DATA TRANSFER CONTROL METHOD, RELAY DEVICE, AND DATA TRANSFER CONTROL DEVICE

• US 20140289373A1
• Filed: 03/20/2014
• Published: 09/25/2014
• Est. Priority Date: 03/21/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: KUBOTA, MAKOTO
• Granted Patent: US 10,171,347 B2
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: H04B 17/27 for locating or positioning the transmitter
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04W 40/24 Connectivity information management, e.g. connectivity discovery or connectivity update

Abstract

A transfer path between a sensor and a data processing server is partitioned into at least a first transfer path between the sensor and a first relay device, a second transfer path from the first relay device to a second relay device that transfers the data transmitted from the first sensor, and a third transfer path between the second relay device and the data processing server. A data transfer between each of the sensors and the data processing server is implemented by respectively controlling a pair of the first transfer path and the second transfer path, and a pair of the second transfer path and the third transfer path.

Claims

1. A data transfer control method in a system where a plurality of relay devices that relay a data transfer are arranged between a plurality of sensors and one or more data processing servers, the method comprising:

partitioning, by a processor, a transfer path between a first sensor and a first data processing server into at least a first transfer path, which is a transfer path between the first sensor and a first relay device that initially receives data transmitted from the first sensor, a second transfer path, which is a transfer path from the first relay device to a second relay device that transfers the data transmitted from the first sensor to the first data processing server, and a third transfer path, which is a transfer path between the second relay device and the first data processing server; and

implementing, by the processor, a data transfer between each of the sensors and the data processing server by respectively controlling a pair of the first transfer path and the second transfer path, and a pair of the second transfer path and the third transfer path.

2. The data transfer control method according to claim 1, wherein

when a transfer path for performing the data transfer from the sensor to the data processing server is assumed as the transfer path, the second transfer path is managed, by the processor, for each of a plurality of third relay devices in a case where the plurality of third relay devices connected to one or more data processing servers are present.

3. A relay device including a processor, the processor comprising:

receiving transferred data;

extracting first data from the received data;

extracting second data different from the first data from the received data;

deciding a transfer destination of the received data based on the first data;

deciding a transfer destination of the received data based on the second data;

validating one of the decision made based on the first data and the decision made based on the second data; and

transmitting the received data to the transfer destination the decision of which is validated.

4. The relay device according to claim 3, wherein

the second data is identified by using the first data, and added to data to be transmitted.

5. The relay device according to claim 3, further comprising

a storage device configured to store transfer management information indicating whether the second data is valid, wherein

when data to which the second data that is not validated in the transfer management information stored in the storage device is added is received, the processor validates the decision made based on the first data.

6. A data transfer control device including a processor, the processor comprising:

setting a first transfer path for transferring data to be transferred based on first data within the data to be transferred on a transfer path between a sensor and a data processing server;

selecting a first relay device that transfers the data based on the first data within the data from among relay devices present in the first transfer path for each first transfer path;

selecting a second relay device that decides a transfer destination of the data based on second data that is extracted from the data and different from the first data from among the relay devices present in the first transfer path for each first transfer path;

selecting a third relay device that extracts the second data from the data and adds, to the data, the first data made to correspond to the extracted second data from among the relay devices present in the first transfer path for each first transfer path;

making a first setting for transferring the data based on the first data in the first relay device;

making a second setting for deciding the transfer destination of the data based on the second data in the second relay device; and

making a third setting for adding, to the data, the first data made to correspond to the second data in the third relay device.

7. The data transfer control device according to claim 6, wherein

the first transfer paths are collectively managed based on a relay device positioned last in the first transfer path, and

a management result of the first transfer paths is reflected on the first, the second, and the third settings.