Power-Constrained actuator coordination for agricultural sensor networks

  • Authors:
  • Junghoon Lee;Gyung-Leen Park;Ho-Young Kwak;Jikwang Han

  • Affiliations:
  • Dept. of Computer Science and Statistics, Jeju National University, Republic of Korea;Dept. of Computer Science and Statistics, Jeju National University, Republic of Korea;Dept. of Computer Engineering, Jeju National University, Republic of Korea;Jinwoo Soft Innovation, Republic of Korea

  • Venue:
  • GPC'12 Proceedings of the 7th international conference on Advances in Grid and Pervasive Computing
  • Year:
  • 2012

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Abstract

Upon the ubiquitous sensor network capable of deciding control actions by a sophisticated inference engine, this paper designs an actuator controller which coordinates the actuator operations over the multiple farms. Basically, not beginning tasks as soon as they get triggered, local schedulers determine the operation plan according to genetic algorithms, for the sake of reducing peak power consumption for the given scheduling window. For global scheduling, each local scheduler retrieves the current load information maintained in the coordinator, runs its own schedule, and finally sends to the coordinator. The fitness function gives penalty to the allocation which assigns much power to the heavily loaded time slots. The procedure reduces the peak load by up to 22.8 % for the given task set. Moreover, all schedules are not necessarily run with tight concurrency control. Our simulation shows that 40 % of schedulers can run in parallel just with negligible performance loss.