Programmable Weighing Scale Concurrent Process Tracking
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Solution Overview
Problem
Current manual systems for managing inventory in retail environments, such as labeling and tracking of perishable items, are time-consuming, prone to errors, and inefficient, leading to potential waste due to missed expiration dates or incorrect processing steps.
Innovation Solution
A weighing apparatus with multiple user interfaces, including a process control interface that allows for automated tracking and labeling of inventory items, featuring a main interface, process control interface, and print interface, which guides users through steps and alerts when items need to be moved or expire, utilizing a controller to manage and store data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual labeling and tracking of inventory items is used, then each item can be individually tracked, but the process is time-consuming and prone to errors
Solution Approach 1:
The patent replaces manual mechanical labeling with an automated electronic system. The weighing apparatus automatically generates and displays labels with expiration dates and process step information through electronic interfaces, eliminating the need for manual writing or printing on physical cards. This substitution of mechanical manual operations with electronic automation resolves the contradiction by maintaining accurate tracking while dramatically reducing the time required.
Solution Approach 2:
The system enables self-service automated tracking where the weighing apparatus itself performs the labeling and tracking functions without requiring employee intervention. The device automatically calculates expiration dates, tracks process steps, and manages inventory information, allowing the system to serve itself rather than requiring continuous manual oversight. This resolves the contradiction by maintaining reliability through automated self-tracking while eliminating time-consuming manual operations.
2Reliability
If manual monitoring of expiration dates is performed, then items can be tracked, but errors occur and items may be sold or expire before proper processing
Solution Approach 1:
The weighing apparatus incorporates feedback mechanisms that continuously monitor and display expiration dates and process step completion status. The system provides real-time feedback to employees through visual indicators on the display interface, alerting them when items are approaching expiration or when process steps are incomplete. This feedback loop ensures accurate expiration tracking and prevents errors by keeping expiration status information readily available, resolving the contradiction between reliable tracking and information loss.
Solution Approach 2:
The electronic display interface acts as an intermediary between the inventory items and the employees. Rather than relying on manual monitoring, the system uses the display interface to mediate the transmission of expiration date and process status information from the weighing apparatus to the employees. This intermediary ensures accurate information transfer and prevents loss of expiration status data, resolving the contradiction by maintaining reliable tracking through automated information dissemination.
3Device complexity
If individual ingredients are not tracked for each process step, then the system is simpler, but ingredients may not be properly processed or used
Solution Approach 1:
The system segments the inventory tracking into distinct process steps, with each step having specific requirements and expiration dates. The weighing apparatus divides the overall inventory management into manageable segments corresponding to different process stages (e.g., preparation, cooking, serving). This segmentation allows the system to track individual ingredients through specific process steps without requiring overly complex centralized tracking, resolving the contradiction by maintaining process step compliance through structured segmentation while managing complexity at acceptable levels.
Solution Approach 2:
The system applies local quality by providing specific tracking and monitoring capabilities tailored to each process step and ingredient type. Rather than using a uniform complex system for all items, the weighing apparatus adapts the tracking detail and interface information to the specific local requirements of each ingredient and process step. This local customization ensures proper processing compliance for each item while avoiding unnecessary complexity in the overall system design, resolving the contradiction between tracking reliability and system complexity.
Data Source
AI summary
Food service workers prepare a number of items throughout the day at a food counter, so the workers may need to track process steps for entirely different processes that are running concurrently. For example, the worker may need to remove a pizza from an oven one moment, and remove breadstick dough from a refrigerator one minute later. A programmable weighing scale guides users through process steps of a process, and tracks completion time of process steps for multiple processes, and alerts a food service worker when a next step in one of multiple, concurrently running processes needs to be completed. Because data stored for each process can be selected throughout, for example, an entire working day, the controller of the weighing scale can track timing requirements for each step of each process. The weighing apparatus is independent of other apparatuses used in completing the process steps (e.g., refrigerators, ovens, mixers, etc.), so it can track process steps that involve various apparatuses that may be needed to complete the processes. An alert for one process step associated with one process can be presented within the duration of an entirely different process step for an entirely different process.