Object dimensioning system and related methods

• US 9,581,432 B2
• Filed: 12/22/2014
• Issued: 02/28/2017
• Est. Priority Date: 02/08/2011
• Status: Active Grant

• Current Assignee: Quantronix Incorporated (Schneider Electric SE)
• Original Assignee: Quantronix Incorporated (Schneider Electric SE)
• Inventors: Kennington, Robert L., Carlsruh, Eve A., Bailey, Craig R., Midboe, Marie L., Taylor, Brandon M., Neilson, Randy B.
• Primary Examiner(s): Ton, Tri T
• Application Number:
  US14/579,901
• Publication Number:
  US 20150103335A1
• Time in Patent Office: 799 Days
• US Class Current: 1/1
• CPC Class Codes: G01B 11/02 for measuring length, width or thickness G01B11/08 takes precedence
• CPC Class Codes: G01B 11/14 for measuring distance or clearance between spaced objects or spaced apertures G01B11/26 takes precedence; rangefinders G01C3/00
• CPC Class Codes: G01B 17/00 Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
• CPC Class Codes: G01G 19/002 for postal parcels and letters
• CPC Class Codes: G01G 19/005 with electric or electronic computing means

Abstract

A method and apparatus for dimensioning and, optionally, weighing an object. A platform with a surface is used for supporting an object. A user selects between two different dimensioning devices of the apparatus. The first device employs three distance sensors to determine a distance between each of the distance sensors and a side of an object. The second device includes a movable gate that is passed over and about an object or objects on the platform. Sensor arrays, such as paired, aligned light emitter and receiver arrays, are used in combination with a plurality of sensed gate positions to determine the dimensions of the objects(s) as the gate passes around the object(s) based on whether or not light from an emitter on one side of the gate reaches a light receiver on another, opposing side of the gate.

Claims

1. An apparatus for determining dimensions of an object, comprising:

a platform having a horizontal surface for supporting an object thereon; and

a dimensioning device comprising a gate configured as a frame having an upper arm above the platform opposite a lower arm below the platform and having opposing side supports extending vertically between the upper arm and lower arm, wherein the gate is mounted for rotational movement in a horizontally traversing arc to enable the upper and lower arms to respectively and simultaneously pass over and under the platform, and wherein the arms of the gate respectively carry a plurality of mutually aligned emitters and receivers and wherein the side supports of the gate respectively carry a plurality of mutually aligned emitters and receivers.

2. The apparatus of claim 1, further comprising a hinge device supporting the gate and enabling rotation of the gate in the movement in the horizontally traversing arc.

3. The apparatus of claim 2, wherein the hinge device enables rotation of the gate about a substantially vertical axis of rotation at least adjacent a side support.

4. The apparatus of claim 3, wherein the platform comprises two mutually perpendicular linear edges having proximate ends meeting at a corner adjacent the vertical axis of rotation, and a curved edge remote from the axis of rotation and extending between remote ends of each of the linear edges.

5. The apparatus of claim 1, wherein the platform is transparent, and the plurality of emitters comprises a plurality of light signal emitters on one of the upper arm and the lower arm and a plurality of light signal receivers on the other of the upper arm and the lower arm.

6. The apparatus of claim 5, wherein the plurality of emitters further comprises a plurality of light signal emitters on one of one side support and the opposing side support and comprises a plurality of light signal receivers on the other of the one side support and the opposing side support.

7. The apparatus of claim 1, wherein the plurality of emitters comprises a plurality of light signal emitters configured in one or more rows of equally spaced light emitters and wherein the plurality of light signal receivers is configured in one or more rows of equally spaced light receivers, an arrangement of the one or more rows of light signal receivers mirroring an arrangement of the one or more rows of light signal emitters.

8. The apparatus of claim 7, wherein the plurality of light signal emitters is configured in two or more rows, and wherein light signal emitters of each row of light signal emitters are longitudinally offset from light signal emitters of any adjacent row of light signal emitters.

9. The apparatus of claim 7, wherein each light signal emitter is individually operable independent from any other light signal emitter.

10. The apparatus of claim 7, wherein each light signal emitter in a common row is equally spaced at between about 3 mm and about 5 mm apart.

11. The apparatus of claim 7, wherein each row of light signal emitters is equally laterally spaced from any adjacent row of light signal emitters at between about 6 mm and about 8 mm apart.

12. The apparatus of claim 7, further comprising physical masking filters associated with at least one of the plurality of light signal emitters and the plurality of light signal receivers, the physical masking filters located and configured to block light unassociated with a respective light signal emitter as received by an aligned light signal receiver.

13. The apparatus of claim 1, wherein the plurality of emitters comprises light emitting diodes (“

LEDs”

).

14. The apparatus of claim 1, further comprising a rotational sensor configured to detect rotational positions of the gate within the horizontally traversing arc.

15. The apparatus of claim 14, further including an electronic computing device for calculating one or more of a spatial volume and a dim-weight of an object responsive to input from the receivers in combination with associated rotational positions within the horizontally traversing arc detected by the rotational sensor.

16. The apparatus of claim 1, further comprising a weight measuring device located and configured to measure a weight of an object situated on the platform.

17. The apparatus of claim 16, wherein the weight measuring device supports the platform independent of the dimensioning device.

18. The apparatus of claim 17, wherein the weight measuring device comprises only three load cells supporting a scale frame carrying the platform.

19. A method for determining dimensions of one or more objects using a dimensioning device comprising a structure bearing dimensioning sensors including horizontally and vertically mounted cooperative beam emitters and receivers and mounted for movement in an arc in a plane of a substantially transparent platform, the method comprising:

placing one or more objects on a surface of the substantially transparent platform;

measuring dimensions of the one or more objects using the dimensioning device by moving a frame structure in an arc of movement in the plane of the substantially transparent platform and about the one or more objects while emitting beams from beam emitters at a plurality of rotational positions of the structure within the arc of movement to cause the beams to be interrupted by the one or more objects and detecting the interruptions by the cooperative receivers at the plurality of rotational positions, uninterrupted beams from the horizontally mounted beam emitters passing through the substantially transparent platform to the cooperative, horizontally mounted receivers;

retrieving data responsive to the detected interruptions from the receivers of the dimensioning sensors in association with the plurality of rotational positions; and

determining dimensions of the one or more objects based on a correlation between the plurality of rotational positions of the structure and the associated data.

20. The method of claim 19, wherein placing one or more objects on the surface of the substantially transparent platform comprises placing multiple disjoint objects on the surface and determining the dimensions of each of the multiple disjoint objects based on a correlation between the plurality of rotational positions of the structure and the associated data.

21. The method of claim 19, further comprising determining a weight of the one or more objects substantially concurrently with measuring the dimensions thereof.

22. The method of claim 19, further comprising calculating one or more of a spatial volume of the one or more objects from the determined dimensions and calculating a dim-weight for the one or more objects.

23. The method of claim 19, wherein emitting beams further comprises sequentially turning on one or more non-adjacent beam emitters in a first row of beam emitters at each of the plurality of rotational positions.

24. The method of claim 19, wherein measuring the dimensions of the object further comprises sequentially turning on one or more non-adjacent beam emitters in a first row of beam emitters before sequentially turning on one or more non-adjacent beam emitters in a second row of beam emitters.