面向资源节省的传感网动态目标自适应获取系统

doi:10.11959/j.issn.1000-436x.2015039

摘要/Abstract

摘要：

针对图像传感网动态目标监测问题，搭建了面向资源节省的动态目标自适应获取系统EasiRS。利用存储空间复用技术减少存储资源需求；提出图像完整性自适应实时检测方法，解决由于目标动态性导致的连续图像的实时处理问题；在图像完整性实时检测的基础上，对获取的信息进行选择性传输，以减少传输数据量和传输能耗。通过室内和室外环境对该方法进行实验，结果表明，该系统不仅可以有效保证系统的感知性能，而且降低了存储开销和传输能耗。

关键词: 图像传感网, 动态目标, 自适应, 感知性能

Abstract:

Aiming at dynamic target detection problems in camera sensor networks,a resource saving oriented dynamic target adaptive acquisition system namely EasiRS is built up.EasiRS reuses storage space to decrease the requirement for the storage resources.To solve the problem of continuous images real-time processing caused by dynamics of the monitoring target,an adaptive real-time detection method for image integration detection is proposed.According to the real-time image integration detection,EasiRS does selective transmission for the acquired information to reduce the communication energy consumption and the amount of data that need to transmit the base station.Both indoor and outdoor environmental experiments are conducted.The results demonstrate that although EasiRS needs extra processing time cost,it can decrease storage consumption and transmission energy consumption while maintaining the sensing performance at acceptable level.

Key words: camera sensor networks, dynamic target, adaptive, sensing performance

肖克江,王睿,崔莉. 面向资源节省的传感网动态目标自适应获取系统[J]. 通信学报, 2015, 36(2): 106-116.

Ke-jiang XIAO,Rui WANG,Li CUI. Resource saving oriented dynamic target adaptive acquisition system in wireless sensor networks[J]. Journal on Communications, 2015, 36(2): 106-116.

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参数	值
小汽车的速度范围/(cm·s^?1)	7～20
需要的完整图像数量k	1
图像传感器视域范围的宽度d_fov/cm	17.6
目标与图像传感器节点之间的距离d_vehCam/cm	40
磁传感器节点的采样频率f_cam/Hz	100
磁传感器与图像传感器之间的距离d_magCam/cm	18

方法	样本数量	真实类型(i/f/n)	图像完整率/%
EasiRS	30	30/0/0	100
ITMC	30	30/0/0	100
ITC	30	30/0/0	100

参数	值
摩托车速度范围/(m·s^?1)	7～20
图像传感器视域范围的宽度d_fov/m	8
目标与图像传感器之间的距离d_vehCam/m	15
磁传感器与图像传感器之间的距离d_magCam/m	18
图像传感器节点的采样频率f_cam/Hz	10

方法	样本数量	真实类型 (i/f/n)	图像完整率/%
EasiRS	21	19/1/1	90.5
ITC	21	21/0/0	100
ITMC	21	20/0/1	95.2

方法	样本数量	真实类型(i/f/n)	图像完整率/%	误检图像的数量	平均图像完整率/%
行人	61	61/0/0	100
自行车	76	75/1/0	98.7
三轮车	11	3/0/0	100	18	92.2
小汽车	58	54/1/3	93.1
面包车	6	6/0/0	100