阅读说明：本技术 基于热成像数据的室内环境体感温度获取方法 (Indoor environment sensible temperature acquisition method based on thermal imaging data ) 是由 刘瑜 于 2020-05-12 设计创作，主要内容包括：本发明公开一种基于热成像数据的室内环境体感温度获取方法,包括设置在空调机壳上的红外窗口、湿度传感器和安装在空调内部的空调控制装置和处理器,红外窗口后面设置光学镜头,光学镜头后面设置热成像传感器,热成像传感器、湿度传感器和空调控制装置与处理器连接,处理器内部设置体感温度获取方法,包括以下步骤：(1)、处理器读取热成像数据f(x,y)和相对湿度Rh；(2)、设置M个票箱,即Box(i),对应温度域为i℃；(3)、遍历f(x,y),对Box(i)进行投票；(4)、计票获取得票最多的票箱Box(i<Sub>max</Sub>),因此环境温度t=i<Sub>max</Sub>℃；(5)、计算体感温度t<Sub>A</Sub>=1.07*t+1.221*Rh*<Image he="88" wi="114" file="216915DEST_PATH_IMAGE002.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>-2.7。(The invention discloses a method for acquiring indoor environment body sensing temperature based on thermal imaging data, which comprises an infrared window and a humidity sensor which are arranged on an air conditioner shell, and an air conditioner control device and a processor which are arranged in an air conditioner, wherein an optical lens is arranged behind the infrared window, a thermal imaging sensor is arranged behind the optical lens, the thermal imaging sensor, the humidity sensor and the air conditioner control device are connected with the processor, and the method for acquiring the body sensing temperature is arranged in the processor and comprises the following steps: (1) the processor reads the thermal imaging data f (x, y) and the relative humidity Rh; (2) setting M ballots, namely Box (i), and setting the corresponding temperature domain as i ℃; (3) f (x, y) is traversed, and a vote is carried out on box (i); (4) ticket Box Box (i) with most tickets obtained by counting tickets max ) Thus ambient temperature t = i max DEG C; (5) calculating the sensible temperature t A =1.07*t+1.221*Rh* ‑2.7。)

1. The method for acquiring the indoor environment body feeling temperature based on the thermal imaging data is characterized by comprising the following steps: including setting up infrared window, humidity transducer on air conditioner casing and installing at the inside air conditioner controlling means of air conditioner and the treater that carries out centralized control, infrared window set up optical lens at the back, optical lens set up hot imaging sensor at the back, hot imaging sensor output data be f (X, Y), wherein X =1~ X, Y =1~ Y, X is the row maximum value, Y is the maximum value of being listed as, hot imaging sensor, humidity transducer and air conditioner controlling means with the treater connect, the inside temperature acquisition method that feels that sets up of treater, the temperature acquisition method that feels including following step:

(1) reading data f (x, y) output by the thermal imaging sensor and relative humidity Rh output by a humidity sensor by the processor;

(2) setting M ballots, namely box (i) =0, wherein i = 0-M-1, and the temperature range corresponding to box (i) is i ℃, wherein M is the number of the ballots and is determined according to the ambient temperature range;

(3) traversing all points (x, y) in f (x, y), if INT (f (x, y)) = i, box (i) = box (i) +1, where INT () is a rounding function;

(4) the maximum value of the search box Box (i) is corresponding to the serial number i_maxThus, the ambient temperature t = i is obtained_max℃；

(5) Calculating the sensible temperature t_A=1.07*t+1.221*Rh*-2.7。

Technical Field

The invention relates to a method for acquiring indoor environment sensible temperature based on thermal imaging data, and belongs to the technical field of household appliance control.

Background

The air conditioner is used for adjusting the indoor temperature of people and enabling people to live more comfortably. Comfort requires not only a suitable temperature but also a suitable humidity. However, the current air conditioner adopts temperature control. The air conditioner controller measures the temperature signal of the return air position of the evaporator, and then automatically controls the start and stop of the compressor to adjust the room temperature after comparing the temperature signal with the set temperature. The first of these measures is that the real ambient temperature cannot be detected. Because the air conditioner is generally installed at an included angle between the roof and the wall, an air circulation is easily formed between the air conditioner air outlet and the air return opening, and the measured temperature of the air conditioner air return opening is the temperature of cold air or hot air at the air conditioner air outlet after the air circulation. Secondly, the control effect achieved by simply using the temperature as a control parameter has a certain difference with the comfortable feeling of the human body.

The comfortable feeling of a human body can be measured by the sensible temperature, the influence of the temperature, the humidity and the wind speed needs to be considered for the sensible temperature, the sensible temperature is lower when the relative humidity is smaller and the wind speed is higher, and the influence of the wind speed can be ignored in the indoor environment. Therefore, better control effect can be obtained by adopting the sensible temperature as the control parameter of the air conditioner. Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the method for acquiring the sensible temperature of the indoor environment based on the thermal imaging data, the body temperature is used as a control parameter, and the comfort of the air conditioner in adjusting the temperature is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows:

temperature acquisition method is felt to indoor environment body based on thermal imaging data, including infrared window, the humidity transducer of setting on air conditioner casing and installing the air conditioner controlling means inside the air conditioner and the treater that carries out centralized control, infrared window set up optical lens at the back, optical lens set up thermal imaging sensor at the back, thermal imaging sensor output data be f (X, Y), wherein X =1~ X, Y =1~ Y, X is the row maximum value, Y is listed as the maximum value, thermal imaging sensor, humidity transducer and air conditioner controlling means with the treater connect, the inside temperature acquisition method that feels that sets up of treater, the temperature acquisition method that feels including following step:

(1) reading data f (x, y) output by the thermal imaging sensor and relative humidity Rh output by a humidity sensor by the processor;

(2) setting M ballots, namely box (i) =0, wherein i = 0-M-1, and the temperature range corresponding to box (i) is i ℃, wherein M is the number of the ballots and is determined according to the ambient temperature range;

(3) traversing all points (x, y) in f (x, y), if INT (f (x, y)) = i, box (i) = box (i) +1, where INT () is a rounding function;

(4) the maximum value of the search box Box (i) is corresponding to the serial number i_maxThus, the ambient temperature t = i is obtained_max℃；

(5) Calculating the sensible temperature t_A=1.07*t+1.221*Rh*-2.7。

The invention has the following beneficial effects: (1) real environment temperature data can be obtained by adopting an infrared thermal imaging technology; (2) and factors of the environmental temperature and the humidity are comprehensively considered, the body temperature is taken as a control parameter, and the comfort of the air conditioner for adjusting the temperature is improved.

Drawings

FIG. 1 is an external view of the air conditioner of the present invention;

fig. 2 is a flowchart of a body-sensory temperature acquisition method.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to fig. 1-2, the method for acquiring the indoor environment sensible temperature based on thermal imaging data comprises an infrared window arranged on an air conditioner shell 1, a humidity sensor 3, an air conditioner control device arranged inside an air conditioner and a processor for performing centralized control, wherein an optical lens is arranged behind the infrared window 2, a thermal imaging sensor is arranged behind the optical lens, and the thermal imaging sensor outputs data of f (x, y), wherein x = 1-M, y = 1-N, M is a row maximum value, and N is a column maximum value. Specifically MLX90640 from Melexis may be used, with 32 x 24 pixels, i.e. 768 temperature measurement points.

The thermal imaging sensor is connected with the processor, and the processor can read imaging data f (x, y) for processing and analysis. Meanwhile, the processor is connected with the humidity sensor 3 and can read the relative humidity data of the environment. The processor is connected with the air conditioner control device and can carry out refrigeration or heating work according to the environmental temperature value.

The processor is internally provided with a body sensing temperature acquisition method, and the body sensing temperature acquisition method comprises the following steps:

(1) reading data f (x, y) output by the thermal imaging sensor and relative humidity Rh output by a humidity sensor by the processor;

the data is read in a fixed cycle, and the cycle of more than 1 second can be set because the environmental parameter changes slowly.

(2) Setting M ballots, namely box (i) =0, wherein i = 0-M-1, and the temperature range corresponding to box (i) is i ℃, wherein M is the number of the ballots and is determined according to the ambient temperature range;

each ticket box corresponds to the temperature domain of the ticket box, and is used for collecting data in the temperature range and providing statistical information for data processing.

(3) Traverse all points (x, y) in f (x, y), if INT (f (x, y)) = i, box (i) = box (i) + 1;

step (3) is a voting process, and X × Y points in the data f (X, Y) are thrown into box (i) according to temperature values. Wherein, INT () is a rounding function, which is an operation of directly removing a fractional part and retaining an integer part.

(4) The maximum value of the search box Box (i) is corresponding to the serial number i_maxThus, the ambient temperature t = i is obtained_max℃；

Step (4) is a ticket counting process, and the Box (i) with the most tickets is counted_max) So as to obtain an ambient temperature t = i_max℃。

(5) Calculating the sensible temperature t_A=1.07*t+1.221*Rh*-2.7。

Under the condition of ignoring wind speed, calculating the sensible temperature t according to the ambient temperature and the relative humidity_A。