Air-conditioning system, management device, sensor data acquisition method and program
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air-conditioning systems face challenges in acquiring sensor data at short intervals or with enhanced quality, leading to increased communication traffic, which hinders accurate detection of malfunctions.
Innovation Solution
Implementing a management device that adjusts the acquisition cycle of sensor data to a shorter interval and enhances data quality only when a malfunction is detected, using a centralized management device or cloud server to manage multiple air conditioners, thereby reducing unnecessary communication traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor data is acquired at short time intervals or with enhanced quality, then detection accuracy of malfunction signs is improved, but communication traffic increases
Solution Approach 1:
The patent applies local quality by changing the data acquisition strategy specifically for air conditioners that show signs of malfunction. Instead of uniformly acquiring enhanced sensor data from all air conditioners, the system selectively increases acquisition frequency and detail only for units exhibiting abnormal patterns, thereby improving detection accuracy for problematic units while minimizing unnecessary communication traffic from normal units.
Solution Approach 2:
The patent implements dynamics by making the sensor data acquisition frequency adaptive rather than static. The system dynamically adjusts the acquisition interval based on the operational state of each air conditioner - using longer intervals during normal operation and switching to shorter intervals when malfunction signs are detected. This dynamic adjustment allows the system to maintain high detection accuracy when needed while reducing communication traffic during normal operation.
2Measurement precision
If sensor data acquisition frequency is increased, then malfunction detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent applies local quality by directing enhanced monitoring resources selectively to air conditioners showing malfunction signs rather than uniformly increasing monitoring for all units. This targeted approach improves detection accuracy for problematic units while avoiding unnecessary energy consumption from enhanced monitoring of normal units.
Solution Approach 2:
The patent implements dynamics by making the monitoring intensity adaptive based on system state. The acquisition frequency dynamically adjusts between low-power mode during normal operation and high-accuracy mode when anomalies are detected, allowing the system to maintain detection capability while minimizing overall energy consumption.
Data Source
Figure 1~2
Figure 3~5
Figure 6
AI summary
A centralized management device (2) includes a sensor data acquirer (200) and an acquisition cycle changer (203). The sensor data acquirer (200) acquires periodically, by communication, from each of one or more outdoor units (5), sensor data including measurement results of one or more sensors included by the outdoor unit (5). When a sign of malfunction is detected in any of the outdoor units (5), the acquisition cycle changer (203) makes a change to shorten an acquisition cycle of the sensor data for the outdoor unit (5) for which the sign of malfunction is detected.