| 嵌入式系统消息序列化的地图显示方法 |
| |
| 引用本文： | 李光茂,岳春生,王万请. 嵌入式系统消息序列化的地图显示方法[J]. 测绘科学, 2012, 37(1): 198-200,197 |
| |
| 作者姓名： | 李光茂 岳春生 王万请 |
| |
| 作者单位： | 1.信息工程大学,郑州,450002;2.信息工程大学,郑州,450002;3.信息工程大学,郑州,450002 |
| |
| 摘 要： | 在硬件资源有限的嵌入式平台上实现地图快速显示是个技术难题.针对连续地图操作时地图显示延迟的问题,本文研究了多任务模型下的消息驱动机制,运用将一个显示任务分解为一系列子任务的思想,提出了一种消息序列化的地图显示方法.实验结果表明,该方法能有效提高连续地图操作情况下的地图显示速度.
|
| 关 键 词： | 消息序列化 事件模型 多任务 消息驱动 地图显示 |
Map display method based on sequenced messages in embedded system |
| |
| LI Guang-mao,YUE Chun-sheng,WANG Wan-qing. Map display method based on sequenced messages in embedded system[J]. Science of Surveying and Mapping, 2012, 37(1): 198-200,197 |
| |
| Authors: | LI Guang-mao YUE Chun-sheng WANG Wan-qing |
| |
| Affiliation: | (Information Engineering University,Zhengzhou 450002,China) |
| |
| Abstract: | Recently,fast map display on embedded platforms with limited hardware resources has become an academic conundrum.This paper aimed at coping with the display delay of successive map display operating.Firstly,the message-drive in multitask model was studied,and then a map display method was proposed,which divided one map display task into a sequence of child-tasks.Experimental results showed that this method could efficiently speed up map display in the case of successive operating. |
| |
| Keywords: | sequenced messages event model multitask message-drive map display |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
