temporary buffer, the data after the control module analysis and save to the FLASH storage module, the completion of laser point cloud data storage. Memory software design part of the massive laser point cloud data filtering, filtering the noise factors and design driver memory to store cloud data driver code. Experimental results show that the design of laser point cloud data memory storage efficiency, storage capacity, read speed.