Small Hand-Closure Movements Used as a Response through Microswitch Technology by Persons with Multiple Disabilities and Minimal Motor Behavior

2007 ◽  
Vol 104 (3) ◽  
pp. 1027-1034 ◽  
Author(s):  
G. E. Lancioni ◽  
M. F. O'Reilly ◽  
N. N. Singh ◽  
J. Sigafoos ◽  
R. Didden ◽  
...  
Keyword(s):  
Control System ◽  
Motor Behavior ◽  
Multiple Disabilities ◽  
Electronic Control ◽  
Sensitive Layer ◽  
Electronic Control System ◽  
Small Hand ◽  
Microswitch Technology ◽  
The One ◽  
Palm Of The Hand

This study assessed small hand-closure movements as a potential response for microswitch activation with two participants with profound multiple disabilities of 5.2 and 20.6 yr. of age. The microswitch consisted of a two-membrane thin pad fixed to the palm of the hand and a control system. The outer membrane (the one facing the fingers) was a touch-sensitive layer; the inner membrane was activated if the participant applied a pressure of over 20 gm. The activation of either membrane triggered an electronic control system, which in turn activated one or more preferred stimuli for 6 sec. except in baseline phases. Each participant received an ABAB sequence, in which A represented baseline and B intervention phases, and a 1-mo. postintervention check. Analysis showed both participants increased their responding during the intervention phases and maintained that responding at the postintervention check. Implications of the findings are discussed.

Persons with Multiple Disabilities and Minimal Motor Behavior Using Small Forehead Movements and New Microswitch Technology to Control Environmental Stimuli

2007 ◽  
Vol 104 (3) ◽  
pp. 870-878 ◽  
Author(s):  
Giulio E. Lancioni ◽  
Mark F. O'Reilly ◽  
Nirbhay N. Singh ◽  
Jeff Sigafoos ◽  
Robert Didden ◽  
...  
Keyword(s):  
Control System ◽  
Motor Behavior ◽  
Multiple Disabilities ◽  
Successful Outcome ◽  
Electronic Control ◽  
Environmental Stimuli ◽  
Optic Sensor ◽  
Electronic Control System ◽  
Microswitch Technology ◽  
Profound Multiple Disabilities

Persons with multiple disabilities and minimal motor behavior may be unable to use available microswitch technology to control environmental stimuli. For these persons, one may need to rely on small motor expressions (as responses) and new, matching microswitch technology to ensure a successful outcome. In the present study, a small movement of the forehead skin was selected as the response for two participants (ages 6.5 and 14.2 years) with profound multiple disabilities. The microswitch technology included (a) an optic sensor, i.e., barcode reader, (b) a small tag with horizontal bars attached to the participants' forehead, and (c) an electronic control system which activated stimuli in relation to response occurrence. Movement of the forehead skin shifted up or down the tag with bars and this shifting, if greater than a preset limit and therefore recorded as a response, led to the activation of the control system. Each participant received an ABAB sequence, in which A represented baseline and B intervention phases, and a 6-wk. postintervention check. Analysis showed both participants increased their responding during the intervention phases and maintained that responding at the postintervention check. Implications of the findings were discussed.

scholarly journals Recoverable autonomous sonde for subglacial lake exploration: electronic control system design

2021 ◽  
pp. 1-17
Author(s):  
Shilin Peng ◽  
Xiao Jiang ◽  
Yongzhen Tang ◽  
Chong Li ◽  
Xiaodong Li ◽  
...  
Keyword(s):  
Control System ◽  
System Design ◽  
Video Recording ◽  
Control System Design ◽  
Electronic Control ◽  
High Definition ◽  
Water Conductivity ◽  
Camera System ◽  
Subglacial Lake ◽  
Electronic Control System

Abstract Subglacial lake exploration is of great interest to the science community. RECoverable Autonomous Sonde (RECAS) provides an exploration tool to measure and sample subglacial lake environments while the subglacial lake remains isolated from the glacier surface and atmosphere. This paper presents an electronic control system design of 200 m prototype of RECAS. The proposed electronic control system consists of a surface system, a downhole control system, and a power transfer and communication system. The downhole control system is the core element of RECAS, and is responsible for sonde status monitoring, sonde motion control, subglacial water sampling and in situ analysis. A custom RS485 temperature sensor was developed to cater for the limited size and depth requirements of the system. We adopted a humidity-based measurement to monitor for a housing leak. This condition is because standard leak detection monitoring of water conductivity may be inapplicable to pure ice in Antarctica. A water sampler control board was designed to control the samplers and monitor the on/off state. A high-definition camera system with built-in storage and self-heating ability was designed to perform the video recording in the subglacial lake. The proposed electronic control system is proven effective after a series of tests.

Design of Electronic Control System of High-Grade Textile Machine Based on CAN Bus

2012 ◽  
Vol 503-504 ◽  
pp. 1580-1583
Author(s):  
Hui Shan Yu ◽  
Shou Hui Zhang ◽  
Xiao Kua Ji ◽  
Xin Jian Liu
Keyword(s):  
Control System ◽  
Can Bus ◽  
Fast Response ◽  
High Grade ◽  
Electronic Control ◽  
Accuracy Control ◽  
Operating Personnel ◽  
Electronic Control System ◽  
Textile Machine ◽  
Low Efficiency

According to some problems of Low efficiency of the current domestic Textile Machine，Reliability is bad，The operating personnel labor intensity，A single product varieties and so on. Design of electronic control system of high-grade textile machine based on CAN Bus. The system with RENESAS SH7047 chips as the controller chip, Realize the all of the interrupt signal, sensor signal detection, fuzzy PID algorithm and main shaft encoder location, Through the CAN bus transmission way to complete accuracy control ac servo system. The actual operation commissioning proves the electronic control system has the fast response, and robust, more kinds of textile and so on.

scholarly journals Design and Test Evaluation of Full Authority Digital Electronic Control System for an Auxiliary Power Unit

2018 ◽  
Vol 36 (6) ◽  
pp. 1102-1107
Author(s):  
Kai Peng ◽  
Fan Yang ◽  
Ding Fan ◽  
Linfeng Gou ◽  
Hongliang Xiao ◽  
...  
Keyword(s):  
Control System ◽  
Power Unit ◽  
Digital Control ◽  
Electronic Control ◽  
Digital Control System ◽  
Control Laws ◽  
Auxiliary Power Unit ◽  
Auxiliary Power ◽  
Electronic Control System ◽  
Key Techniques

A helicopter auxiliary power unit (APU) is initially equipped with a hydro-mechanical control system (HMC). Because HMC's complex structure is difficult to be modified to realize sophisticated control algorithms and the APU is faced with the need for performance improvement, it is urgently necessary to carry out digital control modification of HMC. Based on the analysis of control laws of the original HMC and differences between HMC and digital control system, key techniques involved in the digital control system are studied, such as overall structure, control laws and fuel system based on electric fuel pump, and finally a full authority digital electronic control system (FADEC) is developed for APU. Functions, performances and key techniques of the FADEC system are evaluated on test rig, and the test results show functions of original control system are enhanced and performances of APU are improved more effectively under the control of the designed FADEC compared with the original HMC.

Enabling a Man with Multiple Disabilities and Limited Motor Behavior to Perform a Functional Task with Help of Microswitch Technology

2006 ◽  
Vol 103 (1) ◽  
pp. 83-88 ◽  
Author(s):  
M. Antonucci ◽  
G. E. Lancioni ◽  
M. F. O'Reilly ◽  
N. N. Singh ◽  
J. Sigafoos ◽  
...  
Keyword(s):  
Motor Behavior ◽  
Multiple Disabilities ◽  
Microswitch Technology ◽  
Functional Task

Hybrid Magnetic/Foil Bearing System for an Oil-Free Thrust Bearing Test Rig

2001 ◽  
Author(s):  
Thomas E. Russell ◽  
Crystal Heshmat ◽  
Dennis Locke
Keyword(s):  
Magnetic Material ◽  
Control System ◽  
Thrust Bearing ◽  
Material Selection ◽  
System Stability ◽  
Electronic Control ◽  
Test Rig ◽  
Foil Bearing ◽  
Electronic Control System ◽  
Foil Thrust Bearing

A novel, high-speed, high temperature, oil-free, foil thrust bearing test rig has been developed with a critical element being a double-acting, active magnetic thrust bearing. The magnetic thrust bearing is used to react against loads applied to the foil thrust bearing under test. The magnetic bearing has the capability of reacting against thrust loads of up to 2224 N (500 pounds) at speeds to 80,000 rpm, while the rotor is supported by foil journal bearings. Two issues that are especially challenging for this test rig are magnetic material selection and the electronic control system. The magnetic material selection is critical due to the high centrifugal stresses that occur at 80,000 rpm. The electronic control system must handle the non-linear variation in stiffness and damping that is seen by the magnetic thrust bearing as the foil thrust bearing is loaded, as well as maintain rotor system stability as the foil bearing is purposefully overloaded to the point of failure to discover maximum load and performance capabilities. This paper describes the design of the active magnetic thrust bearing, the material selection process, and the development of a digital signal processor based control system. Typical experimental data obtained during operation of the test rig will also be presented.

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