Biological Sample Meter Reset Key Layout and Controller Logic

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Solution Overview

Problem

Conventional biological sample measuring devices are difficult to use, particularly in performing a reset operation, which can be accidentally triggered due to their design.

Innovation Solution

The device incorporates a main body case with a data reader, sensor mounting portion, display section, finger groove, and interface unit, where the reset operation is performed by simultaneously pressing multiple keys or buttons around the enter key, preventing accidental resets while allowing for simple reset manipulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a small reset hole is provided on the rear of the main body case, then the reset operation can be performed, but it becomes difficult to operate and prone to accidental triggering

Engineering Contradiction:

Improveprevention of accidental resetVSAvoiddifficulty of reset operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Instead of using a small hole that requires insertion (difficult operation), the patent inverts the approach by using a large accessible key layout where the reset function is triggered by a specific key combination (pressing keys in a particular sequence or combination). This makes the reset operation easier to access while the specific combination requirement prevents accidental triggering.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces an intermediary mechanism (the controller interpreting key combinations) between the user input and the reset function. Rather than directly accessing a reset hole, the user presses keys that are interpreted by the controller to determine whether a reset should be executed, adding a layer of intelligence that prevents accidental resets while maintaining ease of operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the enter key protrudes the farthest on the front of the main body case for easy access, then it is easy to press, but accidental pressing may occur

Engineering Contradiction:

Improveease of key pressingVSAvoidaccidental key pressing

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by making the enter key protrude the farthest for easy identification and pressing, while the reset function is assigned to a specific combination of keys (including but not limited to the enter key). This means the enter key itself is easy to access, but the reset function requires a specific local configuration of multiple keys, reducing accidental activation while maintaining ease of use for the enter key's primary function.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent changes the parameter of reset activation from a single physical location (reset hole) to a logical condition (key combination). The enter key can protrude for ease of operation, but the reset function is triggered only when specific keys are pressed in a specific sequence or combination, changing the activation parameter from spatial to logical, thereby preventing accidental resets.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If multiple keys or buttons are disposed around the enter key for reset operation, then accidental reset is prevented, but the interface complexity increases

Engineering Contradiction:

Improveprevention of accidental resetVSAvoidinterface unit complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by using the same key layout for multiple functions. The keys around the enter key serve both as navigation/input keys for normal operation and as a combination for the reset function. This multi-functionality approach prevents accidental reset (since the combination is specific) while avoiding the need for separate dedicated reset buttons, thus not increasing overall interface complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9188466B2Biological sample measuring device

Publication Date: 2015.11.17 PHC HLDG CORP

AI summary

This biological sample measuring device has a finger groove (6) provided in the short-side direction of a main body case (1) at a position that is closer to a sensor mounting portion (4) than a display section (5) on the rear side of the main body case (1). An interface unit (7) is provided on the front side portion of the main body case (1) corresponding to the finger groove (6). The interface unit (7) has an enter key (7b) and a plurality of cross keys (7ca), etc., disposed at a specific spacing around the outer periphery of the enter key (7b). The enter key (7b) is provided so that it protrudes farther than the cross keys (7ca), etc., on the front side of the main body case (1). A controller (13) performs a reset operation when a plurality of keys are pressed.