Control device, system and control method therefor
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Solution Overview
Problem
Conventional air conditioning systems require all control programs to operate with the same version, making it difficult to integrate new control specifications, and are prone to uncontrollable states due to unstable communication environments.
Innovation Solution
A control device that dynamically adjusts the control ratio between local and remote units based on communication quality, using multiple control modes and monitoring communication quality to ensure continuous stable control, even in unstable environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control is performed via network communication between control device and apparatus, then ease of operation is improved, but reliability deteriorates due to communication instability
Solution Approach 1:
The system dynamically switches between remote control mode (via network) and local control mode (via local controlling unit) based on communication quality. When communication is stable, remote control is used for ease of operation. When communication deteriorates, the system automatically transitions to local control to maintain reliability, thus resolving the contradiction between ease of operation and reliability.
2Adaptability or versatility
If control ratio is fixed between local controlling unit and control device, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The control ratio between local controlling unit and control device is made dynamic rather than fixed. The system adjusts the control ratio based on communication quality, automatically switching between different control modes. This dynamic adjustment enables adaptability to different communication environments without requiring complex manual configuration, resolving the contradiction between adaptability and device complexity.
3Adaptability or versatility
If all control programs use the same version, then reliability is improved, but adaptability deteriorates
Solution Approach 1:
The control system is segmented into multiple independent control programs with different versions running in parallel. Each control program can handle different control specifications independently. The system selects appropriate control programs based on communication quality and control requirements, enabling both adaptability to new specifications and reliability through proven versions simultaneously.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An air conditioning system (1) includes an outdoor device (10) including an outdoor device controlling unit (13), which is a local controlling unit, and a control device (3) that can control the outdoor device (10) via a communication line (6). Cooperation between the outdoor device controlling unit (13) and the control device (3) can achieve control of the outdoor device (10), and the control ratio between the outdoor device controlling unit (13) and the control device (3) is dynamically changed in accordance with the communication quality of the communication line 6. Accordingly, in a system in which apparatus control is performed via a communication line, an influence on the control of a reduction in communication quality or interruption can be reduced.