How to use Vosk to realize voice wake-up function？

I'd like to use Vosk for voice wakeup in my browser, but I'm running into issues with false wakeups and difficulty getting the system to wake up.
I've read the documentation on fine-tuning Vosk: https://alphacephei.com/vosk/lm, but I'm still not sure how to improve the model's wakeup word recognition accuracy.Could you please provide more detailed information about the modification of information sources in Vosk model? Thank you very much!