Recently doing a WiFi positioning of the project, mainly responsible for WiFi positioning of the label production, now have esp8266-01, based on the essence's esp IDE development, using the noos firmware, but using wifi_station_scan this function, found that the callback function returns scanning ap information is a bit slow, it takes about 3 s to completing scan, so for indeed poor real-time positioning, want to ask you how to accelerate the speed of a WiFi scanning,
If you have scan fast open source wifi module also implore you recommend

CodePudding user response:

See online say WIFI positioning, can be done within 1 s
But scan time did not say, like a as though said of GPS time can be reached within 1 s, but the first positioning generally takes a few seconds

CodePudding user response:

Positioning within 1 s, it requires that to locate around the client to the server to update the ap information time is less than 1 s, but now I am using this module cannot reach so fast speed,
Use an android phone to scan at the same time, the speed can reach hundreds of milliseconds, I don't know if this is the wifi module in mobile phone and I use the module performance is different or something,

CodePudding user response:

Why need 3 s, ah, so long as there are so many channels, should not

CodePudding user response:

reference fengzhongye51460 reply: 3/f

why need 3 s, so long ah,, just so much channel, should not ah

I use wifi_station_scan function, enter the callback through a serial port to print out all of the ap information is so long?
How to solve?

CodePudding user response:

At the same time to scan it with an android phone, speed can reach several hundred milliseconds under the original poster is how I want to learn thank you

CodePudding user response:

WIFI positioning can be achieved within 1 s

CodePudding user response:

Esp8266 can set the scanning time, and scanning way