KR-20260062369-A - Safety Management Method in Construction Site and System for the Same

KR20260062369AKR 20260062369 AKR20260062369 AKR 20260062369AKR-20260062369-A

Abstract

This document concerns safety management methods for construction sites and systems for such purposes. The proposed safety management method for a construction site comprises generating a 3D global coordinate map of the construction site; mapping a first object of a first area recognizable based on a camera of an excavator to the 3D global coordinate map; and mapping a second object of a second area recognizable based on a camera of the construction site to the 3D global coordinate map, wherein the second area includes an area not included in the first area.

Inventors

석영준
박용진

Assignees

에이치디한국조선해양 주식회사
에이치디현대인프라코어 주식회사
에이치디건설기계 주식회사

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (8)

Regarding safety management methods at construction sites, Generate a 3D global coordinate map of the above construction site; Mapping a first object of a first recognizable area based on the excavator's camera to the 3D global coordinate map; and It includes mapping a second object in a second area recognizable based on a camera at the construction site to the 3D global coordinate map, wherein The second region above includes a region not included in the first region, Safety management methods.
In Article 1, Determining whether the first target and the second target are the same target, If the first target and the second target are the same target, displaying only the first target among the first target and the second target on the 3D global coordinate map, Safety management methods.
In Article 1, Generating the above 3D global coordinate map is, Generate a 3D global map using LiDAR's SLAM (Simultaneously Localization And Mapping) method; and A method comprising generating a 3D global coordinate map by including coordinate information in the 3D global map through the RTK (Real Time Kinematic) sensor of the excavator. Safety management methods.
In Article 1, Mapping the above-mentioned first object to the above-mentioned 3D global coordinate map is, A method comprising mapping the 2D recognition details of the first target of the camera of the excavator to the 3D global coordinate map through a calibration matrix. Safety management methods.
In Article 4, The 2D perception details regarding the first object are determined by considering the heading angle information of the excavator identified through the IMU (Inertial Measurement Unit) of the excavator, Safety management methods.
In Article 1, Mapping the above second object to the above 3D global coordinate map is, Calculate 3D coordinates obtained by converting the above 3D global coordinate map into a distance map; Calculating 2D coordinates of the second target recognized in 2D based on the camera of the construction site; Includes mapping the above 3D coordinates and the above 2D coordinates based on a relationship equation based on camera parameters, Safety management methods.
In the safety management system of a construction site, A camera of an excavator capturing a first image of a recognizable first area; A camera at the construction site utilizing a second image of a recognizable second area; and A processor configured to generate a 3D global coordinate map of the construction site, map a first object recognized by the first image to the 3D global coordinate map, and map a second object recognized by the second image to the 3D global coordinate map, wherein The camera at the construction site is configured such that the second area includes an area not included in the first area. Safety management system.
A computer-readable recording medium storing a program for executing the safety management method according to Article 1 on a computer.

Description

Safety Management Method in Construction Site and System for the Same The following description pertains to safety management at construction sites, specifically to a safety management method and a system for efficiently reducing blind spots occurring in excavator camera image-based safety management systems. Research is underway on technology that utilizes object recognition from camera images for safety management at construction sites. For example, Registered Patent No. 2635901 (System and method for recognizing hazardous objects at a construction site using an AI robot) discloses a method for recognizing hazardous objects at a construction site using an AI robot. Specifically, the hazardous object recognition system at a construction site proposed in the said prior art discloses a position verification module that maps a movement path at a construction site to generate movement path information, an image information collection module that collects the situation of the construction site as image information, and a configuration that compares and analyzes the image information and work process information to determine whether a hazardous object exists in the work area or on the movement path of the construction site. However, since such technology utilizes separate AI robots, investment is required for its application at actual construction sites, and even with AI robots, there may be limitations in solving the blind spot issues described later. Figure 1 is a diagram illustrating current safety management methods and blind spot issues at construction sites. For safety management at a construction site, a system is being utilized in which a camera is mounted on equipment such as an excavator (110) and a worker (120a) is recognized through the camera image, without relying on a separate AI robot as described in the prior art above. However, there is a problem in that safety accidents occur involving workers (120b) who are not recognized by the equipment (110) due to structures, vehicles (130), etc. within the construction site. Figure 1 is a diagram illustrating current safety management methods and blind spot issues at construction sites. FIGS. 2 to 4 are drawings for explaining a safety management method for a construction site according to an embodiment of the present invention. FIGS. 5 to 7 are drawings for more specifically explaining a safety management method according to the embodiment described in FIG. 2. FIGS. 8 and 9 are drawings for explaining the concept of mapping and synthesizing a perceived object in a 3D global map according to an embodiment of the present invention. FIG. 10 is a drawing illustrating a safety management system for a construction site according to one embodiment of the present invention. Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals. Throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. As described above, in one aspect of the present invention, a safety management method is proposed that can recognize a worker even if there is a structure within the radius of equipment such as an excavator. FIGS. 2 to 4 are drawings for explaining a safety management method for a construction site according to an embodiment of the present invention. A safety management method according to one embodiment of the present invention includes first generating a 3D global coordinate map of a construction site (S210) and mapping a first target of a first area (R_1a, R_1b) recognizable based on a camera of an excavator (110) to the 3D global coordinate map (S220). However, there is a problem in that a worker (120b) who cannot be perceived by structures, vehicles (130), etc. within the first area (R_1a) perceivable based on the camera of the excavator (110) may exist, as described above in relation to FIG. 1, and accordingly, the first area (R_1b) perceivable based on the camera of the excavator (110) may be reduced compared to the case where there are no variables such as obstacles (130). To solve these problems, a safety management method according to one embodiment of the present invention additionally includes mapping a second target of a second area (R_2) recognizable based on a camera (210) of the construction site, as shown in FIG. 3, to the 3D global coordinate map, wherein the second area (R_2) includes an area not included in the first area (R_1