Emulsion Tank Level Sensor with Visual Indicator
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Solution Overview
Problem
Paving machines face challenges in accurately indicating the fill status of emulsion tanks, leading to potential overfilling or insufficient emulsion fluid, which can cause operational disruptions during road construction.
Innovation Solution
A paving machine equipped with an emulsion tank level sensor system that includes a light indicator and alarm, positioned in the operator's line of sight, using different colored lights to signal full, low, and intermediate fluid levels, and a display to show the fluid level, ensuring operators are informed of the tank's status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple fluid level indicator is used, then the device complexity is reduced, but the information completeness deteriorates
Solution Approach 1:
The indicator system is segmented into multiple LED indicators arranged vertically, with each LED representing a specific fluid level threshold. This segmentation allows the system to provide detailed fill status information (multiple discrete levels) while keeping each individual indicator simple and the overall system manageable in complexity.
Solution Approach 2:
The patent transitions from a single-dimensional indicator (one light) to a multi-dimensional indicator system (vertical array of multiple lights). This dimensional expansion enables the system to convey more information about tank fill status without significantly increasing operational complexity, as the vertical arrangement provides intuitive visual encoding of fluid levels.
2Device complexity
If no level monitoring system is used, then the device complexity is minimized, but the operational reliability deteriorates
Solution Approach 1:
The system incorporates feedback through visual indicators that continuously monitor and display the fluid level in the tank. This feedback mechanism allows the operator to及时了解 the emulsion fluid status and take corrective action before the tank becomes empty, ensuring continuous paving operation and preventing process interruptions.
Solution Approach 2:
The level monitoring system enables preliminary action by alerting the operator to low fluid levels before the tank is completely empty. This advance warning allows the operator to refill the tank proactively, preventing operational disruptions and maintaining continuous paving operations.
3Adaptability or versatility
If the indicator is placed away from the operator station, then the layout flexibility is improved, but the information accessibility deteriorates
Solution Approach 1:
The indicator array is arranged vertically, utilizing the vertical dimension to maximize visibility from the operator station. This vertical arrangement ensures that all indicator lights are within the operator's field of view, providing excellent information accessibility while allowing flexible placement of the tank and indicator system within the machine's spatial constraints.
Data Source
AI summary
A paving machine includes an operator station including an operator display, a hopper to store paving material, a conveyor system to transfer the paving material to a dispersion system, and an emulsion system. The emulsion system includes an emulsion tank to store and dispense emulsion fluid, a sensor to measure a level of emulsion fluid, and a light indicator located in a forward line of sight from the operator station and including a first light portion signaling a tank full condition, and second light portion signaling an tank low condition.