The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents the development and national deployment of hydro-meteorological monitoring devices, termed as HydroMet Stations, for flood warning and monitoring applications. We describe various challenges encountered during the course of implementation particularly those related to transportation, local logistics, location, and security. We also discussed lessons learned such as the early involvement...
This article presents a real-time control system for an experimental model of a water distribution system. The hardware and software implementation follows the latest trends in IoT and proves that such an architecture can be used for real-time process control in distributed systems. The control of flow is implemented using a multiple-model control algorithm for the pumping station. A method which...
In recent years, the PM2.5 (particulate matter with a mean aerodynamic diameter of 2.5 micrometers or less) pollution has become a very serious problem in China. Currently, there are three types of monitoring approaches: government-led monitoring, Wireless Sensor Networks (WSN) approaches and Participatory Urban Sensing (PUS). There are three limitations in these state-of-the-art research approaches:...
Recently, attempts have been made to change the paradigm of existing plants by applying ICT to the manufacturing industry. It can be seen as an extension of factory automation, which used to automate production facilities and unmanned work in the past, but Smart Factory is an advanced model to predict and respond to the future situation. In this paper, we propose a controller that is optimized for...
Home Automation Systems have been continuously evolving in the past few years: some of the systems are focusing their attention on providing remote access and control of the system, while others are more focused on the interconnectivity of the devices and on integrating them into greater systems, like smart cities. In this paper we propose a hierarchical architecture for Home Automation Systems, which...
In this paper, an online working condition monitoring system is designed to early warn environmental quality in manufacturing industry. It is very crucial to provide real time and accurate data for staffs, stakeholders and control center to monitor factory air quality at working place. By uploading the all collected data on internet, the environmental condition can be monitored in real time by users...
This paper presents new approach for unobtrusive indoor fall detection by an IR thermal array sensor. Unlike existing methods that run fall detection at server and require high communication and processing rates, we perform fall detection within the sensor node by a computationally inexpensive algorithm that signals the server only when a fall occurs. Experiments with prototype design show that such...
We introduce the design, calibration, and validation of a wearable, wireless, and secure air quality monitoring sensor system that is integrated with a smartphone application and back-end server for realtime data collection. To this end, an Alphasense OPC-N2 optical air quality monitoring sensor was integrated with a wireless hardware platform and real-time smartphone application, which sent particulate...
In view of monitoring of water quality in Penaeus vannamei culture pond, this paper puts forward a method of two-level data fusion which is usually used to solve the problems of limited resources such as network energy, storage capacity and processing capacity of wireless sensor networks. The data transmitted from the sensor group distributed in the field can be processed and compressed to obtain...
The increasing number of vehicles on the road along with the mismanagement of available parking space leads to the parking related problems as well as increased traffic congestion in urban areas. Thus it is highly required to develop an automated smart parking management system that would help the driver to find out some suitable parking space for his/her vehicle very quickly. Although ample amount...
With the continuous progress of rural construction, the problem of rural drinking water pollution is increasingly prominent. In view of water pollution, a design of rural drinking water monitoring system based on wireless sensor networks is proposed that nodes take STM32 as the core chip and WLK01L39 as well as its peripheral circuits are used as wireless communication modules and Beidou S1216 is...
We derive a simple, closed, equation for the delay caused by random outages or downtimes that affect a node in a communications network. The model is an M/G/1 queue with nonexhaustive interruptions, in which the server goes on and off successively, at random times, no matter whether the current job is finished or not. The arrival process is Poisson; while the distributions of service and on/off times...
Wireless sensor networks (WSNs) are strongly useful to monitor physical and environmental conditions to provide realtime information for improving environment quality. However, deploying a WSN in a physical environment faces several critical challenges such as high energy consumption, and data loss.In this work, we have proposed a reliable and efficient environmental monitoring system in ponds using...
6LoWPAN networks involving wireless sensors consist of resource starving miniature sensor nodes. Since secured authentication of these resource-constrained sensors is one of the important considerations during communication, use of asymmetric key distribution scheme may not be the perfect choice to achieve secure authentication. Recent research shows that Lucky Thirteen attack has compromised Datagram...
Wildfires, often dubbed megafires, have in recent times increased in both frequency and scale, owing largely to human error as well as climate change. Due to their uncontrolled unpredictable rapid growth and behaviour, they can quickly become difficult to contain, leading to significant loss of lives, wildlife and property. It is therefore critical to tackle such fires in the early stages. This demands...
Recent advances in information communication technologies will yield new systems/devices for the visually impaired. To realize such systems/devices, location information is essential, especially for indoor application. This paper proposes an indoor location estimation method that uses cost-effective radio frequency nodes. The proposed method uses received signal strength values to estimate the distance...
Wireless video applications for Industrial Internet Of Things (IoT) are expanding into a multitude of new services. In the example of cloud processing for visual object detection, a camera is connected to the cloud via a local server and a data network, allowing the processing load to be handled in a distributed manner. This service model heavy taxes the data network with potentially unneeded traffic,...
Most wireless networks are specified as layer 2 (L2), or data link protocol. Recently, IoT and big data processing have promoted the use of wireless sensor networks to connect and send data to data center applications using the Internet. To do so, the implementation of an IP stack on the wireless node, or the gateway of the IP and wireless L2 network, has been proposed. Both approaches are developed...
Current Nyiragongo Volcano observatory systems yield poor monitoring quality due to unpredictable dynamics of volcanic activities and limited sensing capability of existing sensors (seismometers, acoustic microphones, GPS, tilt-meter, optical thermal, and gas flux).The sensor node has limited processing capacity and memory. So if some tasks from the sensor nodes can be uploaded to the server of cloud...
Wireless sensor networks are often placed in hostile and unattended areas, making the nodes exposed to many attacks. Node capture is one of the prominent attack in such networks. Whenever, a node is captured, its keys have to be revoked from the network by means of rekeying. We aim to optimize the problem of key revocation and rekeying by reducing the communication and computation overhead. An attack...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.