Method and apparatus for collaborative sensing based on an allowed error range of a sensor in a wireless sensor node
AssigneeSamsung Electronics Co., Ltd.
InventorsJe-Hyok Ryu, Hyo-Hyun Choi
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Abstract
A method and an apparatus for transmitting sensor data by using AER sensing and collaborative sensing in order to increase the energy efficiency in a wireless sensor network. The method includes calculating an AER for each of said at least one sensor using sensor data measured from said at least one sensor and sensor profile information corresponding to said at least one sensor, and determining sensor data to be transmitted to a higher node from among sensor data provided by the sensor module based on the AER.
Claims24
A sensor node of a wireless sensor network, the sensor node comprising:
- a sensor module including at least one sensor, the sensor module outputting sensor data measured by said at least one sensor;
- and
- an Allowed Error Range (AER) sensing block for calculating an AER for each of said at least one sensor using sensor data measured from said at least one sensor and sensor profile information corresponding to said at least one sensor, and for determining sensor data to be transmitted to a higher node from among sensor data provided by the sensor module, based on the AER.
A method of transmitting sensor data by a sensor node including a sensor module having at least one sensor and an Allowed Error Range (AER) sensing block, in a wireless sensor network, the method comprising:
- calculating, by the AER sensing block, an AER for each of said at least one sensor by using sensor data measured from said at least one sensor and sensor profile information corresponding to said at least one sensor;
- and
- determining sensor data to be transmitted to a higher node from among sensor data provided by the sensor module based on the AER.
A sensor network comprising:
- multiple child nodes, each of the multiple child nodes including at least one sensor and transmitting sensor data measured by said at least one sensor;
- and
- a parent node for receiving the sensor data transmitted from the multiple child nodes, for managing information on the multiple child nodes, for determining a child node in a collaborative active state, to which sensor data measured by a same sensor from among child nodes having the same sensor will be transmitted, for determining a child node in a collaborative sleeping state, to which the sensor data measured by the same sensor will not be transmitted, from child nodes having the same sensor by using the information on the multiple child nodes, and for controlling transmission of the sensor data measured by the same sensor to each of the determined child nodes.
A method of transmitting sensor data in a wireless sensor network including multiple child nodes and a parent node, the method comprising:
- determining, by the parent node, a child node in a collaborative active state, to which sensor data measured by a same sensor from among child nodes having a same sensor will be transmitted, and a child node in a collaborative sleeping state, to which sensor data measured by the same sensor will not be transmitted, from the child nodes having the same sensor by using information on the child nodes;
- and
- controlling transmission of sensor data measured by the same sensor to each of the child nodes having the same sensor based on the determining.
Dependencies are inferred from the claim text.