KR102429555B1 - Scale rod for measuring water level and system including the same - Google Patents

Abstract

The present invention relates to a scale rod for measuring the water level of a farmland and a system for accurately measuring the water level of a farmland in real time by photographing the scale rod with a camera. According to an embodiment of the present invention, the scale rod includes: a cutting edge unit inserted into the ground; a support unit coming into contact with the ground as the cutting edge unit is inserted; and a bar unit extended from the support unit in a vertical direction. The bar unit includes a scale marked in a longitudinal direction and a water reaction dye painted in the longitudinal direction. Also, the system for measuring the water level of a body of water, according to the embodiment of the present invention, includes: a scale rod for measuring the water level of a body of water; a camera photographing a discolored point of the water reaction dye; and a processor identifying the water level corresponding to the discolored point. According to the present invention, the scale rod for measuring the water level of a body of water enables the user to identify the water level rapidly and accurately by indicating a color change in the water reaction dye in a periphery of the scale.

Description

Scale bar for water level measurement and water level measurement system including the same

The present invention relates to a scale bar for measuring the water level in farmland, and a system for accurately grasping the water level in farmland in real time by photographing the scale bar with a camera.

Agricultural water refers to water for irrigation artificially supplied to agricultural land such as paddy fields and fields for the purpose of producing crops. Agricultural water accounts for about 41% of the total water use in Korea, and as a country with a water shortage designated by the United Nations (UN), systematic management of agricultural water is essential.

The purpose of the management of agricultural water is to efficiently use limited water resources and to improve crop productivity by accurately calculating the supply time and amount of irrigation required for agricultural land and establishing an appropriate irrigation scheduling.

One of the important factors to be considered in establishing such an irrigation plan is the water level of each farmland.

Since water flows along the waterway pipe connected from the reservoir, it is supplied sequentially from the farmland close to the reservoir. Accordingly, the water level is low due to delayed water supply or insufficient water supply to agricultural land that is relatively far from the reservoir.

In order to solve this water level imbalance problem, government officials are dispatched to each farmland to measure water level directly or indirectly measure water level by collecting opinions from landlords.

However, since such a solution only grasps the water level at a specific point in time, there is a problem in that the water level that changes in time series cannot be grasped. In addition, the existing water level measurement method has a problem in that the water level measurement is inaccurate because the water level is evaluated by eye, such as whether the agricultural land is overflowing, adequate, or dry without a standardized standard.

On the other hand, when artificial intelligence (AI) is applied to future irrigation plans, a large and accurate data set (data set) is required.

Accordingly, a technology for accurately grasping the water level in real time is required in order to solve the problems of the existing method for measuring water level in agricultural land and to build an artificial intelligence system for future irrigation planning.

An object of the present invention is to provide a scale bar in which a water-reactive dye that changes color when it comes into contact with water is painted around the scale.

Another object of the present invention is to provide a water level measurement system for photographing a point where a color change occurs with a camera and identifying a water level corresponding to the point.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

The scale bar according to an embodiment of the present invention for achieving the above object includes a tip part inserted into the ground, a support part in contact with the ground according to the insertion of the tip part, and a bar part extending in a vertical direction from the support part, The bar portion is characterized in that it comprises a scale marked along the longitudinal direction and a water-reactive dye painted along the longitudinal direction.

In one embodiment, the tip portion is characterized in that the insertion is until the support portion abuts against the ground.

In one embodiment, the outer peripheral surface of the tip is characterized in that the thread is formed.

In one embodiment, the cross-sectional area of the support is larger than the cross-sectional area of the tip.

In one embodiment, the scale is characterized in that it indicates the height from the support.

In an embodiment, the scale and the water-reactive dye are formed side by side in a non-overlapping area.

In one embodiment, it is characterized in that the water-reactive dye is painted in the area marked with the scale.

In one embodiment, the water-reactive dye is characterized in that the color changes when in contact with water.

In one embodiment, the water-reactive dye is characterized in that it is dissolved when in contact with water.

In one embodiment, the water-reactive dye is characterized in that it absorbs UV (ultraviolet ray) and emits light.

In addition, the water level measurement system according to an embodiment of the present invention for achieving the above object, a tip part inserted into the ground, a support part in contact with the ground according to the insertion of the tip part, a length extending in a vertical direction from the support part A scale bar for water level measurement consisting of a scale displayed along the direction and a rod including a water-reactive dye painted along the longitudinal direction, a camera for photographing the discoloration point of the water-reactive dye, and the water level corresponding to the discoloration point It is characterized in that it includes a processor.

In an embodiment, the water-reactive dye is a water-soluble dye that absorbs UV and emits light, and the camera includes UV illumination.

In one embodiment, the camera is characterized in that it is fixedly installed at a preset position based on the scale bar.

In an embodiment, the water level measurement system further comprises a connecting rod having one end connected to the upper end of the scale bar and the other end extending in the horizontal direction to support the camera.

In an embodiment, the processor detects the discoloration point and identifies a water level corresponding to the coordinates of the discoloration point.

In an embodiment, the processor generates a notification message when a part or all of the scale bar is identified outside of a preset area of the image captured by the camera.

In an embodiment, the processor transmits the notification message to the user terminal.

In one embodiment, the processor identifies a scale located at the discoloration point, and reads an image code included in the scale to identify the water level.

In an embodiment, the processor identifies the water level by reading the characters written on the scale corresponding to the discoloration point.

According to the present invention, when the water level is checked through the bar on which the scale is displayed, the color change of the water-reactive dye is indicated around the scale so that the user can quickly and accurately identify the water level.

In addition, according to the present invention, by photographing the point where the color change occurs with a camera and identifying the water level corresponding to the point, it is possible to grasp the changing water level in real time even if no person is dispatched to the farmland to check the water level. have.

In addition, according to the present invention, by indicating the color change of the water-reactive dye around the scale, it is possible to quickly identify the scale indicating the water level in the image taken through the camera, as well as improve the identification accuracy, so that accurate water level measurement is possible. There is this.

In addition, according to the present invention, the user can secure an accurate data set on changes in the water level in agricultural land, and when applying artificial intelligence to future irrigation plans, the data set can be used for learning the neural network, so that a robust neural network can be built. There is an expected effect.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a view showing a scale bar for measuring the water level according to an embodiment of the present invention.
Figure 2 is a view showing a scale bar for measuring the water level according to another embodiment of the present invention.
3 is a view showing a state in which the water level measurement scale bar is installed on the ground filled with water.
4 is a view showing a discolored state of the water-reactive dye painted on the scale bar for water level measurement shown in FIG. 1;
5 is a view showing a discolored state of the water-reactive dye painted on the scale bar for measuring the water level shown in FIG. 2 .
6 is a view showing a water level measurement system according to an embodiment of the present invention.
7 is a diagram illustrating a state in which a water level measurement scale bar and a camera are connected by a connecting rod;
8 is a view showing a scale bar for water level measurement taken by a camera.
9 is a view for explaining a method of identifying a water level corresponding to a discoloration point.
10 is a view for explaining a preset area in an image captured by a camera;
11 is a view for explaining a method of reading an image code included in a scale corresponding to a discoloration point;
12 is a view for explaining a method of reading a character written on a scale corresponding to a discoloration point;

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In the present specification, that any component is disposed on the “upper (or lower)” or “top (or lower)” of a component means that any component is disposed in contact with the top (or bottom) surface of the component, as well as , may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, in the present specification, when it is described that a component is "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components may be formed between each component. It is to be understood that elements may be “interposed,” or each element may be “connected,” “coupled,” or “connected to,” through another element.

In addition, in this specification, when "A and / or B", unless otherwise specified, means A, B or A and B, and when "C to D", it is Unless otherwise specified, it means C or more and D or less

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

First, the scale bar for measuring the water level of the present invention will be described in detail with reference to FIGS. 1 to 5 .

1 is a view showing a scale bar for measuring a water level according to an embodiment of the present invention, and FIG. 2 is a view showing a scale bar for measuring a water level according to another embodiment of the present invention. In addition, FIG. 3 is a view showing a state in which the scale bar for measuring the water level is installed on the ground filled with water.

4 is a view showing a discolored state of the water-reactive dye painted on the scale bar for water level measurement shown in FIG. 1, and FIG. 5 is a discolored state of the water-reactive dye painted on the water level measurement scale bar shown in FIG. is a diagram showing

1 and 2, the scale bar (hereinafter, scale bar, 1) for measuring the water level of the present invention can be inserted into the ground to measure the water level rising to the ground, and for this purpose, the tip part 10, the support part ( 20) and the rod part 30 may be included. The scale bar 1 shown in FIGS. 1 and 2 is exemplary, and its components are not limited to the embodiment shown in FIGS. 1 and 2 , and some components may be added, changed, or deleted as necessary. can be

The tip portion 10 , the support portion 20 , and the rod portion 30 may be integrally formed to constitute the scale bar 1 , or each component may be assembled to constitute the scale bar 1 . Hereinafter, each component of the scale bar 1 will be described in detail.

The tip portion 10 is formed to be sharp in the vertical direction and may be inserted into the ground. Specifically, one end of the tip portion 10 is formed to be pointed, and one end formed to be pointed may be inserted while digging into the ground. The tip portion 10 may have a polygonal pyramid structure as shown in FIG. 1 , or may have a conical structure as shown in FIG. 2 .

On the other hand, the ground into which the tip portion 10 is inserted may mean any ground, but hereinafter, for convenience of explanation, it will refer to the bottom of agricultural land.

The support part 20 may come into contact with the ground according to the insertion of the tip part 10 .

Referring to FIG. 3 , the tip 10 formed at the lower end of the scale bar 1 may be inserted into the ground until the support 20 comes into contact with the ground. The support part 20 may be formed to be wide in the horizontal direction, and specifically, the cross-sectional area of the support part 20 may be formed to be larger than the cross-sectional area of the tip part 10 . Accordingly, the support portion 20 can be in contact with the ground in a wide area, and it is possible to prevent the tip portion 10 from being deeply inserted into the ground.

Meanwhile, in order for the tip 10 to more easily dig into the ground, a thread 11 may be formed on the outer peripheral surface of the tip 10 . As shown in FIG. 2 , when the tip portion 10 has a conical structure formed sharply downward, a thread 11 may be formed on the outer peripheral surface of the tip portion 10 . Accordingly, the tip 10 can be more easily inserted into the ground while rotating in the circumferential direction.

The bar part 30 may be formed on the support part 20 and extend in a vertical direction from the support part 20 .

The bar part 30 may have a sufficient height to measure the water level when the water rises on the ground. For example, when the scale bar 1 is installed in farmland, the bar part 30 has a height of about 1.5 [m]. can have a height.

Such a bar part 30 may include a scale 31 marked along the length direction and a water-reactive dye 32 painted along the length direction. Here, the longitudinal direction may refer to a direction in which the rod part 30 extends.

The scale 31 may indicate a height from the support 20 . As described above, the tip portion 10 may be inserted until the support portion 20 comes into contact with the ground, and when the tip portion 10 is completely inserted, the height of the support portion 20 may be the same as the height of the ground.

Accordingly, the height from the support 20 may be the same as the height from the ground, and the scale 31 indicating the height from the support 20 may indicate the height (water level) of the water rising on the ground.

The scale 31 may be displayed on only one side of the bar part 30 as shown in FIGS. 1 and 2 , or may be displayed so as to surround the entire outer surface of the bar part 30 .

On the other hand, the water-reactive dye 32 is an arbitrary dye that reacts when in contact with water, and may be painted along the length direction of the rod part 30 in consideration of the filling of water in the longitudinal direction of the rod part 30 .

As shown in FIG. 1 , the water-reactive dye 32 may be formed side by side in a region that does not overlap the scale 31 . When the water-reactive dye 32 and the scale 31 are respectively formed in the non-overlapping areas, the water level can be measured while using a small amount of the water-reactive dye 32 , which is relatively expensive.

Alternatively, as shown in FIG. 2 , the water-reactive dye 32 may be applied to the area marked with the scale 31 . When the water-reactive dye 32 is painted on the scale 31 itself, as will be described later, when the water-reactive dye 32 reacts with water, the scale 31 corresponding to the discoloration area can be intuitively grasped.

In one example, the water-reactive dye 32 may be a dye that changes color when it comes into contact with water.

Referring to FIG. 3 and FIG. 4 which is an enlarged view of area A of FIG. 3 , when a part of the rod part 30 is submerged in water, the area in which the water-reactive dye 32 is painted in the rod part 30 is in the water. It may be divided into a submerged submerged area 32a and a non-immersed area 32b outside the water. At this time, the water-reactive dye 32 of the submerged region 32a may be discolored to express a color different from that of the water-reactive dye 32 of the non-immersed region 32b.

The water-reactive dye 32 discolored by submersion may be restored to its original color when exposed to air due to a drop in water level. Specifically, in FIG. 4 , the upper portion of the submerged region 32a may be converted to the non-immersed region 32b as the water level is lowered, and the water-reactive dye 32 painted in the corresponding position has its own color as it is exposed to air. can be restored to

In another example, the water-reactive dye 32 may be a colored dye that dissolves in contact with water.

Referring to FIG. 5 in which the scale bar 1 is replaced with the one shown in FIG. 2 , which is an enlarged view of area A of FIG. 3 , when a part of the bar 30 is submerged in water, the water reaction of the submerged area 32a The dye 32 may be dissolved in water. In other words, the water-reactive dye 32 painted on the submerged area 32a may be dissolved in water and disappear. Accordingly, the color of the submerged region 32a may be the original color of the rod portion 30 , and only the water-reactive dye 32 of the non-immersed region 32b may express the original color of the dye.

After the water-reactive dye 32 is dissolved, the water-reactive dye 32 is not restored even if the portion that was the submerged area 32a is exposed to the air due to a drop in the water level, so the water-reactive dye 32 dissolved in water is the maximum It can be used to measure the water level.

On the other hand, in an environment in which the color change of the water-reactive dye 32 cannot be confirmed, for example, in an environment where visible light is not sufficiently reflected (night, dawn), the user can identify the water level with the water-reactive dye 32 (ultraviolet). A water-soluble dye that absorbs and emits ray) may be used. In this example, the water-reactive dye 32 may be transparent, unlike the above-described examples.

Referring to FIG. 5 as an example, the water-soluble water-reactive dye 32 painted on the submerged area 32a may be dissolved in water, and only the water-reactive dye 32 painted on the non-immersed area 32b may remain. At this time, the user may irradiate UV to the scale bar 1 to check the water level, and the water-reactive dye 32 in the non-immersion area 32b may be excited by UV to emit fluorescence.

In this way, when the water-reactive dye 32 emits fluorescence, the user can secure a field of view even to the scale 31 near the water-reactive dye 32, so that even in an environment where visible light is not reflected, the user can see the scale 31 with his eyes. can be identified.

According to the present invention described above, in confirming the water level through the bar marked with the scale 31, the original color of the water-reactive dye 32 or the color change of the water-reactive dye 32 is displayed around the scale 31. It allows the user to quickly and accurately identify the water level.

Next, the water level measurement system of the present invention will be described in detail with further reference to FIGS. 6 to 11 .

6 is a diagram illustrating a water level measurement system according to an embodiment of the present invention. 7 is a diagram illustrating a state in which a water level measurement scale bar and a camera are connected by a connecting rod.

8 is a diagram illustrating a water level measurement scale bar photographed by a camera, and FIG. 9 is a diagram for explaining a method of identifying a water level corresponding to a discoloration point. Also, FIG. 10 is a diagram for explaining a preset area in an image captured by a camera.

11 is a diagram for explaining a method of reading an image code included in a scale corresponding to a discoloration point, and FIG. 12 is a diagram for explaining a method of reading a character written on a scale corresponding to a discoloration point.

Referring to FIG. 6 , the water level measurement system 1 according to an embodiment of the present invention includes a water level measurement scale bar (hereinafter, scale bar 1), a camera 2 , a processor 3 and a processor 3 . It may include a memory (not shown) for operation. The water level measurement system 1 shown in FIG. 6 is according to an embodiment, and its components are not limited to the embodiment shown in FIG. 6, and some components may be added, changed, or deleted as necessary. have.

Since the scale bar 1 constituting the water level measurement system 1 is the same as that described with reference to FIGS. 1 to 5 , a detailed description thereof will be omitted below.

The camera 2 may photograph a discoloration point of the water-reactive dye 32 painted on the scale bar 1 , and the processor 3 may identify a water level corresponding to the discoloration point. Here, the processor 3 may be included in the camera 2 to perform an identification operation, or may perform an identification operation outside the camera 2 through wired/wireless communication with the camera 2 .

Meanwhile, the discoloration point may mean a point at which the color of the water-reactive dye 32 is changed. Specifically, when the water-reactive dye 32 is discolored by contact with water, the discoloration point may mean a boundary at which the color of the water-reactive dye 32 changes. 4 and 5 as an example, the discoloration point may mean a boundary between the submerged area 32a and the non-immersed area 32b.

The camera 2 may photograph a discoloration point by detecting visible light. However, as described above, when the water-reactive dye 32 is a water-soluble dye that absorbs UV and emits light, the camera 2 may further include UV illumination for irradiating UV to the water-reactive dye 32 .

In this case, the UV irradiated from the UV light may excite the water-reactive dye 32 so that the water-reactive dye 32 emits light in the visible light region, and the camera 2 detects the light emission to photograph the discoloration point. have.

The camera 2 may be installed in a fixed type with respect to the scale bar 1 or may be installed in a non-fixed type. First, the fixed camera 2 will be described.

The camera 2 may be fixedly installed at a preset position with respect to the scale bar 1 .

Referring back to FIG. 6 , the center coordinates of the scale bar 1 may be (x _r , y _r , z _r ) and the center coordinates of the camera 2 may be (x _c , y _c , z _c ). . In this case, the vector between the center coordinates of the camera 2 and the center coordinates of the scale bar 1 may be constant. In other words, each of x _r -x _c , y _r -y _c , and z _r -z _c may always have a constant value.

In order to structurally fix the relative position between the scale bar 1 and the camera 2, the water level measurement system 1 of the present invention has one end connected to the upper end of the scale bar 1 and the other end extending in the horizontal direction, so that the camera (2) may further include a connecting rod (4) for supporting.

Referring to FIG. 7 , the connecting rod 4 is formed in a 'L' shape, and both ends may be respectively connected to the scale bar 1 and the camera 2 . The connecting rod 4 and the scale bar 1 may be integrally formed or may be assembled with each other. However, in order to accurately fix the relative positions of the camera 2 and the scale bar 1, it may be preferable that the connecting rod 4 and the scale bar 1 are integrally formed.

In addition to fixing the relative positions of the center coordinates (x _r , y _r , z _r ) of the scale bar 1 and the center coordinates (x _c , y _c , z _c ) of the camera 2 are fixed, the shooting of the camera 2 The range can also be fixed.

)과 화각의 중앙에서 촬영되는 중앙 눈금(center scale)은 고정될 수 있다. 즉, 중앙 눈금은 항상 특정 값일 수 있다. 이러한 고정 설치를 통해, 카메라(2)의 촬영 범위는 고정될 수 있고, 카메라(2)는 항상 고정된 위치의 눈금막대(1)를 촬영할 수 있다.Referring back to FIG. 7 , the angle of view of the camera 2 (

) and the center scale photographed at the center of the angle of view may be fixed. That is, the center scale may always be a specific value. Through this fixed installation, the shooting range of the camera 2 can be fixed, and the camera 2 can always shoot the scale bar 1 at a fixed position.

Referring to FIG. 8 , the above-described fixed camera 2 may capture a fixed region image. Since the position of the scale bar 1 is fixed on the image, only the water level can be photographed differently in the fixed area image.

In this case, the processor 3 may detect the discoloration point and identify the water level corresponding to the coordinates of the discoloration point. To this end, the processor 3 may use various image processing methods. For example, the processor 3 may detect a discoloration point using a Hue, Saturation, Value (HSV) algorithm. Specifically, the processor 3 may detect the discoloration point by converting the RGB color in the fixed region image to the HSV color and extracting a desired color from the converted HSV color.

Referring to FIG. 9, which is an enlarged view of area B of FIG. 8, the processor 3 is the boundary between the submerged area 32a and the non-immersed area 32b, and can detect a point where the water-reactive dye 32 is discolored. have. Then, the processor 3 may identify the coordinates of the discoloration point, and may identify the water level corresponding to the coordinates.

More specifically, the camera 2 shoots the scale bar 1 at a fixed position, so the longitudinal coordinates of each scale 31 displayed on the scale bar 1, that is, the y-axis coordinates, can be preset. . As shown in FIG. 9 , the y-axis coordinates of each scale 31 may be preset from y1 to y9, and the processor 3 may identify the coordinates of the discoloration point as y5. The processor 3 may identify the water level corresponding to the y5 coordinate with reference to the memory in which the coordinates set on each scale 31 and the water level corresponding thereto are stored.

On the other hand, when the relative position of the camera 2 and the scale bar 1 is misaligned or the shooting range of the camera 2 is misaligned due to an external factor, an error may occur in the water level identification method using the fixed area image.

In order to prevent such an error, the processor 3 may generate a notification message when a part or all of the scale bar 1 is identified outside a preset area of the image captured by the camera 2 .

As described above, since the camera 2 always photographs the scale bar 1 at a fixed position, the scale bar 1 may be located in a preset region within the fixed region image. Information on the preset region may be stored in the memory, and the processor 3 may identify the preset region with reference to the memory.

Referring to FIG. 10 , a scale bar 1 may be positioned within a preset area of the fixed area image. Natural disasters such as storms, strong winds, lightning strikes, hail, etc. occur in the farmland where the water level measurement system 1 is built, and the relative position between the camera 2 and the scale bar 1 is shifted or the shooting range of the camera 2 is shifted. In this case, the scale bar 1 may be photographed outside a preset area.

The processor 3 specifies the position of the scale bar 1 in the fixed region image by using an object detection algorithm, and compares the position of the scale bar 1 with the boundary of a preset region. It can be determined whether the bar 1 is located within a preset area.

When it is determined that part or all of the scale bar 1 is located outside the preset area, the processor 3 may generate a notification message. Then, the processor 3 transmits a notification message to the camera 2, thereby controlling the camera 2 to output a warning display and/or warning alarm through its interface or control the camera 2 to stop shooting .

Also, the processor 3 may transmit a notification message to the user terminal. Here, the user terminal is a terminal of a user or farmland owner who operates the water level measurement system 1 , and may include all terminals capable of data communication such as a mobile phone, a PC, a laptop computer, and a tablet.

In this way, by sending a notification message to the user, the system operator and/or the landlord can detect that an error has occurred in the water level measurement method, and can implement follow-up measures to normalize it.

Next, the non-fixed camera 2 will be described, but the water level detection method to be described later may also be applied to the above-described fixed camera 2 .

The non-fixed camera 2 may mean a camera 2 whose relative position with the scale bar 1 is not fixed, unlike those described with reference to FIGS. 6 and 7 . The non-fixed camera 2 may be installed at any position capable of photographing the scale bar 1 .

The processor 3 may identify the scale 31 located at the discoloration point in the image taken by the camera 2 , and read the image code included in the scale 31 to identify the water level. In this case, since the scale bar 1 is not located in a fixed area in the photographed image, the processor 3 may use various methods such as an object extraction algorithm and an HSV algorithm to detect a discoloration point.

When the discoloration point is detected, the processor 3 may identify the scale 31 located at the discoloration point, more specifically, the scale 31 closest to the discoloration point. To this end, the processor 3 may enlarge a region of interest (ROI) in the image, or may use an arbitrary feature extraction algorithm.

Then, the processor 3 may read the image code included in the identified scale 31 to identify the water level. The scale 31 may include an arbitrary image code, and furthermore, the scale 31 itself may be composed of an image code. Here, the image code is a one-dimensional or two-dimensional code that transmits information in the form of an image, and may be a barcode, a QR code, or the like.

Referring to FIG. 11 , the scale 31 may be composed of an image code. Information included in the image code may indicate a water level corresponding to each scale 31 . The processor 3 may read the image code through any method used in the art, and may identify the water level based on the read information.

In addition, after detecting the discoloration point, the processor 3 identifies the scale 31 located at the discoloration point, more specifically, the scale 31 closest to the discoloration point, and writes the characters written on the identified scale 31 . It can also be read to identify the water level. Here, the character may indicate a water level corresponding to each scale 31 .

Referring to FIG. 12 , numbers may be written on each scale 31 . The processor 3 may identify the scale 31 located at the discoloration point and read the number '50' written on the scale 31 . To this end, the processor 3 partially enlarges the number region in which the number is written as the region of interest (ROI), and applies the OCR (Optical Character Recognition) method to the enlarged image to read the number '50'. can

On the other hand, even within one last period of agricultural land, the water level of a part closest to the water channel to which water is supplied may rise first, and the water level of a part furthest from the water channel may rise last. At this time, in order to identify even a water level change occurring at one end, the user may install the scale bar 1 and the camera 2 near the vertex of the corresponding end unit, respectively.

In this case, the water level can be identified for each section of the final water level, and further, the daily and monthly minimum water level, the maximum water level, and the average water level of each last water level can be identified, respectively. If the soil is dry or the crops have high water absorption, the difference between the maximum water level and the average water level may be large. On the other hand, the difference between the maximum water level and the average water level may be small when the soil condition is moist or the water absorption of crops is low. Through this, it is possible to estimate the condition of the soil or the water absorption of crops.

These data can be used to analyze the soil suitability of individual farmland and the condition of crops, and can be used as an important parameter in establishing a small-scale irrigation plan.

According to the present invention described above, even if a person is not dispatched to the farmland to check the water level, it is possible to grasp the water level changing in real time through the camera 2, and the original color of the water-reactive dye 32 or the water-reactive dye 32 By indicating the color change of the scale 31 around the scale 31, it is possible not only to quickly identify the scale 31 indicating the water level in the image taken through the camera 2, but also to improve the identification accuracy so that accurate water level measurement is possible. There are advantages.

In addition, when the present invention is applied to agricultural land, the camera 2 can photograph the growth environment of surrounding crops in addition to the scale bar, and the processor 3 can identify the size of the crop compared to the length of the scale bar, It is also possible to identify the degree of ripeness of a crop based on the color of the crop. The data identified in this way can be used to analyze the growth environment according to the water level, and can be used as an important parameter in establishing an irrigation plan.

Through these advantages, the user of the present invention can secure an accurate data set on changes in the level of agricultural land and changes in the growth environment, and when applying artificial intelligence to future irrigation plans, the data set can be used for learning the neural network, so robustness It has the expected effect of building robustness and efficient neural networks.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in the present specification. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention are not explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

Claims (19)

delete delete delete delete delete delete delete delete delete delete It consists of a tip part inserted into the ground, a support part that abuts against the ground as the tip part is inserted, and a rod part extending in a vertical direction from the support part and containing a scale marked along the length direction and a water-reactive dye painted along the length direction. scale bar for water level measurement;
a camera for photographing a discoloration point of the water-reactive dye;
a connecting rod formed in a 'L' shape, having one end connected to the upper end of the scale bar and the other end supporting the camera so that the relative positions of the camera and the scale bar are fixed; and
A processor for identifying a water level corresponding to the discoloration point and generating a notification message when a part or all of the scale bar is identified outside a preset area of the image taken by the camera
water level measurement system.
12. The method of claim 11,
The water-reactive dye is a water-soluble dye that absorbs UV and emits light,
The camera is a water level measurement system comprising a UV light.
delete delete 12. The method of claim 11,
The processor detects the discoloration point and identifies a water level corresponding to the coordinates of the discoloration point.
delete 12. The method of claim 11,
The processor is a water level measurement system for transmitting the notification message to the user terminal.
12. The method of claim 11,
The processor identifies a scale located at the discoloration point, and reads an image code included in the scale to identify the water level.
12. The method of claim 11,
The processor reads the characters written on the scale corresponding to the discoloration point to identify the water level.

Images