Bluetooth-Based Occupancy Counting for Self-Adaptive HVAC Control
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Solution Overview
Problem
Existing HVAC systems in spatial regions, such as meeting rooms and offices, are manually controlled, making it inconvenient to adapt environmental conditions dynamically to changes in the number of people present, leading to inefficient and uncomfortable environments.
Innovation Solution
A living organism statistical system that uses Bluetooth modules carried by individuals to broadcast signals, allowing a statistical device to count people and communicate with an HVAC control management unit to automatically adjust air terminal devices based on quantity and density information, enabling intelligent and adaptive control of environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual control of air terminal devices is used, then device complexity is reduced, but adaptability to occupancy changes deteriorates
Solution Approach 1:
A Bluetooth module is introduced as an intermediary component carried by occupants to enable automatic detection and counting. This mediator bridges the gap between simple manual control and complex automated systems, allowing the statistical device to obtain occupancy information through Bluetooth signals without requiring complex sensors or cameras.
Solution Approach 2:
The system enables self-service control where the HVAC system automatically adjusts environmental conditions based on occupancy data collected from Bluetooth modules carried by occupants. The air terminal devices self-regulate temperature and airflow according to the number of detected occupants, eliminating the need for manual intervention while maintaining relatively simple device architecture.
2Productivity
If manual control of air terminal devices is used, then ease of operation is maintained, but productivity of environmental control deteriorates
Solution Approach 1:
The system implements automatic feedback control where the statistical device continuously monitors Bluetooth signals from occupants and sends occupancy information to the HVAC control management unit. The air terminal devices automatically adjust environmental parameters based on this feedback, significantly improving the productivity and responsiveness of environmental control compared to manual operations.
3Adaptability or versatility
If automatic control based on occupancy detection is implemented, then adaptability improves, but device complexity increases
Solution Approach 1:
The Bluetooth module serves multiple functions: it acts as an occupancy indicator, a communication device, and a carrier for identification information. This multi-functional approach allows the system to achieve sophisticated adaptive control using a relatively simple and universal component that occupants already carry (such as smartphones or ID cards), rather than requiring specialized sensing equipment.
Data Source
AI summary
A living organism statistical system in a predetermined spatial region according to the present invention includes Bluetooth modules that can be carried by living organisms and configured to broadcast a Bluetooth signal to the predetermined spatial region, and a living organism statistical device mounted in the predetermined spatial region and configured to receive Bluetooth signals from one or more of the Bluetooth modules and obtain quantity information of living organisms in the predetermined spatial region based on the received Bluetooth signals. The present invention can implement automatic determination of quantity information of living organisms in a predetermined spatial region, and therefore, the present invention can dynamically control one or more air terminal devices of an HVAC system in a self-adaptive manner according to changes in the quantity information.