A high-speed railway air-conditioning air volume adjustment method and adjustment system based on the number and distribution of passengers

A technology for high-speed railways and the number of passengers. It is applied to railway car body parts, railway vehicle heating/cooling, and non-variable pumps. long-distance, energy waste and other issues, to achieve the effect of improving energy utilization and reducing energy waste

Active Publication Date: 2021-10-26
BEIHANG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

When the number of people in the car increases or decreases, because the speed of the air-conditioning fan and condensing fan cannot be adjusted in time according to the number of people in the car, the air supply volume and return air volume are too far from the actual required air volume.
When the number of people in the car is small, but the fan speed is still high, it will cause waste of energy

Method used

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  • A high-speed railway air-conditioning air volume adjustment method and adjustment system based on the number and distribution of passengers
  • A high-speed railway air-conditioning air volume adjustment method and adjustment system based on the number and distribution of passengers
  • A high-speed railway air-conditioning air volume adjustment method and adjustment system based on the number and distribution of passengers

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] The present invention is based on the air volume adjustment method of the high-speed railway air conditioner based on the number and distribution of passengers, such as figure 1 Said, achieved through the following steps:

[0025] Step 1: Obtain image data in the compartment in real time.

[0026] Step 2: Process the image data in the compartment obtained in step 1 to obtain the required real-time air volume data in the compartment.

[0027] Firstly, the python program is used for image processing. Since the camera is always fixed relative to the compartment and the seat of the compartment, several image blocks can be obtained by segmenting the image according to the seat, and face recognition processing is performed on each image block to obtain the inside of the compartment. Real-time passenger distribution data, and further statistics to get the r...

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Abstract

A high-speed railway air-conditioning air volume adjustment method and adjustment system based on the number and distribution of passengers. First, the image data in the compartment is obtained in real time through a security camera, and the on-board computer processes it to obtain the required real-time air volume data in the compartment. Then, the on-board PLC calculates the fan power frequency analog signal based on the air volume data and the characteristics of the fan and condensing fan in the car; finally, by setting the frequency converter for the fan and condensing fan, it receives the fan power frequency analog signal and controls the fan frequency. . According to the actual situation of the number of people in the car, the invention can adjust the speed of the fan accordingly to achieve the purpose of adjusting the air volume. At the same time, the fan works under the frequency conversion control mode, which can reduce energy waste and improve energy utilization.

Description

technical field [0001] The invention relates to the field of high-speed railway air-conditioning systems, and relates to a high-speed railway air-conditioning air volume adjustment method and an adjustment system based on the number and distribution of passengers. Background technique [0002] The high-speed railway air-conditioning system is an important part of the train to keep the air environment comfortable in the train compartment. phase asynchronous motor. The compressor performs frequency conversion and speed regulation through the temperature sensor to adapt to the required cooling capacity in the compartment and maintain the interior temperature of the compartment basically unchanged. At the same time, a certain amount of external fresh air is inhaled through the fresh air outlet, and a corresponding amount of indoor air is discharged from the exhaust port to achieve the purpose of gas exchange between the interior of the compartment and the outside world. When t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D27/00F04D27/00
CPCB61D27/00B61D27/0018F04D27/001F04D27/004
Inventor 凌志滔张佳楠张辉李家兴
Owner BEIHANG UNIV
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