Communication system and congestion avoidance method therefor, and meter reading system using this communication system

一种通信系统、通知的技术，应用在查表系统领域，能够解决无线母站无线通信拥塞等问题，达到容易变更、提高收容效率的效果

Active Publication Date: 2014-12-24
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, if a wireless master station is newly installed in a place where many wireless slave stations are installed close to each other, the connection of the wireless slave stations will be concentrated to the newly installed wireless master station, and sometimes wireless communication congestion around the newly installed wireless master station will occur.

Method used

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  • Communication system and congestion avoidance method therefor, and meter reading system using this communication system
  • Communication system and congestion avoidance method therefor, and meter reading system using this communication system
  • Communication system and congestion avoidance method therefor, and meter reading system using this communication system

Examples

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Embodiment

[0049] Next, as a specific example of the communication system and its congestion avoidance method according to the above-mentioned embodiment, a table look-up system for measuring the usage of electric power will be taken as an example, and will be described in detail.

[0050] image 3 It is a figure which shows the look-up table system of the electric power consumption of the Example of this invention. In measuring devices 4-1, 4-2, 4-3, ..., 4-11, 4-12, ..., 4-21, 4-22, 4-23, ..., 4-31, In 4-32, 4-33, ..., wireless substations (communication components) 2-1, 2-2, 2-3, ..., 2-11, 2-12, ..., 2-21, 2 are respectively set -22, 2-23, ..., 2-31, 2-32, 2-33, .... These wireless substations 2-1, 2-2, 2-3, ..., 2-11, 2-12, ..., 2-21, 2-22, 2-23, ..., 2-31, 2-32, 2-33, ... are configured so as to be able to communicate with each other, and are subordinate to wireless master stations 1-1, 1-2, 1-3 installed on utility poles or the like. These wireless master stations 1-1, 1-2, 1-...

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Abstract

The present invention efficiently uses wireless resources while suppressing traffic and increasing accommodation efficiency in a wireless parent station for a wireless sub-station. The present invention provides a communication system wherein a plurality of wireless sub-stations (2-1, 2-2, 2-3,...) wirelessly communicate directly or via another wireless sub-station with wireless parent stations (1-1, 1-2) and communicate via wires or the like from the wireless parent stations to a collection control device (3). The collection control device (3) stores in memory first through fourth threshold values (a, b, c, d) and makes efficient use of and controls traffic by performing functionality control in which in accordance with the number of wireless stations accommodated, the following stages are passed through: connection suppression notice; specific high frequency communications suspension notice; and accommodation rejection notice.

Description

technical field [0001] The present invention relates to a communication system in which a plurality of wireless sub-stations perform wireless communication with a wireless master station directly or via other wireless sub-stations, and communicates from a wireless master station to a collection control device through wired means, and a method for avoiding congestion thereof, and uses the communication System look-up table system. Background technique [0002] There is known a telemetry system that performs meter look-up of a measuring device that measures the consumption of electric power, tap water, gas, etc. via a communication network (for example, Patent Document 1). In the telemetry system described in Patent Document 1, the communication end station as a wireless slave station automatically registers the identification information (CSID; Cell Station ID, base station number) of the repeater as a wireless master station, and the installation of the communication end sta...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04W28/02H04W4/04H04W48/06H04W84/22
CPCG01D4/002H04W48/06H04W84/22Y04S20/30H04L47/12Y02B90/20
Inventor安冈充昭上村育朗小林克己川角浩亮玉井宏明川上敬史竹内一也松原茂正大久保晃宫内直人
OwnerFUJITSU LTD