WO2014157833A1

WO2014157833A1 - Expert decision-making system based on water quality sensor and remote monitoring system in water treatment plant

Info

Publication number: WO2014157833A1
Application number: PCT/KR2014/001227
Authority: WO
Inventors: 강형석; 연인철; 김현욱; 이재경
Original assignee: 현대엔지니어링(주)
Priority date: 2013-03-25
Filing date: 2014-02-14
Publication date: 2014-10-02
Also published as: KR101301072B1

Abstract

The present invention relates to a water quality sensor and a remote monitoring system which are equipped to analyze and manage water quality in a water treatment plant and, more specifically, to an expert decision-making system based on a water quality sensor and a remote monitoring system in a water treatment plant, capable of reducing labor costs by adding, to a conventional water quality sensor and remote monitoring system in a water treatment plant, a system for decision-making by an expert, thereby requiring less manpower than that needed for direct management on-site; and also allowing more accurate and precise real-time management of the water treatment plant due to the expert's decision-making.

Description

Expert Decision Making System Based on Water Quality Sensor and Remote Monitoring System in Water Treatment Plant

The present invention relates to a water quality sensor and a remote monitoring system installed to analyze and manage the water quality of a purified water treatment plant.

More specifically, by adding a system for expert decision making to the existing water quality sensor and remote monitoring system of the water treatment plant, labor costs can be reduced by requiring less manpower than directly managed in the field, and also expert decision making. H-ECO WATER SUPPLY SYSTEM ™ is an expert decision system based on water quality sensor and remote monitoring system of water treatment plant that can manage water treatment plant more accurately and precisely in real time.

Many developed countries are now fostering water industry companies to expand their overseas expansion. In particular, countries such as France, Italy, Germany, and the United States, which are fostering world-class water companies, are supporting the expansion of the market by investing public funds to foster water companies. Recently, water companies have focused on developing countries. As a result, the company is advancing into the global water market by providing a total solution service for waterworks, and is pursuing integration and wide area to resolve localities and inefficiencies.

In addition, with the establishment of large-scale water supply markets in China, India, and Southeast Asia, the expansion of these markets is expanding, and in less developed countries and developing countries such as Southeast Asia and Africa, the improvement of the existing water purification plant that produces inadequate water for drinking water is also being promoted. Investors are investing in financial resources, but the lack of technology makes it difficult to improve.

In the case of underdeveloped countries and developing countries, it is difficult to secure investment finance for water supply facilities, and a simple process is used. Therefore, many problems occurring in water purification plants are simply handled based on the operator's experience. In particular, in the case of underdeveloped countries such as Vietnam, the agricultural water supply rate is more than 30%, and in the case of underdeveloped countries and some developing countries, the water supply rate is only 70% in urban areas and 40% in rural areas.

This is because the treatment facility is not operated according to a standardized manual, and the facility is operated based on the operator's experience. As a result, underdeveloped countries in Southeast Asia detect high concentrations of bacteria as well as sediment in water pipes. Is measured at 31-88 mg / L.

Therefore, it is necessary to improve the water quality by introducing low energy / low cost treatment process to improve the water quality of the existing treatment facilities to the suitable water quality for drinking water.In particular, in the future, energy efficiency will be increased beyond the purpose of simply producing water quality suitable for drinking water. It is required to secure a process to make it.

In addition, in Southeast Asia, there are frequent power outages due to climate change, such as thunderstorms, and power is not supplied regularly. Therefore, in the case of underdeveloped countries and developing countries, water quality sensors are simply installed in water treatment facilities. It is attached to measure flow rate and water quality items, but it is not used as a data for proper decision making.

Therefore, low-grade drugs are being put into maintenance and deterioration of instrumentation facilities and operation costs due to the lack of training of professional educators. Therefore, it is necessary to apply them to many water purification plants in developing countries through the development of differentiated technologies. Increasingly, the same operation management system has been introduced to optimize water treatment facilities. In advanced and developing countries, the operation of facilities is being managed.

A system for optimizing the operation of a general facility establishes a SCADA system and controls each unit process such as disinfection and filtration. In particular, chemicals such as flocculant can be automatically injected according to the flow rate of the water purification plant, and a water quality analyzer can be installed immediately after the point of chemical injection to monitor the water quality continuously.The data measured from the turbidimeter and particle counter can be monitored through the SCADA system through PLC. Feedback.

In addition, in the filtration process, overall operation management such as filtration and backwash is automated through the SCADA system. Recently, process parameters such as ozone, chlorine, pH, phosphorus, and fluorine are monitored by a real-time measuring instrument. It will be sent to the SCADA system. However, due to the advancement of the water treatment facility and the complexity of the instrumentation facility, a lot of professional manpower and maintenance costs are required.In addition, the operation cost of the facility is reduced due to the decrease in operational efficiency even after the SCADA system is installed due to the aging of the instrumentation facility and insufficient maintenance. In addition, the risk of accidents in the facilities due to malfunction and inaccuracy of the instrumentation equipment is greatly increased.

Developing countries and underdeveloped countries lack the know-how of system development and expert manpower for optimal operation of advanced water treatment facilities, which makes it difficult to respond to malfunctions of instrumentation equipment and automatic control devices. It is very difficult to expect to secure.

As such, there is a water treatment plant monitoring system for monitoring and purifying water quality by monitoring water quality conditions such as DO, pH, MLSS, temperature, NH ₄ and NO ₃ in a water treatment plant in general. The system that monitors the purified water treatment plant detects the change in water quality and supplies purified water to clean water when the water is contaminated, and automatically determines the amount of purified chemical according to the model where the standard value data of water is input. It is operating.

According to the input model, the device to automatically supply the purified water is increased as the water treatment plant is highly sophisticated and diversified, and the authorization to be considered at the same time increases, and the determination thereof is complicated, making it difficult to optimize the operation of the water treatment plant. There is also a significant increase in risks due to malfunctions and inaccuracies.

More specifically, currently used flocculant input determination methods include a Jar-Test determination method, a data base and a microprocessor determination method, a Zeta Potential Meter or a Streaming Current Detector (hereinafter referred to as SCD).

The method of determining the coagulant input amount by Jar-Test is a method of determining the coagulant input amount having the best turbidity treatment efficiency through the coagulation-mixing-precipitation process after inputting the coagulant injection amount to several Jars differently. Jar-Test is the most common method currently used in all water treatment plants and is used in comparison studies for estimating appropriate quantities. However, Jar-Test has a problem of slow response time to rapid water quality changes and difficulty in automating input facilities.

In addition, the coagulant input amount determination method using a data base and a microprocessor receives water quality data such as water temperature, turbidity, alkalinity, pH, etc., which influence factors in determining the coagulant input amount, and water quality data of more than one year using a microprocessor. As a method of determining the optimal flocculant dosage, it is possible to quickly respond to sudden changes in water quality to prevent water accidents, improve water purification efficiency, and to easily analyze and accumulate water quality data, but the optimization system itself is expensive and determines the flocculant dosage. Because of the large number of factors, there is a high probability that errors will occur in determining the flocculant input.

The method of determining the coagulant input amount using Zeta Potential Meter or SCD continuously measures the surface charge of colloidal particles in the sample, corrects the coagulant input amount based on the surface charge for the coagulation state, and continuously adjusts the coagulant according to the optimum coagulation conditions. It is a method to automatically adjust the input amount, so it is not necessary to instruct the separate flocculant input amount, and it is possible to determine the optimal flocculant input amount by using SCD and flocculant input device independently regardless of the data of raw water flow meter and water quality meter. This is easy,

Depending on the raw water, the sampling pump may be clogged, and the set point is very important because the measured value of SCD is relative, but there are few applications to set it independently.

The flocculant input amount is determined based on the above methods, and then the flocculant is added by a control valve, a metering pump, and a rotary dip feeder.

As one of the coagulants, chlorine is used as a disinfectant in water treatment facilities because of its low cost and long-lasting effect, and the input amount is used to determine the input amount of chlorine based on the breakthrough point where the amount of residual chlorine increases and decreases. In the current water treatment process, the control of chlorine input is done by calculating the chlorine input through the ammonia nitrogen measuring instrument and checking the residual chlorine in the post process.When the chlorine concentration is low, it is not effective as a disinfectant and chlorine concentration. At high, proper control measures are needed because harmful disinfection by-products may occur and drinking may cause problems such as people's rejection of chlorine smell.

Therefore, as a control method, a manager and a water treatment plant are operated by the manager to make complicated judgments due to the sophisticated and diversification of the water treatment plant.

Conventional technologies for operating a manager for managing a water treatment plant include Patent Publication No. 2001-0069973, Remote Expert Control Management System for Sewage Treatment Plant, and Publication 10-2006-0013339, Simple Water Supply Remote Management System. have.

The JP-A-2001-0069973 `` Remote expert control management system of sewage treatment plant '' is a water quality measuring unit for measuring water quality items, and the wavelength (sound) generated from the devices installed in the sewage treatment plant, and the like and corresponding data A sound sensor for outputting an image, an image photographing unit for photographing the color and processing state of the sewage, a host computer for converting each data output from the water quality measuring unit, the sound sensor, and the image photographing unit into a constant data column; A central DB server for interfacing the data inputted from the host computer to a consignment manager and a peripheral device, and a fuzzy sewage treatment plant management expert for determining the data output from the central DB server and outputting control signals for sewage treatment management accordingly. System and operation of sewage treatment apparatus by operating according to the control signal output from the expert system It consists of controlling fuzzy sensor and PLC control system to remotely check the quality of the sewage flowing into the sewage treatment plant, the abnormality of the sewage treatment system and the color of the sewage, and accordingly to control and manage the operation of the sewage treatment system remotely. We present a remote expert control management system for sewage treatment systems.

The simple water management remote management system relates to a simple water supply remote management system, which detects state information including water quality information stored in a water purification tank of a simple water supply and transmits it through a communication network. A simple tap water monitoring value installed for each water tank of a simple tap water, and the status information sent from the tap water monitoring device through a communication network, can be stored and viewed, and a control is available to control the tap water monitoring device. Have a server. According to such a simple tap water remote management system, it is possible to grasp the water quality status of a simple tap water at a remote location in real time, so that necessary measures can be taken before the water quality of the tap water falls outside the management allowance. Presenting the system.

However, the two prior arts have a problem in that a system is complicated by managing several kinds of treatment plants in one place, and it is difficult to promptly intervene by an expert even when simple processing is required by relying on an expert system.

Conventional technology using an automatic control device without operating a manager for managing a water treatment plant is disclosed in Korean Patent Application Publication No. 10-2009-0132411, `` Integrated management system for remote control of village waterworks. ''

The above-mentioned Patent Publication No. 10-2009-0132411 `` Integrated management system for remote control of village waterworks '' is a technology for remotely controlling village waterworks facilities in rural and rural areas in each city and county's situation room. Groundwater wells installed, water tanks installed in the highest mountains of the village, water level regulators that automatically control when water is supplied from the groundwater wells, and chlorine injectors to sterilize raw water from tap water. It is.

Therefore, the technology of the present invention is a system for remotely controlling the management of the village water supply system by receiving a signal of a flow sensor and receiving a signal of a scale sensor from a weight of a chlorine tank to detect an amount of chemicals injected into the chlorine injector. It is a technology that instructs the rotation of the motor so that a certain amount of chlorine is introduced into the water pipe to maintain a constant amount of residual chlorine at all times, and to detect the level of the water tank at any time so that there is no problem with the water supply. It is connected to the county's situation room supplier's situation room and remotely controls and monitors frequently from the monitor so that there is no problem, and maintenance is convenient in one place. Improved water is supplied to the village to prevent infectious diseases such as water-borne diseases. Presenting an integrated management system.

However, the prior art has a problem that there is a risk of malfunction of the system by a remote management method by an automation system, and the complex determination of the necessary water cannot be made as the water treatment plant becomes complicated.

In addition, there is a conventional technology for remotely operating a manager to manage a water treatment plant, there is a registered method 10-117186 "Remote management method of village water supply system".

The prior art Patent Registration No. 10-117186 `` Remote management method of village water supply system '' relates to a remote monitoring device and a management method of the village water supply system equipped with an intelligent sedimentation tank according to the raw water quality changes, more specifically inflow The present invention relates to a method of automatically purifying and remotely maintaining and managing a village water supply system including a sedimentation tank according to the physical and chemical conditions of raw water. According to the remote monitoring and management system of village waterworks according to the present invention, the water treatment of the village waterworks facilities by remote control, the operation of the village water supply site monitoring by unmanned wired and wireless information transmission to monitor environmental conditions It is possible to overcome the situation, and to check the operation status of various subsidiary facilities of village water supply facilities and water quality analysis values in real time, and to manage the integrated management center, the administrative departments of the unit administrative district by networking the control center and field manager terminals Efficiency can be maximized, and if an abnormality occurs in the village water supply, alarms are sent to the integrated management center and site managers for immediate action, so that they can respond quickly to problems and identify the current situation from the development of the village water supply center to the current management situation. By water quality, by region, by capacity In addition, this paper presents a remote management method that facilitates inquiry, retrieval and analysis of various statuses by analyzing the analysis by period and tracking the trend of water quality.

However, the above-mentioned conventional technology is remotely controlled by the administrator, but by analyzing the water quality information and not directly controlling, but presenting a technology for contacting the operator and the manager in the field, it is impossible to respond quickly and indirect control method will cause an error. There is a problem that there is a risk.

Accordingly, the present invention has been made to solve the above problems, in the expert decision-making system based on the water quality sensor and remote monitoring system of the water treatment plant,

The expert system can make more complex judgments than the method of controlling the water quality of the water treatment plant using the automatic control device, so that the operation of the water treatment plant can be optimized.

By managing the water treatment plant remotely, it is possible to solve the problem of shortage of labor and increase of labor cost caused by experts in the field.

There is no distance limitation due to remote, so it is not restricted to the region

By further configuring the auxiliary communication server, it is possible to prevent the operation of the entire water treatment plant by stopping the auxiliary communication server even in case of emergency such as a server failure.

In addition, by using the existing network, using PLC and HMI system, not only can reduce the installation cost but also maximize the compatibility with the existing system.

In addition, it is possible to respond quickly to the situation by including an automatic control device for a simple action that does not require expert decision-making, and also includes a monitoring device and a calling device to immediately recognize when a problem occurs as well as in the absence of an expert. Send the contents to the expert's terminal for immediate response,

The aim is to provide H-ECO WATER SUPPLY SYSTEM ™, an expert decision-making system based on water quality sensors and remote monitoring systems of water treatment plants that can maintain optimal water quality with accurate judgment in water treatment of water treatment plants.

In order to achieve the above object, the expert decision system based on the water quality sensor and remote monitoring system of the water treatment plant in the present invention

Water treatment plant equipped with water injection means and water quality sensor;

A first control unit for controlling the purified water chemical input means and the water quality measurement sensor of the water treatment plant, a DB server for storing the water quality information measured by the sensor, and a first communication unit for transmitting the water quality information of the DB server to the outside; Field control system; And

A second communication unit for receiving the water quality information of the purified water treatment plant through the first communication unit, an arithmetic unit for processing the water quality information received through the second communication unit, a water treatment plant water quality status display unit indicating the information processed by the arithmetic unit, and a water purification plant A remote monitoring system including a remote second control unit including a display including a chemical input decision display unit for controlling the purified chemicals input means;

Consisting of,

The information input to the medicine input determination display unit of the second control unit is transmitted to the first communication unit through the second communication unit, the field control system is characterized in that it controls the water purification medicine input means,

The first communication unit

It consists of the main communication server and secondary communication server,

The secondary communication server is characterized in that to prevent the system of the water treatment plant is stopped by the operation of the secondary communication server when the main communication server is stopped in case of an emergency such as a server failure.

As described above, the H-ECO WATER SUPPLY SYSTEM ™ developed as an expert decision system based on the water quality sensor and the remote monitoring system of the purified water treatment plant according to the present invention is a water treatment plant as the input information of the medicine input by the expert is input to the remote monitoring system. This complexity and variety allows you to make complex and detailed decisions for optimal operation,

Remote management eliminates the need for on-site specialists to solve labor shortages, reduces labor costs, and manages remotely to solve local problems without distance constraints.

By using the auxiliary communication server, even if the main communication server is stopped due to an emergency situation, the whole operation of the water treatment plant is prevented from being stopped.

By using existing network and using PLC and HMI system, it reduces installation cost and maximizes compatibility with existing system.

In addition, simple measures, including the automatic control device, can be solved through the automatic control device, and in a situation requiring complex judgment, the expert system can be utilized to manage the water quality quickly according to the situation.

In addition, it is possible to identify the problem clearly when the problem occurs through the monitoring device, and to recognize the problem in the absence of the expert by transmitting the problem generated through the call device to the terminal of the expert,

Remotely managing operators and managers in the field can solve the problem of not responding quickly.

In addition, according to the present invention, it is possible to secure technological competitiveness through operational know-how and to establish a foundation for entry into overseas technology market, and to secure optimized water treatment operation technology, as well as to verify and commercialize technology through test bed operation. Enjoy the scientific and technological effects to secure

Industrial economic effects by securing market competitiveness through optimized driving techniques, ordering medium and large-sized environmental plants and entering into developing markets, contributing to the activation of environmental industry and creation of new demand, and providing total solution for water treatment treatment including design, purchasing, construction and operation. Enjoy.

In addition, it can achieve energy saving effect through optimized operation technique and environmental effect to secure stable treated water quality.

1 is a block diagram according to the present invention.

2 is a block diagram of a PLC control according to the present invention.

3 is a block diagram of an HMI control according to the present invention.

4 is a main screen of a display unit according to the present invention;

5 is a menu selection screen of the display unit according to the present invention.

6 is a water quality monitoring screen of the display unit according to the present invention.

7 is a flow rate monitoring screen of the display unit according to the present invention.

8 is an expert monitoring screen of the display unit according to the present invention.

9 is a monitoring screen of the purified water of the display unit according to the present invention.

10 is a coagulation / deposition tank monitoring screen of the display unit according to the present invention.

11 is a pump monitoring screen of the display unit according to the present invention.

12 is a block diagram of a pest control system provided in the water treatment plant according to the present invention.

13 is a front view and a plan view of a pest control system provided in the water treatment plant according to the present invention.

Explanation of symbols on the main parts of the drawings

W: Water treatment plant 10: Field control system 11: First control unit

111: sensor 113: water purification chemical input means 115: PLC

117: HMI 13: the first communication unit 13a: main communication server

13b: auxiliary communication server 15: DB server 17: monitoring device

133: second modem 135: second router

20: remote monitoring system

21: second remote control unit 211: second communication unit 211a: the first router

211b: first modem 213: calculator 215: display

217: automatic control device 23: monitoring device 25: calling device

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

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, in the drawings, the components are exaggerated in size (or thick) in size (or thick) in size (or thin) or simplified in consideration of the convenience of understanding and the like, thereby limiting the scope of protection of the present invention. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In addition, in the following description, the drawing groups of FIGS. 1 to 11 and the drawing groups of FIGS. 12 and 13 are irrelevant to refer to different components even when reference numerals overlap with each other.

First, as shown in FIG. 1,

The present invention is H-ECO WATER SUPPLY SYSTEM ™ developed as an expert decision system based on water quality sensor and remote monitoring system of water treatment plant.

In general, when applying a new system to a water treatment plant already constructed and operated

It is necessary to build a separate control system for the new system and to construct additional facilities for it, which increases the initial introduction cost.

In addition, it may be necessary to ignore the control system of the existing Supervisory Control And Data Acquisition (SCADA) system and apply the automatic control system of the new system. In this case, problems such as control priority may occur.

Therefore, H-ECO WATER SUPPLY SYSTEM ™ according to the present invention analyzes the control part of the existing SCADA system to build an automatic control system to be applied in the research project,

The new system of the present invention analyzes the water quality data collected from the integrated water quality sensor and the data collected from the existing SCADA system to calculate the optimal value for the control of purified water input and transmit the control value to the existing SCADA system. It is to control the amount of purified water input.

The first control unit 11 for controlling the purified water chemical injection means 113 and the water quality measurement sensor 111 of the purified water treatment plant (W), and DB (Database, Database) for storing the water quality information measured by the sensor 111 A server 15 and a field control system 10 including a first communication unit 13 for transmitting the water quality information of the DB server 15 to the outside.

More specifically, the water quality sensor 111 is provided in each of the intake source, the water purification plant, the faucet and the water purification plant of the purified water treatment plant (W) to monitor the state of water quality of the purified water treatment plant (W) in real time, and the water quality sensor (111). The water quality information measured as is collected by the DB server 15 through the second router 135.

In addition, the water quality sensor 111 measures the water quality as a unitary one time / time period or any determined period, and transmits the measured data to the server every 5 minutes or a specified time unit.

The purified water injection means 113 is installed in each process step of the water quality sensor 111 or the water treatment plant, and the various purified chemicals for each process such as chlorine, flocculant, etc. to prevent contamination of the water quality. Each is configured for input.

The DB server 15 uses at least one server in preparation for an emergency such as a power failure, an error, and the like, by preventing the loss of information through the remaining servers when the main DB server 15 stops working. It can secure the stability of water treatment plant operation.

In addition, the communication server of the first communication unit 13 may also be composed of a main communication server 13a and an auxiliary communication server 13b, and the auxiliary communication server 13b may be configured of one or more servers. This prevents the system of the water treatment plant through the auxiliary communication server 13b when the main communication server 13a is stopped in case of an emergency such as a server failure or power failure as in the DB server 15. This is to ensure smooth operation.

In addition, the communication network of the first communication unit 13 may be installed in a wireless manner when it is difficult to use a wired network or a place where a wired cannot be used, as well as by using a wired network that is configured in advance. Or it can be installed wirelessly and used selectively according to the place and facilities.

As shown in FIG. 1, the water quality information collected by the DB server 15 is transmitted to the second communication unit 211 through the first communication unit 13 via the first router 211a, and at the same time. It is output to the monitoring apparatus 17. The information output to the monitoring device 17 is analyzed and the water quality and water quality management can be controlled in the field through the monitoring device 17.

In addition, the field control system 10 is configured as well as the water quality sensor 111 provided in the water treatment plant (W) by configuring the water quality sensor 111 in various places, such as faucet, intake source, as well as each process of the water treatment plant (W), The water quality is measured, and the water quality information measured by the water quality sensor 111 is transmitted to the calculation unit 213 of the second control unit 21 through the second modem 133 and the water quality information as in each process of the purified water treatment plant. Analyze is output through the display 215, and by analyzing the output information to control the water quality and water quality management of the faucet and intake source.

The field control system 10 collects water quality information using a programmable logic controller (PLC) 115 and a human-machine interface (HMI) 117 system.

More specifically, SCADA system installs DCS (Distributed Control System) in large water treatment plant, and small and medium scale water treatment plant installs PLC and HMI system. However, in Equatorial Guinea water treatment plant, SCADA system is composed of PLC and HMI system, so there are two ways to collect data from SCADA system.

When data is collected from the HMI system, a database is configured by using an HMI system's own format for monitoring an operating state of a water treatment plant. In this case, the HMI system does not provide external data access. However, if the HMI system provides the ability to store data in an external database file (such as MS-SQL), the database file can access and collect data, and some HMI systems provide their own database by providing API (Application Programming Interface) libraries. It also provides a way to read data from.

On the other hand, PLC is a device that collects data from measurement equipment and facilities installed in the field, and HMI system is monitoring the system with data collected from PLC.

The PLC 115 is a device that is actually placed on site, an economical and versatile controller designed for a specific use, and the small and medium-sized water purification plant operates PLC 115.

Thus, as shown in FIG.

In the case of collecting data from the PLC 115, when the first communication unit 13 provides information to directly control the purified chemical input means 113 to the PLC 115, the PLC 115 supplies the purified chemical input means ( 115) is directly controlled.

However, since the HMI 117 system differs from the PLC 115 in the data linkage method, the implementation method is changed. As illustrated in FIG. 3, the HMI 117 system is used to transfer data to the HMI 117 system. It is not possible to directly control the purified water injection means 113, it is to control the purified water injection means 113 using the PLC (115).

As shown in FIG. 1, the second communication unit 211 receives water quality information of the water treatment plant through the first communication unit 13 and the water quality information received through the second communication unit 211. And a display unit 215 including a calculation unit 213, a water treatment plant water quality status display unit indicating the information processed by the operation unit 213, and a medicine input determination display unit controlling the water treatment medicine injection unit 113 of the water treatment plant. The remote monitoring system 20 including the remote second control unit 21 is configured.

In more detail, the water quality information moved to the first router 211a of the second communication unit 211 through the first communication unit 13 is moved to the operation unit 213 through the first modem 211b. Although FIG. 1 illustrates the Internet, a network that is not restricted by distance, such as the Internet, Ethernet, and networks, which are constructed around the world, may be used.

Therefore, underdeveloped countries and developing countries such as Southeast Asia and Africa are investing funds to improve water treatment plants (W) that produce water that is not suitable for aging and drinking water, but it is difficult to improve due to lack of technology. It can manage the water treatment system of underdeveloped countries and developing countries in Korea, and solve the problem of lack of local field manager and lack of technology.

In addition, the first communication unit 13 and the second communication unit 211 may be configured to use not only a newly constructed network but also a network of a water treatment plant (W), which has been used in the past, to use a network in the developing country. In addition, the installation cost for a new network can be reduced.

The remote monitoring system 20 further includes an automatic control device 217

The automatic control device 217 is linked to the operation unit 213, and analyzes the water quality information moved to the operation unit 213 through the second communication unit 211 to automatically control the purified water injection means 113. .

The automatic control device 217 sets an on-line analysis item and an offline input item, and the on-line data is a data that can take simple actions. Using this data, a model for process control is set and based on the set value. Automatic control device 217 is to control the purified water injection means 113.

On the other hand, since the offline input item requires a complex judgment rather than a simple measure, the automatic control device 217 is not used, and the calculation unit 213 outputs the water quality information to the display 215 and through the display 215. Analyzes the output water quality information, and transmits an input signal to the display 214, the transmitted input signal through the operation unit 213, the second communication unit 211, the first communication unit 13 and the purified chemicals input means ( 113 to sequentially move to control the purified water injection means 113,

The expert system of the water treatment plant (W) diagnoses the operation status of the water treatment plant based on the water quality data measured by the sensor, and actively controls the treatment facility according to the flow rate and water quality change to increase the treatment efficiency and reduce the operation and management costs. There is an advantage to this.

Environmental foundations such as water treatment plants (W), which are already constructed and operated, require a lot of professional manpower and maintenance costs, but especially in developing countries, they lack the manpower and most of them are distributed in large areas. The problem is that there is a problem that the discharged water quality is changed greatly due to the sudden change in the quantity and water quality, and the operating cost is also high due to the low operational efficiency.

In order to efficiently manage and operate water treatment facilities, we have introduced an expert system and an automatic control system for water treatment facilities based on water quality sensors and integrated operation management. As the system developer and the driver have many factors to consider at the same time,

Not only is the judgment complicated, but the risks of malfunctions and inaccuracies of the automatic control devices have increased greatly, and the expertise of many machines and devices is required for integrated operation.

However, it is very difficult to expect professional personnel to be secured in the field. Therefore, it is necessary to apply simple and reliable technology development to ensure integrated operation and automatic control of water treatment facilities and to secure economical efficiency and operation stability. to be.

[Table 1] shows the basic development diagram of the expert system.

Table 1

According to [Table 1], the expert system is divided into a PLC stage, a SCADA stage, and an off-line stage. The PLC and SCADA stages are on-line and automatically controlled directly, but the off-line stage requires remote control by an expert because of complex judgment. This expert system operates on the basis of instrumentation, control and automation (ICA), water quality sensors and monitoring systems of water treatment facilities, and improves process control and efficiency by using precision water quality sensors and simplified models. In addition to ensuring the stability of operation.

Table 2 below shows the information hierarchy.

TABLE 2

Table 3 below shows an overview of the real-time expert system.

TABLE 3

As shown in [Table 2] to [Table 3], the online water quality data analyzed in real time from the PLC is transmitted according to the information hierarchical structure to perform real time process control through the model, and transmit these data to the operator in real time. As shown in the following [Table 3], we operate an expert system that operates individual unit processes, perform performance evaluations on them, optimize programs for individual unit processes, and develop a methodology for applying appropriate correction values for each region. Through this, the real-time process control and the subsidiary can be operated optimally by the actual operator.

As shown again in FIG. 1, the remote monitoring system 20 further includes a monitoring device 23 and a calling device 25,

The monitoring device 23 detects when the water quality moved to the display 215 through the operation unit 213 is contaminated or a problem occurs in the system of the water treatment plant W, and displays a warning by an external signal. . As the method of displaying the monitoring device 23 to the outside, various methods using visual and auditory effects such as a siren, an indicator light, and a pop-up window may be used, and the various methods may be overlapped. This can optionally select a suitable method depending on the place, time and user.

In addition, the monitoring device 23 is provided in conjunction with the call device 25, which is a device for transmitting the contents generated through the monitoring device 23 through the terminal of the expert and the user. In addition, the terminal includes a variety of portable terminal devices, such as personal smart phones, tablet PC, not only can check the contents through the terminal, but also can determine the input amount of the purified water injection means 113 directly in the terminal. .

The display 215 of the remote monitoring system 20 includes a display unit for outputting the water quality information provided from the operation unit 213,

The display unit is displayed as shown in Figures 4 to 10 can grasp the water quality information and control the amount of purified water input.

When comparing the drawings and explaining the display unit, FIG. 4 is a main screen of the display unit. 5 is a screen showing the menu of the system, it is possible to monitor and control the water treatment plant (W) through FIGS. 5A to 5C.

6 to 7, the information output through the display 215 can be confirmed by superimposing the water quality and flow rate of the entire water treatment plant (W) on the map of the display unit, respectively, in each region The color is changed according to the flow rate. Blue is used for normal use, red if more than usual, and yellow when less than normal. However, these colors are arbitrarily determined by the user and can be displayed in various colors.

In addition, FIG. 8 is a screen for the expert to monitor and control the water treatment plant W. The display 215 analyzes the information output through FIG. 8 and controls the water treatment plant through the analyzed information.

In more detail, FIG. 9 is a screen showing a purified water and a screen for measuring and outputting water quality data for each zone of the purified water. Each water quality data for each zone of the purified water can be measured and analyzed, as shown in FIG. 10. In addition, water quality data from flocculation / deposition tanks can also be measured and monitored.

And, as shown in Figure 11, by monitoring the pump of the purified water treatment plant (W), it is possible to monitor and control the flow rate of the purified water treatment plant (W), although not shown in the figure is currently being used in the switchgear during the water purification process You will configure a screen that monitors electricity. More specifically, in the case of Korea, as a result of analyzing 449 water purification facilities among 480 water purification facilities as of the end of 2008, the total annual power consumption of water purification facilities was 900,529,029 kWh / yr. It was investigated at about 0.21 kWh / ton. In particular, most of the power consumption of the water treatment plant is occupied by the operating power of the pump, and it is expected that the power consumption of the water treatment plant can be reduced only by optimal operation of the water supply pumping station and the drainage system.

[Table 4] shows examples of operating cost (power) reduction according to the optimization of the pump operation.

Table 4

Recently, hydraulic analysis model, water demand prediction model, and optimal control model are used to reduce the operating power of the pump, and it has been found to have a great effect. When the pump operation plan according to the water demand prediction is applied, EPA Based on the regression analysis method, the actual operation data according to -NET was calculated using the I / O function between the inflow flow rate and the power consumption. As a result, the power saving effect was about 20-30%. In addition, operation optimization of water pump can be obtained through water demand forecasting, drainage optimal operation, water pump optimization, and time variability model is used to forecast water demand, but its periodic and deviation components are based on time series data. We construct the time variance model using and predict the water demand using it. In particular, the correlation between the reservoir level and the pump operation has been studied for a long time, and the control is made accordingly.

In addition, current water resources and water supply and sewage facilities cannot manage the demand of water in real time, causing a problem of deterioration of the operation efficiency due to the imbalance between supply and demand. In the current water and sewage system, the maintenance cost of the system is increasing due to its limitations such as the limitation of the use of various types of water sources such as rainwater, reuse water, and seawater.

Therefore, as a way to overcome the limitations of the existing facilities, the Smart Water Grid has been proposed since 2009, mainly in developed countries such as the US, Australia, and Europe. Smart Water Grid is a next-generation water management system that adopts advanced information and communication technologies (ICT) to improve the efficiency of water resource management.Information is applied in all fields such as management of water resources, production and transportation of water, treatment and reuse of used water. And intelligent operation, and the operation cost that can be reduced through the efficient operation of water treatment facilities is limited to labor cost, power and chemical cost, but the introduction of smart water grid system can optimize the maintenance cost of water supply business. There are a growing number of options.

Therefore, the water treatment plant W monitors electricity currently used in the switchgear during the water purification process, thereby suppressing unnecessary use of electricity by monitoring the amount of electricity used, thereby reducing the cost of electricity use and further purifying the water treatment plant W. Can reduce operating costs.

In addition, the purified water treatment plant (W) is generated harmful sources such as harmful animals or pests. Therefore, water pollution may occur due to these harmful sources. In order to prevent this, a pest control system P may be introduced into the water treatment plant W.

Hereinafter, the pest control system will be described in detail.

First, as shown in FIG. 12, a schematic front view and a plan view of FIG. 13, the harmful animal and pest control system P according to the present invention is largely harmful source detection unit 310, repellent spraying unit 110 Hazardous substance elimination unit 100, including a), the elimination unit operating unit 300, and comprises a microcomputer (PC) for control, the symbol '

'Means a valve, in particular an electric valve.

12 and 13, in the present invention, harmful source detection unit 310, such as a pest or pest in the present invention constitutes a part of the exterminator operating unit 300, basically IR sensor 311, ultrasonic sensor 313 And a plurality of complex sensors composed of a microwave sensor 315 and other sensing senses (various proximity sensors, optical sensors, Doppler antennas, etc.).

Furthermore, the harmful animals and pest control system (P) according to the present invention is basically provided with a timer (320), the main harmful animals or pests at the installation site or together with the complex hazardous source detection unit 310 as necessary, By setting the field or remote to suit the activity characteristics of the can be adjusted to operate the operation of the eradication unit, in particular the composite elimination unit 100 in units of time.

In addition, the present invention introduces an error detection unit 330 connected to the entire retractor operation unit 300 including a sensor 310 or a timer 320 configured as a sensor in connection with a microcomputer (PC).

Specifically, the repellent spraying unit 110 includes a repellent storage unit 110, a repellent pumping means connected to the repellent storage unit, a repellent storage unit 113 connected to the repellent storage unit and the pumping means,

The spray nozzle 113 is preferably provided with a rotating means (113a),

In addition, the pumping means for spraying the repellent in the repellent adjusting unit 111 may be composed of a conventional pressure pump 115 or a compressor.

The pressurized gas 117 constituting the non-powered pumping means has a load arrangement based on a vertical center axis in accordance with the shape of the gas tank 117A, in particular, the shape of the cylindrical type elimination system housing and the weight (W) configured in the form of a recess. In order to be symmetrically arranged in the repellent storage unit 111, in particular the dilution tank 111A includes a gas tank 117A arranged in the form of a hollow cylindrical form of space.

To this end, the lower end of the housing has a round outer bottom portion and has a weight W. The water injection valve W1 is provided at one side of the bottom so that water can be introduced from the outside as needed. After the mobile installation by the crane or the like to inject water to have an upright form. In addition, the drain valve (W2) for discharging water in the case of moving or installing to another place or dismantling after the use of the elimination system (P) is provided inside.

The liquefied gas of the gas tank 117A and the vaporized gas of the vaporization chamber 117B are connected through separate connecting pipe L1 (L2) (with a housing upper surface) provided with a valve, respectively.

In addition, in order to smoothly supply the repellent without interruption is provided with a chemical liquid tank (111B) in which a separate concentrated concentration repellent is stored, the concentration sensor 111C and the microcomputer (PC) that can detect the bottom of the dilution tank (111A) The chemical liquid is injected into the dilution tank by the read-out control and diluted to the concentration corresponding to the reference value.

Diluent can be used for water repellent solely or replenishment in the case of water-soluble repellent, funnel (F) is provided in the upper portion of the housing for the mastication of rainwater, filter (F1) (or in the funnel (F) to prevent foreign matter inflow) It can be provided on the inlet pipe) is provided, the opening and closing of the flow path opening and closing valve of the funnel (F) can be made by the automatic operation during the rest or rainy weather of the elimination system (P) or by external operation by wired or wireless communication.

On the other hand, when the harmful animal and pest control system (P) including a repellent spraying unit according to the present invention is installed in a plurality of places or installed in a remote place, wired 410 or wireless (420) for the management, monitoring, maintenance of the extermination system ), Or both, a communication unit 400 may be constructed.

The wireless control unit R2 through the wireless communication unit 420 may be a remote controller Rb or a smart phone Ra on which an appropriately built application program is mounted.

Furthermore, the electric valve mounted on various parts, the pressure pump 115 or the compressor constituting the pumping means, the sensor of the noxious source detection unit 310, the timer 320, the error detection unit 33, the malfunction detection unit 160 described later ), The communication unit 400, the moving means (T), the repelling unit 100, such as the power supply unit 200 for supplying the power required to some or all of the components of the repellent system (P) is a solar cell 210, 110V or It may be configured as part or all of the commercial power source 220 and the battery 230, such as 220V, the battery 230 may take the manner of being charged in the solar cell 210 or the commercial power source 220.

The malfunction detection unit 160 also has a notification unit 161. When the detection unit 100 detects a malfunction of the eradication unit 100, the notification unit notifies each individual elimination system P through light emission, voice, or readout display.

The ultrasonic generator 120 in the complex eradication unit 100 is a device for emitting an ultrasonic wave (frequency) for chasing pests or harmful birds,

The repelling sound generation unit 130 records the birds of prey (for the construction of mice, etc.) and the birds of prey on the recorder 131 (see FIG. 13B) (tape, CD, MD, MP3 files, etc.) It may be in the form of sounding an alarm.

Next, the electric shock reduction unit 150 may be the same as a conventional mosquito electric shock mechanism, or may be configured to chase an elk or a wild boar by forming an electric shock reduction unit through which a high voltage current is conducted.

In the above description of the present invention, an expert decision system based on a water quality sensor and a remote monitoring system of a water treatment plant having a specific shape, structure, and configuration has been described with reference to the accompanying drawings. , Modifications and substitutions are possible, and such modifications, changes and substitutions should be interpreted as falling within the protection scope of the present invention.

Claims

Water treatment plant (W) having a purified water injection means 113 and the water quality sensor 111;

The first control unit 11 for controlling the purified water chemical input means 113 and the water quality measurement sensor 111 of the purified water treatment plant (W), and the DB server 15 for storing the water quality information measured by the sensor 111 And a field control system 10 including a first communication unit 13 for transmitting the water quality information of the DB server 15 to the outside. And

A second communication unit 211 which receives the water quality information of the purified water treatment plant W through the first communication unit 13, an operation unit 213 which processes the water quality information received through the second communication unit 211, and A remote second control unit 21 including a water treatment plant water quality status display unit indicating information processed by the operation unit 213 and a display 215 including a medicine input determination display unit for controlling the water treatment chemicals input means of the water treatment plant. Remote monitoring system 20;

Consisting of,

Information input to the medicine input determination display unit of the second control unit 21 is transmitted to the first communication unit 13 through the second communication unit 211, the field control system 10 accordingly the purified water injection means 113 Expert decision-making system based on water quality sensors and remote monitoring system of the purified water treatment plant, characterized in that for controlling the.
The method of claim 1,

The first communication unit 13

It consists of the main communication server (13a) and secondary communication server (13b),

The auxiliary communication server (13b) is a water quality sensor and remote control of the water treatment plant, characterized in that to prevent the system of the water treatment plant is stopped by the operation of the auxiliary communication server (13b) in the emergency stop of the main communication server (13a). Expert decision making system based on monitoring system.
The method according to claim 1 or 2,

The first communication unit (13) and the second communication unit (211) expert decision system based on the water quality sensor and remote monitoring system of the purified water treatment plant, characterized in that configured to utilize the network in the existing water treatment plant.
The method of claim 3, wherein

The remote monitoring system further comprises an automatic control device 217 for automatically controlling the purified water injection means 113 in the input data, the expert decision system based on the water quality sensor and remote monitoring system of the purified water treatment plant. .
The method of claim 3, wherein

The field control system collects information using a PLC and HMI system,

The remote monitoring system

It further comprises a monitoring device 23 and the calling device 25,

The monitoring device 23 monitors the water treatment plant (W) and displays a warning to the outside when a problem occurs in the water quality or the system.

The calling device 25 is an expert decision system based on the water quality sensor and remote monitoring system, characterized in that for transmitting the problem detected from the monitoring device 23 to the terminal of the expert.
The method of claim 3, wherein

The water treatment plant (W) is further provided with a pest control system (P),

The pest control system (P)

In the shape of a cylindrical housing,

Hazardous source detection unit 310, such as harmful animals or pests,

Repellent pest control including a repellent storage unit 110, a repellent spraying unit 110 including a repellent pumping means connected to the repellent storage unit 110, the repellent storage unit and a spraying nozzle 113 connected to the pumping means With 100

When the harmful source is detected by the detection unit 310, the repelling unit operating unit 300 for operating the repelling unit and

Includes a microcomputer (PC) for controlling the elimination unit 100, the detection unit 310, the operation unit 300,

The pumping means is made of a pressurized gas 117,

The pressurized gas 117 is hollow around the repellent storage unit 111 so that the load arrangement is symmetrically arranged with respect to the vertical center axis in accordance with the shape of the cylindrical type extinguishing system housing and the weight having the recessed type. It comprises a gas tank 117A arranged to form a cylindrical space,

The eradication unit 100 further includes some or all of the ultrasonic wave generation unit 120, the avoidance sound generation unit 130, and the electric shock elimination unit 150.

Among these elimination unit 100 further includes a malfunction detection unit 160 for sensing the main operation elimination unit in a malfunction state,

The malfunction detection unit 160 includes a notification unit 161 for notifying a light emission, a voice, and a readout display around the individual eradication system when the malfunction detection unit 100 detects a malfunction.

The harmful source detector 310 is an expert doctor based on a water quality sensor and a remote monitoring system, characterized in that composed of a plurality of complex sensors, such as IR sensor 311, ultrasonic sensor 313 and microwave sensor 315. Decision system.