System for tracking assets

• US 9,961,662 B2
• Filed: 09/01/2016
• Issued: 05/01/2018
• Est. Priority Date: 09/01/2016
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Mahasenan, Arun V., Kulkarni, Amit
• Primary Examiner(s): Phan, Hanh
• Application Number:
  US15/254,478
• Publication Number:
  US 20180063808A1
• Time in Patent Office: 607 Days
• Field of Search: 398172, 398118, 398119, 398128, 398130, 398127, 398115, 398135, 398136, 398182, 398183, 398 33, 398116, 315312, 315291, 315293, 315294, 315307, 315152
• CPC Class Codes: G01S 1/02 using radio waves G01S19/00 takes precedence
• CPC Class Codes: G01S 1/7034 Mounting or deployment thereof
• CPC Class Codes: G01S 1/7038 Signal details
• CPC Class Codes: G01S 13/74 Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
• CPC Class Codes: G01S 2201/01 adapted for specific applications or environments
• CPC Class Codes: G01S 5/0036 of measured values, i.e. measurement on mobile and position calculation on base station
• CPC Class Codes: G01S 5/0264 at least one of the systems being a non-radio wave positioning system
• CPC Class Codes: G01S 5/16 using electromagnetic waves other than radio waves
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications
• CPC Class Codes: H04B 10/116 Visible light communication
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A system for tracking assets. The system includes a visible light source that includes a wireless signal generator configured to produce wireless signals and a tag that includes a detector that detects the presence of the wireless signals produced by the visible light source. The tag includes a transmitter that is configured to send additional wireless signals. The system further includes a tag monitor that includes a receiver that is configured to receive the additional wireless signals. The tag monitor determines a location of the tag based on the additional wireless signals received from the tag.

Claims

1. A system for tracking assets, the system comprising:

a visible light source that includes a wireless signal generator configured to produce wireless signals;

a tag that includes a detector that detects the presence of the wireless signals produced by the visible light source, wherein the tag includes a transmitter that is configured to send additional wireless signals; and

a tag monitor that includes a receiver that is configured to receive the additional wireless signals, wherein the tag monitor determines a location of the tag based on the additional wireless signals received from the tag, wherein the tag includes a motion sensor that determines when the tag moves, and wherein the detector begins detecting the wireless signals when activated by the motion sensor, wherein the motion sensor determines a velocity of the tag, wherein a rate at which the detector detects the wireless signals from the visible light source is determined by the velocity of the tag.

2. The system of claim 1 further comprising a server that is part of a network, wherein the server receives the tag location from the tag monitor and provides the location to other devices on the network.

3. The system of claim 2 wherein the server is integral with the tag monitor.

4. The system of claim 1 wherein the tag is configured to be worn by an individual.

5. The system of claim 1 wherein the wireless signals include at least one of optical signals, sound signals or electromagnetic signals at a particular frequency.

6. The system of claim 1 wherein the wireless signals include optical signals, sound signals and electromagnetic signals at a particular frequency.

7. The system of claim 1 wherein the visible light source is configured to receive signals from the tag monitor and produce the wireless signals based on the signals received from the tag monitor.

8. The system of claim 7 wherein the visible light source is configured to receive signals from the tag monitor through a lighting infrastructure that provides power to the visible light source.

9. The system of claim 1 wherein the additional wireless signal that are sent from the transmitter to the tag monitor includes at least one of Bluetooth or Wi-Fi signals.

10. The system of claim 1 wherein the wireless signals that are sent from the visible light source to the tag includes at least one of Bluetooth or Wi-Fi signals.

15. The system of claim 1 wherein the wireless signals include at least one of optical signals, sound signals or electromagnetic signals at a particular frequency.

11. A system for tracking assets, the system comprising:

a visible light source that includes a wireless signal generator configured to produce wireless signals;

a tag that includes a detector that detects the presence of the wireless signals produced by the visible light source, wherein the tag includes a transmitter that is configured to send additional wireless signals; and

a tag monitor that includes a receiver that is configured to receive the additional wireless signals, wherein the tag monitor determines a location of the tag based on the additional wireless signals received from the tag, wherein the tag includes a passive RFID detector that detects RFID signals, wherein the transmitter in the tag is configured to receive the RFID signals from the passive RFID detector and send the RFID signals to the tag monitor within the additional wireless signals.

12. The system of claim 11 wherein the tag monitor uses the RFID signals and the additional wireless signals to determine the location of the tag.

13. A system for tracking assets, the system comprising:

a tag that include a wireless signal generator configured to produce wireless signals;

a visible light source that includes a detector that detects the wireless signals from the tag, wherein the visible light source includes a transmitter that is configured to send signals that include information relating to a location of the tag based on the wireless signals received from the tag; and

a tag monitor that includes a receiver that is configured to receive the signals from the visible light source, wherein the tag monitor determines a location of the tag based on the signals received from the visible light source, wherein the tag is configured to be worn by an individual, and wherein the tag is configured to receive supplemental wireless signals from the tag monitor and emit the wireless signals based on the supplemental wireless signals received from the tag monitor.

14. The system of claim 13 wherein the tag monitor is configured to receive the signals from the visible light source through a lighting infrastructure that provides power to the visible light source.

16. The system of claim 13 wherein the wireless signals include optical signals, sound signals and electromagnetic signals at a particular frequency.

17. A system for tracking assets, the system comprising:

a tag that include a wireless signal generator configured to produce wireless signals;

a visible light source that includes a detector that detects the wireless signals from the tag, wherein the visible light source includes a transmitter that is configured to send signals that include information relating to a location of the tag based on the wireless signals received from the tag; and

a tag monitor that includes a receiver that is configured to receive the signals from the visible light source, wherein the tag monitor determines a location of the tag based on the signals received from the visible light source, wherein the tag includes a motion sensor that determines when the tag moves, and wherein the tag begins producing the wireless signals when activated by the motion sensor, and wherein the motion sensor determines a velocity of the tag, wherein a rate at which the tag produces the wireless signals is determined by the velocity of tag, and wherein the tag includes a passive RFID detector that detects RFID signals, wherein the tag includes a passive RFID detector that detects RFID signals, wherein the tag includes the RFID signals within the wireless signals.

18. A system for tracking assets, the system comprising:

a tag that include a wireless signal generator configured to produce wireless signals;

a visible light source that includes a detector that detects the wireless signals from the tag, wherein the visible light source includes a transmitter that is configured to send signals that include information relating to a location of the tag based on the wireless signals received from the tag; and

a tag monitor that includes a receiver that is configured to receive the signals from the visible light source, wherein the tag monitor determines a location of the tag based on the signals received from the visible light source, wherein the tag includes a motion sensor that determines when the tag moves, and wherein the tag begins producing the wireless signals when activated by the motion sensor, and wherein the motion sensor determines a velocity of the tag, wherein a rate at which the tag produces the wireless signals is determined by the velocity of the tag.