摘要
EPC模式的出现,使传统系统不再适用于高精准评估需求,针对该现象,提出了基于EPC模式的工程模式可靠度评估系统设计。根据EPC工程模式可靠度评估系统硬件结构,分别对用户界面模块、管理模块、工程数据采集模块及数据处理模块展开研究。通过输入装置和输出装置设计用户界面模块,使用户能够方便有效操作硬件,达到双向交互。在数据库系统中构建数据结构,充分描述数据间内在联系,完成管理模块研究。对工程信息进行持久化处理,并设计工程数据采集模块接口电路,使用TMS320CC6678型号数字信号处理器完成数据采集与处理模块设计。分析可靠度、工程失败率、平均失效时间间隔及平均中断施工修复时间技术指标,在4种指标支持下,设计具体评估流程。通过调用MathScript节点进行实验验证分析,由实验结果可知,该系统施工成本、施工周期与预期成本和周期一致,评估结果精准度最高可达到97%,具有良好评估效果。
The emergence of EPC mode makes traditional systems no longer suitable for high⁃accuracy assessment requirements.In response to this phenomenon,the design of an engineering mode reliability assessment system based on the EPC mode is proposed.According to the hardware structure of the reliability evaluation system based on the EPC engineering mode,the user interface module,management module,engineering data acquisition module,and data processing module are studied separately.The user interface module is designed through the input device and output device,so that the user can conveniently and effectively operate the hardware to achieve two⁃way interaction.Construct the data structure in the database system,fully describe the internal relationship between the data,and complete the management module research.Persist the engineering information,and design the interface circuit of the engineering data acquisition module.Use TMS320CC6678 digital signal processor to complete the data acquisition and processing module design.Analyze technical indicators of reliability,engineering failure rate,average failure time interval and average interrupted construction repair time,and design specific evaluation processes with the support of four indicators.By calling the MathScript node for experimental verification analysis,it can be known from the experimental results that the system's construction cost and construction period are consistent with the expected cost and period.The accuracy of the evaluation result can reach 97%,which has a good evaluation effect.
作者
冯建明
FENG Jianming(Infrastructure Management Office,University of Science and Technology Beijing,Beijing 100083,China)
出处
《电子设计工程》
2020年第23期9-13,共5页
Electronic Design Engineering
