Method for detecting installation state of seal strip of stationary air conditioner, stationary air conditioner and vehicle
Patent Information
- Application Number
- CN202310988950.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-07
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2043-08-07
AI Technical Summary
[0005]本发明旨在解决上述技术问题,即,解决现有的驻车空调器安装到车上后无法对密封条的安装状态进行检测,导致可能出现漏水或排水堵塞的问题
[0016] By adopting the above technical solution, the present invention can detect whether there is a risk of water leakage or blockage between the vehicle body and the sealing strip. Specifically, the present invention detects the effective contact area A between the sealing strip and the vehicle body. c and A c The first preset value A is the minimum contact area to ensure the sunroof does not leak. c- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. c+ The sizes are compared to determine the effective contact area A between the sealing strip and the vehicle body. c Whether it is within a suitable range, and thus the effective contact area A between the sealing strip and the vehicle body can be determined based on the comparison results. c The size was adjusted to solve the problem that the installation status of the sealing strip could not be detected after the existing parking air conditioner was installed on the vehicle, which could lead to water leakage or drainage blockage.
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Figure CN117141186B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioner technology, specifically providing a method for detecting the installation status of a sealing strip in a parking air conditioner, a parking air conditioner, and a vehicle. Background Technology
[0002] Most parking air conditioners on the market achieve a seal between the air conditioner chassis and the vehicle roof by attaching a sealing strip to prevent leaks. There are generally two installation methods for parking air conditioners. One method involves the sealing strip being included as a separate accessory in the packaging. During installation, a professional installer (electrician) first attaches the sealing strip to the air conditioner chassis and then lowers the air conditioner onto the roof. This method requires a higher level of skill from the electrician. The other method involves the sealing strip being pre-installed on the air conditioner chassis at the factory. During installation, the air conditioner simply needs to be lowered directly onto the roof.
[0003] Regardless of the installation method, the sealing strip must be inspected for quality after installation. If the contact area between the sealing strip and the air conditioning chassis or roof is too small, water leakage will occur; if the contact area between the sealing strip and the air conditioning chassis or roof is too large, the sealing strip will occupy the drainage channel and cause drainage blockage.
[0004] Accordingly, there is a need in the field for a new method for detecting the installation status of the sealing strip of a parking air conditioner, as well as a parking air conditioner and a vehicle, to address the existing problems. Summary of the Invention
[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the installation status of the sealing strip cannot be detected after the existing parking air conditioner is installed on the vehicle, which may lead to water leakage or drainage blockage.
[0006] This invention provides a method for detecting the installation status of a sealing strip for a parking air conditioner. A sealing strip is installed between the vehicle body and the parking air conditioner. The detection method includes: detecting the effective contact area A between the sealing strip and the vehicle body. c Compare the effective contact area A between the sealing strip and the vehicle body. c The first preset value A of the minimum contact area to ensure the sunroof does not leak. c- The second preset value A for the maximum contact area to ensure smooth air conditioning drainage c+ The size of the sealing strip is determined; based on the comparison results, it is determined whether the sealing strip is in the correct installation state.
[0007] In a specific embodiment of the above-mentioned method for detecting the installation status of a sealing strip for a parking air conditioner, the step of "determining whether the sealing strip is in a correct installation state based on the comparison results" further includes: when Ac- ≤A c ≤A c+ At that time, confirm that the sealing strip is in the correct installation state, neither leaking nor blocking water; or, when A c <A c- At that time, confirm that the sealing strip is in a leaky installation state; or, when A c >A c+ At that time, confirm that the sealing strip is in the water-blocking installation state.
[0008] In a specific embodiment of the above-mentioned method for detecting the installation status of the sealing strip of a parking air conditioner, the characteristic is that, "when A..." c <A c- The step of "confirming that the sealing strip is in a leak-proof installation state" further includes: when A c <A c- When this happens, a message will be issued stating "There is a risk of water leakage. Please replace the sealing strip."
[0009] In the specific implementation of the above-mentioned method for detecting the installation status of the sealing strip of a parking air conditioner, "when A..." c >A c+ The step of "confirming that the sealing strip is in the water-blocking installation state" further includes: when A c >A c+ When this happens, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts."
[0010] In a specific embodiment of the above-described method for detecting the installation status of a sealing strip for a parking air conditioner, the detection method further includes: detecting the effective contact area A between the sealing strip and the air conditioner. k Compare the effective contact area A between the sealing strip and the air conditioner. k The first preset value A of the minimum contact area to ensure the sunroof does not leak. k- The second preset value for the maximum contact area to ensure smooth air conditioning drainage Ak+ The size of the sealing strip is determined; based on the comparison results, it is determined whether the sealing strip is in the correct installation state.
[0011] In a specific embodiment of the above-mentioned method for detecting the installation status of a sealing strip for a parking air conditioner, the step of "determining whether the sealing strip is in a correct installation state based on the comparison results" further includes: when A k- ≤A k ≤A k+ At that time, confirm that the sealing strip is in the correct installation state, neither leaking nor blocking water; or, when A k <A k- At that time, confirm that the sealing strip is in a leaky installation state; or, when A k >Ak+ At that time, confirm that the sealing strip is in the water-blocking installation state.
[0012] In the specific implementation of the above-mentioned method for detecting the installation status of the sealing strip of a parking air conditioner, "when A..." k <A k- The step of "confirming that the sealing strip is in a leak-proof installation state" further includes: when A k <A k- When this happens, a message will be issued stating "There is a risk of water leakage. Please replace the sealing strip."
[0013] In the specific implementation of the above-mentioned method for detecting the installation status of the sealing strip of a parking air conditioner, "when A..." k >A k+ The step of "confirming that the sealing strip is in the water-blocking installation state" further includes: when A k >A k+ When this happens, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts."
[0014] The present invention also provides a parking air conditioner, including a processor, the processor being capable of executing any of the above-described technical solutions for detecting the installation status of the sealing strip of the parking air conditioner.
[0015] The present invention also provides a vehicle, including a vehicle processor, which is capable of executing the method for detecting the installation status of the sealing strip for a parking air conditioner as described in any of the above technical solutions.
[0016] By adopting the above technical solution, the present invention can detect whether there is a risk of water leakage or blockage between the vehicle body and the sealing strip. Specifically, the present invention detects the effective contact area A between the sealing strip and the vehicle body. c and A c The first preset value A is the minimum contact area to ensure the sunroof does not leak. c- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. c+ The sizes are compared to determine the effective contact area A between the sealing strip and the vehicle body. c Whether it is within a suitable range, and thus the effective contact area A between the sealing strip and the vehicle body can be determined based on the comparison results. c The size was adjusted to solve the problem that the installation status of the sealing strip could not be detected after the existing parking air conditioner was installed on the vehicle, which could lead to water leakage or drainage blockage. Attached Figure Description
[0017] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
[0018] Figure 1 This is a flowchart of the first embodiment of the method for detecting the installation status of the sealing strip of a parking air conditioner according to the present invention;
[0019] Figure 2 This is a flowchart of a second embodiment of the method for detecting the installation status of a sealing strip for a parking air conditioner according to the present invention. Detailed Implementation
[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.
[0021] It should be noted that in the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0023] First, the problems existing in the current technology are described.
[0024] Existing parking air conditioners typically seal the drainage channel between the air conditioner chassis and the vehicle roof by attaching a sealing strip to prevent leaks. There are generally two existing installation methods: one where the sealing strip is included as a separate accessory in the packaging, and a professional installer (electrician) attaches the sealing strip to the chassis before installing the air conditioner on the roof; this method requires a high level of skill from the electrician. The other method involves pre-installing the sealing strip on the chassis before the air conditioner leaves the factory, allowing for simple installation on the roof. Regardless of the method, the sealing strip must be inspected after installation. If the contact area between the sealing strip and the chassis or roof is too small, leaks may occur due to a poor seal; if the contact area is too large, the sealing strip may obstruct the drainage channel, causing blockages. Therefore, this invention proposes the following technical solution to address these problems.
[0025] like Figure 1 As shown, to address the problem that existing parking air conditioners cannot detect the installation status of the sealing strip after installation on a vehicle, potentially leading to leaks or drainage blockages, this invention first introduces a method for detecting the installation status between the sealing strip and the vehicle body. In the first embodiment of this invention, the method for detecting the installation status of the sealing strip for a parking air conditioner includes:
[0026] S1, Detect the effective contact area A between the sealing strip and the vehicle body. c ;
[0027] S2, Compare the effective contact area A between the sealing strip and the vehicle body. c The first preset value A of the minimum contact area to ensure the sunroof does not leak. c- The second preset value A for the maximum contact area to ensure smooth air conditioning drainage c+ Size;
[0028] S3. Based on the comparison results, determine whether the sealing strip is in the correct installation state.
[0029] In the above steps, step S3 further includes:
[0030] S31, When A c- ≤A c ≤A c+ At this time, confirm that the sealing strip is in the correct installation state, where it neither leaks nor blocks water;
[0031] S32, When A c <A c- At that time, confirm that the sealing strip is in a leaky installation state;
[0032] S33. When A c >A c+ At that time, confirm that the sealing strip is in the water-blocking installation state.
[0033] In the above steps, step S32 further includes:
[0034] S321, When A c <A c- When this happens, a message will be sent saying "There is a risk of water leakage, please replace the sealing strip";
[0035] Step S33 further includes:
[0036] S331, When A c >A c+ When this happens, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts."
[0037] In the case of adopting the above-described implementation method, the application scenario of the above detection method is first described. As mentioned in the background art, there are two methods for installing a parking air conditioner on a vehicle. This implementation method takes the method of placing the sealing strip as an accessory in the packaging box as an example. After the sealing strip is installed on the vehicle body, it is necessary to detect whether the sealing strip is installed in place. In this implementation method, a device capable of obtaining the effective contact area between the sealing strip and the vehicle body is provided by default at the connection between the sealing strip and the vehicle body, such as an area measurement sensor. The area measurement sensor is connected to the vehicle's central control system. The vehicle first controls the area measurement sensor to measure the effective contact area A between the sealing strip and the vehicle body. c Perform the test and obtain A c Then, compare A. c The first preset value A is the minimum contact area to ensure the sunroof does not leak. c- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. c+ The size of the sealing strip can be compared to determine whether it is in the correct installation state. Specifically, when A... c- ≤A c ≤A c+ When the sealing strip is in the correct position, it indicates that the effective contact area between the sealing strip and the vehicle body is appropriate. At this point, the sealing strip is considered to be in a correctly installed state, neither leaking nor blocking water. When A... c <A c- When this occurs, it indicates that the effective contact area between the weatherstripping and the vehicle body is too small. In this case, the sealing effect between the weatherstripping and the vehicle body is poor, and the weatherstripping is in a leaky installation state. At this time, the vehicle's central control system sends a "Leakage risk, please replace the weatherstripping" message to the user or operator, reminding them to reinstall the weatherstripping. On the other hand, when A... c >A c+ If the sealing strip is too large, it indicates that the effective contact area between the sealing strip and the vehicle body is too large. In this case, the sealing strip may occupy the space of the drainage channel on the vehicle body, resulting in poor drainage. Therefore, the sealing strip is determined to be in a water-blocking installation state, and a prompt message is issued to the user or operator: "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts." This reminds the user or operator to reinstall the sealing strip. Alternatively, considering that the sealing strip may be blocking the drainage channel due to loose fastening screws, causing deformation of the sealing strip, the operator can also adjust the effective contact area between the sealing strip and the vehicle body by tightening the fastening screws.
[0038] The advantage of the above implementation method is that by using A c The first preset value A is the minimum contact area to ensure the sunroof does not leak. c- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. c+The sizes are compared to determine the effective contact area A between the sealing strip and the vehicle body. c Whether it is within an appropriate range, and thus be able to promptly notify users or operators of the effective contact area A between the sealing strip and the vehicle body based on the comparison results. c The size was adjusted to resolve the issue of existing parking air conditioners being unable to detect the installation status of the sealing strip after installation, which could lead to potential leaks or drainage blockages. Additionally, regarding the aforementioned first preset value A for the minimum contact area to ensure the sunroof doesn't leak, [further details are needed]. c- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. c+ As those skilled in the art will understand, the size varies depending on the model of the parking air conditioner and the first preset value A of the vehicle model. c- Second preset value A c+ The values are different, therefore the first preset value A c- Second preset value A c+ The specific value can be set by those skilled in the art according to the needs of actual use. This invention does not impose specific limitations on this, as long as the first preset value A is used. c- It can ensure that there will be no water leakage between the sealing strip and the car body, and the second preset value A. c+ It is sufficient to ensure that the effective contact area between the sealing strip and the vehicle body is not too large, thus obstructing the drainage channel.
[0039] The above describes the method for checking whether the sealing strip is installed correctly after it has been installed on the vehicle body. Please refer to the following... Figure 2 This section describes how to ensure the sealing strip is properly installed between the parking air conditioner and the air conditioner unit. Figure 2 This is a flowchart illustrating a second embodiment of the method for detecting the installation status of a sealing strip for a parking air conditioner according to the present invention. The method for detecting the installation status of a sealing strip for a parking air conditioner further includes:
[0040] S01, Test the effective contact area A between the sealing strip and the air conditioner. k ;
[0041] S02, Compare the effective contact area A between the sealing strip and the air conditioner. k The first preset value A of the minimum contact area to ensure the sunroof does not leak. k- The second preset value for the maximum contact area to ensure smooth air conditioning drainage Ak+ Size;
[0042] S03. Based on the comparison results, determine whether the sealing strip is in the correct installation state.
[0043] In the above steps, step S03 further includes:
[0044] S031, When A k- ≤A k ≤A k+ At this time, confirm that the sealing strip is in the correct installation state, where it neither leaks nor blocks water;
[0045] S032, When A k <A k- At that time, confirm that the sealing strip is in a leaky installation state;
[0046] S033, When A k >A k+ At that time, confirm that the sealing strip is in the water-blocking installation state.
[0047] In the above steps, step S032 further includes:
[0048] S0321, When A k <A k- When this happens, a message will be sent saying "There is a risk of water leakage, please replace the sealing strip";
[0049] Step S033 further includes:
[0050] S0331, When A k >A k+ When this happens, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts."
[0051] After installing the sealing strip onto the parking air conditioner and verifying that everything is correct, the parking air conditioner needs to be installed on the roof. After installation, the effective contact area A between the parking air conditioner and the sealing strip needs to be checked. k Similarly, in this embodiment, a device capable of obtaining the effective contact area between the sealing strip and the parking air conditioner is provided by default at the connection point between the sealing strip and the parking air conditioner. This device could be an area measurement sensor, for example. The area measurement sensor is communicatively connected to the parking air conditioner. The parking air conditioner first controls the area measurement sensor to measure the effective contact area A between the sealing strip and the parking air conditioner. k Perform the test and obtain A k Then, compare A. k The first preset value A is the minimum contact area to ensure the sunroof does not leak. k- The second preset value A is the maximum contact area to ensure smooth air conditioning drainage. k+ The size of the sealing strip can be compared to determine whether it is in the correct installation state. Specifically, when A... k- ≤A k ≤A k+When the sealing strip is in the correct position, it indicates that the effective contact area between the sealing strip and the parking air conditioner is appropriate. At this point, the sealing strip is considered to be in a correctly installed state, neither leaking nor blocking water. When A... k <A k- When this occurs, it indicates that the effective contact area between the sealing strip and the parking air conditioner is too small. In this case, the sealing effect between the sealing strip and the parking air conditioner is poor, and the sealing strip is in a leaky installation state. At this time, the parking air conditioner sends a "Leakage risk, please replace the sealing strip" warning message to the user or operator, reminding them to reinstall the sealing strip. On the other hand, when A... k >A k+ If the sealing strip is too large, it indicates that the effective contact area between the sealing strip and the parking air conditioner is too large. In this case, the sealing strip may occupy the space of the drainage channel on the parking air conditioner, resulting in poor drainage. Therefore, the sealing strip is determined to be in a water-blocking installation state, and a prompt message is issued to the user or operator: "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening screws." This reminds the user or operator to reinstall the sealing strip. Alternatively, considering that the sealing strip may be blocking the drainage channel due to loose fastening screws, causing deformation of the sealing strip, the operator can also adjust the effective contact area between the sealing strip and the parking air conditioner by tightening the fastening screws.
[0052] In addition, although the above mentions installing the parking air conditioner on the roof, this is not the only implementation method, nor is it a limitation on the installation position of the parking air conditioner in this invention. Those skilled in the art can also install the parking air conditioner in other locations on the vehicle body, as long as there may be problems with water leakage or drainage blockage between the sealing strip and the vehicle body and the parking air conditioner.
[0053] It is worth mentioning that as the parking air conditioner is used for a longer period of time, the sealing strip may age. Although an aged sealing strip may not immediately cause leakage or blockage, the risk of leakage increases significantly. Moreover, if the sealing strip leaks or becomes blocked when the vehicle is driven out, it will cause serious damage to the environment inside the RV. Therefore, the sealing strip detection method for parking air conditioners of this invention can also determine whether the sealing strip is aging by detecting the effective contact area between the sealing strip and the vehicle body and the parking air conditioner. When the effective contact area A between the sealing strip and the vehicle body... c Or the effective contact area A between the sealing strip and the parking air conditioner k The aging contact area A of the sealing strip is smaller than the preset value. l When the vehicle's central control system sends a message to the user, "The sealing strip is aging, please replace it in time," to remind the user to replace the sealing strip in advance to avoid water leakage when the RV is out and about.
[0054] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.
[0055] In addition, the present invention also provides an air conditioner, including a processor, capable of executing the method for detecting the installation status of the sealing strip of a parking air conditioner in the second embodiment described above.
[0056] In addition, the present invention also provides a vehicle including a vehicle processor capable of executing the method for detecting the installation status of the sealing strip of the parking air conditioner in the first embodiment described above.
[0057] Those skilled in the art will understand that the aforementioned air conditioner and vehicle also include other known structures, such as processors, controllers, and memories. These memories include, but are not limited to, random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), volatile memory, non-volatile memory, serial memory, parallel memory, or registers. Processors include, but are not limited to, CPLD / FPGA, DSP, ARM processors, and MIPS processors. To avoid unnecessarily obscuring the embodiments of this disclosure, these known structures are not shown in the accompanying drawings.
[0058] Although the steps in the above embodiments are described in the above order, those skilled in the art will understand that in order to achieve the effect of this embodiment, different steps do not need to be executed in such order. They can be executed simultaneously (in parallel) or in reverse order, such as S31-S33, S031-S033. The sequence number is only for the convenience of labeling the steps and does not represent the execution order of the steps.
[0059] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.
Claims
1. A method for detecting the installation status of a sealing strip for a parking air conditioner, characterized in that, A sealing strip is installed between the vehicle body and the parking air conditioner. The detection method includes: The effective contact area Ac between the sealing strip and the vehicle body is detected; Compare the effective contact area Ac between the sealing strip and the vehicle body, the first preset value Ac- of the minimum contact area to ensure the sunroof does not leak, and the second preset value Ac+ of the maximum contact area to ensure the air conditioning drains smoothly. Based on the comparison results, it is determined whether the sealing strip is in the correct installation state; The step of "determining whether the sealing strip is in the correct installation state based on the comparison results" further includes: When Ac-≤Ac≤Ac+, confirm that the sealing strip is in a correct installation state that is neither leaking nor blocking water; or, When Ac < Ac-, confirm that the sealing strip is in a leaky installation condition; or, When Ac > Ac+, confirm that the sealing strip is in the water-blocking installation state.
2. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 1, characterized in that, The step of "confirming that the sealing strip is in a leaky installation state when Ac < Ac-" further includes: When Ac < Ac-, a message will be sent saying "There is a risk of water leakage. Please replace the sealing strip." 3. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 1, characterized in that, The step of "confirming that the sealing strip is in a water-blocking installation state when Ac > Ac+" further includes: When Ac > Ac+, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts." 4. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 1, characterized in that, The detection method further includes: The effective contact area Ak between the sealing strip and the air conditioner is measured. Compare the effective contact area Ak between the sealing strip and the air conditioner, the first preset value Ak- of the minimum contact area to ensure the skylight does not leak, and the second preset value Ak+ of the maximum contact area to ensure the air conditioner drains smoothly. Based on the comparison results, it is determined whether the sealing strip is in the correct installation state.
5. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 4, characterized in that, The step of "determining whether the sealing strip is in the correct installation state based on the comparison results" further includes: When Ak-≤Ak≤Ak+, confirm that the sealing strip is in a correct installation state that prevents both leakage and blockage; or, When Ak < Ak-, confirm that the sealing strip is in a leaky installation condition; or, When Ak > Ak+, confirm that the sealing strip is in the water-blocking installation state.
6. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 5, characterized in that, The step of "confirming that the sealing strip is in a leaky installation state when Ak < Ak-" further includes: When Ak < Ak-, a message will be sent saying "There is a risk of water leakage. Please replace the sealing strip." 7. The method for detecting the installation status of the sealing strip for a parking air conditioner according to claim 5, characterized in that, The step of "confirming that the sealing strip is in a water-blocking installation state when Ak > Ak+" further includes: When Ak > Ak+, a message will be issued stating "There is a risk of water blockage. Please replace the sealing strip or adjust the tightness of the fastening bolts." 8. A parking air conditioner, comprising a processor, characterized in that, The processor is capable of executing the method for detecting the installation status of the sealing strip for a parking air conditioner as described in any one of claims 4-7.
9. A vehicle, comprising a vehicle processor, characterized in that, The vehicle processor is capable of executing the method for detecting the installation status of the sealing strip for a parking air conditioner as described in any one of claims 1-3.
Citation Information
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