NTU Singapore automates spray painting with PictoBot.

A new NTU robot will soon be spray-painting the interiors of industrial buildings in Singapore, saving time and manpower while improving safety. Known as PictoBot, the robot is invented by scientists from Nanyang Technological University (NTU Singapore) and co-developed with JTC Corporation (JTC) and local start-up Aitech Robotics and Automation (Aitech). PictoBot can paint a high interior wall 25 per cent faster than a crew of two painters, improving both productivity and safety. Industrial buildings are designed with high ceilings to accommodate bulky industrial equipment and materials. Currently, painting the interiors of industrial buildings requires at least two painters using a scissor lift. Working at such heights exposes painters to various safety risks.

In comparison, PictoBot needs only one human supervisor, as it can automatically scan its environment using its optical camera and laser scanner, to navigate and paint walls up to 10 metres high with its robotic arm. It can work four hours on one battery charge, giving walls an even coat of paint that matches industry standards. Equipped with advanced sensors, Pictobot can also operate in the dark, enabling 24-hours continuous painting. Developed in a year at NTU's Robotic Research Centre, PictoBot is supported by the National Research Foundation (NRF) Singapore, under its Test-Bedding and Demonstration of Innovative Research funding initiative.

The initiative provides funding to facilitate the public sector's development and use of technologies that have the potential to improve service delivery. This is done through Government-led demand projects, where agencies use research findings to address a capability gap and quickly deploy the new technology upon successful demonstration. 

Painting large industrial spaces is repetitive, labour intensive and time-consuming. PictoBot can paint while a supervisor focuses on operating it. The autonomous behaviour also means that a single operator can handle multiple robots and refill their paint reservoirs.

Using PictoBot to automate spray painting helps us mitigate the risks of working at heights when painting high walls typically found in industrial buildings. In addition, it helps to reduce labour-intensive work, thus improving productivity and ensuring the quality of interior finishes. PictoBot is an example of how autonomous robots can be deployed to boost productivity and overcome the manpower constraints that Singapore faces in the construction industry. 

Source: Phys.org