SIM Presence Detection Without Module Activation

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Solution Overview

Problem

Conventional electrical equipment accessing a mobile telephone network in alternative mode experiences high power consumption due to the need to regularly activate the communication module to detect the presence of a SIM card, which is inefficient and wasteful.

Innovation Solution

The electrical equipment is designed with a central processing component directly connected to the SIM card presence detector, allowing it to determine the SIM card's presence without activating the communication module, thereby reducing power consumption and eliminating the need for continuous module activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the communication module is regularly activated to detect SIM card presence, then the SIM card presence can be verified, but the power consumption increases significantly

Engineering Contradiction:

ImproveSIM card presence detectionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the detection function from the communication module by introducing a separate SIM card presence detector directly connected to the central processing component. This allows presence detection to occur independently without activating the entire communication module, thereby reducing power consumption while maintaining reliable detection capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary presence detector component that mediates between the SIM card and the central processing component. This intermediary handles the detection task specifically, preventing the need for the communication module to activate for routine presence checks, thus resolving the contradiction between detection reliability and energy consumption.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the communication module is activated frequently, then the SIM card presence detection is ensured, but the operational efficiency decreases

Engineering Contradiction:

ImproveSIM card presence verificationVSAvoidoperational efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

By segmenting the detection function into a separate presence detector, the system avoids the inefficiency of frequently activating the entire communication module. The dedicated detector handles presence verification continuously or as needed without impacting the overall operational efficiency of the communication system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The presence detector operates autonomously to monitor SIM card presence, serving the detection need without requiring intervention from the communication module. This self-service mechanism ensures continuous verification capability while maintaining high operational efficiency by eliminating unnecessary module activations.

Inventive Principle:

Principle #25Self-service

3Use of energy by moving object

If the communication module remains deactivated to save power, then energy consumption is reduced, but the ability to detect SIM card presence is lost

Engineering Contradiction:

Improvepower consumptionVSAvoidSIM card presence detection

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent segments the detection functionality from the power-intensive communication module, creating an independent presence detector that operates with minimal power consumption. This segmentation enables the system to maintain detection capability while keeping the communication module deactivated, thus resolving the contradiction between energy savings and detection reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The presence detector acts as an intermediary that maintains the ability to detect SIM card presence without requiring the communication module to be active. This intermediary component bridges the gap between power-saving mode and detection capability, allowing the system to remain energy-efficient while preserving detection functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP3672359B1Electrical equipment that accesses, in an alternating operating mode, a mobile telephone network, method, computer program product and storage means

Publication Date: 2023.07.19 SAGEMCOM BROADBAND SAS

Figure 1
Figure 2~3

AI summary

Electrical equipment arranged to operate in an alternative mode of operation, wherein the electrical equipment accesses a mobile telephone network (2), the electrical equipment comprising a central processing component (3) arranged to manage the operation of the electrical equipment, a SIM card (16) holder (15), a SIM card presence detector (17), and a communication module (6) dedicated to communications with the mobile telephone network and connected to the holder (15), the electrical equipment being characterized in that the central processing component (3) includes a detection input (22) connected to the presence detector (17), such that the central processing component (3) is arranged to determine whether the SIM card (16) is positioned in the holder (15) without activating the communication module (6).