Application US20190281447

DISTRIBUTED DATA PROCESSING SYSTEM, CENTER SERVER, EDGE SERVER, MOBILE TERMINAL, AND METHOD
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US20190281447

1. A distributed data processing system comprising a center server, a plurality of edge servers, and a mobile terminal, and collecting, in the center server, data acquired by the mobile terminal, wherein (4) (5)

the center server is adapted to distribute an information request describing an attribute of at least one piece of necessary data to the mobile terminal via an edge server,

the mobile terminal is adapted to transmit requested data, which is requested in the information request, to the edge server,

the edge server is adapted to notify the center server to the effect that the requested data has been acquired,

the center server is adapted to distribute, with respect to data acquired by the edge server from the mobile terminal, non-necessity information indicating that collection of the data is unnecessary to the edge server and to the mobile terminal via the edge server, and

the mobile terminal is adapted to, when the mobile terminal receives the non-necessity information, suspend acquisition of unnecessary data, of which collection is deemed unnecessary in the non-necessity information, and to discard the data if the data is stored in the mobile terminal.

2. The distributed data processing system according to claim 1, wherein after the edge server acquires and integrates a prescribed number of pieces of data having an attribute deemed necessary in the information request, the edge server notifies the center server to the effect that the requested data has been acquired. (1) (0)

3. The distributed data processing system according to claim 1, wherein after the mobile terminal acquires and integrates a prescribed number of pieces of data having an attribute deemed necessary in the information request, the mobile terminal transmits the integrated data to the edge server. (0)

5. The distributed data processing system according to claim 1, wherein the mobile terminal is adapted to: (0) (3)

determine, in accordance with a prescribed criterion, which mobile terminals, from among the mobile terminal and other mobile terminals, are on the upstream side and on the downstream side respectively,

distribute, to the other mobile terminal on the downstream side, the information request and the non-necessity information distributed from the edge server or the other mobile terminal on the upstream side, and

when the information request is acquired from the other mobile terminal on the upstream side, transmit the requested data to the edge server or the other mobile terminal on the upstream side, and when the non-necessity information is acquired, discard the unnecessary data if the data is stored.

6. The distributed data processing system according to claim 1, (0) (2)

7. A center server collecting data from a mobile terminal via a plurality of edge servers, the center server comprising: (0) (3)

an information request distributing unit adapted to distribute an information request describing an attribute of at least one piece of necessary data to the mobile terminal via the edge server;

a receiving unit adapted to receive, from the edge server, a notification to the effect that the edge server possesses requested data, which is requested in the information request; and

a non-necessity information distributing unit adapted to distribute, in response to the reception of the notification to the effect that the edge server possesses the requested data, non-necessity information indicating that collection of the requested data is unnecessary to the edge server and to the mobile terminal via the edge server.

8. An edge server collecting data from a mobile terminal in accordance with an information request from a center server, the edge server comprising: (0) (6)

an information request receiving unit adapted to receive an information request describing an attribute of at least one piece of necessary data from the center server;

an information request transmitting unit adapted to transmit the information request to the mobile terminal;

an information receiving unit adapted to receive requested data, which is requested in the information request from the mobile terminal;

a possession notification transmitting unit adapted to notify the center server to the effect that the requested data has been acquired;

a non-necessity information receiving unit adapted to receive non-necessity information indicating that collection of the requested data is unnecessary from the center server; and

a non-necessity information transmitting unit adapted to transmit the non-necessity information to the mobile terminal.

9. A mobile terminal, comprising: (0) (5)

an information request receiving unit adapted to receive an information request describing an attribute of at least one piece of necessary data from an edge server;

a data acquiring unit adapted to acquire requested data, which is requested in the information request;

an information transmitting unit adapted to transmit the requested data to the edge server; and

a non-necessity information receiving unit adapted to receive non-necessity information indicating that collection of the requested data from a center server,

wherein when the non-necessity information is received, acquisition of the unnecessary data, of which collection is deemed unnecessary in the non-necessity information, is suspended, and the data is discarded if the data is stored.

10. A data collection method in a distributed data processing system including a center server, a plurality of edge servers, and a mobile terminal and collecting, in the center server, data acquired by the mobile terminal, the method comprising: (4) (5)

distributing, by the center server, an information request describing an attribute of at least one piece of necessary data to the mobile terminal via an edge server;

transmitting, by the mobile terminal, requested data which is requested in the information request to the edge server;

notifying, by the edge server, the center server to the effect that the requested data has been acquired;

distributing, by the center server, with respect to the data acquired by the edge server from the mobile terminal, non-necessity information indicating that collection of the data is unnecessary to the edge server and to the mobile terminal via the edge server; and

in response to receiving the non-necessity information, suspending, by the mobile terminal, acquisition of unnecessary data, of which collection is deemed unnecessary in the non-necessity information, and discard the data if the data is stored.

11. The data collection method according to claim 10, wherein, in the step of notifying, the edge server notifies the center server to the effect that the requested data has been acquired after the edge server acquires and integrates a prescribed number of pieces of data having an attribute deemed necessary in the information request. (1) (0)

12. The data collection method according to claim 10, wherein the step of transmitting the requested data includes acquiring and integrating a prescribed number of pieces of data having an attribute deemed necessary in the information request, and transmitting the integrated data to the edge server. (0)

14. The data collection method according to claim 10, further comprising: (0) (3)

determining, by the mobile terminal, in accordance with a prescribed criterion, which mobile terminals, from among the mobile terminal and other mobile terminals, are on the upstream side and on the downstream side respectively;

distributing, by the mobile terminal, to the other mobile terminal on the downstream side, the information request and the non-necessity information distributed from the edge server or the other mobile terminal on the upstream side; and

transmitting, by the mobile terminal, when the information request is acquired from the other mobile terminal on the upstream side, requested data which is requested in the information request to the edge server or the other mobile terminal on the upstream side, and when the non-necessity information is acquired, discarding the unnecessary data if the data is stored.

15. The data collection method according to claim 10, (0) (2)

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Application US20190281447

DISTRIBUTED DATA PROCESSING SYSTEM, CENTER SERVER, EDGE SERVER, MOBILE TERMINAL, AND METHOD

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