摘要
由于传感器的感知能力受天气和环境等因素的影响,导致传感器在不同的时间和环境下获得的信息具有不确定性。从信息覆盖的角度考虑,针对传感器网络的不确定性信息覆盖问题,提出了基于云函数的传感器区间值模糊信息模型,利用可接受函数确定传感器模糊信息覆盖阈值,研究了传感器模糊信息覆盖模型的性质,在此基础上分析比较了确定部署情况下的模糊信息覆盖情况,仿真实验论证该模型具有合理性。
In practical applications, sensor perception will be affected by weather or environmental factors and changes with time. It means that the sensor information has the uncertainty property. To consider information coverage, this paper analyzed the uncertainty of information coverage in sensor networks. A new notion of fuzzy information coverage is proposed based on fuzzy theory. The interval-valued fuzzy information mold is available based on the cloud function. We can get the threshold of fuzzy information coverage by the acceptability function. Then the mold of fuzzy information coverage is decided. It analyses the determinate deployed sensor networks on the last section of the paper and the experiments are presented to prove the reasonable of the mold.
出处
《成都信息工程学院学报》
2012年第4期359-363,共5页
Journal of Chengdu University of Information Technology
关键词
信号与信息处理
传感器网络
模糊覆盖
云函数
区间值
可接受函数
signal and information processing
sensor networks
fuzzy coverage
cloud function
interval-values
acceptability function
