Train Control System Using Punctiform Data Transmission
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Solution Overview
Problem
Existing train control systems require significant equipment outlay and complex data transmission methods, particularly relying on controllable track coupling coils and balises for signal upgrading and data communication between trackside and on-board devices.
Innovation Solution
A method for operating a train control system using punctiform data transmission between route devices and on-board devices, where the on-board unit activates address data and route data at data points, eliminating the need for controllable track coupling coils or balises, and utilizing stored telegrams to select current signal information, allowing for simpler and less expensive data points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If controllable track coupling coils or balises are used for signal upgrading and data transmission, then reliable data communication between trackside and on-board devices is achieved, but equipment costs and system complexity increase significantly
Solution Approach 1:
The patent extracts the control function from the trackside equipment (removing the need for controllable track coupling coils or balises) and relocates it to the on-board unit. The on-board unit now activates address data and route data at data points and selects appropriate telegrams from stored memory, thereby achieving reliable data transmission while eliminating complex controllable trackside equipment.
Solution Approach 2:
The patent uses a stored complete set of telegrams in the on-board unit's memory that represent possible signal states. Instead of transmitting complex control signals from trackside, the system copies relevant telegram data to the on-board unit in advance, and the on-board unit selects the appropriate copy based on current signal aspects, simplifying trackside equipment while maintaining reliability.
2Reliability
If controllable track coupling coils and balises are deployed for data communication, then secure signal aspect transmission is achieved, but equipment outlay and installation costs increase
Solution Approach 1:
The patent removes the requirement for expensive controllable track coupling coils and balises by extracting the data selection and activation functionality to the on-board unit. The on-board unit activates address data and route data at simple data points and selects from pre-stored telegrams, achieving secure signal aspect transmission without the need for costly controllable trackside equipment.
Solution Approach 2:
The patent replaces expensive, complex controllable track coupling coils and balises with simple, inexpensive data points that require no active control mechanisms. The system uses passive data points combined with on-board memory and selection logic, significantly reducing equipment outlay while maintaining transmission security through the radio-based punctiform data transmission.
3Adaptability or versatility
If a complete set of telegrams is stored in the on-board unit's memory, then telegram selection based on signal aspects is enabled, but memory requirements and data storage capacity increase
Solution Approach 1:
The patent stores a complete set of telegrams representing all possible signal states in the on-board unit's memory in advance. This preliminary action enables the on-board unit to quickly select the appropriate telegram based on current signal aspects without requiring real-time computation or additional trackside equipment, achieving high adaptability while keeping the memory requirement fixed and predictable.
Data Source
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AI summary
The invention relates to a method for operating a train control system for a section having section block segments (A-B, B-C, C-D, D-E), which method can be performed with comparatively little device complexity on the section block segments. According to the invention point-wise data transmission occurs between a respective section apparatus having a section-side radio apparatus (22) at each of the ends of the section block segments (A-B, B-C, C-D, D-E) and a vehicle device having a vehicle-device-side radio apparatus. At data points (e.g., 20) at the ends of the section block segments (A-B, B-C, C-D, D-E), the vehicle device activates respective address data of the signal (e.g., C) of the respective next section block segment (e.g., B-C) and section data of the respective next section block segment but one (e.g, C-D) and respective storage data in the form of a stored complete set of telegrams that indicate the possible states of the signal (e.g., C) at the respective end of the next section block segment (e.g., B-C). After each data point (e.g., 20) is passed, the vehicle device sends a transmission request (Sc) to the section-side radio apparatus (e.g., 22) at the end of the next section block segment (e.g., B-C), where secured information (Jc) of the respective signal aspect indicated on the signal (e.g., C) of said section block segment (e.g., B-C) is held ready by an information apparatus (23). Said secured information (Jc) is sent by the section-side radio apparatus (22) to the vehicle device by means of the device-side radio apparatus in order to select a current telegram in the vehicle device on the basis of the storage data by means of said secured information. The invention further relates to a train control system.