To provide an actor node capable of responding to an event and collecting data upon occurrence of an event, and to provide a sensor node, a method for changing a coverage block, a parameter change method, a program, and an information processing system.
The actor node according to this invention includes a dynamic change portion. The dynamic change portion changes temporarily a block which obtains data from a sensor node, and temporarily causes another actor node to obtain, on behalf of the actor node, data from the sensor node arranged in a partial region of at least a portion of the coverage blocks. The dynamic change unit obtains identification information unique to the another actor node from the another actor node. The dynamic change unit notifies, to the sensor node arranged in the partial region, the obtained identification information. The dynamic change unit notifies, to the another actor node, a portion of the hash chain and a temporary key generated using the obtained identification information and the key used for communication with the sensor node arranged in the partial region.
KUSAKAWA MASAFUMI
SAI SHIGENARI
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto