Device management system and device management service providing method

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Solution Overview

Problem

Existing device management systems via networks can be inefficient, particularly when network disconnections occur, leading to unavailability of device control and prolonged execution times for control commands.

Innovation Solution

A device management system that allows both the control terminal and management apparatus to acquire and execute control commands, with the management apparatus determining whether to execute commands locally or remotely, ensuring efficient execution by allocating tasks based on the number of devices and estimated execution times, and handling events and secondary events.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If device control is centralized through network-connected management apparatus, then centralized management capability is improved, but control availability deteriorates when network disconnection occurs

Engineering Contradiction:
Improvecentralized management capabilityVSAvoidcontrol availability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The control function is segmented between the management apparatus and the control terminal. The control terminal is equipped with local storage for control commands and can execute them independently when network connection is unavailable, while the management apparatus handles centralized management when connected. This segmentation resolves the contradiction by allowing local autonomy while maintaining centralized capability.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If control commands are executed by management apparatus via network, then centralized control is improved, but execution time deteriorates due to network latency and processing delays

Engineering Contradiction:
Improvecentralized control capabilityVSAvoidcommand execution time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

Control commands are stored in advance in the control terminal's storage unit. When a control command is received, the control terminal can immediately execute it from local storage without waiting for network communication with the management apparatus. This preliminary action of storing commands locally eliminates network latency and reduces execution time while maintaining centralized control capability.

Inventive Principle:
Principle #10Preliminary action

3Speed

If control terminal executes commands locally, then execution speed is improved, but system complexity deteriorates due to distributed command management

Engineering Contradiction:
Improvecommand execution speedVSAvoidcommand management complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The control terminal is designed with multi-functionality: it can both receive and execute control commands from the management apparatus via network, and independently execute stored commands when disconnected. The standardized storage and execution mechanism allows the control terminal to handle multiple scenarios (connected/disconnected, single/multiple commands) without requiring complex additional logic, thus achieving fast execution without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12031739B2Device management system and device management service providing method
Publication Date: 2024.07.09 DAIKIN INDUSTRIES LTD
  • US12031739B2 patent drawing
  • US12031739B2 patent drawing
  • US12031739B2 patent drawing

AI summary

A device management system includes a device installed in a building, a control terminal connected to the device, and a management apparatus connected to the control terminal via a network. Both the control terminal and the management apparatus are configured to be capable of acquiring a control command that is created by a user. The control command that is created by the user is acquired by at least one of the control terminal and the management apparatus. Based on the control command that is acquired, control of the device is shared and executed in at least one of the control terminal and the management apparatus.