SYSTEM AND METHOD FOR INTERFERENCE MITIGATION IN A WIRELESS SENSOR NETWORK
First Claim
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1. A wireless patient monitoring system comprising:
- a plurality of sensor nodes configured to acquire patient data from a patient;
a gateway device in bi-directional wireless communication with the plurality of sensor nodes for a plurality of defined communication frames, the gateway device configured to transmit a beacon message to each of the plurality of sensor nodes at each of a plurality of frequencies; and
wherein each of the plurality of sensor nodes are further configured to;
receive the beacon message from the gateway device; and
transmit the acquired patient data to the gateway device at each of the plurality of frequencies.
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Abstract
A wireless patient monitoring system forms a Network Around a Patient (NAP) and includes sensor nodes configured to acquire patient data from a patient. A gateway device is in bi-directional wireless communication with the sensor nodes for a plurality of defined communication frames. The gateway device is configured to transmit a beacon message to the sensor nodes at each of a plurality of frequencies. The sensor nodes are further configured to receive the beacon message from the gateway device and transmit the acquired patient data to the gateway device at each of the plurality of frequencies.
90 Citations
25 Claims
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1. A wireless patient monitoring system comprising:
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a plurality of sensor nodes configured to acquire patient data from a patient; a gateway device in bi-directional wireless communication with the plurality of sensor nodes for a plurality of defined communication frames, the gateway device configured to transmit a beacon message to each of the plurality of sensor nodes at each of a plurality of frequencies; and wherein each of the plurality of sensor nodes are further configured to; receive the beacon message from the gateway device; and transmit the acquired patient data to the gateway device at each of the plurality of frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for patient monitoring comprising the steps of:
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arranging a plurality of wireless sensors on a patient to acquire health data therefrom during an operative frame; associating the plurality of wireless sensors with a gateway controller by assigning each of the plurality of wireless sensors to a timeslot within the operative frame; transmitting a beacon signal from the gateway controller to the plurality of wireless sensors to activate the wireless sensors during an operative frame; transmitting the health data from the plurality of wireless sensors to the gateway controller via a plurality of data packets during the operative frame in response to the beacon signal; and wherein at least one of the beacon signal and the data packets are transmitted over a first frequency channel and a second frequency channel during the operative frame. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A wireless sensor communications system comprising:
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a wireless sensor network configured to acquire system data from a monitored system; a controller positioned in proximity to the sensor network and in wireless communication therewith; and wherein each of the sensor network and the controller are configured to sequentially transmit and receive wireless signals over a first frequency channel (F1) and over a second frequency channel (F2) and switch between the first frequency channel and the second frequency channel at least once during each of a plurality of communication frames, the wireless signals including an activation signal and system data. - View Dependent Claims (22, 23, 24, 25)
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Specification