基于嵌入式系统PDA的地下管线普查与测量

为提高建立数字化地下管网的工作效率,实现测量成图一体化、图库互动的作业模式,探讨了在应用嵌入式系统(Personal Digital Assistant)进行地下管线调查与测量数据采集过程中 ,对其中的Pocket-Access数据库所存储的管线调查属性数据和测量数据进行实时数据访问的问题,给出了数据访问的基本步骤及关键技术,提出了以eMbedded Visual C 为开发工具, 以ADOCE(ActiveX Data Objects for CE)数据访问技术实现数据访问的方法,并应用于某公司开发的地下管线普查与测量系统.生产实践证明,该方法能够快速、高效地进行数据操作,与传统作业手段相比,使作业进度可提高2～4倍.

Exploration and surveying of subterranean pipeline based on PDA embedded system

To improve the efficiency of the digital subterranean pipeline network,and to achieve integrating surveying with mapping and mutual dynamic changing between graphics and database,the question that the attribute data and surveying data of pipeline exploration stored in Pocket-Access database in PDA(Personal Digital Assistant) are accessed in realtime when data of subterranean pipeline exploration and surveying is recorded is discussed,and the basic steps and key technique of data accessing are given. The method of data accessing with eMbedded Visual C++and ADOCE(ActiveX Data Objects for CE) is introduced,which is applied to subterranean pipeline exploration and surveying system developed in Beijing Jiuzhou Corporation. It is practically proved that the method,compared with the conventional working mode,can access and operate data with high speed ,and accelerate the pace of working by 2~4 times.