System and method for simultaneous display of waveforms generated from input signals received at a data acquisition device

摘要

A method and system for displaying waveforms generated from input signals received at a common input channel (CIC) of a data acquisition (DAQ) device. An input signal received at the CIC can be displayed as a present-time waveform, and while the input signal is displayed as a present-time waveform, the input signal can be tagged for displaying the input signal as a historical waveform for the CIC. After receiving another input signal at the CIC, a display can be refreshed to display, simultaneously, the historical waveform for the CIC and the other input signal as another present-time waveform for the CIC. The DAQ device can tag the displayed input signal in response to a user pushing a selector device on the DAQ device. The display can display other present-time waveforms with the historical waveform to allow a user to compare input signals received at the CIC.

主权项

1. A method comprising:
receiving a first input signal at a first input channel of a data acquisition (DAQ) device; after receiving the first input signal at the first input channel, refreshing a display to visually present the first input signal at the first input channel as a first present-time waveform for the first input channel; receiving, while the first input signal at the first input channel is visually presented as the first present-time waveform for the first input channel, a first user input at a user interface and responsively tagging the first input signal at the first input channel as a first historical waveform for the first input channel; and after receiving the first input signal at the first input channel, receiving a second input signal at the first input channel and responsively refreshing the display to visually present, simultaneously, the second input signal at the first input channel as a second present-time waveform for the first input channel and the first input signal at the first input channel as the first historical waveform for the first input channel.