Communication Protocol for Wireless Sensor Network, Dedicated for Real Time Biosignal Acquisition, Implemented on Top of Contiki OS

MACRo 2015 ◽  
2017 ◽  
Vol 2 (1) ◽  
pp. 105-111
Author(s):  
Loránd Farkas ◽  
Lajos Losonczi
Keyword(s):  
Wireless Sensor Network ◽  
Real Time ◽  
Sensor Network ◽  
Measurement System ◽  
Time Synchronization ◽  
Communication Protocol ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Real Time Transmission ◽  
Contiki Os

AbstractThe aim of this paper is to present a communication protocol designed for Wireless Sensor Network based biosignal measurement system. The protocol addressees the issue of time synchronization of the measuring nodes and real time transmission of the acquired measurements. We run the Contiki OS on the sensor nodes and the protocol was implemented as a process. The proposed protocol was tested on custom built hardware, developed by our team for biosignal measurement.

scholarly journals A Remote Monitoring System of Logistics Carrier Based on Wireless Sensor Network

2018 ◽  
Vol 14 (01) ◽  
pp. 4
Author(s):  
Wang Weidong
Keyword(s):  
Wireless Sensor Network ◽  
Real Time ◽  
Sensor Network ◽  
Monitoring System ◽  
Remote Monitoring ◽  
Monitoring Network ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Remote Monitoring System ◽  
Monitoring Center

To improve the efficiency of the remote monitoring system for logistics transportation, we proposed a remote monitoring system based on wireless sensor network and GPRS communication. The system can collect information from the wireless sensor network and transmit the information to the ZigBee interpreter. The monitoring system mainly includes the following parts: Car terminal, GPRS transmission network and monitoring center. Car terminal mainly consists by the Zigbee microcontroller and peripherals, wireless sensor nodes, RFID reader, GPRS wireless communication module composed of a micro-wireless monitoring network. The information collected by the sensor communicates through the GPRS and the monitoring center on the network coordinator, sends the collected information to the monitoring center, and the monitoring center realizes the information of the logistics vehicle in real time. The system has high applicability, meets the design requirements in the real-time acquisition and information transmission of the information of the logistics transport vehicles and goods, and realizes the function of remote monitoring.

Real-time synchronization of wireless sensor network by 1-PPS signal

2015 ◽  
Author(s):  
Marco Giammarini ◽  
Marco Pieralisi ◽  
Daniela Isidori ◽  
Enrico Concettoni ◽  
Cristina Cristalli ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Real Time ◽  
Sensor Network ◽  
Time Synchronization ◽  
Wireless Sensor

scholarly journals Optimal Design of a Wide Area Measurement System Using Hybrid Wireless Sensors and Phasor Measurement Units

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1085 ◽  
Author(s):  
Amir Bashian ◽  
Mohsen Assili ◽  
Amjad Anvari-Moghaddam ◽  
João P. S. Catalão
Keyword(s):  
Wireless Sensor Network ◽  
Power System ◽  
Sensor Network ◽  
Measurement System ◽  
Communication System ◽  
Sensor Nodes ◽  
Area Measurement ◽  
Wireless Sensor ◽  
Wide Area Measurement System ◽  
Measurement Units

Real-time monitoring of the power system by phasor measurement units (PMUs) leads to the development of such devices in a wide area measurement system (WAMS). However, the power system observability cannot be obtained by employing only PMUs. The communication infrastructure (CI) is a significant part of the WAMS that has to be optimally designed and implemented to collect data from PMUs and deliver them to control centers. In this paper, a novel hybrid wireless sensor network is proposed for the connection of PMUs throughout the system to enable convenient and low-cost communication media. The problem of observability in the communication system is checked along with the optimal placement of PMUs in the power system to reach full observability. A hybrid wireless sensor network including plug-in powered sensor nodes (PPSNs) and energy harvesting sensor nodes (EHSNs) is utilized for increasing the reliability of the communication system. In the proposed co-optimal PMU-sensor placement problem, the main objective is to minimize the total cost of PMU placement and the related communication system, considering full observability of the power system and CI. To achieve better results, the zero-injection bus (ZIB) effect and system observability redundancy index (SORI) are considered as a constraint in the objective function. A binary-coded genetic algorithm is used for solving the proposed mixed-objective optimization problem subject to different technical operating constraints. The proposed method is examined on IEEE 13-bus and IEEE 37-bus test feeder systems. The results show the applicability and effectiveness of the proposed method compared with the conventional methods in this subject area.

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