Articular Geometry Reconstruction for Knee Joint with a Wearable Compliant Device

Robotica ◽  
2019 ◽  
Vol 37 (12) ◽  
pp. 2104-2118 ◽  
Author(s):  
Jiajie Guo ◽  
Zihang Wang ◽  
Jianyong Fu ◽  
Kok-Meng Lee
Keyword(s):  
Knee Joint ◽  
Compliant Mechanism ◽  
Reconstruction Method ◽  
Human Machine Interaction ◽  
Boundary Constraints ◽  
Geometry Reconstruction ◽  
And Control ◽  
Simulated Analysis ◽  
Machine Interaction

SummaryNonlinear articular geometries of biological joints have contributed to highly agile and adaptable human-body motions. However, human–machine interaction could potentially distort natural human motions if the artificial mechanisms overload the articular surfaces and constrain biological joint kinematics. It is desired to better understand the deformable articular geometries of biological joints in vivo during movements for design and control of wearable robotics. An articular geometry reconstruction method is proposed to measure the effective articular profile with a wearable compliant device and illustrated with its application to knee-joint kinematic analysis. Regarding the joint articulation as boundary constraints for the compliant mechanism, the equivalent articular geometry is constructed from the beam deformations driven by knee motions, where the continuous deformations are estimated with strain data from the embedded sensors. Both simulated analysis and experimental validation are presented to justify the proposed method.

Identifying Human-Machine Interaction Problems in Continuous State Data

2016 ◽  
Vol 60 (1) ◽  
pp. 86-90
Author(s):  
Arik-Quang V. Dao ◽  
James R. Parkinson ◽  
Steven J. Landry
Keyword(s):  
Human Error ◽  
Pupil Diameter ◽  
Control Parameters ◽  
Human Machine Interaction ◽  
Continuous State ◽  
Operator Control ◽  
And Control ◽  
Main Effects ◽  
Machine Interaction ◽  
Aircraft Data

A set of studies has been focused on identifying “markers” in aircraft data that are indicative of human factors issues. In this paper we discuss an experiment that investigated if human error is predictable from the error observed from the combined human-machine system. Sixteen pilots flew simulated instrument approaches under varying levels of workload and control augmentation conditions. Operator control lag, gain, delay, and error extent were computed from aircraft lateral path errors. These parameters along with pupil diameter data were analyzed for differences across workload conditions. Main effects for workload were found with respect to all control parameters consistent with the experiment hypotheses, but the effects were very small. Operator delay in responding to errors appeared inversely correlated with workload. Statistically significant differences were also found with respect to error extent ad pupil diameter.

Achieving an Information System's Capability through C2

2015 ◽  
Vol 7 (1) ◽  
pp. 80-96
Author(s):  
Ana C. Calderon ◽  
Peter Johnson
Keyword(s):  
Autonomous Agents ◽  
Autonomous Systems ◽  
Academic Research ◽  
Command And Control ◽  
Human Machine Interaction ◽  
Military Research ◽  
Task Modeling ◽  
General Aspects ◽  
And Control ◽  
Machine Interaction

The authors present a literature review of command and control, linking sociological elements of academic research to military research in a novel way. They will discuss task modeling literature (seen in human machine interaction studies), general aspects of collectives and military and academic research on command and control, studies of autonomous systems and considerations of interactions between humans and autonomous agents. Based on the survey and associations between aspects from these fields, the authors compose a recommendation list for aspects crucial to building of information systems capable of achieving their true capability, through command and control.

scholarly journals All-in-One Self-Powered Human–Machine Interaction System for Wireless Remote Telemetry and Control of Intelligent Cars

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2711
Author(s):  
Tingting Zhang ◽  
Lingjie Xie ◽  
Junyan Li ◽  
Zheguan Huang ◽  
Hao Lei ◽  
...  
Keyword(s):  
Intelligent Control ◽  
Mechanical Energy ◽  
Triboelectric Nanogenerator ◽  
Stable Operation ◽  
Wearable Electronics ◽  
Human Machine Interaction ◽  
System A ◽  
Self Powered ◽  
And Control ◽  
Machine Interaction

The components in traditional human–machine interaction (HMI) systems are relatively independent, distributed and low-integrated, and the wearing experience is poor when the system adopts wearable electronics for intelligent control. The continuous and stable operation of every part always poses challenges for energy supply. In this work, a triboelectric technology-based all-in-one self-powered HMI system for wireless remote telemetry and the control of intelligent cars is proposed. The dual-network crosslinking hydrogel was synthesized and wrapped with functional layers to fabricate a stretchable fibrous triboelectric nanogenerator (SF-TENG) and a supercapacitor (SF-SC), respectively. A self-charging power unit containing woven SF-TENGs, SF-SCs, and a power management circuit was exploited to harvest mechanical energy from the human body and provided power for the whole system. A smart glove designed with five SF-TENGs on the dorsum of five fingers acts as a gesture sensor to generate signal permutations. The signals were processed by the microcontroller and then wirelessly transmitted to the intelligent car for remote telemetry and control. This work is of paramount potential for the application of various terminal devices in self-powered HMI systems with high integration for wearable electronics.

Cable-Driven Robots in Physical Rehabilitation

2021 ◽  
pp. 255-290
Author(s):  
Rogério Sales Gonçalves ◽  
Thiago Alves ◽  
Giuseppe Carbone ◽  
Marco Ceccarelli
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Physical Therapy ◽  
Physical Rehabilitation ◽  
Robot Design ◽  
Human Machine Interaction ◽  
Rehabilitation Robots ◽  
And Control ◽  
Machine Interaction ◽  
Robotic Tools

This chapter deals with cable-driven robots when applied in physical rehabilitation. In general, neurorehabilitation is limited to physical therapy that is delivered by clinicians and potentially augmented by robotic tools to facilitate neurorehabilitation and to reduce the consequences of central nervous system injury. Among the robotic tools for rehabilitation can be considered the cable-driven manipulators. First, this chapter presents the upper and lower human limbs movements. The main rehabilitation robots are presented as exoskeletons and cable-driven manipulators. After, the cable-driven manipulators theory is introduced focusing on considerations for robot design in rehabilitation and control with safe human-machine interaction. Experimental examples with different cable-driven robot's structures are presented so that this chapter suggests that these structures can be used as a complement to conventional therapies and not as a substitute. Finally, this chapter presents the clinical evidence in cable-driven robots when applied in physical rehabilitation.

Cable-Driven Robots in Physical Rehabilitation

2020 ◽  
pp. 52-96
Author(s):  
Rogério Sales Gonçalves ◽  
Thiago Alves ◽  
Giuseppe Carbone ◽  
Marco Ceccarelli
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Physical Therapy ◽  
Physical Rehabilitation ◽  
Robot Design ◽  
Human Machine Interaction ◽  
Rehabilitation Robots ◽  
And Control ◽  
Machine Interaction ◽  
Robotic Tools

This chapter deals with cable-driven robots when applied in physical rehabilitation. In general, neurorehabilitation is limited to physical therapy that is delivered by clinicians and potentially augmented by robotic tools to facilitate neurorehabilitation and to reduce the consequences of central nervous system injury. Among the robotic tools for rehabilitation can be considered the cable-driven manipulators. First, this chapter presents the upper and lower human limbs movements. The main rehabilitation robots are presented as exoskeletons and cable-driven manipulators. After, the cable-driven manipulators theory is introduced focusing on considerations for robot design in rehabilitation and control with safe human-machine interaction. Experimental examples with different cable-driven robot's structures are presented so that this chapter suggests that these structures can be used as a complement to conventional therapies and not as a substitute. Finally, this chapter presents the clinical evidence in cable-driven robots when applied in physical rehabilitation.

Identification of Physical Parameters in a Robotized IPC Device Interacting with Human

2014 ◽  
Vol 490-491 ◽  
pp. 1729-1733 ◽  
Author(s):  
Carlo Ferraresi ◽  
Hamidreza Hajimirzaalian ◽  
Daniela Maffiodo
Keyword(s):  
Intermittent Pneumatic Compression ◽  
Physical Parameters ◽  
Human Machine Interaction ◽  
Sports Activity ◽  
Simple Method ◽  
Performance Recovery ◽  
Pneumatic Compression Devices ◽  
Definition Of ◽  
And Control ◽  
Machine Interaction

Intermittent Pneumatic Compression devices are widely used for various therapies concerning the cardio-circulatory or lymphatic system, and also for performance recovery in sports activity. The development and setup of such devices are mainly based on empirical procedures, while few researches adopt an engineering approach based on mathematical modeling and identification. In this approach, the most critical point is the definition of parameters concerning the human-machine interaction. This paper proposes an original and simple method to identify such parameters, which allows to describe in effective way the main dynamic characteristics, fundamental for a correct design and control of the device.

The Measurement and Control System of Agricultural Greenhouse Based on Network

2014 ◽  
Vol 926-930 ◽  
pp. 1488-1492
Author(s):  
Xiao Fang ◽  
Lin Chen ◽  
Hong Zhi Yin
Keyword(s):  
Control System ◽  
High Reliability ◽  
Carbon Dioxide Concentration ◽  
Network Control ◽  
Signal Acquisition ◽  
Human Machine Interaction ◽  
Measurement And Control System ◽  
And Control ◽  
Measurement And Control ◽  
Machine Interaction

A network measurement and control system based on STM32 is designed for the control of greenhouse temperature, humidity, carbon dioxide concentration, etc. ModbusRTU serial bus is used for managing the greenhouse environment instrumentation network and signal acquisition. The remote control of greenhouse is achieved by LWIP Ethernet and Modbus/TCP communication protocol, and the network control of multispan greenhouse is realized by them. MCGS(Monitorand Control Generated System) is used for the design of human machine interaction. The control system can reach producing requirements, high reliability, easy to operate and maintain.

Experimental Study of the Impact of Alisma plantago-aquatica Secretions on Pathogenic Bacteria

2014 ◽  
Vol 1 (3) ◽  
pp. 3-7
Author(s):  
O. Zhukorskyy ◽  
O. Hulay
Keyword(s):  
Pathogenic Bacteria ◽  
Initial Density ◽  
Biologically Active ◽  
Erysipelothrix Rhusiopathiae ◽  
Natural Focus ◽  
Test Species ◽  
Popula Tions ◽  
And Control ◽  
The Impact

Aim. To estimate the impact of in vivo secretions of water plantain (Alisma plantago-aquatica) on the popula- tions of pathogenic bacteria Erysipelothrix rhusiopathiae. Methods. The plants were isolated from their natural conditions, the roots were washed from the substrate residues and cultivated in laboratory conditions for 10 days to heal the damage. Then the water was changed; seven days later the selected samples were sterilized using fi lters with 0.2 μm pore diameter. The dilution of water plantain root diffusates in the experimental samples was 1:10–1:10,000. The initial density of E. rhusiopathiae bacteria populations was the same for both experimental and control samples. The estimation of the results was conducted 48 hours later. Results. When the dilution of root diffusates was 1:10, the density of erysipelothrixes in the experimental samples was 11.26 times higher than that of the control, on average, the dilution of 1:100 − 6.16 times higher, 1:1000 – 3.22 times higher, 1:10,000 – 1.81 times higher, respectively. Conclusions. The plants of A. plantago-aquatica species are capable of affecting the populations of E. rhusiopathiae pathogenic bacteria via the secretion of biologically active substances into the environment. The consequences of this interaction are positive for the abovementioned bacteria, which is demon- strated by the increase in the density of their populations in the experiment compared to the control. The intensity of the stimulating effect on the populations of E. rhusiopathiae in the root diffusates of A. plantago-aquatica is re- ciprocally dependent on the degree of their dilution. The investigated impact of water plantain on erysipelothrixes should be related to the topical type of biocenotic connections, the formation of which between the test species in the ecosystems might promote maintaining the potential of natural focus of rabies. Keywords: Alisma plantago-aquatica, in vivo secretions, Erysipelothrix rhusiopathiae, population density, topical type of connections.

Sign in / Sign up

Export Citation Format

Share Document