System for creating measured drawings

• US 20030009315A1
• Filed: 05/14/2002
• Published: 01/09/2003
• Est. Priority Date: 05/15/2001
• Status: Active Grant

• Current Assignee: Paul A. Thomas
• Original Assignee: Metron Media Incorporated
• Inventors: Vikoren, Sean, Thomas, Paul A., Vigoren, Trevor J.
• Granted Patent: US 7,130,774 B2
• Time in Patent Office: Days
• US Class Current: 703/1
• CPC Class Codes: G06F 2111/02 CAD in a network environment, e.g. collaborative CAD or distributed simulation
• CPC Class Codes: G06F 30/00 Computer-aided design [CAD]

Abstract

A system for creating as-built or measured drawings is described herein. The invention allows an operator to collect a set of data at a job-site, in such a manner that individual components of the job-site are linked relative to one another and to use that data to create accurate measured drawings that reflect the structure and content layout of the site. A knowledge based system is used to parse the data in real-time to produce a visual indication that the data has been recorded correctly. Error minimizing functions are used to ensure data integrity. The data may then be uploaded to a central computer server, for content-checking, authorization, and archival purposes. Since the invention provides an integrated environment for recording data and creating drawings, the need to translate data between systems is minimized, reducing the possibility of errors due to operator mis-keying or mis-interpretation.

Claims

1. A method for recording data for use in creating measured drawings of a building, site, or structure, comprising the steps of:

acquiring, either automatically or as user input, data describing the components of a building, site, or structure, including any of the levels, spaces, or objects contained therein, where in for any particular component the acquired data describing that component includes at least partial placement, orientation, or dimension information that relates that component to a previously acquired component;

using a knowledge base to determine the remaining placement, orientation and or dimension information for the particular component; and

,

storing the data describing the components as a plurality of hierarchically linked data entries, so that it can be parsed and used to create measured drawings.

2. The method of claim 1 further comprising the steps of:

parsing said plurality of data entries, using the knowledge base, to create a set of parsed data describing the physical layout and dimensions of the building, site or structure components;

converting the parsed data to image render data duplicating the physical layout and dimensions of the levels, spaces, or objects; and

,

translating the set of rendered data into a drawing component syntax format suitable for use by a computer aided drawing application.

3. The method of claim 2 further comprising the steps of:

drawing the translated data for verification, editing and output as a completed measured drawing of the building, site, or structure.

4. The method of claim 3 further comprising the steps of:

exporting the measured drawing of the building and its components to a file or directly to another computer aided drawing application.

5. The method of claim 1 wherein said step of acquiring data includes using the knowledge base to intelligently infer data and mandate user compliance in using a data input interface.

6. The method of claim 1 wherein said step of receiving data includes determining for a first level, space, or object, a component type and a set of measured values associated with the physical attributes of said first level, space, or object.

7. The method of claim 6 wherein said component type is any of a level, area, room, wall, line, or object of the building, site or structure.

8. The method of claim 2 wherein said step of parsing comprises:

accessing a data entry in the database;

reading the component type of the level, space, object, or component defined by said data entry;

reading the measured values of the level, space, object, or component defined by said data entry;

reading the relationship of said first level, space, object, or component to a second level, space, object, or component; and

,

determining the physical attributes of said level, space, object, or component, and the relative spatial location of said level, space, object, or component with respect to a second level, space, object, or component.

9. The method of claim 8 wherein said step of determining includes referencing a knowledge base of components wherein said knowledge base includes an entry for said component type, and wherein said entry defines how the physical attributes of said level, space, object, or component are related to the measured values of each level, space, object, or component.

10. The method of claim 9 wherein said knowledge base includes drawing attributes of each level, space, object, or component that are used in creating a drawing containing said level, space, object, or component.

11. The method of claim 10 wherein said step of translating includes:

generating commands to a drawing program communicating the physical attributes of said level, space, object, or component, the relative spatial location of said level, space, object, or component, and the drawing attributes of said level, space, object, or component.

12. The method of claim 1, further comprising the steps of:

outputting a drawing of the building and its components.

13. The method of claim 12 wherein the drawing is a level draw drawing of a level of the building.

14. The method of claim 13 wherein said step of receiving data includes the steps of:

determining a first level, space, object, or component of the building associating a component type with said first level, space, object, or component

measuring a physical attribute of said first level, space, object, or component

determining a coordinate location of said first level, space, object, or component relative to a fixed origin;

determining a second level, space, object, or component of the building associating a component type with said second level, space, object, or component

measuring a physical attribute of said second level, space, object, or component

determining a coordinate location of said first level, space, object, or component relative to said second level, space, object, or component.

15. The method of claim 14 wherein said step of outputting includes:

displaying the components on a graphical screen to represent the spatial location and dimensions of said components as collected in the data.

17. The system of claim 16 further comprising:

a login interface to authorize a user to access the system.

18. The system of claim 16 wherein the input interface includes a touch-sensitive pad.

19. The system of claim 16 wherein the input interface may be used to connect an automatic measuring device to the recording device for the communication of measurement data.

20. The system of claim 19 wherein the automatic measuring device is a laser plane device with distance measurement logic.

16. A system for creating measured drawings of a structure comprising:

a portable data recorder device for recording information about the content and layout of objects in a building structure, said portable data recorder including

a data interface for acquiring data or allowing a user to enter data describing the components of a building, site, or structure, including any of the levels, spaces, or objects contained therein,wherein for any particular component the acquired data describing that component includes at least partial placement, orientation, or dimension information that relates that component to a previously acquired component;

a knowledge base for determine the remaining placement, orientation and or dimension information for the particular component;

a data storage storing the data describing the components as a plurality of hierarchically linked data entries, so that it can be parsed and used to create measured drawings; and

,

a drawing interface for parsing said set of entries of said database to determine the relative function and layout of objects in said building and translate the information into a drawing format.

21. A computer medium having stored thereon instructions that when interpreted by a processor of a computer system cause the system to:

acquire, either automatically or as user input, data describing the components of a building, site, or structure, including any of the levels, spaces, or objects contained therein, wherein for any particular component the acquired data describing that component includes at least partial placement, orientation, or dimension information that relates that component to a previously acquired component;

use a knowledge base to determine the remaining placement, orientation and or dimension information for the particular component; and

,

store the data describing the components as a plurality of hierarchically linked data entries, so that it can be parsed and used to create measured drawings.

22. The computer medium of claim 21 wherein said instructions for determining include instructions that cause the system to

reference a knowledge base of components wherein said knowledge base includes an entry for said component type, and wherein said entry defines how the physical attributes of said level, space, object, or component are related to the measured values of each level, space, object, or component.

23. The computer medium of claim 21 wherein said instructions includes instructions that cause the system to:

generate commands to a drawing program communicating the physical attributes of said level, space, object, or component, the relative spatial location of said level, space, object, or component, and the drawing attributes of said level, space, object, or component.

24. The computer medium of claim 21, further comprising instructions that cause the system to:

output a drawing of the building and its components.

26. The method of claim 25 wherein said building components include any of structural components and object components of the building.

27. The method of claim 26 wherein said building level, space, object, or component is a wall of the building.

28. The method of claim 25 wherein said first two adjoining components are the first wall level, space, object, or component and the last wall component of the area.

29. The method of claim 28 wherein said step of minimizing the error on the first two adjoining components causes the two components to join together, with the starting coordinate of the first wall component equal to the ending coordinate of the last wall component.

30. The method of claim 25 wherein said step of adjusting to minimize the errors includes the steps of

calculating an error function;

adjusting the position of the components;

recalculating the error function;

repeating said steps of adjusting and recalculating until the error function is minimized; and

,

returning the adjusted position of the components.

31. The method of claim 30 wherein the error function may be specified to include preferences for the possibility of certain types of error over other types of error.

25. A method for optimally minimizing the error introduced by measurement of an area of a building, comprising the steps of:

retrieving data related to a plurality of building components of a drawing of a building area;

selecting a first two adjoining components of said building drawing;

minimizing the error on said first two adjoining components of the building drawing;

distributing the error over all other components of the building area;

adjusting the relative position of the other components to minimize the error; and

,

repeating the steps of selecting, minimizing and distributing until the error is satisfactorily distributed;

calculating the coordinates of each of said components in the final adjusted position; and

,

displaying the components as adjusted on a display device.

32. A method of authorizing a user in a distributed environment to use a software client application stored on the users local computing device, comprising the steps of:

establishing communication between a client application and a remote authorization server;

sending authorization parameters from the client application to the authorization server;

verifying the users authority to use said application.

33. The method of claim 32 further comprising:

signaling to the application stored on the local computer that the user has authority to use the application.

34. The method of claim 32 wherein said communication step is via the Internet.

35. The method of claim 34 wherein said communication step tests for the presence of the remote authorization server.

36. The method of claim 35 wherein said communication test pings the remote authorization server.

37. The method of claim 32 wherein said step of sending includes sending from the application the name of a specific project file to be used with the application, and wherein said step of verifying verifies the users authority to use said software application with said project file.

38. The method of claim 32 further comprising:

sending data concerning the specific project from the software application to the remote server.

39. The method of claim 32 further comprising:

sending data concerning the specific project from the remote server to the software application.