Critical Sensing Range for Mobile
Heterogeneous Camera Sensor Networks
Yitao Hu, Xinbing Wang, Xiaoying Gan
Department of Electronic Engineering
Shanghai Jiao Tong University, China
Outline
Basic Idea
Main Contribution
System Model
Numerical Analysis
2
Basic Idea
Coverage:
 to measure how well a field is monitored by sensors
within the field.
Camera Sensor Network
 Enrich the information of the monitored region
 Do not possess omnidirectional sensing ability as
traditional ones
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Main Contribution
Derived the Critical Condition
Considered the characteristic of Heterogeneity
Considered the characteristic of Mobility
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System Model
Sensing Model
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System Model
Deployment Model
Two main simplification
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System Model
Deployment Model
Two main simplification
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System Model
Definition of Critical
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System Model
An example:
 2-dimensional random walk mobility model
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System Model
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System Model
Necessary Condition
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System Model
Necessary Condition
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System Model
Necessary Condition
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System Model
Necessary Condition
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System Model
Necessary Condition
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System Model
Sufficient Condition
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System Model
Sufficient Condition
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System Model
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Numerical Analysis
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Numerical Analysis
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Thank you !