Vehicle formaldehyde monitoring method and device, electronic equipment, storage medium and vehicle

Abstract

The application discloses a vehicle formaldehyde monitoring method, a vehicle formaldehyde monitoring device, an electronic device, a storage medium and a vehicle. The method comprises the following steps: acquiring vehicle seat pressure detection information; generating vehicle seat material extrusion state information according to the vehicle seat pressure detection information; acquiring vehicle seat formaldehyde detection information; obtaining fluctuation information of formaldehyde released under the vehicle seat material extrusion state according to the vehicle seat material extrusion state information and the vehicle seat formaldehyde detection information; and evaluating the vehicle formaldehyde release state according to the fluctuation information of formaldehyde released under the vehicle seat material extrusion state. Through the above scheme, the formaldehyde release fluctuation generated by the extrusion of the vehicle seat when being sat on is detected, the vehicle formaldehyde release state is evaluated, and the characteristics of the vehicle seat in releasing and absorbing formaldehyde are considered in the formaldehyde detection method. Therefore, the attenuation degree of formaldehyde in the vehicle cabin can be indirectly learned in a shorter time.

Description

Technical Field

[0001] This application relates to the field of gas monitoring, and in particular to methods for monitoring formaldehyde in vehicles, devices for monitoring formaldehyde in vehicles, electronic equipment, storage media, and vehicles. Background Technology

[0002] Existing vehicles use a large amount of chemical materials, such as plastic shells, foam materials, adhesives, and synthetic fiber fabrics, which bring significant formaldehyde pollution to the vehicle interior.

[0003] Compared to the confined space of a vehicle, formaldehyde is easy to accumulate and dissipate, for example, by opening windows for ventilation. However, while driving, it's rare to keep windows open for extended periods due to formaldehyde. Although opening windows can quickly blow formaldehyde away from the air, it continuously seeps out, and when the windows are closed, formaldehyde quickly accumulates again inside the car. Since keeping vehicle windows closed is the norm, this means that passengers need to keep windows open for ventilation at all times to avoid being exposed to formaldehyde.

[0004] In addition, vehicle seats use materials such as fabrics and foams, which not only release formaldehyde themselves but also absorb it. Although the main source of formaldehyde release in a vehicle cabin is not necessarily the vehicle seats, as the concentration of formaldehyde in the air increases, the formaldehyde released by the vehicle seats may decrease, but they will absorb more formaldehyde, thus lengthening the decay period of formaldehyde release from the entire vehicle.

[0005] Therefore, a method is needed to monitor formaldehyde in vehicles, thereby controlling the efficiency of vehicle ventilation by monitoring the efficiency of formaldehyde release from vehicle seats. Summary of the Invention

[0006] The purpose of this invention is to provide a method for monitoring formaldehyde in vehicles, a formaldehyde monitoring device for vehicles, an electronic device, a storage medium, and a vehicle, thereby solving at least one of the aforementioned technical problems.

[0007] This invention provides the following solution:

[0008] According to one aspect of the present invention, a method for monitoring formaldehyde in a vehicle is provided, the method comprising:

[0009] Obtain vehicle seat pressure detection information;

[0010] Based on the vehicle seat pressure detection information, information on the compression state of the vehicle seat material is generated;

[0011] Obtain formaldehyde testing information for vehicle seats;

[0012] Based on the vehicle seat material compression state information and the vehicle seat formaldehyde detection information, the fluctuation information of formaldehyde released from the vehicle seat material under compression state is obtained;

[0013] The formaldehyde release status of the vehicle is assessed based on the fluctuation information of formaldehyde released under the compression state of the vehicle seat material.

[0014] Furthermore, generating vehicle seat material compression state information based on the vehicle seat pressure detection information includes:

[0015] Obtain information on the types of materials used in vehicle seats;

[0016] Based on the information on the type of vehicle seat material and the formaldehyde detection information of the vehicle seat, formaldehyde release efficiency information corresponding to the type of vehicle seat material is generated;

[0017] Based on the vehicle seat pressure detection information and the type of vehicle seat material, the fluctuation information of formaldehyde release when the vehicle seat material is squeezed is obtained under the formaldehyde release efficiency corresponding to the type of vehicle seat material.

[0018] Based on the fluctuation information of formaldehyde release from the vehicle seat materials, assess the formaldehyde release status of the vehicle seats corresponding to the type of vehicle seat materials.

[0019] Furthermore, generating vehicle seat material compression state information based on the vehicle seat pressure detection information also includes:

[0020] Obtain temperature information of vehicle seat materials;

[0021] Based on the vehicle seat material temperature information and the vehicle seat formaldehyde detection information, formaldehyde release efficiency information corresponding to the vehicle seat material temperature is generated;

[0022] Based on the vehicle seat pressure detection information and the vehicle seat material temperature, the fluctuation information of formaldehyde release when the vehicle seat material is squeezed is obtained at the formaldehyde release efficiency corresponding to the vehicle seat material temperature.

[0023] Based on the fluctuation information of formaldehyde release from the vehicle seat material, the formaldehyde release status of the vehicle seat corresponding to the temperature of the vehicle seat material is evaluated.

[0024] Furthermore, assessing the formaldehyde release status of the vehicle based on the fluctuation information of formaldehyde release under the compression state of the vehicle seat material includes:

[0025] Passenger position information is generated based on vehicle seat pressure detection data;

[0026] Based on the passenger's location and the formaldehyde release status of the corresponding vehicle seats, a vehicle ventilation strategy is set.

[0027] The vehicle ventilation strategy includes controlling the opening area and position of the windows based on the vehicle speed, vehicle cabin temperature, and passenger position.

[0028] Obtain vehicle speed and vehicle cabin temperature;

[0029] Based on the current vehicle speed, vehicle cabin temperature, and passenger position, the opening area and position of the windows are controlled in the corresponding vehicle ventilation strategy to control the opening of the windows.

[0030] Furthermore, controlling the window opening area and position based on vehicle speed, vehicle cabin temperature, and passenger position includes:

[0031] According to the passenger's position, open the sunroof and the windows closest to the passenger's position;

[0032] The opening area of ​​the sunroof and the windows near the passenger position is controlled according to the vehicle speed, including reducing the opening area of ​​the sunroof and the windows near the passenger position as the vehicle speed increases.

[0033] Determine whether the vehicle cabin temperature is lower than a preset cabin temperature threshold.

[0034] If the vehicle cabin temperature is lower than a preset cabin temperature threshold, the opening area of ​​the sunroof and windows near the passenger position will be reduced, or / and the vehicle cabin heating function will be activated.

[0035] Furthermore, it also includes:

[0036] Based on the passenger's location and the vehicle cabin temperature being lower than a preset cabin temperature threshold, the windows closest to the passenger's location are closed, while the windows furthest from the passenger's location are opened.

[0037] According to two aspects of the present invention, a vehicle formaldehyde monitoring device is provided, the vehicle formaldehyde monitoring device comprising:

[0038] The pressure detection module is used to acquire vehicle seat pressure detection information;

[0039] The compression status module is used to generate vehicle seat material compression status information based on the vehicle seat pressure detection information.

[0040] The formaldehyde detection module is used to obtain formaldehyde detection information from vehicle seats;

[0041] The formaldehyde fluctuation module is used to obtain the fluctuation information of formaldehyde released from the vehicle seat material under the compression state based on the vehicle seat material compression state information and the vehicle seat formaldehyde detection information.

[0042] The attenuation assessment module is used to assess the formaldehyde release status of the vehicle based on the fluctuation information of formaldehyde released under the compression state of the vehicle seat material.

[0043] According to three aspects of the present invention, an electronic device is provided, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0044] The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the vehicle formaldehyde monitoring method.

[0045] According to four aspects of the present invention, a computer-readable storage medium is provided, comprising: storing a computer program executable by an electronic device, wherein when the computer program is run on the electronic device, the electronic device causes the electronic device to perform the steps of the vehicle formaldehyde monitoring method.

[0046] According to five aspects of the present invention, a vehicle is provided, comprising:

[0047] Electronic equipment for implementing the steps of the vehicle formaldehyde monitoring method;

[0048] The processor runs a program that, when running, executes the steps of the vehicle formaldehyde monitoring method based on data output from the electronic device.

[0049] A storage medium for storing a program that, when running, executes the steps of the vehicle formaldehyde monitoring method on data output from an electronic device.

[0050] The above solution achieves the following beneficial technical effects:

[0051] This application assesses the formaldehyde release status of a vehicle by measuring the formaldehyde release fluctuations caused by the compression of vehicle seats during seating. It considers the formaldehyde release and absorption characteristics of vehicle seats in formaldehyde detection methods, and compared to long-term, multiple-time formaldehyde detection, it can provide information on the degree of formaldehyde decay in a shorter time.

[0052] This application predicts the formaldehyde release efficiency of a vehicle by acquiring the formaldehyde release fluctuations caused by compression during passenger use. Based on the formaldehyde release efficiency, a suitable ventilation strategy is matched. Compared to directly detecting formaldehyde content exceeding the warning value before ventilation, this approach can keep formaldehyde at a low level earlier, minimizing harm to occupants.

[0053] Based on the fluctuations in formaldehyde release, this application proposes a ventilation control strategy, such as adjusting the location and area of ​​open windows. In the short term, windows near passengers are opened to quickly reduce formaldehyde levels. In the long term, windows away from passengers are opened to maintain air quality in the cabin while minimizing excessive temperature drops near passengers due to ventilation, thus reducing passenger discomfort.

[0054] This application creates an air circulation channel within the cabin by simultaneously opening the windows and sunroof, efficiently removing polluted air from the cabin. This reduces passengers' exposure to formaldehyde and decreases the area and frequency of window opening.

[0055] This application gradually reduces the window opening area according to vehicle speed, maintaining ventilation while preventing the interior temperature from dropping too quickly or the noise from becoming too loud, thus avoiding discomfort for the driver and passengers. Attached Figure Description

[0056] Figure 1 This is a flowchart of a vehicle formaldehyde monitoring method provided by one or more embodiments of the present invention.

[0057] Figure 2 This is a structural diagram of a vehicle formaldehyde monitoring device provided in one or more embodiments of the present invention.

[0058] Figure 3 This is a schematic diagram of a formaldehyde warning method in the cabin according to a specific embodiment of the present invention.

[0059] Figure 4 This is a schematic diagram of a calculation system for pressure and formaldehyde coupling according to a specific embodiment of the present invention.

[0060] Figure 5 This is a schematic diagram of the scene mode switching process according to a specific embodiment of the present invention.

[0061] Figure 6 This is a schematic diagram of a seat-mounted sensor according to a specific embodiment of the present invention.

[0062] Figure 7 This is a schematic diagram of a seat sensor information processing system according to a specific embodiment of the present invention.

[0063] Figure 8 This is a block diagram of an electronic device for a vehicle formaldehyde monitoring method provided in one or more embodiments of the present invention. Detailed Implementation

[0064] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] Figure 1 This is a flowchart of a vehicle formaldehyde monitoring method provided by one or more embodiments of the present invention.

[0066] like Figure 1 The vehicle formaldehyde monitoring methods shown include:

[0067] Step S1: Obtain vehicle seat pressure detection information;

[0068] Step S2: Generate vehicle seat material compression status information based on vehicle seat pressure detection information;

[0069] Step S3: Obtain formaldehyde detection information from vehicle seats;

[0070] Step S4: Based on the vehicle seat material compression state information and vehicle seat formaldehyde detection information, obtain the fluctuation information of formaldehyde released from the vehicle seat material under compression state.

[0071] Step S5: Assess the formaldehyde release status of the vehicle based on the fluctuation information of formaldehyde released under the compression state of the vehicle seat material.

[0072] The above solution achieves the following beneficial technical effects:

[0073] This application assesses the formaldehyde release status of a vehicle by measuring the formaldehyde release fluctuations caused by the compression of vehicle seats during seating. It considers the formaldehyde release and absorption characteristics of vehicle seats in formaldehyde detection methods, and compared to long-term, multiple-time formaldehyde detection, it can provide information on the degree of formaldehyde decay in a shorter time.

[0074] This application predicts the formaldehyde release efficiency of a vehicle by acquiring the formaldehyde release fluctuations caused by compression during passenger use. Based on the formaldehyde release efficiency, a suitable ventilation strategy is matched. Compared to directly detecting formaldehyde content exceeding the warning value before ventilation, this approach can keep formaldehyde at a low level earlier, minimizing harm to occupants.

[0075] Based on the fluctuations in formaldehyde release, this application proposes a ventilation control strategy, such as adjusting the location and area of ​​open windows. In the short term, windows near passengers are opened to quickly reduce formaldehyde levels. In the long term, windows away from passengers are opened to maintain air quality in the cabin while minimizing excessive temperature drops near passengers due to ventilation, thus reducing passenger discomfort.

[0076] This application creates an air circulation channel within the cabin by simultaneously opening the windows and sunroof, efficiently removing polluted air from the cabin. This reduces passengers' exposure to formaldehyde and decreases the area and frequency of window opening.

[0077] This application gradually reduces the window opening area according to vehicle speed, maintaining ventilation while preventing the interior temperature from dropping too quickly or the noise from becoming too loud, thus avoiding discomfort for the driver and passengers.

[0078] Specifically, vehicles use chemical materials in many places, such as the dashboard panel, interior decoration, and seat materials, which brings significant formaldehyde pollution to the vehicle interior. Therefore, there are multiple sources of formaldehyde pollution, and it is not appropriate to focus on any one area for protection.

[0079] Compared to the confined space of a vehicle cabin, formaldehyde is easy to accumulate and also easy to dissipate. Opening windows for ventilation quickly replaces the air inside, but formaldehyde continuously seeps out, and when the windows are closed, it quickly accumulates again. Since it's common for vehicles to remain closed, this means that passengers need to keep the windows open at all times to avoid being exposed to formaldehyde.

[0080] In addition, vehicle seats use materials such as fabrics and foams, which not only release formaldehyde themselves but also absorb it. Although the main source of formaldehyde release in a vehicle cabin may not be the seats, as the concentration of formaldehyde in the air increases, the seats may release less formaldehyde but absorb more. The formaldehyde carried and released by the seats reflects the overall efficiency and decay period of formaldehyde release in the vehicle.

[0081] Therefore, it is necessary to monitor the formaldehyde release efficiency inside the vehicle and correspondingly control the vehicle's ventilation efficiency.

[0082] High temperature, high humidity, negative pressure, and high load conditions exacerbate formaldehyde emission. As vehicle usage time increases, the efficiency of formaldehyde release from interior materials decreases. However, since the vehicle environment is not a laboratory environment, many theoretical tests cannot be conducted, long-term tracking and investigation are not possible, making precise control difficult. The amount of formaldehyde absorbed by vehicle seats, as well as the formaldehyde released themselves, is related to the overall actual formaldehyde concentration inside the vehicle, indirectly reflecting the degree of formaldehyde decay and release efficiency in the cabin. However, each time the car door is opened, the air circulation in the cabin temporarily eliminates the need for testing samples. Therefore, the relatively enclosed seats can be used as sampling targets. The airflow generated when passengers sit down can be used to detect the formaldehyde decay during each ride.

[0083] Because everyone's body shape and weight are different, the efficiency of seat compression varies with each ride, resulting in different gas circulation and varying formaldehyde concentrations released from the seat. Therefore, it is necessary to combine information about the seat material being compressed with formaldehyde concentration detection data to obtain information on the fluctuations in formaldehyde release concentration. This fluctuation information allows us to understand the efficiency and degree of decay of formaldehyde release from the vehicle over each ride, enabling us to develop appropriate ventilation strategies in advance.

[0084] The formaldehyde release status of a vehicle can be assessed based on the fluctuation information of formaldehyde release under compression conditions of vehicle seat materials. For example, for a vehicle that has been left undisturbed overnight, the first set of data is measured before the door is opened and no one has driven in. First, the formaldehyde value is measured when the seats are not compressed. When the seats are compressed (under the same pressure), the formaldehyde measurement reaches a peak value within a short period; this peak value is recorded. The second set of data is measured using the same method, obtaining the second set of formaldehyde values ​​and the second peak value. Besides directly comparing the first and second set of formaldehyde values, the first and second peak values ​​can also be compared. If the second set of formaldehyde values ​​is higher than the first set, it indicates an increase in the amount of formaldehyde accumulated in the vehicle's cabin air. If the second set of peak values ​​is higher than the first, it indicates an increase in the amount of formaldehyde released from the fabrics under compression, meaning a large amount of formaldehyde is in an unstable state and can be rapidly released due to various disturbances. If the formaldehyde level is lower in the second test than in the first, but the ratio of the peak formaldehyde level in the second test to the combined peak formaldehyde level in the first test is higher, it indicates that although formaldehyde accumulates less efficiently in the air, materials in the vehicle (such as seat fillings) can easily release formaldehyde rapidly due to various disturbances. If only the formaldehyde level in the cabin air is measured directly, the serious situation of accelerated formaldehyde release when someone is riding in the vehicle cannot be detected in time.

[0085] In this embodiment, generating vehicle seat material compression state information based on vehicle seat pressure detection information includes:

[0086] Obtain information on the types of materials used in vehicle seats;

[0087] Based on information about the types of vehicle seat materials and formaldehyde testing information, formaldehyde release efficiency information for the corresponding types of vehicle seat materials is generated.

[0088] Based on vehicle seat pressure detection information and vehicle seat material type, obtain the fluctuation information of formaldehyde release when vehicle seat material is squeezed under the formaldehyde release efficiency of the corresponding vehicle seat material type.

[0089] Based on the fluctuation information of formaldehyde release from vehicle seat materials, assess the formaldehyde release status of the corresponding types of vehicle seat materials.

[0090] Specifically, different vehicle seat materials have different abilities to release and absorb formaldehyde, and their efficiency in releasing formaldehyde after being compressed also varies. Therefore, it is necessary to distinguish seats made of different materials after sewing and bonding, and obtain information on the fluctuation of formaldehyde release from vehicle seat materials based on the different materials, so as to obtain the formaldehyde decay status of the vehicle.

[0091] Formaldehyde release sources within the cabin are not isolated; depending on the materials used, the formaldehyde content is the cumulative effect of releases from various sources. The effective volatilization time also varies depending on the source. For example, some fabrics allow formaldehyde to dissipate almost completely within 7-15 days, while the formaldehyde in some imitation leathers may take months to dissipate. Therefore, although the formaldehyde release and adsorption capabilities of seats vary due to the complexity and diversity of seat materials, their ability to encapsulate localized gases remains constant. By compressing the seats with each ride, the formaldehyde release status of the corresponding vehicle seat materials can be obtained, thus revealing the overall formaldehyde reduction status of the vehicle.

[0092] In this embodiment, generating vehicle seat material compression state information based on vehicle seat pressure detection information further includes:

[0093] Obtain temperature information of vehicle seat materials;

[0094] Based on the temperature information of the vehicle seat materials and the formaldehyde detection information of the vehicle seats, formaldehyde release efficiency information corresponding to the temperature of the vehicle seat materials is generated.

[0095] Based on the vehicle seat pressure detection information and the vehicle seat material temperature, the fluctuation information of formaldehyde release from the squeezed vehicle seat material is obtained under the formaldehyde release efficiency at the corresponding vehicle seat material temperature.

[0096] Based on the fluctuation information of formaldehyde release from vehicle seat materials, assess the formaldehyde release status of vehicle seats at the corresponding temperature of the vehicle seat materials.

[0097] Specifically, formaldehyde release is highly temperature-dependent. Since formaldehyde's boiling point is 19°C, when the temperature exceeds 19°C, the formaldehyde volatilization rate increases by 0.4 times for every 1°C increase in indoor temperature. This is especially pronounced in summer when temperatures rise or in winter when heating is used, with concentrations sometimes exceeding four times the normal level. This explains why indoor formaldehyde levels may be within acceptable limits in spring and autumn, but exceed limits in summer and winter. Even in winter, when car air conditioning is on, materials near the vents are heated to high temperatures, potentially exceeding 20°C. At this point, formaldehyde hidden in the vehicle's headliner, panels, seats, and other interior surfaces is released in large quantities.

[0098] Therefore, the temperature at which formaldehyde fluctuations were detected must also be considered, including the ambient temperature at which the vehicle seat materials release formaldehyde. Similarly, other areas of the cabin will release more formaldehyde due to increased temperature. Utilizing the seat's own adsorption capacity, when the seat is compressed, the released formaldehyde is a mixture of formaldehyde released from the material itself and adsorbed formaldehyde. By detecting fluctuations in formaldehyde content, the fluctuations in formaldehyde content throughout the entire vehicle are calculated together to obtain the overall formaldehyde release status of the vehicle, including release efficiency and the degree of attenuation.

[0099] In this embodiment, the assessment of the vehicle's formaldehyde release status based on the fluctuation information of formaldehyde release under compression conditions of the vehicle seat material includes:

[0100] Passenger position information is generated based on vehicle seat pressure detection data;

[0101] The vehicle ventilation strategy is set according to the passenger's location and the formaldehyde release status of the corresponding vehicle seats;

[0102] Vehicle ventilation strategies include controlling the opening area and position of windows based on vehicle speed, vehicle cabin temperature, and passenger position.

[0103] Obtain vehicle speed and vehicle cabin temperature;

[0104] Based on the current vehicle speed, cabin temperature, and passenger position, the corresponding vehicle ventilation strategy controls the window opening area and position to control the window opening.

[0105] Specifically, before each passenger gets in the vehicle, it is usually left to stand for a period of time, allowing formaldehyde released into the air to be absorbed into the seats. Squeezing the seats can indicate the efficiency of formaldehyde release from the cabin. Similarly, formaldehyde release continues during driving. Ventilation is an effective and necessary method, but the cabin space is small, and the amount of gas replaced is limited. Opening the windows briefly can complete one gas exchange, but drivers tend to keep the windows closed, allowing formaldehyde to continue to accumulate and cause actual harm. Therefore, the formaldehyde release status obtained by testing the seats can be used as information to detect potential formaldehyde accumulation without ventilation, allowing for pre-ventilation by opening windows to prevent formaldehyde buildup.

[0106] By opening windows for ventilation, a continuous and relatively stable air exchange efficiency can be maintained, keeping the formaldehyde concentration in the cabin at a low level, thus ensuring the respiratory safety of passengers. However, opening windows too wide can affect passenger comfort, such as causing excessively low temperatures or excessive wind noise.

[0107] Vehicle speed is related to wind noise and ventilation efficiency; vehicle cabin temperature is related to formaldehyde release efficiency and passenger comfort; and passengers' tolerance for window placement varies depending on their position. Therefore, it is necessary to choose appropriate window positions and sizes to find a balance between passenger comfort and respiratory health.

[0108] In this embodiment, controlling the window opening area and opening position based on vehicle speed, vehicle cabin temperature, and passenger position includes:

[0109] Open the sunroof and windows closest to the passengers, depending on their positions.

[0110] Control the opening area of ​​the sunroof and windows near the passenger position according to the vehicle speed, including reducing the opening area of ​​the sunroof and windows near the passenger position as the vehicle speed increases.

[0111] Determine whether the vehicle cabin temperature is lower than the preset cabin temperature threshold.

[0112] If the vehicle cabin temperature is lower than the preset cabin temperature threshold, the opening area of ​​the sunroof and windows near the passenger position will be reduced, or / and the vehicle cabin heating function will be activated.

[0113] Specifically, if there are few passengers in the car, such as only the driver, the windows closest to the driver can be opened first. This efficiently introduces fresh air into the cabin and creates an air channel with the sunroof, allowing for rapid air exchange. Therefore, the window opening area can be kept small while still achieving sufficient ventilation. As vehicle speed increases, the pressure difference between the inside and outside increases, allowing for further control of the window opening area. Of course, opening windows for ventilation will inevitably lower the interior temperature. While lower temperatures can reduce formaldehyde release efficiency, they can cause discomfort. Reducing the window opening area can alleviate this temperature drop. If temperature control is not ideal, the cabin heating function can be activated to prevent the temperature from dropping too low or too quickly. From an energy consumption perspective, cabin heating is suitable for gasoline vehicles but disadvantageous for electric vehicles. This is because gasoline vehicles rely on waste heat from the radiator, while electric vehicles consume battery power for heating.

[0114] In this embodiment, it also includes:

[0115] Based on the passenger's location and the vehicle cabin temperature being lower than a preset cabin temperature threshold, the windows closest to the passenger's location are closed, while the windows furthest from the passenger's location are opened.

[0116] Specifically, opening the windows near the passengers can quickly replace the air around them, but this results in a sharp drop in temperature. It's advisable to wait until the air around the passengers has been replaced to a safe level before opening the windows further away from them. This approach is suitable when there are few people in the car. For example, if there's only a driver, the driver's side window can be closed, and the passenger side window or the windows near the rear seats can be opened instead. By changing the airflow, the efficiency of air circulation around the driver is reduced, maintaining low formaldehyde levels inside the car while preventing the interior temperature from dropping too quickly.

[0117] Of course, controlling the opening area of ​​car windows is quite challenging. One approach is to intermittently open the windows and sunroof, automatically exposing the air at regular intervals. From a long-term perspective, as long as formaldehyde levels inside the car don't accumulate above a safe threshold, this is equivalent to keeping the windows constantly open with a tiny crack.

[0118] Generally speaking, formaldehyde concentrations are caused by accumulation. By breaking up the accumulated formaldehyde, the air quality inside the car can be controlled within a safe range. Ventilation is the most efficient and direct method.

[0119] Figure 2 This is a structural diagram of a vehicle formaldehyde monitoring device provided in one or more embodiments of the present invention.

[0120] like Figure 2 As shown, the vehicle formaldehyde monitoring device includes: a pressure detection module, a compression status module, a formaldehyde detection module, a formaldehyde fluctuation module, and a decay assessment module.

[0121] The pressure detection module is used to acquire vehicle seat pressure detection information;

[0122] The extrusion status module is used to generate vehicle seat material extrusion status information based on vehicle seat pressure detection information.

[0123] The formaldehyde detection module is used to obtain formaldehyde detection information from vehicle seats;

[0124] The formaldehyde fluctuation module is used to obtain the fluctuation information of formaldehyde released from vehicle seat materials under compression conditions based on the vehicle seat material compression state information and vehicle seat formaldehyde detection information.

[0125] The attenuation assessment module is used to assess the formaldehyde release status of a vehicle based on the fluctuation information of formaldehyde release under the compression state of the vehicle seat material.

[0126] It is worth noting that although this system only discloses the pressure detection module, the compression state module, the formaldehyde detection module, the formaldehyde fluctuation module, and the attenuation assessment module, it does not mean that this device is limited to the above-mentioned basic functional modules. On the contrary, what this invention intends to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with existing technology to form an infinite number of embodiments or technical solutions. That is to say, this system is open rather than closed. It should not be assumed that the scope of protection of the claims of this invention is limited to the above-disclosed basic functional modules just because this embodiment only discloses a few basic functional modules.

[0127] Figure 3 This is a schematic diagram of a formaldehyde warning method in the cabin according to a specific embodiment of the present invention.

[0128] Figure 4 This is a schematic diagram of a calculation system for pressure and formaldehyde coupling according to a specific embodiment of the present invention.

[0129] Figure 5 This is a schematic diagram of the scene mode switching process according to a specific embodiment of the present invention.

[0130] Figure 6 This is a schematic diagram of a seat-mounted sensor according to a specific embodiment of the present invention.

[0131] Figure 7 This is a schematic diagram of a seat sensor information processing system according to a specific embodiment of the present invention.

[0132] like Figure 3 As shown in this specific embodiment, the color of the ambient light is used to determine different formaldehyde contents and the corresponding protective measures. The formaldehyde content can be obtained by directly measuring it inside the vehicle cabin, or indirectly by inferring it from the formaldehyde fluctuation values ​​measured after the seats are compressed.

[0133] For example, in the refreshing mode, the current formaldehyde content is below 0.08 mg / m³, which is within the safe range, and no other adverse reactions will occur after driving the vehicle for a long time. At this time, it is determined to be in refreshing mode. If there is an ambient light in the vehicle, the green ambient light can be turned on.

[0134] For example, in Comfort mode, if the current formaldehyde content is higher than 0.08 mg / m³ but not higher than 0.4 mg / m³, and the driving time is no more than 2 hours and the windows are open during the driving time, it is believed that the formaldehyde content will not pose a threat to the user during that time period. If the vehicle has ambient lighting, the blue ambient lighting can be turned on.

[0135] For example, in monitoring mode, if the current formaldehyde concentration is higher than 0.08 mg / m³ but not higher than 0.4 mg / m³, and the driving time is no more than 2 hours without opening the windows during that time, it is considered that the formaldehyde concentration will not pose a threat to the user during that period. However, it is necessary to monitor whether the formaldehyde concentration will rise and increase the detection frequency. If the vehicle has ambient lighting, the gray ambient lighting can be turned on.

[0136] For example, in the sub-health mode, when the current formaldehyde content is higher than 0.08 mg / m³ but not higher than 0.4 mg / m³, if the driving time is longer than 2 hours and the car windows are not opened during the driving time, long-term driving may have a health impact on the driver. At this time, it is necessary to remind the driver that the air quality inside the car has deteriorated and ask if they need to open the windows. If the vehicle has ambient lighting, the yellow ambient lighting can be turned on.

[0137] For example, in warning mode, if the current formaldehyde content is higher than 0.4 mg / m³, it is considered that the formaldehyde content at this time will harm the user's health. If the user starts the vehicle, the system can inform the user that the air quality inside the vehicle does not meet the requirements and suggest some methods to remove formaldehyde. If the vehicle has ambient lighting, the red ambient light can be turned on.

[0138] In another specific embodiment, according to national standards, the formaldehyde content should not exceed 0.08 mg / m³. For example, at 0.09 mg / m³ to 0.3 mg / m³, symptoms include increased susceptibility to colds, weakened immunity, and dry or sore throat upon waking. At 0.4 mg / m³ to 0.8 mg / m³, symptoms include coughing, respiratory discomfort, and increased susceptibility to death of indoor plants. At 0.9 mg / m³ to 1.0 mg / m³, symptoms include asthma and increased risk of leukemia and lung cancer. Therefore, the formaldehyde content in vehicles needs to be controlled at 0.08 mg / m³ to provide users with a comfortable and healthy driving experience. The main method for removing formaldehyde from cars is by opening windows. Figure 4 As shown, based on the different formaldehyde content in the car and the current occupants, there are four modes: driver priority, front seat priority, precise detection priority, and full vehicle ventilation.

[0139] The driver priority, front seat priority, and precision detection priority modes are collectively referred to as intelligent scene modes. Users cannot select any one of the intelligent scene modes; they can only switch between intelligent scene modes and full vehicle ventilation modes. When an intelligent scene mode is selected, the vehicle operating system will identify the passenger's seating position based on the pressure detection sensor at the driver's seat and activate the corresponding mode. If only the driver's seat is occupied, the driver priority mode will be activated; if the driver's seat and front passenger seat are occupied but the rear seats are empty, the front seat priority mode will be activated; and if the driver's seat and rear seats are occupied but the front passenger seat is empty, the precision detection mode will be activated.

[0140] The driver-first mode uses only the formaldehyde sensor data from the driver's side for calculations. If the formaldehyde concentration in the driver's side exceeds the standard, the driver's side window is opened for ventilation to reduce the formaldehyde concentration. This mode is suitable for situations where there is only one person driving.

[0141] Front row priority: The system uses formaldehyde sensor data from the front seats (driver and front passenger) to calculate and, when the formaldehyde concentration in the front row exceeds the standard, opens the front side windows to ventilate and reduce the formaldehyde concentration. This scenario applies when there is someone in the driver's seat.

[0142] Accurate detection is prioritized. The vehicle's operating system uses pressure sensors on the seats to detect which unknown seats are occupied, and then opens the corresponding windows to purify the air and reduce formaldehyde concentration.

[0143] The entire vehicle is ventilated. Based on data from both the front and rear seats, when the formaldehyde concentration exceeds a fixed range, all windows are opened to ventilate and reduce the formaldehyde concentration.

[0144] Furthermore, based on the formaldehyde concentration detected by the formaldehyde detection sensor and the duration of car operation with the windows closed, the system will set the current vehicle usage mode to either a refreshing mode, a monitoring mode, or a sub-health mode.

[0145] like Figure 6 As shown, formaldehyde and pressure sensors are installed under the seat leather, without direct contact with the air. The formaldehyde levels are measured by squeezing the seat, thus the measured values ​​may be inaccurate. Furthermore, as the car seat is a direct source of pollution, the formaldehyde levels released into the air will decrease slightly, and the readings will vary depending on the passenger's weight and the pressure sensor readings. To more accurately determine formaldehyde content, a formaldehyde hazard value is now mandated as the measurement value for this scenario mode.

[0146] Formaldehyde hazard value = (attenuation value) × formaldehyde content × amplification factor × (pressure sensor value / standard pressure value) × time;

[0147] The attenuation value was measured and calculated to be 0.83. The formaldehyde content was obtained from the formaldehyde sensor with an amplification factor of 100. The pressure sensor value was obtained from the pressure sensor. The standard pressure value was the normally generated pressure value. The time was the time the car was driven with the windows closed after starting, in 1 hour. Calculations show that when 0 < hazard value < 7.47, the car is in a refreshing mode; when 7.47 <= hazard value < 25, the car is in a monitoring mode; and when 25 < hazard value, the car is in a sub-health mode.

[0148] Of the four vehicle modes, driver priority, front seat priority, and precise detection priority are not selectable and are collectively referred to as intelligent scenarios. These modes can only be selected based on whether the vehicle seats detect whether anyone is sitting in them. You can switch from these intelligent scenarios to full vehicle ventilation by manually selecting the mode.

[0149] like Figure 5As shown, in the driver-first mode, when the vehicle's seat detects that only the driver's seat is occupied, the driver-first mode is activated. If the current formaldehyde concentration is below 0.08 mg / m³ (the current formaldehyde hazard value is below 7.47), which is within a safe range, and prolonged driving will not cause any adverse reactions, this is considered a "fresh" mode. If the formaldehyde concentration is between 0.08 mg / m³ and 0.4 mg / m³ (the hazard value is between 7.47 and 25), it will be considered a monitoring mode. At this formaldehyde concentration, it is not advisable to drive in the car for an extended period. If driving for a long time with the windows closed for more than an hour, it will be considered a sub-health mode (hazard value greater than 25). In this mode, the vehicle system will force the driver's side window to be opened to reduce the formaldehyde concentration; otherwise, the driver will be in an unhealthy state.

[0150] Front-seat priority mode: When the vehicle's seat system detects that only the front seats are occupied, it activates the front-seat priority mode. If the current formaldehyde concentration is below 0.08 mg / m³ (hazard value below 7.47), which is within the safe range and no adverse reactions will occur after prolonged driving, it is considered a refreshing mode. If the formaldehyde concentration is between 0.08 mg / m³ and 0.4 mg / m³ (hazard value greater than 7.47 but less than 25), it will be considered a monitoring mode. At this formaldehyde concentration, it is not advisable to drive in the car for a long time. If driving for a long time with the windows closed for more than an hour, it will be considered a sub-health mode (hazard value greater than 25). In this mode, the vehicle system will force the front windows to be opened to reduce the formaldehyde concentration, otherwise the occupants will be in an unhealthy state.

[0151] In the Precision Detection Priority Mode, when the vehicle's seat detection indicates that only the front and rear seats are occupied, this mode is activated first. If the current formaldehyde concentration is below 0.08 mg / m³ (hazard value below 7.47), it is within a safe range, and prolonged driving will not cause any adverse reactions. In this case, it is considered to be in the Fresh Mode. If the formaldehyde concentration is between 0.08 mg / m³ and 0.4 mg / m³ (hazard value between 7.47 and 25), it will be considered to be in Monitoring Mode. At this formaldehyde concentration, it is not advisable to drive in the car for an extended period. If driving for a long time with the windows closed for more than an hour, it will be in Sub-Health Mode (hazard value greater than 25). In this mode, the vehicle system will forcefully open the window on the occupied side to reduce the formaldehyde concentration; otherwise, the occupants will be in an unhealthy state.

[0152] Full vehicle ventilation mode: This mode can be manually selected. When the full vehicle ventilation mode is activated, if the current formaldehyde content is below 0.08 mg / m³ (below the hazard value of 7.47), which is within the safe range and no other adverse reactions occur after driving the vehicle for a long time, it is considered a refreshing mode. If the formaldehyde content is between 0.08 mg / m³ and 0.4 mg / m³ (between the hazard value of 7.47 and 25), it will be considered a monitoring mode. At this formaldehyde concentration, it is not advisable to drive in the car for a long time. If you drive for a long time and keep the windows closed for more than an hour, it will be considered a sub-health mode (hazard value greater than 25). In this mode, the vehicle system will determine that all windows should be forcibly opened to reduce the formaldehyde concentration, otherwise the occupants of the vehicle will be in an unhealthy state.

[0153] like Figure 6 As shown in this specific embodiment, a pressure sensor and a formaldehyde sensor are installed within the filling of the car seat. There is a coupled relationship between the pressure the seat withstands and the formaldehyde released after the seat withstands pressure. By detecting the pressure value and formaldehyde fluctuation value through the pressure sensor and the formaldehyde sensor, the degree of formaldehyde pollution in the vehicle can be assessed. Since formaldehyde is already present in the air surrounding the seat, it is necessary to obtain the fluctuation value in addition to the direct measurement of formaldehyde. Measuring the formaldehyde within the seat reduces interference from opening and closing the car doors on the measurement environment.

[0154] like Figure 7 As shown, in this specific embodiment, the pressure sensor and formaldehyde sensor convert the data into digital signals via an analog-to-digital converter. After processing by a microcontroller, the data collected by the sensors is transmitted to the vehicle operating system via Ethernet and CAN bus. The operating system receives the incoming data and analyzes and calculates all received formaldehyde and pressure data at the operating system's functional level. Based on the calculated data and the current environment, it makes scenario selections that match the current data. For example, it sets ventilation strategies, such as the area of ​​windows to be opened and which windows to open. It also displays the formaldehyde risk assessment level on the interface, reports to the cloud server, performs big data analysis on the formaldehyde release efficiency of similar vehicle models, and selects suppliers and improves subsequent material configurations based on formaldehyde release levels.

[0155] Figure 8 This is a block diagram of an electronic device for a vehicle formaldehyde monitoring method provided in one or more embodiments of the present invention.

[0156] like Figure 8 As shown, this application provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0157] The memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the vehicle formaldehyde monitoring method.

[0158] This application also provides a computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of a vehicle formaldehyde monitoring method.

[0159] This application also provides a vehicle, including:

[0160] Electronic equipment used to implement a method for monitoring formaldehyde in vehicles;

[0161] The processor runs a program that, when running, executes the steps of a vehicle formaldehyde monitoring method based on data output from electronic devices.

[0162] Storage medium for storing programs that, when run, execute steps of a vehicle formaldehyde monitoring method based on data output from an electronic device.

[0163] The communication bus mentioned in the above electronic devices can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0164] The electronic device comprises a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on the operating system. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory. The operating system can be any one or more computer operating systems that control the electronic device through processes, such as Linux, Unix, Android, iOS, or Windows. Furthermore, in this embodiment of the invention, the electronic device can be a smartphone, tablet computer, or other handheld device, or a desktop computer, portable computer, or other electronic device; there is no particular limitation in this embodiment.

[0165] In this embodiment of the invention, the executing entity for electronic device control can be an electronic device itself, or a functional module within an electronic device capable of calling and executing a program. The electronic device can obtain the firmware corresponding to the storage medium. This firmware is provided by the supplier, and different storage media may have the same or different firmware; no limitation is made here. After obtaining the firmware corresponding to the storage medium, the electronic device can write this firmware into the storage medium; specifically, it burns the firmware corresponding to the storage medium into the storage medium. The process of burning the firmware into the storage medium can be implemented using existing technology, and will not be elaborated upon in this embodiment of the invention.

[0166] Electronic devices can also obtain reset commands corresponding to storage media. These reset commands are provided by the supplier, and the reset commands for different storage media can be the same or different, which is not limited here.

[0167] At this time, the storage medium of the electronic device is a storage medium on which the corresponding firmware has been written. The electronic device can respond to the reset command corresponding to the storage medium on which the corresponding firmware has been written, thereby resetting the storage medium on which the corresponding firmware has been written according to the reset command. The process of resetting the storage medium according to the reset command can be implemented by existing technology and will not be described in detail in this embodiment of the invention.

[0168] For ease of description, the above devices are described separately by function as various units and modules. Of course, in implementing this application, the functions of each unit and module can be implemented in one or more software and / or hardware.

[0169] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined.

[0170] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0171] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0172] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring formaldehyde in vehicles, characterized in that, The vehicle formaldehyde monitoring method includes: Obtain vehicle seat pressure detection information; Based on the vehicle seat pressure detection information, information on the compression state of the vehicle seat material is generated; Obtain formaldehyde testing information for vehicle seats; Based on the vehicle seat material compression state information and the vehicle seat formaldehyde detection information, the fluctuation information of formaldehyde released from the vehicle seat material under compression state is obtained; The formaldehyde release status of the vehicle is assessed based on the fluctuation information of formaldehyde released under the compression state of the vehicle seat material. Furthermore, obtain information on the types of materials used for vehicle seats; Based on the information on the type of vehicle seat material and the formaldehyde detection information of the vehicle seat, formaldehyde release efficiency information corresponding to the type of vehicle seat material is generated; Based on the vehicle seat pressure detection information and the type of vehicle seat material, the fluctuation information of formaldehyde release when the vehicle seat material is squeezed is obtained under the formaldehyde release efficiency corresponding to the type of vehicle seat material. Based on the fluctuation information of formaldehyde release from the vehicle seat materials, the formaldehyde release status of the vehicle seats corresponding to the types of vehicle seat materials is evaluated, and then the formaldehyde release status of the vehicle is evaluated. Furthermore, passenger position information is generated based on vehicle seat pressure detection information; Based on the passenger locations and the corresponding formaldehyde release status of the vehicle, a vehicle ventilation strategy is set. The vehicle ventilation strategy includes controlling the opening area and position of the windows based on the vehicle speed, vehicle cabin temperature, and passenger position. Obtain vehicle speed and vehicle cabin temperature; Based on the current vehicle speed, vehicle cabin temperature, and passenger position, the opening area and position of the windows are controlled in the corresponding vehicle ventilation strategy to control the opening of the windows.

2. The vehicle formaldehyde monitoring method according to claim 1, characterized in that, Also includes: Obtain temperature information of vehicle seat materials; Based on the vehicle seat material temperature information and the vehicle seat formaldehyde detection information, formaldehyde release efficiency information corresponding to the vehicle seat material temperature is generated; Based on the vehicle seat pressure detection information and the vehicle seat material temperature, the fluctuation information of formaldehyde release when the vehicle seat material is squeezed is obtained at the formaldehyde release efficiency corresponding to the vehicle seat material temperature. Based on the fluctuation information of formaldehyde release from the vehicle seat material, the formaldehyde release status of the vehicle seat corresponding to the temperature of the vehicle seat material is evaluated.

3. The vehicle formaldehyde monitoring method according to claim 2, characterized in that, The control of the window opening area and position based on vehicle speed, vehicle cabin temperature, and passenger position includes: According to the passenger's position, open the sunroof and the windows closest to the passenger's position; The opening area of ​​the sunroof and the windows near the passenger position is controlled according to the vehicle speed, including reducing the opening area of ​​the sunroof and the windows near the passenger position as the vehicle speed increases. Determine whether the vehicle cabin temperature is lower than a preset cabin temperature threshold. If the vehicle cabin temperature is lower than a preset cabin temperature threshold, the opening area of ​​the sunroof and windows near the passenger position will be reduced, or / and the vehicle cabin heating function will be activated.

4. The vehicle formaldehyde monitoring method according to claim 3, characterized in that, Also includes: Based on the passenger's location and the vehicle cabin temperature being lower than a preset cabin temperature threshold, the windows closest to the passenger's location are closed, while the windows furthest from the passenger's location are opened.

5. A vehicle formaldehyde monitoring device, used to implement the vehicle formaldehyde monitoring method as described in any one of claims 1 to 4, characterized in that, The vehicle formaldehyde monitoring device includes: The pressure detection module is used to acquire vehicle seat pressure detection information; The compression status module is used to generate vehicle seat material compression status information based on the vehicle seat pressure detection information. The formaldehyde detection module is used to obtain formaldehyde detection information from vehicle seats; The formaldehyde fluctuation module is used to obtain the fluctuation information of formaldehyde released from the vehicle seat material under the compression state based on the vehicle seat material compression state information and the vehicle seat formaldehyde detection information. The attenuation assessment module is used to assess the formaldehyde release status of the vehicle based on the fluctuation information of formaldehyde released under the compression state of the vehicle seat material.

6. An electronic device, characterized in that, include: The processor, communication interface, memory, and communication bus are connected, with the processor, communication interface, and memory communicating with each other via the communication bus. The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the vehicle formaldehyde monitoring method according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, include: It stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the vehicle formaldehyde monitoring method according to any one of claims 1 to 4.

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