MQTT-Topics Management System for sharing of Open Data

Tantitharanukul, Nasi; Osathanunkul, Kitisak; Hantrakul, Kittikorn; Pramokchon, Part; Khoenkaw, Paween

doi:10.1109/icdamt.2017.7904935

Cited by 51 publications

(18 citation statements)

References 8 publications

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“…The different stakeholders interested in data or alarm events have a unique identifier and an associated Access Control List (ACL). On the other hand, the data model is constituted under a hierarchical structure, according to best practices for the MQTT protocol, and the subscription by content filtering is covered by wildcards [ 80 ]. A generic scheme of the technological components and data flow of the MQTT protocol is shown in Figure 3 .…”

Section: Resultsmentioning

confidence: 99%

Smart Vest for Respiratory Rate Monitoring of COPD Patients Based on Non-Contact Capacitive Sensing

Naranjo-Hernández

Talaminos-Barroso

Reina‐Tosina

et al. 2018

Sensors

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In this paper, a first approach to the design of a portable device for non-contact monitoring of respiratory rate by capacitive sensing is presented. The sensing system is integrated into a smart vest for an untethered, low-cost and comfortable breathing monitoring of Chronic Obstructive Pulmonary Disease (COPD) patients during the rest period between respiratory rehabilitation exercises at home. To provide an extensible solution to the remote monitoring using this sensor and other devices, the design and preliminary development of an e-Health platform based on the Internet of Medical Things (IoMT) paradigm is also presented. In order to validate the proposed solution, two quasi-experimental studies have been developed, comparing the estimations with respect to the golden standard. In a first study with healthy subjects, the mean value of the respiratory rate error, the standard deviation of the error and the correlation coefficient were 0.01 breaths per minute (bpm), 0.97 bpm and 0.995 (p < 0.00001), respectively. In a second study with COPD patients, the values were −0.14 bpm, 0.28 bpm and 0.9988 (p < 0.0000001), respectively. The results for the rest period show the technical and functional feasibility of the prototype and serve as a preliminary validation of the device for respiratory rate monitoring of patients with COPD.

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Section: Resultsmentioning

confidence: 99%

Smart Vest for Respiratory Rate Monitoring of COPD Patients Based on Non-Contact Capacitive Sensing

Naranjo-Hernández

Talaminos-Barroso

Reina‐Tosina

et al. 2018

Sensors

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“…In order to achieve the goal of collecting garden information in real time, the proposed solution, bearing in mind the WSN fashion, is composed of a set of hardware nodes, responsible for the collection of sensor data, which communicate among each other using LoRa [20] and with the server via MQTT [21] over WiFi. Then, a set of Software algorithms complements the network to store and analyze the collected data.…”

Section: Methodsmentioning

confidence: 99%

Water Management for Sustainable Irrigation Systems Using Internet-of-Things

Glória

Dionisio

Simões

et al. 2020

Sensors

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This paper introduces a new way of managing water in irrigation systems, which can be applied to gardens or agricultural fields, replacing human intervention with Wireless Sensor Networks. A typical irrigation system wastes on average 30% of the water used, due to poor management and configuration. This sustainable irrigation system allows a better efficiency in the process of irrigation that can lead to savings for the end user, not only monetary but also in natural resources, such as water and energy, leading to a more sustainable environment. The system can retrieve real time data and use them to determinate the correct amount of water to be used in a garden. With this solution, it is possible to save up to 34% of water when using sensor data from temperature, humidity and soil moisture, or up to 26% when using only temperature inputs. Besides a detailed system architecture, this paper includes a real case scenario implementation and results discussion.

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“…The users can pull streaming data according to the video transmission protocols such as HLS and RTMP by URL. For sensor data, the device sends the data to a topic through the MQTT-based [26] service or other protocols. After the client is authorized, it subscribes the corresponding topic (which can be represented by URL), and the server pushes the message under the topic to the client.…”

Section: System Model and Design A Resource And Policy Modelmentioning

confidence: 99%

Fabric-iot: A Blockchain-Based Access Control System in IoT

2020

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IoT devices have some special characteristics, such as mobility, limited performance, and distributed deployment, which makes it difficult for traditional centralized access control methods to support access control in current large-scale IoT environment. To address these challenges, this paper proposes an access control system in IoT named fabric-iot, which is based on Hyperledger Fabric blockchain framework and attributed based access control (ABAC). The system contains three kinds of smart contracts, which are Device Contract (DC), Policy Contract (PC), and Access Contract (AC). DC provides a method to store the URL of resource data produced by devices, and a method to query it. PC provides functions to manage ABAC policies for admin users. AC is the core program to implement an access control method for normal users. Combined with ABAC and blockchain technology, fabric-iot can provide decentralized, fine-grained and dynamic access control management in IoT. To verify the performance of this system, two groups of simulation experiments are designed. The results show that fabric-iot can maintain high throughput in largescale request environment and reach consensus efficiently in a distributed system to ensure data consistency.

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MQTT-Topics Management System for sharing of Open Data

Cited by 51 publications

References 8 publications

Smart Vest for Respiratory Rate Monitoring of COPD Patients Based on Non-Contact Capacitive Sensing

Smart Vest for Respiratory Rate Monitoring of COPD Patients Based on Non-Contact Capacitive Sensing

Water Management for Sustainable Irrigation Systems Using Internet-of-Things

Fabric-iot: A Blockchain-Based Access Control System in IoT

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