Vehicle Smart Key Anchor Control for Low-Power Access Detection
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Solution Overview
Problem
Smart key systems for vehicles lack effective methods to distinguish legitimate users from outsiders and conserve power, leading to high power consumption and potential battery discharge issues.
Innovation Solution
A lock control apparatus with multiple anchors that switch between sleep and waiting modes based on signal reception, using a processor to calculate the terminal's position and control door locking, improving security and reducing power consumption by efficiently managing anchor operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the smart key system continuously waits to receive signals from the portable terminal, then the system can detect driver approach and enable convenient access, but the power consumption increases and causes battery discharge
Solution Approach 1:
The patent applies dynamics by making the anchor's operational state changeable between active and sleep modes. The processor dynamically adjusts the anchor's工作状态 based on whether signals are being received, allowing the system to adapt its power consumption levels to actual operational needs while maintaining the ability to detect driver approach when required.
Solution Approach 2:
The patent implements periodic action by having anchors alternately switch between sleep mode and active signal reception mode. Instead of continuous operation, anchors periodically wake up to check for signals and return to sleep mode, creating a rhythmic on-off pattern that reduces overall power consumption while still maintaining detection capability.
2Reliability
If multiple anchors continuously operate to receive signals, then the system can accurately track terminal position and improve security, but the power consumption and system complexity increase
Solution Approach 1:
The patent applies segmentation by dividing the anchor system into multiple independent units that can operate autonomously. Each anchor can independently switch between sleep and active modes based on its own signal reception status, managed by a centralized processor. This segmentation allows the system to maintain security through multiple anchors while reducing overall complexity by allowing independent operation of each unit.
Solution Approach 2:
The patent implements local quality by allowing different anchors to be in different operational states simultaneously. Some anchors can be in sleep mode while others remain active, depending on their local signal reception conditions. This enables the system to maintain high security where needed while reducing power consumption and complexity in areas where signals are not present.
3Speed
If the anchor remains in waiting mode to quickly respond to terminal signals, then the response time is reduced, but the power consumption increases
Solution Approach 1:
The patent applies preliminary action by having anchors periodically wake up from sleep mode to check for incoming signals before returning to sleep. This proactive periodic checking allows the system to maintain relatively quick response times while spending most time in low-power sleep mode, balancing speed and power consumption requirements.
Data Source
AI summary
A lock control apparatus for a vehicle includes anchors to receive a signal transmitted from a terminal; a communication module to communicate using controller area network (CAN) communication; a detector installed on a door to input a detection signal; and a processor to receive the signal transmitted from the terminal from at least one of the anchors through the communication module, calculate a position of the terminal based on the signal transmitted from the terminal, determine whether to unlock the door in response to the position of the terminal and the detection signal, and control an engine to start. The processor controls the anchors to enter a sleep mode in response to waiting times of the anchors and resets the anchors to release the sleep mode and controls the anchors to enter a waiting mode in response to the number of anchors transmitting the signal from the terminal.