IP Library Granted Patent US 12699860
Granted Patent B1
US 12699860 · App. 18/740,963 · Granted Aug 4, 2026

System and method for using QR codes printed by a mobile printing robot in a construction site

Inventors: Tessa Ann Lau (Sunnyvale, CA); Philipp Josef Herget (Sunnyvale, CA)
Assignee: Dusty Robotics, Inc.
G06K7/1417G06K1/121
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Quick Facts
Patent No.
US 12699860
App. No.
18/740,963
Granted
Aug 4, 2026
Kind
B1
Abstract

A system and method for providing construction management services utilizes a mobile robotic printer to print location information tags when a layout is printed. The location information tags can be later scanned and used to identify a location of a user on a construction site when the user scans the location information tag with a mobile computing device, such as a smartphone or a tablet device. The user's credential may also be used to identify the user's ID and their role in the construction project. A variety of services may be provided, including providing role-based construction information.

Claims (45)

1 . A method of placing location tags on a construction site, comprising:

receiving files for a layout;

generating location information tags to be added to the layout, with a format defining positions of a plurality of location information tags with respect to specific positions of features of the layout, the format further defining how location information is encoded in the plurality of location information tags as information scannable by a mobile computing device; and

utilizing a mobile robotic printer to print the layout on a construction surface with the plurality of location information tags printed on the construction surface at positions defined by the format with respect to the layout.

2 . The method of claim 1 , wherein the plurality of location information tags comprise Quick Response (OR) codes.

3 . The method of claim 2 wherein the QR codes are scannable by mobile computing devices of construction workers to identify a location of interest in the layout and access information relevant for a construction worker based at least in part on a worker's identification (ID) and their role in a construction project.

4 . The method of claim 1 , further comprising:

receiving, from a mobile device of a user associated with a construction site, log-in credentials and a scanned location information tag printed at a location of a layout printed on the construction site;

determining an identity and role of the user based on matching the login credentials to stored information of users and their roles in the construction site;

identifying a location of interest to the user based on the scanned location information tag;

retrieving a phase of construction based on a current date and time based on a construction schedule; and

accessing targeted information currently relevant to the user from a construction management system based on the identity and role of the user, the location of interest to the user, and the phase of construction.

5 . The method of claim 4 , wherein the plurality of location information tags comprise Quick Response (QR) codes.

6 . The method of claim 1 , wherein the feature is selected from the group consisting of a room, a wall, and an entranceway.

7 . A method of retrieving information for a construction employee, comprising;

utilizing a mobile printing robot to print a layout with Quick Response (OR) codes printed in a pre-selected format with a number and arrangement of QR codes printed with respect to features of the layout selected to provide scannable location information for users of mobile computing devices on a construction site;

receiving, from a mobile device of a user associated with a construction site, log-in credentials and contents of a scanned QR code from a QR code printed at a pre-selected location with respect to a position of a feature of the layout printed on a constructive surface of the construction site by the mobile printing robot;

determining an identity and role of the user based on matching the login credentials to stored information of users and their roles in the construction site;

identifying a location of interest to the user based on information from the scanned QR code and the pre-selected location of the QR code with respect to the feature of the layout;

retrieving a phase of construction based on a current date and time based on a construction schedule; and

accessing targeted information currently relevant to the user from a construction management system based on the identity and role of the user, the location of interest of the user, and the phase of construction.

8 . The method of claim 7 , wherein the targeted information is relevant to at least one room of the layout and comprises at least one of: construction instructions, a check list, a checkoff list, a materials list, building plans, drawings, or a 3D view of a finished project.

9 . The method of claim 7 , where the user's role comprises a user's trade.

10 . The method of claim 7 , wherein the targeted information comprises trade-specific information.

11 . The method of claim 10 , where the trade specific information comprises at least one of construction instructions, a check list, a checkoff list, and a materials list, building plans, drawings, or a 3D view of a finished project.

12 . The method of claim 7 , further comprising: receiving from the user a part ID, checking the part ID, and determining if the user is using a correct part.

13 . The method of claim 7 , further comprising tracking which portions of a construction process have been completed at the location of interest.

14 . The method of claim 13 , further comprising updating a digital twin based on the tracking.

15 . The method of claim 7 , wherein the feature is selected from the group consisting of a room, a wall, and an entranceway.

16 . A method of verifying work on a construction site comprising;

receiving, from a mobile device of a user associated with the construction site, login credentials, and a scanned Quick Response (QR) code for a QR code printed at a pre-selected location with respect to a feature of a layout printed on a construction surface of the construction site;

retrieving an identity and role of the user based on matching the login credentials to stored information of users and their roles in the construction site;

retrieving a location of interest to the user based on matching the scanned QR code to a collection of QR codes printed at different locations of the layout;

retrieving information about a type of material being installed at the location of interest based on barcodes or QR codes located on materials used; and

confirming correct installation of materials based on construction plans and the materials being installed at the location of interest.

17 . The method of claim 16 , further comprising: utilizing a mobile printing robot to print the layout with additional QR codes printed in pre-selected format with a number and arrangement of QR codes selected to provide scannable location information for users of mobile computing devices on the construction site.

18 . The method of claim 16 , wherein the feature is selected from the group consisting of a room, a wall, and an entranceway.

19 . A method of tracking progress of work on a construction site comprising;

determining an identity and role based on a user's login credentials;

identifying a location of work being performed based on a scanned Quick Response (QR) code printed with a layout on a construction surface at the construction site by a mobile printer robot, the QR code printed at a pre-selected position with respect to a feature of the layout;

retrieving information about a type of material being installed based on scanned barcodes or QR codes located on materials used for the work;

combining the identity and role of the user, the location of the work, and a type of work to track which portions of a construction project have been completed.

20 . The method of claim 19 , further comprising:

utilizing a mobile printing robot to print a layout with QR codes printed in a pre-selected format with a number and arrangement of QR codes selected to provide scannable location information for users of mobile computing devices on a construction site.

21 . The method of claim 19 , wherein the feature is selected from the group consisting of a room, a wall, and an entranceway.