Air Conditioning Capacity Calculation Using Power and Temperature Data
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Solution Overview
Problem
The existing air conditioning capacity measuring systems require a large number of sensors, increasing operational labor and costs, as they need to acquire and measure various types of data to calculate the capacity of air conditioning apparatuses.
Innovation Solution
An air conditioning capacity presenting system that includes a first acquisition unit, a measurement unit, a second acquisition unit, and a capacity calculating unit, which acquires outdoor unit capacity information, measures power consumption, and uses outside air temperature to calculate the capacity, reducing the need for multiple data types and selecting appropriate capacity calculation models based on outdoor unit information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large number of sensors are installed to measure the capacity of the air conditioning apparatus, then the measurement precision is improved, but the device complexity and cost increase
Solution Approach 1:
The patent extracts only the essential parameters needed for capacity calculation (power consumption and outside air temperature) from the full set of measurable parameters. By removing unnecessary sensors (such as those for indoor air temperature, humidity, and detailed flow measurements), the system achieves adequate measurement precision with minimal device complexity.
Solution Approach 2:
The power consumption measurement serves multiple functions: it directly indicates the operational state of the outdoor unit and, when combined with outside air temperature data, enables capacity calculation. This multi-functional use of a single measurement reduces the need for specialized sensors while maintaining measurement precision.
2Measurement precision
If a large number of sensors are installed to measure the capacity of the air conditioning apparatus, then the measurement precision is improved, but the ease of operation deteriorates due to increased operational labor
Solution Approach 1:
The patent extracts only the essential parameters needed for capacity calculation (power consumption and outside air temperature) from the full set of measurable parameters. By removing unnecessary sensors (such as those for indoor air temperature, humidity, and detailed flow measurements), the system achieves adequate measurement precision with minimal device complexity.
Solution Approach 2:
The system automatically acquires and processes the necessary data without requiring manual intervention. The power consumption is measured automatically by the power meter, the outside air temperature is acquired by the second acquisition unit, and the capacity calculating unit automatically computes the result, eliminating the need for operator labor in data collection and calculation.
3Measurement precision
If multiple types of data are acquired to calculate the capacity, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent extracts only the essential parameters needed for capacity calculation (power consumption and outside air temperature) from the full set of measurable parameters. By removing unnecessary sensors (such as those for indoor air temperature, humidity, and detailed flow measurements), the system achieves adequate measurement precision with minimal device complexity.
Solution Approach 2:
The patent changes the approach from directly measuring multiple physical parameters (temperature, flow rate, pressure) to using power consumption as a proxy parameter that correlates with capacity. This parameter substitution reduces the number of measurement devices needed while maintaining calculation accuracy through the relationship between power consumption and air conditioning capacity.
Data Source
AI summary
An air conditioning capacity presenting system presents a capacity of an air conditioning apparatus including at least one outdoor unit, at least one indoor unit, and a connection pipe that connects the outdoor unit and the indoor unit. The air conditioning capacity presenting system includes first acquisition unit, a measurement unit, a second acquisition unit, and a capacity calculating unit. The first acquisition unit acquires outdoor unit capacity information, which is a rated capacity of the outdoor unit or information related to the rated capacity. The measurement unit measures power consumption of the outdoor unit. The second acquisition unit acquires an outside air temperature, which is a temperature of air around the outdoor unit. The capacity calculating unit obtains a calculation value of the capacity of the air conditioning apparatus based on the outdoor unit capacity information, the power consumption, and the outside air temperature.