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Under the 10th Malaysia Plan, National Defense University of Malaysia (NDUM) has developed a new naval architecture laboratory to suit the requirement as a niche and boutique university for new knowledge and competencies in defense related disciplines. This paper describes the optimal specification and design of a wave test flume in a confined space. The wave maker was specified with the constraints...
Connection setup in software-defined networks (SDN) requires considerable amounts of processing, communication, and memory resources. Attackers can target SDN controllers with simple attacks to cause denial of service. We proposed a defense mechanism based on a proof-of-work protocol. The key characteristics of this protocol, namely its one-way operation, its requirement for freshness in proofs of...
Cyber-Physical Systems (CPS) are yielding novel problems and solutions for security researchers. CPSs connect computerized controllers and human supervisors with physical systems used in the energy, transportation, water, manufacturing, and other sectors. Recent attacks against CPS have prompted unprecedented investigation into new threats and mitigations against CPSs. There are motivating examples...
This paper looks into the intelligent control system design using fuzzy logic for Multiple Input Multiple Output (MIMO) systems, with a case study application of a depyrogenation tunnel [1]. Depyrogenation tunnels are widely and specifically used in pharmaceutical filling process for removing pyrogens adhere to containers (sterilization treatment of containers mainly). As part of the research process...
In order to detect the nonlinear characteristics (flow hysteresis) of aviation fuel valves and to improve the accuracy and efficiency of fuel valve performance test, a computer aided fuel valve automatic test system is designed. The test system mainly consists of industrial control computer, data acquisition card, signal conditioning circuit and test software developed on the LabVIEW virtual instrument...
The presence of delays makes system analysis and control design much more complicated. Delays deteriorate the control performance and could destabilize the overall system in the theory of discrete-time signals and dynamic systems. Whenever a computer is used in measurement, signal processing or control applications, the data as seen from the computer and systems involved are naturally discrete-time...
In this paper, a generalized Radio Frequency Identification (RFID) control using posture effect on Ultra High Frequency (UHF) RFID tag detection is proposed. The idea is based on the polarization characteristic of passive tag antenna. When it is placed in horizontal and vertical orientation, the Received Signal Strength Indication (RSSI) measured by the reader antenna will be distinct. Based on the...
The train driver controller is a main electric appliance for the train speed controlling and braking. Its reliability relates directly with the driving safety. The existing life-span test system of the train driver controller can only detect the mechanical life-span. A new life-span test system is developed which can detect not only the mechanical life-span, but also the life-span of the electrical...
The main goal of this paper is to present a simple and inexpensive software solution for remote management of PTZ camera systems EVI-D70CP. Performed analysis demonstrates the technological solution for control of multiple cameras within lecture room or laboratory. Paper deals with the differences in the various serial communication methods, various functionalities of camera systems, followed by a...
Reversible logic is one of the emerging computational methodologies which assures zero power dissipation through theoretical laws of thermodynamics. It has received significant interest in application on quantum computing, nanotechnologies and low power computing devices. In this work, we present a reversible logic implementation for Binary Coded Decimal (BCD) adder which is designed to obtain lowest...
This paper describes the application of a low-cost quadrotor testbed in real outdoor flights. Along the text it is discussed how to design a flight control system, including methods for fusing out-of-sequence sensor measurements, for modelling the aircraft and for designing a high level flight controller. To validate the proposed system, some flights were performed, executing the specific tasks of...
In the article the question of building information control system with fault-tolerant architecture is considered. It is proposed to ensure fault tolerance by combining methods of performance reserve and distributed(decentralized) dispatching. An example of the reconfiguration of the system built on the basis of the proposed architecture is also considered.
In this paper, the model of mathematical pendulum is formulated as a non-linear dynamic system. The equilibrium positions of the dynamic system are obtained as a solution of corresponding problem of multiprogram stabilization. This solution is eventually formalized in a form of Hermit's polynomial.
Maintaining vertical position of an inverted pendulum is a simple balancing task, which is widely used to study human control behavior. Yet, much about this behavior remains poorly understood even in the context of simple virtual tasks. The purpose of this study was to investigate whether the control behavior of human operators depends on the type of visual feedback from the controlled system. We...
For the application of deep-sea equipment in Marine scientific research and in the field of resources exploration, a kind of landing control technology used for deep-sea equipment was developed and implemented, and a principle prototype was also completed. The principle prototype takes STM32 processor as the core and combines with altimeter, inclinator and step motor. Then with the adoption of innovative...
This study aims to implement fuzzy logic controller using Mamdani and defuzzification method of Centroid, as a controller for train speed. Research methodology employed consists of Modeling, Design, Testing, and Analysis. At Modeling phase, the system is modeled utilizing transfer function model; at Design phase, the system with fuzzy logic controller is designed; at Testing phase, system output is...
The concept of energy-efficient networking is beginning to become popular in the past few years, gaining increasing importance. Besides the widespread sensitivity to ecological issues, such interest also stems from economic needs, since both energy costs and electrical requirements of telecom providers and Internet Service Providers' infrastructures around the world show a continuously growing trend...
In order to meet the requirements of communications devices in respect of data processing, display control and other aspects, this paper, on the basis of Core Connect bus that IBM proposes, designs and realizes a shared storage type SOPC parallel system by taking advantage of Xilinx's FPGA chip XC4VFX60 embedded two PPC405 processor hard-cores, which effectively improves the data processing capability...
Congestion has been the major root cause for the loss of data during its transit. Many researchers have been working on how to control congestion in end-to-end communication network. Yet, much progress was not achieved and the result was unsatisfied. Fuzzy techniques were employed that use either delay or packet loss. Combination of these two parameters rarely exists. This paper considers Queuing...
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