DEDICATED CHANNEL ESTABLISHMENT METHOD FOR HIGH SPEED DATA TRANSMISSION IN RAILWAY WIRELESS SENSOR NETWORK
First Claim
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1. A railway wireless sensor network system comprising:
- a plurality of sensors which are included in a railway vehicle and measure an operation state of the railway vehicle in real time;
a plurality of routers which receive information on the measured operation state through a dedicated channel with each sensor; and
a gateway which receives information on the operation state through a dedicated channel between the routers, and periodically transmits information on the received operation state to a railway vehicle control center.
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Abstract
Disclosed is a railway wireless sensor network system. The railway wireless sensor network system includes a plurality of sensors which are included in a railway vehicle and measure an operation state of the railway vehicle in real time, a plurality of routers which receive information on the measured operation state through a dedicated channel with each sensor, and a gateway which receives information on the operation state through a dedicated channel between the routers, and periodically transmits information on the received operation state to a railway vehicle control center.
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Citations
20 Claims
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1. A railway wireless sensor network system comprising:
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a plurality of sensors which are included in a railway vehicle and measure an operation state of the railway vehicle in real time; a plurality of routers which receive information on the measured operation state through a dedicated channel with each sensor; and a gateway which receives information on the operation state through a dedicated channel between the routers, and periodically transmits information on the received operation state to a railway vehicle control center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating a gateway in a railway wireless sensor network, the method comprising:
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transmitting a token issuing message to a router; receiving information on an operation state of a railway vehicle, which is measured in real time by a sensor included in the railway vehicle, from the router, through a dedicated channel which is set according to the token issuing message; and transmitting the received information on the operation state, periodically, to a railway vehicle control center. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method of operating a router in a railway wireless sensor network, the method comprising:
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receiving a token issuing message from a gateway; setting a dedicated channel with a sensor included in a railway vehicle and a dedicated channel with routers according to the token issuing message; receiving information on an operation state of the railway vehicle, which is measured by the sensor, from the sensor, through the dedicated channel with the sensor; and transmitting information on the received operation state to a gateway through the dedicated channel between the routers.
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Specification