Automatic Train Brake Test System Using Local Radio Network
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Solution Overview
Problem
Current brake test methods for trains are time-consuming and require multiple personnel, with existing automation solutions lacking in safety and reliability, particularly in areas without internet connectivity and failing to detect mechanical faults like bent brake rods or missing brake pads.
Innovation Solution
An automatic brake test system using evaluation units on each wagon to measure brake cylinder pressure and braking force, transmitted to a central device via a local radio network, ensuring secure communication and authentication, allowing for fully autonomous operation without a wagon inspector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual brake testing is performed by a wagon inspector walking through all wagons, then comprehensive inspection of brake conditions is achieved, but the process takes at least 30 minutes and requires multiple personnel
Solution Approach 1:
The patent replaces the mechanical inspection process (wagon inspector physically examining brakes) with an automated measurement system using sensors that detect brake cylinder pressure and braking force, eliminating the need for manual walking inspection while maintaining comprehensive monitoring of all wagons
Solution Approach 2:
The brake testing system performs self-inspection through onboard sensors and evaluation units that automatically measure and assess brake conditions without requiring external human inspectors, enabling the train system to verify its own brake functionality
2Productivity
If automation is introduced to reduce train preparation time, then operational efficiency is improved, but safety and reliability are compromised as mechanical faults like bent brake rods or missing brake pads cannot be detected
Solution Approach 1:
The patent replaces manual mechanical inspection with automated sensors that measure physical parameters (brake cylinder pressure and braking force), providing objective quantitative data that reliably detects brake malfunctions including mechanical faults without requiring human inspectors
Solution Approach 2:
The system continuously monitors brake parameters and provides feedback through evaluation units that compare measured values against expected ranges, automatically identifying deviations that indicate mechanical faults such as bent brake rods or missing brake pads
3Ease of operation
If existing automation systems use Internet communication for brake testing, then data transmission is simplified, but security is compromised and the system cannot operate in areas without Internet connection
Solution Approach 1:
The patent introduces a local radio network as an intermediary communication layer between wagons and the central evaluation system, enabling secure data transmission without requiring Internet connectivity and providing operational independence from external networks
Solution Approach 2:
The communication system is segmented into independent local radio networks for each train, allowing autonomous operation without dependency on centralized Internet infrastructure and enabling simultaneous operation of multiple trains in marshalling yards
Data Source
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AI summary
The invention relates to a method for carrying out an automatic brake test on a train which comprises a number of carriages (a, b, c) equipped with pneumatically mechanical brakes. The pneumatically mechanical brakes have a brake control valve (1) which is controlled by a main air line (HL) and a pneumatically operated brake cylinder (8), the brake cylinder pressure (10) of which is controlled by the brake control valve (1). The brake cylinder transmits the brake cylinder pressure (10) to a brake lining, in particular a brake pad (2) or brake jaws, via mechanical components of the brake, such as a brake linkage (3) for example, and thereby generates the braking force of the brake. Each carriage is equipped with an analysis unit (20). The brake cylinder pressure (10) and the braking force produced by the brake cylinder pressure (10) are sensed on each carriage, analyzed by the analysis unit (20), and transmitted to a central device (ZG1).