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collaborative robots: future of the industry

July 2019

Working with robots: a Danish revolution

Humans working in close collaboration with robots are the future of industry but safety is key.

Violin-playing robots may attract millions of views on YouTube, but those that are really changing the world are the ones designed to perform mundane tasks with a high degree of precision while keeping their human co-workers safe. 

Building the sorts of robots that can work in close proximity with people has only come about in recent years thanks to greater computing power and ever smaller sensors and motors. It’s become a specialised field concentrated in industrial clusters like Odense, a former shipbuilding centre in Denmark, which members of the Pictet-Robotics Advisory Board recently visited. 

During the 1980s when Danish shipyards were struggling with cheaper competition from rivals in places like South Korea, far-sighted owners started to look for ways to automate some of the skilled but in particular mundane jobs like routine welding. A large grant to the local branch of the Danish Technological Institute helped seed what has since become a significant centre for robotics. Today, there are 4,000 people working on robotics in Odense, making Denmark one of the major robotics countries in the world.

With the focus squarely on commercial applications, the work done by Odense robotics companies is less glamourous than, say, the humanoid machines developed by boffins at MIT. But the technology is no less complex or impressive – like the collaborative machines produced by Universal Robots, an Odense company owned by Teradyne.*

For instance, assembly-line robots may have long been an industrial staple, but those that work autonomously yet closely in tandem with people are only just beginning to take off, according to the Advisory Board. 

Rise of the cobots

Collaborative robot total annual world sales, '000

collboratve robot

Source: Barclays Research. Forecasts from 15.02.2016.

Industrial robots that don’t simply follow a limited set of instructions or require a human operator have the potential to liberate skilled workers to focus on more complex tasks. They become even more useful if they can work cooperatively with and in close proximity to those same workers. 

For instance, collaborative robots can take assembly line stations, doing fiddly, routine jobs that people dislike, freeing up their human colleagues to work on more value-add tasks like quality control and bespoke modification.

By using off-the-shelf components where possible to complement parts designed in-house, Odense firms can quickly assemble industrial robots with specialist applications and put together complete, working systems that meet clients’ needs. 

Little wonder, then, that sales of these robot systems are expected to be some 728,000 units – worth USD11.5 billion a year – by 2025. That compares to a market worth just USD800 million in 2017 and one that has grown from virtually a standing start in 2012, according to Barclays Equity Research, with much of the demand coming from the automotive and tech industries.

Doing away with drudgery

As an example, this sort of automation allows workers to be shifted away from routine warehouse work such as material handling. Robots, such as the low, flat pallet movers produced by Mobile Industrial Robots*, another Odense-based company, are increasingly taking over distribution centres. A third firm is working on robotic welding, targeting a large market where there is a declining labour force with the skillset to do the work (in the UK, for example, the average welder is 55 years old). 

But it’s been a challenge getting to this stage. Collaborative robotics, which is dependent on large amounts of high quality sensor data, has only become possible thanks to the development of increasingly sophisticated sensors as well as advances in computing power to process that data, according to the Advisory Board. 

AI is also making it ever easier to train industrial robots. For instance, in some cases, rather than having to be programmed using computer code, robots can be guided through tasks by human operators directly manipulating the robot’s arms so that they learn by doing.

getting closer

Types of collaboration with industrial robots

Types of collaboration with industrial robots

Green area: robot's workspace; yellow area: worker's workspace. Source: IRF, based on: Bauer et al. (2016).

Because people aren’t robots, safety demands that these autonomous robots need to be able to adapt to variable circumstances. To ensure safety, co-working industrial robots need to be able to be aware of humans in their environment and need to be able to stop or manoeuvre out of the way if there’s a risk of injury and then to be able to smoothly return to the task once the danger passes. The latest technology is making that easier.

To ensure that humans remain safe robot manufacturers are bound by standards laid out by the International Organization for Standardization (ISO). Indeed ensuring safety is the most expensive element of this process, which is perhaps why the Chinese government is looking to move away from ISO and to develop its own safety standards. Were China to do so, the risk is that it would trade lower prices for risks to people’s safety.

As safety, cost and adaptability are addressed, people will find themselves working ever more with collaborative robots. Robots will increasingly take over some of our tasks, but mainly just dangerous or tedious work, leaving more interesting and varied tasks to humans. What’s more, they will increasingly be working side by side.