router
username = root password = admin
web root = /mnt/data/www mysql -u root -p mysql
http://192.168.1.1:81/dbtest.php
http://192.168.1.1:81/queryService.php?package=sensory&function=gps&maxDeviceNum=1 json: ip, cost, qos;
http://192.168.1.1:81/reg.php?type=device&&device_id=192.168.1.212
http://192.168.1.1:81/reg.php?type=service&&service_name=sensory_gps&cost=10&qos=3
wget speed.cs.vt.edu/filename