Material transport in-motion product dimensioning system and method

• US 20050240317A1
• Filed: 04/18/2005
• Published: 10/27/2005
• Est. Priority Date: 04/16/2004
• Status: Active Grant

• Current Assignee: Rice Lake Weighing Systems, Inc.
• Original Assignee: Acme Scale Company, Inc
• Inventors: Kienzle-Lietl, Kathleen G.
• Granted Patent: US 7,757,946 B2
• Time in Patent Office: Days
• US Class Current: 700/303
• CPC Class Codes: G01B 11/00 Measuring arrangements characterised by the use of optical techniques
• CPC Class Codes: G01G 9/00 Methods of, or apparatus for, the determination of weight, not provided for in groups G01G1/00 - G01G7/00

Abstract

Methods, systems, and devices to obtain dimensions of an article or product in association with material handling vehicles are disclosed. A dimension detection device is installed in an enclosure and is used to acquire geometrical dimensions of the object in association with the vehicle. A predetermined dimension of the vehicle is subtracted from the overall detected dimension to determine the dimensions, including weight, of the product alone. One or more dimension detection devices may also be positioned on a mast or other portion of the material handling vehicle allowing the material handling vehicle to act as a mobile product dimensioning system.

Claims

1. A system for dimensioning an article, the system comprising:

a passage, the passage defining a space sufficient to allow passage of a material handling vehicle, the material handling vehicle having at least one known dimension;

at least one dimension detection device for determining a combination dimension, the combination dimension being an aggregate dimension of the article and the material handling vehicle; and

a computer system in communication with the at least one dimension detection device, the computer system being adapted to determine at least one dimension of the article by subtracting the known dimension from the combination dimension.

2. The system of claim 1, further comprising the at least one dimension detection device being positioned along the passage.

3. The system of claim 1, further comprising the at least one dimension detection device being one or more of a laser scanner, a radio-frequency sensor, an ultrasound sensor, an inductive capacitance sensor, a magnetic proximity sensor, a magnetic cylinder sensor, a photoelectric switch, a contrast luminescence scanner, a color sensor, a fork photoelectric switch, a light grid, a distance sensor, a position finder, a light-section sensor, a vision capture, and a camera.

4. The system of claim 1, further comprising a machine readable code on the material handling vehicle, the machine readable code being for one of identifying the material handling vehicle to retrieve the known dimension and communicating the known dimension.

5. The system of claim 4, further comprising the machine readable code being one of a barcode and an RFID.

6. The system of claim 1, further comprising an identifiable substance positioned along the boundaries of one of the material handling vehicle and the article, the identifiable substance being detectable by the at least one dimension detection device to discriminate between the article and material handling vehicle.

7. The system of claim 6, further comprising the identifiable substance being one of a fluorescent paint, a reflective paint, and a marker tape.

8. The system of claim 1, further comprising the material handling vehicle being one of a fork lift, a lift truck, a flat bed, and a pallet truck.

9. A system for dimensioning an article, the system comprising:

a material handling vehicle,

at least one dimension detection device attached to a portion of the material handling vehicle, the dimension detection device positioned to detect at least one dimension of the article when the article is loaded onto the material handling vehicle; and

a computer system in communication with the at least one dimension detection device, the computer system being adapted to determine at least one dimension of the article.

10. The system of claim 9, further comprising the portion of the material handling vehicle being a mast.

11. A system for dimensioning an article, the system comprising:

a passage, the passage defining a space sufficient to allow passage of a material handling vehicle, the material handling vehicle having at least one known dimension;

at least one dimension detection device for determining a combination dimension, the combination dimension being an aggregate dimension of the article and the material handling vehicle; and

a program module in communication with the at least one dimension detection device, the program module being adapted to determine at least one dimension of the article by subtracting the known dimension from the combination dimension.

12. A method of dimensioning an article, the method comprising the steps of:

providing a passage, the passage defining a space sufficient to allow passage of a material handling vehicle, the material handling vehicle having at least one known dimension;

providing at least one dimension detection device associated with the passage;

detecting a combination dimension of the material handling vehicle and the article while passing the material handling vehicle through the passage; and

determining at least one dimension of the article by subtracting the known dimension from the combination dimension.

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

providing a machine readable code on the material handling device; and

reading the machine readable code to identify the material handling vehicle to retrieve the known dimension.

14. The method of claim 13, further comprising retrieving the known dimension from the machine readable code.

15. The method of claim 13, further comprising:

providing a computer system in communication with the at least one dimension detection device, the computer system being operative to store and retrieve at least one known dimension for at least one material handling vehicle.

retrieving the known dimension for the material handling vehicle from the computer system by identifying the material handling vehicle using the machine readable code.

16. A method of dimensioning an article, the method comprising the steps of:

providing a material handling vehicle having the article loaded thereon;

positioning an identifiable substance along the boundaries of one of the material handling vehicle and the article; and

discriminating between the article and the material handling vehicle by detecting the identifiable substance to detect a dimension of the article.

17. The method of claim 16, further comprising:

providing a passage, the passage defining a space sufficient to allow passage of the material handling vehicle;

positioning a material detection device along the passage; and

performing the step of discriminating between the article and the material handling vehicle to detect a dimension of the article as the material handling vehicle passes through the passage.

18. The method of claim 16, further comprising providing a material detection device on a portion of the material handling vehicle and performing the step of discriminating between the article and the material handling vehicle to detect a dimension of the article when the article is loaded onto the material handling vehicle.

19. The method of claim 18, further comprising detecting a dimension of the article while the material handling vehicle is in motion.

20. A method of dimensioning an article, the method comprising the steps of:

providing a material handling vehicle;

positioning at least one dimension detection device on a portion of the material handling vehicle; and

detecting at least one dimension of the article using the at least one dimension detection device.

21. The method of claim 20, further comprising using the at least one dimension to determine at least one of a shipping weight, a freight classification, a compliance with a government regulation, a compliance with a customs rule, and a cargo space requirement.