Multi-radio interfacing and direct memory access based data transferring methods and sink node for performing the same in wireless sensor network
AssigneeElectronics and Telecommunications Research Institute
InventorsByeong Cheol CHOI, In Hwan Lee, Byung Bog Lee, Myung Nam Bae, Nae Soo Kim
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Abstract
Provided are a method of mediating a plurality of radio frequency (RF) transceivers, which is performed in a sink node in order to perform multi-radio interfacing between the sink node and a plurality of sensor nodes in a wireless sensor network (WSN), and a direct memory access (DMA) based data transfer method.
Claims19
A direct memory access (DMA) based data transmitting and receiving apparatus of a sink node, the apparatus comprising:
- a serial peripheral interface (SPI) bus controller controlling receiving, through a plurality of transceivers, data from each of a plurality of sub networks included in a sensor network;
- and
- a DMA controller storing the received data and scheduling the stored data to a microcontroller according to a determined order.
A direct memory access (DMA) based data transmitting and receiving apparatus of a sink node, the apparatus comprising:
- a DMA controller storing data received from a microcontroller and scheduling the stored data to a plurality of transceivers that communicate with a sensor network that is divided into a plurality of sub networks;
- and
- an serial peripheral interface (SPI) bus controller controlling the scheduled data to be transmitted to one of the plurality of transceivers.
A direct memory access (DMA) based data transmitting and receiving apparatus of a sink node, the sink node comprising:
- a receiving unit storing data received, through a plurality of transceivers, from each of a plurality of sub networks of a sensor network and scheduling the data to a microcontroller;
- and
- a transmitting unit storing data received from the microcontroller and scheduling the data to a corresponding transceiver of the plurality of transceivers.
A direct memory access (DMA) based data transmitting and receiving apparatus of a sink node, the apparatus comprising:
- an serial peripheral interface (SPI) bus controller interfaced with a plurality of transceivers communicating, via an SPI bus, with a plurality of sub networks included in a sensor network including a plurality of sensor nodes and controlling transmitting and receiving of data through the plurality of transceivers according to a bus control signal;
- and
- a DMA controller storing data received from the plurality of sub networks, scheduling the stored data to a microcontroller, storing data received from the microcontroller, and scheduling the stored data to the plurality of transceivers.
A direct memory access (DMA) based data transferring method performed by a sink node, the method comprising:
- receiving, through a plurality of transceivers, data from each of a plurality of sub networks include in a sensor network;
- and
- storing the received data and scheduling the stored data to a microcontroller according to a determined order.
A direct memory access (DMA) based data transferring method performed by a sink node, the method comprising:
- storing data received from a microcontroller and scheduling the stored data to a plurality of transceivers that communicate with a sensor network that is divided into a plurality of sub networks;
- and
- controlling the scheduled data to be transmitted to one of the plurality of transceivers.
Dependencies are inferred from the claim text.