System, Method and Apparatus for Asynchronous Communication in Wireless Sensor Networks
First Claim
1. A method for communicating within a wireless network of sensors wherein each sensor comprises a transmitter normally operating in a sleep mode, a low power receiver having a memory, a sensing module, a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module, the method comprising the steps of:
- receiving data via the low power receiver;
storing the received data in the memory; and
whenever a wakeup time occurs, putting the transmitter and the processor in an operational mode, obtaining sensory data from the sensing module, processing the sensory data, obtaining the received data from the low power receiver memory, transmitting the processed sensory data and the received data via the transmitter, and putting the transmitter and the processor in the sleep mode.
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Abstract
The present invention provides a system, method and apparatus for asynchronous communication in wireless sensor networks. Each sensor includes a transmitter normally operating in a sleep mode, a low power receiver having a memory, a sensing module, and a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module. Data is received via the low power receiver and stored in the memory. Whenever a wakeup time occurs, the transmitter and the processor are put in an operational mode, sensory data is obtained from the sensing module, the sensory data is processed, the received data is obtained from the low power receiver memory, the processed sensory data and the received data are transmitted via the transmitter, and the transmitter and the processor are put in the sleep mode.
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Citations
28 Claims
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1. A method for communicating within a wireless network of sensors wherein each sensor comprises a transmitter normally operating in a sleep mode, a low power receiver having a memory, a sensing module, a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module, the method comprising the steps of:
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receiving data via the low power receiver; storing the received data in the memory; and whenever a wakeup time occurs, putting the transmitter and the processor in an operational mode, obtaining sensory data from the sensing module, processing the sensory data, obtaining the received data from the low power receiver memory, transmitting the processed sensory data and the received data via the transmitter, and putting the transmitter and the processor in the sleep mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program embodied on a computer readable medium for communicating within a wireless network of sensors wherein each sensor comprises a transmitter normally operating in a sleep mode, a low power receiver having a memory, a sensing module, a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module, the computer program comprising:
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a code segment for receiving data via the low power receiver; a code segment for storing the received data in the memory; and a code segment for whenever a wakeup time occurs, putting the transmitter and the processor in an operational mode, obtaining sensory data from the sensing module, processing the sensory data, obtaining the received data from the low power receiver memory, transmitting the processed sensory data and the received data via the transmitter, and putting the transmitter and the processor in the sleep mode.
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13. A sensor comprising:
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a transmitter normally operating in a sleep mode; a low power receiver having a memory that receives data and stores the received data in the memory; a sensing module; a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module; and whenever a wakeup time occurs, the transmitter and the processor are put in an operational mode, sensory data is obtained from the sensing module, the sensory data is processed, the received data is obtained from the memory, the processed sensory data and the received data are transmitted via the transmitter, and the transmitter and the processor are put in the sleep mode. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A sensor network comprising:
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a sink node; two or more sensors forming a wireless communications network with the sink node; and wherein each sensor comprises a transmitter normally operating in a sleep mode, a low power receiver having a memory that receives data and stores the received data in the memory, a sensing module, a processor normally operating in a sleep mode communicably coupled to the transmitter, the low power receiver and the sensing module, and whenever a wakeup time occurs, the transmitter and the processor are put in an operational mode, sensory data is obtained from the sensing module, the sensory data is processed, the received data is obtained from the memory, the processed sensory data and the received data are transmitted via the transmitter, and the transmitter and the processor are put in the sleep mode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification