Sensor network system and sensor network position specifying method
First Claim
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1. A sensor network system comprising:
- a node having a display unit, a sensor for acquiring sensing data, a first controller for generating first transmission data including the sensing data and node identification (ID) information, and a first wireless processing unit for sending the first transmission data to a base station;
a locator node having a second wireless processing unit for catching the transmission data of from the node to the base station when the node exists in a detection region of the locator node and a second controller for extracting the node ID information from the transmission data and for generating second transmission data including the extracted node ID information and locator node ID information;
a base station having a node communication processing unit for receiving the first and second transmission data from the node and the locator node and for extracting the first node ID information, second node ID information and the locator node ID information and a node management unit for sending the extracted ID information to a server; and
a server having an event action control unit for receiving the ID information, a recorder unit for recording a locator node position table which causes the locator node ID information and the locator node position to correspond in relationship to each other, a database control unit for using the received ID information and the locator node position table to specify a position of the node, and a command control unit for sending information to be determined by the event action control unit based on the position of said node toward the position-specified node via the base station, wherein said position-specified node has its display unit operative to display the information determined by said event action control unit.
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Abstract
A sensor network system with its ability to specify the position of a terminal is disclosed. This system includes a locator node operative to catch a communication of a sensor node. Using this locator node, a present position of the sensor node is specified, thereby permitting services to be done based on the sensor node'"'"'s position and ID information. A node position specifying method for use in the network system is also disclosed.
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Citations
20 Claims
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1. A sensor network system comprising:
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a node having a display unit, a sensor for acquiring sensing data, a first controller for generating first transmission data including the sensing data and node identification (ID) information, and a first wireless processing unit for sending the first transmission data to a base station;
a locator node having a second wireless processing unit for catching the transmission data of from the node to the base station when the node exists in a detection region of the locator node and a second controller for extracting the node ID information from the transmission data and for generating second transmission data including the extracted node ID information and locator node ID information;
a base station having a node communication processing unit for receiving the first and second transmission data from the node and the locator node and for extracting the first node ID information, second node ID information and the locator node ID information and a node management unit for sending the extracted ID information to a server; and
a server having an event action control unit for receiving the ID information, a recorder unit for recording a locator node position table which causes the locator node ID information and the locator node position to correspond in relationship to each other, a database control unit for using the received ID information and the locator node position table to specify a position of the node, and a command control unit for sending information to be determined by the event action control unit based on the position of said node toward the position-specified node via the base station, wherein said position-specified node has its display unit operative to display the information determined by said event action control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A sensor network position specifying method comprising the steps of:
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causing a node to acquire sensing data and generate first transmission data including the sensing data and node ID information and then send the first transmission data to a base station;
causing a locator node to catch the transmission data of from the node to the base station when the node exists in a detection region of said locator node, extract node ID information from the transmission data, and generate second transmission data containing therein the extracted node ID information and locator node ID information;
causing the base station to receive the first and second transmission data from said node and said locator node, extract therefrom first node ID information and second node ID information plus the locator ID information, and send the extracted ID information to a server;
causing the server to receive the ID information, record a locator node position table which correlates the locator node ID information and a position of the locator node, specify a position of said node by use of the received ID information and the locator node position table, and send information to be determined based on the position of said node toward the node with its position specified via said base station; and
causing the position-specified node to display the information. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification