TEST & MEASUREMENT FEATURE
high speed video is the most common in the Automotive and Machinery industries.
PREDICTIONS FOR FUTURE USE OF VIDEO IN MEASUREMENT When it comes to the future use of video in measurement applications, a total of 54 per cent of respondents expect video use to increase, compared to 37 per cent non- users and 76 per cent of those who already use video. Thus, those already using video expect to increase their usage in the next year. No respondent expected video usage to decrease going forward. Of those 50 respondents who expect to increase their use of video in data, a majority (69 per cent) predict a substantial growth of 10-50 per cent. According to the survey, the largest increase will be seen in the automotive industry.
CONCLUSION Based on the survey, it is fair to say that video is on its way to becoming an established source of information alongside other sources of data coming from intelligent sensors (radio transmitting/wireless: satellite based, near
and wide field radar), tactile or passive transducers or sensors, digital bus sensors and calculated real-time data of certain use case or environmental situations. Currently, HBM already integrates
“The survey clearly confirms the
need for imagery in addition to classic sensor data and verifies the likeliness of the worlds of video and test and measurement coming together."
video into a wide range of its applications, with three typical areas being vehicle testing, lab or bench testing and infrastructure testing and this is likely to become even more in demand in the future. We will see sensors and video integrated together into data acquisition systems (DAQ) in more application areas over time, which will bring more valuable insight - not just to engineers but also to the general public. It could be argued that video might sometimes be more illustrative than
traditional data to target groups including non-engineers.
Managers, for example, are normally
not in the driver’s seat rumbling across bad roads for durability testing purposes. As maximum reliability and robustness need to be validated and stand for the residual value and safety of a vehicle in all conditions, this can be well illustrated in a video. Additional use could also extend to in-house marketing teams or even end users.
One issue that does need to be taken
into account is that video generates a great deal of data. Even an inexpensive webcam produces large amounts of raw data per second, so users need to ask what is relevant. Too much data might not be needed for the purpose of the particular test, and might only make interpretation and data processing harder. Perhaps one single image frame of a bump in the road would be enough to explain the deviation which can be seen in traditional sensor data when testing a vehicle. In conclusion the survey clearly confirms the need for imagery in addition to classic sensor data and verifies the likeliness of the worlds of video and test and measurement coming together. Although it is clear tactile sensors still have a place in terms of accuracy, they can be combined, not only with regular video, but also with stereoscopic cameras, which use images to track and measure a certain position. Although this future path might reduce the number of sensors needed, it does not in any way make them redundant. As tactile and non-tactile worlds of data collection come together there is no question of using either video or traditional sensor data – but of both.
HBM
www.hbm.com
HBM data acquisition systems Precise, reliable and meeting your requirements.
Every application has its own challenges for the test and measurement equipment used. HBM Test and Measurement provides you with the right data acquisition systems that meet your requirements.
Test bench measurements Structural tests, stress analysis and laboratory measurements Mobile measurement technology High-speed measurement Calibration and high-precision measurement
Benefit from unique accuracy and reliability made by HBM.
We also offer a wide range of data acquisition and analysis software. HBM data acquisition systems can also be easily integrated into third-party software or customized applications.
More Information:
www.hbm.com/instrumentation-daq
INSTRUMENTATION | SEPTEMBER 2017 HBM Test and Measurement Tel. + 49 6151 803-0 Fax +49 6151 803-9100
info@hbm.com
www.hbm.com HBM United Kingdom Ltd Tel. 0208 515 6000
info@uk.hbm.com
www.hbm.com
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