Earthquake Measurement TRIZ Cases
- Retrofit Seismic Valve Shutoff With IMU False-Trigger Filtering
IMU sensing and signal analysis distinguish earthquakes from man-made vibration, enabling retrofit gas valve shutoff with remote status reporting.
- Seismic Valve Shutoff Control Using P- and S-Wave Detection
Three-axis accelerometer processing distinguishes P, S, and surface waves to cut false shutoffs and remotely close gas valves during earthquakes.