FEATURE TEST & MEASUREMENT
Using video to support sensor data T
ypically used in vehicle testing applications, lab or bench testing
and infrastructure monitoring, video cameras are used in many applications throughout the test and measurement industry. With this in mind, the aim of this study was to analyse the different applications of video in test and measurement and to investigate user value, need, preferred solutions and trends surrounding its application. As part of its research, HBM conducted a
digital online survey with 100 participants, from eight European countries, to explore the level of use of video recordings in test and measurement applications. Participants were all volunteers and accepted the survey via a pop-up window on
www.hbm.com, through its digital newsletter or engaged through a series of social media posts.
Respondents were active in these industries
LEVEL OF VIDEO USAGE TODAY Findings revealed that approximately 47 per cent of respondents use video in their data recording jobs daily with those in Construction and Civil engineering (67 per cent) and Automotive (57 per cent) rating slightly higher than those in Machinery and Automation/Process industries (both 46 per cent). However, it is worth pointing out that of those not using video in data collection, over a third predict say that they will start doing so in the next year. Thus, a growing demand for integrating video in test and measurement can be expected.
Respondents who combine data collection with video recording
Following its research into the trend of using video for data collection, HBM has released a report which explores the central question: How can video support traditional data sensor data?
REASONS FOR USING VIDEO When asked about the motivation behind using video in data collection, 72 per cent of participants responded with “Getting additional helpful input to analyse unexpected deviations” (i.e., identified truck on bridge as load) as by far the most common reason. Other reasons for choosing a combination of tactile sensor data and video included “to be able to
Reasons for combining traditional data collection with video
Respondents’ field of work
AREAS OF USE IN VIDEO When it comes to how video is applied to test and measurement applications, the survey revealed that it is currently most commonly used for structural durability and fatigue testing (48 per cent). Other relatively common areas of application are machine monitoring, mobile data acquisition and road load data acquisition. In addition to structural durability, fatigue testing and machine monitoring, respondents in the Automotive industry also listed using video in crash and impact tests. Among respondents marking the “Other” option, application areas such as “oil leakage”, “nuclear power safety” and “ship model testing” are mentioned.
Age of respondents
Areas in which video is used in parallel to analogue and digital sensor or bus data
interact accordingly based on video analysis (decision finding)” (50 per cent) and “to visualise test and measurement results in an impressive way for management” (41 per cent). Among those who choose “Other” reasons, these were summarised as “getting a better understanding” and “showing results to other parties”. Within the machinery application, research shows it is most common to use video for decision finding (86 per cent) whilst in the Automotive industry, “to get additional input to analyse unexpected deviations” was the most common reason
Video camera recording used in combination with data collection
behind video use (75 per cent). The same reasoning was applied by respondents in the Automation/Process Industry.
Split across a range of categories, the
most common industries of work for participants was Automotive and Machinery (both 15 per cent), Automation and Process Industry (13 per cent). In the category “Other”, Rail and Test and Measurement appeared several times.
32 SEPTEMBER 2017 | INSTRUMENTATION
CHOOSING THE CORRECT EQUIPMENT When it comes to camera equipment, it appears that regular webcams are by far the most common equipment in use, with 80 per cent of respondents opting to use such cost-effective cameras. Research also revealed that high speed video is also used by over a third of respondents, often in combination with traditional video. However, a couple of the respondents did indicate that they use a very slow video camera (slow motion cams like thermal imaging or IR cameras) in their applications. The survey also revealed,
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