Data collection method, system, and computer product

• US 9,813,932 B2
• Filed: 09/02/2015
• Issued: 11/07/2017
• Est. Priority Date: 03/07/2013
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Otomo, Toshiya, Yamashita, Koichiro, Suzuki, Takahisa, Yamauchi, Hiromasa
• Primary Examiner(s): Levitan, Dmitry H
• Application Number:
  US14/843,059
• Publication Number:
  US 20150382228A1
• Time in Patent Office: 797 Days
• Field of Search: 370310, 370328, 370400, 370437, 370477
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 4/38 for collecting sensor information
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A data collection method of a system that transmits and receives data by respective communications apparatuses among plural communications apparatuses performing multihop communication, includes suspending transmission of data obtained from a second sensor, a communications apparatus among the plural communications apparatuses suspending the transmission by the second communications apparatus when contents of data obtained from a first sensor of a first communications apparatus among the plural communications apparatuses and contents of data obtained from the second sensor of a second communications apparatus among the plural communications apparatuses are equivalent.

Claims

1. A data collection method of a system that transmits and receives data by respective communications apparatuses among a plurality of communications apparatuses performing multihop communication, the data collection method comprising

suspending transmission of data obtained from a second sensor, a communications apparatus among the plurality of communications apparatuses suspending the transmission by the second communications apparatus when a difference between data obtained from a first sensor of a first communications apparatus among the plurality of communications apparatuses and data obtained from the second sensor of a second communications apparatus among the plurality of communications apparatuses is within a threshold;

resuming the transmission of the data obtained from the second sensor, the communications apparatus among the plurality of communications apparatuses resuming the transmission by the second communications apparatus when, after the transmission of the data obtained from the second sensor has been suspended, the difference between the data obtained from the first sensor and the data obtained from the second sensor exceeds the threshold;

setting the first communications apparatus and the second communications apparatus to be in a same group, the communications apparatus among the plurality of communications apparatuses setting the first communications apparatus and the second communications apparatus to be in the same group when the difference between the data obtained from the first sensor and the data obtained by the second sensor is within the threshold; and

transmitting the data obtained from the first sensor and identification information indicating that the first and the second communications apparatuses are in the same group, the first communications apparatus transmitting the data and the identification information when the communications apparatus among the plurality of communications apparatuses sets the first communications apparatus and the second communications apparatus to be in the same group.

2. The data collection method according to claim 1, further comprising:

removing the second communications apparatus from the group, the communications apparatus among the plurality of communications apparatuses removing the second communications apparatus when the transmission of the data obtained from the second sensor is resumed by the second communications apparatus; and

transmitting the data obtained from the first sensor and identification information of the first communications apparatus, the first communications apparatus transmitting the data obtained from the first sensor and the identification information of the first communications apparatus when the communications apparatus among the plurality of communications apparatuses removes the second communications apparatus from the group.

3. The data collection method according to claim 1, further comprising

removing the first communications apparatus from the group, the communications apparatus among the plurality of communications apparatuses removing the first communications apparatus from the group when after the first communications apparatus and the second communications apparatus have been set to be in the same group, the contents of the data obtained from the first sensor changes, wherein

the transmitting of the data obtained from the first sensor and the identification information of the first communications apparatus includes the first communications apparatus transmitting the data obtained from the first sensor and the identification information of the first communications apparatus when the communications apparatus among the plurality of communications apparatuses removes the first communications apparatus from the group.

4. The data collection method according to claim 3, wherein

the removing of the first communications apparatus from the group includes the communications apparatus among the plurality of communications apparatuses removing the first communications apparatus from the group when the second communications apparatus is set in the same group as the first communications apparatus is a plurality of second communications apparatuses and the contents of the data obtained from the first sensor changes, and

the data collection method further comprising transmitting data obtained from a sensor of a second communications apparatus among the plurality of second communications apparatuses and identification information indicating that each second communications apparatus among the plurality of second communications apparatuses is set to be in the same group, the second communications apparatus among the plurality of second communications apparatuses transmitting the data obtained from the sensor and the identification information when the communications apparatus of the plurality of communications apparatuses removes the first communications apparatus from the group.

5. The data collection method according to claim 1, wherein

the suspending includes suspending the transmission of the data obtained from the second sensor, the transmission by the second communications apparatus being suspended when the difference between the data obtained from the first sensor of the first communications apparatus and the data obtained from the second sensor of the second communications apparatus among the plurality of communications apparatuses and communicable with the first communications apparatus is within the threshold.

6. The data collection method according to claim 1, wherein

the first communications apparatus transmits the data obtained from the first sensor,

the second communications apparatus upon receiving the data obtained from the first sensor, determines whether the difference between the data obtained from the first sensor and the data obtained from second sensor is within the threshold, and upon determining that the difference between the data obtained from the first sensor and the data obtained from the second sensor is within the threshold, suspends the transmission thereby of the data obtained from the second sensor.

7. A system that transmits and receives data by respective communications apparatuses among a plurality of communications apparatuses performing multihop communication, the system comprising:

a determining circuitry configured to determine whether a difference between data obtained from a first sensor of a first communications apparatus among the plurality of communications apparatuses and data obtained from a second sensor of a second communications apparatus among the plurality of communications apparatuses is within a threshold;

a control circuitry configured to;

suspend transmission of the data obtained from the second sensor, the control circuitry suspending the transmission by the second communications apparatus when the difference between the data obtained by the first sensor and the data obtained by the second sensor is determined to be within the threshold by the determining circuitry; and

resume the transmission of the data obtained from the second sensor, the control circuitry resuming the transmission by the second communications apparatus when, after the transmission of the data obtained from the second sensor has been suspended, the difference between the data obtained from the first sensor and the data obtained from the second sensor exceeds the threshold;

set the first communications apparatus and the second communications apparatus to be in a same group, the control circuitry setting the first communications apparatus and the second communications apparatus to be in the same group when the difference between the data obtained from the first sensor and the data obtained by the second sensor is within the threshold; and

transmit the data obtained from the first sensor and identification information indicating that the first and the second communications apparatuses are in the same group, the control circuitry transmitting the data and the identification information when the first communications apparatus and the second communications apparatus are set to be in the same group.

8. A non-transitory, computer-readable recording medium storing therein a data collection program of a system that transmits and receives data by respective communications apparatuses among a plurality of communications apparatuses performing multihop communication, the data collection program causing any one among the plurality of communications apparatuses to execute a process comprising:

suspending transmission of the data obtained from a second sensor, the transmission by a second communications apparatus being suspended when a difference between data obtained from a first sensor of a first communications apparatus among the plurality of communications apparatuses and data obtained from the second sensor of the second communications apparatus among the plurality of communications apparatuses is within a threshold;

resuming the transmission of the data obtained from the second sensor, the transmission by the second communications apparatus being resumed when, after the transmission of the data obtained from the second sensor has been suspended, the difference between the data obtained from the first sensor and the data obtained from the second sensor exceeds the threshold;

setting the first communications apparatus and the second communications apparatus to be in a same group, the first communications apparatus and the second communications apparatus being set to be in the same group when the difference between the data obtained from the first sensor and the data obtained by the second sensor is within the threshold; and

transmitting the data obtained from the first sensor and identification information indicating that the first and the second communications apparatuses are in the same group, the first communications apparatus transmitting the data and the identification information when the first communications apparatus and the second communications apparatus are set to be in the same group.