Anomaly detection based on airflow measurement

A computer program product for anomaly detection, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• receive a real time airflow pattern detected from an airflow alerter, wherein me real-time airflow pattern is generated by a heating, ventilation, and air conditioning (HVAC) system in a facility;
• compare the real-time airflow pattern to a predetermined airflow pattern for the HVAC system;
• when the real-time airflow pattern is different from the predetermined airflow pattern;
• generate an anomaly alert message indicating an anomaly, wherein the anomaly alert message comprises an anomaly security level tag, wherein the anomaly security level tag comprises an indication of detection of an air loss,
• transmitting, by the processor, the anomaly alert message to an airflow receiver, and
• transmitting a signal to perform a security reconciliation action;
• and
• when the real-time airflow pattern is the same as the predetermined airflow pattern:
• generating a normal alert message indicating that the airflow alerter is in regular operation, wherein the alert message comprises a normal security level tag, wherein the normal security level tag comprises an indication that the airflow alerter is in regular operation, and
• transmitting, by the processor, the normal alert message to an airflow receiver,
• wherein the airflow alerter includes one or more conductive ends and a battery, wherein the battery is charged by a wind power generated by the one or more conductive ends, and wherein the battery powers the airflow alerter upon the airflow receiver's receipt of the alert message.

A system for anomaly detection in a facility having a heating, ventilation, and air conditioning (HVAC) system, wherein the HVAC system produces a regular airflow under normal conditions, the system comprising:

• an airflow alerter, the airflow alerter configured to detect a real-time airflow pattern generated by the HVAC system, wherein the airflow alerter includes one or more conductive ends and a battery, wherein the battery is charged by a wind power generated by the one or more conductive ends;
• an alert receiver configured to receive an anomaly alert message from the airflow alerter;
• a processor configured to:
• receive the detected real-time airflow pattern;
• compare the real-time airflow pattern to a predetermined airflow pattern for the HVAC system;
• when the real-time airflow pattern is different from the predetermined airflow pattern,
• generate an alert message indicating an anomaly, wherein the alert message comprises a security level tag, wherein the security level tag comprises an indication of detection of an air loss,
• transmitting the anomaly alert message to an airflow receiver, and
• transmitting a signal to perform a security reconciliation action;
• and
• when the real-time airflow pattern is the same as the predetermined airflow pattern,
• generate a normal alert message indicating that the airflow alerter is in regular operation, wherein the alert message comprises a normal security level tag, wherein the normal security level tag comprises an indication that the airflow alerter is in regular operation, and
• transmit, by the processor, the normal alert message to an airflow receiver,
• wherein the battery powers the airflow alerter upon the airflow receiver's receipt of the alert message.