Methods and systems for determining flow direction using a bidirectional pressure sensor

摘要

Computerized methods and systems for determining flow direction relative to a bidirectional pressure sensor are provided. The method includes receiving pressure information from the bidirectional pressure sensor. The method includes using the pressure information to evaluate, at a processing circuit, pressure at the bidirectional pressure sensor over time, The method includes assigning a flow direction to a current pressure of the bidirectional pressure sensor by comparing the current pressure to at least one past pressure.

主权项

1. A method for determining flow direction relative to a single bidirectional pressure sensor, the method comprising:
coupling one or more airflow hoses to a HVAC component, wherein the airflow hoses are coupled to the bidirectional pressure sensor and provide airflow from the HVAC component to the bidirectional pressure sensor; measuring pressure information using the bidirectional pressure sensor and providing the pressure information to a processing circuit in communication with the bidirectional pressure sensor; using the pressure information to evaluate, by the processing circuit, pressure at the bidirectional pressure sensor over time; identifying a plurality of past pressure values measured by the bidirectional pressure sensor, the past pressure values comprising a minimum past pressure value and a maximum past pressure value greater than the minimum past pressure value; calculating a range of the past pressure values, wherein the range is defined by the minimum past pressure value and the maximum past pressure value; assigning, by the processing circuit, a flow direction to a current pressure measured by the bidirectional pressure sensor by:
comparing the current pressure measured by the bidirectional pressure sensor to the range of past pressure values measured by the same bidirectional pressure sensor;assigning a first flow direction if the current pressure is greater than or equal to the maximum of the range; andassigning a second flow direction if the current pressure is less than or equal to the minimum of the range; and performing, by the processing circuit, a control activity using the assigned flow direction.