Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Angle of arrival positioning system for tracking objects

An angle and wireless system technology, applied in the field of wireless communication and wireless network systems, can solve problems such as high cost, low accuracy, and unresolved positioning accuracy, and achieve the effect of improving positioning accuracy and improving accuracy

Inactive Publication Date: 2020-02-14
POLTE CORP
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the case of active DAS, the best accuracy (lower limit of error) is limited to 50 meters
Finally, Chen et al. do not address the impact of multipath on positioning accuracy in indoor environments, which are most severe (compared to outdoors) and in many cases lead to positioning errors much larger than claimed More (2 times -4 times)
[0023] The modifications made by Chen et al. for indoor wireless network antenna systems are not always feasible due to the enormous effort and cost involved in upgrading existing systems
Furthermore, in the case of an active DAS, the best theoretical accuracy is only 50 meters, and in practice this accuracy will be significantly lower due to RF propagation phenomena involving multipath

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Angle of arrival positioning system for tracking objects
  • Angle of arrival positioning system for tracking objects
  • Angle of arrival positioning system for tracking objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] Reference will now be made in detail to the preferred embodiments of embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0060] Embodiments of the present invention relate to a method and system for RF-based identification, tracking and localization of objects, including RTLS. According to an embodiment, the methods and systems employ narrow bandwidth ranging signals. The described embodiment operates in the VHF band, but can also be used in the HF, LF and VLF bands as well as the UHF band and higher frequencies. It employs a multipath mitigation processor. The use of a multipath mitigation processor improves the accuracy of tracking and positioning performed by the system.

[0061] Embodiments include a small, very portable base unit that allows a user to track, locate and monitor multiple people and objects. Each unit has its own ID. Each unit broadcasts an RF signal with its ID and each unit is able to send back a retur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Systems and methods for determining user equipment (UE) locations within a wireless network using reference signals of the wireless network are described. The disclosed systems and methods utilize a plurality of in-phase and quadrature (I / Q) samples generated from signals provided by receive channels associated with two or more antennas of the wireless system. Based on received reference signal parameters the reference signal within the signals from each receive channel among the receive channels is identified. Based on the identified reference signal from each receive channel, an angle of arrival between a baseline of the two or more antennas and incident energy from the UE to the two or more antennas is determined. That angle of arrival is then used to calculate the location of the UE. The angle of arrival may be a horizontal angle of arrival and / or a vertical angle of arrival.

Description

[0001] This application is a divisional application of the Chinese invention patent application 201680066742.1 entitled "Arrival Angle Positioning System for Tracking Objects" filed on October 7, 2016. The related application of its parent application is incorporated herein by reference. technical field [0002] Embodiments of the present invention relate to wireless communication and wireless networking systems, and systems for radio frequency (RF) based identification, tracking, and location of objects, including real-time location services (RTLS). Background technique [0003] RF-based identification and location finding systems for determining the relative or geographic location of objects are generally used for tracking single objects or groups of objects and for tracking individuals. Traditional location finding systems have been used for localization in open outdoor environments. Typically RF based Global Positioning System (GPS) and Assisted GPS are used. However, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/10H04W4/02H04W4/80H04W4/029
CPCG01S5/10H04W4/023H04W4/80H04W4/029H04W64/006G01S3/82H04W4/021H04W4/33G01S5/06G01S5/12G01S3/50
Inventor 杜鲁曼·普雷瓦特
Owner POLTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products