CN115096511B - Rain test box improvement method based on natural rainfall mechanism - Google Patents
Rain test box improvement method based on natural rainfall mechanism Download PDFInfo
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- CN115096511B CN115096511B CN202210662986.3A CN202210662986A CN115096511B CN 115096511 B CN115096511 B CN 115096511B CN 202210662986 A CN202210662986 A CN 202210662986A CN 115096511 B CN115096511 B CN 115096511B
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Abstract
The invention relates to the technical field of rain test boxes, and discloses a rain test box improvement method based on a natural rainfall mechanism, which comprises the following steps: placing an electronic product to be tested on a lifting rotating mechanism, and respectively carrying out a rain dripping test and a rain test on the electronic product to be tested through a rain dripping pipe network and a rain dripping pipe network; acquiring a raindrop image set during the raindrop test and the raindrop test through a camera, and extracting characteristics of the raindrop image set; when the rain dripping test and the rain test are carried out, the airflow set of the rain dripping test and the rain test is obtained through the airflow sensor, and the first air blower and the first air direction adjusting sheet, and the second air blower and the second air direction adjusting sheet are respectively controlled to adjust the wind power and the wind direction of the rain dripping test and the rain test; and moving the lifting and rotating mechanism out of the box body of the test box, and placing n uniformly distributed rainfall collecting cups at the bottom end of the box body of the test box. The invention can solve the technical problem that the existing rain test box can not simulate natural rainfall to realize rain.
Description
Technical Field
The invention relates to the technical field of rain test boxes, in particular to a rain test box improvement method and device based on a natural rainfall mechanism, electronic equipment and a computer readable storage medium.
Background
The rain test method is an artificial environment test method, which simulates the influence of the tested equipment after encountering natural rainfall or dripping environment factors under the use condition, and electronic products, equipment or elements are influenced by various water in different degrees no matter in the working state or the storage state, wherein the influence of rain is the most common, and some equipment has rain-proof measures but is also influenced by condensed water or leaking water exposed on the upper surface of the equipment. Usually use the rain proof box to test the resistant ability to drench with rain of electronic product, equipment or component, current rain proof box rain condition is simple, can't satisfy electronic product, equipment or component and do the rain test under multiple condition, although also can satisfy the rain requirement, but current rain proof box can't simulate the natural rainfall and realize the rain test.
Disclosure of Invention
The invention provides a method and a device for improving a rain test box based on a natural rainfall mechanism, electronic equipment and a computer readable storage medium, and mainly aims to solve the technical problem that the existing rain test box cannot simulate natural rainfall to realize rain.
In order to achieve the above purpose, the invention provides a method for improving a raining test box based on a natural rainfall mechanism, which comprises the following steps:
placing an electronic product to be tested on a lifting rotating mechanism, and respectively carrying out a rain dripping test and a rain test on the electronic product to be tested through a rain dripping pipe network and a rain dripping pipe network;
acquiring a raindrop image set during the raindrop test and the raindrop test through a camera, and extracting characteristics of the raindrop image set;
when the rain dripping test and the rain test are carried out, the airflow set of the rain dripping test and the rain test is obtained through the airflow sensor, and the first air blower and the first air direction adjusting sheet, and the second air blower and the second air direction adjusting sheet are respectively controlled to adjust the wind power and the wind direction of the rain dripping test and the rain test;
moving the lifting and rotating mechanism out of the box body of the test box, placing n uniformly distributed rainfall collecting cups at the bottom end of the box body of the test box, and analyzing the rainfall uniformity of the rain dropping test and the rain showering test;
and judging the perfection degree of the raining test box according to the characteristics of the raindrop image set, the airflow set and the rainfall uniformity.
Preferably, the extracting the features of the raindrop image set includes:
performing maximum entropy segmentation on the raindrop image set f (x, y), and selecting an initial threshold Th 1 Calculating the mean value U of the raindrops in the raindrop image set and the image background 1 And U 2 The expression is:
wherein m and n respectively represent the number of pixels which are larger than a threshold value and smaller than the threshold value in the raindrop image set;
setting the pixel value in the raindrop image set to be less than U 1 Is classified as one, larger than U 2 Is divided into another class, will be greater than or equal to U 1 And is less than or equal to U 2 As the next image data source;
dividing the next image data source, and calculating threshold Th 2 If Th 2 -Th 1 |<5, then Th 2 And if not, repeating the two steps until the absolute value of Th i -Th i-1 |<5, then Th i Is the final threshold;
segmenting the raindrop image set according to the final threshold value to obtain a segmented image;
scanning the distribution positions and the number of raindrops in the segmented image, taking the connection line of the two farthest pixels on the raindrop outline in the segmented image as an X axis, and taking the connection line of the two farthest pixels on the raindrop outline in the segmented image and a vertical X axis as a Y axis;
determining the position of raindrops according to the centroid positions of the raindrops on the X axis and the Y axis in the segmentation image, and acquiring the characteristics of the raindrop image set, wherein the expression is as follows:
wherein p and q are the number of pixels in the i and j directions respectively, and g (i, j) is the gray value at the pixel point (i, j).
Preferably, the control of the first blower and the first wind direction adjusting piece, and the control of the second blower and the second wind direction adjusting piece adjust the wind power and the wind direction of the rain dripping test and the rain showering test includes:
during the rain dropping test, the wind pressure P of the first air blower is acquired according to the airflow set 1 And a wind direction theta discharged from the first wind direction adjustment piece 1 ，θ 1 Is (30 DEG, 90 DEG), calculating an effective wind distance L of the first blower 1 The expression is:
box body of test box for measuring vertical of rotating discDistance d of farthest point 1 If L is 1 >d 1 Then the wind pressure P is reduced 1 Reducing the wind direction theta 1 Up to L 1 <d 1 Distributing raindrops of the raindrop test on a rotating disc;
during the rain test, the wind pressure P of the second air blower is acquired according to the airflow set 2 And a wind direction theta discharged from the second wind direction adjustment sheet 2 ，θ 2 Is (30 DEG, 90 DEG), calculating an effective wind distance L of the first blower 2 The expression is:
measuring the distance d of the rotating disc perpendicular to the farthest point of the test box body 2 If L is 2 >d 2 Then the wind pressure P is reduced 2 Reducing the wind direction theta 2 Up to L 2 <d 2 And distributing the raindrops of the rain test on a rotating disc.
Preferably, the analyzing the rainfall uniformity of the dripping test and the rain test comprises:
regarding the rainfall collecting cups as a rainfall cylinder, calculating the accumulated rainfall R of each rainfall collecting cup A The expression is:
wherein m is 2 The mass m of the rainfall collecting cup after the rain test 1 The mass of the rainfall collecting cup before the rain test is shown, rho is the density of water, D is the caliber of the rainfall collecting cup, m 0 Accumulating rainfall mass;
calculating the average rainfall of n rainfall collecting cups according to the rainfall accumulated by each rainfall collecting cup
Calculate the rainfall uniformity coefficient, tableThe expression is as follows:
wherein R is Ai The rainfall of the ith rainfall collecting cup and n is the total number of the rainfall collecting cups;
the average rainfall is measured
Comparing the accumulated rainfall of each of said rainfall collecting cups if n/2 of said rainfall collecting cups accumulate rainfall in conjunction with said average rainfall->
And if the rainfall deviation coefficient is close to the rainfall deviation coefficient, calculating the rainfall deviation coefficient of the rainfall test, wherein the expression is as follows:
the rainfall deviation coefficient C represents the dispersion degree of the rainfall of the n rainfall collecting cups;
and acquiring the rainfall uniformity of the rain dropping test and the rain showering test by analyzing the rainfall deviation coefficient.
Preferably, the acquiring the rainfall uniformity of the rain drop test and the rain test by analyzing the rainfall deviation coefficient includes:
the closer the rainfall deviation coefficient is to 1, the greater the dispersion degree of the rainfall of the n rainfall collecting cups is, and the worse the rainfall uniformity of the rain dropping test and the rain showering test is;
the closer the rainfall deviation coefficient is to 0, the smaller the dispersion degree of the rainfall of the n rainfall collecting cups is, and the better the rainfall uniformity of the rain dropping test and the rain showering test is.
Preferably, a first air blower is fixedly mounted on the surface of one side of the test box body, a second air blower is fixedly mounted on the surface of the other side of the test box body, a first air direction adjusting sheet is arranged on the inner wall of one side of the test box body, and a second air direction adjusting sheet is arranged on the inner wall of the other side of the test box body.
Preferably, a water supply tank fixed by a support rod is fixedly installed above the test box body, a rain dripping water storage tank is fixedly installed at the upper end of the test box body, and a rain water storage tank is fixedly installed at one side, close to the rain dripping water storage tank, of the upper end of the test box body.
Preferably, the rain water storage tank and the rain water storage tank are communicated through a connecting pipe and a water supply tank, a rain intensity control valve communicated with the rain water storage tank is fixedly mounted at the top end of the test box body, a rain pipe network is fixedly mounted at the lower end of the rain intensity control valve, a rain intensity control valve communicated with the rain water storage tank is fixedly mounted at one side, close to the rain intensity control valve, of the top end of the test box body, and a rain pipe network is fixedly mounted at the lower end of the rain intensity control valve.
Preferably, the bottom of the test box body is provided with a lifting and rotating mechanism, the lifting and rotating mechanism comprises a fixed plate, the positions, close to the two sides, of the lower end of the fixed plate are fixedly provided with air cylinders, the piston rods of the two air cylinders are fixedly provided with push rods, the upper ends of the two push rods are fixedly provided with a partition plate, one side, close to one of the air cylinders, of the lower end of the fixed plate is fixedly provided with a servo motor, the lower end of the partition plate is rotatably provided with a second gear, one side, close to the second gear, of the lower end of the partition plate is rotatably provided with a first gear, the first gear is meshed with the second gear, the upper end of the partition plate is rotatably provided with a rotating disk, and a rotating shaft of the second gear penetrates through the partition plate and is fixedly arranged with the rotating disk.
Preferably, there are two limiting plates in the upper end slidable mounting of rotary disk, and two limiting plates are the mirror image and distribute, four open-ended activity chambeies that make progress are seted up to the inside of rotary disk, and the equal fixed mounting of lower extreme of two limiting plates has two connecting rods, and four connecting rods insert the one-to-one in four activity chambeies respectively, be provided with the spring between one side inner wall in connecting rod and the activity chamber, the circular arc surface of rotary disk is provided with four pole holes that are linked together with four activity chambeies respectively, one side fixed surface of connecting rod installs the gag lever post that runs through the pole hole.
In order to solve the above problem, the present invention also provides an electronic device, including:
a memory storing at least one instruction; and
and the processor executes the instructions stored in the memory to realize the rain test box improvement method based on the natural rainfall mechanism.
In order to solve the above problem, the present invention further provides a computer-readable storage medium, where at least one instruction is stored, and the at least one instruction is executed by a processor in an electronic device to implement the above method for improving a raining test chamber based on a natural rainfall mechanism.
Compared with the background art: according to the invention, the electronic product to be tested is placed on the lifting rotating mechanism, the height and the angle of the electronic product to be tested can be adjusted, the electronic product to be tested is fixed through the two limiting plates, the electronic product to be tested is placed between the two limiting plates, so that the limiting plates are pushed to drive the connecting rod to pull the spring, the electronic product to be tested is clamped and fixed by utilizing the elasticity of the two springs, meanwhile, the limiting rod penetrating through the rod hole limits the deviation of the connecting rod and the spring in the movable cavity, during a dripping test or a rain test, the upper cylinder and the servo motor of the fixing plate are started, the cylinder drives the push rod to push the partition plate to adjust the height of the rotating disk, the servo motor drives the first gear to rotate, and the first gear drives the second gear to rotate to drive the rotating disk to rotate; acquiring a raindrop image set during a raindrop test and a raindrop test through a camera, extracting characteristics of the raindrop image set, acquiring the diameter of raindrops, judging whether the raindrop diameter of the raindrop test meets the diameter of natural raindrops, and adjusting wind power and wind direction of the raindrop test and the raindrop test to ensure that raindrops are distributed on a rotating disc during the raindrop test and the raindrop test; through analyzing the rainfall uniformity of the rain dropping test and the rain showering test, the distribution of raindrops of the rain dropping test and the rain showering test can be judged to be uniform, so that the rainfall uniformity of the rain dropping test and the rain showering test can be adjusted. Therefore, the method, the device, the electronic equipment and the computer readable storage medium for improving the rain test box based on the natural rainfall mechanism can solve the problem that the existing rain test box can not simulate natural rainfall to realize rain.
Drawings
Fig. 1 is a schematic flow chart of a method for improving a raining test chamber based on a natural rainfall mechanism according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of extracting features of a raindrop image set according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a process of analyzing rainfall uniformity in a dripping test and a raining test according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rain test chamber according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a lifting and rotating mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic bottom view of a partition and a rotating plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of a rotary disk structure according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device for implementing the method for improving a raining test chamber based on a natural rainfall mechanism according to an embodiment of the present invention.
In the figure: 100. a test chamber body; 200. a water supply tank; 300. a rain dripping water storage tank; 400. a rain water storage tank; 500. a first blower; 600. a first wind direction adjustment sheet; 700. a lifting and rotating mechanism; 701. rotating the disc; 702. a partition plate; 703. a first gear; 704. a second gear; 705. a fixing plate; 706. a cylinder; 707. a push rod; 708. a servo motor; 709. a limiting plate; 710. a connecting rod; 711. a spring; 712. a movable cavity; 713. a limiting rod; 714. a rod hole; 800. a second blower; 900. a second wind direction adjusting sheet; 1000. a rain dropping pipe network; 1100. a raindrop intensity control valve; 1200. a rain intensity control valve; 1300. a rain pipe network.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the application provides a method for perfecting a raining test box based on a natural rainfall mechanism. The execution subject of the raining test box improvement method based on the natural rainfall mechanism includes but is not limited to at least one of electronic devices such as a server and a terminal, which can be configured to execute the method provided by the embodiment of the application. In other words, the raining test box improvement method based on the natural rainfall mechanism may be performed by software or hardware installed in a terminal device or a server device, and the software may be a block chain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like.
Example 1:
referring to fig. 1, a schematic flow chart of a method for improving a raining test chamber based on a natural rainfall mechanism according to an embodiment of the present invention is shown. In this embodiment, a method for perfecting a raining test chamber based on a natural rainfall mechanism includes:
referring to fig. 1 to 3, the present invention is a method for improving a raining test chamber based on a natural rainfall mechanism, which includes the following steps:
placing the electronic product to be tested on the lifting and rotating mechanism 700, and respectively performing a rain dropping test and a rain test on the electronic product to be tested through the rain dropping pipe network 1000 and the rain showering pipe network 1300;
it should be explained that, in the embodiment of the present invention, the rain drop test and the rain test are performed separately, so as to implement rain drop and rain drop, water in the water supply tank 200 is injected into the rain drop water storage tank 300 and the rain drop water storage tank 400, the rain drop test controls the rain drop pipe network 1000 to drop rain through the rain drop strength control valve 1100, and the rain test controls the rain pipe network 1300 to drop rain through the rain drop strength control valve 1200.
It should be explained that, in the embodiment of the present invention, the electronic product to be tested is placed on the lifting and rotating mechanism 700, so that the height and the angle of the electronic product to be tested can be adjusted, the electronic product to be tested is fixed by the two limiting plates 709, the electronic product to be tested is placed between the two limiting plates 709, so that the limiting plates 709 are pushed to drive the connecting rod 710 to pull the spring 711, the electronic product to be tested is clamped and fixed by the elastic force of the two springs 711, meanwhile, the limiting rod 713 penetrating through the rod hole 714 limits the deviation of the connecting rod 710 and the spring 711 in the movable cavity 712, during a rain drop test or a rain test, the upper air cylinder 706 and the servo motor 708 of the fixing plate 705 are started, the air cylinder 706 drives the push rod 707 to push the partition 702 to adjust the height of the rotating disc 701, the servo motor 708 drives the first gear 703 to rotate, and the first gear 703 drives the second gear 704 to rotate to drive the rotating disc 701 to rotate.
Acquiring a raindrop image set in a raindrop test and a raining test through a camera, and extracting characteristics of the raindrop image set;
when the rain dropping test and the rain showering test are carried out, the airflow set of the rain dropping test and the rain showering test is obtained through the airflow sensor, and the wind power and the wind direction of the rain dropping test and the rain showering test are respectively controlled to be adjusted by the first air blower 500 and the first wind direction adjusting sheet 600 and by the second air blower 800 and the second wind direction adjusting sheet 900;
it should be noted that, in the embodiment of the present invention, the first wind direction adjustment sheet 600 and the second wind direction adjustment sheet 900 have a structure similar to an air outlet structure of an air conditioner, and can adjust the wind direction up, down, left, and right.
Moving the lifting and rotating mechanism 700 out of the test box body 100, placing n uniformly distributed rainfall collecting cups at the bottom end of the test box body 100, and analyzing the rainfall uniformity of the rain dropping test and the rain test;
and judging the perfection degree of the rain test box according to the characteristics of the raindrop image set, the airflow set and the rainfall uniformity.
Extracting features of a raindrop image set, comprising:
performing maximum entropy segmentation on raindrop image set f (x, y), and selecting initial threshold Th 1 Calculating the mean value U of raindrops in the raindrop image set and the image background 1 And U 2 The expression is:
wherein m and n respectively represent the number of pixels which are larger than a threshold value and smaller than the threshold value in the raindrop image set;
the concentrated pixel value of the raindrop image is smaller than U 1 Is one kind, larger than U 2 Is divided into another class, will be greater than or equal to U 1 And is less than or equal to U 2 As the next image data source;
dividing the next image data source, and calculating threshold Th 2 If Th 2 -Th 1 |<5, then Th 2 If the threshold is the final threshold, otherwise, repeating the two steps until the Th i -Th i-1 |<5, then Th i Is the final threshold;
segmenting the raindrop image set according to the final threshold value to obtain a segmented image;
it should be explained that, in the embodiment of the present invention, the background of the raindrop image set and raindrops are divided by the segmentation image, which facilitates the next step of scanning the distribution position and number of raindrops in the segmentation image.
Scanning the distribution positions and the number of raindrops in the segmented image, taking the connecting line of the two farthest pixels on the raindrop outline in the segmented image as an X axis, and taking the connecting line of the two farthest pixels on the raindrop outline in the segmented image and the vertical X axis as a Y axis;
determining the position of raindrops according to the centroid positions of the raindrops on the X axis and the Y axis in the segmented image, and acquiring the characteristics of a raindrop image set, wherein the expression is as follows:
wherein p and q are the number of pixels in the i and j directions respectively, and g (i, j) is the gray value at the pixel point (i, j).
It should be explained that, in the embodiment of the present invention, the position (x, y) of the raindrop is determined, the raindrop diameter is determined by using the pixel points, whether the raindrop diameter is within the range of 0.5-4.5mm or not is determined, the raindrop with the diameter of 0.5-4.5mm belongs to the range of the raindrop diameter of natural rainfall, and if the raindrop diameter is not within the range of 0.5-4.5mm, the nozzles of the raindrop pipe network and the raindrop pipe network are adjusted; the rain dripping pipe network and the rain spraying pipe network respectively comprise a main spray pipe, an auxiliary spray pipe and nozzles, the main spray pipe, the auxiliary spray pipe and the nozzles are made of 304 stainless steel, the number of the nozzles is determined according to rainfall intensity, spray pressure and nozzle diameter, and the diameter of the nozzles is adjusted according to the rain drop diameter.
Control first air-blower 500 and first wind direction adjustment piece 600, second air-blower 800 and second wind direction adjustment piece 900 and adjust the wind-force and the wind direction of dripping the rain test and drenching the rain test, include:
in the rain dropping test, the wind pressure P of the first blower 500 is obtained according to the air flow set 1 And a wind direction theta discharged from the first wind direction adjustment blade 600 1 ，θ 1 Is (30 degrees, 90 degrees), and calculates the effective wind distance L of the first blower 1 The expression is:
measuring the distance d of the rotating disc 700 perpendicular to the farthest point of the test chamber box 100 1 If L is 1 >d 1 Then the wind pressure P is reduced 1 Reducing the wind direction theta 1 Up to L 1 <d 1 Distributing raindrops for a raindrop test on the rotary plate 700;
during a rain test, the wind pressure P of the second blower 800 is obtained according to the air flow set 2 And a wind direction theta discharged from the second wind direction adjustment sheet 900 2 ，θ 2 Is (30 degrees, 90 degrees), and calculates the effective wind distance L of the first blower 2 The expression is:
measuring the farthest point distance d of the rotating disc 700 perpendicular to the box body 100 of the test box 2 If L is 2 >d 2 To reduce wind pressureP 2 Reducing the wind direction theta 2 Up to L 2 <d 2 Raindrops for the rain test are distributed on the rotary plate 700.
It should be explained that, in the embodiment of the present invention, the adjustment of the wind power and wind direction of the rain drop test and the rain test is performed under the condition that the rain drop pipe network 1000 and the rain pipe network 1300 make vertical rainfall, and the vertical rainfall spraying force of the rain drop pipe network 1000 and the rain pipe network 1300 does not affect the wind power adjustment; note that, when the rain test is performed, L is 1 >d 1 The invention can automatically reduce the wind pressure P of the first blower 500 1 And reducing the wind direction theta of the first wind direction adjustment sheet 600 1 Also in the rain test, if L 2 >d 2 The invention can automatically reduce the wind pressure P of the second blower 800 2 Reducing the wind direction theta of the second wind direction adjustment piece 900 2 。
The rainfall homogeneity of the rain test and the rain test is analyzed, and the method comprises the following steps:
regarding the rainfall collecting cup as a rainfall cylinder, calculating the accumulated rainfall P of each rainfall collecting cup A The expression is:
wherein m is 2 The mass m of the rainfall collecting cup after the rain test 1 The mass of the rainfall collecting cup before the rain test is shown, rho is the density of water, D is the caliber of the rainfall collecting cup, m 0 Accumulating the rainfall quality;
calculating the average rainfall of the n rainfall collecting cups according to the accumulated rainfall of each rainfall collecting cup
Calculating the rainfall uniformity coefficient, wherein the expression is as follows:
wherein R is Ai The rainfall of the ith rainfall collecting cup and n is the total number of the rainfall collecting cups;
average rainfall
Comparing the accumulated rainfall of each rainfall collecting cup if n/2 rainfall collecting cups accumulate with the average rainfall->
And if the rainfall deviation coefficient is close to the preset value, calculating the rainfall deviation coefficient of the rainfall test, wherein the expression is as follows:
the rainfall deviation coefficient C represents the dispersion degree of the rainfall of the n rainfall collecting cups;
and acquiring the rainfall uniformity of a dripping test and a raining test by analyzing the rainfall deviation coefficient.
The rainfall uniformity of the rain dropping test and the rain showering test is obtained by analyzing the rainfall deviation coefficient, and the method comprises the following steps:
the closer the rainfall deviation coefficient is to 1, the larger the dispersion degree of the rainfall of the n rainfall collecting cups is, and the worse the rainfall uniformity of the rain dropping test and the rain showering test is;
the closer the rainfall deviation coefficient is to 0, the smaller the dispersion degree of the rainfall of the n rainfall collecting cups is, and the better the rainfall uniformity of the rain dropping test and the rain showering test is.
It should be explained that, in the embodiment of the present invention, the rainfall uniformity of the rainfall test and the rainfall test is determined according to the value of the rainfall deviation coefficient, if the rainfall uniformity is poor, the distribution area of the n rainfall collecting cups is adjusted, and simultaneously the wind power and the wind direction of the rainfall test and the rainfall test are adjusted, so as to avoid that the effective wind distance of the first blower 500 or the second blower 800 is greater than the distance from the edge of the n rainfall collecting cups to the inner wall of the box body of the test box.
Compared with the background art: according to the invention, the electronic product to be tested is placed on the lifting rotating mechanism, the height and the angle of the electronic product to be tested can be adjusted, the electronic product to be tested is fixed through the two limiting plates, the electronic product to be tested is placed between the two limiting plates, so that the limiting plates are pushed to drive the connecting rod to pull the spring, the electronic product to be tested is clamped and fixed by utilizing the elasticity of the two springs, meanwhile, the limiting rod penetrating through the rod hole limits the deviation of the connecting rod and the spring in the movable cavity, during a dripping test or a rain test, the upper cylinder and the servo motor of the fixing plate are started, the cylinder drives the push rod to push the partition plate to adjust the height of the rotating disk, the servo motor drives the first gear to rotate, and the first gear drives the second gear to rotate to drive the rotating disk to rotate; acquiring a raindrop image set during a raindrop test and a raining test through a camera, extracting characteristics of the raindrop image set, acquiring the diameter of raindrops, judging whether the diameter of the raindrops during the raining test meets the diameter of natural raindrops or not, and guaranteeing that raindrops are distributed on a rotating disc during the raindrop test and the raining test by adjusting wind power and wind direction of the raindrop test and the raining test; through analyzing the rainfall uniformity of the rain dropping test and the rain showering test, the distribution of raindrops of the rain dropping test and the rain showering test can be judged to be uniform, so that the rainfall uniformity of the rain dropping test and the rain showering test can be adjusted. Therefore, the method, the device, the electronic equipment and the computer readable storage medium for improving the rain test box based on the natural rainfall mechanism can solve the problem that the existing rain test box cannot simulate natural rainfall to realize rain.
Example 2:
referring to fig. 4 to 7, a first blower 500 is fixedly installed on one side surface of the test chamber body 100, a second blower 800 is fixedly installed on the other side surface of the test chamber body 100, a first wind direction adjustment sheet 600 is disposed on one side inner wall of the test chamber body 100, and a second wind direction adjustment sheet 900 is disposed on the other side inner wall of the test chamber body 100.
The water supply tank 200 fixed by the support rod is fixedly installed above the test box body 100, the rain water storage tank 300 is fixedly installed at the upper end of the test box body 100, and the rain water storage tank 400 is fixedly installed at one side, close to the rain water storage tank 300, of the upper end of the test box body 100.
The rain water storage tank 300 and the rain water storage tank 400 are all communicated through the connecting pipe and the water supply tank 200, the top fixed mounting of the test box 100 is provided with a rain intensity control valve 1100 communicated with the rain water storage tank 300, the lower end fixed mounting of the rain intensity control valve 1100 is provided with a rain pipe network 1000, one side fixed mounting of the top of the test box 100 close to the rain intensity control valve 1100 is provided with a rain intensity control valve 1200 communicated with the rain water storage tank 400, and the lower end fixed mounting of the rain intensity control valve 1200 is provided with a rain pipe network 1300.
The bottom end of the test box body 100 is provided with a lifting and rotating mechanism 700, the lifting and rotating mechanism 700 comprises a fixing plate 705, air cylinders 706 are fixedly mounted at positions, close to two sides, of the lower end of the fixing plate 705, push rods 707 are fixedly mounted on piston rods of the two air cylinders 706, partition plates 702 are fixedly mounted at upper ends of the two push rods 707, a servo motor 708 is fixedly mounted at one side, close to one of the air cylinders 706, of the lower end of the fixing plate 705, a second gear 704 is rotatably mounted at the lower end of the partition plate 702, a first gear 703 is rotatably mounted at one side, close to the second gear 704, of the lower end of the partition plate 702, the first gear 703 is in meshed connection with the second gear 704, a rotating disc 701 is rotatably mounted at the upper end of the partition plate 702, and a rotating shaft of the second gear 704 penetrates through the partition plate 702 and is fixedly mounted with the rotating disc 701.
Two limiting plates 709 are installed at the upper end of rotary disk 701 in a sliding mode, the two limiting plates 709 are distributed in a mirror image mode, four movable cavities 712 with upward openings are formed in the rotary disk 701, two connecting rods 710 are installed at the lower ends of the two limiting plates 709 in a fixed mode, the four connecting rods 710 are inserted into the four movable cavities 712 in a one-to-one correspondence mode respectively, springs 711 are arranged between the connecting rods 710 and the inner wall of one side of each movable cavity 712, four rod holes 714 communicated with the four movable cavities 712 respectively are formed in the arc surface of the rotary disk 701, and limiting rods 713 penetrating through the rod holes 714 are fixedly installed on the surface of one side of each connecting rod 710.
Example 3:
fig. 8 is a schematic structural diagram of an electronic device for implementing a raining test box improvement method based on a natural rainfall mechanism according to an embodiment of the present invention.
The electronic device 1 may comprise a processor 10, a memory 11 and a bus, and may further comprise a computer program, such as a raining proof box perfecting program 12, stored in the memory 11 and executable on the processor 10.
The memory 11 includes at least one type of readable storage medium, which includes flash memory, removable hard disk, multimedia card, card type memory (e.g., SD or DX memory, etc.), magnetic memory, magnetic disk, optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. The memory 11 may also be an external storage device of the electronic device 1 in other embodiments, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the electronic device 1. Further, the memory 11 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 11 may be used not only to store application software installed in the electronic device 1 and various types of data, such as codes of the rain test chamber perfecting program 12, but also to temporarily store data that has been output or is to be output.
The processor 10 may be formed of an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or may be formed of a plurality of integrated circuits packaged with the same function or different functions, including one or more Central Processing Units (CPUs), microprocessors, digital Processing chips, graphics processors, and combinations of various control chips. The processor 10 is a Control Unit (Control Unit) of the electronic device, connects various components of the whole electronic device by using various interfaces and lines, and executes various functions and processes data of the electronic device 1 by running or executing programs or modules (e.g., a raining proof box perfecting program, etc.) stored in the memory 11 and calling data stored in the memory 11.
The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. The bus is arranged to enable connection communication between the memory 11 and at least one processor 10 or the like.
Fig. 8 only shows an electronic device with components, and it will be understood by those skilled in the art that the structure shown in fig. 8 does not constitute a limitation of the electronic device 1, and may comprise fewer or more components than those shown, or some components may be combined, or a different arrangement of components.
For example, although not shown, the electronic device 1 may further include a power supply (such as a battery) for supplying power to each component, and preferably, the power supply may be logically connected to the at least one processor 10 through a power management device, so as to implement functions of charge management, discharge management, power consumption management, and the like through the power management device. The power supply may also include any component of one or more dc or ac power sources, recharging devices, power failure detection circuitry, power converters or inverters, power status indicators, and the like. The electronic device 1 may further include various sensors, a bluetooth module, a Wi-Fi module, and the like, which are not described herein again.
Further, the electronic device 1 may further include a network interface, and optionally, the network interface may include a wired interface and/or a wireless interface (such as a WI-FI interface, a bluetooth interface, etc.), which are generally used for establishing a communication connection between the electronic device 1 and other electronic devices.
Optionally, the electronic device 1 may further comprise a user interface, which may be a Display (Display), an input unit (such as a Keyboard), and optionally a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display, which may also be referred to as a display screen or display unit, is suitable, among other things, for displaying information processed in the electronic device 1 and for displaying a visualized user interface.
It is to be understood that the described embodiments are for purposes of illustration only and that the scope of the appended claims is not limited to such structures.
The transformer fault diagnosis program 12 stored in the memory 11 of the electronic device 1 is a combination of a plurality of instructions, which when executed in the processor 10, can implement:
placing the electronic product to be tested on the lifting and rotating mechanism 700, and respectively performing a rain dropping test and a rain test on the electronic product to be tested through the rain dropping pipe network 1000 and the rain showering pipe network 1300;
acquiring a raindrop image set during a raindrop test and a raindrop test through a camera, and extracting characteristics of the raindrop image set;
when the rain dropping test and the rain showering test are carried out, the airflow set of the rain dropping test and the rain showering test is obtained through the airflow sensor, and the wind power and the wind direction of the rain dropping test and the rain showering test are respectively controlled to be adjusted by the first air blower 500 and the first wind direction adjusting sheet 600 and by the second air blower 800 and the second wind direction adjusting sheet 900;
moving the lifting and rotating mechanism 700 out of the test box body 100, placing n uniformly distributed rainfall collecting cups at the bottom end of the test box body 100, and analyzing the rainfall uniformity of the rain dropping test and the rain test;
and judging the perfection degree of the rain test box according to the characteristics of the raindrop image set, the airflow set and the rainfall uniformity.
Specifically, the specific implementation method of the processor 10 for the instruction may refer to the description of the relevant steps in the embodiments corresponding to fig. 1 to fig. 8, which is not repeated herein.
Further, the integrated modules/units of the electronic device 1, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. The computer readable storage medium may be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying said computer program code, a recording medium, a usb-disk, a removable hard disk, a magnetic diskette, an optical disk, a computer Memory, a Read-Only Memory (ROM).
The invention also provides a computer-readable storage medium having a computer program stored thereon, the computer program being executable by a processor of an electronic device.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
The block chain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism, an encryption algorithm and the like. A block chain (Blockchain), which is essentially a decentralized database, is a series of data blocks associated by using a cryptographic method, and each data block contains information of a batch of network transactions, so as to verify the validity (anti-counterfeiting) of the information and generate a next block. The blockchain may include a blockchain underlying platform, a platform product service layer, an application service layer, and the like.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A rain test box improvement method based on a natural rainfall mechanism is characterized by comprising the following steps:
placing an electronic product to be tested on a lifting rotating mechanism (700), and respectively carrying out a rain dropping test and a rain test on the electronic product to be tested through a rain dropping pipe network (1000) and a rain pipe network (1300);
acquiring a raindrop image set during the raindrop test and the raindrop test through a camera, and extracting the characteristics of the raindrop image set;
when the rain dripping test and the rain test are carried out, the airflow sets of the rain dripping test and the rain test are obtained through the airflow sensor, and the wind power and the wind direction of the rain dripping test and the rain test are respectively controlled by a first air blower (500) and a first wind direction adjusting sheet (600) and a second air blower (800) and a second wind direction adjusting sheet (900);
moving the lifting rotating mechanism (700) out of the test box body (100), placing n uniformly distributed rainfall collecting cups at the bottom end of the test box body (100), and analyzing the rainfall uniformity of the rain dropping test and the rain test;
and judging the perfection degree of the raining test box according to the characteristics of the raindrop image set, the airflow set and the rainfall uniformity.
2. The method for perfecting a raining test chamber based on a natural rainfall mechanism as claimed in claim 1, wherein said extracting features of said raindrop image set comprises:
performing maximum entropy segmentation on the raindrop image set f (x, y), and selecting an initial threshold Th 1 Calculating theRaindrop image centralized raindrop and image background mean value U 1 And U 2 The expression is:
wherein m and n respectively represent the number of pixels which are larger than a threshold value and smaller than the threshold value in the raindrop image set;
setting the pixel value in the raindrop image set to be less than U 1 Is classified as one, larger than U 2 Is divided into another class, will be greater than or equal to U 1 And is less than or equal to U 2 As the next image data source;
dividing the next image data source, and calculating threshold Th 2 If Th 2 -Th 1 |<5, then Th 2 And if not, repeating the two steps until the absolute value of Th i -Th i-1 |<5, then Th i Is the final threshold;
segmenting the raindrop image set according to the final threshold value to obtain a segmented image;
scanning the distribution positions and the number of raindrops in the segmentation image, taking the connection line of the two farthest pixels on the raindrop outline in the segmentation image as an X axis, and taking the connection line of the two farthest pixels on the raindrop outline in the segmentation image and a vertical X axis as a Y axis;
determining the position of raindrops according to the centroid positions of the raindrops on the X axis and the Y axis in the segmentation image, and acquiring the characteristics of the raindrop image set, wherein the expression is as follows:
wherein p and q are the number of pixels in the i and j directions respectively, and g (i, j) is the gray value at the pixel point (i, j).
3. The method for improving a raining test chamber based on a natural rainfall mechanism as claimed in claim 1, wherein the controlling the first blower (500) and the first wind direction adjusting sheet (600), and the second blower (800) and the second wind direction adjusting sheet (900) to adjust the wind force and the wind direction of the raining test and the raining test comprises:
during the rain dripping test, the wind pressure P of the first air blower (500) is acquired according to the airflow set 1 And a wind direction theta discharged from the first wind direction adjustment blade (600) 1 ，θ 1 Is (30 DEG, 90 DEG), calculating an effective wind distance L of the first blower 1 The expression is:
measuring the distance d of the rotating disc (700) perpendicular to the farthest point of the test box body (100) 1 If L is 1 >d 1 Then the wind pressure P is reduced 1 Reducing the wind direction theta 1 Up to L 1 <d 1 -distributing the raindrops of said raindrop test on said rotating disc (700);
during the rain test, the wind pressure P of the second air blower (800) is acquired according to the air flow set 2 And a wind direction theta discharged from the second wind direction adjustment blade (900) 2 ，θ 2 Is (30 DEG, 90 DEG), calculating an effective wind distance L of the first blower 2 The expression is:
measuring the distance d of the rotating disc (700) perpendicular to the farthest point of the test chamber body (100) 2 If L is 2 >d 2 Then the wind pressure P is reduced 2 Reducing the wind direction theta 2 Up to L 2 <d 2 -distributing raindrops of said rain test on said rotating disc (700).
4. The method for perfecting a raining test chamber based on a natural rainfall mechanism according to claim 1, wherein the analyzing the rainfall uniformity of the raining test and the raining test comprises:
regarding the rainfall collecting cups as a rainfall cylinder, calculating the accumulated rainfall R of each rainfall collecting cup A The expression is:
wherein m is 2 The mass m of the rainfall collecting cup after the rain test 1 The mass of the rainfall collecting cup before the rainfall test, rho is the density of water, D is the caliber of the rainfall collecting cup, m 0 Accumulating the rainfall quality;
calculating the average rainfall of n rainfall collecting cups according to the rainfall accumulated by each rainfall collecting cup
Calculating the rainfall uniformity coefficient, wherein the expression is as follows: />
Wherein R is Ai The rainfall of the ith rainfall collecting cup and n is the total number of the rainfall collecting cups;
the average rainfall is measured
Comparing the rainfall accumulated by each of said rainfall collecting cups if n/2 of said rainfall collecting cups accumulates with said average rainfall >>
And if the rainfall deviation coefficient is close to the rainfall deviation coefficient, calculating the rainfall deviation coefficient of the rainfall test, wherein the expression is as follows:
the rainfall deviation coefficient C represents the dispersion degree of the rainfall of the n rainfall collecting cups;
and acquiring the rainfall uniformity of the rain dropping test and the rain test by analyzing the rainfall deviation coefficient.
5. The method for perfecting a raining test chamber based on a natural rainfall mechanism according to claim 4, wherein the obtaining of the rainfall uniformity of the raining test and the raining test by analyzing the rainfall deviation coefficient comprises:
the closer the rainfall deviation coefficient is to 1, the greater the dispersion degree of the rainfall of the n rainfall collecting cups is, and the worse the rainfall uniformity of the rain dropping test and the rain showering test is;
the closer the rainfall deviation coefficient is to 0, the smaller the dispersion degree of the rainfall of the n rainfall collecting cups is, and the better the rainfall uniformity of the rain dropping test and the rain showering test is.
6. The method for improving the raining test chamber based on the natural rainfall mechanism is characterized in that a first air blower (500) is fixedly mounted on one side surface of the test chamber body (100), a second air blower (800) is fixedly mounted on the other side surface of the test chamber body (100), a first air direction adjusting sheet (600) is arranged on one side inner wall of the test chamber body (100), and a second air direction adjusting sheet (900) is arranged on the other side inner wall of the test chamber body (100).
7. The method for improving a raining test chamber based on a natural rainfall mechanism as claimed in claim 1, wherein a water supply chamber (200) fixed by a support rod is fixedly installed above the test chamber body (100), a raindrop water storage tank (300) is fixedly installed at the upper end of the test chamber body (100), and a raining water storage tank (400) is fixedly installed at one side of the upper end of the test chamber body (100) close to the raindrop water storage tank (300).
8. The method for improving a raining test chamber based on a natural rainfall mechanism as claimed in claim 7, wherein the raining water storage tank (300) and the raining water storage tank (400) are both connected to the water supply tank (200) through a connecting pipe, a raining intensity control valve (1100) connected to the raining water storage tank (300) is fixedly installed at the top end of the test chamber body (100), a raining pipe network (1000) is fixedly installed at the lower end of the raining intensity control valve (1100), a raining intensity control valve (1200) connected to the raining water storage tank (400) is fixedly installed at one side of the top end of the test chamber body (100) close to the raining intensity control valve (1100), and a raining pipe network (1300) is fixedly installed at the lower end of the raining intensity control valve (1200).
9. The method for improving the rain test box based on the natural rainfall mechanism as claimed in claim 1, wherein a lifting and rotating mechanism (700) is arranged at the bottom end of the test box body (100), the lifting and rotating mechanism (700) comprises a fixing plate (705), air cylinders (706) are fixedly mounted at positions, close to two sides, of the lower end of the fixing plate (705), push rods (707) are fixedly mounted on piston rods of the two air cylinders (706), partition plates (702) are fixedly mounted at the upper ends of the two push rods (707), a servo motor (708) is fixedly mounted at one side, close to one of the air cylinders (706), of the lower end of the fixing plate (705), a second gear (704) is rotatably mounted at the lower end of the partition plate (702), a first gear (703) is rotatably mounted at one side, close to the second gear (704), the first gear (703) is in meshed connection with the second gear (704), a rotating disc (701) is rotatably mounted at the upper end of the partition plate (702), and a rotating shaft of the second gear (704) penetrates through the partition plate (701) and is fixedly mounted on the partition plate (701).
10. The method for improving the rain test box based on the natural rainfall mechanism as claimed in claim 9, wherein two limiting plates (709) are slidably mounted at the upper end of the rotating disk (701), the two limiting plates (709) are distributed in a mirror image manner, four movable cavities (712) with upward openings are formed in the rotating disk (701), two connecting rods (710) are fixedly mounted at the lower ends of the two limiting plates (709), the four connecting rods (710) are respectively inserted into the four movable cavities (712) in a one-to-one correspondence manner, a spring (711) is arranged between the connecting rod (710) and the inner wall of one side of each movable cavity (712), four rod holes (714) respectively communicated with the four movable cavities (712) are formed in the arc surface of the rotating disk (701), and a limiting rod (713) penetrating through the rod holes (714) is fixedly mounted on the surface of one side of each connecting rod (710).
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