On September 8, 2014, during the Mid-Autumn Festival, I invited a few old classmates to bring my wife and children to Jin Gui Lake for a family barbecue, while also rowing and swimming.
On a scorching summer day, gathering 7 or 8 friends to go deep in the mountains for stream tracing, rafting, and camping together is truly the most pleasant time of the year.
This incident started around 2013 when I bought a Sony laptop and got a TPLinx841 router as a gift. Possibly back in 2016, this router started occasionally disconnecting. Many forums summarized that the domestic version of the router had severely reduced hardware: USB and Flash were cut, RAM was cut in half. During research, I also learned that hard and software modifications can be made: swapping memory chips and flash memory, flashing OpenWRT, etc.
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.