Control device for air conditioning system, air conditioning system, and method for determining anomaly of air conditioning system
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Solution Overview
Problem
In air conditioning systems with insufficient external network environments and high installation costs, accurately determining the operating state and identifying anomalies is challenging, especially when indoor and outdoor units are manufactured by different makers.
Innovation Solution
A control device that communicates with both indoor and outdoor units, allowing for active monitoring by changing operating points and acquiring state quantities, enabling accurate anomaly determination without relying on remote monitoring servers, and allowing for easy replacement and compatibility with units from different manufacturers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a remote monitoring center server is installed to accurately determine operating state and detect anomalies, then measurement precision and reliability are improved, but device complexity and installation cost increase
Solution Approach 1:
The patent extracts the anomaly detection function from a complex remote monitoring center server and implements it locally within the air conditioning system using a simple processor that compares operating data against predetermined standards. This eliminates the need for expensive external servers while maintaining detection accuracy.
Solution Approach 2:
The air conditioning system performs self-diagnosis by automatically monitoring its own operating data and comparing it against predetermined standards stored in its own memory. The system can independently determine anomalies without requiring external monitoring infrastructure,实现ing self-service anomaly detection.
2Adaptability or versatility
If different control devices are used for indoor and outdoor units to maintain manufacturing independence, then adaptability is improved, but measurement precision of overall system state deteriorates
Solution Approach 1:
The patent creates a universal anomaly detection standard that can be applied across different manufacturers' equipment. The predetermined standards stored in memory are designed to work with various types of indoor and outdoor units, enabling cross-manufacturer compatibility while maintaining accurate system-wide monitoring.
Solution Approach 2:
The communication bus acts as an intermediary that standardizes data exchange between different manufacturers' control devices. By establishing a common communication protocol and data format, the system can accurately aggregate operating data from diverse sources without requiring proprietary integration for each manufacturer pair.
3Measurement precision
If remote monitoring is implemented in areas with insufficient external network environment, then measurement precision is improved, but device complexity and infrastructure requirements increase
Solution Approach 1:
The patent extracts the anomaly detection capability from external network infrastructure and embeds it directly within the air conditioning system's local processor. This eliminates dependence on external networks and servers, enabling accurate anomaly detection in remote locations without requiring complex communication infrastructure.
Solution Approach 2:
The system performs autonomous anomaly detection using its own embedded processor and stored predetermined standards, completely independent of external monitoring services. This self-service approach allows the system to maintain high measurement precision in areas with insufficient network infrastructure.
Data Source
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AI summary
A control device (3) for an air conditioning system (1) is provided with: an outdoor-unit control part (43) capable of communication with an outdoor unit (B) through a communication medium, the outdoor-unit control part (43) acquiring, through the communication medium, information about machinery installed in the outdoor unit (B) and outputting control commands to the machinery installed in the outdoor unit (B); and an indoor-unit control part (41) capable of communication with an indoor unit (A) through a communication medium, the indoor-unit control part (41) acquiring, through the communication medium, information about machinery installed in the indoor unit (A) and outputting control commands to the machinery installed in the indoor unit (A). The control device (3) individually changes the operating point of the machinery installed in the indoor unit (A) or the outdoor unit (B), acquires a predetermined state quantity before and after the change, and executes a malfunction prediction operation to determine the presence or absence of an anomaly in the machinery. The control device (3) for the air conditioning system (1) can thereby ascertain the operating state of the air conditioning system (1) more simply and accurately.