Systems and methods for GPS/GNSS based real time global asset tracking

Patent metadata

Field	Value
Publication number	US-11656368-B2
Application number	US-202117340580-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Jun 5, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

Systems and methods for global positioning satellite (GPS)/global navigation satellite system (GNSS) based real time global asset tracking are described. In an embodiment provides a system for real time, fast, global asset tracking, the system includes: a server with a processor, a memory, and a network interface, wherein the memory includes a tracking application, where the tracking application directs the processor to: receive a message including specific data from a tag; determine a time search window based on the message received from the tag; perform an initial position search; perform calculations for position and time, utilizing the time search window, the initial position search and satellite ephemeris information; and display a position information of the tag.

First claim

What is claimed is:

1. A system for real time global asset tracking, the system comprising:
a tag having a microcontroller, a memory containing an application, and a plurality of antenna, wherein the application directs the microcontroller to selected one antenna from the plurality of antenna for use in satellite communication;
a server-side processor;
a server-side memory comprising a tracking application, where the tracking application directs the processor to:
determine a time search window based on a message received from the tag;
perform an initial position search;
perform calculations for position and time, utilizing the time search window, the initial position search and satellite ephemeris information; and
display a position information of the tag.

2. The system of claim 1 , wherein the tag further comprises a satellite communication sub-system.

3. The system of claim 1 , wherein the tag further comprises a navigation receiver.

4. The system of claim 1 , wherein the tag further comprises a power management subsystem.

5. The system of claim 1 , wherein the tag further comprises a navigation receiver.

6. The system of claim 1 , further comprising a plurality of sensors, wherein the plurality of sensors comprises salt water sensors, accelerometers, pressure sensors, and microphones.

7. The system of claim 1 , wherein the tag is configured to receive GPS/GNSS data.

Assignees

• Univ Leland Stanford Junior

Inventors

• Block Barbara Ann
• Lo Sherman C
• De Lorenzo David S
• Chen Yu-Hsuan
• Enge Per K

Classifications

• G01S5/0036

  of measured values, i.e. measurement on mobile and position calculation on base station · CPC title

• H04L67/52

  specially adapted for the location of the user terminal · CPC title

• H04W4/025

  using location based information parameters · CPC title

• G01S19/09

  providing processing capability normally carried out by the receiver · CPC title

• H04W4/38

  for collecting sensor information · CPC title