铁路沿线环境复杂,至今仍然是共电电话、磁石电话与自动电话一起使用。这些设备的测试、检修没有综合测试仪表,更无法与计算机连接完成自动测试。现在可使用虚拟仪器,即在计算机上加装一套软件和硬件,就象操作一台专门设计的传统电子仪器一样。将虚拟仪器系统应用在铁路专用通? The environment along the railway is complex and so far it is still a common telephone, which is used in conjunction with an automated telephone. The testing of these devices, overhaul without integrated test instruments, but also unable to connect with the computer to complete the automatic test. Virtual instruments are now available, with the addition of a set of software and hardware to your computer, just as you would with a custom designed, conventional electronic device. The virtual instrument system used in railway special pass?