scholarly journals Situation awareness via Internet of things and in-network data processing

2017 ◽  
Vol 13 (1) ◽  
pp. 155014771668657 ◽  
Author(s):  
Johannes Ehala ◽  
Jaanus Kaugerand ◽  
Raido Pahtma ◽  
Sergei Astapov ◽  
Andri Riid ◽  
...  
Keyword(s):  
Signal Processing ◽  
Wireless Sensor Network ◽  
Internet Of Things ◽  
Data Fusion ◽  
Situation Awareness ◽  
Wireless Sensor ◽  
Network Data ◽  
Distributed Data ◽  
Sensor Signal ◽  
Data Validity

Computing on the edge of the Internet of things comprises among other tasks in-sensor signal processing and performing distributed data fusion and aggregation at network nodes. This poses a challenge to distributed sensor networks of low computing power devices that have to do complex fusion, aggregation and signal processing in situ. One of the difficulties lies in ensuring validity of data collected from heterogeneous sources. Ensuring data validity, for example, the temporal and spatial correctness of data, is crucial for correct in-network data fusion and aggregation. The article considers wireless sensor technology in military domain with the aim of improving situation awareness for military operations. Requirements for contemporary intelligence, surveillance and reconnaissance applications are explored and an experimental wireless sensor network, designed to enhance situation awareness to both in-the-field units and remote intelligence operatives, is described. The sensor nodes have the capability to perform in-sensor signal processing and distributed in-network data aggregation and fusion complying with edge computing paradigm. In-network data processing is supported by service-oriented middleware which facilitates run-time sensor discovery and tasking and ad hoc (re)configuration of the network links. The article describes two experiments demonstrating the ability of the wireless sensor network to meet intelligence, surveillance and reconnaissance requirements. The efficiency of distributed data fusion is evaluated and the importance and effect of establishing data validity is shown.

Research on Data Release and Location Monitoring Technology of Sensor Network Based on Internet of Things

2021 ◽  
Author(s):  
Bin Lin
Keyword(s):  
Wireless Sensor Network ◽  
Internet Of Things ◽  
Sensor Network ◽  
Low Cost ◽  
Wireless Sensor ◽  
The Internet ◽  
Network Data ◽  
Monitoring Technology ◽  
Software And Hardware ◽  
The Internet Of Things

The Internet of Things is another information technology revolution and industrial wave after computer, Internet and mobile communication. It is becoming a key foundation and an important engine for the green, intelligent and sustainable development of economic society. The new networked intelligent production mode characterized by the integration innovation of the Internet of Things is shaping the core competitiveness of the future manufacturing industry. The application of sensor network data positioning and monitoring technology based on the Internet of Things in industry, power and other industries is a hot field for the development of the Internet of Things. Sensor network processing and industrial applications are becoming increasingly complex, and new features have appeared in the sensor network scale and infrastructure in these fields. Therefore, the Internet of Things perception data processing has become a research hotspot in the deep integration process between industry and the Internet of Things. This paper deeply analyzes and summarizes the characteristics of sensor network perception data under the new trend of the Internet of Things as well as the research on location monitoring technology, and makes in-depth exploration from the release and location monitoring of sensor network perception data of the Internet of Things. Sensor network technology integrated sensor technology, micro-electromechanical system technology, wireless communication technology, embedded computing technology and distributed information processing technology in one, with easy layout, easy control, low power consumption, flexible communication, low cost and other characteristics. Therefore, based on the release and location monitoring technologies of sensor network data based on the Internet of Things in different applications, this paper studies the corresponding networking technologies, energy management, data management and fusion methods. Standardization system in wireless sensor network low cost, and convenient data management needs, design the iot oriented middleware, and develops the software and hardware system, the application demonstration, the results show that the design of wireless sensor network based on iot data monitoring and positioning technology is better meet the application requirements, fine convenient integration of software and hardware, and standardized requirements and suitable for promotion.

scholarly journals An Internet of Things Wireless Sensor Network Data Exchange Model Based on Hierarchical Address Automatic Configuration and Header Compression Encoding Strategy

2017 ◽  
Vol 13 (07) ◽  
pp. 140 ◽  
Author(s):  
Yuankun Yang ◽  
Yongqing Ji
Keyword(s):  
Energy Consumption ◽  
Wireless Sensor Network ◽  
Internet Of Things ◽  
Real Time ◽  
Sensor Network ◽  
Data Exchange ◽  
Wireless Sensor ◽  
The Internet ◽  
Network Data ◽  
Sink Node

<p><span style="font-size: medium;"><span style="font-family: 宋体;">To explore the wireless sensor network data exchange model, an addressing strategy is applied to the Internet of Things, and the real-time communication between the underlying wireless sensor network and the Internet based on the IEEE 802.15.4 protocol is realized. In addition, Hierarchical address auto configuration strategy is adopted. First of all, inside the bottom network, it allows nodes to use link local address derived by 16-bit short address for data packet transmission. Secondly, Sink node in each underlying network accesses to the global routing prefix through the upper IP router, and combined with interface identifier, it forms Sink node global address, and realizes wireless sensor network and Internet data exchange. The research results show that the strategy has certain superiority in network cost, throughput, energy consumption and other performances. In summary, the proposed addressing strategy has the characteristics of effectively integrating heterogeneous networks, reducing system energy consumption, increasing network throughput and ensuring real-time system performance for the future Internet of things.</span></span></p>

scholarly journals Distributed signal processing and data fusion methods for large scale wireless sensor network applications

2014 ◽  
Author(s):  
Δημήτριος Μανατάκης
Keyword(s):  
Signal Processing ◽  
Wireless Sensor Network ◽  
Data Fusion ◽  
Sensor Network ◽  
Large Scale ◽  
Wireless Sensor ◽  
Network Applications ◽  
Distributed Signal Processing ◽  
Fusion Methods

Σε αυτή τη Διδακτορική Διατριβή μελετάμε το πρόβλημα της παρακολούθησης και πρόβλεψης της εξέλιξης συνεχών αντικειμένων (π.χ. καταστροφικά περιβαλλοντικά φαινόμενα που διαχέονται) με τη χρήση Ασυρμάτων Δικτύων Αισθητήρων (ΑΔΑ) ευρείας κλίμακας. Προτείνουμε μια ευέλικτη αλλά και πρακτική προσέγγιση με δύο κύρια συστατικά: α) Ασύγχρονο συνεργατικό αλγόριθμο ΑΔΑ που εκτιμά, χρησιμοποιώντας δυναμικά σχηματιζόμενες ομάδες από τρεις συνεργαζόμενους κόμβους, τα τοπικά χαρακτηριστικά της εξέλιξης (διεύθυνση, φορά και ταχύτητα) του μετώπου, καθώς και β) Αλγόριθμο που ανακατασκευάζει το συνολικό μέτωπο του συνεχούς αντικειμένου συνδυάζοντας την πληροφορία των τοπικών εκτιμήσεων. Επιπλέον, ο αλγόριθμος ανακατασκευής, εκμεταλλευόμενος την δυνατότητα εκτίμησης της αβεβαιότητα ως προς τα τοπικά χαρακτηριστικά εξέλιξης, μπορεί να προβλέπει και την πιθανότητα το κάθε σημείο της περιοχής να έχει καλυφθεί από το συνεχές αντικείμενο σε κάθε χρονική στιγμή. Μέσω πλήθους προσομοιώσεων επικυρώσαμε την ικανότητα του συνεργατικού αλγορίθμου να εκτιμά με ακρίβεια τα τοπικά χαρακτηριστικά εξέλιξης πολύπλοκων συνεχών αντικειμένων, καθώς και την ευρωστία του σε αστοχίες των αισθητηρίων κόμβων κατά την επικοινωνία τους αλλά και λόγω της πιθανής ολοσχερούς καταστροφής τους. Τέλος, παρουσιάζουμε τη δυνατότητα του αλγορίθμου ανακατασκευής να παρακολουθεί με ακρίβεια την εξέλιξη μετώπων συνεχών αντικειμένων με πολύπλοκα σχήματα, χρησιμοποιώντας σχετικά μικρό αριθμό τοπικών εκτιμήσεων στις οποίες μπορεί να έχει υπεισέλθει και σημαντικό σφάλμα.

Sign in / Sign up

Export Citation Format

Share Document