Santos Engine™ 2010 New Features
and Capabilities
Realistic Avatars
The avatars available in the Santos Engine™ model are based off real human body scans and as such are extremely realistic. A library of are available for different body types. These types represent the different human types. All the avatars are scalable and can be modified to fit different anthropometric groups. They have modifiable joint limits and modifiable link lengths.
Anthropometric scaling options are also included, which scale almost all anatomical significant body part lengths. This will also include scaling according to human percentile ranges, body sizes from standards data and the ability to change body sizes to match an individual. The avatars can also be draped with different accessories that not only move with the avatars but also interact with the avatars dynamically, altering the way the avatars move.
Dynamic Modeling
Dynamic modeling is the prediction of human motions under the influence with external loads. The dynamics model allows calculation of dynamics for the high number of degrees of freedom of a human body without using integration. This makes it considerably faster than human solutions currently available.
The feedback from dynamic modeling includes joint torques and energy consumption. The dynamic modeling package includes walking, running under different loading conditions (back packs, armor etc), also included are complex motions such as crawling, aiming climbing up stairs etc. The avatar provides feedback while performing all these motions another first for human modeling. Dynamic modeling would also allow the user to predict postures by loading joints. The dynamic modeling suite offers the user the chance to experiment with different human scenarios without real human experimentation. Dynamic modeling functions can be created for specific custom tasks if required.
Hand Model
The Santos Engine™ model also boasts the most advanced Hand™ model available, with 55 degrees of freedom per hand. It also offers detailed posture prediction, contact forces, collision detection and grasping capabilities. The hand will also have collision detection functionality and intelligent grasping abilities.
Physiological Model
The physiological models will include simulation of heart rates, breathing rates and core body temperature of the human body in response to various activities. Anatomical modeling with real time muscle wrapping around bones is also being developed. A system of muscle fatigue is being developed based on control theory. Muscle strength is predicted based on experimental torque velocity curves.
Physicalized Environment
The environment that Santos avatar exists in is physicalized. These are environments in which the objects can be assigned physical properties such as mass; inertia etc, the digital human will react according to the physical properties of the object. Objects in the environment can also be filled with spheres which aid in collision detection and avoidance.
Motion Capture
Motion capture will enable Santos Engine™ to interact directly with humans and will also be utilized to validate the science behind Santos Engine™. Motion capture is the link that allows real human motion to be transferred to the avatars in the environment.
Advanced Motion Simulation
Advanced motion simulation is a method of using posture prediction to generate motion sequences. These sequences check for collisions with self (avatar) and environmental collisions with objects. These motions can be seeded with real motion capture data or with generated postures. It is a fast robust method that can be used when one does not require the accuracy of a dynamics prediction.
