Switch Operation Error Avoidance in Multifunctional Machines
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Solution Overview
Problem
Existing multifunctional machines face challenges in accurately distinguishing between user-initiated and NFC-initiated switch operations, leading to erroneous detections and potential interference with normal user operations.
Innovation Solution
A switch operation erroneous-detection avoidance device that includes an execution control unit which prohibits or permits processes associated with an operation switch based on whether a prescribed process is executed with a portable object when the switch transitions from a pressed to an unpressed state, using a prohibition flag to differentiate between user and NFC-initiated actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the multifunctional machine uses a capacitive detection switch, optical switch, or mechanical switch in close proximity to the NFC antenna, then the NFC function can be integrated into the operation panel unit, but the switch may be erroneously activated by the mobile terminal conductor during NFC operations
Solution Approach 1:
The patent introduces an execution control unit as an intermediary that mediates between the switch input unit and the process execution unit. This controller monitors switch operations and determines whether to permit or prohibit process execution based on the operational state, thereby preventing erroneous activations while maintaining normal switch functionality.
Solution Approach 2:
The execution control unit implements a feedback mechanism by continuously monitoring the operational state of the NFC reader/writer and using this information to control whether switch operations trigger processes. The system feeds back the NFC operational status to the switch control logic, enabling dynamic adjustment of switch responsiveness.
2Reliability
If the system prohibits switch operation processes during NFC execution to avoid erroneous detection, then false activations are prevented, but normal user operations may be delayed or interfered with
Solution Approach 1:
The system dynamically adjusts its behavior based on real-time operational conditions. The execution control unit changes the responsiveness of the switch operation system according to whether NFC is currently executing, transitioning between a prohibited state during NFC operations and a permitted state during normal operations. This dynamic adjustment prevents erroneous activations while maintaining user operation responsiveness when appropriate.
3Reliability
If the system detects magnetic field beforehand to invalidate switch operations, then erroneous operations are reduced, but the input determination of the switch is delayed and desired operations may be canceled
Solution Approach 1:
The execution control unit performs preliminary assessment of the operational context before determining whether to permit switch operations. By evaluating the NFC operational state in advance and setting appropriate control flags, the system prepares the decision-making framework beforehand, enabling rapid response to switch inputs without delay while still preventing erroneous operations.
Data Source
AI summary
A switch operation erroneous-detection avoidance device includes: an execution control unit that if a prescribed device executes a prescribed process with a portable object when an operation switch transits from a pressed state to an unpressed state, prohibits execution of a process associated with the operation switch and if the prescribed device does not execute the prescribed process with the portable object when the operation switch transits from the pressed state to the unpressed state, permits the execution of the process associated with the operation switch.