CN-122029567-A - Foreign matter detection device and foreign matter detection method

CN122029567ACN 122029567 ACN122029567 ACN 122029567ACN-122029567-A

Abstract

The foreign matter detection device (10) is a foreign matter detection device for detecting foreign matter contained in waste, and comprises an image acquisition unit (131) for acquiring an image captured by a camera that moves along with a work unit for performing a predetermined operation on the waste and captures an image of the periphery of the work unit, and a determination unit (132) for detecting a candidate of the foreign matter based on the image and determining the presence or absence of the foreign matter based on the detection result of the candidate of the foreign matter.

Inventors

ISHIGAKI YUSUKE
Nagaya Haoji
NISHINA YOSHIAKI
NAKAMURA YUICHI
MATSUMOTO MASAE
Shi Gezhengmin
IKAGAWA TORU

Assignees

杰富意钢铁株式会社

Dates

Publication Date: 20260512
Application Date: 20240822
Priority Date: 20231110

Claims (5)

1. A foreign matter detection device for detecting foreign matter contained in waste, characterized by comprising: an image acquisition unit that acquires an image captured by a camera that moves following a working unit that performs a predetermined operation on the waste and captures an image of the periphery of the working unit, and And a determination unit that detects the candidate of the foreign object based on the image, and determines the presence or absence of the foreign object based on a detection result of the candidate of the foreign object.
2. The foreign matter detection device of claim 1, wherein, The working unit is an arm of a heavy machine, and the camera is mounted on the heavy machine or the arm.
3. The foreign matter detection device of claim 1 or 2, wherein, The image is a plurality of images having different fields of view captured by the camera, The determination unit detects a candidate of the foreign object for each of the plurality of images, and determines whether the foreign object exists or not based on a detection result of the candidate of the foreign object in the plurality of images.
4. A foreign matter detection device according to claim 3, wherein, The image acquisition unit acquires the plurality of images at intervals of 30 seconds or less.
5. A foreign matter detection method for detecting a foreign matter contained in a waste material, comprising: Acquiring an image captured by a camera that moves following a working portion performing a predetermined operation on the scrap and captures an image of the periphery of the working portion, and And detecting the candidate of the foreign matter based on the image, and judging whether the foreign matter exists or not based on the detection result of the candidate of the foreign matter.

Description

Foreign matter detection device and foreign matter detection method Technical Field The present disclosure relates to a foreign matter detection device and a foreign matter detection method. The present disclosure relates to a foreign matter detection device and a foreign matter detection method for detecting a foreign matter contained in a waste material. Background In the production of iron and steel products, it is desired to increase the utilization of iron-based scrap as an iron raw material in order to reduce environmental load. In the dissolution of scrap in the production of steel products, it is necessary to remove foreign substances other than iron and foreign substances such as seals in advance. In order to remove foreign matter from the waste, it is necessary to determine the presence or absence of foreign matter in the waste. In recent years, an object recognition technique has been developed in which an object learned in advance by deep learning is discriminated from an image obtained by capturing an object. The object recognition technique can also be applied to detecting foreign matter from an image of waste as an object. For example, patent document 1 proposes a system for detecting a closure included in a collection of scrap iron using a camera installed in a scrap yard. Patent document 1 Japanese patent application laid-open No. 2021-86285 The technology of patent document 1 photographs, with a plurality of cameras, scrap iron accumulated in a scrap yard, scrap iron lifted by a crane, and scrap iron loaded on a truck or a ship, respectively. But the waste dump is large and there are multiple waste mountains. Therefore, it is difficult to photograph only the waste of the subject with the camera. In addition, when the object scrap is far from the camera, it is difficult to capture an image of the scrap with high accuracy, and thus the accuracy of detecting foreign matter from the captured image is lowered. Disclosure of Invention The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a foreign matter detection device and a foreign matter detection method capable of accurately discriminating a foreign matter from a captured image of a waste material to be detected. (1) A foreign matter detection device according to an embodiment of the present disclosure is a foreign matter detection device that detects a foreign matter contained in waste, and includes: an image acquisition unit that acquires an image captured by a camera that moves along with a work unit that performs a predetermined operation on the waste material and captures an image of the periphery of the work unit, and And a determination unit that detects the candidate of the foreign object based on the image, and determines the presence or absence of the foreign object based on a detection result of the candidate of the foreign object. (2) As one embodiment of the present disclosure, on the basis of (1), The working unit is an arm of a heavy machine, and the camera is attached to the heavy machine or the arm. (3) As one embodiment of the present disclosure, on the basis of (1) or (2), The image is a plurality of images having different fields of view captured by the camera, The determination unit detects a candidate of the foreign object for each of the plurality of images, and determines whether the foreign object exists or not based on a detection result of the candidate of the foreign object in the plurality of images. (4) As one embodiment of the present disclosure, on the basis of (3), The image acquisition unit acquires the plurality of images at intervals of 30 seconds or less. (5) A foreign matter detection method according to an embodiment of the present disclosure is a foreign matter detection method for detecting a foreign matter contained in a waste material, including: Acquiring an image captured by a camera that moves along with a working unit that performs a predetermined operation on the scrap and captures an image of the periphery of the working unit, and The candidate of the foreign matter is detected based on the image, and the presence or absence of the foreign matter is determined based on the detection result of the candidate of the foreign matter. According to the present disclosure, it is possible to provide a foreign matter detection device and a foreign matter detection method that can accurately determine a foreign matter from a captured image of a waste material of an object. Drawings Fig. 1 is a schematic diagram showing a configuration example of a foreign matter detection system including a foreign matter detection device according to an embodiment of the present disclosure. Fig. 2 is a flowchart showing a process of a foreign matter detection method according to an embodiment of the present disclosure. Fig. 3 is a diagram showing an example of N images. Detailed Description Hereinafter, a foreign matter detection device 10 (see fi