def testLoc(wlanfake=0, gpsfake=False, verbose=False):
# Get WLAN scanning results.
len_visAPs, wifis = getWLAN(wlanfake)
# Fix current position.
fixloc = fixPos(len_visAPs, wifis, verbose)
#fixloc = [ 39.922848,116.472895 ]
print 'fixed location: \n%s' % fixloc
# Get GPS referenced Position.
if not gpsfake: refloc = getGPS()
else: refloc = [39.922648, 116.472895]
print 'referenced location: \n%s' % refloc
# Log the fixed and referenced positioning record.
# Logging format: [ timestamp, MAC1|MAC2..., fLat, fLon, rLat, rLon ].
timestamp = time.strftime('%Y-%m%d-%H%M')
visMACs = '|'.join(wifis[0])
#error = dist_unit(fixloc[0], fixloc[1], refloc[0], refloc[1])*RADIUS
locline = [timestamp, visMACs, fixloc[0], fixloc[1], refloc[0], refloc[1]]
print 'locline:\n%s' % locline
date = time.strftime('%Y-%m%d')
locfilename = LOCPATH + date + LOCSUFFIX
dumpCSV(locfilename, locline)
def testLoc(wlanfake=0, gpsfake=False, verbose=False):
# Get WLAN scanning results.
len_visAPs, wifis = getWLAN(wlanfake)
# Fix current position.
fixloc = fixPos(len_visAPs, wifis, verbose)
#fixloc = [ 39.922848,116.472895 ]
print 'fixed location: \n%s' % fixloc
# Get GPS referenced Position.
if not gpsfake: refloc = getGPS()
else: refloc = [ 39.922648,116.472895 ]
print 'referenced location: \n%s' % refloc
# Log the fixed and referenced positioning record.
# Logging format: [ timestamp, MAC1|MAC2..., fLat, fLon, rLat, rLon ].
timestamp = time.strftime('%Y-%m%d-%H%M')
visMACs = '|'.join(wifis[0])
#error = dist_unit(fixloc[0], fixloc[1], refloc[0], refloc[1])*RADIUS
locline = [ timestamp, visMACs, fixloc[0], fixloc[1], refloc[0], refloc[1] ]
print 'locline:\n%s' % locline
date = time.strftime('%Y-%m%d')
locfilename = LOCPATH + date + LOCSUFFIX
dumpCSV(locfilename, locline)
def collectData(req=None, reqfmt=None, ret=None, retfmt=None, algos=None):
"""
req: 16/14 col raw data.
ret: macs, rsss, cpp(lat,lon,err).
algos: tuple of used algos, e.g. ('cpp', 'py', 'google').
"""
sys.stdout.write('Slicing & Merging test data ... ')
macrss = np.char.array(
req[:, [reqfmt['idx_macs'], reqfmt['idx_rsss']]]).split('|')
reqcols = [reqfmt['idx_lat'], reqfmt['idx_lon']]
# complete *addcols* column definition:
# err_cpp, ee_cpp, py(lat,lon,err,ep,ee), ep_cpp_py, ee_cpp_py, google(lat,lon,err,ep,ee).
addcols = []
idiffs = []
atoken = None
istats = []
ipylocoks = []
isErrinRange = {
'cpp': {
'all': 0,
'errless200': 0
},
'py': {
'all': 0,
'errless200': 0
},
'google': {
'all': 0,
'errless200': 0
}
}
usecpp = False
usepy = False
usegoogle = False
idx_cur = 0
if 'cpp' in algos:
usecpp = True
istats_cpp = offsets_stats['cpp']
istats.extend(
istats_cpp) # offset of istats item in cpp section of addcols.
idx_cur += idxscnt_addcols['cpp'][1]
retcols = [retfmt['ilat_cpp'], retfmt['ilon_cpp'], retfmt['ierr_cpp']]
if 'py' in algos:
usepy = True
istats_py = (idx_cur + np.array(offsets_stats['py'])).tolist()
istats.extend(
istats_py) # offset of istats item in cpp section of addcols.
if usecpp:
idx_cur = idx_cur + idxscnt_addcols['py'][1] + idxscnt_addcols[
'cpp_py'][1]
# reqret format: ref(lat,lon), cpp(lat,lon,err)
reqret = np.append(req[:, reqcols], ret[:, retcols],
axis=1).astype(float)
else:
idx_cur += idxscnt_addcols['py'][1]
reqret = req[:, reqcols].astype(float)
if 'google' in algos:
usegoogle = True
istats_google = (idx_cur + np.array(offsets_stats['google'])).tolist()
istats.extend(
istats_google) # offset of istats item in cpp section of addcols.
print 'Done'
print 'istats: %s' % istats
for icase in xrange(len(reqret)):
macs = np.array(macrss[icase, 0])
rsss = np.array(macrss[icase, 1])
latref = reqret[icase, 0]
lonref = reqret[icase, 1]
addcol = []
if usecpp:
latcpp = reqret[icase, 2]
loncpp = reqret[icase, 3]
cpperr = reqret[icase, 4]
# cpploc error to refloc.
err_cpp = geo.dist_km(loncpp, latcpp, lonref, latref) * 1000
addcol.append(err_cpp)
# cpp error estimation error.
ee = cpperr - err_cpp
if ee >= 0:
isErrinRange['cpp']['all'] += 1
if err_cpp <= 200:
isErrinRange['cpp']['errless200'] += 1
ee_cpp = abs(ee) / cpperr
addcol.append(ee_cpp)
if usepy:
# pyloc result.
num_visAPs = len(macs)
INTERSET = min(cfg.CLUSTERKEYSIZE, num_visAPs)
idxs_max = np.argsort(rsss)[:INTERSET]
mr = np.vstack((macs, rsss))[:, idxs_max]
pyloc = wlanpos.fixPos(INTERSET, mr, verb=False)
if not pyloc: continue
ipylocoks.append(icase)
addcol.extend(pyloc)
# pyloc error to refloc.
err_py = geo.dist_km(pyloc[1], pyloc[0], lonref, latref) * 1000
addcol.append(err_py)
# py error estimation error.
ee = pyloc[2] - err_py
if ee >= 0:
isErrinRange['py']['all'] += 1
if err_py <= 200:
isErrinRange['py']['errless200'] += 1
ee_py = abs(ee) / pyloc[2]
addcol.append(ee_py)
if usecpp:
# pyloc error to cpploc.
err_cpp_py = geo.dist_km(pyloc[1], pyloc[0], loncpp,
latcpp) * 1000
addcol.append(err_cpp_py)
# error between cpploc error & pyloc error.
ee_cpp_py = abs(err_cpp - err_py)
addcol.append(ee_cpp_py)
if err_cpp_py or ee_cpp_py: idiffs.append(icase)
if usegoogle:
# google location api results.
mr = mr.tolist()
# Old interface of makeReq.
#gloc_req = gl.makeReq(wlans=mr, atoken=atoken)
wlans = []
for iwlan, mac in enumerate(mr[0]):
wlan = {}
wlan['mac_address'] = mac
wlan['signal_strength'] = mr[1][iwlan]
wlans.append(wlan)
gloc_req = gl.makeReq(wlans=wlans, atoken=atoken)
gloc_ret = gl.getGL(gloc_req)
gloc_pos = gloc_ret['location']
if (not atoken) and ('access_token' in gloc_ret):
atoken = gloc_ret['access_token']
addcol.extend(gloc_pos.values())
# google loc error to refloc.
err_google = geo.dist_km(gloc_pos['longitude'],
gloc_pos['latitude'], lonref,
latref) * 1000
addcol.append(err_google)
# google loc error estimation error.
ee = gloc_pos['accuracy'] - err_google
if ee >= 0:
isErrinRange['google']['all'] += 1
if err_google <= 200:
isErrinRange['google']['errless200'] += 1
ee_google = abs(ee) / gloc_pos['accuracy']
addcol.append(ee_google)
print '%d: %s' % (icase + 1, addcol)
addcols.append(addcol)
print
return (addcols, isErrinRange, reqret, ipylocoks, istats, idiffs)
def collectData(req=None, reqfmt=None, ret=None, retfmt=None, algos=None):
"""
req: 16/14 col raw data.
ret: macs, rsss, cpp(lat,lon,err).
algos: tuple of used algos, e.g. ('cpp', 'py', 'google').
"""
sys.stdout.write('Slicing & Merging test data ... ')
macrss = np.char.array(req[ :, [reqfmt['idx_macs'],reqfmt['idx_rsss']] ]).split('|')
reqcols = [ reqfmt['idx_lat'], reqfmt['idx_lon'] ]
# complete *addcols* column definition:
# err_cpp, ee_cpp, py(lat,lon,err,ep,ee), ep_cpp_py, ee_cpp_py, google(lat,lon,err,ep,ee).
addcols = []; idiffs = []; atoken = None; istats = []; ipylocoks = []
isErrinRange={'cpp': {'all':0, 'errless200':0},
'py': {'all':0, 'errless200':0},
'google': {'all':0, 'errless200':0} }
usecpp = False; usepy = False; usegoogle = False
idx_cur = 0
if 'cpp' in algos:
usecpp = True
istats_cpp = offsets_stats['cpp']
istats.extend(istats_cpp) # offset of istats item in cpp section of addcols.
idx_cur += idxscnt_addcols['cpp'][1]
retcols = [ retfmt['ilat_cpp'], retfmt['ilon_cpp'], retfmt['ierr_cpp'] ]
if 'py' in algos:
usepy = True
istats_py = (idx_cur + np.array(offsets_stats['py'])).tolist()
istats.extend(istats_py) # offset of istats item in cpp section of addcols.
if usecpp:
idx_cur = idx_cur + idxscnt_addcols['py'][1] + idxscnt_addcols['cpp_py'][1]
# reqret format: ref(lat,lon), cpp(lat,lon,err)
reqret = np.append(req[:,reqcols], ret[:,retcols], axis=1).astype(float)
else:
idx_cur += idxscnt_addcols['py'][1]
reqret = req[:,reqcols].astype(float)
if 'google' in algos:
usegoogle = True
istats_google = (idx_cur + np.array(offsets_stats['google'])).tolist()
istats.extend(istats_google) # offset of istats item in cpp section of addcols.
print 'Done'
print 'istats: %s' % istats
for icase in xrange(len(reqret)):
macs = np.array(macrss[icase,0])
rsss = np.array(macrss[icase,1])
latref = reqret[icase,0]; lonref = reqret[icase,1]
addcol = []
if usecpp:
latcpp = reqret[icase,2]; loncpp = reqret[icase,3]; cpperr = reqret[icase,4]
# cpploc error to refloc.
err_cpp = geo.dist_km(loncpp, latcpp, lonref, latref)*1000
addcol.append(err_cpp)
# cpp error estimation error.
ee = cpperr - err_cpp
if ee >= 0:
isErrinRange['cpp']['all'] += 1
if err_cpp <= 200:
isErrinRange['cpp']['errless200'] += 1
ee_cpp = abs(ee)/cpperr
addcol.append(ee_cpp)
if usepy:
# pyloc result.
num_visAPs = len(macs)
INTERSET = min(cfg.CLUSTERKEYSIZE, num_visAPs)
idxs_max = np.argsort(rsss)[:INTERSET]
mr = np.vstack((macs, rsss))[:,idxs_max]
pyloc = wlanpos.fixPos(INTERSET, mr, verb=False)
if not pyloc: continue
ipylocoks.append(icase)
addcol.extend(pyloc)
# pyloc error to refloc.
err_py = geo.dist_km(pyloc[1], pyloc[0], lonref, latref)*1000
addcol.append(err_py)
# py error estimation error.
ee = pyloc[2] - err_py
if ee >= 0:
isErrinRange['py']['all'] += 1
if err_py <= 200:
isErrinRange['py']['errless200'] += 1
ee_py = abs(ee)/pyloc[2]
addcol.append(ee_py)
if usecpp:
# pyloc error to cpploc.
err_cpp_py = geo.dist_km(pyloc[1], pyloc[0], loncpp, latcpp)*1000
addcol.append(err_cpp_py)
# error between cpploc error & pyloc error.
ee_cpp_py = abs(err_cpp - err_py)
addcol.append(ee_cpp_py)
if err_cpp_py or ee_cpp_py: idiffs.append(icase)
if usegoogle:
# google location api results.
mr = mr.tolist()
# Old interface of makeReq.
#gloc_req = gl.makeReq(wlans=mr, atoken=atoken)
wlans = []
for iwlan,mac in enumerate(mr[0]):
wlan = {}
wlan['mac_address'] = mac
wlan['signal_strength'] = mr[1][iwlan]
wlans.append(wlan)
gloc_req = gl.makeReq(wlans=wlans, atoken=atoken)
gloc_ret = gl.getGL(gloc_req)
gloc_pos = gloc_ret['location']
if (not atoken) and ('access_token' in gloc_ret):
atoken = gloc_ret['access_token']
addcol.extend( gloc_pos.values() )
# google loc error to refloc.
err_google = geo.dist_km(gloc_pos['longitude'], gloc_pos['latitude'], lonref, latref)*1000
addcol.append(err_google)
# google loc error estimation error.
ee = gloc_pos['accuracy'] - err_google
if ee >= 0:
isErrinRange['google']['all'] += 1
if err_google <= 200:
isErrinRange['google']['errless200'] += 1
ee_google = abs(ee)/gloc_pos['accuracy']
addcol.append(ee_google)
print '%d: %s' % (icase+1, addcol)
addcols.append(addcol)
print
return (addcols, isErrinRange, reqret, ipylocoks, istats, idiffs)