Work Vehicle Liquid Replenishment Notification via Distinct Acoustic Signals
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Solution Overview
Problem
Existing work vehicles lack an effective method to notify users about the replenishment of fuels and urea aqueous liquids, as current systems rely on buzzer sounds and lighting that do not clearly differentiate between fuel and urea aqueous levels, leading to confusion and inefficient liquid management.
Innovation Solution
Incorporating a liquid amount detection sensor and speaker system that outputs distinct notification sounds based on the frequency spectrum and output intervals for fuel and urea aqueous levels, allowing users to differentiate between the two through audible cues, and a controller to manage these notifications accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If buzzer sounds and lighting are used to notify users about liquid levels, then the notification function is provided, but the user cannot clearly differentiate between fuel and urea aqueous levels leading to confusion
Solution Approach 1:
The patent applies local quality by assigning different sound characteristics (frequency spectrum and output interval) to different liquid types. The fuel level notification uses one sound pattern while the urea aqueous level notification uses a distinct sound pattern, allowing users to differentiate between liquid types through local differentiation of notification properties.
Solution Approach 2:
The patent changes the parameters of the notification sound to convey different information. By varying the frequency spectrum and output interval of the buzzer sound based on the type of liquid being monitored, the system transforms a single notification mechanism into a multi-information carrier that can distinguish between fuel and urea aqueous levels.
2Device complexity
If a single notification sound is used for both fuel and urea aqueous, then the device complexity is reduced, but the information transmission capability is insufficient
Solution Approach 1:
The patent uses parameter changes to encode different liquid type information within a single notification system. By modulating the frequency spectrum and output interval parameters of the buzzer sound, the system transmits multiple types of information (fuel level, urea aqueous level) without adding separate notification devices, thus maintaining low device complexity while improving information transmission capability.
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
The system effectively notifies users about the replenishment of fuels and urea aqueous liquids by providing clear, distinguishable auditory signals, enhancing user awareness and management of liquid levels in work vehicles.
Implementation Method 1
a liquid amount detection sensor that is provided in the tank and measures an amount of liquid in the tank
Implementation Method 2
a speaker that outputs a notification sound
Data Source
AI summary
A work vehicle includes a tank, a liquid amount detection sensor, a speaker, and circuitry. The tank is configured to store a liquid. The liquid amount detection sensor is provided in the tank and is configured to measure the amount of liquid in the tank. The speaker is configured to output a notification sound. The circuitry is configured to control the speaker to output the notification sound when the amount of liquid per unit time detected by the liquid amount detection sensor increases. The circuitry is configured to stop outputting the notification sound when the amount of liquid per unit time detected by the liquid amount detection sensor does not increase.