Method and device for detecting the edge profile of bottles or similar containers

Patent metadata

Field	Value
Publication number	US-9909861-B2
Application number	US-99542409-A
Country	US
Kind code	B2
Filing date	May 19, 2009
Priority date	Jun 25, 2008
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

The invention relates to a method and device for detecting the edge profile of bottles or similar containers that are moved past a measuring and/or receiving region of a measuring and/or receiving system, using at least one opto-electric receiver on one side of the measuring and/or receiving region and using at least one light-emitting device on the side located opposite of the receiver in the measuring and/or receiving region.

First claim

The invention claimed is:

1. A method for detecting edge profiles of containers moved past a measuring and/or recording region of a measuring and/or recording system using at least one optoelectric receiver on one side of the measuring and/or recording region and at least one light-transmitting device located opposite the optoelectric receiver in the measuring and/or recording region, said method comprising using the at least one light-transmitting device, generating a parallel or substantially parallel light, directing said light onto a container moved through the measuring and/or recording region, using at least one optoelectric receiver, generating chronological line images of the container, and forming the edge profile of the container from the line images, wherein the at least one optoelectric receiver comprises line imaging means, wherein said method further comprises using the parallel light of the at least one light-transmitting device, generating an image on a display screen, and using the line imaging means, generating the line images from the image on the display screen.

2. The method of claim 1 , wherein generating an image of the container comprises generating a silhouette of the container.

3. The method of claim 1 , wherein generating line images of the container comprises generating line images with lines having a width of one pixel.

4. A method for detecting the edge profile of containers moved past a measuring and/or recording region of a measuring and/or recording system by using at least one optoelectric receiver on one side of the measuring and/or recording region and at least one light-transmitting device located opposite the receiver in the measuring and/or recording region, said method comprising using the at least one light-transmitting device to generate a parallel or substantially parallel light, directing said light onto a container moved through the measuring and/or recording region, and using the parallel light of the at least one light-transmitting device, generating an image of the container on a display screen, using one of the optoelectric receiver and an optoelectric camera, recording said image, wherein using the at least one light-transmitting device to generate light comprises delivering a light having a spectrum and modifying the spectrum of the light.

5. A method for detecting the edge profile of containers moved past a measuring and/or recording region of a measuring and/or recording system by using at least one optoelectric receiver on one side of the measuring and/or recording region and at least one light-transmitting device located opposite the receiver in the measuring and/or recording region, said method comprising using the at least one light-transmitting device to generate a parallel or substantially parallel light, directing said light onto a container moved through the measuring and/or recording region, and using the parallel light of the at least one light-transmitting device, generating an image of the container on a display screen, using one of the optoelectric receiver and an optoelectric camera, recording said image, said method further comprising detecting an edge profile of the container, wherein detecting the edge profile comprises modifying, at least once in a synchronous manner, at least one of the spectral region of the light of the at least one light-transmitting device, filters located in the path of the light, and a transmission characteristic of one of said filters.

6. A method for detecting the edge profile of containers moved past a measuring and/or recording region of a measuring and/or recording system by using at least one optoelectric receiver on one side of the measuring and/or recording region and at least one light-transmitting device located opposite the receiver in the measuring and/or recording region, said method comprising using the at least one light-transmitting device to generate a parallel or substantially parallel light, directing said light onto a container moved through the measuring and/or recording region, and using the parallel light of the at least one light-transmitting device, generating an image of the container on a display screen, using one of the optoelectric receiver and an optoelectric camera, recording said image, said method further comprising providing a display screen having a transmission characteristic such that said display screen is transparent only to a light incident from a predetermined direction.

7. The method of claim 6 , wherein recording said image comprises recording without color and gray scale values.

8. A device for detecting the edge profile of containers, said device comprising at least one optoelectric receiver on a side of a measuring and/or recording region, through which the containers are moved on a conveyor, the at least one optoelectric receiver including line imaging means for recording line images, at least one light-transmitting device located opposite the receiver on the measuring and/or recording region the at least one light-transmitting device being configured for generating substantially parallel light that penetrates the measuring and/or recording region and is directed onto the at least one receiver, wherein the at least one optoelectric receiver has associated therewith a display screen on which an image of the container is generated using the parallel light generated by the at least one light-transmitting device, and wherein the line imaging means is located in a beam path following the display screen.

9. A device for detecting the edge profiles of containers, said device comprising: at least one optoelectric receiver on one side of a measuring and/or recording region, through which the containers are moved on a conveyor, at least one light-transmitting device located opposite the receiver at the measuring and/or recording region, the at least one light-transmitting device being configured for generating substantially parallel light that penetrates the measuring and/or recording region and is directed onto the optoelectric receiver, wherein the at least one optoelectric receiver has associated therewith a display screen on which an image of a container is generated by using the parallel light generated by the at least one light-transmitting device, and wherein the at least one optoelectric receiver comprises a camera located in the path of the beam following the display screen, said device further comprising optical filters located in a beam path of the light generated by the at least one light-transmitting device, the optical characteristics of said optical filters being adaptable to modify the light spectrum of the light-transmitting device.

10. The device according to claim 9 , further comprising: an additional measuring and/or recording region through which containers are moved in a conveyor, and at least one of an additional light-transmitting device configured for generating substantially parallel light through said additional measuring and/or recording region and an additional optoelectric receiver on one said additional measuring and/or recording region.

11. The device according to claim 9 , wherein the at least one light-transmitting device comprises at least one of at least one substantially punctiform light source and at least one lens system for generating the parallel light, and at least one light source for delivering a light that has a modified spectrum.

12. The device according to claim 9 , wherein the display screen has a transmission characteristic such that said display screen is only transparent to light incident from a pre-determined direction.

13. The device according to claim 9 , wherein the at least one light source comprises a plura

Assignees

• Buchwald Carsten
• Schorn Wolfgang
• Khs Gmbh

Inventors

• Buchwald Carsten
• Schorn Wolfgang

Classifications

• G01B11/2433 Primary

  for measuring outlines by shadow casting · CPC title

• B67C3/007

  Applications of control, warning or safety devices in filling machinery (flow-control B67C3/28) · CPC title

• G01N21/9036

  using arrays of emitters or receivers · CPC title