Component position verification using a probe apparatus

• US 6,195,618 B1
• Filed: 10/15/1998
• Issued: 02/27/2001
• Est. Priority Date: 10/15/1998
• Status: Expired due to Term

• Current Assignee: Microscribe, LLC
• Original Assignee: Microscribe, LLC
• Inventors: Rosenberg, Louis B., Riegel, James R.
• Primary Examiner(s): WACHSMAN, HAL D
• Application Number:
  US09/173,223
• Time in Patent Office: 866 Days
• Field of Search: 702/150-153, 702/155, 702/158, 702/33, 702/35, 702/36, 702/81-84, 702/94, 702/95, 702/127, 702/128, 702/163, 702/166-168, 702/183, 702/FOR.146, 702/FOR.147, 702/FOR.170, 702/FOR.171, 702/FOR.123, 702/FOR.125, 702/FOR.137, 702/FOR.141, 702/FOR.144, 702/FOR.145, 700/58, 700/65, 700/66, 700/109, 700/110, 700/114-116, 700/117, 700/121, 700/124, 700/125, 700/186, 700/192-195, 700/245, 700/257, 700/258, 700/264, 700/302, 700/303, 382/145-147, 382/149-152, 324/537, 324/754, 324/764, 324/756-758, 33/1.MP, 33/1.PT, 335/59, 335/03--05, 335/53, 738/658, 738/665, 345/156, 345/157, 345/158, 345/162, 345/178, 345/179, 901/44, 901/45, 901/46, 901/33, 901/15, 901/10.6, 438/14-16, 438/7, 438/10, 438/12, 438/107, 438/129, 438/FOR.142, 228/8-12, 297/99, 297/91, 297/40, 297/41, 297/42, 297/20, 297/09--13, 414/935-938
• US Class Current: 702/152
• CPC Class Codes: G01B 21/04 by measuring coordinates of points
• CPC Class Codes: G06F 17/00 Digital computing or data processing equipment or methods, specially adapted for specific functions information retrieval, database structures or file system structures therefor G06F16/00
• CPC Class Codes: G06K 17/0029 the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers

Abstract

Method and system for checking and verifying the positions of components on an object such as a circuit board using a probe apparatus. A component of the object, positioned at a particular location on the object, is selected by the user using the probe apparatus. Reference information about a correct component positioned at the location of the selected component is displayed or otherwise provided, and the displayed reference information is compared with the selected component to determine if the selected component is of the correct type and value. Preferably, the selecting is accomplished by moving a probe tip of the probe apparatus within a predetermined distance of the selected component and activating a control, such as a button. The user can initiate a verify signal or a failure signal depending on whether the selected component matches the reference information.

Claims

1. A method for providing verification information about physical components of an object, the method comprising:

receiving position information from a probe apparatus manually positioned by a user, said position information describing a particular location on an object placed in a workspace volume of said probe apparatus, wherein a particular one of said physical components is positioned at said particular location on said object, and wherein said object includes a plurality of said physical components, each positioned at a different location on said object;

accessing reference data for a desired component layout of said object, said reference data including descriptive information about a desired component desired to be provided at said particular location described by said position information received from said probe apparatus, said descriptive information including a description of a type of said desired component to be positioned at said particular location; and

providing said descriptive information about said desired component to allow a comparison between said type of said desired component and a type of said particular physical component positioned at said particular location on said object.

2. A method as recited in claim 1 wherein said object is a printed circuit board and said physical components include circuit board components.

3. A method as recited in claim 2 further comprising receiving a signal from said probe apparatus indicating whether an electrical connection exists between two leads on a probe tip of said probe apparatus, wherein said probe tip is contacted by said user to an electrical trace on said printed circuit board.

4. A method as recited in claim 2 wherein said descriptive information about said desired component includes a value associated with said desired component, and wherein said comparison is also between said value associated with said desired component and a value associated with said physical component.

5. A method as recited in claim 2 further comprising receiving position information from said probe apparatus indicating a location of said printed circuit board in three-dimensional space.

6. A method as recited in claim 5 wherein said position information indicating a location of said printed circuit board in three-dimensional space includes at least two points.

7. A method as recited in claim 5 further comprising determining an origin of said printed circuit board and correlating said origin with a reference origin for said reference data.

8. A method as recited in claim 2 further comprising repeating said receiving position information, accessing reference data, and providing said descriptive information for a different location on said printed circuit board.

9. A method as recited in claim 1 wherein said position information includes raw angle data from sensors of said probe apparatus, and further comprising determining coordinates from said raw angle data, said coordinates indicating said particular location on said object.

10. A method as recited in claim 1 wherein said providing said descriptive information includes outputting said descriptive information to said user.

11. A method as recited in claim 10 wherein said outputting said descriptive information includes displaying said descriptive information on a display screen.

12. A method as recited in claim 10 wherein said outputting said descriptive information includes outputting audio signals to said user.

13. A method as recited in claim 1 further comprising determining if said particular location has previously been received as position information, and outputting an indication to said user that said particular physical component has already been checked if said particular location has previously been received.

14. A method as recited in claim 1 wherein said comparison between said type of said desired component and said type of said particular physical component is performed by said user after receiving said provided descriptive information.

15. A method as recited in claim 14 further comprising receiving a failure signal initiated by said user when said type of said desired component does not match said type of said particular physical component.

16. A method as recited in claim 15 further comprising storing data associated with said particular location indicating that a match exists or does not exist between said types of said desired component and said particular physical component.

17. A method as recited in claim 1 wherein said receiving position information, accessing reference data and providing said descriptive information are performed by a host computer coupled to said probe apparatus, and wherein said comparison between said type of said desired component and said type of said particular physical component is performed by said host computer.

18. A method as recited in claim 17 wherein said comparison is performed by reading identifying information from said particular physical component using a sensor included on said probe apparatus said identifying information indicating said type of said physical component.

19. A method as recited in claim 18 wherein said sensor includes a bar code reader operative to read a bar code positioned on said particular physical component.

20. A method as recited in claim 17 further comprising storing verify or failure information for said particular physical component indicating that a match exists or does not exist between said types of said desired component and said particular physical component.

21. A method as recited in claim 1 further comprising receiving a verify signal initiated by said user when said type of said desired component matches said type of said particular physical component.

22. A method for checking components of an object, the method comprising:

placing said object in a workspace volume of a probe apparatus, said probe apparatus operative to provide three-dimensional position information to a computer coupled to said probe apparatus;

selecting one of said components of said object using said probe apparatus, said selected component being positioned at a particular location on said object; and

comparing at least one characteristic of said selected component with reference information about a correct component displayed from information provided by said computer, said correct component being desired to be positioned at said particular location of said selected component, wherein said reference information includes a description of a desired type of said correct component to be positioned at said particular location of said selected component.

23. A method as recited in claim 22 wherein said object is a printed circuit board and said components include circuit board components.

24. A method as recited in claim 23 wherein said probe apparatus is moved and operated manually by a user, wherein said selecting one of said components of said object using said probe apparatus includes selecting a trace between two leads of said probe apparatus, and wherein said comparing at least one characteristic of said selected component with reference information includes verifying an electrical connection exists between said two leads.

25. A method as recited in claim 22 further comprising providing an object location to said computer using said probe apparatus, said object location being in three-dimensional space.

26. A method as recited in claim 25 wherein said object location is provided as at least two points in three-dimensional space to said computer.

27. A method as recited in claim 22 wherein said selecting one of said components is accomplished by a user moving a probe tip of said probe apparatus within a predetermined distance of said selected component, wherein said predetermined distance can be greater than zero to allow selection when said probe tip is not contacting said selected component.

28. A method as recited in claim 22 wherein said selecting is accomplished by a user moving a probe tip of said probe apparatus within a predetermined distance of said selected component and by said user activating a control on said probe apparatus while said probe tip is within said predetermined distance of said selected component.

29. A method as recited in claim 28 further comprising initiating a failure signal to said computer if said at least one characteristic of said selected component does not match said reference information about said correct component.

30. A method as recited in claim 29 further comprising initiating a verify signal to said computer if said at least one characteristic of said selected component matches said reference information about said correct component.

31. A method as recited in claim 22 wherein said probe apparatus includes an arm linkage having a plurality of joints.

32. A method for providing verification information about components of an object, the method comprising:

receiving position information from a probe apparatus manually positioned by a user, said position information describing a particular location on an object placed in a workspace volume of said probe apparatus, wherein a physical component is positioned at said particular location on said object;

accessing reference data for a desired component layout of said object, said reference data including descriptive information about a desired component desired to be provided at said particular location described by said position information received from said probe apparatus, wherein said descriptive information describes at least one characteristic of said desired component, said at least one characteristic including a type of said desired component; and

outputting said descriptive information about said desired component to allow a user to compare said at least one characteristic of said desired component with a corresponding at least one characteristic of said physical component positioned at said particular location on said object.

33. A method as recited in claim 32 wherein said object is a printed circuit board and said components include circuit board components.

34. A method as recited in claim 33 wherein said descriptive information about said desired component includes a value associated with said desired component.

35. A method as recited in claim 32 wherein said outputting said descriptive information includes displaying said descriptive information on a display screen.

36. A method as recited in claim 32 further comprising receiving a verify signal initiated by said user when said at least one characteristic of said desired component matches said corresponding at least one characteristic of said physical component.

37. A method as recited in claim 36 further comprising receiving a failure signal initiated by said user when said at least one characteristic of said desired component does not match said corresponding at least one characteristic of said physical component.