Sensor Placement Layout for Accurate Indoor Temperature Prediction

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Solution Overview

Problem

Conventional air-conditioning control systems face challenges in accurately predicting temperature distributions and optimizing sensor placement due to the influence of air conditioners on temperature, leading to inefficient control and increased costs.

Innovation Solution

A sensor arrangement determination device that acquires air conditioner information and space information to determine optimal placement for constant sensors and teacher data acquisition sensors, avoiding areas with significant air conditioner influence, thereby improving temperature prediction accuracy and reducing installation costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sensors are installed in areas with significant air conditioner influence to improve measurement coverage, then temperature prediction accuracy deteriorates due to air conditioner interference

Engineering Contradiction:
Improvetemperature prediction accuracyVSAvoidair conditioner influence on sensor measurement
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and excludes areas with significant air conditioner influence from the sensor arrangement candidate locations. By identifying and removing these harmful zones from consideration, the system ensures sensors are placed only in locations不受air conditioner interference, thereby maintaining high temperature prediction accuracy while achieving comprehensive spatial coverage.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by differentiating between suitable and unsuitable locations for sensor placement based on local air conditioner influence. Each spatial location is evaluated individually, and sensors are placed in locations with favorable local conditions (low air conditioner influence) while avoiding locations with unfavorable conditions (high air conditioner influence), thus optimizing measurement precision locally across the entire space.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If multiple sensors are installed to improve temperature prediction accuracy, then installation costs increase

Engineering Contradiction:
Improvetemperature prediction accuracyVSAvoidnumber of sensors
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent performs preliminary determination of optimal sensor arrangement locations before actual sensor installation. By pre-calculating the minimum number of sensors needed and their precise locations using the arrangement determination device, the system avoids unnecessary sensor installations while ensuring sufficient temperature prediction accuracy, thus reducing installation costs without sacrificing measurement precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter of sensor quantity from a fixed or excessive number to an optimized minimum number determined by the arrangement determination device. By adjusting this parameter based on spatial analysis and air conditioner influence assessment, the system achieves the required temperature prediction accuracy with the fewest necessary sensors, thereby reducing installation and maintenance costs.

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If sensors are placed to cover the entire space, then installation costs increase due to excessive sensors

Engineering Contradiction:
Improvesensor coverage areaVSAvoidnumber of sensors
Core Design Contradiction:
Area of stationary objectVSQuantity of substance

Solution Approach 1:

The patent applies partial action by determining that complete uniform sensor distribution throughout the entire space is unnecessary. Instead, sensors are strategically placed in specific partial regions that provide optimal temperature prediction coverage, avoiding installation in areas where sensors would be redundant or ineffective, thus reducing the total number of sensors while maintaining adequate spatial coverage.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent performs preliminary spatial analysis to identify the minimum necessary coverage areas for temperature prediction before sensor installation. By pre-determining which regions require sensor monitoring and which do not, the system achieves comprehensive coverage of critical areas with fewer sensors, avoiding excessive installation costs while maintaining effective space monitoring.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250012466A1Sensor arrangement determination device and sensor arrangement determination method
Publication Date: 2025.01.09 DAIKIN INDUSTRIES LTD
  • US20250012466A1 patent drawing
  • US20250012466A1 patent drawing
  • US20250012466A1 patent drawing

AI summary

A sensor arrangement determination device determines arrangement of a sensor that measures an environment in a space. The sensor arrangement determination device includes an acquisition unit and a determination unit. The acquisition unit acquires first information and second information. The first information is information in which a factor that influences the environment and an influence of a distance from the factor on the environment are associated with each other. The second information is related to arrangement of the factor in the space. The determination unit determines an arrangement candidate for the sensor in the space based on the first information and the second information.