KR20120052153A - Method and system for managing water using mobile sensing unit - Google Patents

Abstract

PURPOSE: A water quality management system and method thereof using mobile water quality measurement unit based on IP-USN(Internet Protocol-Ubiquitous Sensor Network) are provided to manage water quality based on measurement information by automatically acquiring the measurement information through multiple categories water quality measurement sensors. CONSTITUTION: A water quality measurement unit acquires measurement information for specific water measurement categories through multiple water quality measurement sensors(S310). A central processing unit receives the measurement information for the measurement categories by using wireless communication(S320). The central processing unit analyzes the specific water quality states based on the measurement information for the measurement categories(S330). The central processing unit transmits the water quality information to a particular server(S340).

Description

Water quality management method and water quality management system using Ip-usn-based mobile water quality measurement unit {METHOD AND SYSTEM FOR MANAGING WATER USING MOBILE SENSING UNIT}

The present invention relates to a method for managing water quality using measurement results of an IP-USN-based mobile water quality measurement unit.

As the population growth and industrial development accelerate, the environmental and environmental problems are rapidly becoming a social issue. In particular, since water pollution threatens the health of the human body in relation to drinking water use, more thorough management is required.

Conventionally, in order to minimize or prevent water pollution, most water quality was measured and recorded by periodic automatic withdrawal and manual sampling methods.

However, if the management is conducted in this way, it is difficult to accurately measure the water pollution level because errors occur between the measurement point and the measurement point and the measurement point, and time gap occurs until the measurement result is obtained after sampling in the field. There is a problem that continuous and efficient management is virtually difficult to achieve.

Therefore, in recent years, there is a need for an integrated water quality management system that can secure water quality measurement results in real time and efficiently manage water quality by comprehensively judging the entire measurement data of water systems at the same time.

To build an effective water quality management system, IT (Environmental Technology) technology for real-time automatic water quality analysis and IT (Information Technology) for the provision of ubiquitous environment (anytime, anywhere access to the knowledge and services available) Through the convergence of information technology, the development of a technology that can provide environment awareness information and knowledge content to users of systems by collecting, storing, processing and integrating environmental information in real time from multiple sensors in a specific area or space. It is required.

An object of the present invention is to provide a water quality management method and water quality management system that can efficiently manage the water quality through the IP-USN-based mobile water quality measurement unit.

An object of the present invention is to automatically obtain the measurement information for a plurality of measurement items of a specific water through the multi-item water quality measurement sensor of the IP-USN-based mobile water quality measurement unit, water quality management method and water quality management system based on the obtained measurement information To provide.

In order to achieve the above object, the present invention provides a water quality measurement unit including a multi-item water quality measurement sensor having a plurality of water quality measurement sensors, and a floating body having the multi-item water quality measurement sensor installed therein, a central processing unit, and a web server. A water quality management method of a management system, comprising: obtaining, by a water quality measuring unit, measurement information on a plurality of measurement items of a specific water through the multi-item water quality measurement sensor; Receiving, by a central processing unit, measurement information about the plurality of measurement items from the water quality measurement unit; And a central processing unit analyzing the water quality state of the specific water based on the received measurement information on the plurality of measurement items.

In order to achieve the above object, the present invention includes a multi-item water quality measurement sensor having a plurality of water quality measurement sensors, and a floating body provided with the multi-item water quality measurement sensor, and measures a plurality of specific water through the multi-item water quality measurement sensor. A water quality measuring unit obtaining measurement information about the item; And a central processor configured to receive measurement information on the plurality of measurement items from the water quality measurement unit using wireless communication, and analyze the water quality state of the specific water based on the received measurement information on the plurality of measurement items. It provides a water quality management system using a mobile water quality measurement unit comprising.

Water quality management system and water quality management method according to an embodiment of the present invention can efficiently manage the water quality through the IP-USN-based mobile water quality measurement unit.

In addition, according to an embodiment of the present invention, the acquisition of the measurement information for a plurality of items of a specific water (ET) through the convergence of environmental technology (ET) and information technology (IT), that is, a multi-item water quality measurement sensor (ET), By monitoring the water quality by transmitting the measured information through wireless communication in real time, it collects, stores, processes, and integrates environmental information from multiple sensors in a specific area or space in real time to provide situation awareness information and knowledge contents to system related users. It is possible to build an integrated water quality management system that can provide efficient water quality management, and switching to IP-USN-based data transmission / reception method can reduce the cost required for data transmission and reception, and add and move sensors. You can get more free advantages.

In addition, in one embodiment of the present invention by designing the floating body to control the direction of the floating body can be produced enough power even if the solar contact plate is installed only in a specific direction.

In addition, in one embodiment of the present invention by attaching the sensor directly to the bottom of the floating body, and designed so that the sensor can move in the opposite direction of the external force can measure the water quality without the risk of damage to the sensor even in a low water depth.

In addition, in one embodiment of the present invention by installing a water storage unit at the bottom of the floating body to easily carry the floating body at the same time to increase the weight when measuring the water quality to ensure stability.

In addition, in an embodiment of the present invention, the auxiliary buoy is installed inside the floating body, and the auxiliary buoy is separated from the floating body when the floating body so that the user can easily find the submerged floating body through the auxiliary buoy.

1 is a block diagram of a water quality management system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating an example in which the water quality measuring unit of FIG. 1 is installed.
3 is a flowchart illustrating a water quality management method associated with an embodiment of the present invention.
4 is a diagram illustrating an example of a multi-item water quality measurement sensor of the water quality measurement unit illustrated in FIG. 2.
5 is a state diagram as seen from the rear of the floating body provided with an antenna unit according to another embodiment of the present invention.
6 is a side view of a floating body provided with an antenna unit according to another embodiment of the present invention.
Figure 7 is a schematic diagram showing a state in which the antenna unit of the water quality measurement unit according to another embodiment of the present invention is separated from the floating body.
8 is a plan view of a floating body according to another embodiment of the present invention.
9 is an operating state diagram in which the multi-item water quality measurement sensor coupled to the rotating shaft according to another embodiment of the present invention is rotated.
10 is a schematic view showing a water reservoir according to another embodiment of the present invention.

Hereinafter, a water quality management method using a water quality management system using an IP-USN-based mobile water quality measurement unit according to an embodiment of the present invention will be described with reference to the accompanying drawings.

IP-USN (Inner Protocol-Ubiquitous Sensor Network) is a technology that combines the wireless sensor network with the existing IP infrastructure of the high-speed Internet, and guarantees a wide range of scalability and mobility by linking the existing closed sensor network with Internet service. Through this, it is possible to provide a variety of services by constructing a network that can collect the desired information at a desired place through a network, and is an IT technology that can be widely used for integrated management of environmental information, weather information, and object information in the future.

The concept of data transmission / reception of the existing water quality management system was a method using a wired network or an expensive wireless data service. However, by converting it to an IP-USN-based data transmission / reception method, it is possible to reduce the cost required for data transmission and reception, and to add a sensor. And it is possible to secure the advantages of more free movement.

In the present specification, the mobile water quality measuring unit refers to a water quality measuring device that can be easily installed in another place according to convenience, rather than a fixed water quality measuring device. For example, the moving water quality measurement unit may include a sensor installed to float in a liquid (eg, water) to measure a specific measurement item of the liquid.

1 is a block diagram of a water quality management system according to an embodiment of the present invention. The illustrated water quality management system 100 may include a water quality measuring unit 110, a central processing unit 120, a specific server 130, and the like. According to the embodiment of the invention, some of the configurations may be integrated, and some may be subdivided. In addition, some configurations may be omitted, and some configurations may be added. The water quality measuring unit 110, the central processing unit 120, and the specific server 130 may perform data communication with each other using a specific communication means.

An example of a method using the specific communication means is a method using IP-USN based wireless communication.

 Wireless communication refers to the communication of information such as signals, codes, video, and audio through radio waves, rather than through wires. Wireless communication technologies include wireless networks, wireless Internet, wireless LAN, mobile communication, and near field communication. The wireless communication may include wireless communication based on a Ubiquitous Sensor Network (USN) technology. USN refers to a network of sensors. USN technology can be composed of a network using wired and wireless networks centered on electronic tags, readers, middleware, and application service platforms. In particular, 900 MHz vs. RFID technology provides a relatively long recognition distance of up to 10 meters using low-cost passive tags without power, which is a key technology that will be widely used in logistics, distribution, medicine management, and military. The IP-USN-based wireless communication method uses the USN technology to network sensors and combine the data collected through the network with the IP infrastructure of the high-speed Internet to collect the desired information at the desired place to provide various services. It is.

The water quality measuring unit 110 may be installed to be movable. For example, it can be installed as a buoy. That is, the water quality measuring unit 110 may be installed to float in the water.

Meanwhile, the central processing unit 120 may also be implemented as a mobile type in the same manner as the water quality measuring unit 110.

2 shows an example of the water quality measuring unit 110 installed as a sub-label. The water quality measuring unit 110 may be installed to float in water by being connected to a pier installed in a specific river. The water quality measurement unit 110 may include a multi-item water quality measurement sensor 111 having a plurality of water quality measurement sensors and a floating body 112 on which the multi-item water quality measurement sensor 111 is mounted. In the present specification, the floating body refers to an object floating in a liquid. The multi-item water quality measurement sensor 111 may be mounted to the floating body 112 so that a part of the water quality measuring sensor 111 is submerged under the water surface. In addition, the water quality measuring unit 110 may move through the body 112, but by installing an auxiliary body to make the width of the movement of the water quality measuring unit 110 as small as possible, it is also possible to measure the water quality of a particular point.

Conventionally, the sensor was used by hanging on a string without directly attaching to a floating body. This method is effective at relatively deep depths (eg, 2 to 3 meters) but inefficient at low depths because the sensor must be submerged sufficiently. On the other hand, in one embodiment of the present invention by allowing the sensor to be attached directly to the floating body can be used not only in the deep depth (for example four rivers) but also in the shallow depth (for example, Jicheon).

The multi-item water quality measurement sensor 111 may be a sensor in which a plurality of measurement sensors are inserted and integrated, respectively, or may be a sensor capable of measuring a plurality of items as one sensor.

Hereinafter, the former will be described as an example of a multi-item water quality measurement sensor. A method of measuring a plurality of measurement items through the multi-item water quality measurement sensor 111 will be described later.

In addition, in addition to the multi-item water quality measurement sensor 111, the floating body 112 may be further equipped with various devices. The mounted devices can increase the efficiency of water quality management.

For example, the float 112 may be further equipped with a photovoltaic unit 113 and a wind power generator. The solar power generation unit 113 and the wind power generation unit may receive power from the sun or supply power to the water quality measurement unit 110 using wind power. The solar power generating unit 113 may be implemented in the form of a solar cell. The solar cell converts the energy of sunlight into electrical energy and generates electricity using two types of semiconductors, a P-type semiconductor and an N-type semiconductor. When light shines on a solar cell, electrons and holes are generated inside. The generated charges move to the P and N poles, and a potential difference is generated between the P pole and the N pole by this phenomenon. At this time, when a load is connected to the solar cell, current flows. Therefore, the water quality measurement unit 110 may be implemented even when a separate wire for power supply is not connected to the power supply through the solar power generation unit 113.

In addition, the transmission 112 may be further equipped with a transmission module 114. The transmission module 114 may refer to a device for transmitting measurement information acquired through the multi-item water quality measurement sensor 111 to a place other than a measurement place such as the central processing unit 120 and the specific server 130. For example, the transmission module 114 may be implemented in the form of a wireless communication module (eg, CDMA module, Zigbee module) that enables wireless communication.

In addition, the floating unit 112 may be further equipped with a location information module 115. The location information module 115 is a module for checking or obtaining the location of the water quality measuring unit 110. One example is the Global Position System (GPS) module. The GPS module receives position information from a plurality of satellites. Here, the location information may include coordinate information indicated by latitude and longitude. For example, the GPS module can measure the exact time and distance from three or more satellites and accurately calculate the current position by triangulating three different distances. A method of obtaining distance and time information from three satellites and correcting the error with one satellite may be used. In particular, the GPS module can obtain not only the location of latitude, longitude, and altitude but also accurate time together with three-dimensional speed information from the location information received from the satellite. By installing the location information module 115, the location information of the water quality measurement unit 110 may be transmitted to a higher processing organization such as a central processing unit 120 or an external server (not shown). Therefore, the central processing unit 120, the upper processing institution such as an external server can more accurately check the installation position of the water quality measuring unit 110, and prevent loss due to loss of the water quality measuring unit 110, and the like. Can be. In another embodiment, the location information module 115 may employ a module (eg, a module used in an airplane) that can be tracked even when the power supply is cut off by flooding.

In addition, although not shown, the floating body 112 may further include a data collecting device (not shown). The data collection device (not shown) may collect real-time measurement information obtained through the multi-item water quality measurement sensor 111, and may convert the collected measurement information into data suitable for a communication environment.

The floating body 112 may further include an environmental information collecting device (not shown). The environmental information collecting device (not shown) collects information on the external environment and analyzes the environmental information to determine whether the sensor may be damaged or flooded. The environmental information collecting device (not shown) transmits a danger signal to the user when the sensor may be damaged or flooded. For example, the environmental information collecting device (not shown) acquires weather information of the area where the sensor is located and transmits a danger signal to the user when the weather information exceeds a predetermined threshold (for example, when the rainfall per hour is 50 mm or more). do. As another example, the environmental information collecting device (not shown) determines the temperature or humidity inside the floating body, and transmits a danger signal to the user when the temperature inside the floating body exceeds the threshold.

In one embodiment of the present invention to determine the risk of the sensor through the environmental information, and to notify the user to prevent damage or flooding of the sensor.

The floating body 112 may be designed to be fixedly mounted to the various devices (eg, multi-item water quality measurement sensor, solar power generation unit, transmission module, location information module, etc.). In addition, the floating body 112 may be designed in a waterproof structure to protect the various devices. In addition, the buoy 112 may be implemented with a solid material to prevent damage that may occur by collision with the bottom surface or structure of the river. For example, the body 112 may be implemented with a fiber reinforced plastic (FRP) material. Fiber-reinforced plastics are materials that combine aromatic nylon fibers such as glass fibers, carbon fibers and Kevlar with thermosetting resins such as unsaturated polyesters and epoxy resins. This has the advantage of being stronger than iron, lighter than aluminum, and easy to process without rust. In addition, the fiber-reinforced plastic is light, excellent in durability, impact resistance, wear resistance, and the like, and is characterized by being not rusted, not deformed by heat, and easy to process.

According to one embodiment of the present invention, since the various devices (eg, multi-item water quality measurement sensor, solar power generation unit, transmission module, location information module, etc.) are mounted on the floating body 112, the measurement items of water are measured. It can provide convenience of installation.

On the other hand, the measurement item measured by the multi-item water quality sensor 111 may include a specific component contained in a specific water, the characteristic state of the specific water (for example, water temperature, pH, electrical conductivity, turbidity, dissolved Oxygen, chlorophyll-a, nitrate nitrogen, ammonia nitrogen, and the like).

The water quality measuring unit 110 may obtain specific component information by measuring the content of a specific component included in the specific water.

In the present specification, the content may include both absolute and relative amounts. The absolute amount may refer to the amount of the corresponding component (eg, weight, volume) calculated regardless of which component, and the relative amount may refer to the amount (eg, concentration) of the component for a component. The content may be specific ingredient information. The specific component information may be content information on a plurality of components. In addition, the multi-item water quality sensor 111 may measure the presence or absence of specific components included in specific water through qualitative analysis. Qualitative analysis refers to an analysis for detecting the presence or absence of a specific component. Therefore, in the present specification, the measurement information of a specific component may include information on how much a specific component is included (obtained through quantitative analysis) and information on whether or not a specific component exists (obtained through qualitative analysis). Can be.

In addition, although not illustrated, the water quality measuring unit 110 may further include a data logger and a VPN G / W (Gate Way) according to an exemplary embodiment. A data logger is a device that converts analog input into digital numbers and automatically records them. In addition, a virtual private network (VPN) refers to a virtual private network in which a public network, such as the Internet, can be used as if a private network is set up as a private line.

The central processing unit 120 may receive measurement information about a specific measurement item of a specific water obtained by the water quality measurement unit 110 through a specific communication means (for example, USN wireless communication). In addition, the central processing unit 120 may share the analyzed water quality state with other servers. For example, the central processing unit 120 may transmit the water quality state information about the analyzed specific water to a specific server 130 through a specific communication network (for example, an IP-based wired / wireless internet network or a wireless communication network). For example, when the specific server 130 is implemented in the form of a web server, the web server may control the water quality state information to be exposed to a specific web site associated with the web server.

In addition, the specific server 130 may be a server of a specific research institute, a server of a water treatment institution, or the like. In this case, the specific server 130 may receive the water quality state information transmitted from the central processing unit 120 and use it for various purposes according to the aspect of the specific server 130.

3 is a flowchart illustrating a water quality management method according to an embodiment of the present invention. The multi-item water quality measurement sensor 111 provided in the water quality measurement unit 110 to be described below means that the automatic measurement function is provided. Automatic measurement means that even if a specific administrator does not visit the site directly, the measurement information for a specific measurement item can be obtained only with the installed device. That means telemetry.

The water quality measurement unit 110 may acquire measurement information about a plurality of measurement items of a specific water through the provided multi-item water quality measurement sensor 111 (S310).

Hereinafter, a method of obtaining measurement information about a plurality of measurement items through the multi-item water quality measurement sensor 111 will be described.

4 is a diagram illustrating an example of the multi-item water quality measurement sensor 111.

As shown, the multi-item water quality measurement sensor 111 may include a plurality of sensors such as a temperature sensor, an O 2 sensor, a pH sensor, a turbidity sensor, a pressure sensor, and the like. Measurement information about a plurality of measurement items (eg, water temperature, pH, electrical conductivity, turbidity, dissolved oxygen, chlorophyll-a, nitrate nitrogen, ammonia nitrogen, etc.) may be obtained through the plurality of sensors.

For example, the water temperature can be measured via a temperature sensor. The measurement can be made by a semiconductor sensor inserted inside the temperature measuring sensor. In addition, dissolved oxygen can be measured through the O2 sensor. The measurement of dissolved oxygen can use the diaphragm electrode method. In the diaphragm electrode method, dissolved oxygen in a sample passes through the diaphragm to cause oxidation and reduction reactions on the surface of the electrode. At this time, a current flows in proportion to the concentration of oxygen. The amount of dissolved oxygen is measured from the current amount. It is suitable for samples containing oxidizing substances or colored samples, and can be useful for measuring dissolved oxygen in wastewater where Winkler-Sodium azide variation cannot be used. Quantification range is 0.5 mg / L. When a certain voltage is applied to the platinum electrode, oxygen passes through the membrane through diffusion and is then reduced at the platinum electrode (cathode). At this time, oxidation occurs in Ag / AgCl (anode). The magnitude of the current flowing during this process is proportional to the diffusion rate of oxygen and DO is measured from this amount of current. In addition, pH may be measured through a pH sensor. pH means the value which shows a hydrogen ion concentration as the common logarithm of the inverse. The pH is usually measured using a pH meter of glass and reference electrodes, which can be measured using the difference in electromotive force generated between the two electrodes. In addition, the electrical conductivity can be measured using the 4-electrode measuring cell method. The four-electrode measuring cell may mean two current electrodes and two voltage electrodes. The four-electrode measuring cell method means that the amplifier circuit is operated with a four-electrode measuring cell (two current electrodes and two voltage electrodes) and the conductivity of the measured liquid is determined by current and voltage measurements. Turbidity can be measured via a turbidity sensor. Turbidity can be measured using mining methods. Light scattering is a scattering phenomenon that occurs when there is an impurity in the transparent medium or when there is a partial change in refractive index. This method is used to measure the content of a specific component. Using this, suspended particles which are not dissolved in water can be measured.

The central processing unit 120 may receive measurement information about a specific measurement item of a specific water from the water quality measurement unit 110 through a specific communication means (for example, USN wireless communication) (S320). The central processing unit 120 may receive measurement information about a specific measurement item of the obtained water in real time. Receiving in real time means immediately receiving the measurement information without unnecessary delay.

In addition, the central processing unit 120 may transmit the water quality state information to the specific server 130 through a specific communication network (for example, an IP-based wired / wireless internet network or a wireless communication network) (S340). For example, the central processing unit 120 may transmit the water quality state information to a specific web server through the Internet network. In this case, the web server may control the water quality state information to be exposed to a specific web site associated with the web server. For example, when a web server receives a request for water quality information from a user, the web server may expose the water quality information to a specific web site. In addition, the web server may control to expose the water quality information to a specific web site at predetermined intervals.

In addition, when receiving the request for the water quality information from a specific terminal (not shown) connected through a specific application, the central processing unit 120 may provide the water quality information to the specific terminal. The specific application may include a dedicated program for communication between the central processing unit 120 and the specific terminal. For example, a particular application may include a smartphone dedicated communication program.

In addition, the specific terminal is a terminal device capable of wired or wireless communication. The specific terminal may be divided into a mobile terminal and a stationary terminal according to whether the mobile terminal is mobile or not. An example of a fixed terminal is a desktop computer. In addition, the mobile terminal may be divided into a portable terminal (or a handheld terminal) and a vehicle mount terminal according to whether the user can directly carry it. For example, the mobile terminal may be a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, an MP3 player, an e-book terminal. , Template PC, and so on.

According to the water quality management method and water quality management system related to an embodiment of the present invention described above, the measurement information for a plurality of items of a specific water through the multi-item water quality measurement sensor 111 installed as a sub-mark at a specific point of the specific water. It is possible to provide the convenience of installation and the efficiency of water quality management to analyze the water quality state by acquiring and receiving the obtained measurement information in real time through wireless communication.

5 is a state view as seen from the rear of the floating body with an antenna unit according to another embodiment of the present invention, Figure 6 is a side view of the floating body with an antenna unit according to another embodiment of the present invention, Figure 7 is the present invention 8 is a schematic view showing a state in which an antenna unit of the water quality measuring unit is separated from the floating body, FIG. 8 is a plan view of the floating body according to another embodiment of the present invention, and FIG. 9 is a rotation shaft according to another embodiment of the present invention. FIG. 10 is a schematic view showing a water storage unit according to another embodiment of the present invention. FIG.

Here, the water quality measurement unit 200 according to another embodiment of the present invention is an anchor portion 210, an auxiliary portion 220, a floating body 230, a cover portion 240, an antenna unit 250 and a multi-item water quality measurement sensor 260 is included.

This, the anchor portion 210 is fixed to the bottom of the water is fixed to limit the moving range of the floating body floating in the water.

In addition, an auxiliary part 220 is provided between the anchor part 210 and the floating body 230, and the auxiliary part 220 is configured to determine the position of the anchor part 210.

Here, the first detachable part 221 is formed on one side of the auxiliary part 220, the second detachable part 222 is formed on the other side, and one end of the first connection line 211 is coupled to the anchor part 210. And the other end is coupled to the first detachable portion 221.

Meanwhile, one end of the second connection line 212 is coupled to the second detachable portion 222 and the other end is coupled to the floating body 230.

The auxiliary part 220 has the first detachable part 221 and the second detachable part 222 formed thereon, so that the first connection line 211 and the second connection line 212 are the first removable part ( 221 and the second removable portion 222 may be selectively coupled.

For example, hook portions 213 are formed at ends of the first connection line 211 and the second connection line 212 to selectively couple the first detachable part 221 and the second detachable part 222. This may be done.

The detachment of the auxiliary buoy 220 to the first connection line 211 and the second connection line 212 is that the auxiliary buoy 220 in the case of moving the floating body 230 to another water quality measurement area This is to facilitate the separation of the floating body 230.

In addition, in the case where the floating body 230 in which the water quality is measured in another region is placed in its original position, the auxiliary portion 220 detects the position of the anchor portion 210 and the floating portion 230 in the auxiliary portion 220. Can be combined easily.

In addition, during maintenance of the floating body 230, the floating body 230 can be easily separated from the auxiliary buoy 220.

On the other hand, the floating body 230 is provided with a system box 231 and the battery unit 232.

The system box 231 transmits the measured water quality measurement data for the specific water transmitted from the multi-item water quality measurement sensor 260 to the antenna unit 250 and transmits the measured information to the antenna unit 250. The data transmitted from the box 231 is transmitted to the central processing unit 120 (see FIG. 1).

The system box 231 controls the power supplied to the floating body 230 in addition to collecting data information and transmitting the collected data information, so that power is supplied to the antenna unit 250.

On the other hand, the floating body 230 is selectively coupled with the cover portion 240 by the fastening member 233. The upper surface of the cover part 240 is provided with a photovoltaic power generation unit 241 to convert the energy of sunlight into electrical energy to supply electrical energy to the battery unit 232.

The battery unit 232 is configured to charge the electric energy supplied from the photovoltaic unit 241 and controls the electric energy supplied to the various devices by the system box 231.

On the other hand, the cover portion 240 is coupled to the upper portion of the floating body 230 to form an insertion space 246, the antenna portion 250 is fixed to the insertion space 246.

The cover portion 240 forms a pair of inclined surfaces opposed to each other to allow the solar power generation unit 241 to receive light of the sun smoothly.

In this case, an antenna accommodating space 242 is formed in the upper portion of the cover portion 240 so that the antenna 253 provided in the antenna portion 250 is positioned above the cover portion 240. This is for the smooth communication between the antenna unit 250 and the central processing unit 120 (see FIG. 1).

In addition, the cover part 240 is provided with a heat insulator to protect electronic equipment such as the system box 231 and the battery part 232 provided inside the floating body 230 from external heat.

For example, the cover part 240 is formed on both sides of the coating layer 243 and the inner surface of the coating layer 243 is formed so that the fiber-reinforced plastic layer 244 and the heat insulating material layer 245 are alternately repeated. The heat is blocked to be transferred to the inside of the floating body 230.

On the other hand, the lower end of the antenna unit 250 is formed with a stepped portion 251 and between the stepped portion 251 and the floating body 230 is provided with a close contact member 252 and the upper surface of the close contact member 252 and The lower surface is made to be in close contact with the stepped portion 251 and the floating body 230, respectively.

The close contact member 252 is loosely coupled between the antenna unit 250 and the floating unit 230 so that the antenna unit 250 is fixed from the floating unit 230. In this case, the close contact member 252 is loosely coupled to the antenna unit 250 when the submerged body 230 is flooded due to a flood or an external environment, and the antenna unit 250 is separated from the submerged body 230 to rise above the water surface. To make it possible.

In this case, the user may check the submerged position of the floating body 230 through the antenna unit 250 separated from the floating body 230 and raised on the water surface when the floating body 230 is submerged.

In other words, when the antenna unit 250 is separated from the floating unit 230 and lifted above the water surface, the antenna unit 250 and the floating unit 230 are connected to the communication line 254 to inundate the floating unit 230. You can check the location.

In addition, the antenna unit 250 is provided with a location information module inside the antenna unit 250 so that the antenna unit 250 is the antenna unit 250 to the central processing unit 120 (see FIG. 1) even when the floating body 230 is flooded. By transmitting the position information of the user can easily determine the position of the antenna unit 250.

On the other hand, the floating body 230 is provided with a leak detection sensor 234 to detect whether the leaking of the floating body 230, the leak detection sensor 234 when the leakage of the floating body 230 is the system box 231 By notifying the occurrence of the leakage to the central processing unit 120 (see Fig. 1) to inform whether the leakage of the floating body 230.

Thus, when the leak occurs in the floating body 230, the user can quickly determine the cause of the leak and can be repaired.

Here, the system box 231 and the battery unit 232 is preferably formed of a waterproof coating layer so that there is no problem in operation even if a leak occurs.

The leak detection sensor 234 may be installed at various positions such as an upper surface of the floating body 230 or an inner surface of the floating body 230.

On the other hand, the multi-item water quality measurement sensor 260 is installed at the rear of the floating body 230 is made to rotate by the rotation shaft 261. Here, the multi-item water quality sensor 260 is free to rotate about the rotation shaft 261 according to the flow of water.

The multi-item water quality sensor 260 is configured to rotate up and down about the rotation axis 261, so that when the foreign matter is caught in the multi-item water quality sensor 260, the multi-item water quality sensor 260 is By rotating toward the water surface, foreign matters can be easily removed from the multi-item water quality measurement sensor 260.

In addition, in the case of the dry season, even when the surface is lowered or the rock hits the multi-item water quality sensor 260, the multi-item water quality sensor 260 is rotated about the rotation axis 261. It is possible to prevent the multi-item water quality measurement sensor 260 from being damaged.

In addition, the multi-item water quality measurement sensor 260 is positioned between the first protrusion 235 and the second protrusion 236 so that the multi-item water quality measurement sensor 260 is protected from the outside.

The multi-item water quality sensor 260 has the same configuration and function as the multi-item water quality sensor 111 (see FIG. 4) according to an embodiment, and a detailed description thereof will be omitted.

Meanwhile, a water reservoir 237 is formed in the first protrusion 235 and the second protrusion 236 so that water is filled in the water reservoir 237 to prevent shaking of the floating body 230.

In the first and second protrusions 235 and 236, the inflow hole 238 and the discharge hole 239 are formed in communication with the water storage tank 237, and the flowing water flows into the inflow hole 238. After being introduced, the water is filled in the water storage tank 237 and then discharged to the discharge hole 239.

As such, as the water storage tank 237 is formed in the floating body 230, the direction of the floating body 230 may be maintained even in a location where the water flow is weak, so that the light receiving unit 241 may easily receive light. In addition, by increasing the weight of the floating body 230, the stability of the floating body 230 can be maintained to prevent the floating body 230 from being shaken or flipped from waves or external impacts.

On the other hand, the water reservoir 237 is formed so as to communicate with the inlet hole 238 and the discharge hole 239, the floating body 230 can maintain the directionality according to the water flow (water flow) and the floating body 230 When taken out of the water, the water filled in the water reservoir 237 is discharged to the outside through the discharge hole 239 can easily move the floating body 230.

Conventional floating body is installed on the lower surface of the weight in order to give the center of gravity at the bottom of the floating body. However, since the floating body 230 according to an embodiment of the present invention can maintain a sufficient balance of the floating body 230 only by the water storage tank 247, an accessory such as a weight can be added to the bottom surface of the floating body 230. There is no need, and thereby the installation of the floating body 230 can be simplified and the cost according to the accessory can be reduced.

In addition, according to an embodiment of the present invention, the above-described method may be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) .

The above-described water quality management system and the water quality management method are not limited to the configuration and method of the above-described embodiments, but the embodiments are all or part of each of the embodiments so that various modifications can be made. It may be configured in combination.

Claims (14)

In the water quality management method of a water quality management system including a multi-item water quality measurement sensor having a plurality of water quality measurement sensors, and a floating body in which the multi-item water quality measurement sensor is installed, a central processing unit, and a web server,
Obtaining, by the water quality measurement unit, measurement information on a plurality of measurement items of a specific water through the multi-item water quality measurement sensor;
Receiving, by the central processing unit, measurement information regarding the plurality of measurement items from the water quality measurement unit through wireless communication; And
And the central processing unit analyzing the water quality state of the specific water based on the received measurement information on the plurality of measurement items. According to claim 1, wherein the body of the water quality measurement unit
At least one of a solar power generation unit and a wind power generation unit, the water quality management method using the buoy sensor
The water quality management method using a mobile water quality measurement unit further comprising the step of supplying power through at least one of the solar power generation unit and the wind power generation unit. According to claim 1, wherein the body of the water quality measurement unit
Including a location information module, the water quality management method using the mobile water quality measurement unit
Receiving, by the water quality measurement unit, location information of the floating unit through the location information module; And
The central processing unit further comprises the step of receiving the position information of the received from the water quality measurement unit water quality management method using a mobile water quality measurement unit. The method of claim 1, wherein the plurality of metrics
pH, water temperature, electrical conductivity, turbidity, dissolved oxygen, chlorophyll-a, nitrate nitrogen, ammonia nitrogen, the water quality management method using a mobile water quality measurement unit comprising the item. According to claim 1, wherein the body of the water quality measurement unit
Water quality management method using a mobile water quality measurement unit, characterized in that implemented by FRP (Fiber Reinforced Plastics). According to claim 1, wherein the water quality management method using the buoy sensor
And transmitting the water quality state information analyzed by the central processing unit to a specific web server. The method of claim 1 wherein the wireless communication is
Water quality management method using a mobile water quality measurement unit, characterized in that the IP-USN (Internet Protocol-Ubiquitous Sensor Network) based data transmission and reception technology. Water quality that includes a multi-item water quality measurement sensor having a plurality of water quality measurement sensors, and a floating body equipped with the multi-item water quality measurement sensor, and acquires measurement information on a plurality of measurement items of a specific water through the multi-item water quality measurement sensor. Measuring unit; And
A central processing unit for receiving measurement information on the plurality of measurement items from the water quality measurement unit using wireless communication, and analyzing the water quality state of the specific water based on the received measurement information on the plurality of measurement items. Water quality management system using a mobile water quality measurement unit, characterized in that. According to claim 8, wherein the water quality measuring unit
An anchor portion fixed to the bottom surface of the water;
An auxiliary part having a first detachable part provided at one side thereof and connected to the anchor part, and having a second detachable part provided at the other side thereof;
The floating body connected to the second detachable part and provided with a system box and a battery part;
A cover unit provided with a solar power generation unit to supply power to the battery unit and coupled to an upper portion of the floating unit to form an insertion space;
An antenna unit inserted into the insertion space and transmitting the information received from the system box to the central processing unit; And
The multi-item water quality measurement sensor is rotated by a rotating shaft installed at the rear of the floating body and transmits the water quality measurement data of a specific water to the system box. Water quality management system using a mobile water quality measurement unit, characterized in that. 10. The method of claim 9,
The floating body includes first and second protrusions protruding downward from both sides based on the multi-item water quality measurement sensor, and a water reservoir is formed in the first and second protrusions. Management system. The method of claim 8, wherein the plurality of metrics
pH, water temperature, electrical conductivity, turbidity, and water quality management system using a portable water quality measurement unit comprising an item containing dissolved oxygen, chlorophyll-a, nitrate nitrogen, ammonia nitrogen. The method of claim 8, wherein the body of the water quality measurement unit
Water quality management system using a mobile water quality measurement unit, characterized in that implemented by FRP (Fiber Reinforced Plastics). The method of claim 8, wherein the central processing unit
The water quality management system using the mobile water quality measuring unit, characterized in that for transmitting the analyzed water quality information to a specific web server. 9. The method of claim 8, wherein said wireless communication is
Water quality management system using a mobile water quality measurement unit, characterized in that the IP-USN (Internet Protocol-Ubiquitous Sensor Network) based data transmission and reception technology.

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