Valve Diagnostic System with Self-Powered Ambient Energy Harvesting
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Solution Overview
Problem
Existing pneumatic brake system diagnostic and monitoring systems require frequent external charging or replacement of energy storage devices, increasing maintenance efforts due to their reliance on non-autonomous energy supply.
Innovation Solution
A self-sufficient valve diagnostic system integrated within the distributor valve of a pneumatic brake system, featuring a power supply unit that converts ambient energy into electrical energy using components like photovoltaic panels, thermoelectric generators, piezoelectric generators, or Tesla-turbines, combined with an energy storage device and additional sensors for comprehensive monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external charging or replacement of energy storage devices is used, then the system can operate continuously, but maintenance effort increases
Solution Approach 1:
The power supply unit converts ambient energy (such as kinetic energy from air flow through the brake system) into electrical energy, enabling the diagnostic system to generate its own power without external charging or replacement of energy storage devices, thereby eliminating maintenance effort while ensuring continuous operation
2Area of stationary object
If integrated design is used, then space requirements are reduced, but device complexity increases
Solution Approach 1:
The diagnostic system integrates multiple components including the power supply unit, pressure sensor, data hub, and additional sensors into a single compact unit that is incorporated within the distributor valve, reducing space requirements while managing complexity through functional integration
Solution Approach 2:
The integrated unit performs multiple functions: power generation through ambient energy conversion, pressure measurement, data processing, and environmental monitoring, thereby reducing the need for separate components and minimizing space requirements
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
This system reduces maintenance needs by generating its own energy, allowing for continuous operation without external charging, while providing comprehensive monitoring capabilities through integrated sensors and data processing.
Implementation Method 1
The power supply unit comprises preferably one of a photovoltaic panel, thermoelectric generator, piezoelectric generator, axle bearing generator and a small turbine
Implementation Method 2
The power supply unit comprises preferably one of a photovoltaic panel, thermoelectric generator, piezoelectric generator, axle bearing generator and a small turbine
Implementation Method 3
The power supply unit comprises preferably one of a photovoltaic panel, thermoelectric generator, piezoelectric generator, axle bearing generator and a small turbine
Implementation Method 4
It is a so-called Tesla-turbine which is capable of converting the kinetic energy of a fluid stream into rotational motion on very high rates per minute. Then again, this motion can be converted into electrical energy with the help of a current generator
Implementation Method 5
The pressure sensor is arranged within the valve and thus it is able to detect the pressure of the pipe system
Implementation Method 6
An accelerometer enables the detection of vibrations due to track and wheels
Implementation Method 7
a temperature and a moisture sensor allow conclusions about the existence and the amount of water within the pipes
Implementation Method 8
a temperature and a moisture sensor allow conclusions about the existence and the amount of water within the pipes, which can imply a significant danger to the system as water, for example condensed water, within the pipe can lead to damages of the system
Data Source
Figure 1
AI summary
A valve diagnostic system, especially for distributor valves of a pneumatic-only brake system for freight cars is disclosed. It comprises a valve (1), at least one pressure sensor (3) to detect the pressure of at least one pipe system (2), which is in fluid communication with the valve (1), a data hub (4) to receive the sensor data and transmit it to a data processing unit and a self-contained power supply unit (5) to power the consumers like the at least one pressure sensor (3) and the data hub (4) with electric current by converting ambient energy in electrical current.