A control method for multimedia classroom air conditioner

A technology of multimedia classrooms and control methods, which is applied in the field of air conditioning control in multimedia classrooms, and can solve the problems that the fixed value control method is difficult to achieve the expected effect, cannot represent the objective situation, and fails.

Active Publication Date: 2020-10-02
SHENZHEN EAGLESOUL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] But at present, the research and development in the field of air conditioning control mainly focuses on the temperature control of small-area indoors. This kind of control is usually fixed-value control, that is, a specified target temperature is given, and then the temperature of the entire room is adjusted to this temperature. It is easy to implement indoors, but for medium-sized multimedia classrooms, although the number of air-conditioning indoor units increases, it is difficult to achieve the desired effect by the fixed value control method. Due to the limitation of the installation location of the air-conditioning indoor In a small-area room, or a central air conditioner with multiple air outlets in a large-area room, the air can be evenly supplied or the air parameters can be adjusted, and the air can only be supplied from one point from near to far to the distance, while the heat source in the multimedia classroom is complicated. , so it is difficult to achieve fixed value control. Even if the indoor temperature is stabilized at a fixed value, the temperature gap between different indoor areas will inevitably exist objectively. The actual temperature calculated by the air conditioner based on the conventional algorithm cannot represent the objective situation in the room.
Moreover, at present, when judging whether dehumidification operation is needed, it is often determined based on empirical parameters or table look-ups. In complex environments, this kind of judgment will fail

Method used

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  • A control method for multimedia classroom air conditioner
  • A control method for multimedia classroom air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] The user sets the temperature of the multimedia classroom, S1: start; S11: set the highest temperature TU = 24°C and the lowest temperature TL = 21°C; S2: the air-conditioning indoor unit detects the actual number of people in the classroom R 实, the distribution of people in the classroom and the detection of the current actual temperature T 实 =30°C; S3: according to R 实 , The distribution of people in the classroom, determine the target cooling temperature and air supply mode of the air conditioner;

[0124] Among them, S31: judging whether there are people in the air-supply area near the air conditioner, and if there are people, go to S32,

[0125] S32: Judging whether there are people in the long-distance air supply area of ​​the air conditioner, and if no one is found in the distance, go to S321;

[0126] S321: Set the target cooling temperature of the air conditioner as TS=30°C+0.5°C;

[0127] S322: Determine whether TS is greater than TU, TS=30.5>24, so execute...

Embodiment 2

[0138] The user sets the temperature of the multimedia classroom, S1: start; S11: set the highest temperature TU = 24°C and the lowest temperature TL = 21°C; S2: the air-conditioning indoor unit detects the actual number of people in the classroom R 实 , the distribution of people in the classroom and the detection of the current actual temperature T 实 =22°C; S3: according to R 实 , The distribution of people in the classroom, determine the target cooling temperature and air supply mode of the air conditioner;

[0139] Among them, S31: judging whether there are people in the air-supply area near the air conditioner, and if there are people, go to S32,

[0140] S32: Judging whether there are people in the long-distance air supply area of ​​the air conditioner, and if no one is found in the distance, go to S321;

[0141] S321: Set the target cooling temperature of the air conditioner as TS=22°C+0.5°C;

[0142] S322: Determine whether TS is greater than TU, TS=22.5<24, so the va...

Embodiment 3

[0155] If there is no one near the air conditioner and there are people far away, then the target temperature of the air conditioner should be lowered to TL, and the temperature should be lowered slowly with a gradient ΔT, and finally the area far away from the air conditioner should be controlled at TL. It should be noted that sometimes an additional detection device needs to be added outside the air-conditioning indoor unit for detecting the temperature of an area far from the air conditioner. Generally, the air conditioner detects the indoor temperature only at the air inlet of the indoor unit, but this detection sometimes cannot adapt to the detection of the indoor temperature of a large area.

[0156] For temperature detection, it also emphasizes the amount of change in the number of people, because it is not easy to detect the accurate value of humidity in a large-area indoor environment, so it emphasizes the impact of changes in the number of people on air-conditioning c...

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Abstract

The present invention provides a method for controlling an air conditioner in a multimedia classroom, said method comprising: using end points TL and TU of a temperature range to adjust indoor air; and determining whether there is a person in a near-range air-supply area of the air conditioner and there is no person in a far-range air-supply area of the air conditioner: if so, increasing, in a stepwise manner, the indoor temperature to TU, and making the air supply time of the near-range air-supply area be long and the air supply time of the far-range air-supply area of the air conditioner be short, and if it is determined that there is no person in the near-range air-supply area of the air conditioner and there is a person in the far-range air-supply area of the air conditioner, decreasing, in a stepwise manner, the indoor temperature to TL, and making the air supply time of the near-range air-supply area be short and the air supply time of the far-range air-supply area of the air conditioner be long. By means of joint operation of a temperature range and a person distribution, it is possible to better adapt to the use requirements of a multimedia classroom.

Description

technical field [0001] The invention relates to an air conditioner control method, in particular to an air conditioner control method applied to a multimedia classroom. Background technique [0002] Multimedia classrooms are composed of multimedia computers, LCD projectors, digital video display stands, central control systems, projection screens, audio equipment and other modern teaching equipment. With the upgrading and improvement of teaching equipment and the popularization of multimedia classrooms, the large multimedia classrooms in the past are gradually replaced by medium-sized multimedia classrooms. It is much smaller, and it is not suitable or necessary to install a central air conditioner. Therefore, a large number of indoor hanging or cabinet machines has become the first choice for such medium-sized multimedia classrooms. With the development of ventilation and air-conditioning technology in recent years, in the prior art, air conditioners can easily and accurat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/65F24F11/61F24F11/86F24F11/871
CPCF24F11/00F24F11/61F24F11/64F24F11/65F24F11/86F24F11/871
Inventor 陈鹏宇滕凯赵鹏祥
Owner SHENZHEN EAGLESOUL TECH CO LTD
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