Full Text:   <3341>

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CLC number: TP206

On-line Access: 2018-07-02

Received: 2016-10-24

Revision Accepted: 2017-01-27

Crosschecked: 2018-05-10

Cited: 0

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Citations:  Bibtex RefMan EndNote GB/T7714


Shu-ting Chen


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Frontiers of Information Technology & Electronic Engineering  2018 Vol.19 No.5 P.604-625


An embedded lightweight GUI component library and ergonomics optimization method for industry process monitoring

Author(s):  Da-peng Tan, Shu-ting Chen, Guan-jun Bao, Li-bin Zhang

Affiliation(s):  College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China; more

Corresponding email(s):   shutinren@163.com

Key Words:  Embedded lightweight graphic user interface (GUI), Quasar technology embedded (Qt/E), Industry process monitoring, Multi-thread, Ergonomics performance

Da-peng Tan, Shu-ting Chen, Guan-jun Bao, Li-bin Zhang. An embedded lightweight GUI component library and ergonomics optimization method for industry process monitoring[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(5): 604-625.

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A1 - Da-peng Tan
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DOI - 10.1631/FITEE.1601660

Developing an efficient and robust lightweight graphic user interface (GUI) for industry process monitoring is always a challenging task. Current implementation methods for embedded GUI are with the matters of real-time processing and ergonomics performance. To address the issue, an embedded lightweight GUI component library design method based on quasar technology embedded (Qt/E) is proposed. First, an entity-relationship (E-R) model for the GUI library is developed to define the functional framework and data coupling relations. Second, a cross-compilation environment is constructed, and the Qt/E shared library files are tailored to satisfy the requirements of embedded target systems. Third, by using the signal-slot communication interfaces, a message mapping mechanism that does not require a call-back pointer is developed, and the context switching performance is improved. According to the multi-thread method, the parallel task processing capabilities for data collection, calculation, and display are enhanced, and the real-time performance and robustness are guaranteed. Finally, the human-computer interaction process is optimized by a scrolling page method, and the ergonomics performance is verified by the industrial psychology methods. Two numerical cases and five industrial experiments show that the proposed method can increase real-time read-write correction ratios by more than 26% and 29%, compared with Windows-CE-GUI and Android-GUI, respectively. The component library can be tailored to 900 KB and supports 12 hardware platforms. The average session switch time can be controlled within 0.6 s and six key indexes for ergonomics are verified by different industrial applications.


摘要:面向工业过程监控的嵌入式轻型图形用户界面(GUI)构件库开发具有较高难度,当前方法在实时任务处理与人机功效等方面存在不足。针对上述问题,提出一种基于嵌入式Qt技术(Qt/E)的轻型GUI构件库设计方法。根据工业过程监控需求,建立构件库实体-关系(E-R)模型,定义系统功能构架与模块数据耦合关系。考虑嵌入式目标系统差异,搭建交叉编译环境以实现Qt/E共享库文件的按需裁剪。基于信号-槽通信接口,提出一种无需回调指针的消息映射方法,优化系统上下文切换性能。结合多线程控制技术,面向数据采集、计算与显示的并行任务处理能力得到强化,从而提高系统实时性与鲁棒性。通过滚动页面方法优化人机交互过程,并利用工业心理学方法验证系统人机功效性能。数值实例模拟与工业现场实验结果表明,与Windows-CE-GUI和Android-GUI相比:实时读写正确率分别提高26%与29%;构件库最小可裁减至900 kB,并可支持12种嵌入式硬件平台;系统平均会话切换时间可控制在0.6 s以内,关键人机功效指标可满足不同工业应用需求。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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