Smartmote - An innovative autonomous Wireless Sensor Node architecture

Nanda, Kaushik; Babu, Hari; Selvakumar, David; Dwarakanath, Tulasi; Nayak, Kiran; Venkatesh,

doi:10.1109/conecct.2014.6740350

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…The recently works presents high efficient circuits using DMS and DSV, achieving a energy consuming of 375 nAh, to performs two measures and send information on 17.5 ms [16]. To achieve this efficiency its necessary uses low power microprocessor, several recent motes uses the MSP430, that 0.42 mA to 1.5 mA in wake mode and 0.6 uA to 2.6 uA in sleep mode [15][16][17][18].…”

Section: Related Workmentioning

confidence: 99%

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Energy-Efficient WSN Systems

Semente

Oliveira

Lock

et al. 2015

Smart Sensors, Measurement and Instrumentation

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Abstract. Due to increasing number of controllers, sensors and actuators in conventional instrumentation systems, cabling connection complexity has also grown, increasing time and maintenance cost. As a result, the use of IEEE 802.15.4 standard in Wireless Sensors Networks (WSN) have also increased, allowing faster maintenance time, as well as layout changes. In some applications, where there are no reliable sources of energy, the aspect of energy consumption is very important, as in environmental monitoring, mobile applications, agricultural industry and automation of oil wells. This book chapter presents the mainly practices to reduce energy consumption in wireless sensor networks and new techniques. A few of the new power-saving techniques are the Dynamic Scaling Voltage that is a real time reduction of the supply voltage, the Dynamic Modulation Schedule that allows channel characteristics changes according to the need for energy economy, Rational Time Sampling that change the duty cycle of the device dynamically, and the most used and most economical network protocols. A design of an energy-efficient system is presented, show the hardware and software detail of subsystem and communications aspects, emphasizing the control subsystem of charge and discharge, for uses with a solar panels, as well as software optimized for task of network controlling and sensing, both characteristics that leads a reduced consumption of energy. This chapter also presents a consumption estimation method to be used in WSN designs projects that allows the engineer to define the network characteristics as a set of performance requirements and suggests further developments in this area.

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Section: Related Workmentioning

confidence: 99%

“…To achieve this efficiency its necessary uses low power microprocessor, several recent motes uses the MSP430, that 0.42 mA to 1.5 mA in wake mode and 0.6 uA to 2.6 uA in sleep mode [15][16][17][18].…”

Section: Related Workmentioning

confidence: 99%

Energy-Efficient WSN Systems

Semente

Oliveira

Lock

et al. 2015

Smart Sensors, Measurement and Instrumentation

View full text Add to dashboard Cite

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“…The issue of maintenance is also relatively simpler to carry out. This is possible by over the air programming in smartmotes [10].…”

Section: Related Workmentioning

confidence: 99%

Retrofit control solutions for old buildings using WSN

Anand

Vasudevan

Bhattacharya

et al. 2015

2015 International Conference on Computer, Communications, and Control Technology (I4CT)

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Sustainability of old buildings is constantly challenged due to its non-compliance with energy saving practices. Old buildings which aim to deploy technologies to improve thermal comfort face some infrastructure constraints. The sustainability of such buildings is dependent on occupant's thermal comfort, low carbon emissions and reduced energy consumption. Such buildings face restraints in the way in which wired and wireless technologies could be used to implement sensing and control actions. Constraints include infrastructure limitations and space usage restrictions. This paper discusses retrofit solutions for old buildings for minimizing energy consumption and maximizing the occupant's comfort. The implementation of the retrofitted solution in an existing old building with minimal infrastructure change is elaborated. This includes implementation of thermal comfort based algorithm for zonal damper control, indoor air quality based window control and light sensor based blinds control. The sensing and control action is based on indigenous circuits communicating through ZigBee wireless protocol in Wireless SensorNetwork (WSN) of motes. A WingZ gateway runs the thermal comfort algorithm and acts as command centre for the WSN. The research aims to demonstrate the possibility of extending sustainability of existing old buildings by using energy conscious building automation solutions where large scale infrastructure change is not possible.

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“…The use of internal WDT results in a complex algorithm and provides short durations of wait periods [11]. Using a good external WDT, such as a periodic reset monitor (PRM), to switch the power to the system based on a programmed time will solve this problem [11][12]. Some applications of external WDTs are used in fieldprogrammable gate arrays (FPGA) [13][14] or commercial offthe-shelf (CTOS) processor based systems [15].…”

Section: Introductionmentioning

confidence: 99%

“…An approach for doing restart or reboot to the main system automatically is to use an internal or external watch dog timer (WDT). The use of internal WDT results in a complex algorithm and provides short durations of wait periods [11]. Using a good external WDT, such as a periodic reset monitor (PRM), to switch the power to the system based on a programmed time will solve this problem [11][12].…”

Section: Introductionmentioning

confidence: 99%

Design of a dual-microcontroller scheme to overcome the freeze problem for a smart data logger

Mahendra

Syamsi

2014

2014 2nd International Conference on Information and Communication Technology (ICoICT)

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Screen freeze (or no response) is a condition that often occurs in a Personal Computer (PC). In this condition, the PC has lost the ability to respond to its application programs. The same thing can also happen to a data logger, which is usually constructed by using a microcontroller or embedded processor. We propose a design of a dual microcontroller to overcome hang, or no response, of the main microcontroller in a data logger. One of the smart features is an auto restart or reboot, so the data logger with the 'no response' condition is able to reboot without operator assistance. We used an ATmega128 as the main or master microcontroller and an ATtiny13 as the watchdog or slave microcontroller. The watchdog microcontroller detects the activity of the main microcontroller by monitoring a periodic signal from the main microcontroller. If a disruption occurs in the system and the main microcontroller is not able to send this periodic signal, the watchdog microcontroller would determine that a system failure has occurred. System failure will trigger the watchdog microcontroller to activate a relay to reset the main microcontroller. This capability is expected to increase the stability of the data logger and minimize the measurement data lost.

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Smartmote - An innovative autonomous Wireless Sensor Node architecture

Cited by 8 publications

References 1 publication

Energy-Efficient WSN Systems

Energy-Efficient WSN Systems

Retrofit control solutions for old buildings using WSN

Design of a dual-microcontroller scheme to overcome the freeze problem for a smart data logger

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