Method of disabling control state that suppresses output, program, and air-conditioning system
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Solution Overview
Problem
In an air conditioning system where an information terminal controls an air conditioner via a management device, communication disconnection between the management device and the air conditioner can prevent the release of the output-suppressed control state from the information terminal.
Innovation Solution
A method that includes a confirmation step to check if communication between the control device and the management device is disconnected, and a transmission control step that allows the command to release the output-suppressed control state to be transmitted to the control device without intervention from the management device if communication is disconnected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the management device controls the air conditioner to be in an output-suppressed control state via network communication, then the air conditioner operation can be prohibited and energy consumption can be reduced, but if communication between the management device and the air conditioner is disconnected, the output-suppressed control state cannot be released from the information terminal
Solution Approach 1:
The control device serves as an intermediary between the information terminal and the air conditioner. When communication between the management device and air conditioner is disconnected, the control device receives release commands from the information terminal and forwards them to the air conditioner, enabling indirect communication path to resolve the control state release issue.
Solution Approach 2:
The system is segmented into multiple independent components: management device, control device, air conditioner, and information terminal. This segmentation allows the control device to independently handle release commands when the management device-air conditioner communication path is unavailable, ensuring system functionality despite partial communication failures.
2Reliability
If the system requires management device intervention for releasing the output-suppressed control state, then centralized control and security are maintained, but user-side devices cannot directly control the air conditioner when communication is disconnected
Solution Approach 1:
The control system dynamically adjusts its operation mode based on communication status. When communication between management device and air conditioner is normal, the system operates in centralized mode requiring management device intervention. When communication is disconnected, the system automatically switches to decentralized mode allowing direct control from information terminal through the control device, providing adaptability to different communication conditions.
Solution Approach 2:
The system changes its control parameters (communication paths, authorization levels) based on the connection status between management device and air conditioner. This parameter change enables the system to maintain functionality under varying communication conditions by adjusting which control paths are active and how commands are routed.
Data Source
AI summary
A method of releasing an output-suppressed control state in an air conditioning system that includes a control device to control one or more air conditioners, and a management device to be connected to the control device via a network to transmit, to the control device, a command to control output suppression of an air conditioner to cause the air conditioner to be in the output-suppressed control state, includes confirming whether communication between the control device and the management device is disconnected; and if the communication between the control device and the management device is not disconnected, prohibiting transmission of a command to release the output-suppressed control state to the control device without intervention of the management device, and if the communication is disconnected, allowing transmission of the command to release the output-suppressed control state to the control device without intervention of the management device.