Elevators TRIZ Cases

Computing system detects passenger information to schedule elevator and ground transportation resources, eliminating post-exit service delays.

Control system transmits elevator arrival data to fire alarm networks, enabling coordinated evacuation procedures.

A central support column enables elevator car movement without wall-mounted hoistways, allowing flexible installation in diverse building environments.

Radio field generator creates a spatial stray field around the stair lift chair to enable contactless authentication via a handheld control unit.

Binary landing sensors determine passenger counts to reduce waiting times during heavy traffic.

Segmenting elevators into modernized and unmodernized subgroups reduces interface complexity and costs during system upgrades.

Replacing mechanical governors with electrical control systems reduces overhead dimensions while maintaining reliability.

Ten-strand layered rope structure maintains dimensional stability to minimize vibration during high-speed super high-rise operations.

Complementary edges bridge expansion gaps between rail elements, reducing vibrations while accommodating thermal movement.

Automated elevator guide rail positioning system replaces manual installation to resolve accuracy and efficiency trade-offs.

A processor-driven control system monitors sensors to determine fault conditions and provide user feedback for vertical platform lifts.

Dual modulation frequencies resolve unambiguity range limits, enabling precise positioning across the entire elevator shaft.

Centralized server manages elevator passenger interface devices through unified processing logic.

A pit-mounted sheave redirects a coated steel belt to maintain traction, eliminating deep pit requirements for counterweight jump prevention.

Hinged uprights pivot the elevator car frame into a compact configuration, reducing installation time in restricted hoistways.

Automated rescue run bypasses manual intervention by using sensor feedback and reserve power for precise positioning.

A roller guide assembly uses an annular elastic member to urge rollers against a guide rail.

Safety controller calculates position displacement to differentiate partially and fully activated states, eliminating additional hardware complexity.

Segmented seismic retainers distribute sway loads to reduce guide rail size and bracket quantity.

A group control apparatus detects traffic flow ratios to activate distributed standby modes.

Hall destination floor input device transmits signals to open elevator doors on evacuation floors.

Processor-driven vertical platform lift control system monitors sensors and determines fault conditions to provide visual or audio alarms.

A computing system generates passenger profiles from frustration indicators to control elevator dispatch operations.

A pivotable connector links engagement members to brake elevator guide rails while allowing gap width adjustment for different rail dimensions.

Nested pivotable structures deploy a working platform into the hoistway for safe mechanic access without reducing passenger space.

Dynamic velocity profiles adjust acceleration and jerk parameters to minimize combined energy losses in elevator hoist motors.

Detects waiting passenger counts and available elevator car capacity to assign service vehicles, reducing unnecessary stops and crowding.

Integrated upper crosspiece and lower jig ensure accurate door centering while eliminating masonry rework and reducing installation time loss.

Aligned flyweight centers of gravity minimize false trips caused by acceleration sensitivity in compact elevator governors.

Tapered guide members align elevator cars with rails, reducing drive wear during installation.

Mobile applications receive floor identification codes from elevator transmission units to send travel requests, reducing manual entry errors.

A movable elevator apron transitions between blocking and access positions to control hoistway entry.

An intermediary device bridges proprietary elevator controllers with digital networks, resolving high upgrade costs while enabling health monitoring.

A control system determines elevator run time parameters through automatic measuring runs between selected floor pairs.

Adjustable cover plates with dampers stiffen the hoisting machine structure, dispersing vibration and noise from the axial flux motor.

Wireless transmission from a separate remote control unit maintains stairlift operation when the primary fixed control unit fails or becomes unavailable.

A rotating component actuated by an external device toggles the over-speed locking mechanism trigger member within the elevator speed limiter assembly.

A control unit detects reference values to automatically set main circuit bus voltage levels in elevator systems.

A controller adjusts elevator velocity using battery power and back-emf braking to execute a controlled stop.

Segmented hoistways isolate construction zones from active service areas, allowing phased modernization without shutting down the entire elevator group.

Fluid network equalizes pressure across plungers to balance rope tension, preventing uneven wear and reducing replacement waste.

A control system adjusts elevator rope tension and deck access based on detected building motion to mitigate sway.

A tubular termination assembly secures elevator belts using moving and fixed wedge surfaces to apply contact pressure.

A safety exit assembly uses a drive mechanism to move a door panel downward and outward for rapid emergency escape.

A portable inspection control station communicates wirelessly with the elevator control device to enable remote operation.

Variable thickness design reduces guide weight while maintaining structural strength, simplifying installation via resilient fastening elements.