Sanitary Cell Monitoring via Sensor Fusion and User Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sanitary cells in public transport vehicles, especially rail vehicles, lack effective monitoring of cleanliness, leading to reduced availability and passenger dissatisfaction, as cleanliness is typically only assessed during overnight depot inspections and not in real-time.
Innovation Solution
Equipping public transport vehicles with sensors to measure various parameters of the sanitary cell's state and a monitoring unit that generates a status description based on these measurements, combined with user feedback through a terminal, allowing for continuous monitoring and immediate notification of maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sanitary cells are monitored only during overnight depot inspections, then device complexity is minimized, but availability and cleanliness monitoring precision deteriorate
Solution Approach 1:
The monitoring system is segmented into multiple independent sensor units, each monitoring specific parameters (fill level, temperature, humidity, cleanliness) separately. These segmented sensors feed into a centralized evaluation unit, allowing comprehensive monitoring without requiring a single complex monitoring system.
Solution Approach 2:
The monitoring system uses multi-functional sensors that can detect multiple parameters (e.g., sensors that monitor both fill level and temperature). The evaluation unit universally processes different sensor inputs to generate comprehensive status descriptions, reducing overall system complexity while improving monitoring precision.
2Reliability
If multiple sensors are installed to continuously monitor sanitary cell parameters, then availability and cleanliness are improved, but device complexity and cost increase
Solution Approach 1:
Multiple sensors monitoring different parameters (fill level, temperature, humidity, cleanliness) are merged into a single centralized evaluation unit that processes all inputs. This combining approach maintains comprehensive monitoring capability while simplifying the overall system architecture and reducing complexity.
Solution Approach 2:
The system implements feedback loops where sensor data is continuously evaluated and used to generate status descriptions that can trigger alerts or automated responses. This feedback mechanism improves reliability by ensuring timely detection and response to sanitary cell issues without requiring overly complex monitoring infrastructure.
3Ease of operation
If real-time monitoring is implemented with continuous sensor data collection, then passenger satisfaction and cleanliness are improved, but energy consumption increases
Solution Approach 1:
Instead of continuous monitoring, the system uses periodic sampling of sensor data at predetermined time intervals. This periodic measurement approach maintains passenger satisfaction by providing timely status updates while significantly reducing energy consumption compared to continuous real-time monitoring.
Solution Approach 2:
The system monitors only the most critical parameters with high priority (such as cleanliness and fill level) using full real-time monitoring, while other less critical parameters are monitored periodically or with lower precision. This partial monitoring strategy balances passenger satisfaction with energy consumption requirements.
Data Source
AI summary
The invention relates to a public transport vehicle with a sanitary unit and a method for operating the vehicle, wherein it comprises at least one sensor (3) for recording measured values to describe a state of the sanitary unit and a monitoring unit (2) for generating a state description of the sanitary unit depending on the recorded measured values, wherein it has a terminal (1) for inputting information about the state of the sanitary unit by a user of the sanitary unit, wherein the monitoring unit (2) is suitable for generating the state description of the sanitary unit depending on the user's input.