Smart Key Unit Radio Wave Intensity Feedback
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Solution Overview
Problem
Smart key systems face challenges in determining an appropriate installation position for key units due to radio wave interference from other communication devices and noise sources, which can hinder locking and unlocking operations using mobile terminals.
Innovation Solution
A key unit that transmits a predetermined signal indicating whether the radio wave intensity in communication with a locking/unlocking device is equal to or greater than a set threshold, allowing a mobile terminal to notify the user of suitable installation positions and simplify the positioning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a key unit is installed in a vehicle to enable locking and unlocking using a mobile terminal, then the convenience of users is improved, but radio wave interference from other communication devices and noise sources makes it difficult to determine an appropriate installation position
Solution Approach 1:
The key unit measures the radio wave intensity of polling signals received from the locking/unlocking device and provides feedback information to the user through a mobile terminal. This feedback mechanism allows users to identify suitable installation positions by observing the measured radio wave intensity, thereby resolving the contradiction between convenience and radio wave interference.
2Productivity
If the key unit transmits radio signals for communication with the locking/unlocking device, then locking and unlocking operations can be performed, but radio wave interference from other devices affects communication quality
Solution Approach 1:
The system replaces direct physical observation of communication quality with electronic measurement of radio wave intensity. The key unit electronically measures the intensity of polling signals and transmits this information to the mobile terminal, substituting the need for manual testing of communication quality with automated electronic detection and display.
3Reliability
If users manually search for appropriate installation positions for the key unit, then communication quality can be optimized, but the time required to find suitable locations increases
Solution Approach 1:
The key unit autonomously measures radio wave intensity and provides installation position recommendations without requiring users to manually test communication quality. The system self-evaluates its performance and guides users to suitable positions, eliminating the time-consuming manual search process while maintaining communication quality optimization.
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
Enables rapid identification of appropriate installation positions for key units, enhancing communication quality and reducing the time required to find suitable locations, thereby improving the convenience and reliability of locking and unlocking operations.
Implementation Method 1
a key unit (100) which performs locking and unlocking of a vehicle (10) by radio communication with a locking/unlocking device (300)
Implementation Method 2
a key unit (100) which performs locking and unlocking of a vehicle (10) by radio communication with a locking/unlocking device (300)
Data Source
AI summary
A key unit includes a control unit configured to control locking and unlocking of an object by performing radio communication with a locking/unlocking device. The key unit is configured to transmit a predetermined signal corresponding to whether a radio wave intensity in the radio communication with the locking/unlocking device is equal to or greater than a predetermined intensity to a mobile terminal. The predetermined signal is used to transmit a predetermined notification to a user when the predetermined signal is received by the mobile terminal.