Patent attributes
A joint movement monitoring device includes a joint pad that fits over a joint. The joint pad has a primary section placed over a first side of the joint and has an opposing section placed over a second side of the joint. A plurality of three-dimensional (3D) magnetic sensors are incorporated into the primary section of the joint pad. The 3D magnetic sensors are separated by a known distance. A magnet is incorporated into the opposing section of the joint pad. A controller obtains signals from the plurality of 3D magnetic sensors. The signals are used to detect magnet rotation angles related to 3D magnetic sensors within the plurality of 3D magnetic sensors. The detected magnet rotation angles are used to monitor joint position of the joint.