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Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN

Escobar Amado, Christian David; Celis, Jose Miguel; Sepúlveda, Sergio; Castro Casadiego, Sergio ; Medina Delgado, Byron; Guevara, Dinael (IngeniareChile, 2021-06)

We have developed an algorithm based on hybrid nodes composed of an XBee S2C module configured in API mode with escape and connected to a microcontroller ATMEGA 328P to solve the orphan node problem of a ZigBee tree ...
Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido

Celis-Peñaranda, Jose M; Escobar Amado, Christian David; Sepulveda-Mora, Sergio B; Castro Casadiego, Sergio ; Medina Delgado, Byron; Ramirez Mateus, Jhon Jairo (Ingeniería y cienciaColombia, 2016-11-22)

In order to optimize the traffic flow on a road intersection, an adaptive control algorithm and a data base were designed; both components were hosted on a Raspberry Pi B+ embedded system. The data base helps to debug the ...
Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop

Celis, Jose Miguel; Escobar Amado, Christian David; Medina Delgado, Byron; Castro Casadiego, Sergio; Sepúlveda, Sergio; Guevara-Ibarra, Dinael (TecnoLógicasColombia, 2020-01-30)

In this study, factorial experiments were conducted in two different scenarios to design a Wireless Sensor Network for monitoring a cocoa crop in a rural area in Colombia. Node sensors measured temperature, relative humidity, ...

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Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN
...
Escobar Amado, Christian David | 2021-06

We have developed an algorithm based on hybrid nodes composed of an XBee S2C module configured in API mode with escape and connected to a microcontroller ATMEGA 328P to solve the orphan node problem of a ZigBee tree topology. The sensor nodes have both features End Device and Router that may alternate depending on the situation, and the node can adapt itself to keep the network integrality as much as possible. On the other hand, the coordinator node comprises an XBee S2C module and the embedded system Raspberry Pi 3, which hosts the algorithm and is set up as an access point, a database server, and a web server. Using the proposed algorithm, we were able to recover up to 42.8% of the network coverage, but it comes with an energy cost due to the switch from End Device to Router. Additionally, a mobile application integrated with notification service and Google Maps was developed to monitor every node’s behavior in the Wireless Sensor Network.

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Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido
...
Celis-Peñaranda, Jose M | 2016-11-22

In order to optimize the traffic flow on a road intersection, an adaptive control algorithm and a data base were designed; both components were hosted on a Raspberry Pi B+ embedded system. The data base helps to debug the performance of the controller. The efficiency of the algorithm was assessed using a virtual instrument, which emulated a traffic light intersection in the city of Cucuta, i. e., the magnetorresistive sensors, the activation process of the traffic lights and the traffic flow. By processing and updating the times assigned to the traffic lights, the traffic flow was increased up to 5.5 % and the maximum time a vehicle has to wait before passing through the traffic light was decreased up to 28 seconds. Aditionally the length of line was diminished up to 18 %. Based on this case study, it can be inferred that is possible to integrate the adaptive control and the embedded systems as software and hardware tools to improve the operation of traffic control systems.

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Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop
...
Celis, Jose Miguel | 2020-01-30

In this study, factorial experiments were conducted in two different scenarios to design a Wireless Sensor Network for monitoring a cocoa crop in a rural area in Colombia. Node sensors measured temperature, relative humidity, soil moisture, Ultra-Violet light, and visible light intensity. The factors considered in the experiments were distance between node sensors, height from the ground, and type of antenna; in turn, Received Signal Strength Indicator and data transfer time were the outputs. The wireless sensor network was deployed in the crop, covering approximately 3 % of the area and using 7 different nodes in a cluster tree topology. First, an open field scenario with line of sight was used to determine the appropriate height of the node sensors. Second, a scenario in the actual cocoa crop was utilized to find the appropriate distance between modules and type of antenna. We found, based on our calculations and experimental data, that a height of 1.25 m was required to avoid the Fresnel zone and improve the RSSI of the network. Furthermore, we determined that a distance below 35 m was needed to guarantee signal reception and avoid long data transfer times. The wire antenna exhibited a better performance. Finally, the proposed methodology and monitoring system can be used for agronomic applications in rural areas in Colombia to increase crop yield.

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Listar por autor "9f62f246d163441cfecb47f9a1dcb6c0"

Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN

Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido

Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop

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Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN

Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido

Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop

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Listar por autor "9f62f246d163441cfecb47f9a1dcb6c0"

Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN ﻿

Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido ﻿

Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop ﻿

Envíos recientes

Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN

Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido

Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop

Portales Institucionales

Adaptive nodes algorithm to solve the orphan nodes problem in a ZigBee Tree WSN

Control adaptativo para optimizar una intersección semafórica basado en un sistema embebido

Design of a wireless sensor network for optimal deployment of sensor nodes in a cocoa crop