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Measurement path planning method for evaluating urban outdoor thermal comfort

A measurement path and thermal comfort technology, which is applied in the field of measurement path planning to evaluate urban outdoor thermal comfort, can solve the problems of low measurement accuracy of outdoor thermal environment, achieve the effect of improving display effect, ensuring accuracy, and reducing the risk of danger

Pending Publication Date: 2022-01-07
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a measurement path planning method for evaluating urban outdoor thermal comfort, in order to solve the problem in the prior art that the measurement accuracy of the outdoor thermal environment is low when the number and arrangement of sensors are limited. The mobile measurement of the thermal environment provides a scientific and reasonable means of path planning to improve the accuracy and efficiency of the measurement

Method used

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  • Measurement path planning method for evaluating urban outdoor thermal comfort
  • Measurement path planning method for evaluating urban outdoor thermal comfort
  • Measurement path planning method for evaluating urban outdoor thermal comfort

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like figure 1 A measurement path planning method for evaluating urban outdoor thermal comfort is shown, including the following steps:

[0057] S1. Select a representative space in the area to be measured as the measuring point space, and obtain the outdoor thermal environment data of the measuring point space.

[0058] The representative space needs to consider both the universal / general spatial location and the particular / abnormal spatial location in the area to be tested.

[0059] Outdoor thermal environment data can be obtained through actual measurement and / or numerical simulation.

[0060] Outdoor thermal environment data include: air temperature, relative humidity, black bulb temperature, and wind speed.

[0061] S2. Calculate the physiological equivalent temperature based on the outdoor thermal environment data:

[0062] Calculate the average radiation temperature MRT of each measuring point space at different measurement times:

[0063]

[0064] In the f...

Embodiment 2

[0080] like figure 2 As shown in the measurement path planning method for evaluating urban outdoor thermal comfort, this embodiment takes the street thermal environment measurement of JX slope in Chongqing as an example to illustrate the method.

[0081] Step 1: Data Acquisition

[0082] Select a representative space in the site as the measuring point to measure the outdoor thermal environment, including air temperature (T a ), relative humidity (Rh), black bulb temperature (T g ), wind speed (v), and the time interval of data collection (determined according to the point change time).

[0083] In this embodiment, a total of six measuring points from A to G are set on the JX slope. The following table shows part of the data collected from 8:00 to 19:30 at the interval of half an hour at the B measuring point.

[0084] Table 1 Part of the measurement data of B measuring point

[0085]

[0086] Step 2: Analysis and calculation

[0087] (1) Construct the battery pack of ...

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Abstract

The invention discloses a measurement path planning method for evaluating urban outdoor thermal comfort. The method comprises the steps: selecting a representative space in a to-be-measured region as a measurement point space, and obtaining the outdoor thermal environment data of the measurement point space; calculating a physiological equivalent temperature based on the outdoor thermal environment data; calculating the average value of the physiological equivalent temperature of each measuring point space at different measuring moments; calculating the accuracy of the physiological equivalent temperature of each measuring point space at each moment; establishing an optimization platform about the accuracy of measuring point space, time and physiological equivalent temperature; calculating all continuous paths giving consideration to all moments in the optimization platform; and selecting a measurement path based on the number of the measurement point spaces. The method is used for solving the problem that in the prior art, under the condition that the number and arrangement of sensors are limited, the measurement accuracy of the outdoor thermal environment is low, and the purposes that a scientific and reasonable path planning means is provided for mobile measurement of the outdoor thermal environment, and the measurement accuracy and the measurement efficiency are improved are achieved.

Description

technical field [0001] The invention relates to the field of urban thermal environment evaluation, in particular to a measurement path planning method for evaluating urban outdoor thermal comfort. Background technique [0002] With the development of global climate change, high temperature heat waves and urban heat island effect are becoming more and more serious, which have caused great negative impacts on the environment, economy, society and other aspects. In particular, the hazards to human health are becoming increasingly serious. High temperature has become one of the deadliest weather-related disasters in many countries. Extreme high temperature will increase morbidity and mortality. The hot weather makes the outdoor thermal environment extremely uncomfortable, and people's risk of outdoor activities increases, and it is easy to cause cardiovascular disease, respiratory disease, mental illness and other diseases. Under the ever-growing trend of global warming and urb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06F17/18
CPCG06Q10/047G06Q10/06393G06F17/18
Inventor 何宝杰熊珂董鑫
Owner CHONGQING UNIV
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