...start digging around and you'll likely find something. HA has integrations which can support writing to InfluxDB (local for sure, and you can probably configure it for a remote influxdb).
You're looking at 1xRaspberry PI, 1xUSB Webcam, 1x"Power Management / humidity management / waterproof electrical box" to stuff it into, and then either YOLO and DIY to shoot over to your influxdb, or set up a Home Assistant and "attach" your frankenbox as some sort of "sensor" or "integration" which spits out metrics and yadayada...
https://www.unix-ag.uni-kl.de/~auerswal/ssocr/
https://github.com/tesseract-ocr/tesseract
https://community.home-assistant.io/t/ocr-on-camera-image-fo...
https://www.google.com/search?q=home+assistant+ocr+integrati...
https://www.google.com/search?q=esphome+ocr+sensor
https://hackaday.com/2021/02/07/an-esp-will-read-your-meter-...
...start digging around and you'll likely find something. HA has integrations which can support writing to InfluxDB (local for sure, and you can probably configure it for a remote influxdb).
You're looking at 1xRaspberry PI, 1xUSB Webcam, 1x"Power Management / humidity management / waterproof electrical box" to stuff it into, and then either YOLO and DIY to shoot over to your influxdb, or set up a Home Assistant and "attach" your frankenbox as some sort of "sensor" or "integration" which spits out metrics and yadayada...