Please wait a minute...
工程设计学报
Chinese Journal of Engineering Design  2018, Vol. 25 Issue (3): 360-366    DOI: 10.3785/j.issn.1006-754X.2018.03.016
    
Design and implementation of bidirectional weighbridge unattended weighing system based on PLC
ZHANG Zhi-shun, NIU Yu-gang
Key Lab of Advanced Control and Optimization for Chemical Process, Ministry of Education, East China University of Science & Technology, Shanghai 200237, China
Download: HTML     PDF(1614KB)
Export: BibTeX | EndNote (RIS)      

Abstract  

In order to improve accuracy and operational efficiency of petrochemical product weighing in the process of ration loading and unloading, optimize human resources and avoid all kinds of disadvantages of hand gauge, the design and implementation method of the bidirectional weighbridge unattended weighing system is proposed. The system was mainly comprised of weighbridges, infrared gratings, IC cards, cameras, barrier gates and so on. Based on the characteristics of the bidirectional weighbridge unattended system, the automatic control process was described in detail. The Micro850 controller was used to collect I/O field data, IC cards' numbers and the weighing data. The method of twice filtration was adopted to deal with the problem of data instability and large measurement errors in weighing process. Meanwhile, the weighbridge unattended system management interface was developed to strengthen supervision on site operation. The verification result indicated that the filtering algorithm could control weighing errors within 3‰, which met the requirements of industrial metrology. The system was put into practice. As an indispensable subunit, the weighbridge unattended system can realize the design goal of decentralized weight and centralized management in the process of building the storage and transportation system's automation, informatization and management control integration, which is of great application value.

Key words： unattended      Micro850      automatic weight      data filtering      monitoring management     
Received: 27 November 2017      Published: 28 June 2018
CLC:  TP271  
  TP29  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
ZHANG Zhi-shun
NIU Yu-gang
Cite this article:

ZHANG Zhi-shun, NIU Yu-gang. Design and implementation of bidirectional weighbridge unattended weighing system based on PLC. Chinese Journal of Engineering Design, 2018, 25(3): 360-366.

URL:

https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2018.03.016     OR     https://www.zjujournals.com/gcsjxb/Y2018/V25/I3/360


基于PLC的双向地衡无人值守称重系统的设计与实现

为提高石油化工品在定量装卸过程中称重计量的精准度、作业效率和优化人力资源，避免人工计量的各种弊端，提出了双向地衡无人值守称重系统的设计和实现方法。该系统主要由地衡、红外光栅、IC读卡器、摄像头及道闸等设备组成，根据双向地衡称重系统的特点，详细阐述了其自动控制流程，利用Micro850控制器对现场I/O数据、IC卡号和称重数据进行采集，采用对质量信号进行2次滤波的方法解决称量过程中数据不稳定、计量误差大的问题。设计开发了地衡无人值守称重系统管理界面，加强了对现场操作的监管。通过验证可知，该滤波算法能将计量误差控制在3‰以内，符合工业计量要求。该系统已投入实际应用，在构建储运系统自动化、信息化和管控一体化的过程中，地衡无人值守称重系统作为其不可或缺的子环节，实现了分散过磅、集中管理的设计目标，具有极大的应用价值。


关键词： 无人值守,  Micro850,  自动过磅,  数据滤波,  监控管理 

[1] 袁刚.地磅无人值守系统[J].仪器仪表用户,2016,23(12):50-52. YUAN Gang. Unattended weighbridge system[J]. Electronic Instrumentation Customer, 2016, 23(12):50-52.
[2] 孙志婷,刘婷婷,李顺云.防作弊地磅称重系统的设计与实现[J].煤炭技术,2011,30(7):189-191. SUN Zhi-ting, LIU Ting-ting, LI Shun-yun. Design and implementation of anti-cheating loadometer weighing system[J]. Coal Technology, 2011, 30(7):189-191.
[3] 李建奇,何鹏,王文虎,等.一种新型粮食企业智能称量系统的设计[J].自动化与仪表,2012,27(5):50-53. LI Jian-qi, HE Peng, WANG Wen-hu, et al. Design of grain weighing system for vehicle weight scale[J]. Automation and Instrumentation, 2012, 27(5):50-53.
[4] 徐生林,张勋芳,邵根富.无人值守称重系统的设计与实现[J].计算机应用与软件,2010,27(3):188-190. XU Sheng-lin, ZHANG Xun-fang, SHAO Gen-fu. Design and implementation of unattended weighing system[J]. Computer Applications and Software, 2010, 27(3):188-190.
[5] 王昭.汽车衡称重管理系统的研究与应用[D].北京:华北电力大学控制与计算机工程学院,2016:1-2. WANG Zhao. Research and application of vehicle weighing management system[D]. Beijing:North China Electric Power University, School of Control and Computer Engineering, 2016:1-2.
[6] 朱炜淋,杨青锋.基于称重传感器在电子汽车衡中应用的探究[J].衡器,2011,40(4):15-18. ZHU Wei-lin, YANG Qing-feng. Research on the application of the weighing sensor in the automobile weigh[J]. Weighing Apparatus, 2011, 40(4):15-18.
[7] 丁园园.利用研华ADAM-4000系列模块搭建监控系统[J].科技风,2011(8):41-41. DING Yuan-yuan. Using ADAM-4000 series modules to build a monitoring system[J]. Technology Wind, 2011(8):41-41.
[8] 钟斌,黎和昌,敬新益,等.利用Visual C++和ADAM模块开发温度采集与控制系统[J].南昌工程学院学报,2005,24(3):46-49. ZHONG Bin, LI He-chang, JING Xin-yi, et al. Using visual C++ and ADAM modules to develop tempera-ture collection and control system[J]. Journal of Nanchang Institute of Technology, 2005, 24(3):46-49.
[9] 张峰,李志刚.利用VB6.0与ADAM模块实现现场数据的采集[J].自动化与信息工程,2001,22(2):36-38. ZHANG Feng, LI Zhi-gang. The collection of field data collected by using VB6.0 and ADAM modules[J]. Automation & Information Engineering, 2001, 22(2):36-38.
[10] 李国勇,王燕霞,熊黎丽,等.基于RFID的多磅自动称重系统设计[J].自动化与仪器仪表,2016(9):16-18. LI Guo-yong, WANG Yan-xia, XIONG Li-li, et al. Design of multi-loadometer automatic weighing system based on RFID[J]. Automation and Instrumentation, 2016(9):16-18.
[11] 张乐,鲁仁全,徐生林.车辆衡自动称重系统的设计与实现[J].浙江大学学报(工学版),2010,44(7):1414-1417. ZHANG Le, LU Ren-quan, XU Sheng-lin. Design and implementation of automatic weighing system for vehicle weightscale[J]. Journal of Zhejiang University (Engineering Science), 2010, 44(7):1414-1417.
[12] 奚向民,范舜年.污水处理厂地磅房自动称重系统[J].电气自动化,2012,34(4):68-69. XI Xiang-min, FAN Shun-nian. Automatic weighbridge system in the wastewater treatment plant[J]. Electrical Automation, 2012, 34(4):68-69.
[13] APPITA Group. Micro PLCs from rockwell automation[J]. APPITA Journal, 2013, 66(2):104-104.
[14] 文常保,高丽红,方吉善,等.基于改进型限幅平均滤波法的高精度称重系统研究[J].传感技术学报,2014,27(5):649-653. WEN Chang-bao, GAO Li-hong, FANG Ji-shan, et al. The high-precision weighing system based on the improved amplitude-limiting and average filtering algorithm[J]. Chinese Journal of Sensors and Actuators, 2014, 27(5):649-653.
[15] 杨明,狄卫国,段淑凤.数字滤波技术及其在电池检测系统中的应用[J].现代电子技术,2003(5):98-99. YANG Ming, DI Wei-guo, DUAN Shu-feng. Digital filter algorithms used in detected system for battery[J]. Modern Electronics Technique, 2003(5):98-99.
[16] 贺益盛.基于主数据的信息系统集成与应用研究[D].广州:华南理工大学软件学院,2014:21-23. HE Yi-sheng. Research of information integration and application based on master data[D]. Guangzhou:South China University of Technology, School of Software Engineering, 2014:21-23.
[17] 谢剑猛,许飞.基于ⅡS的Web网站的安全研究与设计[J].华东交通大学学报,2003,20(5):62-65. XIE Jian-meng, XU Fei. Security research and design of Web sites based on ⅡS[J]. Journal of East China Jiaotong University, 2003, 20(5):62-65.
[18] 孙磊,林峰.Asp.Net在远程控制中的应用[J].工程设计学报,2005,12(1):44-47. SUN Lei, LIN Feng. Use of Asp.Net in remote control[J]. Chinese Journal of Engineering Design, 2005, 12(1):44-47.
[19] 邬蓉蓉,滕召胜,谭旗,等.基于C#.NET的智能化汽车衡称重管理系统[J].仪表技术与传感器,2010(7):48-50. WU Rong-rong, TENG Zhao-sheng, TAN Qi, et al. Management system of intelligent truck scale based on C#.NET[J]. Instrument Technique and Sensor, 2010(7):48-50.
[1] ZHENG Hua-lin, FENG Yi-fu, PAN Sheng-hu. Design of weak magnetic signal acquisition system for metal pipeline based on STM32[J]. Chinese Journal of Engineering Design, 2021, 28(5): 646-653.