Smart building system
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smart building systems fail to accurately detect human presence and movement within indoor spaces, leading to unnecessary activation of illuminating devices and air conditioners when no one is present, resulting in power waste.
Innovation Solution
A smart building system that includes a sensor unit to detect biometric information, a determination unit to analyze and adjust sensitivity based on indoor controller strength, and a control unit to manage indoor controllers such as air conditioners and illuminating units, using IR-UWB communication sensors to prevent false readings from air flow and store behavior patterns for efficient energy management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing sensors are used to detect human presence, then the illuminating device can be activated when a person enters, but the sensor cannot sense daily movements in the indoor space and leads to false activation when no person is present
Solution Approach 1:
The patent combines multiple sensor types (motion sensor, temperature sensor, humidity sensor) into a comprehensive sensing system. The determination unit integrates information from all sensors to make a unified decision about human presence, thereby improving detection accuracy while reducing false activations compared to using a single sensor type.
Solution Approach 2:
The system implements feedback mechanisms where the determination unit continuously monitors sensor data and adjusts the control unit's decisions accordingly. When sensor information indicates no human presence, the system feedbacks to turn off devices, and when movement is detected, it feedbacks to activate them, creating a responsive control loop that reduces false activations.
2Ease of operation
If the indoor controller driving strength is increased to meet occupancy demands, then comfort is improved, but the sensor unit may generate false readings due to strong air flow changes
Solution Approach 1:
The determination unit acts as an intermediary between the indoor controller and the sensor unit. It processes sensor readings in context of controller operations, distinguishing between movements caused by air flow (harmful factor) and actual human presence (useful signal). This intermediary function allows the system to maintain high controller driving strength for comfort while filtering out false sensor readings.
Solution Approach 2:
The system converts the harmful effect of strong air flow (which causes false sensor readings) into a beneficial feature by using the determination unit to recognize air flow patterns as indicators of active cooling/heating operation. This allows the system to correlate controller strength with expected environmental conditions, improving overall system intelligence and reducing false activations.
3Measurement precision
If the sensor sensitivity is increased to detect subtle movements, then detection capability is improved, but the system becomes more prone to false readings from environmental factors
Solution Approach 1:
The patent merges data from multiple sensor types with different sensitivity characteristics. While the motion sensor operates at high sensitivity to detect subtle movements, the temperature and humidity sensors provide contextual information that helps distinguish real movements from environmental noise. This combination allows the system to maintain high detection sensitivity while filtering out false readings through multi-parameter analysis.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents unnecessary power consumption by accurately determining human presence and adjusting indoor controller strengths, ensuring proper setting and reducing energy waste by controlling devices based on occupancy and movement patterns.
Implementation Method 1
a sensor unit disposed in an indoor space to sense a presence of a person located in the indoor space and biometric information of the person located in the indoor space
Implementation Method 2
using IR-UWB communication sensors to prevent false readings from air flow
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An embodiment of the present invention provides a smart building system. The smart building system includes a sensor unit located in a indoor space to sense the presence of a person in the indoor space and biometric information of the person located in the indoor space, a determination unit determining whether or not the person is located in the indoor space on the basis of the information acquired by the sensor unit, and a controller controlling an indoor controller disposed inside the indoor space on the basis of the information determinate by the determination unit.