Sensor net system and sensor node
First Claim
1. A Sensor Net System comprising an intermediate device joined with a sensor node and a server joined with said intermediate device, said server comprising:
- a record unit for recording the relationship of joining between said nodes to be joined and the network to which said intermediate device belongs;
a display unit for displaying said relationship of joining;
an input unit for accepting changes in said relationship of joining;
a command issue unit for issuing a rejoining command based on said judgment; and
a transmission and reception unit for transmitting said issued commands to the intermediate device joined with said a sensor node,wherein upon receiving said command, said sensor node shuts down the joining with said intermediate device, searches the network specified in said command and joins with the intermediate device belonging to the network searched.
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Accused Products
Abstract
In order to realize the joining with the legitimate devices for joining with a limited number of operations for terminal devices for which small dimension and low power consumption are required, in the radio communication system according to the present invention, a ReJoin Command for instructing the sensor node to join with other PANs is provided, and by the use of this command, it is possible to change the joining of the sensor node joined with an unintended PAN to another intended PAN. In addition, for joining with the PAN to which it is joined is disjoined, repeated attempts are to be made to join with the PAN.
55 Citations
11 Claims
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1. A Sensor Net System comprising an intermediate device joined with a sensor node and a server joined with said intermediate device, said server comprising:
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a record unit for recording the relationship of joining between said nodes to be joined and the network to which said intermediate device belongs; a display unit for displaying said relationship of joining; an input unit for accepting changes in said relationship of joining; a command issue unit for issuing a rejoining command based on said judgment; and a transmission and reception unit for transmitting said issued commands to the intermediate device joined with said a sensor node, wherein upon receiving said command, said sensor node shuts down the joining with said intermediate device, searches the network specified in said command and joins with the intermediate device belonging to the network searched. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sensor node joined with intermediate devices in a Sensor Net System including a server and a plurality of intermediate devices managed by said server, said sensor node comprising:
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a communication unit for communicating by radio with said intermediate devices; a display unit; an input instruction unit; and a control unit for controlling said different units, wherein said sensor node searches networks through said communication unit,displays the retrieved networks in said display unit, and joins with the intermediate devices belonging to the chosen network through said input instruction unit, and wherein, upon receipt of the ReJoin Command issued by said server between the network and said sensor node through said communication unit, said control unit shuts down the joining with said intermediate devices, searches the intermediate devices belonging to the network designated in the command and joins with the retrieved intermediate devices. - View Dependent Claims (11)
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Specification