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L0C_WiFi.py
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L0C_WiFi.py
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import math
import time
import socket
cnt = 0
k1 = []
def string2float(s):
try:
return(float(s))
except:
return(s)
def convert_deg2rad(deg):
rad = (deg / 180) * math.pi
return rad
def FlushSock():
global sock
sock.setblocking(False)
while 1:
try:
PacketBytes = sock.recv(1024)
except:
break;
sock.setblocking(True)
def convert_m2lat(m):
global lat
lat_K = 40075560 #6371001 * math.cos(lat)
lat2 = m / (lat_K/360)
return lat2
def convert_lat2m(lat):
lat_K = 40075560
m = lat * (lat_K/360)
return(m)
def convert_m2lon(m):
lon = m / (30000000/360)
return(lon)
def convert_lon2m(lon):
m = (30000000/360) * lon
return(m)
#####################################
UDP_IP = "0.0.0.0"
UDP_PORT = 5005
sock = socket.socket(socket.AF_INET, # Internet
socket.SOCK_DGRAM) # UDP
sock.bind((UDP_IP, UDP_PORT))
###################################
i = 0
x1 = []
m1 = []
y1 = []
exit = False
min_pwr = input('minimum rxpower if the antenna is pointed at the router: ')
min_pwr = float(min_pwr)
while(True):
f = open("./tmp/csv-01.csv")
# pwr = f.readline().split(",")
# pwr = f.readline().split(",")
pwr = f.readline().split(",")[4].strip()
pwr = float(pwr)
FlushSock()
while(not exit):
try:
data, addr = sock.recvfrom(1024)
data = str(data)
x = data.split(",")[28].strip()
y = data.split(",")[29].strip()
lat = data.split(",")[2].strip()
lat = float(lat)
lon = data.split(",")[3].strip()
lon = float(lon)
h = data.split(",")[4].strip()
print(x, y, lat, lon, h)
exit = True
break
except(IndexError):
pass
data1, addr = sock.recvfrom(1024)
data1 = str(data1)
if(data1 != data and len(data1) == 247):
data = data1
x = data.split(",")[28].strip()
y = data.split(",")[29].strip()
lat = data.split(",")[2].strip()
lat = float(lat)
lon = data.split(",")[3].strip()
lon = float(lon)
h = data.split(",")[4].strip()
if(len(data) != 67):
hdg = convert_deg2rad(float(x))
vert_deg = convert_deg2rad(float(y))
print(x, y, lat, lon, h)
gps = 1
if(data1 != data and len(data1) != 247):
data = data1
data = data.split(",")
x = data[len(data)-3]
y = data[len(data)-2]
if(len(data) != 67):
hdg = convert_deg2rad(float(x))
vert_deg = convert_deg2rad(float(y))
gps = 0
if(gps == 1 or i == 0 and pwr >= min_pwr):
if(len(data) != 67):
hdg = convert_deg2rad(float(x))
vert_deg = convert_deg2rad(float(y))
r = 1
a = float(h) * math.sin(vert_deg)
Bdifflatm = a * math.sin(hdg)
Bdifflonm = a * math.cos(hdg)
difflat = convert_m2lat(Bdifflatm)
difflon = convert_m2lon(Bdifflonm)
B0lat = float(lat) + float(difflat)
B0lon = float(lon) + float(difflon)
avglat = 0
avglon = 0
x1.append((B0lat - lat))
y1.append((B0lon - lon))
if((lat - B0lat) != 0):
m1.append((lon - B0lon) / (lat - B0lat))
#print("#########")
#print(str(len(y1))+" "+str(len(x1))+" "+str(len(m1))+" "+str(len(k1))+" "+str(i))
#print("#########")
k1.append(y1[i] - (x1[i] - m1[i]))
if(i>=2 and (x1[i]*m1[i] + k1[i]) - (x1[i-1]*m1[i-1] + k1[i-1]) < r and pwr >= min_pwr):
avglon = convert_m2lon(y1[i]) + lon
avglat = convert_m2lat(x1[i]) + lat
a_ = (avglat - a)**2 + (avglon - a)**2
b = 180 - 90 - vert_deg
rh = a_ * math.tan(b)
print("###############################")
print("router_avg_pos: "+str(avglat)+" "+str(avglon)+" "+str(rh))
print("###############################")
print("###############################")
#print("Routerlat/Blon:")
#print(str(B0lat)+" "+str(B0lon))
#print(" ")
print("lat/lon")
print(str(lat)+" "+str(lon))
print(" ")
print("ALT:")
print(str(h))
print(" ")
print("vert_deg:")
print(str(vert_deg))
print("hdg:")
print(str(x))
print(str(hdg))
print("src_ADDR:", addr)
if cnt == 0:
addr1 = addr
cnt = cnt +1
print("len_data:"+str(len(data)))
#print("A: ", a)
print("PWR: "+str(pwr))
if addr != addr1:
break
print("###############################")
#print(data)
i = i + 1
time.sleep(1)
gps = 0