Elevators TRIZ Cases

Solenoid-driven dampers clamp guide rails to reduce vibrations, ensuring stable rides and accurate weight measurements.

Automated torque control detects elevator brake moment changes using controller and encoder signals without manual intervention.

Contact sensors in the hoistway detect lateral rope movement, allowing controllers to mitigate building sway without complex expensive devices.

Segmented selector switches enable independent door bypassing while maintaining safety monitoring.

Autonomous car movers use sensor data and a State Observe Filter to estimate operational states for precise motion control.

An elevator control system coordinates multiple elevator groups through a transfer floor to maintain evacuation capacity when primary hoistways are degraded.

An elevator system uses an electrical connection device to switch between normal and brake test operations for secure stopping.

A laser distance measuring device determines elevator car location by combining optical time-of-flight measurements with independent sensor data.

A detection system monitors elevator car speed by evaluating traction sheave movement to initiate deceleration when deviations occur.

Frustum-shaped rack gears allow multiple cabins to share vertical space, reducing building footprint and energy consumption.

A detachable damping mass with integrated sensors detects lateral sways and twisting to prevent hoistway collisions.

Dual controllers monitor transport motion via a communication bus to detect failures early, reducing safety device complexity while ensuring safe stopping.

Capacitive sensors measure individual rope tensions to resolve installation complexity and cost issues in elevator monitoring systems.

Mobile terminals detect elevator shaft regions to activate measurement mode, eliminating manual activation and reducing hardware costs.

Inclination sensor detects improper load distribution by measuring tilt angle, preventing collisions caused by uneven weight.

Inclined sliding element ends and elastic damping absorb impact energy at rail joints, reducing material wear and extending service life.

Integrated diagnostic device measures vertical and horizontal acceleration with detection timing to resolve insufficient diagnostic capability.

A machine assembly overlaps car guide rails to reduce hoistway width.

A modular hanger mount and leveling cam system enables secure roller assembly installation within the elevator door structure.

Direct signal lines between microprocessors reduce production costs and energy consumption in elevator systems.

Deformable parallelogram mechanism enables elevator safety block engaging body to move parallel to guide rail for controlled engagement.

A diagonal arrangement of slack suspension switches monitors elevator car and counterweight tension states.

Wireless ad hoc networks connect sensors to smart devices, enabling mechanics to access real-time ride quality trends for efficient diagnostic scheduling.

Mechanical coupling replaces multiple safety switches with a single 3-state unit to lower wiring complexity and cost.

Coupling a sound pickup to the drive means captures counterweight vibrations, avoiding signal loss from distance and complex power requirements.

Elevator system redirects passengers to safe floors using real-time smoke density data, avoiding hazardous egress levels during emergencies.

A control system constructs passenger batch size distributions to estimate waiting riders and allocate elevators accurately.

Barcode markings and image sensors determine elevator car position, resisting building settlement drift and surface contamination.

A safety device uses door opening sensors and an evaluating unit to prevent unauthorized shaft door access.

Dummy landing indicators create unique patterns that enable accurate position recovery without lengthy correction runs.

A safety brake uses an electromagnetic actuator to position the trigger element before power loss, preventing abrupt mechanical transitions.

Mobile devices store preset elevator calls and execute them via geofencing, reducing manual input errors during dispatch.

Dynamic thresholds based on car position reduce erroneous stops from rope expansion, improving travel efficiency while ensuring passenger safety.

Direct solenoid actuation of the brake member eliminates complex governor assemblies, reducing weight while maintaining reliable braking performance.

Mobile device relays elevator data to reduce energy consumption and electromagnetic interference.

A sliding element moves elevator components between stowed and extended positions within a compact housing.