Magnetic Sensor Circuitry for Wireless Device Control

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Solution Overview

Problem

Existing methods for delivering control information to electrical devices, such as network elements, face challenges like moisture damage and signal interference, particularly when using electrical connectors or radio interfaces, which complicate the control process and require complex devices.

Innovation Solution

Incorporating magnetic sensor circuitry to detect deviations in the Earth's magnetic field, allowing control of electrical devices using a permanent magnet, thus eliminating the need for electrical connectors or radio interfaces and simplifying the control mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrical connectors are used to deliver control information to the electrical device, then control information can be transferred through the casing, but the electrical connector is vulnerable to moisture damage and requires sealed lead-ins

Engineering Contradiction:

Improvecontrol information transfer reliabilityVSAvoidmoisture damage to electrical connector

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the electrical connector (electrical field-based system) with a magnetic sensor circuitry that detects magnetic field deviations. This substitution eliminates the need for physical electrical connections through the casing, thereby protecting against moisture damage while maintaining control information transfer capability. The magnetic field can penetrate the casing without requiring electrical connectors.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If a radio receiver is used inside the casing to receive control information, then control information can be delivered without electrical connectors, but the device complexity increases due to requiring both radio transmitter and receiver

Engineering Contradiction:

Improvecontrol information delivery without electrical connectorVSAvoidcomplexity of radio transmitter and receiver system

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the radio transmitter from the system, keeping only the magnetic sensor circuitry inside the casing. The external control device simply needs to generate magnetic field deviations (e.g., by moving a magnet), while the internal magnetic sensor detects these deviations and converts them to control signals. This extraction simplifies the overall system compared to a two-way radio communication system.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If a radio receiver is used inside the casing, then control information can be received without electrical connectors, but the received radio signal may disturb the operation of functional elements

Engineering Contradiction:

Improvecontrol information delivery without electrical connectorVSAvoidradio signal interference with functional elements

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the radio receiver (electromagnetic field-based system) with magnetic sensor circuitry that operates on magnetic field deviations. This substitution eliminates the risk of radio frequency interference with internal functional elements while maintaining the capability to receive control information wirelessly through the casing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables reliable and interference-free control of electrical devices by using a permanent magnet to direct magnetic fields, allowing for mode switching and configuration without the complexities associated with traditional control methods, while protecting internal components from ambient conditions.

Implementation Method 1

a magnetic sensor circuitry for detecting magnetic field and for generating a detection signal in response to the detected magnetic field

Methodology Applied

Scientific EffectMagnetic field detection: Magnetic Field

Data Source

PatentUS10274304B2Method for controlling an electrical device and an electrical device

Publication Date: 2019.04.30 CORIANT

AI summary

An electrical device includes a magnetic sensor circuitry (101) for detecting magnetic field and for generating a detection signal in response to the detected magnetic field, and a control circuitry (102) for controlling operation of the electrical device in accordance with the detection signal. The magnetic sensor circuitry is configured to detect a direction related to a deviation of the magnetic field from the magnetic field of the earth, and the control circuitry is configured to control the operation of the electrical device in accordance with the detected direction. The electrical device can be controlled by using e.g. a permanent magnet (105) for directing, to the magnetic sensor circuitry, magnetic field deviating from the magnetic field of the earth and having a desired orientation. Thus, the electrical device can be controlled without an electrical connector or a radio interface.