iMTFusion数据融合算法

 iMT Fusion是VMSENS基于物理模型、数据科学、AI、机器学习的云端的未来IoT智能家居与可穿戴技术的技术解决方案

VMSENS基于iMTFusion技术为游戏行业、UI交互、LBS、室内定位、可穿戴设备提供定制化的解决方案,通过云端与嵌入式设备智能交互,成为低功耗、高效率的智能设备IoT设备平台基础

软件平台支持iOS、Android、Windows

硬件平台支持云端数据处理与嵌入式ARM Cortex内核

 

 

数据融合算法 --- 卡尔曼

The VMSENS sensor fusion algorithms typically fuse accelerometer, gyroscope, GPS and magnetometer data to deliver accurate and reliable motion-sensing information, and with quaternion math internally base Kalman Filter in order to ensure complete operation in any orientation without mathematical singularities.

The Kalman filter provides by VMSENS can be tuned in different ways, depending on the application. To accommodate the best performance, VMSENS offers user different parameters that are specifically tuned for the special application.

AI机器学习--- 卷积网络/ 模式识别


辅助以iMTFusion物理引擎模型,通过输入高精度的物理世界模型,模拟生物体前端传感网络获取,再通过卷积神经网络以其局部权值共享的特殊结构在模式识别处理方面有着独特的优越性,iMTFusion其布局更接近于实际的生物神经网络,权值共享降低了网络的复杂性,多维输入向量的参数可以直接输入网络这一特点避免了特征提取和分类过程中数据重建的复杂度

 

 

 

盲区推估

 

In navigation, dead reckoning is the process of calculating one's current position by using a previously determined position, or fix, and advancing that position based upon known or estimated speeds over elapsed time, and course.

 

 

可穿戴技术

iMT Fusion是VMSENS基于物理模型、数据科学、AI、机器学习的云端的未来IoT智能家居与可穿戴技术的技术解决方案

 

 

体感识别/ 手势识别

基本的iMTFusion 数据融合算法对原始的加速度、陀螺仪、磁力计进行处理,输出三维姿态数据以及其他与运动相关的数据(速度,角速度,角加速度,线性加速度) 

手势识别算法提供有效的方式进行手势识别,手势的设计应该具有灵敏和鲁棒,能够最大的利用数据融合算法的输出以及其他辅助信息,中间层库函数能够输出数据融合算法数据,并且能够根据针对不同的应用程序需求添加数字滤波器

信号输入和输出具有最大限度的灵活性,用以满足开发人员对程序的设计,实现运动测量与手势识别

 

 

 

 

 

航姿参考系统(AHRS)

AHRS consist of either solid-state or MEMS gyroscopes, accelerometers and magnetometers on all three axes. The key difference between an IMU and an AHRS is the addition of an on-board processing system in an AHRS which provides solved attitude and heading solutions versus an IMU which just delivers sensor data to an additional device that solves the attitude solution.

AHRS sensors were originally designed to replace the large traditional mechanical gyroscopic aircraft flight instruments and provide better reliability and accuracy. Typically an AHRS will consists of MEMS 3-axis angular rate gyro, a 3-axis MEMS accelerometer, and a 3-axis magnetic sensor known as a magnetometer. An onboard Kalman filter is used to compute the orientation solution using these measurements. Some AHRS sensors will also use GPS to help stabilize the gyro drift and provide a more accurate estimate of the inertial acceleration vector.

 

 

 

 

 

GPS(UWB/ 光学/ 磁场)增强 AHRS

To improve the AHRS performance under long-term accelerations and under conditions with severe magnetic disturbance, VMSENS has launched the GPS enhanced inertial navigation solution.

This solution fuse GPS and accelerometer to determine accelerations and velocity, which can be used to make the referencing with gravity more robust, resulting in a robust roll and pitch. Using the heading and course of the GPS, it is also possible to retrieve heading without using the magnetometers.

 

 

 

 

 

动作捕捉/ 表演捕捉

 

Mocap/ Motion Capture are terms used to describe the process of recording movement of one or more objects or persons. It is used in military, entertainment, sports, and medical applications.

In filmmaking, and games, it refers to recording actions of human actors, and using that information to animate digital character models in 3D computer animation.

When the Mocap includes face and fingers or captures subtle expressions, it is often referred to as performance capture.

MoX Suit is a flexible, camera-less full-body human motion capture solution. This portable system can be used indoors and outdoors.

No Markers, No Cameras, & No Occlusions starting from VMSENS Motion Capture, can be used in 3D character animation (for game, film, TV, advertising), Virtual Reality / Augments Reality, Training & Simulation, Sports science, Rehabilitation, Biomechanics research area.

 

 

虚拟现实与仿真

Virtual reality (VR) is a term that applies to computer-simulated environments that can simulate physical presence in places in the real world, as well as in imaginary worlds.

Simulation is often used in the training of civilian and military personnel. This usually occurs when it is prohibitively expensive or simply too dangerous to allow trainees to use the real equipment in the real world. In such situations they will spend time learning valuable lessons in a "safe" virtual environment yet living a lifelike experience (or at least it is the goal). Often the convenience is to permit mistakes during training for a safety-critical system.

 

低成本 MEMS AHRS

Lots of companies now offer low cost (<$10K) AHRS sensors on the market. All of these sensors utilize MEMs gyros, accelerometers, and magnetometers. The main difference between the low-cost AHRS sensors on the market is the type of attitude estimation algorithm utilized on the sensor.

VMSENS improved the inertial sensors calibration and algorithm to design Low-Cost AHRS’s that provide 3D orientation for a broad range of applications from unmanned vehicles/ craft, the stabilization of antenna and camera systems to human motion capture.

 

 

生物力学

Biomechanics is the study of the structure and function of biological systems by means of the methods of “mechanics.” – Which is the branch of physics involving analysis of the actions of forces. Within “mechanics” there are two sub-fields of study:

Statics: the study of systems that are in a state of constant motion either at rest (with no motion) or moving with a constant velocity.

Dynamics: the study of systems in motion in which acceleration is present, which may involve kinematics (the study of the motion of bodies with respect to time, displacement, velocity, and speed of movement either in a straight line or in a rotary direction) and kinetics.

VMSENS provide the idea wireless motion tracker ( iVM-w ) product for dynamics and statics analysis of biological systems.

 

步态分析

 

 

Gait analysis is the systematic study of animal locomotion, more specific as a study of human motion, using the eye and the brain of observers, augmented by instrumentation for measuring body movements, body mechanics, and the activity of the muscles. Gait analysis is used to assess, plan, and treat individuals with conditions affecting their ability to walk.

 

 

体育科学

Sports biomechanics is a quantitative based study and analysis of professional athletes and sports' activities in general. It can simply be described as the Physics of Sports. In this subfield of biomechanics the laws of mechanics are applied in order to gain a greater understanding of athletic performance through mathematical modeling, computer simulation and measurement.