Techniques for extracting machine-readable information from p&ids

A computing device comprising:

• a display screen;
• a processor;
• and
• a memory coupled to the processor and configured to store a piping and instrumentation drawing (P&ID) in image-only format and a P&ID data extraction application, the P&ID data extraction application when executed operable to:
• predict using optical character recognition (OCR) bounding boxes and text for text boxes in the P&ID,
• detect using machine learning symbols in the P&ID and return a predicted io bounding box and predicted class of equipment for each detected symbol,
• infer using machine learning properties for each detected symbol, and
• store, for each detected symbol, the predicted bounding box and a label including the predicted class of equipment and inferred properties in a machine-readable format in the memory.

A non-transitory computing device readable medium having instructions stored thereon, the instructions when executed by one or more computing devices operable to:

• predict, using optical character recognition (OCR), bounding boxes and text for text boxes in a piping and instrumentation drawing (P&ID) in an image-only format;
• detect, using machine learning, symbols in the P&ID and return a predicted bounding box and predicted class of equipment for each symbol;
• decimate one or more of the predicted bounding boxes to avoid overlapping detections;
• infer, using machine learning, properties for each detected symbol having a remaining predicted bounding box;
• and
• store in a machine-readable format, for each detected symbol having a remaining predicted bounding box, the predicted bounding box and a label including the predicted class of equipment and inferred properties.