Beverage maker platen overflow sensing system

A beverage maker platen overflow sensing system, comprising:

• at least one process control board (PCB) comprising:
• at least one processor communicatively coupled to one or more solenoid valves, the solenoid valves configured to control a flow of a fluid into a server positioned in a platen;
• at least one memory coupled to the processor, the memory configured to store encoded instructions for controlling the solenoid valves, the encoded instructions executable by the processor;
• and
• an overflow detection circuit electrically coupled to the solenoid valves;
• at least two signal probes disposed within a forward portion of the platen, the signal probes electrically coupled to the PCB via wire hardness;
• and
• a platen probe disposed within a lower portion of the platen, the platen probe electrically coupled to the PCB and configured to provide a ground path to the PCB when the system is in a default state;
• the overflow detection circuit configured to:
• generate at least one electrical signal between the signal probes;
• detect an overflow state of the system based on a ground signal between at least one of the signal probes and the platen probe, the ground signal conducted by the fluid;
• and
• when the overflow state is detected, cease the flow by electrically closing the solenoid valves.

A beverage maker device, comprising:

• a housing including a platen configured to accommodate a server, the housing installable in an aircraft galley;
• a manifold disposed within the housing, the manifold configured to dispense a fluid from a tank into the server, the dispensing of the fluid controlled by one or more solenoid valves of the manifold;
• a human-machine interface (HMI) disposed within the housing and configured to receive control input from an operator;
• a process control board (PCB) disposed within the housing, the PCB comprising:
• at least one control processor communicatively coupled to the solenoid valves;
• and
• at least one memory coupled to the control processor, the memory configured to store encoded instructions associated with controlling the solenoid valves, the instructions executable by the control processor;
• a primary overflow sensor coupled to the server, the primary overflow sensor configured to:
• detect a fluid level within the server;
• and
• when the fluid level reaches a level threshold, transmit an overflow signal to the control processor, the control processor configured to cease the dispensing of the fluid according to the encoded instructions on receiving the overflow signal;
• and
• a secondary overflow sensor system, comprising:
• at least two signal probes disposed within a forward portion of the platen, the signal probes electrically coupled to the PCB via wire hardness;
• at least one ground probe disposed within a lower portion of the platen, the ground probe electrically coupled to the PCB and configured to provide a ground path to the PCB when the device is in a default state;
• and
• an overflow detection circuit disposed within the PCB and electrically coupled to the solenoid valves, the overflow detection circuit configured to:
• generate at least one electrical signal between the signal probes;
• detect an overflow state of the device based on a ground signal between at least one of the signal probes and the ground probe, the ground signal conducted by the fluid;
• and
• when the overflow state is detected, cease the dispensing of the fluid by electrically closing the solenoid valves.