Centralized control method and system for VRV air conditioning system, and computer readable storage medium

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Solution Overview

Problem

The complexity of centralized control in multi-split air conditioning systems, particularly in commercial settings, is hindered by complex wiring for wired communication and debugging processes for wireless communication, which are further destabilized by intricate indoor building structures.

Innovation Solution

A method and system that utilize a debugging terminal to acquire an outdoor unit's identification code, send acquisition requests to a cloud server, create projects based on received system information, generate delivery codes, and enable centralized control devices to activate projects without the need for communication wiring or network debugging, simplifying the management and supervision of multi-split air conditioning systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wired communication is used for centralized control, then control reliability is improved, but wiring complexity increases

Engineering Contradiction:
Improvecontrol reliabilityVSAvoidwiring complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical wiring system with a wireless communication system. The centralized control device communicates with outdoor and indoor units through wireless signals (WiFi, Bluetooth, or mobile network), eliminating the need for physical wiring between components while maintaining control functionality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a cloud server as an intermediary between the centralized control device and the air conditioning units. The control device sends instructions to the cloud server, which then relays them to the appropriate outdoor or indoor units, simplifying the direct communication requirements and reducing wiring complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If wireless communication is used for centralized control, then wiring complexity is reduced, but debugging complexity increases

Engineering Contradiction:
Improvewiring complexityVSAvoiddebugging complexity
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The patent implements preliminary binding between the centralized control device and air conditioning units during the installation phase. The debug terminal binds device identifiers to unit identifiers in advance, storing these relationships in the cloud server. This preliminary action eliminates the need for complex debugging procedures later, as the system is pre-configured to recognize and communicate with the correct units.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If wireless communication is used for centralized control, then wiring complexity is reduced, but communication stability deteriorates

Engineering Contradiction:
Improvewiring complexityVSAvoidcommunication stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The cloud server acts as a stable intermediary that receives control instructions from the centralized control device and relays them to the appropriate air conditioning units. This mediator approach provides multiple communication paths and handles signal routing, improving overall communication stability despite the wireless medium's inherent vulnerabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements a feedback mechanism where the cloud server confirms receipt of instructions and units confirm execution status. This feedback loop allows the system to detect and potentially retransmit lost or erroneous signals, enhancing communication reliability in the wireless environment.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11320167B2Centralized control method and system for VRV air conditioning system, and computer readable storage medium
Publication Date: 2022.05.03 GD MIDEA HEATING & VENTILATING EQUIP CO LTD
  • US11320167B2 patent drawing

AI summary

Disclosed is a centralized control method for a VRV air conditioning system, includes a debugging terminal sending a first acquisition request to a cloud server on the basis of an identification code, the debugging terminal creating a project on the basis of system information, the debugging terminal uploading project information corresponding to the project to the cloud server, and the cloud server generates a delivery code corresponding to the project information, a centralized control device sending a second acquisition request to the cloud server on the basis of the delivery code, and the centralized control device loading the project corresponding to the delivery code on the basis of the project information, and activating same. Also disclosed in the present application are a centralized control system for a VRV air conditioning system and a computer readable storage medium.