Weight Checker Parameter Validation Logic

Solution Overview

Problem

Users of weight checking devices may inadvertently set parameters outside predetermined allowable ranges, affecting weighing accuracy and yield, leading to potential operational issues and legal compliance concerns.

Innovation Solution

A weight checking device with a control unit that determines whether changed parameters are within allowable ranges, outputs determination information, and either allows or restricts changes based on these determinations, ensuring appropriate settings and preventing parameter deviations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user is allowed to freely change parameters relating to the operation of the weight checking device, then the ease of operation is improved, but the reliability deteriorates due to potential settings outside allowable ranges affecting weighing accuracy and yield

Engineering Contradiction:

Improveparameter changeabilityVSAvoidweighing accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The control unit provides feedback to the user when a parameter change would result in a setting outside the allowable range. The system determines whether the parameter after change is within the predetermined allowable range and outputs determination information to guide the user's operation, thus preventing unreliable settings while maintaining operational flexibility.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary determination before applying parameter changes. The control unit evaluates whether the intended parameter change would result in an allowable setting before the change is implemented, preventing operations that would compromise weighing accuracy or yield.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the user is allowed to freely change parameters relating to the operation of the weight checking device, then the adaptability is improved, but the reliability deteriorates due to potential settings outside allowable ranges affecting check results

Engineering Contradiction:

Improveparameter adjustabilityVSAvoidcheck accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The control unit provides feedback to the user when a parameter change would result in a setting outside the allowable range. The system determines whether the parameter after change is within the predetermined allowable range and outputs determination information to guide the user's operation, thus preventing unreliable settings while maintaining operational flexibility.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary determination before applying parameter changes. The control unit evaluates whether the intended parameter change would result in an allowable setting before the change is implemented, preventing operations that would compromise weighing accuracy or yield.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the control unit restricts parameter changes outside allowable ranges, then the reliability is improved by ensuring accurate weighing, but the ease of operation deteriorates due to limited parameter modification

Engineering Contradiction:

Improveweighing accuracyVSAvoidparameter changeability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The control unit provides feedback to the user when a parameter change would result in a setting outside the allowable range. The system determines whether the parameter after change is within the predetermined allowable range and outputs determination information to guide the user's operation, thus preventing unreliable settings while maintaining operational flexibility.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary determination before applying parameter changes. The control unit evaluates whether the intended parameter change would result in an allowable setting before the change is implemented, preventing operations that would compromise weighing accuracy or yield.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3882584A1Weight checking device

Publication Date: 2021.09.22 ISHIDA CO LTD

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AI summary

It is an object of this invention to provide a weight checking device that ensures that the user can appropriately carry out settings relating to the operation of the device. A weight checker 30 (weight checking device) performs checks relating to weights of products P (articles-to-be-checked). The weight checker includes a load cell 33 (weighing unit), a touch panel 37 (receiving unit), and a control unit 39. The load cell weighs the weights of the products. The touch panel receives requests to change parameters relating to the operation of the weight checker. The control unit determines, based on at least one of conditions permitted for the weight checker and conditions relating to the checks, whether or not the parameters after the changes pertaining to the change requests are in predetermined allowable ranges and, in accordance with the determination results, outputs predetermined determination information or decides whether or not to change the parameters based on the change requests.