Elevators TRIZ Cases

Variable speed controller parameters reduce elevator noise and vibration during constant speed operation while maintaining quick response during transitions.

An elevator access control module switches between normal and safety modes based on removable device presence.

Segmented intermediary terminals connect directly to load-bearing core wires, eliminating time-consuming disassembly and rework during detection.

Asymmetric elevator safety wedges use a U-shaped elastic element to transfer force through a blocking piece, maintaining repeatable braking despite wedge wear.

A sensor-equipped elevator beacon broadcasts signals to mobile devices upon detecting user boarding intent.

A roller guide assembly uses a single support sheet to mount three rollers with orthogonal axes for vertical cab guidance.

A destination floor indication device switches between multiple display layouts to show registered floors clearly.

Vertical sensor arrangement enables parallel overspeed monitoring, reducing hoistway detection members while maintaining reliability.

Controller monitors elevator car position near landing to apply machine brake for safe door operation.

An elevator controller checks shaft door status and car position within the door zone before departing to another floor.

Consolidating voice and control into one DECT path eliminates RF interference and reduces certification costs.

Segmented holding elements enable safe elevator operation during assembly by providing mechanical fall protection when energy supply is insufficient.

Single carrier installation device uses pivotable support to align receiving plane horizontally, eliminating complex deflection mechanisms in deep shafts.

Automated elevator floor assignment replaces manual switch setting with position data transmission, eliminating configuration errors and reducing setup time.

A multilayer resin core uses distinct colors to reveal wear depth through powder generation during operation.

A safety monitor commands an actuator to decelerate the elevator car before entering a defined safety zone.

A tilting safety element moves along a guide axis to engage friction braking during emergency load movement.

A mechanical tensioning device uses snap-fit members and a trigger mechanism to secure elevator compensating sheaves.

A registration device specifies candidate floors via a two-dimensional barcode reader to automatically set departure and destination levels.

Segmented testing isolates individual brake units to measure precise braking torque, resolving limited maintenance data from traditional multi-brake monitoring.

A destination operating panel paired with a group boarding registering device detects user counts to assign elevator cars based on capacity.

Distinct inner and outer cord configurations balance breaking strength with fatigue life in elevator systems.

A portable electric ramp uses suction cups and a winch to move cargo between surfaces at different elevations.

Segmented safety control units monitor shaft doors locally to eliminate central processing delays and reduce signal transmission time.

Security panel bridges building access control and elevator dispatching via hardware contacts, eliminating complex TCP/IP integration costs.

Simulated door-open signals allow the safety monitoring inspection section to verify unintended car movement protection without physical door openings.

Piezoelectric weight sensors in elevator refuge spaces automatically detect personnel presence to prevent entrapment risks when standard safety protocols fail.

Visual item selection captures passenger cargo volume to prevent elevator car overcrowding.

A hoist drum control system reduces conveyance speed in calculated zones to prevent transversal resonance.

A stalling detector switches to rescue mode to prevent false alarms during elevator car movement.

Resin coating fills structural gaps in the fiber core to improve packing density, avoiding expensive woven sleeves that increase manufacturing time.

Periodic signal pulses from fixed terminals localize users in elevator zones, reducing interference and enabling secure data transmission.

Electronic safety nodes replace electromechanical contacts to simplify assembly, lower costs, and enable remote fault detection.

A group controller calculates zone waiting times to reassign elevator sub-systems, preventing circular path delays and reducing passenger service time.

Positioning the brake unit radially outward reduces vertical dimensions, increasing counterweight travel range while maintaining maintenance access.

Comparing estimated motor torque against realized torque during elevator runs identifies incomplete brake opening, eliminating expensive mechanical switches.

Segmented closed sections with levelling screws anchor into concrete recesses, eliminating on-site welding while maintaining load-bearing capacity.

Safety controller disables motor power and applies brakes when speed limits are exceeded, re-enabling power to prevent rapid deceleration discomfort.

Sequential ink reservoir refilling creates color gradients on beverage cans without interrupting the dry offset lithography process.

Replacing 2-D cameras with 3-D depth sensors resolves illumination sensitivity and occlusion issues in elevator passenger tracking.

A mobile user interface displays estimated elevator arrival times through dynamic visual components that adjust appearance based on real-time status.

Elevator control device transmits an identifier to a programming device for secure local access verification.

A movable guide mechanism adjusts position to maintain compensation chain alignment during normal elevator operation.

Brake controller cancels delay near travel path ends to prevent buffer impact while maintaining passenger comfort during emergency stops.

Optical signaling replaces variable IP addresses to identify identical elevator components, resolving wireless propagation issues.

A sensor-based monitoring system detects elevator door operating states through physical parameter analysis.

An electrical motor winds a safety rope to lift the elevator car, replacing manual clamps and reducing release time.

A group control method allocates elevator calls by evaluating energy storage charging status, reducing peak demand and infrastructure costs.

Hall destination floor registration device validates user inputs based on assigned car availability, resolving missed ride bottlenecks.

Rail segments affixed to hoistway walls via support brackets transfer vertical loads while accommodating thermal expansion through angled tongue and groove joints.