Construction Site Proximity Monitoring for Worker-Machine Hazard Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing safety management systems for construction sites fail to provide accurate and centralized management of worker and machine proximity, leading to inefficient and unreliable alarm systems, particularly in dynamic construction environments, with issues such as false detections, lighting conditions affecting image recognition, and mechanical restrictions being cumbersome and time-consuming.
Innovation Solution
A construction site safety management apparatus that uses wireless communication with positioning and distance measuring devices, including GNSS receivers, IMUs, RFID tags, and detectors, to recognize and judge the proximity of workers and machines, transmitting alerts based on pre-set zones and roles, enabling centralized control and improved safety management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS positioning devices and transmitters are used to deliver discrete mobile positional signals, then position measurement accuracy is improved, but the system cannot perform centralized safety management analysis of worker behavioral characteristics and machine operating characteristics
Solution Approach 1:
The patent combines multiple positioning devices (GNSS receivers, IMUs, RFID detectors) with a centralized management server that collects and analyzes data from multiple sources. This merging enables both accurate position measurement and comprehensive safety management analysis by integrating device-level precision with system-level versatility.
Solution Approach 2:
The management server is designed to perform multiple functions: it processes positioning data from various devices, analyzes worker behavioral characteristics, analyzes machine operating characteristics, identifies hazards, and generates safety alerts. This multi-functional design resolves the contradiction by providing centralized safety management capability while maintaining measurement precision through multiple positioning technologies.
2Reliability
If image recognition is used for proximity detection, then contact incidents can be avoided, but lighting conditions affect recognition accuracy and mechanical restrictions are cumbersome
Solution Approach 1:
The patent replaces mechanical restriction systems with wireless positioning and electronic alert systems. GNSS receivers, IMUs, and RFID detectors provide automated proximity detection without mechanical constraints, while lighting conditions are compensated through sensor fusion and data processing algorithms in the management server.
Solution Approach 2:
The management server acts as an intermediary that processes data from multiple positioning sources and generates alerts. This intermediary layer compensates for limitations of individual detection methods (such as lighting conditions affecting image recognition) by integrating multiple data sources and applying analytical algorithms.
3Reliability
If alarm systems notify proximity states based on distances, then safety alerts are provided, but false detections occur and unnecessary alarms reduce productivity
Solution Approach 1:
The management server continuously receives positioning data, analyzes proximity states, and generates feedback alerts only when actual hazards are detected. The system uses behavioral characteristic analysis and operating characteristic analysis to distinguish between normal work movements and dangerous proximity, providing feedback that reduces false detections and unnecessary alarms while maintaining safety alert accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides more accurate and targeted alerts, reducing unnecessary alarms, improving hazard recognition, and enhancing safety by analyzing proximity data to optimize worker and machine placement, thereby increasing safety and productivity on construction sites.
Implementation Method 1
a GNSS receiver (world positioning geodetic system positioning device)
Implementation Method 2
IMUs (inertial measuring device, an angular sensor)
Implementation Method 3
a RFID detector (radio frequency identifier)
Data Source
AI summary
A construction site safety management apparatus which is wirelessly communicatively connected with a positioning device or a distance measuring device, the apparatus including a recognition unit for appropriately recognizing respectively mutual positions among the one or more construction machines and, the installation objects or the workers, based on positional information transmitted from the positioning devices and/or distance information transmitted from the distance measuring devices, and a judgement unit for judging mutual proximity among the one or more construction machine and, the installation objects or the workers, based on roles of the installation object and/or the workers preliminarily set for the said one or more of the construction machines, while searching said recognized mutual positions among the one or more construction machine and, the installation objects or the workers, thereby performing centralized control of safety of the construction site.