KR102259801B1 - Ultrasonic water level apparatus that can identify structure of water level location using 3d modeling - Google Patents

Abstract

The present invention relates to an ultrasonic water level measuring apparatus which comprises: an ultrasonic sensor (10) installed in a water level measuring place to exchange ultrasonic waves of a preset frequency band in accordance with the water level measuring distance with a difference in the time; and a converter (20) which includes a vertical structure filtering unit (38) which analyzes the ultrasonic waves exchanged with a different in the time by the ultrasonic sensor (10), determines the presence or absence and the installation direction of a structure installed in the water level measuring place, realize a three-dimensional modeling, allow a user to check the site situations from a remote place, control the exchange of ultrasonic waves meeting the preset frequency band on the ultrasonic sensor (10), and filter the ultrasonic waves reflected from the vertical structure installed at the water level measuring position among the received ultrasonic waves regardless of the water level measurement, and a horizontal structure filtering unit (39) which is able to filter the ultrasonic waves reflected from a horizontal structure. The converter (20) measures the water level by filtering the reception frequencies reflected from the vertical structure and the horizontal structure, which are installed. The present invention is able to identify the position of a structure by the ultrasonic sensor (10), precisely check the site situations at a position to measure the water level, and precisely measure the water level based on the site situations such as the position of the structure.

Description

Ultrasonic water level measuring device that can grasp the structure of the water level measurement position using 3D modeling {ULTRASONIC WATER LEVEL APPARATUS THAT CAN IDENTIFY STRUCTURE OF WATER LEVEL LOCATION USING 3D MODELING}

The present invention relates to an ultrasonic water level measuring apparatus capable of grasping the position of a structure installed in a water level measuring place through three-dimensional modeling through ultrasonic waves received by an installed ultrasonic sensor.

In general, a water level measuring device is a device that is basically necessary to measure the water level in a place requiring water treatment such as a water purification plant, a sewage treatment plant, a wastewater treatment plant, a water tank, a river, a river, a reservoir, a dam, or an industrial site that requires the management of other liquids. Such a water level measuring device installs a water level sensor and controls the sensor value to continuously and continuously monitor the water level to adjust the water level.

For example, in the water treatment process, water level management is necessary for cost reduction and process efficiency to prevent unnecessary work and malfunction by stopping the process when the water level is above a certain amount or by stopping the process at a water level below a certain amount. will be.

In addition, the water level sensor may be configured for the purpose of simply measuring the water level, but when more than a certain amount of liquid is introduced into the limited storage, the liquid flows out and when the amount is less than a certain amount, the liquid flows in to constantly manage the water level. By connecting with , a complex water level detection system can be constructed.

The type of water level sensor is largely divided into contact type and non-contact type. The contact type is a sensor that detects the water level by sending a current to the electrode sensor and controlling signal processing when it comes into contact with a liquid and is energized. Float type, contact type, gear type, etc. There is this.

The contact-type sensor has poor precision and has problems in installation and maintenance of the sensor in case of failure, so its use is decreasing.

In order to improve this, recently, an ultrasonic non-contact sensor has been proposed. Ultrasonic non-contact sensor can measure without direct contact with liquid. From the sensor to the bottom of the reservoir, the ultrasonic wave passes through the air, hits the surface of the object to be measured, and calculates the time and speed to return. By calculating the difference between the distance of and the distance from the sensor to the object surface, the water level value is finally informed.

Depending on the frequency band, the measuring distance using ultrasonic waves can be measured from 30cm as close to as far as 60m, so there are various types.

On the other hand, when the space in which the ultrasonic measuring device is installed is narrow or a plurality of facilities are installed in a location to be measured, the transmitted ultrasonic waves are reflected and received by the installed facilities.

In addition, an error in measurement occurs due to the installed structure, and there is a risk of malfunction of the device due to an error in the water level measurement value caused by such ultrasonic waves. Therefore, it is important to accurately grasp the information about the structure by grasping the site situation. need.

Laid-Open Patent Publication No. 10-2005-0040899, 'A water level measuring device and a water level measuring method using ultrasonic waves'

Accordingly, an object of the present invention is to provide an ultrasonic water level measuring device capable of grasping the structure at the water level measuring position using three-dimensional modeling, which allows to accurately grasp the on-site situation at the water level measuring position by checking the presence of a structure at the water level measuring position. have.

In accordance with the above object, the present invention provides an ultrasonic water level measuring device, an ultrasonic sensor (10) installed at a water level measuring place and transmitting and receiving ultrasonic waves of a frequency band set according to a water level measuring distance with a time difference, and the ultrasonic sensor (10) By analyzing the ultrasonic waves transmitted and received with a time difference by , the presence or absence of a structure installed at the water level measurement site and the installation direction are implemented to implement three-dimensional modeling so that the on-site situation can be checked from a remote location, and the frequency band set in the ultrasonic sensor 10 The vertical structure filtering unit 38 filters the ultrasonic waves reflected by the vertical structure installed at the water level measurement position regardless of the water level measurement among the received ultrasonic waves, and the ultrasonic waves reflected by the horizontal structure. It is characterized in that it is composed of a horizontal structure filtering unit 39 to filter the installed vertical, characterized in that it is composed of a transducer 20 for measuring the water level by filtering the received frequency reflected by the horizontal structure.

In addition, the ultrasonic sensor 10 is characterized in that it is installed with different transmission directions of ultrasonic waves in four divided directions.

In addition, the transducer 20 sequentially transmits ultrasonic waves from the ultrasonic sensor 10 in order to prevent overlapping of the controller 21 for controlling the overall operation of the transducer 20 and the ultrasonic waves transmitted and received by the installed ultrasonic sensor 10 . The transmission timing management unit 22 for controlling the transmission of , the echo signal collection unit 23 for managing the received echo signals of the ultrasonic waves sequentially transmitted from the ultrasonic sensor 10, and the echo signal collection unit 23 stored in the It is characterized in that the echo signal analysis unit 24 for classifying and managing the echo signal of the ultrasonic sensor 10 by transmission time and transmission direction is included.

In addition, an echo time determination unit 26 that analyzes a response signal of an ultrasonic echo signal sequentially received through the ultrasonic sensor 10 to determine in which direction the structure exists among the four divided positions, and the ultrasonic sensor 10 ) by analyzing the echo signal intensity of the ultrasonic waves sequentially received to determine in which direction among the four divided positions the structure is located, the echo intensity determining unit 27, and the echo time determining unit 26 and the echo intensity It is characterized in that the image generator 28 is included to determine the existence of a structure installed at the water level measurement site through the determination unit 27 and provide an image so that it can be visually confirmed.

In addition, by transmitting the image data of the display unit 29 and the display unit 29 to the integrated control center at a remote location, the display unit 29 that provides an image to show the information on the existence of the structure by the image generation unit 28 to the user. It is characterized in that it is composed of a wireless communication unit 30 that allows to check information about the structure at the location of the water level measurement location at a remote location.

In addition, it is characterized in that the received ultrasonic wave filtering unit 25 is included and configured to filter the received ultrasonic wave reflected from the medium, not the structure, from the received ultrasonic echo signal to accurately determine the data of the structure.

The present invention has the effect of accurately confirming the on-site situation of the location where the water level is to be measured because the position of the structure can be grasped by the ultrasonic sensor, and accurate water level measurement is possible based on the on-site situation such as the location of the structure. .

1 is an installation configuration diagram of an ultrasonic water level measuring device capable of grasping a structure at a water level measuring position using three-dimensional modeling according to an embodiment of the present invention;
2 is a block diagram illustrating an operation configuration of an ultrasonic water level measuring device capable of grasping a structure at a water level measuring position using three-dimensional modeling according to an embodiment of the present invention;
3 to 4 are block diagrams for explaining the detailed configuration of a receiving ultrasonic filtering unit according to an embodiment of the present invention;
5 is a diagram schematically showing the ultrasonic frequency reflected by the vertical structure;
6 is a diagram schematically showing the ultrasonic frequency reflected by the horizontal structure;
7 is a detailed configuration diagram of the image coupling unit of the present invention;
8 is a diagram schematically showing the installation configuration of the ultrasonic sensor of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention transmits ultrasonic waves in a frequency band that humans cannot hear, and the time interval and speed between the transmitted ultrasonic waves and the received ultrasonic waves reflected by a medium (eg, liquid such as water) in configuring the water level measuring device to measure the water level by calculating , and it is possible to control the ultrasonic sensor 10 installed with the transducer 20 .

1 is an installation configuration diagram of an ultrasonic water level measurement device capable of grasping a structure position at a water level measurement location according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating an operation configuration.

The ultrasonic water level measuring device of the present invention is installed at a water level measurement place and transmits and receives ultrasonic waves of a frequency band set according to the water level measurement distance with a time difference, and is transmitted and received with a time difference by the ultrasonic sensor 10 By analyzing ultrasonic waves to determine the presence and installation direction of structures installed at the water level measurement site, three-dimensional modeling is implemented so that the on-site situation can be checked from a remote location, and the ultrasonic sensor 10 controls the transmission and reception of ultrasonic waves in accordance with the set frequency band. The vertical structure filtering unit 38 for filtering the ultrasonic waves reflected by the vertical structure installed at the water level measurement position irrespective of the water level measurement among the ultrasonic waves received together with the water level measurement, and the horizontal structure filtering unit for filtering the ultrasonic waves reflected by the horizontal structure It is composed of (39) and is composed of a transducer (20) for measuring the water level by filtering the received frequency reflected by the installed vertical and horizontal structures.

In the present invention, by analyzing the ultrasonic waves transmitted and received by the ultrasonic sensor 10 installed in the water level measurement place, the presence or absence of the installed structure is determined and this can be visually confirmed through three-dimensional modeling.

The ultrasonic sensor 10 may be installed in a water level measurement place (eg, a deep water tank or a remote island wallpaper), and each ultrasonic sensor 10 in a state where the ultrasonic sensor 10 is installed. ) is installed to transmit and receive ultrasonic waves with a time difference.

When ultrasonic waves are transmitted/received by the ultrasonic sensor 10 at the same time, superposition of ultrasonic waves is generated, so that it is difficult to determine which ultrasonic sensor 10 transmits and receives ultrasonic waves among the installed ultrasonic sensors 10 .

The ultrasonic sensor 10 of the present invention is installed at a position to measure the water level, and is transmitted by changing the transmission direction of the ultrasonic wave in four divided directions based on the lower side of the ultrasonic sensor 10 as shown in FIG. 8 , respectively. It is to control the ultrasonic waves transmitted and received by the ultrasonic sensor 10 are sequentially transmitted and received with a time difference.

The ultrasonic data sequentially transmitted and received by the installed ultrasonic sensor 10 is transmitted to the transducer 20 to determine the presence or absence of a structure installed in the water level measuring device.

2 is a block diagram for explaining in detail the configuration of the converter 20 of the present invention.

In the transducer 20 of the present invention, the ultrasonic sensor 10 sequentially performs ultrasonic waves in order to prevent overlapping of the controller 21 for controlling the operation of the transducer 20 as a whole and the ultrasonic waves transmitted and received by the installed ultrasonic sensor 10 . The transmission timing management unit 22 for controlling the transmission of , the echo signal collection unit 23 for managing the received echo signals of the ultrasonic waves sequentially transmitted from the ultrasonic sensor 10, and the echo signal collection unit 23 stored in the An echo signal analysis unit 24 that classifies and manages the echo signal of the ultrasonic sensor 10 by transmission time and transmission direction, and the presence or absence of a structure by filtering the received ultrasound reflected from the medium, not the structure, from among the received ultrasound echo signals Analyze the response signal of the echo signal sequentially received through the receiving ultrasonic filtering unit 25 and the ultrasonic sensor 10 to accurately determine the information to determine which direction the structure is located in among the four divided positions The echo time determination unit 26, which analyzes the echo signal intensity of the ultrasonic waves sequentially received through the ultrasonic sensor 10, and determines which direction the structure is located among the four divided positions, the echo intensity determination unit 27 ), and the echo time determination unit 26 and the echo intensity determination unit 27 to determine the presence or absence of a structure installed at the water level measurement site and to provide an image so that it can be visually confirmed, an image generation unit 28 and , a display unit 29 that provides an image to show the presence or absence information of a structure by the image generating unit 28 to a user, and transmits the image data of the display unit 29 to an integrated control center at a remote location It is composed of a wireless communication unit 30 that allows to check the information about the structure in the water level measurement location.

The transmission timing management unit 22 controls the ultrasonic waves from the ultrasonic sensors 10 to be transmitted sequentially at a predetermined time interval without being transmitted simultaneously, so that the ultrasonic waves from the installed ultrasonic sensors 10 are sequentially transmitted.

When ultrasonic waves are simultaneously transmitted by the ultrasonic sensor 10, overlap occurs between the transmitted ultrasonic waves, and as shown in FIG. 8, the structure is installed in each direction of the water level measurement place by the ultrasonic sensor 10 installed in 4 divisions. In this case, the accuracy is lowered by the overlapping received ultrasound.

In particular, when ultrasound transmitted with directionality is simultaneously received, the presence or absence of an installed structure can be determined in determining the presence or absence of a structure by analyzing the received ultrasound, but the direction in which the structure is installed cannot be determined. ), it becomes difficult to confirm accurate structure information.

The echo signal collection unit 23 sequentially collects and manages the echo signals of the ultrasonic waves sequentially transmitted through the transmission timing management unit 22, and the ultrasonic waves transmitted with a time difference are reflected by the structure or medium and are received again in sequence. If so, manage it.

The echo signal analysis unit 24 manages the echo signals of the ultrasonic waves sequentially received by the echo signal collection unit 23, and among the received echo signals, the echo signals are reflected and received while classified by the installation direction of the ultrasonic sensor 10. Echo signals are classified and managed by reception time.

That is, the received echo signal is managed by dividing the received echo signal by the installation direction of the ultrasonic sensor 10 and the echo signals of the ultrasonic waves sequentially received by the sequentially transmitted ultrasonic waves. The direction in which the structure is installed can be determined together.

The receiving ultrasonic filtering unit 25 filters and removes the echo signal reflected by the medium, not the received ultrasonic wave reflected from the structure, among the received echo signals, and separates and manages only the echo signal for determining the presence or absence of the structure. .

When the water level is measured by the ultrasonic measuring device, accurate water level measurement is made using only the received ultrasonic wave reflected from the medium, and the received ultrasonic wave reflected from the structure is removed by filtering, but in the present invention, the presence or absence of the structure at the water level measurement position and According to the determination of the position, the received ultrasound reflected by the medium is filtered and removed.

In addition, the receiving ultrasonic filtering unit 25 filters the received ultrasonic wave reflected by the medium, and, in the case of measuring the water level by the ultrasonic measuring device, filters the received ultrasonic wave reflected by the structure and removes it. there will be

That is, it is possible to operate according to the user's setting function by controlling to remove the received ultrasonic wave reflected from the medium or selectively remove the received ultrasonic wave reflected from the structure as necessary.
As the water level measuring device of the present invention is installed in a place where the space is narrow or there are many installed vertical and horizontal structures, the transmitted ultrasonic waves are reflected not only on the medium but also on the installed vertical and horizontal structures, and may be received through the ultrasonic sensor 10 .
As shown in FIGS. 5 to 6 , the received ultrasonic wave may be an ultrasonic wave that is reflected by hitting an actual medium and an ultrasonic wave that is reflected by an installed vertical or horizontal structure, and the ultrasonic wave reflected by a vertical or horizontal structure other than the medium measures the water level. Acts as a factor that interferes with accurate measurement values.
In the present invention, in order to measure the water level using only the received ultrasonic waves that are reflected from the medium among the received ultrasonic waves, the ultrasonic waves reflected by hitting vertical and horizontal structures among the received ultrasonic waves are transmitted through the receiving ultrasonic wave filtering unit 25. The intensity and shape of unnecessary frequencies , it is possible to minimize the interference of water level measurement by filtering the signal.
Referring to FIG. 3 , the ultrasonic reception filtering unit 25 of the present invention filters the received ultrasonic waves, in addition to the ultrasonic waves reflected by the actual medium, the ultrasonic waves reflected by the vertical structure and the horizontal structure installed at the water level measurement site, respectively. By filtering by the structure filtering unit 38 and the horizontal structure filtering unit 39, only the intensity, shape, and signal of a predetermined frequency are received and recognized.
The vertical structure filtering unit 38 filters and removes the ultrasonic waves reflected by the vertical structure installed during the water level measurement, and the horizontal structure filtering unit 39 filters and removes the ultrasonic waves reflected by the horizontal structure installed during the water level measurement. It is possible to increase the accuracy of the received ultrasound.
4 is a block diagram illustrating the configuration of the vertical structure filtering unit 33a and the horizontal structure filtering unit 33b, which are detailed configurations of the receiving ultrasonic filtering unit 25 of the present invention, the intensity of the reference frequency, the shape, the signal An initial setting unit 34 for presetting a value, a scanning unit 35 for inputting a received frequency measurement value, and a scanning unit 35 with the intensity, shape, signal value and the frequency set in the initial setting unit 34 The intensity, shape, and signal value of the frequency out of the initial setting unit 34 after comparing the received frequency measurement value through the matching unit 36 for comparing the frequency measurement value input by the matching unit 36 is It consists of a masking unit 37 that is excluded from the reception frequency.
The initial setting unit 34 sets the water level measurement range in advance when measuring the water level at the place where the ultrasonic sensor 10 is installed, and the frequency that is reflected by hitting the actual medium among the frequencies reflected by the medium and received by the ultrasonic sensor 10 . The intensity, shape, and signal range are measured and set as the initial value.
The scan unit 35 inputs the frequency measurement value received through the ultrasonic sensor 10 so as to be comparable with the intensity, shape, and signal value of the initial frequency, and receives the reflected signal after being transmitted through the ultrasonic sensor 10 . The frequency is read in real time and input as a frequency measurement value.
The measured value of the frequency input in real time through the scan unit 35 is compared with the intensity, shape, and signal value of the initially set frequency by the matching unit 36 .
The matching unit 36 compares the intensity, shape, and signal value of the frequency set by the initial setting unit 34 with the received frequency measurement value input through the scan unit 35 and sets the frequency set by the initial setting unit 34 . It distinguishes the frequency out of the signal value, that is, the reception frequency reflected by the installed vertical and horizontal structures rather than the medium.
The masking unit 37 excludes the received frequency measurement value that deviates from the intensity, shape, and signal value of the frequency initially set through the matching unit 36 from the frequency value used for water level measurement through a masking function. .
Therefore, in water level measurement, the strength, shape, and signal of the reception frequency reflected by the installed vertical and horizontal structures, which are factors of interference, are ignored, and only the strength, shape, and signal of the frequency reflected in the actual medium are recognized as reception and the water level is measured. It can be used to increase the accuracy of water level measurement.
The intensity, shape, and signal value of the initial frequency described above are reference values preset by the initial setting unit 34 , and the measured reception frequency means a frequency value received through the ultrasonic sensor 10 .

The echo time determination unit 26 analyzes the response time of the echo signal of the ultrasonic wave received after being transmitted by the ultrasonic sensor 10 and reflected by the structure, and the direction in which the ultrasonic wave is transmitted through the response signal of the reflected ultrasonic wave. To determine whether a structure exists in the

When the response signal of the received echo signal is short, it is determined that it is reflected by the structure rather than the medium, and when the response signal is relatively long, it is determined that the response signal is reflected by the medium, thereby determining the presence of the structure.

The echo intensity determination unit 27 determines the presence or absence of a structure through the intensity of the received ultrasound.

Among the ultrasonic waves received by the ultrasonic sensor 10, the ultrasonic wave reflected by the structure is absorbed by the structure and the echo intensity is weak, and the received ultrasonic wave reflected by the medium has a relatively strong echo intensity. The structure is judged to exist.

The image generator 28 determines the presence and direction of the structure installed at the water level measurement site through the echo signal of the received ultrasound analyzed by the echo time determination unit 26 and the echo intensity determination unit 27, and determines the actual water level. It will be combined with the drawing data of the measurement location, and it will be provided to visually confirm the presence or absence of the structure and the installation direction.

A detailed configuration of the image generating unit 28 will be described with reference to FIG. 7 .

The image generating unit 28 includes an installation information providing unit 31 that receives structural information such as the size and shape of the water level measurement site through drawing data that matches the on-site situation of the actual water level measurement site, and the installation information providing unit The water level measurement provided by the structure determination unit 32 and the installation information providing unit 31 that apply the determined structure presence and installation direction data after grasping the structural information of the water level measurement location through the drawing data of (31) It is composed of a three-dimensional modeling generating unit 33 that integrates the location drawing data, the presence or absence of a structure, and the installation direction data to provide a three-dimensional image of the presence and the installation direction of the structure installed at the water level measurement location.

The installation information providing unit 31 is provided with drawing data that can determine the structure of the water level measurement site in order to apply the data of the presence and installation direction of the structure determined by the ultrasonic measuring device to the actual field situation of the water level measurement site. .

In the case of a water level measurement site, a structure is sometimes installed from the beginning, but the installed structure data is changed, such as the installed structure is demolished or a new structure is installed. After that, it can be compared with the drawing data.

In the drawing data provided through the installation information providing unit 31, the presence or absence of the structure at the water level measurement location by the ultrasonic measuring device and the installation direction data are applied through the structure determination unit 32, and the changed structure data is updated with the latest information. It will have a function.

That is, the changed structure data is determined by matching the conventional structure drawing data and the measured structure data through the structure determination unit 32 .

The drawing data of the installation information providing unit 31, the presence or absence of the latest structure, and the installation direction data can be provided as an image through the 3D modeling generating unit 33 so that the user can visually check it, and through the 3D image It is possible to easily identify the changed structure data from the existing structure data.

Referring back to FIG. 2 , the display unit 29 provides the image data of the structure generated through the image generating unit 28 so that the user can visually check it, and the presence or absence of the structure can be easily determined through the 3D image. Structure data such as installation direction can be checked.

The data of the structure provided through the display unit 29 may be transmitted to the remote integrated control center and transmitted through the wireless communication unit 30 to enable integrated management, and as described above, a deep water tank or island wallpaper When it is difficult for an operator to visit the site according to the installation, the data transmitted through the wireless communication unit 30 can be collectively managed in the integrated control center, so maintenance is also easy.

In the foregoing description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims and equivalents to the claims.

(10)(10-1)(10-2)(10-3)(10-4)-- Ultrasonic sensor
(20)-- Transducer (21)-- Control Unit
(22)-- Transmission timing control unit (23)-- Echo signal collection unit
(24)-- Echo Signal Analysis Unit (25)-- Receiving Ultrasonic Filtering Unit
(26)-- Eco time judgment part (27)-- Eco intensity judgment part
(28)-- Image generation unit (29)-- Display unit
(30)-- Wireless Communication Department (31)-- Installation Information Provision Department
(32)-- Structure judgment unit (33)-- 3D modeling generation unit
(34)-- Initial setting part
(35)-- scan unit
(36)-- Matching part
(37)-- Masking part
(38)-- Vertical structure filtering part
(39)-- Horizontal structure filtering unit

Claims (6)

In the ultrasonic level measuring device,
An ultrasonic sensor 10 installed at a water level measurement place to transmit and receive ultrasonic waves of a frequency band set according to the water level measurement distance in four divided directions with a time difference;
By analyzing the ultrasonic waves transmitted and received with a time difference by the ultrasonic sensor 10 to determine the presence and installation direction of a structure installed at the water level measurement site, three-dimensional modeling is implemented so that the on-site situation can be checked from a remote location, and the ultrasonic sensor ( 10), a vertical structure filtering unit 38 that filters the ultrasonic waves reflected by the vertical structure installed at the water level measurement position regardless of the water level measurement among the received ultrasonic waves while controlling the transmission and reception of the ultrasonic waves according to the frequency band set in 10); It consists of a horizontal structure filtering unit 39 that filters the ultrasonic waves reflected from the structure, and a transducer 20 that filters the received frequency reflected by the installed vertical and horizontal structures to measure the water level,
The converter 20 includes a control unit 21 for controlling the operation of the converter 20 as a whole,
A transmission timing management unit 22 for controlling the ultrasonic waves to be sequentially transmitted from the ultrasonic sensor 10 in order to prevent overlapping of ultrasonic waves transmitted and received by the installed ultrasonic sensor 10;
An echo signal collecting unit 23 for managing the received echo signals of ultrasonic waves sequentially transmitted from the ultrasonic sensor 10;
an echo signal analysis unit 24 that classifies and manages the echo signals of the ultrasonic sensor 10 stored in the echo signal collection unit 23 by transmission time and transmission direction;
A receiving ultrasonic wave filtering unit 25 that filters the received ultrasonic waves reflected by a medium other than the structure among the received ultrasonic echo signals to accurately determine the data of the structure;
An echo time determination unit 26 for analyzing a response signal of an ultrasonic echo signal sequentially received through the ultrasonic sensor 10 to determine in which direction the structure exists among the four divided positions;
An echo intensity determination unit 27 for analyzing the echo signal intensity of ultrasonic waves sequentially received through the ultrasonic sensor 10 to determine in which direction the structure exists among the four divided positions;
An image generator 28 that determines the presence or absence of a structure installed at a water level measurement site through the echo time determination unit 26 and the echo intensity determination unit 27 and provides an image so that it can be visually confirmed;
a display unit 29 that provides information on the presence or absence of a structure by the image generation unit 28 as an image to a user;
It is composed of a wireless communication unit 30 that transmits the image data of the display unit 29 to an integrated control center at a remote location so that information about the structure at the location of the water level measurement can be confirmed at a remote location,
The image generating unit 28 includes an installation information providing unit 31 that receives structural information such as the size and shape of the water level measurement site through drawing data that matches the on-site situation of the actual water level measurement site, and the installation information providing unit The water level measurement provided by the structure determination unit 32 and the installation information providing unit 31 that apply the determined structure presence and installation direction data after grasping the structural information of the water level measurement location through the drawing data of (31) 3D modeling, characterized in that it is composed of a 3D modeling generating unit 33 that integrates the drawing data of the place, the presence or absence of the structure, and the installation direction data to provide the presence or absence and the installation direction of the structure installed in the water level measurement site as a 3D image Ultrasonic water level measurement device that can grasp the structure of the water level measurement position using
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