Engineering Safety Devices TRIZ Cases

Radar sensors track operators and objects around machine tools without barriers, improving safety monitoring in dusty or low-visibility areas.

Coherent FMCW LiDAR combines radial speed and polarization data to segment objects more accurately under extraneous light.

Passive damping and gravity realign a monitoring mount after collisions, preserving field of view without motors or extra sensors.

3D LIDAR object detection distinguishes goods from people, enabling selective muting that avoids unnecessary shutdowns while preserving safety.

Timed bridging between switching and object signals enables safe muting of light-curtain monitoring without unnecessary system shutdowns.

Presence sensors split accessible and alarm zones so tissue converting lines can slow or stop machinery without extensive fencing.

A residual protective field lets an AGV optical sensor ignore permitted wall contours while still detecting unsafe intrusions without extra speed sensors.

Gyroscopes, IMU sensing, and magnetic interaction restrict limb motion near hazardous zones to reduce accidents caused by human error.

Cyclic comparison of radio position data and passage-zone sensors verifies sector occupancy, reducing hazards without unnecessary machine limits.

A narrowed IR beam filter blocks frame reflections, enabling accurate obstacle detection that stops a patient-support lift from lowering.

Dynamic optical protective fields adapt to permissible objects, cutting false alarms while keeping hazard zones safely monitored.

A pivot-shaft-driven cover closes the housing guide slot to block rain and dirt, reduce wear, and protect operators on refuse vehicles.

A pneumatically movable enclosure and modular roller shutters let one compact welding cell protect welders while keeping front and rear work areas accessible.

Optical, TOF, and LIDAR sensing matches personnel positions to wearables to alert or constrain drilling machines before collisions.

Differential capacitive sensing triggers a mechanical reaction to prevent user contact with cutting tools, including cordless tools without earth ground.

Flexible pillar straps secure guardrails to different column shapes while improving stability and shock absorption on elevated work surfaces.

Sensors and a pre-trained neural network detect human appendages in a 3D keepout zone and trigger tool shutdown with fewer false alarms.

A swing-down support with a lock and reset member holds the press cover open to prevent sudden drops and hand pinching.

Split fixed and movable guard elements protect label transfer during carousel adjustment, preserving safety across work processes and container formats.

Multi-sensor detection combines video, thermal, and capacitive sensing to cut false triggers and trigger fast blade protection on panel saws.

Portable devices and proximity thresholds let vehicles distinguish operators from pedestrians despite visual obstructions, reducing false safety triggers.

Two scanners use overlapping protection fields to monitor roll winder access points across varying roll sizes without adding sensors.

An adaptive light-barrier and sliding-door setup secures palletizer exits by distinguishing pallet movement from user entry across varying load sizes.

AI video monitoring detects hand entry into machining danger zones, then stops the chuck or cutter and triggers alarms to prevent accidents.

A synchronized pivoting-tilting door removes sliding guides, cutting maneuvering space and preventing jams from machining residues.

Continuous scream-pattern detection cuts power to electrical devices automatically when panic or pain sounds indicate an emergency.

Combining light curtain boundary detection with time-of-flight distance and size sensing improves safety zone response and access control.

Regional guard door control stops only the goods-carrying tool in the entered zone, protecting users while keeping other warehouse regions running.

RFID posts and a selected group leader keep worker locations visible in tunnels, letting the server compare positions with train operations and send alerts.

Two overlapping protective fields trigger automatic restart only when the hazard zone and entrance are both clear, reducing manual intervention.

Timed matching of protective-field violations and control signals enables muting without separate sensors, cutting shutdowns and saving space.

Multidimensional risk detection in a panel saw cuts false triggers while triggering warnings, blade slowing, shielding, or lowering before contact.

An emergency default state stops the cycle, vents hazards, restores ambient pressure, and opens chamber doors for escape or rescue.

Built-in RF, capacitive, camera, conductivity, or ultrasound sensing lets a power tool detect flesh or material changes and adjust motor operation.

Three contour detection fields let the optical sensor adapt protective field size around obstacles while avoiding unnecessary safety triggers.

An adjustable arm links a ballistic shield to a vest, maintaining protection while freeing both hands and reducing arm fatigue.

Periodic capacitance changes let a moving tool detect human tissue or hidden defects reliably without cameras or infrared sensors.

Built-in gutter rails and multiple hydraulic drives collect rosin without parchment paper while improving pressure uniformity and safety.

External trigger signals and detected environmental contours let the evaluation unit generate protective fields in real time with less setup effort.

An interlocking working head blocks motor start during baseplate changes and prevents disassembly in operation for safer sanding mode switching.

Test vectors verify AI sensor outputs to improve fail-safe object detection, error checking, and adaptation to changing conditions.

Signature checks and multi-channel AI evaluation detect processing errors in sensor assemblies to improve fail-safe industrial monitoring.

A counterweight-driven guard cuts drive space and energy use while shielding the machine working area from debris and jamming.

Connecting pleated fold sections between fold edges stabilizes support profiles, cuts vibration, and enables faster machine roof cover travel.

UV-modulated flash emitters and an event camera improve factory clothing equipment authentication and worker-machine distance accuracy.

Digital LOTO workflows replace paper logbooks and manual drawings to verify hazardous energy isolation faster and with fewer errors.

A combiner and optical path bender project welding data through the darkening filter, so operators can check settings without removing protection.

Grip detection switches power off when the handgrip is released, preventing accidental chainsaw restart while preserving easy reactivation.

A synchronized pivoting-tilting cabin door removes sliding guides to avoid jamming from machining residues while opening in tight spaces.

An adjustable holding device changes machine guard opening width to fit different handling modules while simplifying docking and maintaining safety.