Medical monitoring hub

In a caregiver environment, a patient monitoring device comprising:

• at least one port configured to receive a signal from a physiological sensor that senses light after it has passed through the tissue of the patient, the signal indicative of at least one physiological parameter of the patient in response to the sensed light associated with the patient, wherein the signal is indicative of a monitoring event;
• one or more hardware processors in communication with the at least one port, the one or more hardware processors configured to determine one or more measurements of the at least one physiological parameter of the patient from the received signal;
• and
• memory comprising at least a data module, a previous image module that has been tested and a latest image module, the data module configured to store the one or more measurements of the at least one physiological parameter, each of the latest and previous image modules comprising a system image that includes executable instructions to at least determine the one or more measurements of the at least one physiological parameter of the patient from the received signal;
• the one or more hardware processors in communication with the memory and further configured to:
• determine a state of an override;
• boot from the latest image module, wherein booting from the latest image module occurs during active monitoring when the override is enabled and occurs during a time of non-monitoring when the override is disabled.