RFID Material Tracking System for Construction Site Logistics
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Solution Overview
Problem
In large building projects, the failure to track construction materials leads to cost-overruns and delays due to difficulty in locating materials on site, resulting in wasted labor time and additional costs for re-ordering and delivery.
Innovation Solution
A materials management system comprising a database for tracking material information, a software module for color-coding items in a 3D model, and a mobile data processing device with a scanner and GPS receiver to monitor and update the status of materials in real-time, using identification tags and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual tracking of construction materials is used, then the system complexity is low, but the productivity and accuracy of material location and status tracking deteriorate
Solution Approach 1:
The patent replaces manual mechanical tracking methods with an automated electronic system using RFID tags, mobile data processing devices, and database software. This substitution eliminates the need for physical manual tracking while significantly improving productivity and accuracy in material location and status monitoring.
Solution Approach 2:
The patent creates a digital copy of the physical material tracking system through RFID tags and database records. This copying allows for automated tracking and monitoring without physically following each material, thereby improving efficiency while reducing the operational complexity burden.
2Loss of time
If real-time material tracking is implemented, then the loss of time for locating materials is reduced, but the device complexity and initial costs increase
Solution Approach 1:
The RFID tags automatically transmit material location and status information without requiring manual intervention or active tracking by workers. The system serves itself by continuously updating the database with material positions, thereby reducing time loss while the automated nature manages the complexity.
Solution Approach 2:
The system continuously receives feedback from RFID tags about material locations and updates the database in real-time. This feedback mechanism automatically provides current material status information, reducing the time needed to locate materials while the systematic feedback loop manages complexity through automation.
3Reliability
If comprehensive material tracking is implemented, then the reliability of material location information is improved, but the device complexity and operational burden increase
Solution Approach 1:
The patent replaces unreliable manual tracking methods with automated electronic RFID tracking, significantly improving the reliability and accuracy of material location information. The electronic system provides consistent, verifiable data without the human error inherent in manual tracking.
Solution Approach 2:
The RFID tags serve as intermediaries between the physical materials and the tracking system. These tags automatically provide accurate location and status information, improving reliability while the intermediary nature of the tags simplifies the overall system operation compared to direct manual tracking.
4Loss of information
If manual material inventory management is used, then the ease of operation is high, but the loss of information regarding material status and location increases
Solution Approach 1:
The RFID tracking system continuously monitors and updates material status and location information without interruption. This continuous action ensures that no information is lost, as the system constantly maintains accurate records. The automation handles the complexity while providing uninterrupted information flow.
Solution Approach 2:
The system creates and maintains a continuous digital copy of material status and location information in the database. This copying ensures that comprehensive information is preserved and accessible, preventing information loss while the automated database management handles the operational complexity.
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
The system enables efficient tracking and management of materials from procurement to installation, reducing delays and costs by providing real-time location and status updates, and facilitating maintenance tracking, thus enhancing productivity and reducing errors.
Implementation Method 1
a GPS receiver operatively connected to the mobile data processing device for obtaining the GPS coordinates of the item
Implementation Method 2
a data scanner for scanning machine-readable information, including identification information, provided in an identification tag attached to an item of material
Data Source
AI summary
A materials management system (10) comprises a materials database (12) for storing information relating to the nature identity and location of each item of material on a site. A mobile data processing device (14) is provided, having a data scanner (16) for scanning machine-readable identification information provided in an identification tag attached to an item of material. A GPS receiver (18) is operatively connected to the mobile data processing device (12) for obtaining the GPS coordinates of the item of material. The mobile data processing device (14) transmits the GPS coordinates and the identification information to the materials database (12) so that the location of each item of material on site can be tracked. The materials database (12) can be accessed online from anywhere in the world via satellite link (20) (or internet) using any suitable desktop personal computer (22). The materials management system has particular application to a construction site, and sites where intrinsically safe systems are required.