Test & measurement
Figure 1: A test and measurement equipment cloud like the one Rohde & Schwarz operates for its own purposes and that could also be set up for customers. The devices and device groups can be used from any location. In this example, two users are accessing different devices simultaneously.
Bringing the test lab to your home office
Many employees have to work at home due to the coronavirus pandemic. This is rarely an option for engineers who need constant access to test equipment. However, there are workarounds. Sascha Laumann, product owner at Rohde & Schwarz, explores test and measurement via the cloud.
R
emote control of test equipment has been standard practice in labs and system houses for many
decades. Nowadays even low-cost devices have the necessary interfaces, at least as options. Top-end devices often have built-in web servers, allowing them to be operated remotely from any browser. All that is needed is the IP address, and the device must be accessible online. For remote unattended measurement stations
with a static setup, remote access and operation is already common practice. In all cases, it is important to have effective access protection with authentication mechanisms. This is not a problem in a protected lab environment, where remote control capability is often used for convenience to avoid having to constantly go back and forth between the workplace and a test lab located elsewhere. What these scenarios have in common is
that they are one-off special solutions that have to be reconfigured for each application. For those who want to take a broader approach to remote control of test equipment and make it a workable standard practice, a cloud based solution is an obvious approach.
Figure 2: Adding a data analysis path to the setup in Figure 1. Measurement data collection at the instrument location and data analysis can be decoupled and performed by different persons. Rohde & Schwarz offers this sort of analysis cloud for public use at
www.rohde-
schwarz.com/cloud4testing.
52 September 2020 Instrumentation Monthly
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