نتایج جستجو برای: sensor placement

تعداد نتایج: 261361  

2003
Tamir Hegazy George J. Vachtsevanos

This paper proposes a sensor placement method for three-dimensional point source localization using multiple sensors. An observation model of multiple sensors and one source of unknown position is introduced. Given that model, the minimum number of sensors needed to localize the source is determined, and an optimal sensor placement is derived. The placement is optimal in the sense that it minim...

2014
Santanu Sarma P. Gupta

Thermal sensor characteristics and placement directly impacts the effectiveness and accuracy of full-chip thermal characterization necessary for dynamic thermal management (DTM) and reliable on-chip operation of multi/many-core chips. Temperature sensor characteristics widely vary in their area, power, and accuracy; the number of deployable sensors is constrained by the on-chip area/power const...

Journal: :IEICE Transactions 2008
Jae-Hyun Seo Yong-Hyuk Kim Hwang-Bin Ryou Si-Ho Cha Minho Jo

An important objective of surveillance sensor networks is to effectively monitor the environment, and detect, localize, and classify targets of interest. The optimal sensor placement enables us to minimize manpower and time, to acquire accurate information on target situation and movement, and to rapidly change tactics in the dynamic field. Most of previous researches regarding the sensor deplo...

2014
Jia Hu Maulin Patel

The performance of an advanced lighting system is heavily influenced by the placement and orientation of occupancy sensors and photo-sensors. Incorrect sensor placement can compromise system performance, cause discomfort to occupants and diminish savings. The current process of manually selecting sensors and placing them on a floor plan in a design tool is not only suboptimal but also is tediou...

2014
Joaquim Blesa Fatiha Nejjari Ramon Sarrate

Some pressure sensor placement methods for leak detection and location in water distribution networks are based on the pressure sensitivity matrix analysis. This matrix depends on the network demands, which are nondeterministic, and the leak magnitudes, which are unknown. In this paper, the robustness of a sensor placement methodology against the fault sensitivity matrix uncertainty is studied....

Journal: :Wireless Networks 2008
Xiuzhen Cheng Ding-Zhu Du Lusheng Wang Baogang Xu

This paper addresses the following relay sensor placement problem: given the set of duty sensors in the plane and the upper bound of the transmission range, compute the minimum number of relay sensors such that the induced topology by all sensors is globally connected. This problem is motivated by practically considering the tradeoff among performance, lifetime, and cost when designing sensor n...

2008
Abed Alrahim Yassine Stéphane Ploix Jean-Marie Flaus

Maintenance and diagnosis of complex systems are common activities in the industrial world. Technological advances have led to a continuously increasing complexity of industrial systems. This complexity, which is due to an increasing number of components reduces in turn the reliability of plants. Therefore, fault diagnosis is becoming a growing field of interest. But fault diagnosis relies on s...

2004
Krishnendu Chakrabarty S. S. Iyengar

An important issue in the design of distributed sensor networks is the optimal placement of sensors for target location. If the surveillance region, also referred to as sensor field, is represented as a grid (twoor three-dimensional) of points (coordinates), target location refers to the problem of pin-pointing a target at a grid point at any point in time. For enhanced coverage, a large number...

2015
Myrna V. Casillas Luis E. Garza-Castañón Vicenç Puig

In this paper, a sensor placement approach to improve the leak location in water distribution networks is proposed. The sensor placement problem is formulated as an integer optimization problem where the criterion to minimize is the number of overlapping signature domains computed from the leak signature space (LSS) representation. A stochastic optimization process is proposed to solve this pro...

Journal: :International Journal of Distributed Sensor Networks 2013

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