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This paper demonstrates an IPv6 self-powered bidirectional wireless network system solution, compatible with indoor conditions, based on a IEEE 802.15.4/802.14.4e 2.4GHz radio (5.4mA Rx / 7.3mA Tx) and a 130nA quiescent current Power Management Unit (PMU). Other key elements are a 32bits Cortex M3 microcontroller and MEMs for sensors. This chipset enables self-powered sensors and actuators as well...
Industrial application of wireless sensor networks require timelines in exchanging messages among nodes. IEEE 802.15.4 is a standard to address the need for low-rate low-power low-cost wireless networking. In wired connection, the components such as actuators or sensors provides high performance besides wired links consist of many mechanical problems. Hence to achieve low latency, high performance...
Wireless Industrial Automation Networks may comprise large number of sensors and actuators which are densely deployed in various parts of an industry to monitor and control physical parameters like pressure, temperature, humidity, flow, level, density etc.by utilizing IEEE 802.15.4 standard. Typically, a sensor node consists of sensing subsystem for data acquisition, processing subsystem for data...
In this paper we present a comparative study on the use on event-based strategies for sampling and control of the level of a single tank. In the study a time-based PI control strategy is compared and contrasted with five combinations of pure event-based control approaches. In the event-based control strategies, the triggering of an event is the indicator to send a sample from the sensor or to calculate...
The cloud of sensors (CoS) paradigm emerged from the broader concept of the cloud of things. CoS infrastructures are built on the concept of wireless sensor and actuator network (WSAN) virtualization and have the potential to leverage the benefits of both cloud computing and WSANs. However, WSAN virtualization is still in its infancy within the CoS paradigm. Existing approaches are centralized CoS...
Wireless Sensor Network (WSN) is an emerging technology which has been employed recently in various applications such as healthcare systems, environmental monitoring, military and industrial applications. This is due to the easy deployment and (re)configuration of the sensor nodes in the environment. It also has the potential of being integrated into the distributed manufacturing systems particularly...
This paper proposes a novel architecture for a hierarchical Wireless Networked Control System (WNCS). It consists of three cascaded workcells each containing 30 sensors, 30 actuators and one controller. The wireless communication protocol used is IEEE 802.11g with multicasting. The hierarchy of the system is such that the lowest level is that of the sensors and actuators, the intermediate level is...
In this paper, we present an optimal monitoring and evacuation methodologies for pilgrims in Arafat area of Makkah with the aid of Wireless Sensor and Actuator Networks (WSAN). In addition to its significant impact, the proposed application has many challenges that need to be tackled. We highlight these challenges and provide a Rings overlay that efficiently contributes to monitoring the area and...
Wireless communication technologies for building automation (BA) systems are evolving towards native IP connectivity. More Industry Friendly and Native-IP Wireless Building Automation (IF-NIP WiBA) is needed to address the concerns of the entire value chain of the BA industry including the security, reliability, latency, power consumption, engineering process, and independency. In this paper, a hybrid...
In most of the industrial control system, there are wired sensors, wireless sensor and embedded devices are used which forms a heterogeneous programmable distributed system. To reconfigure devices each time user needs to develop a new code for node reconfiguration. It requires programming expertise. The Proposed system aims to create such a system that can be used to wirelessly reconfigure industrial...
Cooperation of sensors and actors is an important research field in WSAN. To improve the efficiency of WSAN, based on QPSO (Quantum-behaved Particle Swarm Optimization), this paper proposed a new coverage optimization strategy for actor deployment in WSAN. By adopting a number of particles independently searching for solution space, they can share the current global optimal value at a certain communication...
Nowadays the Robotic Ubiquitous Cognitive network (RUBICON) has raised great attentions in robotics area. In this paper we explore and first propose a timely identification method of RUBICON with erasure channels. Firstly, the complex cognitive network is simplified into a single close-loop communicating network for identification. Then inspired by the interactive cognitive method, we propose recursive...
Wireless sensor and actuator networks (WSANs) are required to achieve both energy-efficiency and low-latency in order to prolong the network lifetime while being able to quickly respond to intermittently-transmitted control commands. These two requirements are in general in a relationship of trade-off when each node operates with well-known duty-cycling modes: nodes need to make their radio interfaces...
In the Wireless Sensor and Actuator Network (WSAN) system, a sensor node must have the function to turn on the actuator in order to move or control an equipment besides monitoring the measured parameter. With the addition function to control the actuator, the WSAN system will have a form of closed loop system. This paper propose a WSAN system in which the sensor nodes and actuator nodes are combined...
Safety function response time is a metric for safety-critical automation systems defined in the IEC 61784-3-3 standard for single input and single output systems communicating over wired technologies. We propose a model to estimate the safety function response time for a multiple input and multiple output feedback control loop system communicating wirelessly over one of the modes defined in the IEEE...
Recent advances in wireless networking technology and proliferation of industrial wireless sensor have led to an increased interest in using wireless networks in NCSs. The main advantages of these Wireless Networked Control Systems (WNCSs) are the reconfigurability, easy commissioning and the installation in places where cabling is impossible. Despite these advantages, there are two main problems...
Wireless Sensor and Actuator Networks (WSANs) will play an essential role in the future Internet of Things. Wireless communication is an important enabler that provides ease of deployment and reduced installation costs but puts strong constraints on the used communication protocols regarding available bandwidth and reliability. WSANs based on 6LoWPAN allow to use IPv6 within most constrained wireless...
Various agricultural environment control systems using sensor data have recently been proposed and implemented. However, the high temperatures and humidity in agricultural environments prevent wireless sensor networks from collecting environmental data and operating long term with high reliability. Therefore, in this paper, we propose a greenhouse environment control system that can maintain a high...
Sensors always played a significant role on the industrial domain, since monitoring the current machine's process state is notoriously an advantage for shop-floor analysis, and consequently, to rapidly take action according to the production system demands [3, 6, 7, 8]. The I-RAMP3 European Project explores exactly these demands, and proposes new approaches to efficiently address some of the nowadays...
Wireless sensor and actuator networks (WSAN) for industrial applications usually have tighter requirements on dependability, synchronization, and real-time capability as compared applications in environmental monitoring or health care. For WSAN research and development, testbeds are a valuable tool as they enable controlled operation under conditions close to reality. In this contribution we present...
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