Rail Vehicle Brake Test Device Segmentation
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Solution Overview
Problem
Existing mobile measuring devices for brake tests on rail vehicles are limited by their bulkiness and lack of mechanical stability, making them unsuitable for outdoor use and extreme temperature fluctuations, which hinders their mobility and practicality.
Innovation Solution
A mobile measuring device with a separate portable control terminal for input and display, communicating bidirectionally with the electronic measuring unit via radio interface, allowing for detachability and enabling the operator to conduct tests independently of the unit's location, while the compact electronic measuring unit is housed in a trolley case for enhanced mobility and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the measuring device is housed in a portable case with integrated components, then mobility is improved, but mechanical stability deteriorates due to heavy components straining case hinges
Solution Approach 1:
The measuring device is divided into separate components: a compact electronic measuring unit housed in a sturdy trolley case, and a separate portable control terminal. This segmentation allows the heavy electronic components to be protected in a stable housing while the control interface can be positioned separately for operator convenience.
Solution Approach 2:
A radio interface serves as an intermediary communication channel between the electronic measuring unit and the portable control terminal. This eliminates the need for physical connections through the case structure, reducing mechanical stress on the housing while maintaining functional connectivity.
2Device complexity
If the control terminal is integrated with the electronic measuring unit, then device complexity is reduced, but measurement precision deteriorates due to disturbance variables from long sensor cabling
Solution Approach 1:
The radio interface acts as an intermediary that enables communication between the electronic measuring unit and control terminal without requiring physical cable connections. This eliminates disturbance variables from long sensor cabling while maintaining bidirectional communication capability.
Solution Approach 2:
The mechanical connection system (cables and connectors) is replaced with a wireless radio communication system. This substitution eliminates the physical disturbance variables associated with long cable runs while maintaining the functional relationship between the measuring unit and control terminal.
3Ease of operation
If the electronic measuring unit is made compact for mobility, then ease of operation is improved, but reliability deteriorates due to reduced space for robust components
Solution Approach 1:
The device is segmented into a compact electronic measuring unit housed in a protective trolley case. The case provides the necessary space and environmental protection for robust electronic components, while the overall unit remains mobile and transportable.
Solution Approach 2:
The electronic measuring unit is housed in a protective trolley case that provides mechanical protection and environmental shielding before the device is subjected to harsh conditions during outdoor use. This pre-protection ensures component reliability while maintaining mobility.
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 solution provides a highly stable and mobile brake testing system, allowing for safe and efficient testing across various environments with reduced disturbance variables and improved usability, enabling precise control and evaluation of brake systems regardless of location.
Implementation Method 1
communicating bidirectionally with each other depending on the assigned radio interface
Data Source
Figure 1~3
AI summary
The invention relates to a mobile measurement device for carrying out a brake test in a rail vehicle, in particular having a pneumatic brake system on which are formed externally accessible measurement ports for pressure sensors (9a to 9c) whose electric measurement signal is processed by a mobile electronic measurement unit (8) which is connected to said sensors locally thereto, which measurement unit is provided with input means for control and with display means for a user dialog and for displaying measurement results, wherein the input means and the display means for the electronic measurement unit (8) are arranged in a portable control end unit (10), arranged separately from said electronic measurement unit, for remote control and for storable outputting of measurement results, wherein the electronic measurement unit (8) and the control end unit (10) communicate bidirectionally with one another via a respectively associated radio interface (11a; 11b).