This paper is mainly on the problem of radiation interception risk control in sensor network for target tracking.Firstly,the sensor radiation interception risk is defined as the product of the interception probability...This paper is mainly on the problem of radiation interception risk control in sensor network for target tracking.Firstly,the sensor radiation interception risk is defined as the product of the interception probability and the cost caused by the interception.Secondly,the radiation interception probability model and cost model are established,based on which the calculation method of interception risk can be obtained.Thirdly,a sensor scheduling model of radiation risk control is established,taking the minimum interception risk as the objective function.Then the Hungarian algorithm is proposed to obtain sensor scheduling scheme.Finally,simulation experiments are mad to prove the effectiveness of the methods proposed in this paper,which shows that compared with the sensor radiation interception probability control method,the interception risk control method can keep the sensor scheduling scheme in low risk as well as protect sensors of importance in the sensor network.展开更多
针对现有煤矿井下目标定位方法精度不能满足应急救援、井下人员作业管理以及煤矿物联网建设对精确定位的需要,提出基于TOA(Time of Arrival)的煤矿井下目标精确定位方法。针对TOA方法用于目标定位受设备计时误差影响较大,井下巷道呈一...针对现有煤矿井下目标定位方法精度不能满足应急救援、井下人员作业管理以及煤矿物联网建设对精确定位的需要,提出基于TOA(Time of Arrival)的煤矿井下目标精确定位方法。针对TOA方法用于目标定位受设备计时误差影响较大,井下巷道呈一维条状分布,无法采用地面常用的二维、三维抑制误差算法,提出基于计时误差抑制的TOA煤矿井下目标定位方法,建立双路WiFi(Wireless Fidelity)信道+单路光纤信道的一维定位方法和信号收发计时方式,在此基础上提出计时误差抑制算法。测试结果证明计时误差抑制算法在采用此定位方法基础上,有效地抑制了设备计时误差造成的测距误差,实测误差不影响定位精度,验证了此方法的定位性能。展开更多
基金This article is funded by Chinese national natural science foundation(61573374).
文摘This paper is mainly on the problem of radiation interception risk control in sensor network for target tracking.Firstly,the sensor radiation interception risk is defined as the product of the interception probability and the cost caused by the interception.Secondly,the radiation interception probability model and cost model are established,based on which the calculation method of interception risk can be obtained.Thirdly,a sensor scheduling model of radiation risk control is established,taking the minimum interception risk as the objective function.Then the Hungarian algorithm is proposed to obtain sensor scheduling scheme.Finally,simulation experiments are mad to prove the effectiveness of the methods proposed in this paper,which shows that compared with the sensor radiation interception probability control method,the interception risk control method can keep the sensor scheduling scheme in low risk as well as protect sensors of importance in the sensor network.
文摘针对现有煤矿井下目标定位方法精度不能满足应急救援、井下人员作业管理以及煤矿物联网建设对精确定位的需要,提出基于TOA(Time of Arrival)的煤矿井下目标精确定位方法。针对TOA方法用于目标定位受设备计时误差影响较大,井下巷道呈一维条状分布,无法采用地面常用的二维、三维抑制误差算法,提出基于计时误差抑制的TOA煤矿井下目标定位方法,建立双路WiFi(Wireless Fidelity)信道+单路光纤信道的一维定位方法和信号收发计时方式,在此基础上提出计时误差抑制算法。测试结果证明计时误差抑制算法在采用此定位方法基础上,有效地抑制了设备计时误差造成的测距误差,实测误差不影响定位精度,验证了此方法的定位性能。
