Autonomous waste disposal

How to take care of trash in parks and public spaces in a more modern way? Concerning the semester topic IoT we created a fleet of interconnected cleaning robots, that integrate seamlessly into the public ecosystem.


My Role

User research
Interaction design
Prototyping with Unity3D

Team

Sebastian Schuchmann
Lisa Hofstädter
Dogukan-Deniz Yoltay

Year

Summer 2017

Cigarette litter is very common

According to a european wide study concerning littering cigarette ends are the objects that are thrown away the most at public spaces. To be exact, cigarette ends fill 58% of the total amount of litter. Therefore we decided to focus on this specific problem in our concept.

How the system works

The system contains a static unit and mobile units. The static unit is the storer, navigater and communicator of the system. Among storing collected trash it acts as a middleman between the mobile units and third parties such as the communal waste disposal company. Furthermore it is responsible for navigating and managing mobile units in the park. The main advantage of such a unit is to centralize the disposal transportation for third parties as well as not disturbing the daily usage of the park.

Mobile units are the executive instance of the system. They follow paths according to updated heat maps and designated paths in the park to finally store them at the static unit. There are two types of mobile units. One is specifically for disposing cigarette litter. The other larger one is for collecting larger litter.

Adapting natural principles

Just like squirrels or hedgehogs, the robot fleet has to keep a balance between preserving a considerate distance to other park users yet they have to remove waste effectively. Therefore the robot fleet would be adopting exactly those kinds of animal traits.

Forming Process

We derived the shape of the mobile unit from the previously defined character traits. To stay quiet and imperceptible, a mobile unit would look flat with soft friendly edges. To collect small cigarettes ideally it has similar to hedgehogs or ant bears a pointy mouth to reach small corners.

Behavioural Study

It was very percipient to test the designed behaviour and shape of the unit in the park. We rapidly build the shape and attached it to a remote-controlled toy-car. After this study, we learned that a visual interface between human park users and mobile robots is necessary to display some sort of feedback and reaction.

Prototyping with Unity

To check how the whole system interacts, we created a click prototype via Unity. Via clicks on the screen, one can place litter in the park.

Reflection

This project taught me how multiple rapid prototypes can become a shortcut of improving a concept before realization. We created prototypes to check the following aspects:
  • Testing the designed behaviour,
  • examine the way how the whole system works together (Unity3D prototype)
  • and testing the shape via sketches, 3D renderings and constructing a 3D model.
This was a faster and very insightful way to not only test our concept but also explaining the concept in many perspectives.