Safety Arrangments TRIZ Cases
- Dynamic Component Verification via Challenge-Response Authentication
A control unit sends encoded messages with random values to components for secure identification.
- Software Component Segmentation for Seamless Process Plant Upgrades
Segmenting control devices into independent software components enables seamless upgrades without redundant hardware.
- Motor Inertia Estimation via Position Feedback
Continuous inertia estimation eliminates time-consuming commissioning procedures while maintaining accurate drive control under fluctuating load conditions.
- Handheld Safety Switch Illumination Control for Connection Verification
Redundant lighting control devices activate safety switching element illumination based on signal connection states, preventing errors from faulty connections.
- Vehicle Booster Converter Circuit Current Limiting Control
A vehicle booster converter circuit adjusts switching duty ratio based on measured output voltage to constrain converter current within a predetermined range.
- Inflatable Restraint Sensor Housing with Magnetic Envelope
A domed protrusion forms a spatial envelope around the crash sensor to prevent external magnetic interference.
- Parity-Protected RAM for Uninterrupted Aircraft Control Software
Aircraft control system uses parity-protected random access memory to maintain continuous software execution during hardware faults.
- Facility Control System Preventing Duplicate Commands
A facility control system uses manual selection to execute substitute commands via a first-layer computer.
- Multi-Sensor Measurement System Using Reconditioned UKF Filter
A reconditioned unscented Kalman filter merges redundant sensor signals to produce a single accurate measurement output.
- Dual-Voltage Fan Power Supply With DC/DC Converter
A dual-voltage power supply system uses a switch and DC/DC converter to drive cooling fans with higher current.
- Dental Prosthesis Data Record Examination for Undercut Detection
A computing system examines digital data records of dental prosthesis parts to determine producibility and mountability using automated analysis.
- Networked Safety Lockout Consensus for RV Controllers
Networked controllers reach consensus on safety lockout status, preventing inconsistent behavior from independent detection.
- Encoder Fault Detection via Commanded Position Translation
Controller translates commanded position using original reference to prevent misdetection when holding modified origin data.
- Load Circuit Monitoring via Parallel Series Fault Detection
Parallel and series fault detection circuits monitor load switches to generate intermediate error signals for the controller.
- Fault Tolerant Microprocessor System With Parallel Core Segmentation
A microprocessor system distributes software modules across multiple intrinsically safe cores connected via a bus to detect and arbitrate errors.
- Mobile Isolation Device for Remote Equipment Energy Control
A portable console requests automated energy isolation from plant equipment via wireless signals to a central control system.
- Safe Torque Off Signal Transmission Over Network Wiring
A Safe Torque Off signal travels across existing twisted pair control cables using isolated direct or alternating current modulation.