Dear Prerna Gupta

Quadruped Robots feature four legs or limbs and walk like quadruped animals. They are more agile and stable than bipedal robots. They are widely categorized into two types based on their leg structure: Mammal-type and Sprawling-type.

Legged robots are a form of mobile robot that moves by using movable limbs, such as leg mechanics. They are more adaptable than wheeled robots and can traverse a wide range of terrains, but these benefits come at the expense of higher complexity and power consumption.

A quadruped robot is capable of walking with both statically and dynamically stable gaits. Each leg of the robot is pulled up and down sequentially in the statically stable gait, and there are at least three stance legs at any one time. This is referred to as a crawling gait.

Have a look with these articles also:

1. https://www.sciencedirect.com/science/article/pii/S2405844018326938

2. https://www.sciencedirect.com/science/article/pii/S2090447920302501

3. https://journals.sagepub.com/doi/full/10.5772/61542

4. https://cjme.springeropen.com/articles/10.1186/s10033-020-00485-9

Kind Regards

Qamar Ul Islam

Dear Prema Gupta,

Three Degrees of Freedom, or 3DoF, is a virtual reality concept that describes how learners interact with a virtual environment. With 3DoF, learners can: move left and right, move up and down, Pivot left and right.

3DoF means learners cannot move throughout the virtual space. However, learners can interact with the environment via gaze control or a laser pointer controller. 3DoF can be useful for practicing job duties that are significant yet sedentary, like navigating difficult conversations with coworkers.

This is why the two designations exist, according to the maximum possibility given to the legs or to the arms.

Best regards