公开(公告)号：US20160187460A1

公开(公告)日：2016-06-30

申请号：US14909244

申请日：2014-08-27

Applicant: SHENYANG INSTITUTE OF AUTOMATION OF THE CHINESE ACADEMY OF SCIENCES

Inventor： Peng ZENG ,  Jinchao XIAO ,  Jie HE ,  Haibin YU

IPC: G01S5/14 ,  H04B1/713 ,  G01S5/02

CPC classification number: G01S5/14 ,  G01S1/042 ,  G01S1/08 ,  G01S5/021 ,  G01S5/0226 ,  G01S5/0252 ,  G01S11/02 ,  G01S11/06 ,  H04B1/713

Abstract: An RSSI positioning method based on frequency-hopping spread spectrum technology, comprising: calibration stage: measuring the RSSI values of a plurality of channels at fixed points, and recording and calculating the ranging parameters in an RSSI ranging model; system preparation: deploying a positioning anchor node, and realizing synchronization between a target node and the anchor node; conducting communication on the target node by respectively utilizing a plurality of channels to obtain the RSSI values; signal processing stage: processing the RSSI into signal strength amplitude and performing optimization; and positioning stage: calculating a distance and the target node position on a positioning server according to each of the signal strength. The present invention solves the problem that low RSSI positioning precision cannot satisfy the actual requirements because a traditional RSSI positioning method is limited to factors such as multipath signal transmission, co-channel interference, obstacle interference and low coordinate calculation precision of a trilateration method.

Abstract translation: 一种基于跳频扩频技术的RSSI定位方法，包括：校准阶段：在固定点测量多个信道的RSSI值，并记录和计算RSSI测距模型中的测距参数; 系统准备：部署定位锚节点，实现目标节点与锚节点之间的同步; 通过分别利用多个信道来在目标节点上进行通信以获得RSSI值; 信号处理阶段：将RSSI处理成信号强度幅度并进行优化; 和定位阶段：根据每个信号强度计算定位服务器上的距离和目标节点位置。 本发明解决了低RSSI定位精度不能满足实际要求的问题，因为传统的RSSI定位方法被限制在诸如多径信号传输，同信道干扰，障碍物干扰和三坐标方法的低坐标计算精度等因素。