To provide a device for preventing wrong exchange in a money changer, which sufficiently prevents a wrong exchange action without complicating a currency discrimination function.
The device for preventing wrong exchange in a money changer A which discriminates thrown-in currencies C1, C2, and C3 to start money exchange is provided with an abnormal exchange detection means 30 which outputs an alarm signal in the case of detecting an abnormal money exchange action that money exchange is performed a prescribed number of or more times within a prescribed time. The abnormal money exchange action that exchange of much money will be performed in an extraordinarily short time in order to avert monitor's eyes is detected to prevent following wrong exchange or the like.
ISHIMURA KOJI
TOZAKI SHIGEO
