dev_data=[]
bts_config=[
	{'location':'http://smartgrid-pzero.rhcloud.com/bts_udp','range_minX':'-100', 'range_maxX':'100', 'range_minY':'-100', 'range_maxY':'100'},
	{'location':'http://smartgrid-pzero.rhcloud.com/bts_dls','range_minX':'100', 'range_maxX':'200', 'range_minY':'100', 'range_maxY':'200'}
	]