Solution:
1. Python + opencv + tesseract to implement OCR. If the recognition rate of the open-source model is unacceptable, the recognition model needs to be trained
2. Send the recognition results to the web via HTTP
The simulated fire extinguishing equipment consists of two parts: a simulated flame and a simulated fire extinguisher. For the flame section, three solutions were tried: a fan blowing red cloth with lighting, a fan blowing steam with lighting, and projection. The core requirement addressed is to achieve aiming determination.