M2M Terminal Auto-Connection via Initial Center Routing

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Solution Overview

Problem

In large-scale M2M systems, managing and connecting numerous sensor and communication terminals is complex, requiring individual settings and leading to increased communication costs and potential disconnections, especially when dealing with varied sensor information and firmware updates.

Innovation Solution

A system with an initial connecting center that stores information about multiple secondary centers, allowing terminals to automatically connect by selecting optimal communication paths and destinations based on their state, reducing costs and preventing unnecessary disconnections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If individual management information is previously set for each terminal in large-scale M2M systems, then connection management becomes possible, but operation complexity and installation steps increase significantly

Engineering Contradiction:
Improveconnection managementVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The terminal automatically generates its own management information (terminal ID, destination address, communication parameters) without requiring manual configuration. This self-service approach eliminates complex individual setting operations while ensuring reliable connection management through automatically generated unique identifiers and routing information.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The necessary management information is prepared in advance during terminal manufacturing or initialization, including terminal ID, destination address of the initial connecting center, and basic communication parameters. This preliminary preparation enables automatic connection without field configuration operations.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple communication paths are used for firmware download and data transmission, then service functionality is enhanced, but communication costs increase due to multiple contracts

Engineering Contradiction:
Improveservice functionalityVSAvoidcommunication costs
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The communication system is segmented into two distinct phases: initial connection phase using a public line contract for authentication and routing setup, and data transmission phase using pay-as-you-go contracts for actual sensor data and firmware transfers. This segmentation allows the system to leverage the reliability of public line contracts for critical setup operations while using cost-effective pay-as-you-go contracts for routine communications.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The communication mode dynamically changes based on operational phase: public line contract parameters are used during initial connection and authentication, then switched to pay-as-you-go parameters for data transmission. This parameter change optimizes cost efficiency while maintaining service functionality across different operational stages.

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If communication terminals relay sensor information through multiple hops, then system coverage is expanded, but packet loss risk increases due to communication concentration

Engineering Contradiction:
Improvesystem coverageVSAvoidpacket loss risk
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

Communication terminals serve as intermediaries between sensor terminals and the center, relaying information through a structured multi-hop architecture. The initial connecting center acts as a mediator that coordinates routing and load distribution across multiple communication paths, preventing packet loss by balancing traffic concentration across available relays.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9712946B2Information-gathering system, sensor terminal, communication terminal and terminal connection control method
Publication Date: 2017.07.18 HITACHI LTD
  • US9712946B2 patent drawing
  • US9712946B2 patent drawing
  • US9712946B2 patent drawing

AI summary

In a terminal connection control method for a system having a plurality of centers, the plurality of centers include a first center for initial connection and a plurality of second centers, the first center includes information of the plurality of second centers, destination information of the first center and information of a terminal are previously stored in the terminal, when the terminal requires the system for connection, the terminal requires the first center for connection based on the destination information of the first center, and sends the terminal information to the first center, the first center selects, from the plurality of second centers, a destination of the terminal which sends connection requirement based on information received from the terminal and based on information of the second centers, and the first center sends the destination information of the selected second center to the terminal which sends the connection requirement.