# US 11,443,127 B1 · Systems and methods for dynamic optimization of scan frequency in gateways for asset management

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- Number: US 11,443,127 B1
- Document ID: US11443127B1
- Status: Granted
- Kind: B1
- Application number: 17/225,678
- Filed: 2021-04-08
- Granted: 2022-09-13
- Earliest claimed: 2021-04-08
- Assignees: Hilti Aktiengesellschaft
- Applicants: Hilti Aktiengesellschaft
- Inventors: Alfred Lupper; Muhammad Salman Malik
- Web page: https://patentgrep.com/patent/US11443127B1

## CPC

- G06K 7/10366: {the interrogation device being adapted for miscellaneous applications}
- G06K 17/0022: {arrangements or provisions for transferring data to distant stations, e.g. from a sensing device ("transfer between computer elements G06F13/00 "; data-transmission H04L)}
- G06K 7/10079: {the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions}
- G06K 7/10118: {the sensing being preceded by at least one preliminary step}
- G06K 7/10207: {parameter settings related to power consumption of the interrogator}
- G06Q 10/0833: Tracking
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

A system includes one or more assets disposed within a physical location, where each asset is coupled to a wireless tag. Each wireless tag is configured to wirelessly transmit beacon signals at predetermined intervals. The system further includes a gateway configured to cover the range of the physical location. The gateway is configured to scan the physical location to identify beacon signals transmitted by each of the wireless tags and receive the beacon signals from each wireless tag at the predetermined intervals. The gateway is also configured to dynamically optimize a function of the gateway by adjusting a scan frequency based at least in part on a variability of the wireless tags disposed within the physical location.

## Claims

### Claim 1

A system, comprising:
one or more assets disposed within a physical location, wherein each asset is coupled to a wireless tag, and wherein each wireless tag is configured to wirelessly transmit beacon signals; and
a gateway configured to cover the range of the physical location, and wherein the gateway is configured to:
scan the physical location to identify beacon signals transmitted by each of the wireless tags;
receive the beacon signals from each wireless tag at intervals; and
dynamically optimize a function of the gateway by adjusting a scan frequency based at least in part on a variability of the wireless tags disposed within the physical location, wherein adjusting the scan frequency comprises increasing or decreasing a duration of the intervals.

### Claim 2 (depends on 1)

The system of claim 1, wherein dynamically optimizing a function of the gateway comprises optimizing an overall power consumption of the gateway.

### Claim 3 (depends on 1)

The system of claim 1, wherein dynamically optimizing a function of the gateway comprises adjusting for a dynamic movement of the one or more assets into and out of the range of the gateway.

### Claim 4 (depends on 1)

The system of claim 1, wherein adjusting a scan frequency comprises increasing a current scan frequency of the gateway when the gateway detects an increase in a variability.

### Claim 5 (depends on 4)

The system of claim 4, wherein the increase in the variability is a dynamic change in the inventory of the one or more assets entering and leaving the range of the gateway.

### Claim 6 (depends on 4)

The system of claim 4, wherein the variability is a dynamic change in the number of beacon signals received from new wireless tags entering the range, a different number of beacon signals received by the gateway, one or more missing beacon signals from wireless tags previously within the range, or a combination thereof.

### Claim 7 (depends on 1)

The system of claim 1, wherein adjusting a scan frequency comprises decreasing a current scan frequency of the gateway when the gateway detects a decrease in variability.

### Claim 8 (depends on 7)

The system of claim 7, wherein the decrease in the variability is a dynamic change in inventory of the one or more assets entering and leaving the range of the gateway.

### Claim 9 (depends on 7)

The system of claim 7, wherein the variability is a dynamic change in the number of beacon signals received from new wireless tags entering the range, a different number of beacon signals received by the gateway, one or more missing beacon signals from wireless tags previously within the range, or a combination thereof.

### Claim 10 (depends on 1)

The system of claim 1, wherein the physical location is a construction jobsite, a warehouse, a storage asset, a shipping container, a vehicle, a mode of transportation, a worker, a transportation vehicle, a container, or a combination thereof.

### Claim 11 (depends on 1)

The system of claim 1, wherein the gateway comprises cellular capabilities or a fixed line to route information to a remote asset management platform.

### Claim 12 (depends on 1)

The system of claim 1, wherein each wireless tag is removably coupled to an external surface of each asset of the one or more assets.