ASYNCHRONOUS MAC PROTOCOL BASED SENSOR NODE AND DATA TRANSMITTING AND RECEIVING METHOD THROUGH THE SAME
First Claim
1. A method of transmitting data in a sensor node for constituting a sensor network, the method comprising:
- transmitting a Wake-Up frame to at least one receiving node which is in an inactive state, thereby activating the receiving node; and
transmitting data to the activated receiving node.
1 Assignment
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Accused Products
Abstract
Disclosed is an asynchronous MAC based sensor node using a Wake-Up RF. The sensor node includes a main transceiver to transmit/receive data, a Wake-Up transceiver to transit a state of the sensor node; and a micro-control unit, which transmits a Wake-Up frame to at least one receiving node through the Wake-Up transceiver such that the receiving node is activated from an inactive state into an active state and transmits data to the activated receiving node through the main transceiver. The asynchronous MAC based sensor node reduces unnecessary power consumption, hop-by-hop delay, and overhead required for timing synchronization, thereby implementing an effective sensor
29 Citations
20 Claims
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1. A method of transmitting data in a sensor node for constituting a sensor network, the method comprising:
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transmitting a Wake-Up frame to at least one receiving node which is in an inactive state, thereby activating the receiving node; and transmitting data to the activated receiving node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of receiving data transmitted from a sending node in a sensor node is constituting a sensor network, the method comprising:
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transiting from an inactive state to an active state by receiving a Wake-Up frame transmitted from the sending node; transmitting a response packet in response to the Wake-Up frame to the sending node after the transition into the active state; and receiving data from the sending node which has received the response packet. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A sensor node comprising:
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a main transceiver to transmit/receive data; a Wake-Up transceiver to transit a state of the sensor node; and a micro-control unit, which transmits a Wake-Up frame to at least one receiving node through the Wake-Up transceiver such that the receiving node is activated from an inactive state into an active state, and transmits data to the activated receiving node through the main transceiver. - View Dependent Claims (18, 19, 20)
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Specification