Spatter counting method, computer program, and spatter counting device

Patent metadata

Field	Value
Publication number	US-12103120-B2
Application number	US-201917043240-A
Country	US
Kind code	B2
Filing date	Apr 17, 2019
Priority date	Apr 20, 2018
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

One object of the present invention is to provide a technique capable of counting the spatters by a simple method while suppressing costs, and the present invention provides a spatter counting method performed by a portable terminal device provided with an image capturing device comprising: an image capturing step of capturing a moving image of an area including spatters generated during welding: and a counting step of counting a number of the spatters captured in each still image constituting the moving image captured in the capturing step.

First claim

The invention claimed is:

1. A spatter counting method performed by a portable terminal device provided with a processor, an image capturing device, and a display device, the method comprising:
an image capturing step of in which the image capturing device captures a moving image of an area including spatters generated during welding;
an image processing step in which the processor performs binarization processing of the moving image;
a counting step in which the processor counts a number of the spatters captured in each still image constituting the moving image captured in the image capturing step after the binarization processing, each spatter being an area having a black and white gradation equal to or higher than a first threshold value, being composed of adjacent pixels having a black and white gradation equal to or higher than the first threshold value, and having a size equal to or less than a second threshold value; and
a display control step in which the display device displays the moving image, the number of the spatters counted in each still image in the counting step in association with each other, and a statistical value of the number of the spatters,
wherein the number of the spatters in each still image is displayed in the form of a graph.

2. The spatter counting method according to claim 1 ,
wherein the spatter counting method further comprises a setting step of setting a time zone for counting the number of the spatters in a capturing time of the moving image, and
in the counting step, the number of the spatters is counted in each still image constituting the moving image in the time zone set in the setting step.

3. The spatter counting method according to claim 1 ,
wherein a shutter speed of the image capturing device which is configured to capture the area in the image capturing step is in a range of 1/400 second to 1/800 second.

4. The spatter counting method according to claim 1 ,
wherein ISO sensitivity of the image capturing device which is configured to capture the area in the image capturing step is a value at which the spatters captured in the still image can be highlighted.

5. The spatter counting method according to claim 1 ,
wherein the spatter counting method further comprises:
an output step of outputting the number of the spatters counted in the counting step as a file of a predetermined file format in each still image; and
a communication step of transmitting the file to another device.

6. A non-transitory computer readable medium configured to cause a computer having an image capturing device and a display device and functioning as a portable terminal device to:
execute an image capturing step in which the image capturing device captures a moving image of an area comprising spatters generated during welding;
execute an image processing step in which the computer performs binarization processing of the moving image;
a counting step in which the computer counts a number of the spatters captured in each still image constituting the moving image captured in the image capturing step after the binarization processing, each spatter being an area having a black and white gradation equal to or higher than a first threshold value, being composed of adjacent pixels having a black and white gradation equal to or higher than the first threshold value, and having a size equal to or less than a second threshold value; and
a display control step in which the display device displays the moving image, the number of the spatters counted in each still image in the counting step in association with each other, and a statistical value of the number of the spatters,
wherein the number of the spatters in each still image is displayed in the form of a graph.

7. The non-transitory computer medium according to claim 6 ,
wherein the non-transitory computer medium is further configured to cause the computer to execute a setting step of setting a time zone for counting the number of the spatters in a capturing time of the moving image, and
in the counting step, the number of the spatters is counted in each still image constituting the moving image in the time zone set in the setting step.

8. The non-transitory computer readable medium according to claim 6 ,
wherein a shutter speed of the image capturing device which is configured to capture the area in the image capturing step is in a range of 1/400 second to 1/800 second.

9. The non-transitory computer readable medium according to claim 6 ,
wherein ISO sensitivity of the image capturing device which is configured to capture the area in the image capturing step is a value at which the spatters captured in the still image can be highlighted.

10. The non-transitory computer readable medium according to claim 6 ,
wherein the non-transitory computer readable medium is further configured to cause the computer to execute an output step of outputting the number of the spatters counted in the counting step as a file of a predetermined file format in each still image, and
a communication step of transmitting the file to another device.

11. A spatter counting device which is a portable terminal device comprising:
an image capturing device configured to capture a moving image of an area including spatters generated during welding;
an image processing unit configured to binarize the moving image; and
a counting unit configured to count a number of the spatters captured in each still image constituting the moving image captured by the image capturing device after the moving image is binarized, each spatter being an area having a black and white gradation equal to or higher than a first threshold value, being composed of adjacent pixels having a black and white gradation equal to or higher than the first threshold value, and having a size equal to or less than a second threshold value;
a display unit; and
a display control unit configured to display the moving image, the number of the spatters counted in each still image by the counting unit in association with each other, and a statistical value of the number of the spatters on the display unit,
wherein the display control unit is configured to display number of the spatters in each still image on the display unit in the form of a graph.

12. The spatter counting device according to claim 11 ,
wherein the spatter counting device further comprise a setting unit which is configured to set a time zone for counting the number of the spatters in a capturing time of the moving image, and
the counting unit count the number of the spatters in each still image constituting the moving image in the time zone set by the setting unit.

13. The spatter counting device according to claim 11 ,
wherein a shutter speed of the image capturing device which is configured to capture the area is in a range of 1/400 second to 1/800 second.

14. The spatter counting device according to claim 11 ,
wherein ISO sensitivity of the image capturing device which is configured to capture the area is a value at which the spatters captured in the still image can be highlighted in the spatter counting device.

15. The spatter counting device according to claim 11 ,
wherein the spatter counting device further comprise:
an output unit which is configured to output the number of the spatters counted by the counting unit as a file of a predetermined file format in each still image; and
a communication unit which is configured to transmit the file to another device.

Assignees

• Taiyo Nippon Sanso Corp

Inventors

• Ando Koji
• Sasaki Tomoaki
• Wada Katsunori
• NANAO Yusaku

Classifications

• B23K9/32

  Accessories · CPC title

• B23K9/093

  the frequency of the pulses produced being modulable · CPC title

• B23K31/125

  Weld quality monitoring · CPC title

• B23K9/0956 Primary

  using sensing means, e.g. optical · CPC title

• B23K9/0953 Primary

  using computing means · CPC title