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LabVIEW (laboratory virtual instrument engineering workbench) is a graphical programming and development environment, also known as "G" language. It is widely used by industry, academia and research laboratories, accepted as the standard data acquisition and instrument control software. LabVIEW not only provides and complies with all the functions of hardware and data acquisition cards communications of GPIB, VXI, RS-232 and RS-485 protocol, and built-in library functions support for TCP / IP, ActiveX and other software standards. The software for scientists and engineers is a programming language, it provides a simple, intuitive graphical programming mode, saves a lot of development time, has complete function, best embodied style of virtual instrument.
In response to these circumstances, developed a mine hoist Integrate Performance Monitoring System based on virtual instrument LabVIEW-based. Show in Figure 3. With signal conditioning and data acquisition card to receive signals from sensors, then sent the received signal to the virtual instrument software platform, enables the following features:
（1） show speed, acceleration, braking time, displacement, oil pressure, delay time and other relevant parameters in digital, and display speed, acceleration, traction, displacement and hydraulic curves.
（2）Dynamically monitor the hydraulic oil pressure and oil pump running station, based on these parameters to avoid important braking system failure.
（3）Test brake air travel time, relay delay time and other time parameters.
（4）inquiry to the measured curve and hoist parameters; print a test report.
Figure3.Diagramoftestsys；Themonitoringsystemhasch；Ⅳ.CONCLUSIONS；Inthispaper,usedvirtuald；REFERENCES；[1]Wengqishu.Theinherent；Technology2006(3):50-52.；[2]Lijangbo.StudyofTestS；Engin
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Figure 3. Diagram of test system
The monitoring system has characteristics such as compact, light weight, high precision, testing convenient and flexible, feature-rich software etc.. the system can not only display automatically test results, but also finish multiple functions, for example , data transmission, analysis, processing, storage and report printing. The system is high precision, can easily monitor the hoist operation state, to ensure the reliability of hoist operation.
Ⅳ. CONCLUSIONS
In this paper, used virtual design software to design the hoist mechanical system, PLC to design control system, applied virtual instrument software-LABVIEW to design monitor system. Therefore, the mine hoist designed has good mechanical properties and safe operation, monitoring easy.
REFERENCES
[1] Weng qishu. The inherent safety and checks of cabin[J]. navigation
Technology 2006 (3):50-52. (in Chinese)
[2] Li jangbo. Study of Test System of Composite Characteristic of Devices Based on Virtual instrument[D]. A Dissertation Submitted to Hebei University of
Engineering For the Academic Degree of Master of Engineering, 2007. (in
Chinese)
[3] Wang chengqin, Li wei , Meng baoxing et al... Random vibration testing system of
hoisting gear based on virtual instrument. Coal mine machinery, 2008(4) :118-120. (in Chinese)
[4] Chen baozhi Wu min. concept and practices of inherent safety[J]. Journal of Safety Science and Technology,2008(6):79-83. (in Chinese)
[5] Xu chenyi, Wu yongdong, Huanghe et al.. A PLC-based mine hoist control system design [J]. LC&FA, 2008(10):52-56 (in Chinese)
基于现代设计方法的矿井提升机内在安全性的研究
摘要：作为一个现代的安全设计，内在的安全性意着设备和设施能够包含防止事故发生的固有基本特征。矿山提升机是煤炭生产中最重要的设备。如何获得安全、可靠、效率高的产品，已经成为国内外研究的焦点。内在安全性在提升机的设计中主要体现在通过设计方法来提高操作提升机的安全性和可靠性。在本文中,把内在安全性理论应用到了矿井提升机的设计中,利用PRO/E、PLC、Labview等软件提出了设计方法。