High security key scanning system

• US 9,818,041 B2
• Filed: 08/03/2016
• Issued: 11/14/2017
• Est. Priority Date: 08/03/2015
• Status: Active Grant

• Current Assignee: Hy-Ko Products Company
• Original Assignee: Hy-Ko Products Company
• Inventors: Mutch, William R., Fiore, Thomas F., Porras, Randall A., Thompson, Chester O. D.
• Primary Examiner(s): SHAH, UTPAL D
• Application Number:
  US15/227,619
• Publication Number:
  US 20170039447A1
• Time in Patent Office: 468 Days
• CPC Class Codes: B23C 2235/41 Scanning systems
• CPC Class Codes: B23C 3/35 Milling grooves in keys
• CPC Class Codes: B23P 15/005 keys making keys without essentially removing material, e.g. by punching B21D53/42; milling grooves in keys B23C3/35
• CPC Class Codes: G06V 10/141 Control of illumination
• CPC Class Codes: G06V 10/145 Illumination specially adapted for pattern recognition, e.g. using gratings
• CPC Class Codes: G06V 10/16 using multiple overlapping images; Image stitching
• CPC Class Codes: G06V 20/66 Trinkets, e.g. shirt buttons or jewellery items recognising microscopic objects G06V20/69
• CPC Class Codes: H04N 23/56 provided with illuminating means

Abstract

A high security key scanning system and method is provided. The scanning system may comprise a sensing device configured to determine information and characteristics of a master high security key, and a digital logic to analyze the information and characteristics of the master key. The sensing device may be configured to capture information about the geometry of features cut into the surface of the master key. The logic may analyze the information related to that geometry and compare it to known characteristics of that style of high security key in order to determine the data needed to replicate the features on a new high security key blank. The system may be configured to capture the surface geometry using a camera or other imaging device. The system may utilize object coating techniques, illumination techniques, filtering techniques, image processing techniques, and feature extraction techniques to capture the desired features.

Claims

1. A high security key scanning system comprising:

an imaging device configured to capture at least one image of a portion of a first side of a blade of a high security master key,

a first light source positioned to direct light at a first angle towards the first side of said blade of the high security master key at an imaging position;

a second light source positioned to direct light at a second angle towards the first side of said blade of the high security master key at the imaging position;

a third light source positioned to direct light at a third angle towards the first side of said blade of the high security master key at the imaging position;

a fourth light source positioned to direct light at a fourth angle towards the first side of said blade of the high security master key at the imaging position;

wherein the first angle, the second angle, the third angle, and the fourth angle are different relative to a horizontal axis of the imaging position;

wherein said captured image reveals surface features formed into a face of at least a portion of said blade;

wherein the light sources are controlled to create different illumination scenarios onto the surface of the high security master key;

wherein said imaging device captures a plurality of images of the high security master key each from different illumination scenarios; and

a logic configured to analyze the plurality of captured images to determine characteristics of said surface features.

2. The key scanning system of claim 1, wherein said logic further compares said characteristics of said surface features with cut code data of known lock styles.

3. The key scanning system of claim 2, wherein said cut code data includes at least one of spacing dimensions and cut positions.

4. The key scanning system of claim 2, wherein said logic determines at least one cut position or at least one cut code of said high security master key.

5. The key scanning system of claim 4, wherein said cut position or said cut codes are used to replicate a high security key from a key blank.

6. The key scanning system of claim 1, wherein said high security master key is a sidewinder key.

7. The key scanning system of claim 1, wherein the first and second light sources are controlled to be individually turned on and off to direct light onto the surface of the high security master key.

8. The key scanning system of claim 1, further comprises a backlight positioned to direct light towards a second side, opposite the first side of the blade of the high security master key, the backlight configured for use with the logic for one or more of identifying the high security master key type, verifying if the high security master key is stationary, and determining the orientation of the high security master key.

9. The key scanning system of claim 1, wherein at least one of the first light source and the second light source directs collimated light towards the imaging position.

10. The key scanning system of claim 1, wherein said high security master key includes a pathway formed onto said blade of said high security master key.

11. The key scanning system of claim 10, wherein the logic analyzes said characteristics of said surface features in order to determine the formed pathway on the surface of said high security master key.

12. The key scanning system of claim 11, wherein the determined formed pathway is used to replicate the high security master key on a key blank.

13. A method for scanning a high security master key, said method comprising:

illuminating surface features formed onto a first side of a blade of said high security master key from a first angle wherein the step of illuminating surface features from a first angle is provided by a first light source;

illuminating surface features formed onto the first side of said blade of said high security master key from a second angle, wherein the step of illuminating surface features from the second angle is provided by a second light source;

illuminating surface features formed onto the first side of said blade of said high security master key from a third angle, wherein the step of illuminating surface features from the third angle is provided by a third light source;

illuminating surface features formed onto the first side of said blade of said high security master key from a fourth angle, wherein the step of illuminating surface features from the fourth angle is provided by a fourth light source, wherein the first angle, the second angle, the third angle, and the fourth angle are different relative to a horizontal axis of an imaging position;

controlling the first light source, the second light source, the third light source, and the fourth light source to create different illumination scenarios onto the surface features of the high security master key;

capturing a plurality of images of a portion of the illuminated surface of the blade of said high security master key from different illumination scenarios; and

determining characteristics of said surface features.

14. The method of claim 13, further comprising comparing said characteristics of said surface features with cut code data of known lock styles.

15. The method of claim 13, further comprising determining at least one cut code for said high security master key.

16. The method of claim 15, further comprising utilizing said at least one cut code to replicate said high security master key.

17. The method of claim 13, wherein the step of illuminating surface features from a first angle is provided by a first light source and the step of illuminating surface features from the second angle is provided by a second light source wherein the first light source and second light source are controlled to be on or off to create different illumination angles before capturing at least one image.

18. The method of claim 13, wherein said surface features are determined with a logic that is configured to analyze the plurality of images with said different illumination scenarios.

19. The method of claim 18, further comprising comparing said characteristics of said surface features with cut position data of known lock styles.

20. The method of claim 19, further comprising determining at least one cut position for said high security master key.

21. The method of claim 20, wherein said cut positions are represented by physical measurement values, the measurement values being determined by the logic.

22. The method of claim 21, further comprising replicating said high security master key by using said measurement values.

23. The method of claim 13, wherein said surface features include a pathway formed onto said blade of said high security master key.

24. The method of claim 23, further comprising analyzing said characteristics of said surface features in order to measure the pathway on the surface of said high security master key.

25. The method of claim 24, further comprising replicating said high security master key by using said measurement values.

26. The method of claim 13, further comprising backlighting said high security master key.

27. The method of claim 26, further comprising identifying a proper key blank associated with the high security master key.