Elevators TRIZ Cases

A robot riding on the elevator car lets technicians direct shaft maintenance without entering hazardous spaces, improving safety and traceability.

Pre-made pillars, beams, and reinforced joints replace on-site welding, cutting lift structure assembly time while preserving stability and load capacity.

Electronic information plates let controllers verify elevator component identity, quality, and lifecycle data to prevent fraud and unsafe replacements.

Angled belt ends enlarge contact surfaces so connector pins can make sealed, durable electrical connections for precise elevator suspension inspection.

Real-time occupant counting lets the dispatch controller reassign elevator cars by available capacity, reducing full-car dispatches and wait times.

Selective safety-chain bypass lets one technician manually position the elevator car for safer access to shaft safety devices.

Optical indicator reading enables non-intrusive remote diagnostics of passenger transport control units without risky retrofit wiring changes.

Sensor and control data guide remote or on-site elevator rescue, reducing technician workload and speeding passenger release.

Car vibration is suppressed by removing vibration-frequency components from motor speed commands, avoiding complex rope-parameter calculations.

Vertical car movement pulls elevator ropes from reels through a rope wheel and car-mounted clamps, enabling gentle, aligned installation.

Unsafe robot-issued elevator commands are screened by a safety interface using compatibility and timing checks before control execution.

An actuator triggered by the service limit device unlocks the upmost landing door, enabling maintenance access and passenger evacuation.

Separating MRL elevator controls into shaft-side and external assemblies cuts wiring and installation effort while preserving maintenance access and safety.

Correlating safety chain status with drive hardware signals helps distinguish true drive faults from safety breaks and speeds elevator diagnosis.

A car-mounted laser measures shaft top, bottom, and lateral markers to improve elevator position accuracy and cut learning-run time.

A unified elevator control and power stage cuts wiring complexity while enabling safer software updates and autonomous safety checks.

Operational data from loading and travel cycles is used to estimate elevator car load without complex sensors or control-system access.

Combining historical origin-destination patterns with current cycle counts improves elevator group traffic forecasts under unexpected demand changes.

Coil-wound tires and track features boost traction and guidance in ropeless elevator car movers while reducing clamping force and slippage.

Wireless codes sent from the elevator car let landing fixtures store unique addresses automatically, cutting setup time and programming errors.

Discrete hoistway magnets and a car-mounted GMR sensor enable precise floor alignment without continuous position detection hardware.

When a safety switch stops the car near a landing, zone-based door control allows safe passenger release without opening in hazardous positions.

A guide portion aligns the movable member with the electromagnet, cutting return-operation motor load despite assembly tolerances.

Integrated LIDAR, RADAR, or RGBD sensing detects personnel in the elevator pit and opens the safety chain to stop car movement.

Torque measured at brake release and constant speed reveals elevator brake drag early, helping prevent heat, wear, and brake holding failure.

A balance check gates elevator brake testing so the actual test load is valid, preventing unsafe verification under incorrect counterweight conditions.

When shaft obstructions block normal sliding, a pivoting lift cabin door leaf clears the opening for safe evacuation without force.

Buffered backup power lets the elevator door drive brake a closing door during outages, reducing slam noise, damage, and retrofit complexity.

Automatic monitoring of even and odd landing door signals switches the elevator into hoistway service mode to reduce manual safety errors.

A fixed-point indicator mark tracks coated elevator belt or rope elongation, enabling accurate low-cost replacement decisions.

Broadcasted elevator request packets let mobile terminals identify responded commands without many connections, easing channel congestion.