A train oxygen production control method, device, equipment and readable storage medium

Abstract

The present invention discloses a train oxygen production control method, device, equipment and readable storage medium, which belongs to the field of rail vehicles and is used to control the oxygen production system on rail vehicles. Taking into account that at low altitudes, some oxygen concentrator compressors in the train oxygen production system are sufficient to meet the current oxygen production needs, the present application can determine the corresponding passenger compartment oxygen concentration control requirements according to the real-time altitude of the train, and calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirements, and then determine the target input number of oxygen concentrator compressors according to the compressed air volume and the displacement of the oxygen concentrator compressors, and finally control the target input number of oxygen concentrator compressors to work, which can reduce the number of oxygen concentrator compressors put into work in places with low altitudes, thereby saving energy and reducing costs on the basis of meeting the oxygen production needs.

Description

Technical Field

[0001] The present invention relates to the field of rail vehicles, and in particular to a train oxygen production control method. The present invention also relates to a train oxygen production control device, equipment, and computer-readable storage medium. Background Art

[0002] Because some railways pass through high-altitude sections, rail vehicles operating on such railways need to be equipped with oxygen production systems. The design and configuration of passenger compartment oxygen production systems are generally based on the highest altitude of the operating section. Considering that the oxygen production requirements at different altitudes vary, it is necessary to control the oxygen production system during train operation to produce oxygen that meets the requirements. However, the existing technology lacks a mature control method for train oxygen production systems, resulting in excessive oxygen production, which not only wastes energy but also increases costs.

[0003] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve at present. Summary of the Invention

[0004] An object of the present invention is to provide a train oxygen production control method, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting oxygen production needs; another object of the present invention is to provide a train oxygen production control device, equipment and computer-readable storage medium, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting oxygen production needs.

[0005] In order to solve the above technical problems, the present invention provides a train oxygen production control method, comprising:

[0006] Based on the preset correspondence between altitude and oxygen concentration, the passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude is determined;

[0007] Calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirements;

[0008] Determining a target number of oxygen concentrator compressors to be invested based on the compressed air volume and a preset oxygen concentrator compressor displacement;

[0009] The target number of oxygen concentrator compressors in the oxygen production system is controlled to operate so as to produce oxygen.

[0010] Preferably, the amount of compressed air required by the oxygen production system is calculated according to the passenger compartment oxygen concentration control requirement as follows:

[0011] Get the current number of passengers on the train and the real-time air pressure outside the train;

[0012] The amount of compressed air required by the oxygen production system is calculated according to the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement.

[0013] Preferably, the amount of compressed air required by the oxygen production system is calculated according to the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement as follows:

[0014]

[0015]

[0016] Among them, Q 计 is the calculated value of the amount of compressed air required by the oxygen production system, Ny is the passenger compartment oxygen concentration control requirement, Nx is the oxygen concentration of the fresh air, Q' x is the maximum fresh air demand for a single person, N is the current number of passengers, Q' x The product of P and N is the fresh air volume, Qz is the oxygen production volume, the product of the ratio of P to P0 and Qz is the standard rated oxygen production volume Qh required at different altitudes, and the product of Qh and m is the theoretical value Q of the compressed air volume required by the oxygen production system. 理 , Q 理 The product of Q and K is 计 , P is the real-time air pressure, m is the preset oxygen concentrator gas consumption ratio, K is the compressed air coefficient safety factor, Nz is the oxygen concentration in the oxygen-enriched gas, and P0 is the standard atmospheric pressure.

[0017] Preferably, after controlling the target number of oxygen concentrator compressors in the oxygen production system to operate, the train oxygen production control method further comprises:

[0018] According to the difference between the real-time passenger compartment oxygen concentration and the target oxygen concentration, the operating oxygen concentrator compressor is controlled so as to adjust the real-time passenger compartment oxygen concentration to the target oxygen concentration through the exhaust volume of the oxygen concentrator compressor.

[0019] Preferably, the passenger compartment oxygen concentration control requirement corresponding to the real-time altitude of the train is determined based on the preset correspondence between altitude and oxygen concentration as follows:

[0020] Get the kilometer mark information of the train;

[0021] According to the preset correspondence between kilometer marker information and altitude, the altitude corresponding to the kilometer marker information is determined and used as the real-time altitude;

[0022] The passenger compartment oxygen concentration control requirement corresponding to the real-time altitude is determined according to a preset correspondence between the altitude and the oxygen concentration.

[0023] Preferably, the method of obtaining the kilometer mark information of the train operation is as follows:

[0024] Determine whether the kilometer mark information of train operation can be monitored normally;

[0025] If yes, then obtain the kilometer mark information of the train;

[0026] If not, obtain the real-time air pressure outside the train;

[0027] The train oxygen production control method further includes:

[0028] According to the preset correspondence between air pressure and altitude, the altitude corresponding to the real-time air pressure is determined and used as the real-time altitude.

[0029] Preferably, the determining of the altitude corresponding to the kilometer marker information and using it as the real-time altitude based on the preset correspondence between the kilometer marker information and the altitude is specifically as follows:

[0030] Determining the station corresponding to the kilometer marker information according to the kilometer marker corresponding to each station;

[0031] According to the preset correspondence between the site and the altitude, the altitude corresponding to the site is determined and used as the real-time altitude.

[0032] In order to solve the above technical problems, the present invention also provides a train oxygen production control device, comprising:

[0033] A first determination module is configured to determine a passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude based on a preset correspondence between altitude and oxygen concentration;

[0034] a calculation module, configured to calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirement;

[0035] A second determining module is configured to determine a target number of oxygen concentrator compressors to be deployed based on the compressed air volume and a preset oxygen concentrator compressor displacement;

[0036] The control module is used to control the target number of oxygen concentrator compressors in the oxygen production system to operate so as to produce oxygen.

[0037] In order to solve the above technical problems, the present invention also provides a train oxygen production control device, comprising:

[0038] Memory for storing computer programs;

[0039] The processor is used to implement the steps of the above-mentioned train oxygen production control method when executing the computer program.

[0040] In order to solve the above technical problems, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned train oxygen production control method are implemented.

[0041] The present invention provides a train oxygen production control method. Considering that at low altitudes, some oxygen concentrator compressors in the train oxygen production system are sufficient to meet the current oxygen production demand, the present application can determine the corresponding passenger compartment oxygen concentration control requirement according to the real-time altitude of the train, and calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirement, and then determine the target number of oxygen concentrator compressors according to the compressed air volume and the displacement of the oxygen concentrator compressors. Finally, the target number of oxygen concentrator compressors is controlled to work, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting the oxygen production demand.

[0042] The present invention also provides a train oxygen production control device, equipment and computer-readable storage medium, which have the same beneficial effects as the above train oxygen production control method. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the prior art and the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 A schematic flow chart of a train oxygen production control method provided by the present invention;

[0045] Figure 2 This is a structural diagram of a train oxygen production control system provided by the present invention;

[0046] Figure 3 This is a structural schematic diagram of a train oxygen production control device provided by the present invention;

[0047] Figure 4 This is a structural schematic diagram of a train oxygen production control device provided by the present invention. DETAILED DESCRIPTION

[0048] The core of the present invention is to provide a train oxygen production control method, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting oxygen production needs; another core of the present invention is to provide a train oxygen production control device, equipment and computer-readable storage medium, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting oxygen production needs.

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0050] Please refer to Figure 1 , Figure 1 This is a flow chart of a train oxygen production control method provided by the present invention, which includes:

[0051] S101: Determining a passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude based on a preset correspondence between altitude and oxygen concentration;

[0052] Specifically, taking into account the technical problems in the above background technology, and considering that the train oxygen production system usually includes multiple oxygen concentrator compressors, all of which can compress air, and in the case of low altitude, the air compression capacity provided by some of the oxygen concentrator compressors in the train oxygen production system is sufficient to meet the current oxygen production demand. Therefore, the present application intends to adaptively adjust the number of oxygen concentrator compressors put into operation according to changes in altitude, so as to achieve the effect of reducing energy consumption, saving energy and reducing the impact on the train power supply system.

[0053] Among them, as the altitude increases, the oxygen concentration requirement will also increase, that is, there is a corresponding relationship between the altitude and the required oxygen concentration. Therefore, in this step, the passenger compartment oxygen concentration control requirement corresponding to the real-time altitude of the train can be determined based on the preset corresponding relationship between altitude and oxygen concentration, and this can be used as the data basis for subsequent steps.

[0054] The relationship between altitude and oxygen concentration can be pre-set. For example, according to TB / T3216-2009, "Oxygen Supply System for Plateau Railway Passenger Cars," the designed oxygen concentration in the car is 23.5% at an altitude of 4,000 meters, and should reach 25% at 5,000 meters. According to GB / T 35414-2017, "Requirements for Diffuse Oxygen Supply (Oxygen Conditioning) in Indoor Spaces in Plateau Areas," for long-term dormitories or Class B offices, the oxygen concentration is 23.4%-24.7% at an altitude of 3,500 meters, and 23.9%-25.5% at an altitude of 5,000 meters. See Table 1 for details.

[0055] Table 1

[0056]

[0057]

[0058] S102: Calculate the amount of compressed air required by the oxygen generation system based on the passenger compartment oxygen concentration control requirement;

[0059] Specifically, the amount of compressed air currently required by the oxygen production system is directly related to the passenger compartment oxygen concentration control requirement. Therefore, in order to ultimately determine the number of oxygen concentrator compressors that need to be put into operation, in the embodiment of the present invention, the amount of compressed air required by the oxygen production system can be first calculated based on the passenger compartment oxygen concentration control requirement, and this amount can be used as the data basis for subsequent steps.

[0060] S103: Determining a target number of oxygen concentrator compressors to be deployed based on the compressed air volume and a preset oxygen concentrator compressor displacement;

[0061] Specifically, considering that different types of oxygen concentrator compressors have different displacements, the corresponding compressed air capacities are also different. Therefore, in order to determine the target number of oxygen concentrator compressors, it is also necessary to combine the oxygen concentrator compressor displacement. Therefore, in this step, the target number of oxygen concentrator compressors can be determined based on the compressed air volume and the preset oxygen concentrator compressor displacement, and it can be used as the data basis for subsequent steps.

[0062] Specifically, the value obtained by rounding up the ratio of the compressed air volume to the preset oxygen concentrator compressor displacement can be used as the target input quantity, which can minimize the quantity while meeting the air compression capacity.

[0063] Of course, in addition to the above calculation method, the target number of oxygen concentrator compressors to be input may be determined according to the compressed air volume and the preset oxygen concentrator compressor displacement in other specific ways, which are not limited in the embodiment of the present invention.

[0064] S104: Controlling the target number of oxygen concentrator compressors in the oxygen production system to operate so as to produce oxygen.

[0065] Specifically, after the target input quantity is determined, the target input quantity of oxygen concentrator compressors in the oxygen production system can be controlled to operate, so as to produce oxygen based on the compressed air of the currently operating oxygen concentrator compressors.

[0066] Among them, controlling the operation of the target number of oxygen concentrator compressors in the oxygen production system can be specifically as follows: when the number of currently running oxygen concentrator compressors is greater than the target number, some of the oxygen concentrator compressors can be controlled to stop running, so that the target number of oxygen concentrator compressors are working; and when the number of currently running oxygen concentrator compressors is less than the target number, some of the oxygen concentrator compressors can be additionally controlled to be put into operation, so that the target number of oxygen concentrator compressors are working.

[0067] It is also worth mentioning that since the present application reduces the number of oxygen concentrator compressors put into operation, during the startup of the oxygen concentrator, since the number of oxygen concentrator compressors put into operation is small, it can avoid the phenomenon of exceeding the column supply output capacity or causing column supply output voltage oscillation due to excessive load.

[0068] Specifically, in order to reduce the design cost of the train power supply system of the diesel-electric dual-source train, the train to which this method is applicable adopts one oxygen production system and two oxygen production power supply methods. When in the high-altitude diesel section, such as the Golmud to Lhasa section of the Qinghai-Tibet Railway, the corresponding diesel train power supply cabinet is put into operation. When in the low-altitude power section, such as the Xining to Golmud section of the Qinghai-Tibet Railway, the corresponding electric train power supply cabinet is put into operation. The train to which this method is applicable adopts the same oxygen production system. The altitude-adaptive oxygen production system control method is used to reduce the demand on the electric train power supply system, thereby reducing the design cost of the electric train power supply system. This method is also applicable to other similar line applications.

[0069] The present invention provides a train oxygen production control method. Considering that at low altitudes, some oxygen concentrator compressors in the train oxygen production system are sufficient to meet the current oxygen production demand, the present application can determine the corresponding passenger compartment oxygen concentration control requirement according to the real-time altitude of the train, and calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirement, and then determine the target number of oxygen concentrator compressors according to the compressed air volume and the displacement of the oxygen concentrator compressors. Finally, the target number of oxygen concentrator compressors is controlled to work, which can reduce the number of oxygen concentrator compressors put into operation at low altitudes, thereby saving energy and reducing costs on the basis of meeting the oxygen production demand.

[0070] To better illustrate the embodiments of the present invention, please refer to Figure 2 , Figure 2 This is a structural diagram of a train oxygen production control system provided by the present invention, based on the above embodiment:

[0071] As a preferred embodiment, the amount of compressed air required by the oxygen production system is calculated according to the passenger compartment oxygen concentration control requirement as follows:

[0072] Get the current number of passengers on the train and the real-time air pressure outside the train;

[0073] The amount of compressed air required by the oxygen production system is calculated based on the current number of passengers, real-time air pressure, and passenger compartment oxygen concentration control requirements.

[0074] Specifically, considering that the amount of compressed air required by the oxygen production system is not only related to the passenger compartment oxygen concentration control requirement, but also related to the current number of passengers on the train and the real-time air pressure outside the train, the embodiment of the present invention can first obtain the current number of passengers on the train and the real-time air pressure outside the train, and then calculate the amount of compressed air required by the oxygen production system based on the current number of passengers, the real-time air pressure and the passenger compartment oxygen concentration control requirement, thereby quickly calculating the accurate amount of compressed air for subsequent calculations.

[0075] Among them, reference Figure 2 It can be seen that the real-time air pressure can be obtained through the external pressure detection device. Specifically, the average of the real-time air pressures detected by the two external pressures can be used as the real-time air pressure, which is conducive to improving the accuracy of the results. The current number of passengers can be obtained through the seat display system. In addition, the present application can be applied to the oxygen concentrator controller.

[0076] Specifically, in Figure 2 In the process, the oxygen generator compressor unit can be turned on / off by controlling the on / off of the oxygen generator compressor contactor.

[0077] As a preferred embodiment, the amount of compressed air required by the oxygen production system is calculated based on the current number of passengers, real-time air pressure, and passenger compartment oxygen concentration control requirements as follows:

[0078]

[0079]

[0080] Among them, Q 计 is the calculated value of the amount of compressed air required by the oxygen production system, Ny is the passenger compartment oxygen concentration control requirement, Nx is the oxygen concentration of the fresh air, Q' x is the maximum fresh air demand for a single person, N is the current number of passengers, Q' x The product of P and N is the fresh air volume, Qz is the oxygen production volume, the product of the ratio of P to P0 and Qz is the standard rated oxygen production volume Qh required at different altitudes, and the product of Qh and m is the theoretical value Q of the compressed air volume required by the oxygen production system. 理 , Q 理 The product of Q and K is 计, P is the real-time air pressure, m is the preset oxygen concentrator gas consumption ratio, K is the compressed air coefficient safety factor, Nz is the oxygen concentration in the oxygen-enriched air, and P0 is the standard atmospheric pressure.

[0081] Among them, Nx can be 21%, Nz can be selected independently between 35% and 45%, K can be 1.1, and it is assumed that the temperature remains constant.

[0082] Specifically, the specific formula listed in the embodiment of the present invention can be used to calculate a more accurate amount of compressed air required by the oxygen production system, wherein the K value can be set independently, and the embodiment of the present invention is not limited here.

[0083] Of course, in addition to this specific formula, the amount of compressed air required by the oxygen production system can be calculated based on the current number of passengers, real-time air pressure, and passenger compartment oxygen concentration control requirements in other forms, which are not limited in this embodiment of the present invention.

[0084] As a preferred embodiment, after controlling the target number of oxygen concentrator compressors in the oxygen production system to operate, the train oxygen production control method further includes:

[0085] Based on the difference between the real-time passenger compartment oxygen concentration and the target oxygen concentration, the working oxygen concentrator compressor is controlled so that the real-time passenger compartment oxygen concentration is adjusted to the target oxygen concentration through the exhaust volume of the oxygen concentrator compressor.

[0086] Specifically, considering that after the number of oxygen concentrator compressors put into operation is controlled to reach the target input number, the oxygen concentrator compressors still need to be precisely controlled so that the real-time passenger room oxygen concentration reaches the target oxygen concentration, the embodiment of the present invention can also control the working oxygen concentrator compressor according to the difference between the real-time passenger room oxygen concentration and the target oxygen concentration, so as to adjust the real-time passenger room oxygen concentration to the target oxygen concentration through the exhaust volume of the oxygen concentrator compressor. Specifically, the output voltage and frequency of the auxiliary inverter of the oxygen concentrator compressor can be controlled to adjust the exhaust volume of the oxygen concentrator compressor, thereby adjusting the real-time passenger room oxygen concentration to the target oxygen concentration.

[0087] As a preferred embodiment, based on the preset correspondence between altitude and oxygen concentration, the passenger compartment oxygen concentration control requirement corresponding to the real-time altitude of the train is determined as follows:

[0088] Get the kilometer mark information of the train;

[0089] According to the preset correspondence between kilometer mark information and altitude, the altitude corresponding to the kilometer mark information is determined and used as the real-time altitude;

[0090] Based on the preset correspondence between altitude and oxygen concentration, the passenger compartment oxygen concentration control requirement corresponding to the real-time altitude is determined.

[0091] Specifically, considering that the kilometer mark information of the train operation has a stable and accurate correspondence with the altitude, the embodiment of the present invention can determine the altitude corresponding to the kilometer mark information of the train operation according to the preset correspondence between the kilometer mark information and the altitude and use it as the real-time altitude, which is conducive to improving the accuracy of the oxygen production system control.

[0092] Of course, in addition to this method, the real-time altitude of the train can also be obtained by other methods, which are not limited in this embodiment of the present invention.

[0093] As a preferred embodiment, obtaining the kilometer mark information of the train operation is specifically as follows:

[0094] Determine whether the kilometer mark information of train operation can be monitored normally;

[0095] If yes, then obtain the kilometer mark information of the train;

[0096] If not, obtain the real-time air pressure outside the train;

[0097] The train oxygen production control method further includes:

[0098] According to the preset correspondence between air pressure and altitude, the altitude corresponding to the real-time air pressure is determined and used as the real-time altitude.

[0099] Specifically, in order to prevent a single altitude measurement method from failing due to malfunction or other reasons, a redundant altitude measurement method is also provided in an embodiment of the present invention. When the kilometer marker information is valid, the current real-time altitude can be calculated based on the kilometer marker information first. When the kilometer marker information cannot be obtained, the redundant altitude measurement system can be enabled to perform real-time altitude measurement. Specifically, according to the preset correspondence between air pressure and altitude, the altitude corresponding to the real-time air pressure outside the train is determined and used as the real-time altitude, thereby improving the stability of altitude measurement.

[0100] Of course, in addition to this specific type, the redundant altitude measurement system may also be of many other types, which is not limited in the embodiment of the present invention.

[0101] As a preferred embodiment, according to the preset correspondence between kilometer marker information and altitude, the altitude corresponding to the kilometer marker information is determined and used as the real-time altitude. Specifically:

[0102] According to the kilometer marks corresponding to each station, determine the station corresponding to the kilometer mark information;

[0103] Based on the preset correspondence between the site and the altitude, the altitude corresponding to the site is determined and used as the real-time altitude.

[0104] Specifically, considering that each railway station has a more accurate and reliable correspondence with the altitude, the embodiment of the present invention can determine the station corresponding to the kilometer mark information based on the kilometer mark corresponding to each station, and then determine the altitude corresponding to the station based on the preset correspondence between the station and the altitude and use it as the real-time altitude, thereby improving the accuracy of the real-time altitude.

[0105] Of course, in addition to this specific method, according to the preset correspondence between kilometer marker information and altitude, determining the altitude corresponding to the kilometer marker information and using it as the real-time altitude can also be in other forms, which are not limited in this embodiment of the present invention.

[0106] Please refer to Figure 3 , Figure 3 This is a structural diagram of a train oxygen production control device provided by the present invention, which includes:

[0107] A first determining module 31 is configured to determine a passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude based on a preset correspondence between altitude and oxygen concentration;

[0108] A calculation module 32 is used to calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirement;

[0109] The second determining module 33 is used to determine the target number of oxygen concentrator compressors to be deployed based on the compressed air volume and the preset oxygen concentrator compressor displacement;

[0110] The control module 34 is used to control the target number of oxygen concentrator compressors in the oxygen production system to operate so as to produce oxygen.

[0111] For an introduction to the train oxygen production control device provided in an embodiment of the present invention, please refer to the aforementioned embodiment of the train oxygen production control method, and the embodiment of the present invention will not be described in detail here.

[0112] Please refer to Figure 4 , Figure 4 This is a structural diagram of a train oxygen production control device provided by the present invention, which includes:

[0113] Memory for storing computer programs;

[0114] The processor is used to implement the steps of the train oxygen production control method in the aforementioned embodiment when executing the computer program.

[0115] For an introduction to the train oxygen production control device provided in an embodiment of the present invention, please refer to the aforementioned embodiment of the train oxygen production control method, and the embodiment of the present invention will not be described in detail here.

[0116] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the train oxygen production control method in the aforementioned embodiment are implemented.

[0117] For an introduction to the computer-readable storage medium provided in an embodiment of the present invention, please refer to the aforementioned embodiment of the train oxygen production control method, and the embodiment of the present invention will not be described in detail here.

[0118] In this specification, the various embodiments are described in a progressive manner, with each embodiment focusing on the differences from the other embodiments. Similar or identical parts between the various embodiments may be referred to in conjunction with each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and for relevant parts, reference may be made to the method description. It should also be noted that, in this specification, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or device comprising that element.

[0119] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A train oxygen production control method, characterized in that: include: Based on the preset correspondence between altitude and oxygen concentration, the passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude is determined; Calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirements; Determining a target number of oxygen concentrator compressors to be invested based on the compressed air volume and a preset oxygen concentrator compressor displacement; Controlling the target number of oxygen concentrator compressors in the oxygen production system to operate so as to produce oxygen; The amount of compressed air required by the oxygen production system is calculated according to the passenger compartment oxygen concentration control requirement as follows: Get the current number of passengers on the train and the real-time air pressure outside the train; Calculating the amount of compressed air required by the oxygen production system according to the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement; Furthermore, the amount of compressed air required by the oxygen generation system is calculated based on the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement as follows: ； ； in, is the calculated value of the amount of compressed air required by the oxygen production system, Ny is the passenger compartment oxygen concentration control requirement, Nx is the oxygen concentration of the fresh air, is the maximum fresh air demand for a single person, N is the current number of passengers, The product of N is the fresh air volume , Qz is the oxygen production capacity, the product of the ratio of P to P0 and Qz is the standard rated oxygen production capacity Qh required at different altitudes, and the product of Qh and m is the theoretical value of the compressed air volume required by the oxygen production system , The product of K is , P is the real-time air pressure, m is the preset oxygen concentrator gas consumption ratio, K is the compressed air coefficient safety factor, Nz is the oxygen concentration in the oxygen-enriched gas, and P0 is the standard atmospheric pressure.

2. The train oxygen production control method according to claim 1, characterized in that: After controlling the target number of oxygen concentrator compressors in the oxygen production system to operate, the train oxygen production control method further includes: The oxygen concentrator compressor is controlled according to the difference between the real-time passenger compartment oxygen concentration and the target oxygen concentration, so as to adjust the real-time passenger compartment oxygen concentration to the target oxygen concentration through the exhaust volume of the oxygen concentrator compressor.

3. The train oxygen production control method according to claim 1 or 2, characterized in that: The passenger compartment oxygen concentration control requirement corresponding to the real-time altitude of the train is determined based on the preset correspondence between altitude and oxygen concentration as follows: Get the kilometer mark information of the train; According to the preset correspondence between kilometer marker information and altitude, the altitude corresponding to the kilometer marker information is determined and used as the real-time altitude; The passenger compartment oxygen concentration control requirement corresponding to the real-time altitude is determined according to a preset correspondence between the altitude and the oxygen concentration.

4. The train oxygen production control method according to claim 3, characterized in that: The specific method of obtaining the kilometer mark information of the train operation is as follows: Determine whether the kilometer mark information of train operation can be monitored normally; If yes, then obtain the kilometer mark information of the train; If not, obtain the real-time air pressure outside the train; The train oxygen production control method further includes: According to the preset correspondence between air pressure and altitude, the altitude corresponding to the real-time air pressure is determined and used as the real-time altitude.

5. The train oxygen production control method according to claim 3, characterized in that: The method of determining the altitude corresponding to the kilometer marker information and using it as the real-time altitude based on the preset correspondence between the kilometer marker information and the altitude is as follows: Determining the station corresponding to the kilometer marker information according to the kilometer marker corresponding to each station; According to the preset correspondence between the site and the altitude, the altitude corresponding to the site is determined and used as the real-time altitude.

6. A train oxygen production control device, characterized in that: include: A first determination module is configured to determine a passenger compartment oxygen concentration control requirement corresponding to the train's real-time altitude based on a preset correspondence between altitude and oxygen concentration; a calculation module, configured to calculate the amount of compressed air required by the oxygen production system according to the passenger compartment oxygen concentration control requirement; A second determining module is configured to determine a target number of oxygen concentrator compressors to be deployed based on the compressed air volume and a preset oxygen concentrator compressor displacement; a control module, configured to control the target number of oxygen concentrator compressors in the oxygen production system to operate so as to produce oxygen; The calculation module is specifically used for: Get the current number of passengers on the train and the real-time air pressure outside the train; Calculating the amount of compressed air required by the oxygen production system according to the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement; Furthermore, the calculation module calculates the amount of compressed air required by the oxygen production system according to the current number of passengers, the real-time air pressure, and the passenger compartment oxygen concentration control requirement as follows: ； ； in, is the calculated value of the amount of compressed air required by the oxygen production system, Ny is the passenger compartment oxygen concentration control requirement, Nx is the oxygen concentration of the fresh air, is the maximum fresh air demand for a single person, N is the current number of passengers, The product of N is the fresh air volume , Qz is the oxygen production capacity, the product of the ratio of P to P0 and Qz is the standard rated oxygen production capacity Qh required at different altitudes, and the product of Qh and m is the theoretical value of the compressed air volume required by the oxygen production system , The product of K is , P is the real-time air pressure, m is the preset oxygen concentrator gas consumption ratio, K is the compressed air coefficient safety factor, Nz is the oxygen concentration in the oxygen-enriched gas, and P0 is the standard atmospheric pressure.

7. A train oxygen production control device, characterized in that: include: Memory for storing computer programs; A processor, configured to implement the steps of the train oxygen production control method according to any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the train oxygen production control method according to any one of claims 1 to 5.

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