A training model of an automated storage and retrieval system (AS/RS) with customized warehouse management system (WMS)

AS/RS is a key industrial automation system that has drastically reduced the workforce needed to run a warehouse. Via a computer-controlled system, many intensive labour jobs are taken over by the system, including tediously moving and sorting heavy load from the minute of receving until shipping to customers, intensive paperwork to record goods receiving and order receipts. Somehow, in real business, the system is always complex in the perspective of engineering considerations, depending on the nature of the business, tending to upgrading and modification from time to time. It is desirable that the engineering training curve would provide an engineer perspective in industry design concepts and contemporary teclmologies to the students, not in the operator prospective. This project is intended to develop a training model of AS/RS for the engineering students. The learning curves are provided through three levels in the system integration. The device level illustrates basic input and output devices that are carefully choosen. The controller level processes all input information from the input devices and host computer. The supervisory level implements graphic user interface for system monitoring and control for the operator. The training model also emphasizes in three design concepts, flexibility, expand ability and modularity. Flexibility will allow a broad spectrum of application environments and extend application life. Expandability will allow application in areas not yet defined. Modularity will enhance modification and maintenance

三陸地域における観光の地域経済への波及効果のための産業連関表の作成

岩手県立大

A mechatronic system for achieving optimum alignment of lower limb prosthesis

Misalignment in the lower limb prosthesis can cause great discomfort in the stumpsocket interface and disturbance to gait function. In the long run, it could deteriorate the musculoskeletal system. In practice, the assessment still depends heavily on the verbal feedback of an amputee and experiences of a prosthetist. Moreover it is inconsistent amongst the prosthetists. Prosthetic alignment involves the adjustment of the prosthetic components relative to the gait quality. Some methods were proposed, including symmetry index, variation in a step-to-step transition, stability within the zone of integrated balance, matching roll-over shape (ROS) to an ideal ROS and etc. It is not clear if the optimum alignment could be achieved. These methods exhibit a few limitations, i.e. limited use of gait variables in a single comparison and non-uniform results when different gait variables are applied. There is a need to provide an objective assessment method that processes high dimensional gait variables and presents them in a simple form. In addition, it could be impractical and expensive clinically to spend excessive time on a patient. An ambulatory gait measurement system could achieve this objective to a certain extent. This research investigates a potential engineering solution that is able to provide an assistive and objective assessment of the lower limb prosthetic alignment that provides optimal gait quality. The effort includes a development of a low-cost ambulatory gait measurement system which could be reliably used during indoor and outdoor trials. Human walking trials using the designed ambulatory system are designed and performed to justify the proposed solution. A novel gait analysis method using Principle Component Analysis and Self-Organizing Feature Map is proposed to process high dimensional gait data into a simple plot and a decision guide. The proposed methodology could help to collect sufficient gait data during indoor and outdoor gaits and could provide an objective gait assessment during the application of lower limb prosthetic alignments

Radiation Detector Circuit

This thesis is focused on building a radiation detector circuit along with the Arduino Uno microcontroller. Nowadays, radiation is commonly being used in several fields such as medical field and communication field. However, radiation is still harmful to all of us if it is in a large dose. Therefore, a radiation detector circuit is built in order to detect the existence of radiation. In this project, AM-241 is used as the radiation source. AM-241 emits mainly alpha radiation and the SiC photodiode is used as the radiation sensor. To deal with this project, a transimpedance amplifier circuit is built as the interface between Arduino Uno microcontroller and the SiC photodiode. Then, the output voltage is fed into any analog pin of the Arduino Uno microcontroller. The Arduino Uno microcontroller is programmed to calculate the values like the output voltage and the current passing through the SiC photodiode. All these values are displayed on the LCD and also compared to the values measured by using the multimeter. The difference between both has been analyzed and there is almost no difference. The performances of the SiC photodiode and the transimpedance amplifier circuit have also been analyzed. The possible reasons of why Am-241 alpha radiation is undetectable by the SiC photodiode have been revealed. Yet, the main reason is that of the weak strength of the Am-241 alpha radiation