Fig. 2. Hadrian X wall construction robot
Fastbrick Robotics in Australia is a company specializing in the research and development of large-scale wall construction robots. This company has developed several large-scale robots for wall construction, among which Hadrian X wall construction robot is its latest model, as shown in Figure 2. The robot is composed of three parts: a carrier device, a 6-axis industrial robot arm and a manipulator. It uses 3D computer-aided design software to draw a residential model, automatically judge the position of bricks, and grabs bricks with suction cups. The robot arm with six degrees of freedom can realize the installation of bricks in all directions.
By comparing the mechanical structure and control system of the above two typical construction robots, it can be seen that the wall construction robot developed by Essen University in Duisburg, Germany is small in size and light in weight. In operation, manual cooperation is required, which can save about 6.5% cost compared with traditional robot operation. The Had-rian X wall construction robot, which is transported by giant trucks, is bulky and heavy. After a series of tests, the robot can finish laying 1,000 bricks in one hour.