# US 12,118,711 B2 · Image(s) to length conversion systems and methods

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- Number: US 12,118,711 B2
- Document ID: US12118711B2
- Status: Granted
- Kind: B2
- Application number: 17/451,035
- Filed: 2021-10-15
- Published: 2023-04-20
- Granted: 2024-10-15
- Earliest claimed: 2021-10-15
- Assignees: ContiTech Transportbandsysteme GmbH
- Applicants: ContiTech Transportbandsysteme GmbH
- Inventors: Michel Lortie
- Web page: https://patentgrep.com/patent/US12118711B2

## CPC

- G06T 7/001: {using an image reference approach}
- B65G 43/02: detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
- B65G 43/08: Control devices operated by article or material being fed, conveyed or discharged {(and controlling the discharging devices B65G47/42)}
- G01B 11/043: {for measuring length}
- G01L 5/105: using electro-optical means
- G01P 3/38: using photographic means
- G06F 3/044: by capacitive means
- G06F 3/0481: based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06T 1/0007: {Image acquisition}
- G06T 7/62: of area, perimeter, diameter or volume
- B65G 2203/041: Camera
- G06T 2207/10048: Infrared image
- G06T 2207/30164: Workpiece; Machine component
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)
- G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G})
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A measurement system includes an imaging device, a memory device, an interface and circuitry. The imaging device is configured to obtain a device image a conveyor belt system. The image device is configured to obtain a reference image of a reference point or reference measurement. The reference image can also be the device image. The memory device is configured to store the device image. The interface is configured to facilitate selection of points for a device/part to be measured. The circuitry comprises one or more processors configured to determine a reference measurement for the reference dimension based on the reference image via the interface; determine one or more device measurements based on the device image and the reference measurement; and calculate a plurality of device parameters based on the determined one or more device measurements. User input via a touch sensitive screen comprising a glass insulator coated with indium tin oxide (ITO) and the one or more processors can be configured to select the one or more device points based on change in capacitance at one or more locations of the touch sensitive screen.

## Claims

### Claim 1

A measurement system comprising:
an imaging device configured to obtain a device image for a first device;
the imaging device configured to obtain a reference image having a reference measurement;
a memory device configured to store the device image;
an interface; and
circuitry comprising one or more processors configured to:
select one or more device points of the device image;
determine a reference measurement for the reference dimension based on the reference image;
determine one or more device measurements based on the device image, the selected device points and the reference measurement;
calculate one or more device parameters based on the determined one or more device measurements; and
the first device being a conveyor belt system and comprising a first pulley, a second pulley spaced from the first pulley and a conveyor belt wrapped around the first pulley and the second pulley, and a drive motor configured to controllably rotate the first pulley.

### Claim 2 (depends on 1)

The system of claim 1, the interface being a network interface and configured to facilitate selection of the one or more device points.

### Claim 3 (depends on 1)

The system of claim 1, the imaging device being comprised within a mobile phone.

### Claim 4 (depends on 1)

The system of claim 1, the imaging device installed proximate a frame of a conveyor belt system.

### Claim 5 (depends on 1)

The system of claim 1, the reference dimension marked on a material and having a known length.

### Claim 6 (depends on 1)

The system of claim 1, the one or more system parameters comprising a number of sprocket teeth.

### Claim 7 (depends on 1)

The system of claim 1, the one or more system parameters comprising one or more of a diameter, a center distance, an angle, and a dead weight belt elongation.

### Claim 8 (depends on 1)

The system of claim 1, the one or more system parameters comprising linear misalignment and angular misalignment.

### Claim 9 (depends on 1)

The system of claim 1, the one or more system parameters comprising an angle misalignment of a portion of the conveyor belt.

### Claim 10 (depends on 1)

The system of claim 1, the one or more processors configured to select the one or more device points corresponding to a medium on the device image and on an additional device image having a time offset from the device image, determine the one or more device measurements at the time offset and determine a flow rate of the medium on the conveyor belt system.

### Claim 11 (depends on 1)

The system of claim 1, the one or more system parameters comprising a center distance, a belt length, a wrap angle, a belt tension and a belt life prediction.

### Claim 12 (depends on 1)

The system of claim 1, the one or more system parameters comprising a dead weight belt elongation.

### Claim 13 (depends on 1)

The system of claim 1, the imaging device configured to generate the system image using infra red wavelengths of about 50 to 1000 micrometers.

### Claim 14 (depends on 1)

The system of claim 1, the memory device further configured to store a plurality of previous device images.

### Claim 15 (depends on 1)

The system of claim 1, the reference measurement being a twelve inch mark.

### Claim 16 (depends on 1)

The system of claim 1, the one or more device points being selected using a touch sensitive screen.

### Claim 17

A measurement system comprising:
an imaging device configured to obtain a device image for a first device;
the imaging device configured to obtain a reference image having a reference measurement;
a memory device configured to store the device image;
an interface; and
circuitry comprising one or more processors configured to:
select one or more device points of the device image;
determine a reference measurement for the reference dimension based on the reference image;
determine one or more device measurements based on the device image, the selected device points and the reference measurement;
calculate one or more device parameters based on the determined one or more device measurements; and
the first device comprising an industrial fluid hose and the one or more parameters comprising a medium flow rate through the industrial fluid hose.

### Claim 18

A measurement system comprising:
an imaging device configured to obtain a device image for a conveyor belt system; and
circuitry comprising one or more processors configured to:
select one or more device points of the device image based on user input;
select a reference measurement for a reference dimension;
determine one or more device measurements based on the device image, the selected device points and the reference measurement;
calculate one or more device parameters based on the determined one or more device measurements; and
the user input via a touch sensitive screen comprising a glass insulator coated with indium tin oxide (ITO) and the one or more processors are configured to select the one or more device points based on change in capacitance at one or more locations of the touch sensitive screen.
