Visible Signals TRIZ Cases

Radar, LIDAR, and metasurface markers let guideway vehicles localize and align accurately when control communications are interrupted.

A railway signal mounting joint uses mating cylindrical surfaces and accessible fasteners to resist wind loads and simplify alignment and retightening.

Improved circuit topology enables safe LED signal light cut-off, panel status detection, and carrier-wave communication without dummy loads.

Power-line communication and DIP-based lamp IDs let railroad LED flashers report strip status for early fault detection and compliance.

Inner and outer emitters create wide and narrow light divergence, helping drivers see rail signals from close range to distance.

Reflective inclined surfaces mark culverts beneath railroad tracks, replacing labor-intensive tie painting and frequent repainting.

A metallic support mainbody conducts heat from the lighting module while an insulating support portion limits signal transmission interference.

A logic controller assigns lamp IDs and sends LED status over existing power lines to detect railroad flasher faults.

Global and local luminosity features support automated signal status detection without tedious manual image annotation.

A railway signal replacement lamp module uses spring-loaded connectors to interface with existing electrical conductors for secure alignment.

Hardware cross-coupling circuits replace complex software logic to automatically block contradictory signaling states and ensure operational safety.

Relocating beacons to the vehicle body reduces trackside infrastructure costs while maintaining SIL-4 safety integrity.

Modulating current form via a rectifier element enables remote fault detection, eliminating the need for dedicated error signal cabling.

A lineside electronic unit determines traffic signal activity by comparing measured current values against stored thresholds.

Curved snow shields and transparent wind guides create external air paths that reduce wind forces on elevated railroad signals by 40 percent.

A derailer placement warning system uses a pressure switch or wireless transmitter to activate an LED panel via solar power, eliminating manual flag errors.

Continuous rail connection eliminates hand-grasping delays during mine egress, while directional protrusions prevent reverse travel into hazardous zones.

A light assembly uses magnetometer and accelerometer sensors to determine precise alignment of railway wayside signals.

Automated actuator extends cover material over railway signage windows via remote transceiver signals.

A circuit arrangement designates a master LED point with adjustable impedance to mimic incandescent lamp operation for existing railway signals.

Storing the bus address on the fixed base part prevents accidental changes during maintenance, ensuring correct addressing.

Laser scanners identify track obstacles while LED direction lights guide drivers, replacing manual switch operations.

A DC lamp driver card supports multi-voltage operation for railway lighting systems.

Periodic sampling of signal currents reduces energy consumption in self-sufficient mini-LEUs while maintaining detection accuracy.

Segmented signal transmitter manages day-night operations and eliminates interference voltages for reliable railway signaling.

Wireless warning units distribute light signals along the track to define decommissioned zone boundaries for maintenance workers.

A lens embedded with quantum dots down-converts LED emission to produce distinct red or green light.

A clock signal output device generates a monitoring voltage via a charge pump circuit to verify microprocessor signal integrity.

A method determines effective series resistance from input current and voltage to calculate a source voltage for LED signal transmitters.

Diversified resistors and switching devices in isolated channels prevent common mode failures.

A support frame attaches to both rails using segmented clamps and extendable feet.

A rotatable mounting arrangement connects a railway signal head to a post via a fixed attachment member and a rotating component.

Hydraulic switch device uses a mechanical target coupled to the point rod for reliable position detection without electric power.

Tilting the optical axis by 5 to 6 degrees reduces phantom light reflections without adding internal shields, maintaining compact housing volume.

Segmented signal mast uses insulating layers to isolate electrical components from ground potential.

A monitoring method applies short constant current pulses to charge supply line capacitance for accurate LED functionality assessment.

An LED unit monitors voltage differences between alternating strings to detect internal faults during operation.

Activating a trackside braking device inside the protective section reduces required guard area length while maintaining train safety standards.

Allocating virtual main and target signals to vehicles optimizes braking curves, preventing conflicts in track sections while managing route complexity.

Timer measures flashing pauses to maintain shutdown signaling, resolving unreliable error detection in railway safety systems.