In today's world where public transport plays a central role in urban mobility, the efficient and reliable transmission of signalling information to underground and suburban trains is crucial. FEIG ELECTRONIC has developed an innovative solution based on modern UHF RFID technology, which allows a cost-effective retrofitting of existing signalling systems.
Challenges in the Modernization of Signaling Systems
Many tram and metro lines have been in operation for decades, with older vehicles often running alongside newer models. Visual signal recognition by drivers is risky and error-prone. Modernizing these systems is often costly and time-consuming.
Use of UHF RFID Sensors for Signal Transmission
FEIG ELECTRONIC's solution uses passive, battery-free UHF RFID sensor transponders that are installed in the track bed or on the road. These sensors are wired to the existing signal systems and monitor their switching status.
Since the sensor cables can be several hundred meters long, it is possible to place the sensor transponders a few meters in front of the actual signal in order to transmit information to the vehicle at an early stage.
Integration on Trains
Advantages of the RFID-based solution
- Reliability and low maintenance
- Easy retrofitting
- Standardized technology
- Good practice
Vehicles are equipped with UHF RFID readers to read the sensor transponders. These readers recognize the transponders and transmit not only a unique ID, but also the current sensor status of the signaling system. For example, a stop signal can be sent to the vehicle when the sensor transponder is crossed.
The RFID reader receives the signal via an antenna mounted under the vehicle and forwards the information to the vehicle control system. Alternatively, existing signal lights or audible warning systems can be activated to alert the driver of the current signal. This integration does not require any modifications to the existing vehicle control system.
Vehicles are equipped with UHF RFID readers to read the sensor transponders. These readers recognize the transponders and transmit not only a unique ID, but also the current sensor status of the signaling system. For example, a stop signal can be sent to the vehicle when the sensor transponder is crossed.
The RFID reader receives the signal via an antenna mounted under the vehicle and forwards the information to the vehicle control system. Alternatively, existing signal lights or audible warning systems can be activated to alert the driver of the current signal. This integration does not require any modifications to the existing vehicle control system.
Advantages of the RFID-based solution
- Reliability and low maintenance
- Easy retrofitting
- Standardized technology
- Good practice
Other Potential Applications
In addition to classic signal detection, the combination of sensor transponders and RFID technology from FEIG ELECTRONIC enables further applications:
- Point position detection: This technology is used in monorail systems in China to detect points and transmit them to the vehicle at an early stage.
- Positioning: By capturing the unique ID of the transponder, location information can be linked, enabling precise positioning of the vehicle – even under difficult conditions such as in tunnels.
With this innovative RFID solution, FEIG ELECTRONIC offers an efficient, cost-effective and reliable way to modernize existing signaling systems and to increase safety and efficiency in public transportation. Contact me for an individual consultation!
