Although everyone has recently heard of many urban delivery robots that rely on four wheels to move on urban sidewalks, the Mighty robot has brought something new. It uses rotating wheels mounted on articulated legs. One of the problems with some existing delivery robots is that they are basically just "smart" lockable cargo boxes with two sets of power wheels at the bottom.
This setup is no problem for autonomously speeding on smooth sidewalks, but it does not perform well for crossing roadsides, climbing steps, or traversing obstacles in the real world in other ways.
Mighty, developed by Piezo Sonic, a Japanese robot company, is designed to do this. In fact, it is actually designed based on the concept of a moon-exploring robot-and there are no smooth sidewalks on the moon.
First, its four independently powered wheels can point straight ahead for normal cruising, or they can all be rotated 90 degrees to point to the side - then the robot can move directly to one side or the other. If all four wheels are partly turned in or out, Mighty can spin in place.
In addition, each wheel is mounted on its own hinged leg. This means that when the robot moves on uneven terrain, each leg can bend independently to compensate and keep the body of the robot relatively level. In addition, it can also use this function to climb shallow groups of buildings without falling backwards.
Like other wheeled delivery robots, Mighty uses GPS to navigate the city, and also uses cameras and LiDAR sensors to avoid pedestrians and other dangerous objects. According to Piezo Sonic, it can carry about 20 kg of cargo, cross obstacles up to 15 cm, climb a slope of 15 degrees and reach a maximum speed of 10 km/h. The robot weighs 25 kilograms and is estimated to run for about four hours per charge.
In addition to being used for delivery, other possible applications include security patrols in facilities, or tasks such as agricultural harvesting and soil sampling on the farm (but with the help of an additional robotic arm).
According to the plan, Mighty will initially be put into use in Tokyo's Ota district. It recently won the Innovation Award at 2022 CES.
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