Research article

Accepted 22 July 2015

Abstract

This paper presents an amplitude modulation experiment for remote experiment in communication circuit. Based on combination with specific experimenting circuit and NI Elvis embedded control hardware as well as LabVIEW software package, the proposed solution enables the rapid and easy creation as well as handy operation of different interactive remote control experiments. A communication-circuit-based remote control laboratory for teaching purposes has been realized using the schema. Equipped with a set of virtual instruments, this remote laboratory enables the remote users to easily interact with a set of physical and control experiments through the Internet. In the friendly user interface, the remote user can change predefined system parameters and observe system response like waveform on oscilloscope, textual response on the panel or real-time surveillance video. On the basis of Amplitude Modulation and detection, the solution was proved to work out fine, the waveform of the AM and detection shown on the oscilloscope, interaction with remote server working properly, and status of the laboratory transmitted normally.

Keywords: Amplitude modulation and detection，LabVIEW, Virtual instruments, NI Elvis，remote laboratories