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In existing installations, series-connected light switches or dimmers typically lack a neutral wire connection at the light switch lead-out. Hence, it is a challenging issue to design and power wall-mounted control terminals for smart LED lighting systems, which are not battery operated. Based on the results of [1, 2], this paper addresses the described problem and demonstrates an advanced control...
The paper discusses the design process of a full programmable logic controller implemented by means of FPGA device. The PLC is compliant with EN 61131-3 standard. It is equipped with a programmer that allows to transfer a program to the program memory of the controller, and the I/O controller which allows the exchange of information with the outside world, i.e. the signal modules. Some interesting...
Industrial control systems (ICSs) are, at present, extremely vulnerable to cyber attack because they are homogenous and interconnected. Mitigating solutions are urgently required because systems breaches can feasibly lead to fatalities. In this paper we propose the deployment of permuted code onto Physically Unclonable Unique Processors in order to resist common cyber attacks. We present our proposal...
In order to meet the users' living demand, to provide them a better experience of smart home and further to improve their life equality, the authors design and implement the voice control system of smart home based on iOS. This system uses the classical MVC mode. The third party IFlyTek SDK is used to recognize the input voice. The developers create the project by Xcode, first using the storyboard...
Software-Defined Networking (SDN) is an emerging technology that controls network by using software. OpenFlow switches have predefined actions to be executed by the controller, but if any undefined actions need to be executed on given packets, they are transferred to the controller by the exception mechanism called Packet-In and processed there. When we execute undefined custom actions with Packet-In...
In this article the design procedure of a control system of a mobile robot with various modes of locomotion has been considered. The procedure is based on an embodied agent theory and focuses on the agent behaviours and transitions between them. The procedure was introduced to speed up and organize the whole controller development process. The effectiveness of the proposed approach is proved through...
This paper presents a relatively inexpensive, laboratory-based hardware system for the purposes of illustrating the concept of control in an undergraduate engineering laboratory. The proposed system links a simple fan and balance beam hardware to the Matlab and Simulink software on a standard PC using the Arduino Uno microcontroller board as the interface. This results in an affordable experimental...
This paper describes a transhumeral prosthesis prototype intended for the purpose of experimentally investigating design features and control strategies for the control of transhumeral prostheses. This paper specifically focuses on the design and performance characterization of a powered wrist rotator and powered elbow joint, in addition to the embedded system that controls them. In addition to outlining...
The paper deals with the verification of reconfigurable real-time systems to be validated by using the Object Constraint Language (abbrev, OCL). A reconfiguration scenario is assumed to be any adaptation of the execution to the system environment according to user requirements. Nevertheless, since several behaviors can be redundant from an execution to another, the use of OCL is insufficient to specify...
Designers of complex SoCs have to face the issue of tuning their design to achieve low power consumption without compromising performance. A set of complementary techniques at hardware level are able to reduce power consumption but most of these techniques impact system performance and behavior. At register transfer level, low power design flows are available. Unfortunately, equivalent design flows...
Modern digital designs are relentlessly growing in complexity, making their verification a daunting task. Verification and debugging are the bottleneck, accounting for up to 70% of the design cycle. Most automated debugging tools target failures in isolation and rely solely on the current version of a design's RTL. A recently developed methodology targets multiple failures simultaneously while leveraging...
This paper presents a detailed, systematic procedure for developing a Micro Aerial Vehicle (MAV), which is capable of autonomous flight in GPS-denied environments. This MAV is designed for a gross weight of 490 g and flight endurance of 8 minutes. The hardware structure (including the sensors, processors, and mechanical components), the software architecture (including operating system, navigation,...
A major step in the process of designing the controllers of a distribution systems is to test the performance of the controller devices. Testing the controllers with a traditional hardware-based real-time simulator is an effective approach for validation of the controllers. However, it is very costly. This paper introduces a software-based real-time simulator, which is a simple but useful tool for...
Rehabilitative treatment is beneficial to recover the function of joints, and up to now this treatment is mostly carried on under the supervision of nursing staff. To solve the problem caused by overload work for the nurse, a rehabilitation device of high stability and reliability is presented. The mechanical object of the control system is introduced first, and then the structure of the control system...
In order to improve hardware utilization, a novel Protection & Control Architecture based on virtual devices in digital substation is proposed in this paper. An “all-in-one” monitoring and control device is developed to support new architecture. Based on a Cloud Computing platform, the protection and control functions are built as virtual devices. Based on virtual protection & control, the...
High power electronics converters, recently, have been composed of modular building blocks, Power Electronics Building Blocks (PEBB), to gain advantage for modularity, scalability, power density, and reliability. In addition to their hardware configuration, the control system of those converters should also be modular for scalability. In this paper, a hierarchical control system architecture together...
This paper describes the qualification test guide (QTG) items made for a small, single engine, and commercial aircraft during the evaluation of simulator by any regulatory authority before the simulator can be used to train the student pilots. The test items described here are listed in Federal Aviation Regulations part 60. Out of those, the static control check tests are explained in detail since...
The European XFEL project is a free electron linear particle accelerator located in Hamburg, Germany, currently being developed by DESY and to be launched later this year. The particle accelerator is controlled by RF control system, built as a chain of RF stations bound to cryomodules across the tunnel. Each RF station has a set of additional devices, that are used to control particular parts of the...
Software-defined network (SDN) is deemed to enable more dynamic management of data center networks that promptly respond to network events with changes in network policies. Although the SDN controller architecture is increasingly optimized for swift policy updates, the data plane, especially the prevailing TCAM-based flow tables on physical SDN switches, remains unoptimized for fast rule updates,...
SDN research is moving towards enabling the delegation of parts of control functions to the network elements. In recent work we analytically evaluated the benefit in terms of ARP data traffic load reduction as well as control channel interaction reduction when delegating the generation of ARP replies. In this paper we describe the corresponding control program and network configuration to handle ARP...
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