Access Authorization Method And Apparatus For A Wireless Sensor Network

An access authorization method for wireless sensor network, said method comprising:

• obtaining an access authorization of a user through at least a base station;
• selecting at least a controlling node from a plurality of sensor nodes in a wireless sensor network, and selecting at least an intermediate routing node from said at least a base station to a target sensor node;
• issuing a request message to said target sensor node through said at least a base station, said request at least having authentication information;
• based on said request, said target sensor node requesting said selected at least a controlling node for returning sensing data, and referring to said returned sensing data to determine whether meeting said access authorization of said user, and issuing a corresponding reply message;
• based on said authentication information, said at least an intermediate routing node checking said reply message to determine whether to discard or to transfer said reply message;
• and
• authenticating said transferred reply message through said at least a base station.