Blockchain Worker Evaluation System for Construction Safety
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Solution Overview
Problem
Existing talent assessment technologies in construction and similar settings are insufficient in encouraging workers to change behaviors for improved operational efficiency and safety, as they lack effective mechanisms for evaluating and rewarding specific work-related behaviors.
Innovation Solution
An information management system utilizing a blockchain to record and reward worker evaluations, where a supervisor assesses worker performance using a map-based system, assigning tokens based on evaluation criteria and recording these assessments on a blockchain for transparent and secure tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional talent assessment methods are used to evaluate worker performance, then operational efficiency and safety may improve through better talent management, but workers are not effectively encouraged to change behaviors for the purpose of talent assessment
Solution Approach 1:
The system implements real-time feedback mechanisms where workers immediately receive evaluation results and token rewards after completing tasks. The map interface provides continuous visibility of worker positions and assessment status, creating immediate feedback loops that motivate behavioral changes rather than delayed conventional assessment feedback
Solution Approach 2:
The system transforms the abstract concept of talent assessment into concrete, measurable parameters including worker location coordinates, task completion status, and token accumulation. These quantifiable parameters are displayed on the map interface, making performance visible and actionable for workers to optimize
2Reliability
If talent assessment is implemented to improve operational reliability and security, then plant construction time may be reduced, but the assessment system itself is insufficient to encourage workers to change behaviors
Solution Approach 1:
The map interface serves multiple functions simultaneously: it displays worker locations, tracks task completion, provides assessment feedback, and visualizes token rewards. This multi-functional design consolidates complex assessment operations into a single intuitive interface that improves reliability without adding operational complexity
Solution Approach 2:
Workers autonomously view their own assessment results and token accumulations on the map interface without requiring manual intervention from supervisors. The system automatically calculates evaluations and displays them in real-time, enabling workers to self-monitor and self-improve their performance
3Ease of operation
If a map-based evaluation system is used to display worker location and assess performance, then worker behavior can be incentivized through token rewards, but the system requires blockchain technology to record history information securely
Solution Approach 1:
The blockchain network acts as an intermediary layer that securely records token transactions and assessment history without interfering with the simple map-based user interface. Workers interact only with the intuitive map display, while the blockchain operates in the background to ensure data integrity and prevent fraud
Data Source
AI summary
An application server receives worker identification information on a worker and evaluation information on the worker for whom a work status is evaluated by using a map in which location information is displayed, calculates, as a token, an evaluation value corresponding to a work item indicated by the evaluation information, gives, as the token, the evaluation value to the worker indicated by the worker identification information, and transmits the worker identification information , the token history information that includes the worker identification information, a date and time at which the token is given, and the evaluation value to an information recording apparatus that records the history information on the token by using a blockchain.


