PLCs, DCSs & Controllers


Data and the smart machine revolution

June 2018 PLCs, DCSs & Controllers

Take a look at Forpheus, Omron’s table tennis playing robot. It symbolises the company’s 3-i philosophy for machines – integrated, interactive, intelligent. How can a machine like Forpheus play a sport? While Forpheus combines several technologies to create a robot with human-machine interaction, the fundamental element to making any machine smarter is data.

The first step is collecting data, from individual machines or preferably from an entire production line. Analysing all this data can be handled effectively and cheaply using today’s processing power and cloud storage. Clean data is essential to enable more efficient processing and the best results. Displaying this collected information on a screen in an easy to understand way can help operators identify and respond to anomalies in the process.

Data analysis helps operators

Displaying process operation data in this way can already deliver 20 to 30% efficiency increases. However, as the amount of data increases, humans are less capable of interpreting it or perceiving patterns. By incorporating large data analysis software, computers offer a more accurate tool to support humans in the task of analysing the big data. These tools can identify irregularities in performance data and flag potential issues to the operator.

With more data and more advanced analysis, the insights and results become more comprehensive and accurate. For example, instead of just identifying an issue, the system can locate exactly where the problem is in the line and what needs to be done to fix it. The operator’s job is made easier and line efficiency is further optimised.

As the amount of data increases, data management also becomes important. Collected data is often taken offline for advanced processing and pattern recognition. The resulting patterns are transferred back to the factory to be implemented in real-time by the machine.

Using data to increase automation

Automation can be taken a step further. Smart systems could identify an issue or potential issue, flag it, and then automatically adapt parts of the production line to compensate for any shortfall whilst the problem was being fixed. All within safe operating parameters. This results in even better production efficiency.

Let us consider this at the level of an individual machine. Smart machines, equipped with data analysis capabilities, can optimise their behaviour for any given situation because they know how they are supposed to work normally. They monitor their own performance, ensuring it matches expected behaviour. If a defect or divergence from a standard pattern occurs, the machine reports the issue to the entire system and if possible compensates for the issue by amending its operation. From a system viewpoint, any alterations must be balanced throughout the line to ensure consistent operation between machines.

Real smart factory automation

The complexity of the data is one of the items that makes moving to a smart factory a major challenge. That is why Omron is implementing these smarter systems into its own processes, allowing the company to investigate requirements and develop best practices. And there is plenty to learn. At first when they start looking at their own processes two years ago, the very first data scientist spent 80% of his time just cleaning up the data.

Today they are applying what they have learned to their systems and products to bring the benefits of smart automation to their customers. Together with several selected customers, they are now carrying out experiments in smart automation, learning where any bottlenecks occur. In the end, only by performing this research in real factories can the real value be uncovered.

Human-machine interaction

Building on data collection and analysis, smart automation can be extended into the realm of human-machine interaction. Returning to Omron’s budding ping-pong champion, Forpheus has the capability to observe the motion of the opponent facing it on the other side of the table, along with cameras that watch the ball’s movement. Analysing the data from the sensors, it can calculate movement very precisely and quickly, so it can anticipate how the opponent will hit the ball and its trajectory. Forpheus then moves its paddle to intercept the ball and hit it back across the table.

How difficult or easy it returns the ball gives a clue as to one way this smart machine can be used to general advantage. By being able to assess how its opponent plays, it can determine its skill level. Forpheus can modify its own playing level to get the best from its opponent. If it plays at a slightly better level, the opponent will have a challenging game without becoming frustrated. Hence, smart machines can also be used to train people.

For more information contact Omron Electronics, +27(0)11 579 2600, info.sa@eu.omron.com, www.industrial.omron.com


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