Vending machine apparatus and method to prevent fraud and minimize damage from injected fluids

摘要

An apparatus and method for reducing vandalism and minimizing damage from liquids injected into apertures of a vending machine is described. An anti-salting module, having a housing with an integral tray for collecting liquids, is connected beneath a bill validator in a vending machine A rubber fillet is connected to the rear of the bill validator and directs injected fluids to the tray. A moisture sensor integral to the tray is connected to detection and control circuitry. When moisture is detected, the detection and control circuitry operates to interrupt power and control signals to the bill validator. Other external sensors, such as a second moisture sensor and a continuity sensor for monitoring the status of other vending machine components, may also be connected to the detection and control circuitry. After moisture has been detected, vending machine power and control signals can be restored only when moisture is no longer present, and a SET switch is depressed by service personnel.