Coin Testing TRIZ Cases

A coin processing device uses switching between individual and series coil connections to detect outer diameters.

Clip formations on a removable coin validation unit enable easy installation while maintaining secure electrical connectivity.

Optical time-of-flight measurement replaces ultrasonic sensors to eliminate blind areas and environmental dependence in coin tube fill level detection.

A change machine uses an operator determining unit to identify depositors and a deposit control unit to manage currency acceptance.

Series coin stack resistance detection replaces mechanical counters to verify insertion completion and distinguish forged coins.

A coin validation device uses a bidirectional carrier to transport coins in opposite directions for discrimination.

A coin acceptor uses time-of-flight proximity sensing to measure distance and calculate coin quantity in tubes.

A dual set of coin sensors spaced along a guide path detects coin presence to prevent incorrect value assignments.

Track sections move relative to a static support to stabilize primary items while an ejection portion directs surplus money away.

A portable currency evaluation device uses a mobile sensor array to capture physical parameters for authenticity verification.

A rotating disk with protrusions lifts coins while a guide directs the peripheral edge to prevent multiple small coins from catching simultaneously.

A coin processor redirects overflow coins to refund or change outlets using a control portion.

An oscillator synchronously switches frequencies to determine multiple money item properties.

Helical blade sections on a rotating shaft convey coins while preventing tilted rotation caused by belt friction loss.