Collecting system, collecting apparatus, and power control method
AssigneeFujitsu Limited
InventorsKoji Kurihara, Koichiro Yamashita, Takahisa Suzuki
Life of this patent
Estimating the term…
Abstract
An observation system includes a plurality of nodes and an observation apparatus that collects information from the nodes using multi-hop communication for communicating with the nodes. The observation apparatus includes a link quality indicator (LQI) determination section and an output control section. The LQI determination section determines whether an LQI received from a node using the multi-hop communication is larger than a first threshold. When the LQI is larger than the first threshold, the output control section outputs a reduction command to the node associated with the LQI, the reduction command being a command to change the amount of transmission power in the multi-hop communication.
Claims6
A collecting system comprising:
- a plurality of nodes including a first processor;
- and
- a collecting apparatus that collects information from the nodes using multi-hop communication for communicating with the nodes,
- the collecting apparatus including a second processor configured to:
- determine whether communication quality received from the node using the multi-hop communication is higher than a certain threshold;
- and
- output a change command to the node associated with the communication quality when determining that the communication quality is higher than the certain threshold, the change command being a command to change an amount of transmission power in the multi-hop communication, wherein
- the first processor is configured to:
- determine whether deterioration is detected in communication with the collecting apparatus or a parent node of the node, the collecting apparatus and the parent node communicating with the node using the multi-hop communication;
- increase the amount of transmission power in the multi-hop communication when determining that the deterioration is detected in the communication;
- and
- start again the communication with the collecting apparatus or the parent node.
A collecting apparatus comprising a processor configured to:
- determine whether communication quality received from a node using multi-hop communication for communicating with a plurality of nodes is higher than a certain threshold;
- and
- output a change command to the node associated with the communication quality when determining that the communication quality is higher than the certain threshold, the change command being a command to change an amount of transmission power in the multi-hop communication, wherein
- the plurality of nodes include a processor configured to:
- determine whether deterioration is detected in communication with the collecting apparatus or a parent node of the node, the collecting apparatus and the parent node communicating with the node using the multi-hop communication;
- increase the amount of transmission power in the multi-hop communication when determining that the deterioration is detected in the communication;
- and
- start again the communication with the collecting apparatus or the parent node.
A power control method that is implemented by an information processing apparatus, the power control method comprising:
- determining, by a processor of the information processing apparatus, whether communication quality received from a node using multi-hop communication for communicating with a plurality of nodes is higher than a certain threshold;
- and
- outputting, by the processor, a change command to the node associated with the communication quality when determining that the communication quality is higher than the certain threshold, the change command being a command to change an amount of transmission power in the multi-hop communication, wherein
- the plurality of nodes include a processor configured to:
- determine whether deterioration is detected in communication with the collecting apparatus or a parent node of the node, the collecting apparatus and the parent node communicating with the node using the multi-hop communication;
- increase the amount of transmission power in the multi-hop communication when determining that the deterioration is detected in the communication;
- and
- start again the communication with the collecting apparatus or the parent node.
Dependencies are inferred from the claim text.