Elevators TRIZ Cases

The interface resolves slow numeric keypad entry by storing frequent routes in memory, enabling rapid recall of departure-destination pairs on small displays.

A holder structure mechanically couples a passenger mobile device to an elevator car, transmitting forces directly to onboard sensors.

Direct coupling eliminates rope tension systems and friction, resolving uncontrolled force transmission during safety gear activation.

Integrating a rotating support into the landing doorway cavity adapts ladder storage to varying hoistway dimensions while ensuring operator safety.

Assigning passengers to qualified elevator cars that limit stop counts per rider, resolving the trade-off between minimizing wait time and reducing total stops.

A swing landing door warning system emits visual and audible signals upon cabin arrival to alert users before the door opens.

Electronic braking assembly adjusts frictional force via real-time load sensing to prevent harsh stops and passenger confinement between floor landings.

Horizontal pulley geometry applies direct tension to suppress elevator rope vibrations, reducing required tensile force and preventing equipment damage.

Optical detection replaces touch interfaces to eliminate disease transmission risks while avoiding complex wireless retrofitting costs.

A diagnostics function monitors control signals through a modernization overlay to detect operational anomalies in elevator systems.

A modular measuring device transfers proportionate loads between carrying cables to determine traction capacity without system modification.

A multi-car elevator control device adjusts door parameters using motor speed data.

A BLE module detects passenger movement via signal strength changes to automate elevator calls.

A rail foot holder uses a rotating holding head to adjust the holding dimension for secure fastening.

A time domain reflectometer launches source pulses through elevator tensile elements to detect structural damage.

A dynamic elevator allocation method signals passengers based on real-time lobby traffic data to optimize loading timing.

A control device switches elevator operation states based on network error ratios measured by communication controllers.

A motor adaptation unit stores configuration instructions to select door drive motors.

Computes bending cycles from travel data to assess rope strength, replacing inaccurate visual checks with reliable automated signals.

An electromagnetic sensor detects air gap changes through inductance data, eliminating manual inspection time and enhancing safety.

An electromagnetic actuator replaces complex mechanical linkages in elevator safety brakes, reducing component count while maintaining reliable braking force.

Multiple guide frames constrain lateral cable sway to prevent mechanical interference with hoistway components.

Active ride control system monitors acceleration signals to deactivate actuators when RMS values exceed thresholds, preventing resonance forces.

An optical communication network transmits brake release commands through hoistway nodes, eliminating long electrical connections and reducing energy loss.

An electronic governor monitors elevator car speed and position to trigger stopping appliances.

A regenerative drive powers an elevator hoist motor using main and backup supplies to ensure continuous operation.

A double deck elevator suspension assembly uses a drive sprocket to move a positive load bearing member for cab positioning.

A monitoring arrangement detects deviations in elevator brake control circuits to assess operational safety.

An elevator safety control unit detects suspension elongation changes through electrical resistance measurements to determine maintenance needs.

Automated sensors verify shaft clearance before the control unit switches modes, preventing accidents during maintenance.

Encoding unit combines elevator image and operational data into a single bit string, eliminating overlay concealment while maintaining correlation.

Automated brake testing merges with regular passenger transport cycles, eliminating separate maintenance runs and preserving elevator availability.

A counterweight holder uses a hook element to positively lock onto elevator guide rails for secure manual attachment.

Integrates governor assembly into counterweight structure, eliminating top-shaft space requirements.

Toggle lever arrangement reduces holding force in electromechanical lift brake actuators, lowering standby energy consumption.

Scheduling elevator accelerations and decelerations reduces peak power demand and prevents fuse overload.

Adaptive elevator door controls modify closing speed using sensor data to prevent collisions with approaching passengers.

Elevator controller adjusts operating modes based on detected user groups to resolve adaptability complexity trade-offs.

A dynamic elevator assignment system adjusts dispatch timing based on real-time user proximity and elevator position to optimize travel routes.

A hoistway door safety switch connects to an electronic actuator that engages a physical blockade member to stop the elevator car.

Segmented wirefix halves open around tensioned guide wires to allow in-situ replacement without de-tensioning, reducing service time.

Ceiling-mounted UVC radiation device with upward-facing LEDs and reflectors disinfects elevator input panels.

A universal digital control layer retrofits existing elevator systems to enable touchless mobile operation and independent health monitoring.

A semi-rigid curtain transitions from deployed to compressed state as the elevator car descends.

Wireless signals from a mobile device verify user boarding, canceling unnecessary calls and optimizing resource allocation.

A circuit arrangement applies pulsed electrical signals to elevator tension members for condition monitoring.

Standalone device with sensor and speaker provides audible floor announcements, resolving accessibility gaps for visually impaired riders.