Integrated management device based on big data platform, method and system

An integrated management device based on a big data platform, the integrated management device comprising:

• a communication unit configured to communicate with a big data collection device and a user terminal;
• and
• a processor electrically connected to the communication unit and configured to control an operation related to integrated management based on the big data platform,
• wherein the processor includes:
• an extraction module configured to extract a text and a table in an image file of pieces of public data and a text and a table in a PDF file of the pieces of public data among big data, which is received from the big data collection device, through the communication unit by using AI OCR;
• a preprocessing module configured to input unstructured data related to the text and the table in the image file and the text and the table in the PDF file into an AI model, and to perform preprocessing to store structured data in a form of key and value, which is learned and output based on the AI model, in a relational database;
• a search interface module configured to perform an integrated search on unstructured data and structured data in a requested public data based on SDK and RestfulAPI when a search request for the requested public data among the pieces of public data is received from the user terminal;
• and
• a display interface module configured to display the found public data through the user terminal.