苏ICP备112451047180号-6
基于Labview的虚拟计算机设计
摘要：本次毕业课程设计是基于Labview的虚拟仪器系统来设计简单的计算器，通过开发Labview的虚拟仪器系统和结合实践原理可以开发出一种虚拟计算器来模拟真实的计算器和一些简单计算器具有的基本操作。大概追溯在1970年代，那是虚拟仪器的起源。虚拟仪器和普通传统仪器不同在于，虚拟意指突出软件在仪器中起到的作用，另一方面也体现了虚拟仪器实现的各种功能与传统仪器通过主要硬件实现的功能不同的最大区别。虚拟仪器的结构形式具有多样性又能广泛的适用于各个领域，所以在定义虚拟仪器的概念这方面没有统一性。美国国家仪器公司对虚拟仪器的看法是，虚拟仪器这个测控系统是由计算机本身的硬件资源、模块化的仪器硬件和用于数据分析、过程通信及图形用户界面的这三方面软件组成的，是一种由计算机操纵的模块化仪器系统。随着虚拟仪器的技术发展，工程师们可以通过使用虚拟仪器具有的软件开发的高效方便性，完美的解决设计的方案更好的满足了多变的需求。计算器的设计采用的是虚拟仪器技术，通过计算器可以操作四个简单的算术完成，可以是平方、三角函数和倒数操作完成，该计算器可以清除和关闭计算器的操作，当一个数字输入数据不小心被输入错误的话BackSpace键可以用来清除值和一些基本操作。
虚拟计算器编程的主体思想就是要完整的表达出一个运算过程：首先输入第一个数据，存储并显示；再是对运算类型进行输入并存储；然后输入第二个数据，存储并显示；最后按等于键得出结果或者是按其他运算符号继续进行连续的运算。
关键字：Labview ；科学计算器； 虚拟仪器； 四则运算
Based on Labview virtual calculator
Abstract:The course design is based on Labview virtual instrument system to design a simple calculator, through the development of Labview virtual instrument systems and principles with practice you can develop a virtual calculator to simulate a real calculator and some simple calculators have basic operation. Probably dating back in the 1970s, it was the origin of the virtual instrument. Virtual instruments and common difference is that the traditional instruments, virtual instrument software is meant to highlight the role, it also reflects the various functions and traditional instruments by major hardware functions implemented in different virtual instruments biggest difference. Formal structure of virtual instrument diversity but also widely applied to various fields, so the definition of the concept of virtual instrument in this regard is no unity. National Instruments is the view of the virtual instrument, virtual instrumentation and control system that is composed of computer hardware resource itself, modular instrument hardware and for data analysis, these three aspects of software process communication and graphical user interface consisting of a manipulated by a computer modular instrumentation systems. With the development of virtual instrument technology, engineers can use virtual instrument software development have efficient ease, the perfect solution programs designed to better meet the changing needs. Calculator design uses a virtual instrument technology, the calculator can be operated by four simple arithmetic is completed, can be square, trigonometric and inverse of the operation is completed, the calculator can be cleared and closed calculator operation, when a digital input Data accidentally mistype BackSpace key can be used to clear the value and some basic, simple operation.
The main idea of virtual calculator programming is to express an operation complete process: first the first data input, storage and display; another is the type of operation for input and storage; then enter the second data storage and display; and finally Press the "=" the outcome or by other operators continue to perform continuous operation symbol.
Keywords:Scientific Calculator; virtual instrument; four operations
目录
一、绪论............................ ...............................3
1.课题背景.............................. ...........................3
2.当前所采用的方法.................................................3
3.虚拟仪器（VI）概念...............................................4
二、Labview控件....................................................7
1.Labview控件......................................................7
2.Labview函数......................................................14
3.正则表达式.......................................................17
三、主要模块设计...................................................18
1.清除和删除.......................................................19
2.删除无效0........................................................19
3.判断键盘输入.....................................................20
4.小数点的键入.....................................................22
5.特殊计算.........................................................23
6.计算结果.........................................................26
四、虚拟计算器设计.................................................28
1.总体设计.........................................................28
2.工作流程.........................................................29
3.前面板设计.......................................................29
4.基本框图.........................................................30
五、结论...........................................................35
六、参考文献.......................................................37
参考文献
[1] 郑对元.精通Labview虚拟仪器程序设计[M].清华大学出版社，2012，05：388.
[2] 任凯.基于JAVA的简单计算器的设计与实现[J].电脑知识与技术，2011，05：3566.
[3] 王健南.基于VC_的小型计算器程序设计[J].农业网络交流，2009，09：124
[4] 秦鸿霞.基于VisualFoxPro的计算器的设计[J].电脑知识与技术，2007，14：450.
[5] 杨乐平，李海涛，肖凯 杨磊. 虚拟仪器技术概论[M]. 北京：电子工业出版社， 2003:1-5
[6] 张毅，周绍磊，杨秀霞. 虚拟仪器技术分析与应用[M]. 北京：机械工业出版社， 2004:1-7
[7] 陈树学，刘萱. Labview宝典[M].北京：电子工业出版社，2011:23-39.
[8] 吴石增等 现代科学仪器与计算机技术[J] 现代科学仪器，2006（6）52-58
[9] 申炎华，王汝杰等著.Labview入门与提高范例教程[M]北京：中国铁道出版社， 2006:20-40.
[10] 侯国屏,王坤等编著Labview7.1编程与虚拟仪器设计[M].清华：清华大学出版 社,2005：32-39.
[11] 王磊，陶梅编著.精通Labview 8.0[M] 北京：电子工业出版社，2007:77-80.
[12] 黄峰.虚拟仪器技术教学资料[M].湖南工程学院出版社，2009:82-98
[13] 朱煜军，刘品，刘斌.电子计算器的科学使用与技巧[M].国防工业出版社
摘要：本次毕业课程设计是基于Labview的虚拟仪器系统来设计简单的计算器，通过开发Labview的虚拟仪器系统和结合实践原理可以开发出一种虚拟计算器来模拟真实的计算器和一些简单计算器具有的基本操作。大概追溯在1970年代，那是虚拟仪器的起源。虚拟仪器和普通传统仪器不同在于，虚拟意指突出软件在仪器中起到的作用，另一方面也体现了虚拟仪器实现的各种功能与传统仪器通过主要硬件实现的功能不同的最大区别。虚拟仪器的结构形式具有多样性又能广泛的适用于各个领域，所以在定义虚拟仪器的概念这方面没有统一性。美国国家仪器公司对虚拟仪器的看法是，虚拟仪器这个测控系统是由计算机本身的硬件资源、模块化的仪器硬件和用于数据分析、过程通信及图形用户界面的这三方面软件组成的，是一种由计算机操纵的模块化仪器系统。随着虚拟仪器的技术发展，工程师们可以通过使用虚拟仪器具有的软件开发的高效方便性，完美的解决设计的方案更好的满足了多变的需求。计算器的设计采用的是虚拟仪器技术，通过计算器可以操作四个简单的算术完成，可以是平方、三角函数和倒数操作完成，该计算器可以清除和关闭计算器的操作，当一个数字输入数据不小心被输入错误的话BackSpace键可以用来清除值和一些基本操作。
虚拟计算器编程的主体思想就是要完整的表达出一个运算过程：首先输入第一个数据，存储并显示；再是对运算类型进行输入并存储；然后输入第二个数据，存储并显示；最后按等于键得出结果或者是按其他运算符号继续进行连续的运算。
关键字：Labview ；科学计算器； 虚拟仪器； 四则运算
Based on Labview virtual calculator
Abstract:The course design is based on Labview virtual instrument system to design a simple calculator, through the development of Labview virtual instrument systems and principles with practice you can develop a virtual calculator to simulate a real calculator and some simple calculators have basic operation. Probably dating back in the 1970s, it was the origin of the virtual instrument. Virtual instruments and common difference is that the traditional instruments, virtual instrument software is meant to highlight the role, it also reflects the various functions and traditional instruments by major hardware functions implemented in different virtual instruments biggest difference. Formal structure of virtual instrument diversity but also widely applied to various fields, so the definition of the concept of virtual instrument in this regard is no unity. National Instruments is the view of the virtual instrument, virtual instrumentation and control system that is composed of computer hardware resource itself, modular instrument hardware and for data analysis, these three aspects of software process communication and graphical user interface consisting of a manipulated by a computer modular instrumentation systems. With the development of virtual instrument technology, engineers can use virtual instrument software development have efficient ease, the perfect solution programs designed to better meet the changing needs. Calculator design uses a virtual instrument technology, the calculator can be operated by four simple arithmetic is completed, can be square, trigonometric and inverse of the operation is completed, the calculator can be cleared and closed calculator operation, when a digital input Data accidentally mistype BackSpace key can be used to clear the value and some basic, simple operation.
The main idea of virtual calculator programming is to express an operation complete process: first the first data input, storage and display; another is the type of operation for input and storage; then enter the second data storage and display; and finally Press the "=" the outcome or by other operators continue to perform continuous operation symbol.
Keywords:Scientific Calculator; virtual instrument; four operations
目录
一、绪论............................ ...............................3
1.课题背景.............................. ...........................3
2.当前所采用的方法.................................................3
3.虚拟仪器（VI）概念...............................................4
二、Labview控件....................................................7
1.Labview控件......................................................7
2.Labview函数......................................................14
3.正则表达式.......................................................17
三、主要模块设计...................................................18
1.清除和删除.......................................................19
2.删除无效0........................................................19
3.判断键盘输入.....................................................20
4.小数点的键入.....................................................22
5.特殊计算.........................................................23
6.计算结果.........................................................26
四、虚拟计算器设计.................................................28
1.总体设计.........................................................28
2.工作流程.........................................................29
3.前面板设计.......................................................29
4.基本框图.........................................................30
五、结论...........................................................35
六、参考文献.......................................................37
参考文献
[1] 郑对元.精通Labview虚拟仪器程序设计[M].清华大学出版社，2012，05：388.
[2] 任凯.基于JAVA的简单计算器的设计与实现[J].电脑知识与技术，2011，05：3566.
[3] 王健南.基于VC_的小型计算器程序设计[J].农业网络交流，2009，09：124
[4] 秦鸿霞.基于VisualFoxPro的计算器的设计[J].电脑知识与技术，2007，14：450.
[5] 杨乐平，李海涛，肖凯 杨磊. 虚拟仪器技术概论[M]. 北京：电子工业出版社， 2003:1-5
[6] 张毅，周绍磊，杨秀霞. 虚拟仪器技术分析与应用[M]. 北京：机械工业出版社， 2004:1-7
[7] 陈树学，刘萱. Labview宝典[M].北京：电子工业出版社，2011:23-39.
[8] 吴石增等 现代科学仪器与计算机技术[J] 现代科学仪器，2006（6）52-58
[9] 申炎华，王汝杰等著.Labview入门与提高范例教程[M]北京：中国铁道出版社， 2006:20-40.
[10] 侯国屏,王坤等编著Labview7.1编程与虚拟仪器设计[M].清华：清华大学出版 社,2005：32-39.
[11] 王磊，陶梅编著.精通Labview 8.0[M] 北京：电子工业出版社，2007:77-80.
[12] 黄峰.虚拟仪器技术教学资料[M].湖南工程学院出版社，2009:82-98
[13] 朱煜军，刘品，刘斌.电子计算器的科学使用与技巧[M].国防工业出版社