Method and apparatus for tracking assets in one or more optical domains

• US 9,904,883 B2
• Filed: 04/15/2016
• Issued: 02/27/2018
• Est. Priority Date: 04/15/2016
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Liston, Robert Edward, Tan, Wai-tian, Apostolopoulos, John George
• Primary Examiner(s): Savusdiphol, Paultep
• Application Number:
  US15/130,239
• Publication Number:
  US 20170300794A1
• Time in Patent Office: 683 Days
• Field of Search: 235491, 235487, 235494, 235385
• CPC Class Codes: G06Q 10/0833 Tracking

Abstract

In one implementation, a method of tracking assets includes obtaining a first image in a first optical domain, where the first optical domain is characterized by a first frequency range. The method also includes detecting a tracking apparatus (e.g., a tag) within the first image in the first optical domain, where a first feature of the tracking apparatus serves as a beacon enabling optical discrimination of the tracking apparatus in the first frequency range. The method further includes determining information associated with the tracking apparatus based on the arrangement of a second feature of the tracking apparatus provided to convey a data set associated with the tracking apparatus.

Claims

1. An apparatus comprising:

a surface;

a non-data-encoding feature on the surface provided to serve as a beacon enabling optical discrimination of the apparatus in an infrared frequency band and identification of at least one of the orientation or pitch of the apparatus; and

a data-encoding feature on the surface provided to convey a data set associated with the apparatus in a visible frequency band, wherein the data-encoding feature is distinct from the non-data-encoding feature.

2. The apparatus of claim 1, wherein the non-data-encoding feature is configured to reflect electromagnetic radiation in the infrared frequency band.

3. The apparatus of claim 1, wherein the non-data-encoding feature is configured to fluoresce when excited by electromagnetic in the infrared frequency band.

4. The apparatus of claim 1, wherein the data set characterizes an asset that corresponds to the apparatus.

5. The apparatus of claim 1, further comprising:

a substrate including the surface, wherein the surface is provided on a first side of the substrate.

6. The apparatus of claim 5, further comprising:

an adhesive provided on a second side of the substrate, wherein the adhesive is provided to adhere the apparatus to an asset.

7. The apparatus of claim 1, wherein the non-data-encoding feature includes a first portion on a first side of the data-encoding feature and a second portion on a second side of the data-encoding feature opposite the first side of the data-encoding feature.

8. The apparatus of claim 7, wherein the first portion differs from the second portion enabling identification of at least one of the orientation or pitch of the apparatus.

9. The apparatus of claim 1, wherein the non-data-encoding feature includes a first portion proximal to the data-encoding feature, a second portion proximal to the data-encoding feature and spaced apart from the first portion in a first direction, and a third portion proximal to the data-encoding feature and spaced apart from the first portion in a second direction perpendicular to the first direction.

10. A method comprising:

obtaining a first image in a first optical domain, wherein the first optical domain is characterized by an infrared frequency range;

detecting a tracking apparatus within the first image in the first optical domain, wherein a non-data-encoding feature of the tracking apparatus serves as a beacon enabling optical discrimination of the tracking apparatus in the infrared frequency range and identification of at least one of the orientation or pitch of the apparatus;

obtaining a second image in a second optical domain, wherein the second optical domain is characterized by a visible frequency range; and

determining information associated with the tracking apparatus based on the arrangement of a data-encoding feature of the tracking apparatus within the second image in the second optical domain, wherein the data-encoding feature is distinct from the non-data-encoding feature.

11. The method of claim 10, wherein the data set characterizes an asset that corresponds to the tracking apparatus.

12. The method of claim 11, further comprising:

determining an identity for the asset based on the determined information;

determining a location for the asset; and

associating the location with the identity for the asset in a tracking database.

13. The method of claim 11, further comprising:

obtaining an instruction to identify a location of a specified asset; and

wherein obtaining the first image comprises obtaining the first image in the first optical domain in response to receiving the instruction.

14. The method of claim 13, further comprising:

determining an identity for the asset based on the determined information;

determining a location for the asset;

associating the location with the identity for the asset in a tracking database; and

providing the location of the asset according to a determination that the identity of the asset matches the specified asset.

15. The method of claim 10, further comprising:

enabling one or more illumination sources to illuminate an area associated with the tracking apparatus, wherein the one or more illumination sources emit electromagnetic energy corresponding to the infrared frequency range; and

wherein capturing the first image in the first optical domain comprises capturing the first image in the first optical domain while the one or more illumination sources are enabled.

16. The method of claim 15, further comprising:

modulating the one or more illumination sources;

capturing a second image in the first optical domain while the one or more illumination sources are modulated; and

wherein detecting the tracking apparatus comprises performing a difference operation between the first image and the second image in order to detect the tracking apparatus.

17. The method of claim 10, where determining information associated with the tracking apparatus is further based on the at least one of the orientation and pitch of the tracking apparatus.

18. A non-transitory memory storing one or more programs, which, when executed by one or more processors of a device, cause the device to:

obtain a first image in a first optical domain, wherein the first optical domain is characterized by an infrared frequency range;

detect a tracking apparatus within the first image in the first optical domain, wherein a non-data-encoding feature of the tracking apparatus serves as a beacon enabling optical discrimination of the tracking apparatus in the infrared frequency range and identification of at least one of the orientation or pitch of the apparatus; and

obtaining a second image in a second optical domain, wherein the second optical domain is characterized by a visible frequency range;

determine information associated with the tracking apparatus based on the arrangement of a data-encoding feature of the tracking apparatus within the second image in the second optical domain, wherein the data-encoding feature is distinct from the non-data-encoding feature.