A non-invasive human body thermal comfort detection method and system based on posture estimation

Abstract

From the perspective of posture estimation, the invention discloses and provides a novel non-intrusive human body thermal comfort detection method. The method comprises the following steps: defining and verifying to obtain 12 thermal comfortable postures of a human body through a questionnaire survey method; achieving outputting of results of posture estimation and human body thermal comfort detection through computer video acquisition, Image preprocessing, Depth image processing, Training testing and application putting, wherein depth image processing comprises the steps that action recognition judgment conditions and thresholds corresponding to different posture estimations are set based on face domain and point domain locking of bone nodes, and posture estimation is from changes of coordinates of all the bone nodes of a comparison front frame and a comparison rear frame. When the detection method is applied to an intelligent building or a vehicle, effective feedback signals can be provided for a central air conditioning system in real time, so that people in a scene feel more comfortable, and energy is reliably saved.

Description

technical field [0001] The invention relates to technologies such as non-invasive detection of human thermal comfort, attitude estimation, energy efficiency, artificial intelligence, etc., and specifically relates to a non-invasive human thermal comfort detection method based on attitude estimation, which belongs to the field of computer science and HVAC technology. Background technique [0002] Real-time perception of human thermal comfort is crucial for building energy saving or automotive energy saving. If the current thermal comfort state of the occupants in the room / car can be grasped in real time, and then an effective feedback signal can be provided to the central air-conditioning system in real time to control parameters such as temperature, humidity and airflow in the entire room / car; not only can it meet the thermal comfort requirements of the human body It can also achieve the goal of building energy saving, thus serving the "people-oriented" intelligent building ...

AI Technical Summary

Problems solved by technology

Therefore, there are two major problems: 1), according to the International Organization for Standardization (ISO: International Organization for Standardization) and the American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE: American Society of Heating, Refrigeration and Air-Conditioning Engineers) on "thermal comfort If 80% of the people are satisfied with the definition of "environment", it can be judged as a thermally comfortable environment, so the environmental monitoring method is difficult to meet the needs of more people or everyone; 2), the user's self-adjusting knob, lacks automation

Images