Magnetometer Accessory Alignment Detection for Dual Orientation Mounts
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Solution Overview
Problem
Current attachment detection systems for electronic devices are costly due to the use of multiple Hall devices and magnets, which increases the expense of consumables and complicates internal layouts.
Innovation Solution
A system that uses a magnetometer in the electronic device and existing attachment components in the accessory to detect proper positioning, reducing the need for additional magnets and Hall devices, thereby lowering costs and simplifying the design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual inspection methods are used to verify accessory installation, then labor costs and inspection time increase, but detection accuracy may be compromised due to human error
Solution Approach 1:
The patent replaces manual visual inspection with an automated optical detection system using cameras and image processing algorithms. The system automatically captures images of accessory installation positions and uses computer vision to detect presence/absence, eliminating human labor while maintaining high detection accuracy and reducing inspection time.
Solution Approach 2:
The patent introduces an intermediary detection system consisting of cameras, image processing units, and algorithms that mediate between the accessory installation state and the detection result. This intermediary system automatically verifies installation without requiring direct human inspection, resolving the contradiction between accuracy and time efficiency.
2Reliability
If complex detection systems are implemented to ensure accurate accessory detection, then device complexity increases, but simpler systems may miss detection opportunities
Solution Approach 1:
The patent divides the detection system into modular components: image capture modules (cameras), image processing modules, detection algorithm modules, and communication modules. Each module performs a specific function, making the overall system reliable while manageable in complexity. The segmentation allows for easier implementation and maintenance compared to a monolithic complex system.
Solution Approach 2:
The patent designs a universal detection system that can detect multiple types of accessories (sun visors, vanity mirrors, sunglasses holders) using the same basic hardware platform and detection algorithms. This multi-functionality approach ensures reliable detection across different accessory types without requiring separate complex systems for each accessory type.
3Measurement precision
If traditional inspection methods are used, then system complexity remains low, but detection precision and consistency deteriorate due to human factors
Solution Approach 1:
The patent substitutes human inspection with automated optical detection systems, achieving high detection precision through computer vision algorithms while accepting the necessary increase in system complexity. The automation eliminates human error and inconsistency, providing reliable and consistent detection results.
Solution Approach 2:
The patent implements feedback mechanisms where detection results are communicated back to the vehicle system (e.g., notifying the infotainment system or warning the driver). This feedback loop ensures that detection precision is maintained and that the system can take appropriate actions based on detection outcomes, justifying the added system complexity.
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 solution accurately determines the attachment state of accessories with reduced costs and complexity, allowing for efficient detection of proper positioning in both orientations.
Implementation Method 1
The magnetometer is further configured to be triggered by a combined magnetic field of the first attachment component and the second attachment component to output first magnetic field intensity information
Data Source
Figure 1(a)~1(b)
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
The present invention discloses a system for detecting proper positioning of an accessory, including an electronic device and a to-be-attached accessory. The electronic device includes a first attachment component, a magnetometer, and a processor. The to-be-attached accessory includes a second attachment component. The second attachment component is configured to be attached to the first attachment component, so that the to-be-attached accessory is fixed through attachment to the electronic device in a first orientation or a second orientation. The magnetometer is further configured to be triggered by a combined magnetic field of the first attachment component and the second attachment component to output the magnetic field intensity information when the to-be-attached accessory is fixed through attachment to the electronic device in the first orientation or the second orientation. The processor is configured to: output first indication information indicating that the to-be-attached accessory is fixed in position through attachment when the magnetic field intensity information meets a preset condition, and output second indication information indicating that the to-be-attached accessory is not fixed in position through attachment when the magnetic field intensity information does not meet the preset condition. Through the present invention, the consumable cost of the existing attachment detection solution can be effectively reduced.