Vehicle Access Control Using Mobile Motion Pattern Verification
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Solution Overview
Problem
Existing technologies fail to accurately detect the position of a mobile device using a smart key, as the vehicle control unit, and electromagnetic collisions and electromagnetic waves affect the wireless signal transmitted and received between the mobile device and the vehicle, leading to unintended control of the vehicle.
Innovation Solution
A system and a method for controlling a vehicle, comprising a vehicle control unit and a mobile device, and a mobile device, which includes a sensor capable of detecting a user's input to control at least one of a door and a start of a vehicle engine, and a sensor capable of detecting a user's input, and a sensor capable of detecting a user's input to control at least one of a door and a start of an engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless signal transmission is used for smart key control, then convenience of vehicle access and engine start is improved, but position detection accuracy deteriorates due to electromagnetic noise, reflection and collision
Solution Approach 1:
The patent introduces an intermediary mechanism (sensor-based motion pattern detection) between the wireless signal transmission and the control execution. Instead of relying solely on wireless signal position detection, the system uses sensors to detect motion patterns as an intermediary indicator of user intent, which is then combined with wireless signal data to make the final control decision. This intermediary approach filters out electromagnetic interference effects and provides more reliable position and intent detection.
2Measurement precision
If UWB technology is added to mobile device for improved position detection, then position detection accuracy is improved, but device complexity increases due to extra hardware component
Solution Approach 1:
The patent makes the mobile device's existing sensors serve multiple functions. The sensors originally designed for other purposes (motion detection, positioning) are utilized for smart key control verification. By making these existing components multi-functional, the system achieves improved position detection accuracy without adding the UWB hardware, thereby avoiding increased device complexity.
Solution Approach 2:
The mobile device uses its own existing sensors to provide the position and motion pattern information needed for smart key control. Instead of relying on additional dedicated hardware components like UWB, the system leverages the mobile device's self-contained sensor capabilities to fulfill the positioning and authentication requirements, eliminating the need for extra hardware.
3Measurement precision
If sensor-based motion pattern detection is used, then position detection accuracy is improved and hardware modification is avoided, but system complexity increases due to additional detection parameters
Solution Approach 1:
The patent merges multiple detection parameters (wireless signal position data and sensor-based motion pattern data) into a unified control decision-making process. By combining these different types of information and processing them together through an integrated algorithm, the system achieves high position detection accuracy while managing complexity through consolidation rather than separate independent systems.
Data Source
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AI summary
The present invention relates to a system and a method for controlling a vehicle. In accordance with an aspect of the present invention, there is a system for controlling a vehicle comprising: the vehicle comprising a vehicle control unit operable to detect a user's input to control at least one of a door and a start of an engine, and control the at least one of the door and the start of the engine; and a mobile device comprising a sensor capable of detecting a position and a motion pattern of the mobile device, characterised in that: when the vehicle control unit detects the user's input, the vehicle control unit is operable to collect a latest position of the mobile device and the motion pattern of the mobile device from the sensor, determine a current position of the mobile device with respect to the vehicle based on the collected information, and decide whether to control the at least one of the door and the start of the engine.