This paper presents an overview on the possibilities of interior noise reduction for monorail sys... more This paper presents an overview on the possibilities of interior noise reduction for monorail system using passive means. It was found that the current existing noise level could further be mitigated by using passive means. Thus, nine samples out of three materials were subjected for noise test and the performance of each sample was observed. It was found that all of these samples have proved to reduce a significant amount of noise at low and high frequencies, even though the amount reduced, differs from one sample to another. It is also been noticed that this reductions were dominated by means of absorption for some samples such as those from rubber material, and it was dominated by means of reflection for some others such as those from aluminum composite and paper composite. Moreover, from the acoustic properties of each material, the whereabouts to install every material is proposed. It was suggested that, the rubber material should be installed on the upper floor of the monorail, while the paper composite should be installed under the floor, and the aluminum composite should be installed at the outer parts from the monorail such as the apron door, ceiling, etc. However, despite the promising potentials of these materials to reduce noise, there were few uncertainties with some samples at certain frequency. For example, samples from aluminum composite could not reduce noise at 1250 Hz, which denotes that it is not a good practice to use this material at that frequency. In terms of ranking, samples from rubber material reduced the largest amount followed by paper composite samples, and aluminum composite samples held the least position with an average of 26.46%, 24.69% and 16.05% respectively as for the third sample in every material.
ABSTRACT The problem of robot localization consists of answering the question Where am I? From a ... more ABSTRACT The problem of robot localization consists of answering the question Where am I? From a robot's point of view, this means the robot has to find out its location relative to the environment. When we talk about location, pose, or position we mean the x and y coordinates and heading direction θ of a robot in a global coordinate system. Using GPS for indoor application has a problem of signal blockage and poor accuracy even for outdoor applications. Ages ago ultrasonic has been used as replacement of GPS used for outdoor applications. This paper presents a review of ultrasonic GPS systems for indoor mobile robot positioning. Different system of using ultrasonic to build indoor GPS will be stated here with advantages and disadvantages of every one of them and ability of localizing single or multi-robot at the same time. This paper can be used as a quick reference for researchers interested in field of ultrasonic in robot positioning also, proposed system for indoor GPS discussed.
Radio Frequency Identification (RFID) is a wireless technology used for real time identification ... more Radio Frequency Identification (RFID) is a wireless technology used for real time identification and data capture of items. It replaces the traditional barcode at retail shop, warehousing, logistics and supply chain management etc. The basic requirements for deploying RFID network are to know the number of readers needed, location of the readers and the efficient power setting for each reader. The optimal solution of RFID network planning problems can be achieved by the implementation of newly developed Multi-Colony Global Particle Swarm Optimization (MC-GPSO) algorithm, which computes objective functions scientifically. However owing to the limited transmission range of RFID reader, it can track and identify items within specified range only. A novel approach to integrate RFID network planning with XBee wireless mesh network was developed. It could enhance the communication range and visibility of items identification and tracking activity faster and accurate. It also increases the tracking activity of multiple items as compared to existing barcode technology. RFID system is able to reduce the product loss or shrinkage and bullwhip effect resulting to reduce the overall cost. It also reduces the time of data transfer in global network.
ABSTRACT This paper presents design and control architecture of a small mobile robot with hybrid ... more ABSTRACT This paper presents design and control architecture of a small mobile robot with hybrid locomotion system. It consist the combination of wheel and track type motion system resulting as a hybrid mechanism. The wheel locomotion system helps the robot to move on flat surface or path platform with high velocity, high manoeuvrability at low energy consumption. The track system is designed for rough and unstructured path, where robot need to cross irregular surface with high stability. This system works on interchangeable locomotion phenomena by means of track tensioner unit (TTU). The TTU helps the loading and unloading of track system by means of rack and pinion mechanism. This design of small hybrid mobile robot is improves robot applications and also enhance its flexibilty, verstality to work in multi type of terrains.
ABSTRACT Robots are widely used nowadays in industries, commercial and domestic purpose for the c... more ABSTRACT Robots are widely used nowadays in industries, commercial and domestic purpose for the completion of task in shortest time interval and accurate operation. In the design of a mobile robot, the main mechanical area on focus is the locomotion mechanism. The locomotion mechanism consideration would include the mobile robot flexibility, versatility and efficiency to complete the multi tasks in different environments, indoor and outdoor. This comparative study was focused on the mobile robot mobility systems between wheeled and tracked. This paper highlights the effects on mechanical design, velocity, energy and flexibility of each mobility system. A hybrid system was suggested depending on mechanical design, energy consumption and flexibility.
The fast development of RFID technology having challenging issues of the optimal deployment of RF... more The fast development of RFID technology having challenging issues of the optimal deployment of RFID network are tags coverage, interference, economic efficiency and load balance. In this paper the novel approach of Multi-Colony Global Particle Swarm Optimization (MC-GPSO) algorithm was used to deploy minimum number of reader which covers all tags with minimum interference effect in large scale basis. The main aim of this algorithm is to divide the swarm in to multi-colony for achieving the optimal results as compared to the basic PSO. Simulation results show the optimal solution of RFID Network Planning (RNP).
Nowadays, product manufacturers and consumers started to be more concerned about the environment.... more Nowadays, product manufacturers and consumers started to be more concerned about the environment. For that reason, manufacturers started to accept used product from the consumer community in order to recycle, remanufacture, resale, refurbished or for disposal. This activity is known as Reverse Logistics. Although Reverse Logistics can be considered as an environmentally friendly activity, some manufacturers have some reservation based on some drawbacks for example difficulty in forecasting product returns, complex product identification process and returns management. An Automated Product Identification System is proposed as a substitute to manual identification method to identify product returns. Radio Frequency Identification (RFID) technology is used as a data storing mechanism for recyclable products. All value added activities are 'recorded' in the RFID tags mounted on the product. Once the product enters the Reverse Logistics chain, Reverse Logistics operators can retr...
This paper presents an overview on the possibilities of interior noise reduction for monorail sys... more This paper presents an overview on the possibilities of interior noise reduction for monorail system using passive means. It was found that the current existing noise level could further be mitigated by using passive means. Thus, nine samples out of three materials were subjected for noise test and the performance of each sample was observed. It was found that all of these samples have proved to reduce a significant amount of noise at low and high frequencies, even though the amount reduced, differs from one sample to another. It is also been noticed that this reductions were dominated by means of absorption for some samples such as those from rubber material, and it was dominated by means of reflection for some others such as those from aluminum composite and paper composite. Moreover, from the acoustic properties of each material, the whereabouts to install every material is proposed. It was suggested that, the rubber material should be installed on the upper floor of the monorail, while the paper composite should be installed under the floor, and the aluminum composite should be installed at the outer parts from the monorail such as the apron door, ceiling, etc. However, despite the promising potentials of these materials to reduce noise, there were few uncertainties with some samples at certain frequency. For example, samples from aluminum composite could not reduce noise at 1250 Hz, which denotes that it is not a good practice to use this material at that frequency. In terms of ranking, samples from rubber material reduced the largest amount followed by paper composite samples, and aluminum composite samples held the least position with an average of 26.46%, 24.69% and 16.05% respectively as for the third sample in every material.
ABSTRACT The problem of robot localization consists of answering the question Where am I? From a ... more ABSTRACT The problem of robot localization consists of answering the question Where am I? From a robot's point of view, this means the robot has to find out its location relative to the environment. When we talk about location, pose, or position we mean the x and y coordinates and heading direction θ of a robot in a global coordinate system. Using GPS for indoor application has a problem of signal blockage and poor accuracy even for outdoor applications. Ages ago ultrasonic has been used as replacement of GPS used for outdoor applications. This paper presents a review of ultrasonic GPS systems for indoor mobile robot positioning. Different system of using ultrasonic to build indoor GPS will be stated here with advantages and disadvantages of every one of them and ability of localizing single or multi-robot at the same time. This paper can be used as a quick reference for researchers interested in field of ultrasonic in robot positioning also, proposed system for indoor GPS discussed.
Radio Frequency Identification (RFID) is a wireless technology used for real time identification ... more Radio Frequency Identification (RFID) is a wireless technology used for real time identification and data capture of items. It replaces the traditional barcode at retail shop, warehousing, logistics and supply chain management etc. The basic requirements for deploying RFID network are to know the number of readers needed, location of the readers and the efficient power setting for each reader. The optimal solution of RFID network planning problems can be achieved by the implementation of newly developed Multi-Colony Global Particle Swarm Optimization (MC-GPSO) algorithm, which computes objective functions scientifically. However owing to the limited transmission range of RFID reader, it can track and identify items within specified range only. A novel approach to integrate RFID network planning with XBee wireless mesh network was developed. It could enhance the communication range and visibility of items identification and tracking activity faster and accurate. It also increases the tracking activity of multiple items as compared to existing barcode technology. RFID system is able to reduce the product loss or shrinkage and bullwhip effect resulting to reduce the overall cost. It also reduces the time of data transfer in global network.
ABSTRACT This paper presents design and control architecture of a small mobile robot with hybrid ... more ABSTRACT This paper presents design and control architecture of a small mobile robot with hybrid locomotion system. It consist the combination of wheel and track type motion system resulting as a hybrid mechanism. The wheel locomotion system helps the robot to move on flat surface or path platform with high velocity, high manoeuvrability at low energy consumption. The track system is designed for rough and unstructured path, where robot need to cross irregular surface with high stability. This system works on interchangeable locomotion phenomena by means of track tensioner unit (TTU). The TTU helps the loading and unloading of track system by means of rack and pinion mechanism. This design of small hybrid mobile robot is improves robot applications and also enhance its flexibilty, verstality to work in multi type of terrains.
ABSTRACT Robots are widely used nowadays in industries, commercial and domestic purpose for the c... more ABSTRACT Robots are widely used nowadays in industries, commercial and domestic purpose for the completion of task in shortest time interval and accurate operation. In the design of a mobile robot, the main mechanical area on focus is the locomotion mechanism. The locomotion mechanism consideration would include the mobile robot flexibility, versatility and efficiency to complete the multi tasks in different environments, indoor and outdoor. This comparative study was focused on the mobile robot mobility systems between wheeled and tracked. This paper highlights the effects on mechanical design, velocity, energy and flexibility of each mobility system. A hybrid system was suggested depending on mechanical design, energy consumption and flexibility.
The fast development of RFID technology having challenging issues of the optimal deployment of RF... more The fast development of RFID technology having challenging issues of the optimal deployment of RFID network are tags coverage, interference, economic efficiency and load balance. In this paper the novel approach of Multi-Colony Global Particle Swarm Optimization (MC-GPSO) algorithm was used to deploy minimum number of reader which covers all tags with minimum interference effect in large scale basis. The main aim of this algorithm is to divide the swarm in to multi-colony for achieving the optimal results as compared to the basic PSO. Simulation results show the optimal solution of RFID Network Planning (RNP).
Nowadays, product manufacturers and consumers started to be more concerned about the environment.... more Nowadays, product manufacturers and consumers started to be more concerned about the environment. For that reason, manufacturers started to accept used product from the consumer community in order to recycle, remanufacture, resale, refurbished or for disposal. This activity is known as Reverse Logistics. Although Reverse Logistics can be considered as an environmentally friendly activity, some manufacturers have some reservation based on some drawbacks for example difficulty in forecasting product returns, complex product identification process and returns management. An Automated Product Identification System is proposed as a substitute to manual identification method to identify product returns. Radio Frequency Identification (RFID) technology is used as a data storing mechanism for recyclable products. All value added activities are 'recorded' in the RFID tags mounted on the product. Once the product enters the Reverse Logistics chain, Reverse Logistics operators can retr...
Uploads