KR102193351B1 - Water quality measuring system by using drone - Google Patents

Abstract

In the present invention, a drone flying unmanned in order to observe the aquatic environment of a lake is lowered to be hovered in a state adjacent to the water surface, and the amount of dissolved oxygen according to the water level and water for microbial observation can be collected through the hovered drone. Of course, it relates to a water quality measurement system using a drone that can accurately measure water quality.
The present invention is a drone 100 for generating a water level value and a water quality value by automatically flying to a preset measurement location, a server 200 for receiving the water level value and water quality value from the drone 100, and the server In a water quality measurement system using a drone including a manager terminal 300 for receiving the freshwater quantity and the water quality status from 200, the drone 100 is located at the measurement location and photographed through a camera. An obstacle determination unit 103 for image processing and determining whether there is an obstacle on the surface of the measurement position, and when the obstacle determination unit 103 determines an obstacle, the drone ( A position correction unit 104 for flying 100), a counting unit 106 for transmitting the number of detection signals counting the detection signals generated by the water detection unit 105 to the water surface determination unit 107, and a water level In order to collect water for each, it includes a water collecting unit 112 consisting of a plurality of sample containers with an RFID tag that stores information on the measurement location, and the sleep determining unit 107 generates an error due to a change in the height of the water surface The number of normal detection signals is stored in advance to determine whether the drone 100 is adjacent to the water surface so that the number of detection signals counted by the counting unit 106 is equal to the number of normal detection signals, and the detection signal When the number reaches the number of normal detection signals, it is determined to be adjacent to the water surface, and when the number of normal detection signals is not reached, it is determined that it is not adjacent to the water surface.

Description

Water quality measurement system using drone {WATER QUALITY MEASURING SYSTEM BY USING DRONE}

The present invention relates to a water quality measurement system using a drone, and more particularly, a drone flying unmanned to observe the aquatic environment of a lake is lowered to be hovered close to the surface, and dissolved according to the water level through the hovered drone. It relates to a water quality measurement system using a drone that can accurately measure water quality as well as that it can collect water for oxygen content and microbial observation.

In general, water quality measurement is conducted to observe information such as water quality, water depth, water temperature, etc. of rivers or reservoirs, and there are manual and unmanned observations in which manpower is directly input.

Manual observation is an observation method that measures the water quality while moving in a boat by direct input of manpower. Unmanned observation is an observation method that measures water quality by installing unmanned observation equipment at a fixed point.

In the case of manual observation, there is a problem in that it takes a lot of travel time and manpower cost because manpower is directly input during water quality exploration and moves in a boat. In particular, in the case of dangerous places where exploration is impossible due to the input of manpower, it is difficult to measure water quality.

In the case of unmanned observation, there is a problem that the equipment installed in the water is corroded or broken in a way that the observation equipment is fixed at one point, and there is a problem that the equipment must be moved to the point where the observation equipment is installed for repair.

In addition, in the case of unmanned observation, since the exploration point is fixed at one point, it is impossible to measure the water quality in a wide range, and the accuracy of the water quality measurement value is deteriorated. In particular, in the case of observing a certain area, there is a problem that a large number of measuring devices are installed in the area or a water quality measuring device is moved to measure the water quality one by one, which takes a lot of cost and time.

In order to solve this problem, as described in Registration Patent No. 10-1564876 (Registration Date: October 26, 2015), by receiving a control signal from the outside, the power device is driven to set a plurality of remote locations. By moving to and receiving a control signal from the outside at each of the plurality of moving points, sampling the seawater at different locations into each of the plurality of reservoirs, and analyzing each seawater in the field through a measurement sensor. A remote watering boat ship that transmits analyzed seawater data and location information data from a GPS device to a remote location through an antenna, and a wireless control device that transmits a hull movement and water collection control signal to the ship from the outside to the antenna of the ship, And a computer for receiving and displaying the water sampling data and location information data transmitted from the hull, wherein the hull includes a water collecting device for sucking the seawater into the water collecting tank, and a direction changing device for switching the moving direction of the ship, A battery for supplying power to the hull and a control unit for controlling the hull, wherein the water collection device is composed of a water collection pump, a suction pipe, a water collection container, a water collection container opening and closing device, and a discharge pipe. When a control signal for water collection is received, the water collected by the water pump is filled in the plurality of water reservoirs as the water reservoir opening and closing device is opened and closed, and when the water collected by the water collection tank overflows, it is configured to discharge from the hull through the discharge pipe. A remote water quality measurement system is being used.

However, in the above registered patent, it is difficult to measure the water quality in a dangerous area because manpower must be put in to float or recover the hull at the point for measuring the water quality, and it is difficult to grasp the exact water level due to the hull shaking by the wave. There is a problem that it is difficult to measure water quality by water level.

Accordingly, there is a demand for the development of a water quality measurement system that can accurately measure the water quality by water level.

The present invention is proposed in order to solve the above-described problems, by measuring the number of counting water detected by using a water detection sensor attached to a drone flying unmanned, descending so that the drone can hover to a state close to the water surface. The purpose of this is to provide a water quality measurement system using drones.

In addition, there is an object to provide a water quality measurement system using a drone that can grasp the exact water level even if the wave height varies according to the wave and can measure the water quality by level.

In addition, there is an object to provide a water quality measurement system using a drone that can collect water for observation of dissolved oxygen and microorganisms according to the water level by hovering a drone.

In addition, there is an object to provide a drone having a surface hovering function capable of accurately measuring water quality for each water level, and a water quality measurement method using the same, because the drone is hovered in a state adjacent to the water surface.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A drone 100 for generating a water level value and a water quality value by automatically flying to a preset measurement location according to the present invention for achieving the above object, and for receiving the water level value and water quality value from the drone 100 In a water quality measurement system using a drone including a server 200 and a manager terminal 300 for receiving the freshwater amount and the water quality status from the server 200, the drone 100 is at the measurement location An obstacle determination unit 103 for determining whether there is an obstacle on the surface of the water surface by processing an image after being positioned and photographed through a camera, and a preset correction range when the obstacle determination unit 103 determines an obstacle A position correction unit 104 for flying the drone 100 by correcting a position inward, and a number of detection signals counting the detection signals generated by the water detection unit 105 to the water surface determination unit 107 It includes a counting unit 106 and a water collecting unit 112 composed of a plurality of sample containers attached with an RFID tag in which information of a measurement location is stored in order to collect water by water level, and the water surface determining unit 107, The number of normal detection signals is stored in advance to determine whether the drone 100 is adjacent to the surface so as to reduce the occurrence of errors due to changes in the height of the water, and the number of detection signals counted by the counting unit 106 is the number of normal detection signals. When the number of detection signals reaches the number of normal detection signals, it is determined to be adjacent to the water surface, and when the number of detection signals does not reach the normal detection signal number, it is determined that it is not adjacent to the water surface.

In addition, the server 200 calculates the amount of freshwater using a server communication unit 201 for communicating with the drone 100 and a water level value received from the drone 100 through the server communication unit 201. A water quality determination unit 203 for determining whether the water quality is normal by using the freshwater quantity calculation unit 202 for and the water quality value received from the drone 100 through the server communication unit 201, and each appeal location in advance. Among the stored manager information, a manager matching unit 204 for matching the call location measured by the drone 100 with the corresponding manager information, and a manager terminal 300 corresponding to manager information matched through the manager matching unit 204 ), it may be configured to include a determination information transmission unit 205 for providing the fresh water amount and the water quality state.

In addition, the manager terminal 300 inputs and generates manager communication unit 301 for communicating with the server 200 and manager information for transmission to the server 200 through the manager communication unit 301 A data storage unit 303 for storing the freshwater amount and the water quality status from the server 200 through the manager information unit 302 for, and the freshwater amount stored in the data storage unit 303 It is preferable to include a display unit 304 for showing the state of water and water quality.

As described above, according to the present invention, by using a water detection sensor attached to a drone flying unmanned, it is possible to measure an accurate water level by making it possible to hover at a position where the number of times water is detected reaches a preset number. Of course, it is possible to measure the water quality by water level, so there is an effect that can improve the accuracy of water quality management.

In other words, when measuring the water level or water quality by floating a hull on the water surface to measure the water quality of a reservoir, as in the prior art, it is difficult to accurately measure the water level because the hull floated on the surface is shaken as the wave height changes. In the invention, even if the wave height varies according to the wave, if the water detection sensor attached to the drone counts a certain number, it is determined that the drone is adjacent to the surface and hovered, so that not only can the accurate water level be grasped, but also the water quality by water level can be measured. There is an effect that can help in water quality management.

In addition, it is possible to collect water for each level of dissolved oxygen and microbial observation while the drone is hovering, so that it is possible to improve the ease of collection and measurement because the manager does not have to visit the point to collect water directly. Of course, it has the effect of eliminating the hassle of having to visit the manager in person.

In addition, since the drone can hover close to the water surface to measure the water quality, accurate measurement values can be provided even in areas where it is difficult for humans to enter, and there is an effect of smooth regional maintenance by using accurate measurement values. .

1 is a water quality measurement system using a drone according to an embodiment of the present invention,
2 is a drone of a water quality measurement system using a drone according to an embodiment of the present invention,
3 is a server of a water quality measurement system using a drone according to an embodiment of the present invention,
Figure 4 is a manager terminal of the water quality measurement system using a drone according to an embodiment of the present invention.

Hereinafter, a water quality measurement system using a drone according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a water quality measurement system using a drone according to an embodiment of the present invention, Figure 2 is a drone of a water quality measurement system using a drone according to an embodiment of the present invention, and Figure 3 is an embodiment of the present invention. Is a server of the water quality measurement system using a drone, and Figure 4 is a manager terminal of the water quality measurement system using a drone according to an embodiment of the present invention.

In adding reference numerals to the components of the drawings, the same components are to have the same reference numerals as possible even if they are displayed on different drawings, and a known function that is judged to unnecessarily obscure the subject matter of the present invention. And detailed description of the configuration will be omitted. Further, directional terms such as'top','bottom','front','back','front end','front','rear end' are used in connection with the orientation of the disclosed drawing(s). Since components of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes, but is not limited thereto.

A water quality measurement system using a drone according to a preferred embodiment of the present invention, as shown in FIG. 1, is a drone for generating a water level value and a water quality value by measuring the water level and water quality in a state adjacent to the surface of the lake ( 100), and a server 200 for calculating the amount of fresh water using the water level value and determining whether the water quality is normal using the water quality value, and receiving and storing the fresh water amount and the water quality state from the server 200 It may be configured to include a manager terminal 300 for display.

As shown in FIG. 2, the drone 100 includes a drone communication unit 101 for communicating with the server 200, an automatic flight unit 102 for automatically flying to a previously stored measurement position, An obstacle determination unit 103 for determining an obstacle on the water surface of the measurement location by photographing the measurement location with a camera, and a location for correcting the position of the drone 100 when there is an obstacle on the water surface of the measurement location A correction unit 104, a water detection unit 105 for detecting water and generating a detection signal after being positioned at the measurement position, a counting unit 106 for counting the detection signal, and the counted number of detection signals A sleep determination unit 107 for determining whether it is adjacent to the water surface by comparing the number of normal detection signals with a preset number of signals, and for descending according to a preset falling value when the sleep determination unit 107 determines that it is not adjacent to the water surface. The descent command unit 109 and the hovering command unit 108 for hovering when it is determined that the surface is adjacent to the water surface, and the hovering command unit 108 are hovered through the measurement position. A water level measurement unit 110 for measuring the water level, a water quality measurement unit 111 for measuring the water quality at the measurement location by hovering through the hovering command unit 108, and a water quality measurement unit 111 for collecting water at the measurement location. It may include a water collecting unit 112.

In addition, the drone 100 is for measuring the water level and water quality by hovering to the water surface at each of a plurality of preset measurement locations, and may have a floating body floating on the water and may be waterproofed.

The drone communication unit 101 may communicate with the server 200 using a wireless network such as Bluetooth or Wi-Fi to provide a water level value and a water quality value measured by the server 200.

The automatic flight unit 102 is instructed to automatically fly to the measurement location after extracting the current location from time to time using GPS or the like in order to locate the drone 100 at a preset measurement location. That is, it is preferable that the automatic flight unit 102 commands the drone 100 to fly at a preset measurement time.

The automatic flight unit 102 may set a plurality of measurement locations in order, and fly the drone 100 according to the order of the set measurement locations at the measurement time.

In this case, the measurement location is a location for measuring the water level and water quality, and multiple measurement locations may be set without being limited to one measurement location.

The obstacle determination unit 103 is located at the measurement position, photographs the water surface through a camera, and processes an image to determine whether there is an obstacle such as fallen leaves.

The obstacle determination unit 103 may correct the position of the drone 100 when it is determined that there is an obstacle in the photographed water surface.

On the other hand, when the obstacle determination unit 103 determines that there is no obstacle on the photographed water surface, the drone 100 is lowered.

The obstacle determination unit 103 determines whether there is an obstacle on the surface of the water to the measurement location, thereby making it difficult to accurately measure the water level and water quality at the measurement location since water cannot be detected through the water detection unit 105 later. As it can be resolved, the ease of measurement can be improved by determining obstacles with a camera.

When the obstacle determination unit 103 determines that there is an obstacle on the water surface, the position correction unit 104 corrects the position within a preset correction range to fly the drone 100.

It is preferable that the correction range is set to a certain range based on the measurement position.

The water detection unit 105 is preferably a water detection sensor for detecting water, and is preferably installed under the drone 100.

When the obstacle determination unit 103 determines that there is no obstacle on the water surface, the water detection unit 105 descends to detect water and generates a detection signal.

The detection signal is generated when the water detection unit 105 detects water.

At this time, when water is not detected by the water detection unit 105 due to wave height or the like, the drone 100 is lowered according to a preset descent value, and water is periodically sensed.

The counting unit 106 counts a detection signal generated by detecting water in the water detection unit 105.

The number of detection signals counted by the counting unit 106 is transmitted to the sleep determination unit 107.

The sleep determination unit 107 compares whether the number of sensing signals counted by the counting unit 106 is equal to the number of stored sensing signals stored in advance, and determines whether the drone 100 is adjacent to the sleep surface.

The sleep determination unit 107 determines that it is adjacent to the water surface when the counted number of detection signals reaches the number of pre-stored normal detection signals, and determines that it is not adjacent to the water surface when the number of normal detection signals has not been reached. .

Here, the surface determination unit 107 descends the drone 100 to be adjacent to the water surface when the counted detection signal number does not reach the normal detection signal number.

On the other hand, when the detection signal counted by the sleep determination unit 107 reaches the normal number of signals, it is determined that the drone 100 is adjacent to the water surface, and the drone 100 through the hovering command unit 108 ) To hover.

Since the sleep determination unit 107 and the counting unit 106 are configured, the drone 100 can be positioned so as to be adjacent to the water surface by comparing the number of counted detection signals with the preset number of normal detection signals. It is possible to measure the exact water level by reducing the occurrence of errors due to height change, and to improve the accuracy of water quality management by measuring the water quality by water level.

The descent command unit 109 descends according to a preset descent value so that the drone 100 is positioned adjacent to the water surface when the counted number of detection signals does not reach the normal detection signal number.

The hovering command unit 108 hovers the drone 100 by determining that the drone 100 is adjacent to the water surface when the counted number of detection signals reaches the normal detection signal number.

When the drone 100 is hovered through the hovering command unit 108, the water level measurement unit 110 measures the water level, and the water quality measurement unit 111 measures the water quality.

The water level measurement unit 110 may use a water level sensor or the like to measure the water level of the lake, and generates a water level value by measuring the water level by receiving a signal returned by irradiating to the bottom of the lake.

The water level measurement unit 110 may reduce an error by averaging a plurality of measured water level values by measuring a plurality of measurement locations.

The water level measurement unit 110 transmits the water level value to the server 200.

The water quality measurement unit 111 may use a water quality sensor or the like to measure the water quality of the lake, and when the drone 100 is hovered using this, it measures the water quality and generates a water quality value.

At this time, the water quality measurement unit 111 transmits the generated water quality value to the server 200.

The water collecting unit 112 is composed of a plurality of sample bins to collect water by water level in a state in which the drone 100 is hovered.

The water collecting unit 112 lowers the extracted sample container using the principle of a fixed pulley, puts it into water, and when water is contained, raises the sample container out of the water to collect water.

It is preferable that the sample container has an RFID tag that stores information on a measurement location where water is collected, and is not limited thereto and can be identified in various ways.

Thus, since the water collection unit 112 allows the drone 100 to collect water by level while the drone 100 is hovered, the administrator does not have to visit directly, thus reducing the hassle of the administrator, as well as collecting and measuring. Ease of use can be improved.

The server 200, as shown in FIG. 3, calculates the amount of fresh water through a server communication unit 201 for communicating with the drone 100 and a water level value received through the server communication unit 201. A water quality determination unit 203 for determining a water quality condition based on a water quality value received through the server communication unit 201, and the drone 100 from among manager information previously stored for each measurement location. It may include a manager matching unit 204 for matching manager information corresponding to the located measurement location, and a determination information transmission unit 205 for providing the fresh water quantity and the water quality status.

The server communication unit 201 may communicate with the drone 100 using a wireless network such as Bluetooth and Wi-Fi.

The freshwater amount calculation unit 202 receives the water level value for each measurement location received from the server communication unit 201 and calculates the freshwater amount.

The freshwater amount calculation unit 202 calculates the freshwater amount of the lake by using the water level value for each measurement location and the area of the lake previously stored.

The water quality determination unit 203 determines whether a water quality state is normal or abnormal based on the water quality value of the measurement location received from the server communication unit 201.

For example, in the water quality determination unit 203, the dissolved oxygen (DO) concentration is used to indicate the water pollution level, so when the water quality value is the dissolved oxygen concentration value, the closer the dissolved oxygen (DO) concentration approaches the saturation state. Since the water quality state can be determined as normal, when the water quality value exceeds a certain value, the water quality state can be determined as normal.

The manager matching unit 204 includes the drone 100 from among manager information previously stored for each appeal location in order to provide the freshwater amount calculated by the freshwater amount calculation unit 202 and the water quality state determined by the water quality determination unit 203. Manager information corresponding to the location of the appeal is matched.

The determination information transmission unit 205 provides the freshwater amount and the water quality status to the manager terminal 300 corresponding to the manager information matched by the manager matching unit 204.

The manager terminal 300, as shown in FIG. 4, for transmitting to the server 200 through the manager communication unit 301 for communication with the server 200, and the manager communication unit 301 A manager information unit 302 for inputting and generating manager information, a data storage unit 303 for storing freshwater quantity and water quality status from the server 200 through the manager communication unit 301, and the data storage unit ( It may include a display unit 304 for displaying the amount of fresh water stored in 303 and a state of water quality.

The manager communication unit 301 communicates with the server 200 to receive the fresh water amount and the water quality at the measurement location.

The manager information unit 302 inputs and generates manager information for transmission to the server 200 through the manager communication unit 301.

It is preferable that the manager information includes the manager's name, contact information, and managed call location.

The data storage unit 303 stores the fresh water amount and the water quality state of the appeal received from the manager communication unit 301 and displays the data on the display unit 304.

The display unit 304 displays the amount of fresh water stored by the data storage unit 303 and the state of the water quality.

Accordingly, the manager terminal 300 can smoothly perform regional maintenance by providing the appropriate manager with an accurate amount of fresh water and water quality.

By using the water quality measurement system using the drone, the drone is hovered on the surface according to a number of pre-set measurement locations in the lake, and then the water level value and the water quality value are measured to measure the exact amount of freshwater and water quality of the lake. There is.

In addition, as in the prior art, if the hull is floated to measure the water level or water quality, the hull shakes according to the wave height, making it difficult to accurately measure.The water detection sensor attached to the drone counts a certain number and determines that it is adjacent to the water surface. You will be able to help with management.

In addition, since drones can measure water quality, accurate measurements can be provided even in areas where human access is difficult.

Embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, if these improvements and changes are apparent to those of ordinary skill in the art, they will fall within the scope of the present invention.

100: drone 101: drone communication department
102: automatic flight unit 103: obstacle determination unit
104: location correction department 105: paint detection department
106: counting unit 107: sleep determination unit
108: hovering command 109: descending command
110: water level measurement unit 111: water quality measurement unit
112: water collecting unit 200: server
201: Server Communication Department 202: Freshwater Volume Calculation Department
203: water quality judgment unit 204: manager matching unit
205: judgment information transmission unit 300: manager terminal
301: Manager Communication Department 302: Manager Information Department
303: data storage unit 304: display unit

Claims (3)

A drone 100 for generating a water level value and a water quality value by automatically flying to a preset measurement location, a server 200 for receiving the water level value and water quality value from the drone 100, and the server 200 In the water quality measurement system using a drone comprising a manager terminal 300 for receiving the fresh water amount and the water quality status from,
The drone 100 includes an obstacle determination unit 103 for determining whether there is an obstacle on the surface of the water surface to the measurement position after photographing through a camera and being positioned at the measurement position, and the obstacle determination unit 103 In the case of determining an obstacle at sleep, the number of detection signals counted by counting the detection signals generated by the position correction unit 104 and the water detection unit 105 for flying the drone 100 by correcting the position within a preset correction range It includes a counting unit 106 for transmitting to the determination unit 107, and a water collecting unit 112 consisting of a plurality of sample containers to which an RFID tag is attached in which information of a measurement location is stored in order to collect water by water level,
The sleep determination unit 107 stores the number of normal detection signals in advance in order to determine whether the drone 100 is adjacent to the water surface so as to reduce the occurrence of errors due to changes in the height of the water surface, and in the counting unit 106 The number of detection signals counted is compared to the number of normal detection signals, and when the number of detection signals reaches the number of normal detection signals, it is determined that it is adjacent to the water surface, and when the number of normal detection signals is not reached, it is determined that it is not adjacent to the water surface. Water quality measurement system using a drone to judge.
The method according to claim 1,
The server 200 includes a server communication unit 201 for communicating with the drone 100, and a freshwater amount for calculating the amount of fresh water using the water level value received from the drone 100 through the server communication unit 201. A water quality determination unit 203 for determining whether the water quality is normal using the water quality value received from the drone 100 through the calculation unit 202 and the server communication unit 201, and a manager previously stored for each appeal location Among the information, a manager matching unit 204 for matching the call location measured by the drone 100 with the corresponding manager information, and the manager terminal 300 corresponding to the manager information matched through the manager matching unit 204 A water quality measurement system using a drone comprising a determination information transmission unit (205) for providing the amount of fresh water and the water quality.
The method according to claim 2,
The manager terminal 300 includes a manager communication unit 301 for communicating with the server 200, and a manager for inputting and generating manager information for transmission to the server 200 through the manager communication unit 301 A data storage unit 303 for storing the freshwater quantity and the water quality status from the server 200 through the information unit 302 and the manager communication unit 301, and the freshwater quantity and water quality stored in the data storage unit 303 A water quality measurement system using a drone comprising a display unit 304 for showing the state.

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