Я предоставлю свой код. Основная цель – идентификация автомобиля. Моя единственная гипотеза заключается в том, что мой ноутбук имеет несколько сигналов Bluetooth, но, похоже, это происходит и с другими устройствами. Это довольно простая цель, и проблема может заключаться даже не в самом коде. Судя по тому, что я обнаружил, не существует какого-либо известного побочного эффекта уклейки, вызывающего это. Вот код, любая помощь будет оценена по достоинству:
# -*- coding: utf-8 -*-
"""
Source: https://bleak.readthedocs.io/en/latest/api/scanner.html
"""
import asyncio
from bleak import BleakScanner
import time
# identifier code for the scanning device
device_id = ""
while device_id not in ("1", "2"):
device_id = input("Enter a 1 or a 2 for either scanner 1 or scanner 2:")
# running dictionary of discovered devices with discovery count
discovered = {}
# when the device was first discoverd
first_discover = {}
# when the device was last discovered
last_discover = {}
# max gap between discovery
max_discover_gap = {}
maxcount = 0
maxtime = 0
#Dynamic File Names
timestamp_str = time.strftime("%Y-%m-%d_%H-%M")
TXT_FILE = "scanner_" + device_id + "_" + "ble_data_" + timestamp_str + ".txt"
async def main():
stop_event = asyncio.Event()
# initializing scanning recording file
# TODO: does not currently allow the program to run twice
# How we would handle the event where the program is interrupted and
# has to run again must be decided
f = open(TXT_FILE, "w", encoding="utf-8")
try:
f.write("[Device]\n" + device_id + "\n[BTLECAPT]\n")
f.flush()
# Asyncronous event detection for stopping the program
async def wait_for_enter():
print("Press Enter to stop scanning...")
# do more research on async event loops
await asyncio.get_event_loop().run_in_executor(None, input)
#stops the current loop
stop_event.set()
def callback(device, advertising_data):
global maxcount, maxtime
# todo: do something with incoming data
print(device.address, advertising_data.rssi)
discover_time = time.time()
# If undiscovered initialize discovery
if device.address not in discovered:
# begins discovery count
discovered[device.address] = 1
# Setting the first instance it was discovered
first_discover[device.address] = discover_time
# setting up the largest discovery gap between devices
max_discover_gap[device.address] = 0
else:
# increments discovery
discovered[device.address] = discovered[device.address] + 1
# calculate gap in discovery time
gap = discover_time - last_discover[device.address]
# if gap is greater than discover gap then update value
if gap > max_discover_gap[device.address]:
max_discover_gap[device.address] = gap
# set last discovered to new discover time
last_discover[device.address] = discover_time
time_diff = last_discover[device.address] - first_discover[device.address]
# random vairable probably for experimentation
'''
if time_diff > maxtime:
maxtime = time_diff
print("MAXTIME:" , device.address, round(maxtime,2), discovered[device.address], round(max_discover_gap[device.address],2))
'''
# writes scanned data into our file
# creating and adding the scan info to record file
f.write(str(round(discover_time,2))+ ","+ device.address[:8] + "," + device.address + "," + str(advertising_data.rssi) + "\n")
f.flush()
'''
print(device.address, advertising_data.rssi, discovered[device.address])
if discovered[device.address] > maxcount:
maxcount = discovered[device.address]
print("MAX:" , device.address, maxcount)
for i in advertising_data.manufacturer_data:
print(advertising_data.manufacturer_data)
if device.address not in discovered:
'''
# allows wait_for_enter to run concurrently to other subroutines
asyncio.create_task(wait_for_enter())
# call bleakscanner and bleakscanner delivers the device, advertising_data into the callback function
async with BleakScanner(callback) as scanner:
...
# Important! Wait for an event to trigger stop, otherwise scanner
# will stop immediately.
await stop_event.wait()
# scanner stops when block exits
...
# writing an ending line to scanned data
f.write("[BTLECAPT]\n")
f.flush()
finally:
f.close()
asyncio.run(main())
Подробнее здесь: https://stackoverflow.com/questions/798 ... -i-dont-kn
