Vehicle peculiar smell part tracing method and device, storage medium and computer equipment

Abstract

The invention discloses a vehicle peculiar smell component tracing method and device, a storage medium and computer equipment. The method comprises the steps that multiple smell substances in air in a compartment of a to-be-detected railway vehicle are obtained, the smell substances are volatile organic compounds, the in-compartment smell activity value of each smell substance is calculated, and multiple typical smell substances are determined; a to-be-detected railway vehicle compartment is composed of multiple part materials, each part material releases at least one odor substance, the typical odor association degree is calculated based on the in-compartment odor activity value and the material source odor activity value of each typical odor substance released by the part materials, and the typical odor association degree is calculated based on the in-compartment odor activity value and the material source odor activity value of the typical odor substances released by the part materials. The method is used for determining peculiar smell source parts in a to-be-detected railway vehicle compartment. The key smelly components are screened by calculating the correlation degree between the component materials and the typical smelly substances in the compartment, and the source tracing of the smelly substances in the compartment can be quickly realized without manual smelly identification.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method and device for tracing the source of odorous parts of a vehicle, a storage medium, and a computer device. Background Art

[0002] In recent years, rail transit has gradually become the preferred means of travel for people. With the continuous improvement of public awareness of environmental protection and self-protection, people are increasingly concerned about the environmental protection issues of rail vehicles, especially the problem of odor inside the vehicle. During the construction process of rail vehicles, a large number of internal non-metallic parts and chemical raw materials are used, which will continuously release odor substances into the car. These substances will stimulate people's olfactory organs and cause discomfort to organs such as the eyes and nose.

[0003] At present, the traceability of vehicle odorous parts mainly relies on the subjective odor evaluation of professional odor inspectors or the matching analysis based on odor activity values. The subjective odor evaluation requires high professional ability and experience of the odor inspectors, has a large workload, and endangers the physical and mental health of personnel. Summary of the invention

[0004] In view of this, the present application provides a method and device for tracing the source of vehicle odorous components, a storage medium, and a computer device, which obtains a variety of odorous substances in the air in the compartment of the rail vehicle to be tested. The odorous substances are volatile organic compounds, and the in-compartment odor activity value of each odorous substance is calculated, and a variety of typical odorous substances are determined; the rail vehicle compartment to be tested is composed of a variety of component materials, and each component material releases at least one odorous substance. Based on the in-compartment odor activity value of each typical odorous substance released by the component material and the source odor activity value, the typical odor correlation is calculated to determine the odor source component in the compartment of the rail vehicle to be tested. By calculating the correlation between the component material and the typical odorous substances in the compartment to screen key odorous components, the odorous substances in the compartment can be quickly traced without manual smell identification.

[0005] According to one aspect of the present application, a method for tracing the source of odorous parts of a vehicle is provided, the method comprising:

[0006] Acquire multiple odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, the rail vehicle compartment to be tested is composed of multiple component materials, and each component material releases at least one odor substance;

[0007] Calculating the in-carriage odor activity value of each odor substance in the in-carriage air of the rail vehicle to be tested, and determining, among the multiple odor substances, multiple typical odor substances in the in-carriage air of the rail vehicle to be tested based on the respective in-carriage odor activity values ​​of each odor substance;

[0008] For any target component material whose released odor substances include any typical odor substance, any one of the typical odor substances released by the target component material is selected, and the source odor activity value of the selected typical odor substance released by the target component material is calculated; based on the cabin odor activity value and the source odor activity value of each typical odor substance released by the target component material, the typical odor correlation degree of the target component material is calculated;

[0009] Based on the typical odor correlation of each target component material, the odor source components in the rail vehicle compartment to be tested are determined.

[0010] Optionally, the calculating the typical odor correlation of the target component material based on the cabin odor activity value of each typical odor substance released by the target component material and the source odor activity value includes:

[0011] Based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the odor activity value in the cabin, the typical odor correlation of the target component material is calculated, wherein the typical odor correlation calculation formula is:

[0012]

[0013] P j is the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

[0014] Optionally, the calculating of the cabin odor activity value of each odor substance in the air in the cabin of the railway vehicle to be tested includes:

[0015] For any odor substance, the odor activity value of the odor substance in the air in the compartment of the rail vehicle to be tested is calculated according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold corresponding to the odor substance, wherein the calculation formula of the odor activity value in the compartment is:

[0016]

[0017] D i,车厢 is the odor activity value of the i-th odor substance in the compartment, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, CT i is the preset olfactory threshold of the i-th odor substance.

[0018] Optionally, the calculating the source odor activity value of the target component material releasing the selected typical odor substance comprises:

[0019] According to the calculation formula of the material source odor activity value, the theoretical content of the selected typical odor substance in the compartment of the railway vehicle to be tested, and the preset olfactory threshold corresponding to the selected typical odor substance, the material source odor activity value of the selected typical odor substance released by the target component material is calculated, wherein the calculation formula of the material source odor activity value is:

[0020]

[0021] D i,典型，j is the source odor activity value of the i-th typical odor substance released by the j-th target component material, C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, CT i,典型 is the preset olfactory threshold of the i-th typical odor substance.

[0022] Optionally, before calculating the source odor activity value of the selected typical odor substance released by the target component material according to the source odor activity value calculation formula, the theoretical content of the selected typical odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold value corresponding to the selected typical odor substance, the method further includes:

[0023] According to the calculation formula for the theoretical content in the compartment, the theoretical content of the selected typical odor substances in the compartment of the rail vehicle to be tested is calculated, wherein the calculation formula for the theoretical content in the compartment is:

[0024]

[0025] C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, C i,典型，j,袋 V is the content of the i-th typical odor substance tested by the bag method for the j-th component material, j,袋 is the gas volume of the jth component material during the bag test, S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 is the amount of component materials used for bag method testing, k is the total number of component materials containing the i-th typical odor substance in the tested rail vehicle compartment, C i,典型，车厢 is the content of the i-th typical odor substance in the rail vehicle compartment to be tested.

[0026] Optionally, the method of determining, among the plurality of odor substances, a plurality of typical odor substances in the air in the compartment of the railway vehicle to be tested based on the respective compartment odor activity values ​​of the odor substances, includes:

[0027] Among the odor activity values ​​corresponding to multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to a preset odor activity threshold is determined as a typical odor substance, wherein, when the typical odor substance is one, an updated odor activity threshold is determined based on the preset odor activity threshold, and multiple typical odor substances are determined based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

[0028] Optionally, the step of determining the odor source components in the rail vehicle compartment to be tested based on the typical odor correlation of each target component material includes:

[0029] Sorting the typical odor correlation of each target component material in numerical order, and determining the odor component material based on the sorting result;

[0030] Based on the component to which the odor component material belongs, the odor source component in the railway vehicle compartment to be tested is determined.

[0031] According to another aspect of the present application, a vehicle odor component tracing device is provided, the device comprising:

[0032] An odor substance determination module is used to obtain a plurality of odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, and the rail vehicle compartment to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance;

[0033] A typical odor determination module is used to calculate the cabin odor activity value of each odor substance in the cabin air of the railway vehicle to be tested, and determine a plurality of typical odor substances in the cabin air of the railway vehicle to be tested based on the cabin odor activity value of each odor substance among a plurality of odor substances;

[0034] An odor correlation calculation module is used for selecting any one of the typical odor substances released by any target component material including any typical odor substance in the released odor substances, calculating the source odor activity value of the selected typical odor substance released by the target component material, and calculating the typical odor correlation of the target component material based on the cabin odor activity value and source odor activity value of each typical odor substance released by the target component material;

[0035] The odor component traceability module is used to determine the odor source components in the railway vehicle compartment to be tested based on the typical odor correlation of each target component material.

[0036] Optionally, the odor association degree calculation module is further used to:

[0037] Based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the odor activity value in the cabin, the typical odor correlation of the target component material is calculated, wherein the typical odor correlation calculation formula is:

[0038]

[0039] P j is the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

[0040] Optionally, the device further comprises: an odor activity calculation module, configured to:

[0041] For any odor substance, the odor activity value of the odor substance in the air in the compartment of the rail vehicle to be tested is calculated according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold corresponding to the odor substance, wherein the calculation formula of the odor activity value in the compartment is:

[0042]

[0043] D i,车厢 is the odor activity value of the i-th odor substance in the compartment, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, CT i is the preset olfactory threshold of the i-th odor substance.

[0044] Optionally, the odor activity calculation module is further used to:

[0045] According to the calculation formula of the material source odor activity value, the theoretical content of the selected typical odor substance in the compartment of the railway vehicle to be tested, and the preset olfactory threshold corresponding to the selected typical odor substance, the material source odor activity value of the selected typical odor substance released by the target component material is calculated, wherein the calculation formula of the material source odor activity value is:

[0046]

[0047] D i,典型，j is the source odor activity value of the i-th typical odor substance released by the j-th target component material, C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, CT i,典型 is the preset olfactory threshold of the i-th typical odor substance.

[0048] Optionally, the device further comprises: a module for calculating the theoretical content in the compartment, for:

[0049] According to the calculation formula for the theoretical content in the compartment, the theoretical content of the selected typical odor substances in the compartment of the rail vehicle to be tested is calculated, wherein the calculation formula for the theoretical content in the compartment is:

[0050]

[0051] C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, C i,典型，j,袋 V is the content of the i-th typical odor substance tested by the bag method for the j-th component material, j,袋 is the gas volume of the jth component material during the bag test, S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 is the amount of component materials used for bag method testing, k is the total number of component materials containing the i-th typical odor substance in the tested rail vehicle compartment, C i,典型，车厢 is the content of the i-th typical odor substance in the rail vehicle compartment to be tested.

[0052] Optionally, the typical odor determination module is further used to:

[0053] Among the odor activity values ​​corresponding to multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to a preset odor activity threshold is determined as a typical odor substance, wherein, when the typical odor substance is one, an updated odor activity threshold is determined based on the preset odor activity threshold, and multiple typical odor substances are determined based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

[0054] Optionally, the odor component tracing module is further used to:

[0055] Sorting the typical odor correlation of each target component material in numerical order, and determining the odor component material based on the sorting result;

[0056] Based on the component to which the odor component material belongs, the odor source component in the railway vehicle compartment to be tested is determined.

[0057] According to another aspect of the present application, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned vehicle odor component tracing method is implemented.

[0058] According to another aspect of the present application, a computer device is provided, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor implements the above-mentioned vehicle odor component tracing method when executing the program.

[0059] By means of the above technical scheme, the present application provides a vehicle odor component traceability method and device, storage medium, and computer equipment, which obtain a variety of odor substances in the air in the compartment of the rail vehicle to be tested. The odor substances are volatile organic compounds, and the in-compartment odor activity value of each odor substance is calculated, and a variety of typical odor substances are determined; the rail vehicle compartment to be tested is composed of a variety of component materials, and each component material releases at least one odor substance. Based on the in-compartment odor activity value and the source odor activity value of each typical odor substance released by the component material, the typical odor correlation is calculated to determine the odor source component in the compartment of the rail vehicle to be tested. By calculating the correlation between the component material and the typical odor substances in the compartment to screen key odorous components, the odor substances in the compartment can be quickly traced without manual smell identification.

[0060] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0062] Figure 1 A schematic diagram of a process for tracing the source of a vehicle odorous component provided by an embodiment of the present application is shown;

[0063] Figure 2 A schematic diagram showing a process of another method for tracing the source of odorous parts of a vehicle provided in an embodiment of the present application is shown;

[0064] Figure 3 A schematic diagram showing a process of another method for tracing the source of vehicle odorous parts provided in an embodiment of the present application is shown;

[0065] Figure 4 A schematic diagram of the structure of a vehicle odor component tracing device provided in an embodiment of the present application is shown;

[0066] Figure 5 A schematic structural diagram of another vehicle odor component tracing device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0067] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0068] In this embodiment, a method for tracing the source of vehicle odorous parts is provided, such as Figure 1 As shown, the method includes:

[0069] Step 101, obtaining a plurality of odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, and the rail vehicle compartment to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance.

[0070] In the above-mentioned embodiment of the present application, after determining the rail vehicle compartment to be tested that needs to trace the source of the odorous components, the odor substances in the compartment can be detected first, that is, the air in the rail vehicle compartment to be tested is collected, and the volatile organic components and aldehyde and ketone components (volatile organic compounds) in the collected air are quantitatively analyzed, and finally a variety of odor substances in the air in the rail vehicle compartment to be tested are obtained. The rail vehicle compartment to be tested is composed of a variety of component materials, and each component material releases at least one odor substance. Component materials such as floor cloth, body primer, heavy anti-corrosion, floor cloth adhesive, etc. Odor substances such as benzothiazole, n-butanol and styrene. Specifically, Tenax-TA tubes can be used to collect volatile organic components in the rail vehicle compartment to be tested, and DNPH tubes can be used to collect aldehydes and ketones. After the collection is completed, the volatile organic components in the Tenax-TA tube are analyzed by TDS-GC-MS full spectrum, and aldehydes and ketones are analyzed by HPLC.

[0071] Step 102, calculate the cabin odor activity value of each odor substance in the cabin air of the railway vehicle to be tested, and determine a plurality of typical odor substances in the cabin air of the railway vehicle to be tested based on the cabin odor activity value of each odor substance.

[0072] Next, the cabin odor activity value of each odor substance in the cabin air of the rail vehicle to be tested is calculated, and among the multiple odor substances, multiple typical odor substances in the cabin air of the rail vehicle to be tested are determined based on the cabin odor activity value of each odor substance. Specifically, the typical odor substances in the cabin are determined, that is, the odor activity values ​​of each substance in the cabin are calculated based on the odor activity method, and the typical odor substances in the cabin are screened out.

[0073] Step 103, for any target component material whose released odor substances include any typical odor substances, select any one of the typical odor substances released by the target component material, calculate the source odor activity value of the target component material releasing the selected typical odor substance, and calculate the typical odor correlation of the target component material based on the respective in-cabin odor activity values ​​of each typical odor substance released by the target component material and the source odor activity value.

[0074] Next, for any target component material that releases any typical odor substance, for example, odor substance 1, odor substance 2 and odor substance 3 are currently obtained, component material A releases odor substances 1, 2, and 3, component material B releases odor substances 2 and 3, and component material C releases odor substance 1. If odor substances 2 and 3 are typical odor substances, component materials A and component material B are target component materials. Then, any target typical odor substance released by the target component material is selected. For example, for component material A, typical odor substance 2 is selected, and the source odor activity value of the target component material (component material A) releasing the selected typical odor substance 2 is calculated. Finally, based on the respective in-compartment odor activity values ​​and source odor activity values ​​of each typical odor substance (typical odor substances 2 and 3) released by the target component material (component material A), the typical odor correlation of the target component material (component material A) is calculated to prepare for the subsequent tracing of vehicle odor components.

[0075] Step 104, based on the typical odor correlation of each target component material, determine the odor source component in the railway vehicle to be tested.

[0076] Finally, based on the typical odor correlation of each target component material, the odor source components in the rail vehicle compartment to be tested are determined.

[0077] By applying the technical solution of this embodiment, a variety of odor substances in the air in the compartment of the rail vehicle to be tested are obtained. The odor substances are volatile organic compounds. The odor activity value in the compartment of each odor substance is calculated, and a variety of typical odor substances are determined. The rail vehicle compartment to be tested is composed of a variety of component materials, and each component material releases at least one odor substance. Based on the odor activity value in the compartment of each typical odor substance released by the component material and the odor activity value of the source material, the typical odor correlation is calculated to determine the odor source components in the compartment of the rail vehicle to be tested. By calculating the correlation between the component material and the typical odor substances in the compartment to screen key odorous components, the odor substances in the compartment can be quickly traced without manual smelling.

[0078] Further, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, another vehicle odor component tracing method is provided, such as Figure 2 As shown, the method includes:

[0079] Step 201, obtaining a plurality of odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, and the rail vehicle compartment to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance.

[0080] Step 202, for any odor substance, according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold value corresponding to the odor substance, the odor activity value in the compartment of the rail vehicle to be tested is calculated, wherein the calculation formula of the odor activity value in the compartment is:

[0081]

[0082] D i,车厢 is the odor activity value of the i-th odor substance in the compartment, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, CT i is the preset olfactory threshold of the i-th odor substance.

[0083] Step 203: Determine, among the plurality of odor substances, a plurality of typical odor substances in the air in the compartment of the rail vehicle to be tested based on the respective in-compartment odor activity values ​​of the odor substances.

[0084] In the above embodiment of the present application, firstly, a plurality of odor substances in the air in the compartment of the rail vehicle to be tested are obtained, wherein the odor substances are volatile organic compounds, and the compartment of the rail vehicle to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance. Specifically, according to the actual state of each component material when loaded on the vehicle, the non-exposed part is sealed with tin foil, and then a suitable sampling bag is selected for testing according to the size of the sample (component material), and then the volatile organic components in the sampling bag are collected with a Tenax-TA tube, and aldehydes and ketones are collected with a DNPH tube, and then the volatile organic components in the Tenax-TA tube are analyzed with TDS-GC-MS, and the aldehydes and ketones are analyzed with HPLC to obtain a plurality of odor substances. In particular, when using sampling bags to test the rail vehicle compartment to be tested, the main rail transit manufacturers stipulate the sampling bag size, sealing temperature and time required for conventional component material testing. The sampling bags range from 10L to 2000L, and the sampling bags need to be filled with high-purity nitrogen. The amount of high-purity nitrogen is usually half of the volume of the sampling bag. At the same time, the sampling bag needs to be sealed at 25°C for 16 hours after inflation. The rail vehicle compartment to be tested also needs to be sealed before testing. You can choose to seal at 25°C for 12 hours, or you can choose other sealing conditions.

[0085] Next, for any odor substance, the odor activity value of the odor substance in the compartment of the rail vehicle to be tested is calculated according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold value corresponding to the odor substance. Among the multiple odor substances, multiple typical odor substances in the air in the compartment of the rail vehicle to be tested are determined based on the respective odor activity values ​​of the odor substances. In particular, D i,车厢 is the odor activity value of the i-th odor substance in the compartment, dimensionless, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, in mg / m 3 , CT i is the preset odor threshold of the ith odor substance, in mg / m 3 When determining typical odor substances, odor substances with odor activity values ​​≥ 1 in the tested rail vehicle compartment can be listed as typical odor substances in the compartment. For example, the second-class passenger compartment of the rail vehicle and the interior parts and components of the vehicle model are tested and analyzed, the air in the compartment is collected, and the volatile organic components and aldehyde and ketone components in the collected air are quantitatively analyzed. Based on the odor activity method, 14 typical odor substances in the compartment are screened out. Finally, the typical odor substances determined are shown in Table 1:

[0086] Table 1

[0087]

[0088] Step 204, for any target component material whose released odor substances include any typical odor substance, any one of the typical odor substances released by the target component material is selected, and the theoretical content of the selected typical odor substance in the compartment of the rail vehicle to be tested is calculated according to the calculation formula for the theoretical content in the compartment, wherein the calculation formula for the theoretical content in the compartment is:

[0089]

[0090] C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, C i,典型，j,袋 V is the content of the i-th typical odor substance tested by the bag method for the j-th component material, j,袋 is the gas volume of the jth component material during the bag test, S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 is the amount of component materials used for bag method testing, k is the total number of component materials containing the i-th typical odor substance in the tested rail vehicle compartment, C i,典型，车厢 is the content of the i-th typical odor substance in the rail vehicle compartment to be tested.

[0091] Step 205, according to the material source odor activity value calculation formula, the theoretical content of the selected typical odor substance in the compartment of the railway vehicle to be tested, and the preset odor threshold value corresponding to the selected typical odor substance, calculate the material source odor activity value of the target component material releasing the selected typical odor substance, wherein the material source odor activity value calculation formula is:

[0092]

[0093] D i,典型，j is the source odor activity value of the i-th typical odor substance released by the j-th target component material, C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, CT i,典型 is the preset olfactory threshold of the i-th typical odor substance.

[0094] Step 206, based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the cabin odor activity value, the typical odor correlation calculation formula of the target component material is calculated, wherein the typical odor correlation calculation formula is:

[0095]

[0096] P jis the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

[0097] Then, by performing bag test on each component material in the rail vehicle compartment to be tested, the content of various typical odor substances released by each component material can be obtained, and the theoretical content of the typical odor substances released by each component material in the compartment can be calculated. Then, the source odor activity value of each typical odor substance is calculated, and combined with the odor activity value of the typical odor substances released by each component material, the typical odor correlation of the component material can be finally obtained. In particular, C i,典型，j The theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, in mg / m 3 , C i,典型，j,袋 The content of the i-th typical odor substance tested by the bag method for the j-th component material, in mg / m 3 , V j,袋 The air volume of the jth component material during the bag test, in m 3 , S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 The amount of component material used for bag method testing, in the same unit as S j,整车 Keep it consistent. For example, the component material samples currently tested are seats, S j,整车 It is the total number of seats in the car, and S 袋 The number of seats is 1.

[0098] Specifically, the main component materials in the second-class passenger compartment are tested by bag method, and then the theoretical content and odor activity value of each typical odor substance in the compartment are calculated, and the typical odor correlation P between the component materials and the typical odor substances in the compartment is further calculated, and then the P values ​​of each component material are sorted from large to small, and finally the component source of the odor is determined. The P values ​​of each component material are shown in Table 2.

[0099] Table 2

[0100]

[0101]

[0102] Step 207, based on the typical odor correlation of each target component material, determine the odor source component in the railway vehicle to be tested.

[0103] Finally, based on the typical odor correlation of each target component material, the odor source components in the rail vehicle to be tested are determined, for example, the typical odor correlation values ​​of each target component material are sorted from large to small, and the key odor components in the vehicle are determined according to the sorting results. From the sorting results in Table 2, it can be seen that the typical odor correlation P of floor cloth, car body primer, heavy anti-corrosion, floor cloth adhesive, cold-proof material finished products and middle top plate with the typical odor substances in the second-class passenger compartment is the largest, indicating that they are most similar to the odor in the vehicle, so they are listed as the key odor components in the vehicle.

[0104] At present, when using the bag method to test component materials, it is necessary to amplify the amount of typical odor substances in the test component materials according to the amount of the whole vehicle. Since the sample amplification effect is not considered, the current theoretical content C i,典型，j The calculation formula must include the compartment volume parameter, but in the above embodiment of the present application, since the sample magnification effect is taken into account, the compartment volume parameter can be offset, and the final presented compartment theoretical content C i,典型，j The calculation formula does not need to include the volume of the carriage, which is more flexible and can be applied to traceability scenarios where the volume of the carriage is unknown.

[0105] By applying the technical solution of this embodiment, a variety of odor substances in the air in the compartment of the rail vehicle to be tested are obtained, wherein the odor substances are volatile organic compounds, the rail vehicle compartment to be tested is composed of a variety of component materials, each component material releases at least one odor substance, for any odor substance, the odor activity value of the odor substance in the compartment is calculated according to the calculation formula for the odor activity value in the compartment, and based on the odor activity value of each odor substance in the compartment, a variety of typical odor substances in the air in the compartment of the rail vehicle to be tested are determined. For any target component material containing any typical odor substance in the released odor substances, any typical odor substance released by the target component material is selected, and the theoretical content of the selected typical odor substance in the compartment is calculated according to the calculation formula for the theoretical content in the compartment, and the source odor activity value of the selected typical odor substance is calculated according to the calculation formula for the source odor activity value, and the typical odor correlation of the target component material is calculated based on the typical odor correlation calculation formula, and the odor source component in the compartment of the rail vehicle to be tested is determined based on the typical odor correlation of each target component material. Based on objective material analysis, the odor substances in the car compartment are first tested and analyzed to screen out typical odor substances in the car compartment. Then the component materials are tested and analyzed using the bag method. Combined with the actual usage of typical odor substances in the car (the car compartment volume is not required), the odor activity values ​​of the corresponding typical odor substances in each component material are obtained. Finally, the correlation between each component material and the typical odor substances in the car compartment is established, so as to achieve the traceability of key odorous components in the car compartment.

[0106] Further, as a refinement and expansion of the specific implementation of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, another vehicle odor component tracing method is provided, such as Figure 3 As shown, the method includes:

[0107] Step 301, obtaining a plurality of odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, and the rail vehicle compartment to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance.

[0108] Step 302, calculate the cabin odor activity value of each odor substance in the air in the cabin of the rail vehicle to be tested, and among the odor activity values ​​corresponding to the multiple odor substances, determine the odor substance corresponding to the odor activity value greater than or equal to the preset odor activity threshold as a typical odor substance, wherein, when the typical odor substance is one, determine an updated odor activity threshold based on the preset odor activity threshold, and determine multiple typical odor substances based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

[0109] Step 303, for any target component material whose released odor substances include any typical odor substances, select any one of the typical odor substances released by the target component material, calculate the source odor activity value of the target component material releasing the selected typical odor substance, and calculate the typical odor correlation of the target component material based on the cabin odor activity value and source odor activity value of each typical odor substance released by the target component material.

[0110] Step 304: sort the typical odor associations of the target component materials in numerical order, and determine the odor component materials based on the sorting results.

[0111] Step 305, based on the component to which the odor component material belongs, determine the odor source component in the rail vehicle compartment to be tested.

[0112] In the above embodiment of the present application, multiple odor substances in the air in the compartment of the rail vehicle to be tested are obtained, and the compartment odor activity value of each odor substance in the air in the compartment of the rail vehicle to be tested is calculated. Among the odor activity values ​​corresponding to the multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to the preset odor activity threshold is determined as a typical odor substance. For any target component material whose released odor substances contain any typical odor substance, any one of the typical odor substances released by the target component material is selected, and the material source odor activity value of the selected typical odor substance released by the target component material is calculated. Based on the compartment odor activity value and the material source odor activity value of each typical odor substance released by the target component material, the typical odor correlation of the target component material is calculated to determine the odor source component in the compartment of the rail vehicle to be tested. In particular, when a preset odor activity threshold is used to determine typical odor substances, for example, the preset odor activity threshold is 1, when there is only one "odor substance" with an in-compartment odor activity value greater than or equal to 1, the odor activity threshold can be reset based on the initial preset odor activity threshold. The updated odor activity threshold needs to be smaller than the initial preset odor activity threshold (1), for example, it can be adjusted to 0.5, and then compared until multiple typical odor substances are obtained.

[0113] Next, the typical odor correlation of each target component material is sorted in numerical order, and the odor component material is determined based on the sorting result. For example, the top 5 component materials can be taken, and then the odor source component in the rail vehicle compartment to be tested is determined based on the component to which the odor component material belongs.

[0114] To this end, by calculating the correlation between component materials and typical odorous substances in the car to screen out key odorous components, the odorous substances in the car can be quickly traced, and then the air quality can be controlled from the source, which is very practical.

[0115] By applying the technical solution of the present embodiment, a plurality of odor substances in the air in the compartment of the rail vehicle to be tested are obtained, and the compartment odor activity value of each odor substance in the air in the compartment of the rail vehicle to be tested is calculated. Among the odor activity values ​​corresponding to each of the plurality of odor substances, the odor substance corresponding to the odor activity value greater than or equal to the preset odor activity threshold is determined as a typical odor substance. For any target component material whose released odor substances include any typical odor substance, any one of the typical odor substances released by the target component material is selected, and the source odor activity value of the selected typical odor substance released by the target component material is calculated. Based on the compartment odor activity value and the source odor activity value of each typical odor substance released by the target component material, the typical odor correlation of the target component material is calculated, the typical odor correlation of each target component material is sorted in order of numerical value, and the odor component material is determined based on the sorting result. Then, based on the component to which the odor component material belongs, the odor source component in the compartment of the rail vehicle to be tested is determined. By calculating the correlation between component materials and typical odorous substances in the car, key odorous components can be screened out. The odorous substances in the car can be quickly traced without manual smelling.

[0116] Further, as Figure 1 The specific implementation of the method, the embodiment of the present application provides a vehicle odor component tracing device, such as Figure 4 As shown, the device comprises:

[0117] The odor substance determination module 401 is used to obtain multiple odor substances in the air in the compartment of the railway vehicle to be tested, wherein the odor substances are volatile organic compounds, and the compartment of the railway vehicle to be tested is composed of multiple component materials, and each component material releases at least one odor substance;

[0118] The typical odor determination module 402 is used to calculate the cabin odor activity value of each odor substance in the cabin air of the railway vehicle to be tested, and determine multiple typical odor substances in the cabin air of the railway vehicle to be tested based on the cabin odor activity value of each odor substance among multiple odor substances;

[0119] The odor correlation calculation module 403 is used for selecting any one of the typical odor substances released by any target component material including any typical odor substance in the released odor substances, calculating the source odor activity value of the selected typical odor substance released by the target component material, and calculating the typical odor correlation of the target component material based on the cabin odor activity value and source odor activity value of each typical odor substance released by the target component material;

[0120] The odor component tracing module 404 is used to determine the odor source components in the railway vehicle to be tested based on the typical odor correlation of each target component material.

[0121] Optionally, the odor association degree calculation module 403 is further used to:

[0122] Based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the odor activity value in the cabin, the typical odor correlation of the target component material is calculated, wherein the typical odor correlation calculation formula is:

[0123]

[0124] P j is the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

[0125] Optionally, the typical odor determination module 402 is further configured to:

[0126] Among the odor activity values ​​corresponding to multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to a preset odor activity threshold is determined as a typical odor substance, wherein, when the typical odor substance is one, an updated odor activity threshold is determined based on the preset odor activity threshold, and multiple typical odor substances are determined based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

[0127] Optionally, the odor component tracing module 404 is further used to:

[0128] Sorting the typical odor correlation of each target component material in numerical order, and determining the odor component material based on the sorting result;

[0129] Based on the component to which the odor component material belongs, the odor source component in the railway vehicle compartment to be tested is determined.

[0130] Furthermore, the present application provides another vehicle odor component tracing device, such as Figure 5 As shown, the device comprises:

[0131] The odor substance determination module 501 is used to obtain multiple odor substances in the air in the compartment of the railway vehicle to be tested, wherein the odor substances are volatile organic compounds, and the compartment of the railway vehicle to be tested is composed of multiple component materials, and each component material releases at least one odor substance;

[0132] The typical odor determination module 502 is used to calculate the cabin odor activity value of each odor substance in the cabin air of the railway vehicle to be tested, and determine multiple typical odor substances in the cabin air of the railway vehicle to be tested based on the cabin odor activity value of each odor substance among multiple odor substances;

[0133] The odor correlation calculation module 503 is used for selecting any one of the typical odor substances released by any target component material including any typical odor substance in the released odor substances, calculating the source odor activity value of the selected typical odor substance released by the target component material, and calculating the typical odor correlation of the target component material based on the cabin odor activity value and source odor activity value of each typical odor substance released by the target component material;

[0134] The odor component tracing module 504 is used to determine the odor source components in the railway vehicle compartment to be tested based on the typical odor correlation of each target component material;

[0135] The odor activity calculation module 505 is used to calculate the odor activity value of the odor substance in the air in the compartment of the rail vehicle to be tested for any odor substance according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold value corresponding to the odor substance, wherein the calculation formula of the odor activity value in the compartment is:

[0136]

[0137] D i,车厢 is the odor activity value of the i-th odor substance in the compartment, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, CT i is the preset olfactory threshold of the i-th odor substance;

[0138] The in-carriage theoretical content calculation module 506 is used to calculate the in-carriage theoretical content of the selected typical odor substance in the rail vehicle to be tested according to the in-carriage theoretical content calculation formula, wherein the in-carriage theoretical content calculation formula is:

[0139]

[0140] C i,典型，jis the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, C i,典型，j,袋 V is the content of the i-th typical odor substance tested by the bag method for the j-th component material, j,袋 is the gas volume of the jth component material during the bag test, S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 is the amount of component materials used for bag method testing, k is the total number of component materials containing the i-th typical odor substance in the tested rail vehicle compartment, C i,典型，车厢 is the content of the i-th typical odor substance in the rail vehicle compartment to be tested.

[0141] Optionally, the odor association degree calculation module 503 is further used to:

[0142] Based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the odor activity value in the cabin, the typical odor correlation of the target component material is calculated, wherein the typical odor correlation calculation formula is:

[0143]

[0144] P j is the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

[0145] Optionally, the odor activity calculation module 505 is further used to:

[0146] According to the calculation formula of the material source odor activity value, the theoretical content of the selected typical odor substance in the compartment of the railway vehicle to be tested, and the preset olfactory threshold corresponding to the selected typical odor substance, the material source odor activity value of the selected typical odor substance released by the target component material is calculated, wherein the calculation formula of the material source odor activity value is:

[0147]

[0148] D i,典型，j is the source odor activity value of the i-th typical odor substance released by the j-th target component material, C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, CT i,典型is the preset olfactory threshold of the i-th typical odor substance.

[0149] Optionally, the typical odor determination module 502 is further configured to:

[0150] Among the odor activity values ​​corresponding to multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to a preset odor activity threshold is determined as a typical odor substance, wherein, when the typical odor substance is one, an updated odor activity threshold is determined based on the preset odor activity threshold, and multiple typical odor substances are determined based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

[0151] Optionally, the odor component tracing module 504 is further used to:

[0152] Sorting the typical odor correlation of each target component material in numerical order, and determining the odor component material based on the sorting result;

[0153] Based on the component to which the odor component material belongs, the odor source component in the railway vehicle compartment to be tested is determined.

[0154] It should be noted that for other corresponding descriptions of the functional units involved in the vehicle odor component tracing device provided in the embodiment of the present application, reference can be made to Figures 1 to 3 The corresponding description in the method will not be repeated here.

[0155] Based on the above Figures 1 to 3 The method shown in the embodiment of the present application is accordingly provided with a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned Figures 1 to 3 The method for tracing the source of vehicle odorous parts is shown.

[0156] Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present application.

[0157] Based on the above Figures 1 to 3 The method shown, and Figure 4 and Figure 5 In order to achieve the above-mentioned purpose, the embodiment of the present application further provides a computer device, which can be a personal computer, a server, a network device, etc. The computer device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to achieve the above-mentioned Figures 1 to 3 The method for tracing the source of vehicle odorous parts is shown.

[0158] Optionally, the computer device may also include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface may include a display screen (Displ ay), an input unit such as a keyboard (Keyboard), etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (such as a Bluetooth interface, a WI-FI interface), etc.

[0159] Those skilled in the art will appreciate that the computer device structure provided in this embodiment does not limit the computer device, and may include more or fewer components, or a combination of certain components, or different component arrangements.

[0160] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages and saves the hardware and software resources of the computer device, and supports the operation of information processing programs and other software and / or programs. The network communication module is used to realize communication between the components inside the storage medium, and communication with other hardware and software in the physical device.

[0161] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform, or by hardware to obtain a variety of odor substances in the air in the compartment of the rail vehicle to be tested, where the odor substances are volatile organic compounds, and the in-compartment odor activity value of each odor substance is calculated, and a variety of typical odor substances are determined; the compartment of the rail vehicle to be tested is composed of a variety of component materials, and each component material releases at least one odor substance, and based on the in-compartment odor activity value and the source odor activity value of each typical odor substance released by the component material, the typical odor correlation is calculated to determine the odor source component in the compartment of the rail vehicle to be tested. By calculating the correlation between the component material and the typical odor substances in the compartment to screen the key odorous components, the odor substances in the compartment can be quickly traced without manual smelling.

[0162] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0163] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A method for tracing the source of vehicle odorous parts, characterized in that: The method comprises: Acquire multiple odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, the rail vehicle compartment to be tested is composed of multiple component materials, and each component material releases at least one odor substance; Calculating the in-carriage odor activity value of each odor substance in the in-carriage air of the rail vehicle to be tested, and determining, among the multiple odor substances, multiple typical odor substances in the in-carriage air of the rail vehicle to be tested based on the respective in-carriage odor activity values ​​of each odor substance; For any target component material whose released odor substances include any typical odor substance, any one of the typical odor substances released by the target component material is selected, and the source odor activity value of the selected typical odor substance released by the target component material is calculated; based on the cabin odor activity value and the source odor activity value of each typical odor substance released by the target component material, the typical odor correlation degree of the target component material is calculated; Based on the typical odor correlation of each target component material, the odor source components in the rail vehicle compartment to be tested are determined.

2. The method according to claim 1, characterized in that The calculating the typical odor correlation of the target component material based on the cabin odor activity value of each typical odor substance released by the target component material and the source odor activity value comprises: Based on the typical odor correlation calculation formula, the source odor activity value of each typical odor substance released by the target component material and the odor activity value in the cabin, the typical odor correlation of the target component material is calculated, wherein the typical odor correlation calculation formula is: P j is the typical odor association degree of the jth target component material, n is the total number of typical odor substances released by the jth target component material, D i,,典型,车厢 is the odor activity value of the i-th typical odor substance in the compartment, D i,典型,j, It is the source odor activity value of the i-th typical odor substance released by the j-th target component material.

3. The method according to claim 1, characterized in that The step of calculating the odor activity value of each odor substance in the air in the compartment of the rail vehicle to be tested includes: For any odor substance, the odor activity value of the odor substance in the air in the compartment of the rail vehicle to be tested is calculated according to the calculation formula of the odor activity value in the compartment, the content of the odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold corresponding to the odor substance, wherein the calculation formula of the odor activity value in the compartment is: D i,车厢 is the odor activity value of the i-th odor substance in the compartment, C i,车厢 is the content of the i-th odor substance in the rail vehicle compartment to be tested, CT i is the preset olfactory threshold of the i-th odor substance.

4. The method according to claim 1, characterized in that: The calculating of the source odor activity value of the selected typical odor substance released by the target component material comprises: According to the calculation formula of the material source odor activity value, the theoretical content of the selected typical odor substance in the compartment of the railway vehicle to be tested, and the preset olfactory threshold corresponding to the selected typical odor substance, the material source odor activity value of the selected typical odor substance released by the target component material is calculated, wherein the calculation formula of the material source odor activity value is: D i,典型，j is the source odor activity value of the i-th typical odor substance released by the j-th target component material, C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, CT i,典型 is the preset olfactory threshold of the i-th typical odor substance.

5. The method according to claim 4, characterized in that Before calculating the source odor activity value of the selected typical odor substance released by the target component material according to the source odor activity value calculation formula, the theoretical content of the selected typical odor substance in the compartment of the rail vehicle to be tested, and the preset odor threshold value corresponding to the selected typical odor substance, the method further includes: According to the calculation formula for the theoretical content in the compartment, the theoretical content of the selected typical odor substances in the compartment of the rail vehicle to be tested is calculated, wherein the calculation formula for the theoretical content in the compartment is: C i,典型，j is the theoretical content of the i-th typical odor substance released by the j-th target component material in the compartment of the railway vehicle to be tested, C i,典型，j,袋 V is the content of the i-th typical odor substance tested by the bag method for the j-th component material, j,袋 is the gas volume of the jth component material during the bag test, S j,整车 is the total amount of the jth component material in the tested rail vehicle compartment, S 袋 is the amount of component materials used for bag method testing, k is the total number of component materials containing the i-th typical odor substance in the tested rail vehicle compartment, C i,典型，车厢 is the content of the i-th typical odor substance in the rail vehicle compartment to be tested.

6. The method according to claim 1, characterized in that The multiple typical odor substances in the air in the compartment of the railway vehicle to be tested are determined based on the odor activity value of each odor substance in the compartment, including: Among the odor activity values ​​corresponding to multiple odor substances, the odor substance corresponding to the odor activity value greater than or equal to a preset odor activity threshold is determined as a typical odor substance, wherein, when the typical odor substance is one, an updated odor activity threshold is determined based on the preset odor activity threshold, and multiple typical odor substances are determined based on the updated odor activity threshold, and the updated odor activity threshold is less than the preset odor activity threshold.

7. The method according to claim 1, characterized in that The method of determining the odor source components in the railway vehicle compartment to be tested based on the typical odor correlation of each target component material includes: Sorting the typical odor correlation of each target component material in numerical order, and determining the odor component material based on the sorting result; Based on the component to which the odor component material belongs, the odor source component in the railway vehicle compartment to be tested is determined.

8. A vehicle odor component tracing device, characterized in that: The device comprises: An odor substance determination module is used to obtain a plurality of odor substances in the air in a rail vehicle compartment to be tested, wherein the odor substances are volatile organic compounds, and the rail vehicle compartment to be tested is composed of a plurality of component materials, and each component material releases at least one odor substance; A typical odor determination module is used to calculate the cabin odor activity value of each odor substance in the cabin air of the railway vehicle to be tested, and determine a plurality of typical odor substances in the cabin air of the railway vehicle to be tested based on the cabin odor activity value of each odor substance among a plurality of odor substances; An odor correlation calculation module is used for selecting any one of the typical odor substances released by any target component material including any typical odor substance in the released odor substances, calculating the source odor activity value of the selected typical odor substance released by the target component material, and calculating the typical odor correlation of the target component material based on the cabin odor activity value and source odor activity value of each typical odor substance released by the target component material; The odor component traceability module is used to determine the odor source components in the railway vehicle compartment to be tested based on the typical odor correlation of each target component material.

9. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for tracing the source of odorous components of a vehicle as described in any one of claims 1 to 7 is implemented.

10. A computer device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, characterized in that: When the processor executes the computer program, the method for tracing the source of odorous parts of a vehicle as described in any one of claims 1 to 7 is implemented.

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