CN114680849B - Method for evaluating indoor personnel thermal comfort based on multi-level specific physiological indexes - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000035487 diastolic blood pressure Effects 0.000 claims abstract description 46
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- 210000004243 sweat Anatomy 0.000 claims abstract description 16
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- 210000000707 wrist Anatomy 0.000 claims description 9
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- 230000001121 heart beat frequency Effects 0.000 claims description 5
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- 238000012935 Averaging Methods 0.000 description 2
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
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Abstract
The invention discloses a method for evaluating the thermal comfort of indoor personnel based on multilayer specific physiological indexes, which comprises the following steps: 1) Acquiring indoor personnel information; 2) Measuring to obtain systolic pressure and diastolic pressure; 3) Dividing the indoor thermal environment into thermal environment types I-III according to the magnitude of systolic pressure and diastolic pressure; 4) When the thermal environment is of the type I, evaluating the thermal comfort of the indoor environment through the heart rate variability parameter; when the indoor thermal environment is of a thermal environment type II, evaluating the thermal comfort of the indoor environment through the skin temperature and the temperature change condition caused by sweat; when the indoor thermal environment is the thermal environment type III, the thermal comfort of the indoor environment is evaluated by the sensory nerve conduction velocity parameter. The invention does not depend on subjective feeling of testers completely, and simultaneously avoids the problem of insufficient measurement precision caused by instability of a single physiological parameter under different thermal environments, thereby greatly improving the overall prediction precision.
Description
Technical Field
The invention relates to the technical field of indoor environment assessment, in particular to a method for assessing indoor personnel thermal comfort based on multilevel specific physiological indexes.
Background
The method for evaluating the human thermal comfort level mainly comprises a subjective evaluation method, namely, the thermal feeling and the thermal comfort level of people are directly inquired in a thermal comfort questionnaire form, and the relationship between the thermal feeling and the indoor environment parameter is obtained through regression fitting of the thermal feeling and the indoor environment parameter, so that the comfortable indoor environment parameter range is calculated, and the design of the indoor environment parameter is guided.
With the development of sensor technology, a thermal sensation prediction method based in part on human physiological parameters is proposed, for example, based on skin temperature, heart rate and the like, but the existing method for predicting human thermal sensation based on physiological parameters is based on a simple combination of a few physiological parameters such as skin temperature, heart rate and the like, a method for comprehensively predicting by combining deep physiological parameters of a human body is lacking, the measurement level of the physiological parameters is single, errors are easy to generate, and the accuracy of the single physiological parameter under different thermal environment levels is unstable.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to solve the technical problems that: how to provide a method for evaluating the thermal comfort of indoor personnel based on multi-level specific physiological indexes, which does not depend on subjective feeling of testers completely, and meanwhile, avoids the problem of insufficient measurement precision caused by unstable single physiological parameters in different thermal environments, and greatly improves the overall prediction precision.
In order to solve the technical problems, the invention adopts the following technical scheme:
the method for evaluating the thermal comfort of indoor personnel based on the multi-level specific physiological indexes comprises the following steps:
Step 1) acquiring indoor personnel information;
Step 2) measuring the blood pressure of indoor personnel to obtain systolic pressure and diastolic pressure;
Step 3) dividing the indoor thermal environment into a thermal environment type I, a thermal environment type II and a thermal environment type III according to the systolic pressure and the diastolic pressure measured in the step 2);
Step 4) when the indoor thermal environment is of a thermal environment type I, evaluating the thermal comfort of the indoor environment through heart rate variability parameters of indoor personnel;
when the indoor thermal environment is of a thermal environment type II, evaluating the thermal comfort of the indoor environment through the skin temperature of indoor personnel and the temperature change condition caused by sweat;
When the indoor thermal environment is the thermal environment type III, the thermal comfort of the indoor environment is evaluated by the sensory nerve conduction velocity parameter of the indoor person.
When the indoor thermal environment is evaluated, the indoor thermal environment is divided into three types according to the measured diastolic pressure and systolic pressure of the indoor personnel, and different physiological index parameters of the personnel are adopted for evaluation aiming at different indoor thermal environment types, so that the problem that the prediction accuracy of a certain single physiological parameter is different in different thermal environment ranges is solved, the integral prediction accuracy is greatly improved, meanwhile, the physiological index parameters of the personnel collected by the scheme can better reflect the thermal comfort state of a human body, and the evaluation of the indoor thermal comfort by the scheme is not completely dependent on subjective feeling of the personnel through the collection of the parameters, so that the evaluation is more objective and accurate.
Preferably, in step 1), the indoor personnel information is acquired including age a, weight W and height H.
Therefore, the requirements of people of different ages, weights and heights on the indoor thermal environment are not completely consistent, and the scheme can provide data support for the evaluation of the indoor thermal environment in the subsequent steps by collecting the information, so that the evaluation of the indoor thermal environment is more accurate.
Preferably, in step 2), the indoor personnel measure the systolic pressure and the diastolic pressure once every T1 time, the measurement times are not less than 2 times, the systolic pressure obtained by each measurement is averaged to obtain an average systolic pressure BPs, and the diastolic pressure obtained by each measurement is averaged to obtain an average diastolic pressure BPd;
in step 3), the indoor thermal environment is classified into a thermal environment type I, a thermal environment type II, and a thermal environment type III according to the average systolic pressure BPs and the average diastolic pressure BPd in step 2).
Therefore, the average diastolic pressure BPd and the average systolic pressure BPs of indoor personnel can be accurately reflected in the comfort condition of the indoor personnel in the indoor thermal environment by measuring the diastolic pressure and the systolic pressure of the indoor personnel at specific intervals and utilizing the average diastolic pressure BPd and the average systolic pressure BPs as the basis for dividing the indoor thermal environment and averaging through multiple measurements.
Preferably, in step 3), the average diastolic blood pressure BPd and the average systolic blood pressure BPs are determined;
When the average diastolic blood pressure BPd is larger than a first set value and the average systolic blood pressure BPs is smaller than a second set value, the indoor thermal environment is of a thermal environment type I;
When the average diastolic blood pressure BPd is smaller than the third set value and the average systolic blood pressure BPs is larger than the fourth set value, the indoor thermal environment is of a thermal environment type II;
in other cases, the indoor thermal environment is thermal environment type III.
In this way, the indoor thermal environment is classified according to the magnitude of the average diastolic blood pressure BPd and the average systolic blood pressure BPs, so that the evaluation of the indoor thermal environment is more accurate.
Preferably, in step 3), when the average diastolic pressure BPd > bpd1+x1 and the average systolic pressure BPs < bps1+y1, the indoor thermal environment is of thermal environment type I;
when the average diastolic blood pressure BPd is less than BPd1-X2 and the average systolic blood pressure BPs is more than BPs1-Y2, the indoor thermal environment is of a thermal environment type II;
In other cases, the indoor thermal environment is thermal environment type III;
Wherein,
Wherein, BPd0 and BPs0 are reference values;
a1, a2, b1, b2, c1, c2 are constants less than 1;
X1, Y1, X2, Y2 are constants.
Preferably, in step 4), when the indoor thermal environment is of the thermal environment type I, the heart rate variability parameter HRV is obtained by calculating the heart rate frequency of the indoor person by using the electrocardiograph to monitor the heart rate frequency data of the indoor person, and the thermal comfort of the indoor environment is evaluated by using the heart rate variability parameter HRV.
Preferably, in step 4), when the indoor thermal environment is of thermal environment type I, the thermal comfort of the indoor environment is evaluated by using the heart rate variability parameter HRV;
when HRV > HRV0, evaluating the indoor as uncomfortable environment;
when HRV is less than or equal to HRV0, evaluating that the room is a comfortable thermal environment;
wherein, HRV0 is a default real value, and the value range is 100-200.
Preferably, in step 4), when the indoor thermal environment is the thermal environment type II, a resistive dew point hygrometer is used to measure whether the skin has humidity change caused by sweat, and a thermocouple is used to measure the skin temperature Tskin of the indoor personnel;
when the resistance dew point hygrometer measures humidity change caused by sweat at the skin, the indoor is judged to be an uncomfortable environment;
when the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is more than Tskin1, the indoor is judged to be an uncomfortable environment;
When the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is less than or equal to Tskin1, the indoor is judged to be a comfortable thermal environment;
wherein, tskin1 presets default real value, and Tskin1 is more than 30 ℃.
Preferably, in step 4), when the indoor thermal environment is the thermal environment type III, applying electrical stimulation to the indoor personnel by using the detection electrode to obtain a sensory nerve conduction velocity parameter SCV of the indoor personnel, and calculating an average thermal sensation value TSV according to the sensory nerve conduction velocity parameter SCV:
TSV＝d*SCV+e
wherein d and e are constants;
when-0.5 < TSV <0.5, judging that the room is a comfortable thermal environment;
when TSV is more than or equal to 0.5 or TSV is less than or equal to-0.5, the indoor environment is judged to be uncomfortable.
Preferably, in step 4), when the indoor thermal environment is the thermal environment type III, the sensory nerve conduction velocity parameter SCV of the indoor person is obtained by adopting a forward detection or reverse detection method;
The forward detection method comprises the following steps: placing the detection electrode at the thumb or index finger position of the indoor personnel and applying electric stimulation, and then recording the generated stimulation signals on the palm, wrist, elbow or armpit of the indoor personnel;
The reverse detection method comprises the following steps: the detection electrode is placed at the palm and wrist position of the indoor personnel and electric stimulation is applied, and then the generated stimulation signals are recorded at the finger tips of the indoor personnel.
Compared with the prior art, the invention has the following advantages:
1. The human physiological index is adopted to evaluate the thermal comfort, so that the evaluation result is not completely dependent on subjective judgment of a subject, and is more objective and accurate.
2. The method predicts by adopting corresponding physiological indexes under different thermal environments, avoids the problem that a certain index has different prediction precision in different ranges, improves the whole prediction precision, and thus, the evaluation method has wider application range.
Drawings
FIG. 1 is a flow chart of a method for evaluating the thermal comfort of indoor personnel based on multi-level specific physiological indexes according to the present invention;
fig. 2 is a graph showing the relationship between the average thermal sensation value TSV and the sensory nerve conduction velocity SCV in the first embodiment.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1, the method for evaluating the thermal comfort of indoor personnel based on multi-level specific physiological indexes comprises the following steps:
Step 1) acquiring indoor personnel information;
Step 2) measuring the blood pressure of indoor personnel to obtain systolic pressure and diastolic pressure;
Step 3) dividing the indoor thermal environment into a thermal environment type I, a thermal environment type II and a thermal environment type III according to the systolic pressure and the diastolic pressure measured in the step 2);
Step 4) when the indoor thermal environment is of a thermal environment type I, evaluating the thermal comfort of the indoor environment through heart rate variability parameters of indoor personnel;
when the indoor thermal environment is of a thermal environment type II, evaluating the thermal comfort of the indoor environment through the skin temperature of indoor personnel and the temperature change condition caused by sweat;
When the indoor thermal environment is the thermal environment type III, the thermal comfort of the indoor environment is evaluated by the sensory nerve conduction velocity parameter of the indoor person.
When the indoor thermal environment is evaluated, the indoor thermal environment is divided into three types according to the measured diastolic pressure and systolic pressure of the indoor personnel, and different physiological index parameters of the personnel are adopted for evaluation aiming at different indoor thermal environment types, so that the problem that the prediction accuracy of a certain single physiological parameter is different in different thermal environment ranges is solved, the integral prediction accuracy is greatly improved, meanwhile, the physiological index parameters of the personnel collected by the scheme can better reflect the thermal comfort state of a human body, and the evaluation of the indoor thermal comfort by the scheme is not completely dependent on subjective feeling of the personnel through the collection of the parameters, so that the evaluation is more objective and accurate.
In this embodiment, in step 1), the information of the indoor person including the age a, the weight W, and the height H is acquired.
Therefore, the requirements of people of different ages, weights and heights on the indoor thermal environment are not completely consistent, and the scheme can provide data support for the evaluation of the indoor thermal environment in the subsequent steps by collecting the information, so that the evaluation of the indoor thermal environment is more accurate.
In the embodiment, in step 2), the indoor personnel measure the systolic pressure and the diastolic pressure once every T1 time, the measurement times are not less than 2 times, the systolic pressure obtained by each measurement is averaged to obtain an average systolic pressure BPs, and the diastolic pressure obtained by each measurement is averaged to obtain an average diastolic pressure BPd;
in step 3), the indoor thermal environment is classified into a thermal environment type I, a thermal environment type II, and a thermal environment type III according to the average systolic pressure BPs and the average diastolic pressure BPd in step 2).
Therefore, the average diastolic pressure BPd and the average systolic pressure BPs of indoor personnel can be accurately reflected in the comfort condition of the indoor personnel in the indoor thermal environment by measuring the diastolic pressure and the systolic pressure of the indoor personnel at specific intervals and utilizing the average diastolic pressure BPd and the average systolic pressure BPs as the basis for dividing the indoor thermal environment and averaging through multiple measurements.
In the present embodiment, in step 3), the magnitude of the average diastolic blood pressure BPd and the average systolic blood pressure BPs is determined;
When the average diastolic blood pressure BPd is larger than a first set value and the average systolic blood pressure BPs is smaller than a second set value, the indoor thermal environment is of a thermal environment type I;
When the average diastolic blood pressure BPd is smaller than the third set value and the average systolic blood pressure BPs is larger than the fourth set value, the indoor thermal environment is of a thermal environment type II;
in other cases, the indoor thermal environment is thermal environment type III.
In this way, the indoor thermal environment is classified according to the magnitude of the average diastolic blood pressure BPd and the average systolic blood pressure BPs, so that the evaluation of the indoor thermal environment is more accurate.
In this embodiment, in step 3), when the average diastolic pressure BPd > bpd1+x1 and the average systolic pressure BPs < bps1+y1, the indoor thermal environment is of the thermal environment type I;
when the average diastolic blood pressure BPd is less than BPd1-X2 and the average systolic blood pressure BPs is more than BPs1-Y2, the indoor thermal environment is of a thermal environment type II;
In other cases, the indoor thermal environment is thermal environment type III;
Wherein,
Wherein, BPd0 and BPs0 are reference values;
a1, a2, b1, b2, c1, c2 are constants less than 1;
X1, Y1, X2, Y2 are constants.
In the embodiment, in step 4), when the indoor thermal environment is of the thermal environment type I, monitoring heartbeat frequency data of indoor personnel by using an electrocardiograph, calculating the heartbeat frequency of the indoor personnel to obtain a heart rate variability parameter HRV, and evaluating the thermal comfort of the indoor environment by using the heart rate variability parameter HRV; specifically, after heart beat frequency data of indoor personnel are monitored by using an electrocardiograph, an electrocardio analog signal is input into a PowerLab data acquisition system, and then an HRV analysis module is used for analyzing and calculating the HRV frequency.
In the present embodiment, in step 4), when the indoor thermal environment is of the thermal environment type I, the thermal comfort of the indoor environment is evaluated by using the heart rate variability parameter HRV;
when HRV > HRV0, evaluating the indoor as uncomfortable environment;
when HRV is less than or equal to HRV0, evaluating that the room is a comfortable thermal environment;
wherein, HRV0 is a default real value, and the value range is 100-200.
In the embodiment, in step 4), when the indoor thermal environment is the thermal environment type II, a resistance dew point hygrometer is used to measure whether the skin has humidity change caused by sweat, and a thermocouple is used to measure the skin temperature Tskin of the indoor personnel; specifically, when the skin temperature Tskin of an indoor person is measured, the skin of a plurality of parts of a human body is tested by utilizing a copper-constantan thermocouple, and the average skin temperature of the human body is obtained by weighting and summing;
when the resistance dew point hygrometer measures humidity change caused by sweat at the skin, the indoor is judged to be an uncomfortable environment;
when the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is more than Tskin1, the indoor is judged to be an uncomfortable environment;
When the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is less than or equal to Tskin1, the indoor is judged to be a comfortable thermal environment;
wherein, tskin1 presets default real value, and Tskin1 is more than 30 ℃.
In the present embodiment, in step 4), when the indoor thermal environment is the thermal environment type III, the sensing electrode is used to apply the electrical stimulus to the indoor personnel to obtain the sensory nerve conduction velocity parameter SCV of the indoor personnel, and the average thermal sensation value TSV is calculated according to the sensory nerve conduction velocity parameter SCV:
TSV＝d*SCV+e
wherein d and e are constants;
when-0.5 < TSV <0.5, judging that the room is a comfortable thermal environment;
when TSV is more than or equal to 0.5 or TSV is less than or equal to-0.5, the indoor environment is judged to be uncomfortable.
In the embodiment, in step 4), when the indoor thermal environment is the thermal environment type III, a forward detection or reverse detection method is adopted to obtain a sensory nerve conduction velocity parameter SCV of the indoor personnel;
The forward detection method comprises the following steps: placing the detection electrode at the thumb or index finger position of the indoor personnel and applying electric stimulation, and then recording the generated stimulation signals on the palm, wrist, elbow or armpit of the indoor personnel;
the reverse detection method comprises the following steps: placing a detection electrode at the palm and wrist position of an indoor person, applying electric stimulation, and recording a generated stimulation signal at the finger end of the indoor person;
Compared with the prior art, the invention has the following advantages: the human physiological index is adopted to evaluate the thermal comfort, so that the evaluation result is not completely dependent on subjective judgment of a subject, and is more objective and accurate. The method predicts by adopting corresponding physiological indexes under different thermal environments, avoids the problem that a certain index has different prediction precision in different ranges, improves the whole prediction precision, and thus, the evaluation method has wider application range.
Embodiment one: the following description will take a specific example:
step 1) inputting user information, wherein the age is 24 years, the height is 178cm, and the weight is 75kg;
Step 2) measuring blood pressure of indoor personnel, wherein the diastolic blood pressure BPd is 80mmHg and the systolic blood pressure BPs is 120mmHg;
step 3) bpd0=75 mmHg, bps0=115 mmHg; a=0.4; b=0.02; c=0.1, x1=3, y1=5, x2=3, y2=5;
Then bmi=23.7, bpd=80 > bpd1+x1=76; bps=120 > bps1+y1=117
Judging that the indoor environment belongs to the thermal environment type III;
Step 4) judging the average thermal sensation value TSV by adopting an SCV index, wherein d=0.065 is set as shown in the figure 2; e= 3.149 of the total number of the components,
By adopting a reverse detection method, a stimulating electrode is placed at the palm and wrist, a median nerve is stimulated above a wrist crease line generally between a palmar tendon and a radial wrist flexor tendon, a stimulating signal is recorded in a thumb, an index finger or a middle finger by using a ring electrode, the value of SCV is measured to be 50m/s, and according to a calculation formula of an average thermal sensation value, TSV=0.065×50-3.149 =0.101 at the moment;
-0.5< tsv=0.101 <0.5, which can be judged as a comfortable thermal environment.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the present invention, and all such modifications and equivalents are included in the scope of the claims.
Claims (7)
1. The method for evaluating the thermal comfort of indoor personnel based on the multi-level specific physiological indexes is characterized by comprising the following steps of:
Step 1) acquiring indoor personnel information;
Step 2) measuring the blood pressure of indoor personnel to obtain systolic pressure and diastolic pressure;
Step 3) dividing the indoor thermal environment into a thermal environment type I, a thermal environment type II and a thermal environment type III according to the systolic pressure and the diastolic pressure measured in the step 2);
Step 4) when the indoor thermal environment is of a thermal environment type I, evaluating the thermal comfort of the indoor environment through heart rate variability parameters of indoor personnel;
when the indoor thermal environment is of a thermal environment type II, evaluating the thermal comfort of the indoor environment through the skin temperature of indoor personnel and the temperature change condition caused by sweat;
When the indoor thermal environment is of a thermal environment type III, evaluating the thermal comfort of the indoor environment through the sensory nerve conduction speed parameter of indoor personnel;
In the step 2), the indoor personnel are measured with the systolic pressure and the diastolic pressure at intervals of T1 time, the measurement times are not less than 2 times, the average systolic pressure BPs is obtained by taking the average value of the systolic pressure obtained by each measurement, and the average diastolic pressure BPd is obtained by taking the average value of the diastolic pressure obtained by each measurement;
In step 3), the indoor thermal environment is classified into a thermal environment type I, a thermal environment type II and a thermal environment type III according to the average systolic pressure BPs and the average diastolic pressure BPd in step 2);
In the step 3), judging the average diastolic blood pressure BPd and the average systolic blood pressure BPs;
When the average diastolic blood pressure BPd is larger than a first set value and the average systolic blood pressure BPs is smaller than a second set value, the indoor thermal environment is of a thermal environment type I;
When the average diastolic blood pressure BPd is smaller than the third set value and the average systolic blood pressure BPs is larger than the fourth set value, the indoor thermal environment is of a thermal environment type II;
In other cases, the indoor thermal environment is thermal environment type III;
In step 3), when the average diastolic blood pressure BPd > bpd1+x1 and the average systolic blood pressure BPs < bps1+y1, the indoor thermal environment is of the thermal environment type I;
when the average diastolic blood pressure BPd is less than BPd1-X2 and the average systolic blood pressure BPs is more than BPs1-Y2, the indoor thermal environment is of a thermal environment type II;
In other cases, the indoor thermal environment is thermal environment type III;
Wherein,
Wherein, BPd0 and BPs0 are reference values;
a1, a2, b1, b2, c1, c2 are constants less than 1;
X1, Y1, X2, Y2 are constants.
2. The method for evaluating the thermal comfort of an indoor person based on multi-level specific physiological criteria according to claim 1, wherein in step 1), the indoor person information is obtained including age a, weight W and height H.
3. The method for evaluating the thermal comfort of indoor personnel based on the multilevel specific physiological indexes according to claim 1, wherein in the step 4), when the indoor thermal environment is of the thermal environment type I, the heart beat frequency data of the indoor personnel are monitored by using an electrocardiograph, the heart rate variability parameter HRV is obtained by calculating the heart beat frequency of the indoor personnel, and the thermal comfort of the indoor environment is evaluated by using the heart rate variability parameter HRV.
4. The method for evaluating the thermal comfort of indoor personnel based on multi-level specific physiological indexes according to claim 3, wherein in the step 4), when the indoor thermal environment is of a thermal environment type I, the thermal comfort of the indoor environment is evaluated by using a heart rate variability parameter HRV;
when HRV > HRV0, evaluating the indoor as uncomfortable environment;
when HRV is less than or equal to HRV0, evaluating that the room is a comfortable thermal environment;
wherein, HRV0 is a default real value, and the value range is 100-200.
5. The method for evaluating the thermal comfort of an indoor person based on the multilayer specific physiological index according to claim 1, wherein in the step 4), when the indoor thermal environment is the thermal environment type II, a resistance dew point hygrometer is adopted to measure whether the skin has humidity change caused by sweat, and a thermocouple is adopted to measure the skin temperature Tskin of the indoor person;
when the resistance dew point hygrometer measures humidity change caused by sweat at the skin, the indoor is judged to be an uncomfortable environment;
when the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is more than Tskin1, the indoor is judged to be an uncomfortable environment;
When the resistance dew point hygrometer does not measure humidity change caused by sweat at the skin and Tskin is less than or equal to Tskin1, the indoor is judged to be a comfortable thermal environment;
wherein, tskin1 presets default real value, and Tskin1 is more than 30 ℃.
6. The method for evaluating the thermal comfort of an indoor person based on multi-level specific physiological indexes according to claim 1, wherein in the step 4), when the indoor thermal environment is the thermal environment type III, the detection electrode is used to apply the electrical stimulus to the indoor person to obtain the sensory nerve conduction velocity parameter SCV of the indoor person, and the average thermal sensation value TSV is calculated according to the sensory nerve conduction velocity parameter SCV:
TSV＝d*SCV+e
wherein d and e are constants;
when-0.5 < TSV <0.5, judging that the room is a comfortable thermal environment;
when TSV is more than or equal to 0.5 or TSV is less than or equal to-0.5, the indoor environment is judged to be uncomfortable.
7. The method for evaluating the thermal comfort of indoor personnel based on the multi-level specific physiological index according to claim 6, wherein in the step 4), when the indoor thermal environment is the thermal environment type III, the method of forward detection or reverse detection is adopted to obtain the sensory nerve conduction velocity parameter SCV of the indoor personnel;
The forward detection method comprises the following steps: placing the detection electrode at the thumb or index finger position of the indoor personnel and applying electric stimulation, and then recording the generated stimulation signals on the palm, wrist, elbow or armpit of the indoor personnel;
The reverse detection method comprises the following steps: the detection electrode is placed at the palm and wrist position of the indoor personnel and electric stimulation is applied, and then the generated stimulation signals are recorded at the finger tips of the indoor personnel.
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