Air condition control device

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Solution Overview

Problem

Conventional air condition control techniques fail to maintain uniform comfort in a room space when multiple air condition changing devices are present, leading to potential discomfort due to nonuniform temperature distribution.

Innovation Solution

An air condition control device that calculates and adjusts the influence degree of each air condition changing device across the room space by dividing it into regions, identifying control points, and optimizing the operation of devices to enhance comfort by increasing the control influence degree at low points.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional air condition control technique is used to control environmental information at a location where a person is present, then the environmental information at that location becomes closer to the target value, but the control is not executed on the entirety of the room space causing nonuniform temperature distribution

Engineering Contradiction:

Improveenvironmental information control accuracyVSAvoidtemperature uniformity in room space

Core Design Contradiction:

Measurement precisionVSStability of the object's composition

Solution Approach 1:

The room space is divided into multiple regions with equal areas, and control influence degrees are calculated for each region separately. This segmentation allows the system to address temperature uniformity across the entire room rather than focusing on a single location, resolving the contradiction between local control accuracy and global temperature uniformity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control approach transitions from point-based control (single location) to area-based control (multiple regions across the room). By calculating control influence degrees for each region and identifying the region with the lowest control influence degree, the system achieves comprehensive coverage and uniform temperature distribution throughout the room space.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple air condition changing devices are located in a room space, then the ability to change air condition is enhanced, but the comfort of the air condition may be impaired due to nonuniform temperature distribution

Engineering Contradiction:

Improveair condition changing capabilityVSAvoidtemperature uniformity

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The system calculates the control influence degree for each region based on the positions and running conditions of multiple air condition changing devices. By identifying the region with the lowest control influence degree and controlling the devices to increase the control influence degree in that region, the system creates a feedback mechanism that ensures uniform temperature distribution while utilizing the enhanced air condition changing capability of multiple devices.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If control is focused on a specific location where a person is present, then the environmental information at that location is optimized, but the comfort of other locations in the room space is impaired

Engineering Contradiction:

Improvelocal environmental controlVSAvoidoverall room comfort

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The room is divided into multiple regions, and the system evaluates control influence degrees across all regions rather than focusing on a single location. This segmentation approach ensures that local environmental control does not compromise overall room comfort, as the system identifies and addresses the region with the lowest control influence degree.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes the control parameter from local environmental information at a single point to control influence degrees across multiple regions. By controlling the air condition changing devices to increase the control influence degree in the region with the lowest value, the system maintains ease of operation while ensuring overall room comfort and temperature uniformity.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11474490B2Air condition control device

Publication Date: 2022.10.18 MITSUBISHI ELECTRIC CORP

AI summary

An air condition control device includes a calculating circuitry to calculate a control influence degree, intended for controlling air condition changing devices, at each of control points in a room space on the basis of positional information that indicates a position where each of the air condition changing devices is located, influence degree information that indicates an influence degree of an air condition exerted on each of locations by each of the air condition changing devices, and running condition information that indicates a running condition of each of the air condition changing devices. The control influence degree is an influence degree of an air condition exerted by the air condition changing devices. The air condition control device also includes a controlling circuit to control the air condition changing devices to increase the control influence degree at a control point, which is relatively low.