Portable Time and Expense Tracking System for Utility Crews
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Solution Overview
Problem
Existing systems for tracking time and expense for utility distribution systems, especially after disruptive events, rely on paper and pencil methods which are inefficient and prone to errors, and lack accurate authentication and documentation processes.
Innovation Solution
A system utilizing portable electronic devices with business rules and server-based verification, incorporating biometric data, GPS, and near-field communication for accurate time and expense tracking, including crew authentication and automated fuel management, to ensure timely and accurate reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paper and pencil systems are used for tracking time and expense after disruptive events, then the system can operate without reliable power or cellular communication, but the accuracy and efficiency of tracking is reduced and prone to errors
Solution Approach 1:
The system performs preliminary actions by pre-populating rosters on portable electronic devices ahead of time from a central server, so that crew member names and identifiers are already loaded before field operations begin. This eliminates the need for manual transcription during disruptions and prevents duplicate entries, thereby maintaining tracking accuracy even when operating offline with paper-like portability.
Solution Approach 2:
The patent replaces the mechanical paper-and-pencil system with electronic devices that can function offline. The portable electronic devices store and process time and expense data locally, substituting manual writing and calculation with electronic storage and automated computation, thereby improving both accuracy and efficiency while maintaining operational reliability during disruptions.
2Productivity
If manual paper-based tracking is used, then device complexity is minimized, but productivity and time efficiency are significantly reduced
Solution Approach 1:
The portable electronic devices serve multiple functions: they authenticate crew members using biometric data, track time entries, record expense entries, calculate mileage, predict fuel needs, and communicate with the central server. By consolidating these functions into a single device, the system achieves high productivity without proportionally increasing complexity, as the same hardware platform handles diverse tasks.
Solution Approach 2:
The system performs self-service through automated business rules that are applied to time and expense entries without manual intervention. The portable device automatically calculates mileage based on GPS data, cross-correlates fuel consumption with expense entries, and routes vehicles to refueling locations. This automation eliminates manual calculation and review steps, dramatically improving productivity while the rule-based approach keeps the system relatively simple.
3Measurement precision
If biometric authentication and pre-populated rosters are implemented, then transcription errors and duplicate entries are reduced, but the ease of operation increases due to additional authentication steps
Solution Approach 1:
The system performs preliminary action by pre-populating rosters with accurate crew member information from the central server before field operations begin. This eliminates the need for manual data entry and transcription during time and expense tracking, thereby improving data entry accuracy. The pre-loaded data is automatically matched with biometric authentication, streamlining the process rather than adding steps.
Solution Approach 2:
The biometric authentication system serves itself by automatically verifying crew member identities through fingerprint, facial recognition, or other biometric data. The system self-completes the identification process without requiring manual data entry or comparison, thereby improving accuracy while actually simplifying operation compared to manual roster checking. The automated matching eliminates the cognitive load of manually verifying names against rosters.
4Measurement precision
If GPS tracking and automated fuel management are implemented, then mileage calculation and fuel prediction accuracy is improved, but device complexity and automation requirements increase
Solution Approach 1:
The GPS receiver in the portable electronic device serves multiple functions: it tracks the vehicle's location for mileage calculation, determines authorized locations for time entries, calculates estimated time of arrival at work sites, and identifies refueling locations. By using a single GPS subsystem for all these purposes, the system achieves high measurement precision for mileage calculation without proportionally increasing complexity, as the same hardware and location data serve multiple needs.
Solution Approach 2:
The system implements feedback by continuously monitoring GPS location data and comparing it with authorized locations and fuel consumption patterns. The business rules use this feedback to automatically determine when refueling is necessary, cross-correlate mileage with fuel expenses, and route vehicles to appropriate refueling locations. This closed-loop feedback mechanism improves accuracy while keeping the automation manageable through rule-based decision logic.
Data Source
AI summary
A computer-implemented method and system that operates on a server includes a time and expense management interface for obtaining crew specific information for crews maintaining a utility distribution system. The server is coupled to a wireless communication infrastructure for receiving crew specific information. A portable electronic device receives a selection of a crew with members. The portable electronic device receives the identifier of the at least one or more members of the crew. Once verified, the portable device receives time entries and expense entries, for the at least one or more members of the crew. Business rules are applied to the time entries and expense entries. Once the business rules are satisfied, the time entries and expense entries are stored on the portable electronic device. When the portable electronic device is in proximity to the wireless communication infrastructure, the crew specific information is transmitted to server.