公开(公告)号：US09154904B2

公开(公告)日：2015-10-06

申请号：US14051733

申请日：2013-10-11

Applicant: Tata Consultancy Services Limited

Inventor： Avik Ghose ,  Abhinav Jha ,  Tapas Chakravarty ,  Chirabrata Bhaumik

IPC: H04W4/00 ,  G01S5/02 ,  H04W4/02

CPC classification number: H04W4/80 ,  G01S5/021 ,  G01S5/0215 ,  G01S5/0252 ,  G01S5/0273 ,  G01S5/0284 ,  H04W4/023

Abstract: A method and system is provided for estimating proximity and accurately calculating the straight line distance between the communicating Bluetooth enabled portable communication devices. Particularly, the invention provides a method and system for capturing the received signal strength indicator (RSSI) values form at least one target communication device (204) by the reference communication device (202); calculating the constant values of properties of communication environment of the devices by utilizing captured received signal strength indicator (RSSI) values; and deriving accurate straight line distance between the reference communication device (202) and the target communication device (204) by utilizing calculated constant values of properties of communication environment of the devices.

Abstract translation: 提供了一种用于估计接近度并准确计算通信蓝牙功能的便携式通信设备之间的直线距离的方法和系统。 特别地，本发明提供了一种用于通过参考通信设备（202）从至少一个目标通信设备（204）捕获接收到的信号强度指示符（RSSI）值的方法和系统; 通过利用捕获的接收信号强度指标（RSSI）值来计算设备的通信环境的属性的常数值; 以及通过利用计算出的设备的通信环境的特性的常数值，得出参考通信设备（202）和目标通信设备（204）之间的准确的直线距离。