Construction Machinery Blind Spot Camera System
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Solution Overview
Problem
Construction machinery operators face inefficiencies and safety risks due to blind spots while operating, as existing around view monitoring (AVM) systems do not accurately display obstacle positions, especially when booms are raised or the machine turns, leading to potential accidents from unseen obstacles like wires or poles.
Innovation Solution
An enhanced operational stability device for construction machinery that includes a right-front-upper camera to capture images of blind spots, integrating them with the AVM system, and a control unit to automatically adjust the display on the monitor, along with a 3D scanner to assess obstacles in irregular terrain, enabling precise distance calculation and automatic control to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a camera is installed only at the front side of the driver's cabin, then the device complexity is reduced, but the measurement precision of obstacle position information deteriorates
Solution Approach 1:
The monitoring system is segmented into multiple camera units positioned at different locations (front, left, right, rear of the turning body) to capture different spatial zones. This segmentation allows comprehensive coverage of blind spots while maintaining manageable system complexity through modular camera installations.
Solution Approach 2:
The patent adds spatial dimensionality to camera positioning by installing cameras not only at the front but also at the left, right, and rear sides of the turning body. This multi-dimensional arrangement enables three-dimensional coverage of the operational environment, accurately capturing obstacle positions that would be invisible from a single front-facing viewpoint.
2Device complexity
If only an image according to a movement route is simply displayed, then the device complexity is reduced, but the ease of operation deteriorates
Solution Approach 1:
The patent merges multiple camera images from different positions (front, left, right, rear) into a single synthesized around-view image displayed on one monitor. This merging approach provides comprehensive spatial awareness without requiring the operator to switch between multiple separate displays, thereby improving ease of operation while maintaining reasonable device complexity.
Solution Approach 2:
The system creates a virtual copy of the physical environment by synthesizing images from multiple cameras into a comprehensive around-view representation. This virtual copy allows the operator to perceive the complete operational space without physically moving or checking multiple separate monitors, enhancing operational ease.
3Device complexity
If only an image according to a movement route is displayed, then the device complexity is reduced, but the reliability of obstacle recognition deteriorates
Solution Approach 1:
The monitoring system segments the operational environment into multiple viewable zones by positioning cameras at front, left, right, and rear locations. This segmentation ensures that critical blind spots (especially the right-front-upper area) are separately captured, improving obstacle recognition reliability without excessive complexity increase.
Solution Approach 2:
The patent introduces additional spatial dimensions for camera placement, particularly adding the right-front-upper position to capture previously invisible areas. This multi-dimensional camera arrangement ensures comprehensive obstacle detection from all critical angles, significantly improving recognition reliability while maintaining manageable system complexity.
Data Source
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AI summary
According to the present invention, an operational stability enhancing device for construction machinery is provided. The operational stability enhancing device for construction machinery includes: a plurality of cameras configured to capture surrounding images of construction machinery; a plurality of sensors configured to detect an obstacle located in the surrounding area of the construction machinery; a monitor configured to display the surrounding images of the construction machinery captured by the plurality of cameras; an electronic hydraulic pressure control valve configured to control an output flow rate of a corresponding hydraulic system driving unit so as to correspond to a manipulation signal of a user manipulation unit of the construction machinery; and a control unit configured to, in a case where a detected object is detected in a surrounding area of a moving path by the sensor, and the detected object is an avoidance processing target, display an image of the captured detected object on a monitor through screen conversion or change the image of the captured detected object so as to be easily recognized by an operator when the construction machines approaches the detected object.