Ground permeability detection equipment for road maintenance and detection method

Abstract

The invention relates to the field of material permeability testing, in particular to ground permeability detection equipment and method for road maintenance, and the method comprises the following steps: dividing a water storage barrel into a plurality of chambers, respectively arranging an air chamber at the bottom of each chamber, connecting the air chambers at the same position to the same air pump, obtaining the power optimization degree of each chamber, and calculating the power optimization degree of each chamber; the chamber with the maximum power optimization degree in all the chambers connected with each air pump is marked as a reference chamber of each air pump, and the water storage barrels which do not contain any reference chamber are marked as target water storage barrels; and according to the power adjustment degree of the to-be-adjusted cavity in the target water storage barrel and the power receiving interval of the reference water storage barrel, the power of the air pump connected with the to-be-adjusted cavity of the target water storage barrel during next starting is obtained. According to the invention, the penetration detection efficiency is improved when the penetration condition of the road to impurity particles is detected.

Description

Technical Field

[0001] The invention relates to the field of material permeability testing, and in particular to ground permeability testing equipment and a testing method for highway maintenance. Background Art

[0002] Ground permeability testing can help determine whether the road surface has good drainage performance. Good permeability can effectively remove water accumulation and avoid flooding, thereby preventing road damage. If water is retained in the roadbed for a long time, it will soften the soil and reduce its bearing capacity, which will lead to problems such as road subsidence and cracking. CN117388151B discloses a ground permeability testing device and method for highway engineering, which can realize the cleaning and penetration testing of the road surface to be tested. However, the existing permeability testing equipment and testing methods can only detect the penetration of water on the road surface, but the relationship between the permeability of the road and the impurity particles in the water is very important, because these impurity particles may affect the drainage performance of the road surface, the stability of the roadbed and the durability of the overall road, and the existing permeability testing equipment and testing methods cannot directly obtain the penetration of the road to the impurity particles. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a ground permeability detection device and a detection method for highway maintenance.

[0004] The present invention provides a ground permeability detection device and a detection method for highway maintenance using the following technical solutions: An embodiment of the present invention provides a ground permeability detection device for highway maintenance, comprising a water storage barrel and a barrel cover, wherein the number of water storage barrels is greater than 2; the interior of each water storage barrel is divided into a plurality of chambers by a baffle, the bottom of each chamber is provided with an air chamber, each air chamber has an air hole, and each air chamber is connected to an air pump outside the water storage barrel through an air inlet, the number of air pumps is the same as the number of air chambers in each water storage barrel, and the air chambers at the same position in all water storage barrels are connected to the same air pump; Different impurity particles are added to the water in different water storage barrels. At the same time, the chamber where each air chamber is located contains two turbidity sensors and a water level sensor. The two turbidity sensors are a liquid surface turbidity sensor on the liquid surface and a bottom turbidity sensor under the liquid surface. The controller is used to read the output data of the water level sensor, the liquid surface turbidity sensor and the bottom turbidity sensor in each chamber of the water storage barrel, and the controller controls the output power of all air pumps according to the output data.

[0005] Preferably, the air inlet is connected to the air pump via an air delivery hose.

[0006] Preferably, the baffle is fixed on the barrel cover, and the barrel cover is fixed to the water storage barrel through threads, and the barrel cover is provided with an exhaust port.

[0007] Another embodiment of the present invention provides a method for detecting ground permeability for highway maintenance, using the above-mentioned ground permeability detection device for highway maintenance, the method comprising: When the difference between the output data of the liquid surface turbidity sensor and the bottom turbidity sensor in each chamber is greater than a first preset threshold, all the air pumps are started at different powers respectively to obtain the power preference of each chamber, and the calculation method of the power preference includes: obtaining the moment when the difference is equal to 0, and the difference between the moment and the moment when the difference is greater than the first preset threshold is recorded as a, and the power preference is negatively correlated with a and the time when the water surface returns to stability; The chamber with the highest power preference among all the chambers connected to each air pump is recorded as the reference chamber of each air pump, and the water storage bucket that does not contain any reference chamber is recorded as the target water storage bucket; the chamber with the highest power preference in the target water storage bucket is recorded as the chamber to be adjusted in the target water storage bucket; The other water storage buckets other than the target water storage bucket are recorded as reference water storage buckets, and the chamber in the reference water storage bucket that is in the same position as the chamber to be adjusted is recorded as the chamber to be adjusted in the reference water storage bucket; according to the difference between the power preference degree of the chamber to be adjusted in the reference water storage bucket and the power preference degrees of all reference chambers in the reference water storage bucket, the power adjustment degree of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket is obtained; the power adjustment degree is positively correlated with the difference in the power preference degree; According to the power preference degree of the reference chamber in the reference water storage barrel and the power of the air pump connected to the reference chamber, the power acceptance range of the reference water storage barrel is obtained; according to the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel and the power acceptance range of the reference water storage barrel, the power of the air pump connected to the chamber to be adjusted in the target water storage barrel when it is started next time is obtained.

[0008] Preferably, the step of obtaining the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel includes the following specific acquisition steps: For the air pump connected to each reference chamber in the reference water storage bucket, all chambers connected to the air pump are recorded as the same-phase air chambers of each reference chamber, the average of the power preference levels of all the same-phase air chambers in the reference chamber is recorded as B, and the ratio of the power preference level in the reference chamber to B is recorded as the reference degree of each reference chamber. The power preference levels of the reference chambers in the reference water storage bucket are weighted and summed to obtain the comprehensive power preference level b of the reference water storage bucket. The power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel.

[0009] Preferably, the obtaining of the power acceptance interval of the reference water storage bucket includes the following specific steps: The mean power of the air pumps connected to all reference chambers in the reference water storage tank is recorded as Pm, and the mean power preference of all reference chambers is w. Then the power acceptance range is: Where f is the preset adjustment coefficient, and exp() represents an exponential function with a natural constant as the base.

[0010] Preferably, the power of the air pump connected to the chamber to be adjusted in the target water storage barrel when it is started next time includes the following specific steps: For all reference water storage buckets, the intersection of the power acceptance intervals of all reference water storage buckets is recorded as the comprehensive adjustable interval; The average value of the power adjustment degree of the chamber to be adjusted in the target water storage bucket under all reference water storage buckets is recorded as a; The power of the air pump connected to the chamber to be adjusted of the target water storage tank when it was started last time is recorded as P0, then the power P of the air pump connected to the chamber to be adjusted is P=(1-a)×P0+a×Pf, Pf represents the power within the comprehensive adjustable range and with the smallest difference from P0, and the power P is the power of the air pump connected to the chamber to be adjusted of the target water storage tank when it is started next time.

[0011] Preferably, the step of obtaining the power preference of each chamber includes the following specific steps: The difference in output data between the liquid surface turbidity sensor and the bottom turbidity sensor in each chamber is recorded as the difference in turbidity in each chamber; the time when the turbidity difference is equal to 0 is recorded as T1, and the time when the turbidity difference is greater than the first preset threshold th1 is recorded as T2; The initial power optimization degree of each chamber is Q0=exp(-|T1-T2|-Tt), where Tt represents the time for the water surface to return to stability; exp() represents an exponential function with a natural constant as the base; The initial power preference levels of all chambers in all water storage barrels are linearly normalized, and the initial power preference levels after the linear normalization are recorded as the power preference level of each chamber.

[0012] Preferably, the method for judging whether the water surface has recovered stability is: The output data of the water level sensor is recorded as the water surface height; After all the air pumps are started, for each chamber, the water level in the chamber is read in real time at each moment. When the variance of the water level at the most recent moments is less than or equal to a second preset threshold, it is judged that the water surface has returned to stability. If the variance is greater than the second preset threshold, it is judged that the water surface has not returned to stability.

[0013] Preferably, the specific steps for obtaining the difference in turbidity in each chamber are as follows: The output data of the liquid surface turbidity sensor and the bottom turbidity sensor are recorded as liquid surface turbidity and bottom turbidity respectively; The absolute value of the difference between the liquid surface turbidity and the bottom turbidity is recorded as the difference in turbidity in each chamber.

[0014] The beneficial effects of the technical solution of the present invention are: Different impurity particles are added to the water in different water storage barrels in the ground permeability testing equipment provided by the present invention, so that the test results include the water level changes and turbidity changes of the water under each impurity particle during the penetration process, which can reflect the penetration of the highway surface to water containing different impurities.

[0015] Furthermore, when the difference between the output data of the liquid surface turbidity sensor and the bottom turbidity sensor in each chamber is greater than a first preset threshold, all air pumps are started at different powers to obtain the power preference of each chamber, and the chamber with the highest power preference among all chambers connected to each air pump is recorded as the reference chamber of each air pump, and the water storage bucket that does not contain any reference chamber is recorded as the target water storage bucket; the chamber with the highest power preference in the target water storage bucket is recorded as the chamber to be adjusted in the target water storage bucket; The chamber to be adjusted has a higher power preference in the target water storage barrel, but among all the chambers connected to the air pump, the power preference of the chamber to be adjusted is not high. The present invention accurately locates the chamber to which the air pump connected to it needs to be adjusted by obtaining the chamber to be adjusted of the target water storage barrel, thereby avoiding the problem of low penetration efficiency of different impurity particles when the air pumps of other chambers are subsequently adjusted.

[0016] Furthermore, the present invention obtains the power adjustment degree of the chamber to be adjusted in the target water bucket under the reference water bucket according to the difference between the power preference degree of the chamber to be adjusted in the reference water bucket and the power preference degrees of all reference chambers in the reference water bucket; obtains the power acceptance range of the reference water bucket according to the power preference degree of the reference chamber in the reference water bucket and the power of the air pump connected to the reference chamber; the power acceptance range is used to describe a suitable power adjustment range when performing subsequent power adjustment, and the power adjustment range can adapt to the power of the connected air pump.

[0017] Furthermore, the present invention obtains the power of the air pump connected to the chamber to be adjusted in the target water storage barrel at the next start-up according to the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel and the power acceptance interval of the reference water storage barrel. The air pump is operated at the most appropriate power, and the most appropriate working power can quickly restore the water surface of at least one chamber in each water storage barrel 1 to be stable and the turbidity in the chamber can also quickly become consistent, thereby increasing the efficiency of penetration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a first axial schematic diagram of a ground permeability detection device for highway maintenance of the present invention; Figure 2 It is a schematic diagram of the second axis side of a ground permeability detection device for highway maintenance of the present invention; Figure 3 It is a schematic diagram of the internal structure of a water storage bucket of a ground permeability detection device for highway maintenance according to the present invention; Figure 4 It is a schematic cross-sectional view of a water storage bucket of a ground permeability detection device for highway maintenance according to the present invention; Figure 5 It is a flow chart of the steps of a ground permeability detection method for highway maintenance of the present invention.

[0020] In the figure: 1. water storage barrel; 2. barrel cover; 3. road; 4. partition; 5. air chamber; 501. first air chamber; 502. second air chamber; 503. third air chamber; 504. fourth air chamber; 6. air pump; 601. first air pump; 602. second air pump; 603. third air pump; 604. fourth air pump; 7. air inlet; 8. exhaust port; 9. air hose; 10. water level sensor; 11. liquid surface turbidity sensor; 12. bottom turbidity sensor; 13. controller. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the ground permeability detection equipment and detection method for highway maintenance proposed by the present invention, its specific implementation method, structure, characteristics and effects, in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0022] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0023] The specific scheme of the ground permeability detection equipment and detection method for highway maintenance provided by the present invention is described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1: See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , which shows a ground permeability detection device for highway maintenance provided by an embodiment of the present invention, the device includes a plurality of water storage barrels 1; there are 4 water storage barrels 1 in this embodiment, and the number of water storage barrels 1 can be set to other values ​​in other embodiments, such as 2 or 8, which is not specifically limited in this embodiment; each water storage barrel is placed on the road surface of the highway 3, and the water storage barrel 1 is filled with water, and different impurity particles are added to the water in different water storage barrels 1, and the impurity particles include dust particles of different diameters. In other embodiments, other impurity particles can be added, such as sand, clay, carbon particles, etc., as long as different water storage barrels 1 have different impurity particles, and the size and composition of the impurity particles are not limited in this embodiment.

[0025] Furthermore, the entire water storage space in the water storage barrel 1 is divided into several chambers by the baffle 4, and in this embodiment, it is equally divided into four chambers; the baffle 4 has several holes to facilitate the connection of the various chambers; each chamber has an air chamber 5 at the bottom, and the air chamber 5 is a hollow plastic box, and each surface of the air chamber 5 has several air holes, and each air chamber 5 is connected to the air inlet 7 at the lower end of the water storage barrel 1, and the air inlet 7 is connected to the air pump 6 outside the water storage barrel 1. The air inlet 7 is connected to the air pump 6 through an air delivery hose 9, and the number of air pumps 6 is the same as the number of air chambers 5 in each water storage barrel 1 (that is, there are four air pumps 6 in this embodiment), and the air chambers 5 at the same position in all water storage barrels 1 are connected to the same air pump 6, and the air chambers 5 at different positions are connected to different air pumps 6.

[0026] For example, the air chamber 5 at the bottom of the chamber in each water storage barrel 1 is respectively recorded as the first air chamber 501, the second air chamber 502, the third air chamber 503, and the fourth air chamber 504; all the air pumps 6 are respectively recorded as the first air pump 601, the second air pump 602, the third air pump 603, and the fourth air pump 604; the first air chamber 501 in all water storage barrels 1 is connected to the first air pump 601, the second air chamber 502 in all water storage barrels 1 is connected to the second air pump 602, the third air chamber 503 in all water storage barrels 1 is connected to the third air pump 603, and the fourth air chamber 504 in all water storage barrels 1 is connected to the fourth air pump 604.

[0027] The lid 2 of the water storage barrel 1 is provided with an exhaust port 8 for exhausting the gas in the water storage barrel 1. Meanwhile, the baffle plate 4 is fixed on the lid 2, and the lid 2 is screwed and fixed on the water storage barrel 1 by a threaded engagement method. When the lid 2 is screwed off, the baffle plate 4 is also taken off.

[0028] A water level sensor 10 is installed in each chamber of each water storage barrel 1 to detect the height of the water surface. The water level sensor 10 in this embodiment is a capacitive water level sensor. Other types of water level sensors 10 may be used in other embodiments, such as an ultrasonic water level sensor or a pressure water level sensor.

[0029] A liquid level turbidity sensor 11 is placed on the water surface in each chamber. The liquid level turbidity sensor 11 can be fixed under the floating ball so that the liquid level turbidity sensor 11 can detect the turbidity at the water surface. A bottom turbidity sensor 12 is fixed at the bottom of the water surface to detect the turbidity of the bottom of the water.

[0030] The purpose of the above-mentioned equipment having multiple water storage barrels 1 and adding different impurity particles into the water storage barrels 1 is to facilitate the detection of the penetration of water mixed with different impurities on the road surface of highway 3. The more water storage barrels 1 there are, the richer the types and sizes of the impurity particles are, and the more comprehensive the penetration of the road surface of highway 3 can be detected.

[0031] The purpose of installing the air chamber 5 at the bottom of each water storage barrel 1 is to consider that when water containing impurities infiltrates, there may be inconsistent turbidity in the upper and lower parts of the water storage barrel 1. For example, during the water infiltration process, impurities in the water near the water surface will settle below the water surface (that is, the turbidity of the upper part of the water is small, and the turbidity of the lower part of the water is large). The inconsistent distribution of impurities (that is, inconsistent turbidity) will lead to unreliable penetration test results of the road surface, and even a large amount of impurities will settle at the bottom of the water, blocking the penetration process of water and impurities. The air pump 6 of this embodiment blows air into the air chamber 5, and the blown air is blown out from the air hole of the air chamber 5. The turbidity of water with inconsistent turbidity will gradually become consistent under the action of the blown air.

[0032] Each water storage barrel 1 is divided into a plurality of chambers. One of the purposes is that the air blown out from the air chamber 5 makes the water surface unstable (that is, there are ripples and fluctuations on the water surface). After the water storage barrel 1 is divided into a plurality of chambers, the water surface area of ​​each chamber is small. When the air is stopped from being blown into the air chamber 5, the water surface is easy to return to stability.

[0033] An air chamber 5 is distributed under each chamber of each water storage barrel 1, and its purpose is: considering that the impurity particles in different water storage barrels 1 are different, when the water with inconsistent turbidity becomes consistent by blowing air, in order to quickly make the turbidity consistent and the water surface quickly restore stability (the water surface height can only be obtained after the water surface restores stability), the air pump 6 connected to the air chamber 5 in each water storage barrel 1 needs to work with appropriate power. If the power of the air pump 6 is too small, it will take a long time to make the turbidity consistent (but the water surface is easy to restore stability). If the power of the air pump 6 is too large, it only takes a short time to make the turbidity consistent (but the water surface is not easy to restore stability). Therefore, only when the power of the air pump 6 is appropriate, the water surface can be quickly restored to stability and the turbidity can also be quickly made consistent. If each water storage barrel 1 is only equipped with one air chamber 5, the appropriate power of the air pump 6 cannot be obtained. In this embodiment, each water storage barrel 1 is equipped with multiple air chambers 5 (that is, one air chamber 5 is distributed under each chamber), and the air chambers 5 can be connected to different air pumps 6 respectively. These air pumps 6 work at different powers, and then the most appropriate power can be obtained therefrom.

[0034] In summary, in this embodiment, each water storage barrel 1 is divided into multiple chambers, and an air chamber 5 is distributed under each chamber. The air chambers 5 under all chambers are respectively connected to different air pumps 6 (corresponding to the above-mentioned air chambers 5 at the same position in all water storage barrels 1 are connected to the same air pump 6, and air chambers 5 at different positions are connected to different air pumps 6). Based on this, the most suitable working power of the air pump 6 can be obtained, and the most suitable working power can make the water surface of at least one chamber in each water storage barrel 1 quickly return to stability and the turbidity in the chamber can also quickly become consistent. This increases the efficiency of penetration detection.

[0035] The working principle of the permeability detection equipment in this embodiment is: all water storage barrels 1 are placed on the road surface of the highway 3, different impurity particles are added to the water in each water storage barrel 1 and stirred evenly, and the water level output by the water level sensor 10 and the turbidity output by the liquid surface turbidity sensor 11 and the bottom turbidity sensor 12 are read in real time (recorded as liquid surface turbidity and bottom turbidity, respectively).

[0036] When the difference between the turbidity of the liquid surface and the turbidity of the bottom of the water in the water storage barrel 1 is greater than the set threshold, all the air pumps 6 are started to restore the water in the chamber of the water storage barrel 1 to a state of uniform turbidity. When the water is restored to a state of uniform turbidity, the air pumps 6 are stopped. When the water surface of each chamber is stable, the water surface height is recorded, and the average of the turbidity of the liquid surface and the turbidity of the bottom of the water (recorded as the average turbidity) is recorded. This process is repeated until the permeability test is completed, and the recorded water surface height and average turbidity are used as the test results.

[0037] When the difference between the turbidity of the liquid surface and the turbidity of the water bottom in all chambers is not greater than the threshold value, all the air pumps 6 are not started, and the water surface height and the average turbidity can be directly recorded.

[0038] The test results obtained above include the water level changes and turbidity changes of the water under each impurity particle during the infiltration process, which can reflect the infiltration of water containing different impurities on the road surface.

[0039] Embodiment 2: like Figure 5 As shown, this embodiment provides a method for detecting ground permeability for highway maintenance, which is used to describe the specific working principle and detection method of the permeability detection equipment, including: Step S001, control the start and stop of the air pump according to the difference between the turbidity of the liquid surface and the turbidity of the water bottom, and obtain the power optimization degree of each chamber.

[0040] In this embodiment, the liquid surface turbidity refers to the turbidity output by the liquid surface turbidity sensor 11 , and the water bottom turbidity refers to the turbidity output by the bottom turbidity sensor 12 .

[0041] During the permeability test (i.e. after all water storage barrels 1 are placed on the road surface and the foreign particles in the water storage barrels 1 are evenly stirred), for each chamber in each water storage barrel 1, the water level and average turbidity in each chamber are read in real time.

[0042] The absolute value of the difference between the turbidity of the liquid surface and the turbidity of the water bottom is obtained, and recorded as the difference in turbidity of each chamber; for all chambers in all water storage barrels 1, when there is a chamber whose turbidity difference is greater than the first preset threshold th1, it means that the difference between the turbidity of the liquid surface and the turbidity of the water bottom is large, and all air pumps 6 are started at this time.

[0043] When the difference in turbidity of all chambers is not greater than the first preset threshold value th1, the air pump 6 is not started. When the air pump 6 is not started, the water level and average turbidity in each chamber read at each moment (ie, every second) are recorded.

[0044] In this embodiment, th1=30NTU is used as an example for description. In other embodiments, it can be set to other values, which are not limited in this embodiment, wherein NTU represents the unit of turbidity.

[0045] When all the air pumps 6 are started, the working power of each air pump 6 is different. For example, in this embodiment, the working power of all the air pumps 6 is 10%, 40%, 70% and 100% of the rated power respectively. In other embodiments, the power of the air pump 6 can be set to other values. It is only necessary to ensure that the power is different. This embodiment does not make specific limitations.

[0046] During the process of starting the air pump 6, the turbidity of the water in each chamber is changing. When the difference in turbidity of all chambers in all water storage barrels 1 is equal to 0, all air pumps 6 are stopped.

[0047] For each chamber, the moment when the difference in turbidity in the chamber is equal to 0 is obtained, recorded as T1, and the moment when the difference in turbidity in the chamber is greater than the first preset threshold th1 (that is, the moment when the air pump 6 is started) is obtained, recorded as T2. The power preference of each chamber is obtained according to the difference between T1 and T2, and the time when the water surface of the chamber is restored to stability after the air pump 6 is stopped. The power preference of each chamber is negatively correlated with the difference between T1 and T2, and negatively correlated with the time when the water surface is restored to stability.

[0048] As an example, a method for determining whether the water surface has returned to stability is: after all the air pumps 6 are started, for each chamber, the water surface height in the chamber is read in real time at each moment. When the variance of the water surface heights at the most recent five moments is less than or equal to a second preset threshold value th2 (for example, th2=0.3), it is determined that the water surface has returned to stability. If the variance is greater than th2, it is determined that the water surface has not returned to stability.

[0049] As an example, the method for obtaining the power preference of each chamber includes: Q0=exp(-|T1-T2|-Tt), where Tt is the time it takes for the water surface to return to stability. Q0 represents the initial power preference of each chamber, and exp() represents an exponential function with a natural constant as the base.

[0050] Then, the initial power preference levels of all chambers in all water storage barrels 1 are linearly normalized, and the initial power preference levels after the linear normalization are recorded as the power preference level of each chamber. The purpose of the linear normalization is to remove the dimension.

[0051] As another example, a method for obtaining the power preference of each chamber includes: Replace the above Q0 calculation formula with: .

[0052] Step S002: Divide all water storage buckets into target water storage buckets and reference water storage buckets according to the power optimization degree of each chamber, and obtain the power adjustment degree of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket.

[0053] For all the air chambers 5 connected to each air pump 6; for example, the first air pump 601 is connected to the first air chamber 501 in all the water storage barrels 1, the second air pump 602 is connected to the second air chamber 502 in all the water storage barrels 1, the third air pump 603 is connected to the third air chamber 503 in all the water storage barrels 1, and the fourth air pump 604 is connected to the fourth air chamber 504 in all the water storage barrels 1; Among the chambers where all the air chambers 5 connected to each air pump 6 are located (referred to as the chambers connected to each air pump 6), the chamber with the highest power preference is recorded as the reference chamber of each air pump 6, and the water storage bucket 1 that does not contain any reference chamber is recorded as the target water storage bucket.

[0054] The reference chamber of each air pump 6 described above describes that the turbidity and water level in the reference chamber can be restored to consistency and stability at an early stage, and the power corresponding to the air pump 6 is relatively suitable for the reference chamber.

[0055] The target water storage bucket describes that: the power of all current air pumps 6 is not suitable for the target water storage bucket, that is, for any chamber in the target water storage bucket, the power of all air pumps 6 cannot make the turbidity and water surface of the chamber return to consistency and stability earlier. Therefore, it is necessary to regulate the power of the air pump 6 so that the power of the air pump 6 can adapt to the chamber in the target water storage bucket when it works next time.

[0056] For all chambers in the target water storage barrel, the chamber with the highest power preference is recorded as the chamber to be adjusted of the target water storage barrel. The chamber to be adjusted has a higher power preference in the target water storage barrel, but among all chambers connected to the air pump 6, the power preference of the chamber to be adjusted is not large. In this embodiment, the chamber to be adjusted of the target water storage barrel refers to: the chamber to which the air pump 6 connected needs to be adjusted.

[0057] Other water storage barrels 1 other than the target water storage barrel are recorded as reference water storage barrels, and the chamber in the reference water storage barrel that is at the same position as the above-mentioned chamber to be adjusted and is recorded as the chamber to be adjusted in the reference water storage barrel.

[0058] For example, the chamber to be adjusted of the target water storage bucket is the chamber where the first air chamber 501 in the target water storage bucket is located, then the chamber of the first air chamber 501 in the reference water storage bucket is recorded as the chamber to be adjusted in the reference water storage bucket.

[0059] According to the difference between the power preference degree of the chamber to be adjusted in the reference water storage bucket and the power preference degrees of all reference chambers in the reference water storage bucket, the power adjustment degree of the chamber to be adjusted in the target water storage bucket is obtained; the power adjustment degree is positively correlated with the difference in the power preference degree; The greater the difference between the power preference of the chamber to be adjusted in the reference water storage barrel and the power preference of all reference chambers in the reference water storage barrel, it means that for the reference water storage barrel, the power of the air pump 6 connected to the chamber to be adjusted in the reference water storage barrel is not suitable for the reference water storage barrel when it is working (that is, it cannot make the turbidity and water surface in the reference water storage barrel quickly return to consistency and stability); the smaller the difference, relatively speaking, the power of the air pump 6 connected to the reference chamber of the reference water storage barrel can be well adapted to the reference water storage barrel when it is working (that is, it can make the turbidity in the reference water storage barrel The water surface is consistent and stable). Turbidity and water surface quickly recover to be consistent and stable); In summary, when the difference in the above-mentioned power preference degree is large, it means that the reference water storage bucket has at least one reference chamber other than the chamber to be adjusted, and the power of the air pump 6 connected to it is appropriate and adapted, and compared with the chamber to be adjusted of the reference water storage bucket, the power of the air pump 6 connected to the chamber to be adjusted can be adjusted to a greater extent. Since the chamber to be adjusted in the target water storage bucket and the chamber to be adjusted in the reference water storage bucket are connected to the same water pump 6, the power adjustment degree of the chamber to be adjusted in the target water storage bucket is greater.

[0060] It should be noted that the power adjustment degree of the chamber to be adjusted in the target water storage bucket is calculated based on any reference water storage bucket, so the power adjustment degree of the chamber to be adjusted in the target water storage bucket obtained based on the reference water storage bucket is simply referred to as the power adjustment degree of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket. The power adjustment degree of the chamber to be adjusted in the target water storage bucket obtained for different reference water storage buckets may be different.

[0061] As an optional example, according to the difference between the power preference degree of the chamber to be adjusted in the reference water storage bucket and the power preference degree in all reference chambers in the reference water storage bucket, the power adjustment degree of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket is obtained, and the specific calculation method includes: The power optimization degree of the chamber to be adjusted in the reference water storage tank is denoted as a; For all reference chambers of the reference water storage bucket, the mean value of the power preference of all reference chambers is recorded as b, and The power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel.

[0062] As a preferred example, according to the difference between the power preference level in the chamber to be adjusted in the reference water storage bucket and the power preference level in all reference chambers in the reference water storage bucket, the power adjustment level of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket is obtained, and the specific calculation method included is: For the air pump 6 connected to each reference chamber in the reference water storage bucket, all chambers connected to the air pump 6 are recorded as the same-phase air chambers of each reference chamber, the average of the power preference levels of the same-phase air chambers of the reference chambers is recorded as B, and the ratio of the power preference level in the reference chamber to B is recorded as the reference degree of each reference chamber. The power preference levels of the reference chambers are weighted and summed using the reference degrees of all reference chambers in the reference water storage bucket to obtain the comprehensive power preference level b of the reference water storage bucket. The power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel.

[0063] It should be noted that the reference degree of the above-mentioned reference chamber needs to be normalized after being obtained. This embodiment uses a softmax function for normalization to ensure that the sum of the reference degrees after normalization is equal to 1.

[0064] Compared with the optional example, the above-mentioned preferred example integrates other chambers connected to the same air pump 6 as the reference chamber, and more accurately reflects the adaptation of the power of the air pump 6 connected to the reference chamber of the reference water storage barrel to the reference chamber, so that the obtained power regulation degree is more reliable.

[0065] Step S003, obtaining the power acceptance range of the reference water storage bucket according to the power preference degree of the reference water storage bucket in the reference chamber and the power of the air pump 6 connected to the reference chamber.

[0066] The power acceptance range describes the expected power range of the air pump 6 connected to each chamber of the reference water storage barrel. The expected power range is an approximate power range. When the air pump 6 works within the power range, the turbidity and water level in the chamber connected to the air pump 6 can quickly return to consistency and stability.

[0067] As an example, according to the power preference level in the reference chamber in the reference water storage barrel and the power of the air pump 6 connected to the reference chamber, the power acceptance range of the reference water storage barrel is obtained, including the method of: The power of the air pump 6 connected to the reference chamber refers to the power of the air pump 6 when it worked last time. The mean power of the air pump 6 connected to all reference chambers is recorded as Pm. The mean power preference of all reference chambers is w. The power acceptance interval is , wherein f is a preset adjustment coefficient. This embodiment is described by taking f=0.8 as an example. Other values ​​may be set in other embodiments, and this embodiment does not specifically limit this.

[0068] The larger w is, the smaller the range of the power acceptance interval is, that is, the more the reference chamber of the reference water storage bucket can adapt to the power of the air pump 6 connected to it (that is, the power Pm), and the power acceptance interval of the reference water storage bucket should be in a smaller range near Pm; on the contrary, the smaller w is, the larger the range of the power acceptance interval is, that is, the less the reference chamber of the reference water storage bucket can adapt to the power of the air pump 6 connected to it (that is, the power Pm), and the power acceptance interval of the reference water storage bucket should be in a larger range near Pm.

[0069] Step S004, obtaining the starting power of the air pump connected to the chamber to be adjusted in the target water storage barrel by referring to the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the water storage barrel and the power acceptance interval of the reference water storage barrel.

[0070] The power of the air pump obtained in this step (ie, the power of the air pump 6 connected to the chamber to be adjusted of the target water storage barrel) describes: the power when the air pump 6 connected to the chamber to be adjusted is started next time.

[0071] As an example, the power of the air pump 6 connected to the chamber to be adjusted of the target water storage barrel is calculated as follows: For all reference water storage buckets, the intersection of the power acceptance intervals of all reference water storage buckets is recorded as the comprehensive adjustable interval.

[0072] The average value of the power adjustment degree of the chamber to be adjusted in the target water storage bucket under all reference water storage buckets is recorded as a; The power of the air pump 6 connected to the chamber to be adjusted of the target water storage tank when it was last started is recorded as P0, then the power of the air pump 6 (that is, the power of the air pump 6 when it is started next time) P=(1-a)×P0+a×Pf, Pf represents the power within the comprehensive adjustable range and with the smallest difference from P0.

[0073] In other embodiments, Pf may be replaced by the average value of all powers within the comprehensive adjustable interval. It should be noted that when the comprehensive adjustable interval does not exist, Pf=P0.

[0074] As another example, the power of the air pump 6 connected to the chamber to be adjusted of the target water storage barrel is calculated as follows: When a is greater than a preset adjustment threshold (eg, 0.4), let P=Pf, otherwise P=P0.

[0075] This embodiment is summarized as follows: In this embodiment, firstly, all the air pumps 6 are started at different preset powers (see step S001 for details). When the turbidity and water surface of all the water storage barrels 1 return to stability, all the air pumps 6 are stopped. Then, the power of the air pump 6 connected to the chamber to be adjusted of the target water storage barrel is calculated based on the reference chamber of the reference water storage barrel (i.e., the power at the next start).

[0076] It should be additionally explained that for other air pumps 6 other than the air pump 6 connected to the chamber to be adjusted of the target water storage barrel, the power of other air pumps 6 remains unchanged, that is, the power at the next startup is equal to the power at the previous startup.

[0077] It should also be noted that when there are multiple target water storage barrels, and the positions of the chambers to be adjusted of the target water storage barrels are the same (at this time, the powers P of multiple air pumps 6 will be obtained), then the average of the powers of the air pumps 6 connected to the chambers to be adjusted of all target water storage barrels is used as the final power of the air pump 6. In other embodiments, the average value can also be replaced by the minimum value, that is, the minimum value of the powers of the air pumps 6 connected to the chambers to be adjusted of all target water storage barrels is used as the final power of the air pump 6, the purpose of which is to save electrical power.

[0078] During the permeability test, whenever the difference in turbidity described in step S001 is greater than the first preset threshold value th1, all air pumps 6 are started, and the power of the air pump 6 is the power calculated above. Then, the power of the air pump 6 is calculated again according to the above steps S001-S004 (i.e., the power at the next start).

[0079] Thus, in this embodiment, the power of the air pump 6 is continuously adjusted during the permeability detection process, so that the turbidity and water surface of the water in the water storage tank can be quickly restored to consistency and stability, thereby improving the detection efficiency while ensuring the credibility of the permeability detection process.

[0080] Embodiment three: This embodiment provides a method for processing the detection results after the permeability detection process is completed.

[0081] First of all, it should be noted that in the above embodiment, the water level and average turbidity in each chamber are recorded during the permeability detection process (see step S001 for details). After each stop and start of the air pump 6, the water level and average turbidity in each chamber are recorded only when the water level in each chamber is stable. The water level in each chamber during the entire permeability detection process constitutes a water level curve (the horizontal axis is the recording time, and the vertical axis is the water level), and the average turbidity in each chamber also constitutes a turbidity curve (the horizontal axis is the recording time, and the vertical axis is the average turbidity).

[0082] The water level curve and turbidity curve corresponding to each chamber are fitted into a straight line, and the slopes of the straight lines are recorded as the first rate and the second rate of each chamber.

[0083] The average of the first rates of all chambers in the same water storage barrel 1 is recorded as the water penetration rate, and the average of the second rates of all chambers in the same water storage barrel 1 is recorded as the impurity penetration rate.

[0084] The water infiltration rate and impurity infiltration rate of all water storage barrels 1 are sent to the highway inspection terminal through the 5G network and displayed. The highway inspection personnel judge whether the highway pavement is qualified based on the water infiltration rate and impurity infiltration rate. For example, when the variance of the water infiltration rate of all water storage barrels 1 is greater than 0.3, it means that different impurities have a greater impact and interference on water penetration, which means that the highway pavement cannot efficiently infiltrate water under the interference of multiple impurities, and the highway pavement monitoring result is unqualified.

[0085] Whether the road surface is qualified according to the water penetration rate and the impurity penetration rate needs to be determined according to the specific implementation scenario, and this embodiment does not limit the specific method.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground permeability detection device for highway maintenance, comprising a water storage bucket (1) and a bucket cover (2), characterized in that: The number of water storage barrels (1) is greater than 2; the interior of each water storage barrel (1) is divided into a plurality of chambers by a baffle (4); the bottom of each chamber has an air chamber (5); each air chamber (5) has an air hole; each air chamber (5) is connected to an air pump (6) outside the water storage barrel (1) through an air inlet (7); the number of air pumps (6) is the same as the number of air chambers (5) in each water storage barrel (1); and the air chambers (5) at the same position in all water storage barrels (1) are connected to the same air pump (6); Different impurity particles are added to the water in different water storage barrels (1), and each air chamber (5) contains two turbidity sensors and a water level sensor (10), wherein the two turbidity sensors are a liquid surface turbidity sensor (11) located above the liquid surface and a bottom turbidity sensor (12) located below the liquid surface. The controller (13) is used to read the output data of the water level sensor (10), the liquid surface turbidity sensor (11), and the bottom turbidity sensor (12) in each chamber of the water storage barrel (1), and the controller (13) controls the output power of all the air pumps (6) according to the output data.

2. A ground permeability detection device for highway maintenance according to claim 1, characterized in that: The air inlet (7) is connected to the air pump (6) via an air delivery hose (9).

3. A ground permeability detection device for highway maintenance according to claim 1, characterized in that: The baffle (4) is fixed on the barrel cover (2), and the barrel cover (2) is fixed on the water storage barrel (1) through threads. The barrel cover (2) is provided with an exhaust port (8).

4. A method for detecting ground permeability for highway maintenance, using the ground permeability detection device for highway maintenance according to claim 1, characterized in that: The method comprises: When the difference between the output data of the liquid surface turbidity sensor (11) and the bottom turbidity sensor (12) in each chamber is greater than a first preset threshold value, all the air pumps (6) are started at different powers to obtain the power preference of each chamber, wherein the power preference calculation method comprises: obtaining the moment when the difference is equal to 0, the difference between the moment and the moment when the difference is greater than the first preset threshold value is recorded as a, and the power preference is negatively correlated with a and the time when the water surface returns to stability; The chamber with the highest power preference among all the chambers connected to each air pump (6) is recorded as the reference chamber of each air pump (6), and the water storage bucket (1) that does not contain any reference chamber is recorded as the target water storage bucket; the chamber with the highest power preference in the target water storage bucket is recorded as the chamber to be adjusted in the target water storage bucket; The other water storage buckets (1) outside the target water storage bucket are recorded as reference water storage buckets, and the chamber in the reference water storage bucket that is in the same position as the chamber to be adjusted is recorded as the chamber to be adjusted in the reference water storage bucket; according to the difference between the power preference degree of the chamber to be adjusted in the reference water storage bucket and the power preference degrees of all reference chambers in the reference water storage bucket, the power adjustment degree of the chamber to be adjusted in the target water storage bucket under the reference water storage bucket is obtained; the power adjustment degree is positively correlated with the difference in the power preference degree; The power acceptance interval of the reference water storage barrel is obtained based on the power preference degree of the reference chamber in the reference water storage barrel and the power of the air pump (6) connected to the reference chamber; and the power of the air pump (6) connected to the chamber to be adjusted in the target water storage barrel when it is started next time is obtained based on the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel and the power acceptance interval of the reference water storage barrel.

5. A method for detecting ground permeability for highway maintenance according to claim 4, characterized in that: The specific acquisition steps of obtaining the power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel are as follows: For the air pump (6) connected to each reference chamber in the reference water storage bucket, all chambers connected to the air pump (6) are recorded as the same-phase air chambers of each reference chamber, the average of the power preference levels of all the same-phase air chambers of the reference chamber is recorded as B, and the ratio of the power preference level in the reference chamber to B is recorded as the reference degree of each reference chamber. The power preference levels of the reference chambers are weighted and summed using the reference degrees of all the reference chambers in the reference water storage bucket to obtain the comprehensive power preference level b of the reference water storage bucket. The power adjustment degree of the chamber to be adjusted in the target water storage barrel under the reference water storage barrel.

6. A method for detecting ground permeability for highway maintenance according to claim 4, characterized in that: The specific steps of obtaining the power acceptance range of the reference water storage bucket are as follows: The mean value of the power of the air pump (6) connected to all reference chambers in the reference water storage tank is recorded as Pm, and the mean value of the power preference of all reference chambers is w, then the power acceptance range is: Where f is the preset adjustment coefficient, and exp() represents an exponential function with a natural constant as the base.

7. A method for detecting ground permeability for highway maintenance according to claim 4, characterized in that: The power of the air pump (6) connected to the chamber to be adjusted in the target water storage barrel when it is started next time includes the following specific steps: For all reference water storage buckets, the intersection of the power acceptance intervals of all reference water storage buckets is recorded as the comprehensive adjustable interval; The average value of the power adjustment degree of the chamber to be adjusted in the target water storage bucket under all reference water storage buckets is recorded as a; The power of the air pump (6) connected to the chamber to be adjusted of the target water storage tank at the last start-up is recorded as P0, then the power P of the air pump (6) connected to the chamber to be adjusted is P=(1-a)×P0+a×Pf, Pf represents the power within the comprehensive adjustable range and with the smallest difference from P0, and the power P is the power of the air pump (6) connected to the chamber to be adjusted of the target water storage tank at the next start-up.

8. A method for detecting ground permeability for highway maintenance according to claim 4, characterized in that: The specific steps of obtaining the power optimization degree of each chamber are as follows: The difference in output data from the liquid surface turbidity sensor (11) and the bottom turbidity sensor (12) in each chamber is recorded as the difference in turbidity in each chamber; the time when the turbidity difference is equal to 0 is recorded as T1, and the time when the turbidity difference is greater than a first preset threshold value th1 is recorded as T2; The initial power optimization degree of each chamber is Q0=exp(-|T1-T2|-Tt), where Tt represents the time for the water surface to return to stability; exp() represents an exponential function with a natural constant as the base; The initial power preference levels of all chambers in all water storage barrels (1) are linearly normalized, and the initial power preference levels after the linear normalization are recorded as the power preference level of each chamber.

9. A method for detecting ground permeability for highway maintenance according to claim 4 or 8, characterized in that: The method for judging whether the water surface has recovered stability is as follows: The output data of the water level sensor (10) is recorded as the water surface height; After all the air pumps (6) are started, the water level in each chamber is read in real time at each moment. When the variance of the water level at the most recent moments is less than or equal to a second preset threshold, it is determined that the water surface has stabilized. If the variance is greater than the second preset threshold, it is determined that the water surface has not stabilized.

10. A method for detecting ground permeability for highway maintenance according to claim 8, characterized in that: The specific steps for obtaining the difference in turbidity in each chamber are as follows: The output data of the liquid surface turbidity sensor (11) and the bottom turbidity sensor (12) are recorded as liquid surface turbidity and bottom turbidity respectively; The absolute value of the difference between the liquid surface turbidity and the bottom turbidity is recorded as the difference in turbidity in each chamber.

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