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Image information fused concentrated air conditioner thermal comfort degree PMV control method

A centralized air-conditioning and thermal comfort technology, applied in space heating and ventilation control input, control input related to air characteristics, control input related to users/components, etc., can solve the problem that the PMV model cannot describe the dynamic reality well environment and other issues to achieve the effect of saving operating costs

Active Publication Date: 2018-04-17
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a PMV control method for centralized air-conditioning thermal comfort by fusing image information, seek accurate thermal comfort control of centralized air-conditioning in a dynamic environment, and solve the problem that the PMV model in a conventional static environment cannot describe the dynamic reality well. Environmental issues

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  • Image information fused concentrated air conditioner thermal comfort degree PMV control method
  • Image information fused concentrated air conditioner thermal comfort degree PMV control method
  • Image information fused concentrated air conditioner thermal comfort degree PMV control method

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Embodiment Construction

[0061] Taking the summer working conditions of a certain university gymnasium as an example, in conjunction with the accompanying drawings, the present invention is described in further detail:

[0062] The PMV is adjusted by controlling the temperature and wind speed (controlling the speed of the air-conditioning fan and the opening of the electric adjustment threshold of the chilled water), and a PMV control method for the thermal comfort of the centralized air-conditioning is established by fusing image information. First, image processing technology is used to estimate the crowd density of the building space, and the load of the building space is estimated according to the estimated crowd density, the actual demand for fresh air volume and wind speed are calculated, and the amount of clothing worn by the crowd is estimated. Then calculate the PMV value and compare it with the set PMV expected value Ps. If the calculated PMV value is equal to the expected value, keep the tem...

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Abstract

The invention discloses an image information fused concentrated air conditioner thermal comfort degree PMV control method. Through the method, the dynamic environment concentrated air conditioner thermal comfort degree is controlled accurately so as to solve the problem that a PMV model cannot well describe a dynamic real environment under a conventional static environment. The method comprises the steps of conducting analysis processing on people under an indoor environment though the computer vision technology to acquire load change and fresh air volume requirement change caused by change ofthe number of people and the clothing condition of the people in a building space, establishing a PMV model under the dynamic environment based on the factors and applying the PMV model to control over an air conditioner to quickly meet the requirements of the people in the indoor environment for the thermal comfort degree. According to the control method based on the thermal comfort degree, parameters of the model are adjusted to enable the indoor environment to be kept in a comfortable environment which can be accepted by the indoor people all the time; and moreover, on the premise of guaranteeing the thermal comfort degree of human bodies, the running cost is saved by controlling the running mode of the air conditioner.

Description

technical field [0001] The invention belongs to the field of air-conditioning control, and in particular relates to a PMV control method for centralized air-conditioning thermal comfort by fusing image information. Background technique [0002] The air-conditioning control method based on thermal comfort takes people's perceived comfort as the control target, and adjusts the human body's perception of the indoor thermal environment by changing parameters such as indoor ambient temperature and indoor wind speed. For the control of air conditioning, its significance lies in meeting the thermal comfort requirements of people in the indoor space. This thermal comfort includes not only the ambient temperature and relative humidity parameters of the indoor space, but also the air supply speed of the air conditioner, the radiation temperature, the thermal resistance of the clothes of the indoor people, and the metabolic rate of the human body. Compared with conventional air-condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/63F24F11/74F24F110/10F24F110/30F24F120/10
Inventor 刘光辉孟月波徐胜军熊福力宋丽君
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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