TOILET SEAT DEVICE WITH WEIGHT MEASUREMENT FUNCTION

摘要

PROBLEM TO BE SOLVED: To enable an accurate weight measurement in daily life by storing a value before weight is applied in a weight computation means, and using the stored value as an offset value for weight computation. SOLUTION: Pressure sensors 5b are arranged on the tops of four legs supporting a toilet seat. A signal amplification section 5c receives signals from the four pressure sensors 5b, and add and amplify the signals. Amplified signals are converted to digital signals with an A/D converter 6a, and input to a microcomputer 6b forming a weight computation means 6. The microcomputer 6b stores the value obtained in the case when the four pressure sensors 5b measure an output at a time when the seat is lowered as required and stores the value as an offset value Cd. The offset value Cd is the value of voltage outputted by the pressure sensors 5b at a time when load is zero, and weight can be measured accurately by subtracting the Cd when measuring weight.