RFID Wiper Blade Sensor for Aging Detection
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Solution Overview
Problem
Current wiper blades are often replaced unnecessarily due to aging, leading to increased consumption and potential safety risks from impaired visibility during rain, as they are typically replaced without a thorough inspection of their condition.
Innovation Solution
Incorporating a non-contact readable identification unit, such as an RFID element, into the wiper blade to track usage and aging, allowing for precise determination of when replacement is necessary, including sensors to monitor environmental factors affecting wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wiper blades are replaced without thorough inspection, then replacement process is simplified, but unnecessary consumption increases and functional blades are discarded
Solution Approach 1:
The system performs preliminary inspection and assessment of wiper blade condition through sensors that detect wear, damage, and performance degradation before replacement is needed. This allows the system to determine optimal replacement timing based on actual blade state rather than predetermined schedules, preventing unnecessary replacements while ensuring safety.
2Loss of substance
If wiper blades are replaced only when visibility is severely impaired, then consumption is reduced, but driving safety is compromised during the delay period
Solution Approach 1:
The system continuously monitors wiper blade condition through multiple sensors that detect wear, damage, and performance degradation. This feedback is processed by a control unit that determines when replacement is necessary, balancing consumption reduction with safety requirements by replacing blades based on their actual functional state rather than arbitrary time intervals.
Solution Approach 2:
The system performs preliminary detection of blade deterioration through sensors that identify wear and damage before they severely impact visibility. This allows proactive replacement scheduling that maintains safety while optimizing consumption by replacing blades at the precise moment when performance degradation reaches critical thresholds.
3Loss of information
If identification unit is added to wiper blade, then tracking and monitoring capability is improved, but device complexity increases
Solution Approach 1:
The identification unit serves multiple functions: it stores blade identification data for tracking purposes, provides information about blade installation timing, and enables communication with the control unit for monitoring and replacement decisions. This multi-functionality justifies the added complexity by consolidating several information management tasks into a single integrated component.
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 timely and optimized replacement of wiper blades based on actual usage and aging conditions, reducing unnecessary consumption and enhancing driver safety by ensuring clear visibility during rain.
Implementation Method 1
an identification unit with a memory for storing data, wherein the identification unit is designed to transmit the data without contact
Data Source
Figure 1~2
Figure 3
AI summary
The blade (1) has a carrier element for holding a wiping lamella, and an identification unit (5) provided with a memory for storing data and used for transferring the data in a contact-less manner. The identification unit comprises an antenna that is designed as a loop antenna or a dipole antenna. The identification unit is designed as a radio-frequency identification (RFID) element. The identification unit comprises a sensor to detect information about an aging condition of the blade and stores the information in the memory, where the sensor is a UV photosensor or a temperature sensor. Independent claims are also included for the following: (1) a windscreen wiper system comprising a communication unit (2) a method for operating a wiper blade of a windscreen wiper system.