Ad-hoc networked UAVs as Aerial Mesh Network for disaster management application and remote sensing: An approach

Author(s):  
Shopan Dey ◽  
Murshed Nawaz Kamal ◽  
Soumya Dutta ◽  
Abhishek Tiwari ◽  
Santanu Ray ◽  
...  
2020 ◽  
Author(s):  
Neelabhro Roy ◽  
Sauranil Debarshi ◽  
P.B. Sujit

<p>Communication breakdowns during natural disasters can significantly restrict disaster management operations. Furthermore, cellular networks may also be unreliable in such scenarios. Hence, establishing communication using alternative means is of importance in these scenarios. </p><p>In this paper, we propose a prototype system to establish communication using wireless mesh network, through the use of stationary and mobile ground nodes, and aerial nodes using unmanned aerial vehicles (UAVs). This network is ad hoc and establishes connectivity without the usage of a cellular network or internet. Our system provides a complete end to end architecture, where we deploy an android application on smartphones at the user-end, the ad hoc network comprising of stationary and mobile nodes, and a graphical user interface (GUI) at the base station that facilitates situational awareness. We use the Robot Operating System (ROS) as the middleware for message synchronization between the nodes as well for UAV control. We evaluate the system for different system configurations by using UAVs and a semi-autonomous car. Our experimental results show that the system could be indispensable in providing large scale connectivity.</p>


2019 ◽  
Author(s):  
Neelabhro Roy ◽  
Sauranil Debarshi ◽  
P.B. Sujit

Communication breakdowns during natural disasters can significantly restrict disaster management operations. Furthermore, the cellular networks may also be unreliable in these scenarios. Hence, establishing communication using alternative means is of importance in these scenarios. <br>In this paper, we propose a prototype system to establish communication (using wireless mesh network - WMN) through the use of stationary and mobile ground nodes, and aerial nodes using unmanned aerial vehicles (UAVs). This network is ad hoc and establishes connectivity without the use of a cellular network or internet. Our system provides a complete end to end architecture, where we deploy an android application on smart phones at the user-end, the ad hoc network comprising of stationary and mobile nodes, and a graphical user interface (GUI) at the base station that shows situational awareness. We use Robot Operating System (ROS) as the middleware for message synchronization and storage. We evaluate the system with three nodes for different system configurations by using UAV and a semi-autonomous car. Our experimental results show that the system could be indispensable in providing large scale connectivity.<br>


2020 ◽  
Author(s):  
Neelabhro Roy ◽  
Sauranil Debarshi ◽  
P.B. Sujit

<p>Communication breakdowns during natural disasters can significantly restrict disaster management operations. Furthermore, cellular networks may also be unreliable in such scenarios. Hence, establishing communication using alternative means is of importance in these scenarios. </p><p>In this paper, we propose a prototype system to establish communication using wireless mesh network, through the use of stationary and mobile ground nodes, and aerial nodes using unmanned aerial vehicles (UAVs). This network is ad hoc and establishes connectivity without the usage of a cellular network or internet. Our system provides a complete end to end architecture, where we deploy an android application on smartphones at the user-end, the ad hoc network comprising of stationary and mobile nodes, and a graphical user interface (GUI) at the base station that facilitates situational awareness. We use the Robot Operating System (ROS) as the middleware for message synchronization between the nodes as well for UAV control. We evaluate the system for different system configurations by using UAVs and a semi-autonomous car. Our experimental results show that the system could be indispensable in providing large scale connectivity.</p>


2021 ◽  
pp. 1-5
Author(s):  
Ole Kristian Fauchald

This chapter seeks to focus on ‘peacebuilding’ as a construct of peace among groups that have previously been in conflict. This calls for moving beyond peacemaking and conflict resolution to consider the longer-term efforts at establishing sustainable peace. Notwithstanding the longstanding efforts of UNEP’s Post-Conflict and Disaster Management Branch, there has been very limited development of international normative and institutional structures targeting the process of post-conflict sustainable peacebuilding. How far the current international environmental governance (IEG) regimes are responsive to the specific challenges to post-conflict situations? It seeks to briefly consider four key aspects of IEG regimes: (i) Ad- hoc and subject specific (ii) Incremental and facilitative (iii) Degree of reciprocity and (iv) Science-based.


Author(s):  
Michael Adeyeye Oshin ◽  
Nobaene Sehloho

With many different studies showing a growing demand for the development of indoor positioning systems, numerous positioning and tracking methods and tools are available for which can be used for mobile devices. Therefore, an interest is more on development of indoor positioning and tracking systems that are accurate and effective. Presented and proposed in this work, is an indoor positioning system. As opposed to an Ad-hoc Positioning System (APS), it uses a Wireless Mesh Network (WMN). The system makes use of an already existing Wi-Fi infrastructure technology. Moreover, the approach tests the positioning of a node with its neighbours in a mesh network using multi-hopping functionality. The positioning measurements used were the ICMP echos, RSSI and RTS/CTS requests and responses. The positioning method used was the trilateral technique, in combination with the idea of the fingerprinting method. Through research and experimentation, this study developed a system which shows potential as a positioning system with an error of about 2 m to 3 m. The hybridisation of the method proves an enhancement in the system though improvements are still required.


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