KR102301766B1 - Mesurement and control system for remote control and management of water treatment facilities - Google Patents

Abstract

An objective of the present invention is to provide a measurement and control system for remote control and management of water treatment facilities, which allows integral control and management at a remote location using an electronic sensor installed at a water treatment facility such as a sewage treatment plant or a water reservoir. The measurement and control system for remote control and management of water treatment facilities comprises: a water treatment controller for managing water level and flow information of a water treatment facility; a water level measuring unit for measuring a distance at upper and lower portions based on a fluid water surface of the water treatment facility to measure water level based on the measured distance and transmit the measured water level information to the water treatment controller; a flow rate measuring unit for releasing and recovering conductive material in fluid supplied to the water treatment facility, for measuring a change in a voltage generated according to a flow of fluid including conductive material to measure a flow rate to transmit the measured flow rate information to the water treatment controller; a communication unit for transmitting water level information and flow rate information managed through the water treatment controller to the outside; and a remote integral control manager for receiving water level information and flow rate information from the water treatment controller through the communication unit to integrally manage the water level and flow rate state of the water treatment facility by remote control of a plurality of water treatment controllers.

Description

MESUREMENT AND CONTROL SYSTEM FOR REMOTE CONTROL AND MANAGEMENT OF WATER TREATMENT FACILITIES

An embodiment of the present invention relates to an instrumentation control system for remote control management of a water treatment facility.

In general, the measurement and control system that measures the water level is a device that is basically necessary to measure the water level in places that require water treatment such as sewage treatment plants and drainage basins (hereinafter referred to as water treatment facilities) or in industrial sites that require management of other liquids. Such a measurement and control system controls the water level by installing a water level sensor and controlling the sensor value to continuously and continuously monitor the water level to adjust the water level.

For example, in the water treatment process, water level management is necessary to reduce costs and improve process efficiency, in order to prevent unnecessary work and malfunctions by stopping the process at a water level below a certain amount or by stopping the process when the water level is below a certain amount. will be.

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

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

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

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

Since the conventional water level measurement and control system is installed on a remote island or has various installation places, such as sewers in the city, it is impossible to immediately repair the device in case of failure. and the like, and the ultrasonic wave is reflected by the structure installed in the sewage pumping station or the drainage basin, and there is a problem in that the accuracy of the water level measurement value is deteriorated.

Republic of Korea Patent Publication No. 10-1923165B

An embodiment of the present invention aims to provide a measurement and control system for remote control management of a water treatment facility capable of integrated control and management in a remote location using an electronic sensor installed in a water treatment facility such as a sewage treatment plant or a water reservoir.

A measurement and control system for remote control management of a water treatment facility according to the present invention for achieving the above object includes: a water treatment control unit for managing water level and flow rate information of the water treatment facility, respectively; a water level measurement unit for measuring distances from the upper and lower portions based on the fluid level of the water treatment facility, measuring the water level based on the measured distance, and transmitting the measured water level information to the water treatment control unit; Discharge and recovery of a conductive material to the fluid supplied to the water treatment facility, measure the flow rate by measuring the change in voltage generated according to the flow of the fluid containing the conductive material, and measure the flow rate to transmit the measured flow rate information to the water treatment control unit wealth; a communication unit for transmitting water level information and flow rate information managed through the water treatment control unit to the outside; and an integrated remote control management unit that receives water level information and flow rate information from the water treatment control unit through the communication unit, and manages the water level and flow rate state of water treatment facilities through remote control of a plurality of water treatment control units, wherein the water level measurement unit , a first ultrasonic sensing unit installed on the surface of the water surface to transmit and receive ultrasonic signals to and from the water surface; a second ultrasonic sensing unit connected to the bottom of the water treatment facility with a wire, floating on the water surface by the floating member, and transmitting and receiving ultrasonic signals to and from the bottom of the water treatment facility; Ultrasonic reflector installed on the bottom of the water treatment facility; an ultrasonic sensing control unit for controlling the first ultrasonic sensing unit and the second ultrasonic sensing unit to be simultaneously operated at preset time intervals; and a first distance value using an ultrasonic signal detected by the first ultrasonic detector, a second distance value using an ultrasonic signal detected by the second ultrasonic detector, and the first ultrasonic detector and the ultrasonic wave calculated in advance and a water level calculator for calculating an optimal second distance value as a water level based on the distance value between the reflectors.

Here, the water treatment control unit may include: a water level measuring filter unit for filtering and removing the ultrasonic waves reflected from the structures in the water treatment facility to measure the water level using the ultrasonic waves reflected from the medium from the ultrasonic waves received through the water level measuring unit; a flow rate measuring filter unit for filtering and removing noise included in the voltage detection signal measured through the flow rate measuring unit; a water level control unit for controlling the water level of the water treatment facility based on the water level information provided through the water level measuring filter unit and the flow rate information provided through the flow rate measuring filter unit; It is controlled by the water level control unit, and is installed in a pipe located at the rear end of the water treatment facility when the water level of the water treatment facility is adjusted to control the discharge valve so that the fluid is discharged through the pipe when drainage of the fluid is required, a discharge valve control unit for controlling the discharge valve so that the fluid is not discharged when the height is higher than a set height; a pump control unit controlled through the water level control unit and controlling the pump to discharge the fluid of the water treatment facility in an open state of the discharge valve; A fluid discharge check unit for detecting the pressure of the fluid discharged through the conduit to check the discharge of the fluid, and to confirm the discharge of the fluid in a state where the discharge of the fluid is blocked; a water treatment information providing unit for transmitting water level information and flow rate information input to the water level control unit, and water level information of a water treatment facility controlled through the water level control unit, to the integrated remote control management unit; and a self-diagnosis processing unit configured to check the malfunction of the water treatment control unit, transmit a malfunction signal to the integrated remote control management unit, and receive a control signal for resolving the malfunction from the integrated remote control management unit to enable self-operation.

Here, the water level control unit analyzes the data sensed by the water level measurement unit and the drift measurement unit and the malfunction diagnosis of the water level control unit, and transmits the sensed data and the malfunction diagnosis of the water level control unit to the integrated remote control management unit located at a remote location in real time. It is composed of an embedded control device, wherein the embedded control device periodically collects the sensing data in a steady state from the water level measurement unit and the drift measurement unit, and then a reference data generation unit for generating reference data, and the reference data generation unit After learning Support vector machines (SVM) for diagnosing malfunctions of the water level control unit that have been trained and designed in advance based on the reference data generated in Determining a range, inputting the sensing data received from the water level measurement unit and the drift measurement unit to the learned SVM, and determining whether an error occurs in the water level control unit from the range to which the sensing data belongs among the normal range and the error range The malfunction diagnosis of the water level control unit is calculated based on the currently input sensing data through an error determination unit and a fuzzy algorithm, and after comparative analysis with the normal operation data, the current water level control unit is analyzed for malfunction. It is characterized in that it consists of a malfunction diagnosis analysis control unit, and a malfunction signal transmission unit that transmits a malfunction signal to the integrated remote control management unit according to whether the malfunction diagnosis of the current water level control unit analyzed by the malfunction diagnosis analysis control unit is performed.

Here, the water level calculator calculates a first distance value using the ultrasonic signal detected by the first ultrasonic sensor, and calculates a second distance value by using the ultrasonic signal detected by the second ultrasonic detector distance conversion unit; a set distance acquisition unit configured to acquire a first distance value and a second distance value sensed in the same time period by the ultrasonic sensing control unit as one set distance value; and a set distance having the smallest error between the sum of the first and second distance values constituting each set distance value among the plurality of set distance values and the pre-calculated distance value between the first ultrasonic sensor and the ultrasonic reflector and a water level selector configured to select a second distance value configured in the value as the water level.

Here, the flow rate measuring unit is installed at one end of the conduit, the electromotive force detector for measuring the electromotive force generated by the fluid passing through the conduit by forming a magnetic field by the first electromagnet installed at both ends of the conduit; a first fine metal particle emission and recovery unit installed in the pipe, for discharging and recovering fine metal particles using a second electromagnet; a second fine metal particle emission and recovery unit installed in the pipe line and emitting and recovering fine metal particles using a third electromagnet; a flow rate calculation unit for converting the electromotive force value measured through the electromotive force detection unit into a flow rate; and an electromagnet operation control unit for controlling the current supplied to the first electromagnet, the second electromagnet, and the third electromagnet, and controlling the current to be supplied at different timings between the second electromagnet and the third electromagnet characterized in that

Here, the flow rate measuring unit is installed inside the pipeline to position the first fine metal particle emission and recovery unit and the second fine metal particle emission and recovery unit on different points among the upstream end and the downstream end of the pipeline, and the electric rail It characterized in that it further comprises a position exchange unit for mutual position exchange between the first fine metal particle emission and recovery unit and the second fine metal particle emission recovery unit by using.

Here, the electric rail is installed to move the second electromagnet and the third electromagnet, respectively, and the second electromagnet and the third electromagnet are not overlapped with each other when exchanging positions along the inside of the conduit. characterized by being made.

Here, the electromagnet operation control unit controls so that the fine metal particles attached to the electromagnet located at the downstream end of the conduit are released among the second electromagnet and the third electromagnet, and the fine metal particles are recovered to the electromagnet located at the upstream end of the conduit. characterized in that

According to the present invention, it is possible to provide a measurement and control system for remote control management of a water treatment facility capable of integrated control and management at a remote location using an electronic sensor installed in a water treatment facility such as a sewage treatment plant or a water reservoir.

1 is a schematic diagram of a measurement and control system according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a measurement and control system according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a water treatment control unit according to an embodiment of the present invention.
4 is a block diagram showing the configuration of a water level control unit according to an embodiment of the present invention.
5 is a diagram illustrating a water level measurement method of a water level measurement unit according to an embodiment of the present invention.
6 is a block diagram illustrating the configuration of a water level calculator according to an embodiment of the present invention.
7 is a block diagram illustrating the configuration of a flow rate measurement unit according to an embodiment of the present invention.
8 is a view exemplarily showing an installation form of each component included in the flow rate measurement unit according to an embodiment of the present invention.
9 to 11 are diagrams illustrating a flow rate measurement method of a flow rate measurement unit according to an embodiment of the present invention.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings, and the purpose and configuration of the present invention and its features will be better understood through such detailed description.

As shown in FIGS. 1 to 2 , the measurement and control system 1000 for remote control diagnosis of a water treatment facility according to an embodiment of the present invention includes a water treatment control unit 100 , a water level measurement unit 200 , and a flow rate measurement unit 300 . ), the communication unit 400 and the integrated remote control management unit 500 may include at least one.

The water treatment control unit 100 may manage the water level and flow rate information of the water treatment facility, respectively. To this end, the water treatment control unit 100, as shown in FIG. 3, includes a water level measuring filter unit 110, a flow rate measuring filter unit 120, a water level control unit 130, a discharge valve control unit 140, and a pump control unit 150. , the fluid discharge confirmation unit 160 , the water treatment information providing unit 170 , and the self-diagnosis management unit 180 .

The water level measuring filter unit 110 may filter and remove the ultrasonic wave reflected from the structure in the water treatment facility to measure the water level using the ultrasonic wave reflected from the medium from the ultrasonic wave received through the water level measuring unit 200. . More specifically, the water level measurement filter unit 110 is actually reflected in the medium and received by the water level measurement unit 200 in order to set the water level measurement range in advance when measuring the water level at the place where the water level measurement unit 200 is installed. The initial setting unit for measuring the range of the frequency signal reflected by hitting the medium and setting it as an initial value, the water level measuring unit 200 so that the frequency measurement value received through the water level measuring unit 200 can be compared with the initial frequency signal value The initial setting unit by comparing the frequency signal value set by the water level scan unit and the initial setting unit and the received frequency measurement value input through the water level scan unit to read the received frequency reflected after being transmitted through the level scan unit in real time and input it as a frequency measurement value It may include a matching unit for discriminating the receiving frequency reflected by the structure that is a frequency that is out of the frequency signal value set by, and a masking unit for excluding the received frequency measurement value that deviates from the frequency signal value initially set through the matching unit from the receiving frequency, In the present embodiment, the configuration of the water level measuring filter unit 110 is not limited as described above, and various modifications and additions are possible. The water level measurement filter unit 110 ignores the reception frequency reflected by the installed structure, which is a factor of interference in measuring the water level, and uses only the frequency measurement value reflected by the actual medium for water level measurement. accuracy can be increased.

The flow rate measurement filter unit 120 may filter and remove noise included in the voltage detection signal measured by the flow rate measurement unit 300 . More specifically, the flow rate measurement filter unit 120 compensates for a voltage detection signal measured through a magnetic field formed by a plurality of first electromagnets 311 installed in the conduit 10 into one detection signal, thereby the flow rate in the conduit 10 . measurement to increase accuracy. To this end, the flow measurement filter unit 120 integrates the magnetic field divided by each electromagnet 58 and converts the uniform magnetic field detection signal that is the average value of the fluid flow flowing in the conduit 10 to a digital filter method (adder, multiplier) , shift register) is extracted and generated.

To this end, the flow rate measurement filter unit 120 includes a detection signal filter unit that primarily removes noise included in the voltage detection signal measured through the electromotive force detection unit 310 of the flow rate measurement unit 300 using a hardware filter, noise After classifying the voltage detection signal for each magnetic field through the detection signal analysis unit and the detection signal analysis unit that classify the voltage detection signal from which the first electromagnet 311 is installed according to the magnetic field generated according to the installed shape, A detection signal extraction unit that filters a section in which the signal value is kept constant without a change in voltage, a multi-sampling unit that secondarily removes noise included in the detected signal filtered through the detection signal extraction unit using a software filter, It includes a uniform magnetic field signal generation unit that generates a total detection signal that integrates a magnetic field using the detection signal for each section removed secondary and generates a uniform magnetic field detection signal such that the magnetic field is evenly distributed throughout the inside of the pipe through which the fluid flows However, in the present embodiment, the configuration of the flow measurement filter unit 120 is not limited as described above, and various modifications and additions are possible. The flow measurement filter unit 120 integrates the magnetic field formed by being divided into each compartment to generate a uniform magnetic field detection signal, thereby obtaining a correction value such that the magnetic field is evenly distributed throughout the pipeline 10 through which the fluid flows. , can be used to accurately measure the flow rate of the fluid.

The water level control unit 130 may control the water level of the water treatment facility based on the water level information provided through the water level measuring filter unit 110 and the flow rate information provided through the flow rate measuring filter unit 20 .

The discharge valve control unit 140 is controlled by the water level control unit 130, and is installed in the pipe line 10 located at the rear end of the water treatment facility when the water level of the water treatment facility is adjusted. ) to control the discharge valve to be discharged through the

The pump control unit 150 may be controlled by the water level control unit 130 and may control the pump to discharge the fluid of the water treatment facility while the discharge valve is open.

The fluid discharge confirmation unit 160 may detect the pressure of the fluid discharged through the conduit 10 to confirm the discharge of the fluid, and confirm the discharge of the fluid in a state in which the discharge of the fluid is blocked.

The water treatment information providing unit 170, the water level information and flow information input to the water level control unit 130, and the water level information of the water treatment facility controlled through the water level control unit 130 can be transmitted to the integrated remote control management unit 500. have.

The self-diagnosis management unit 180 checks the malfunction of the water treatment control unit 100, transmits a malfunction signal to the integrated remote control management unit 500, and receives a control signal for resolving the malfunction from the integrated remote control management unit 500. make it workable.

The water level measurement unit 200 measures the distances from the upper and lower portions based on the fluid surface of the water treatment facility, measures the water level based on the measured distance, and transmits the measured water level information to the water treatment control unit 130 . can To this end, the water level measuring unit 200 includes at least one of the first ultrasonic sensing unit 210 , the second ultrasonic sensing unit 220 , the ultrasonic reflector 230 , the ultrasonic sensing controller 240 , and the water level calculating unit 250 . may include.

As shown in FIG. 5 , the first ultrasonic sensor 210 may be installed on the water surface to transmit and receive ultrasonic signals to and from the surface of the fluid, and the second ultrasonic sensor 220 is a water treatment facility. It is connected to the bottom surface of the body by a wire 221 to float on the water surface of the fluid by the floating member, and can transmit and receive ultrasonic signals to the bottom surface of the water treatment facility. That is, the first ultrasonic sensor 210 is used as a means for measuring the distance by transmitting and receiving ultrasonic signals from the water surface to the water surface, and the second ultrasonic sensor 220 measures the distance from the water surface to the floor of the water treatment facility. It can be used as a means for

As shown in FIG. 5 , the ultrasonic reflector 230 is installed on the bottom of the water treatment facility to more effectively reflect the ultrasonic signal transmitted from the second ultrasonic detector 210 to return to the second ultrasonic detector 210 . It can help you get going. The ultrasonic reflector 230 preferably includes a material having a high reflectance of an ultrasonic signal, but in this embodiment, a specific material of the ultrasonic reflector 230 is not limited.

The ultrasonic sensing controller 240 may control the first ultrasonic sensing unit 210 and the second ultrasonic sensing unit 220 to be simultaneously operated in units of preset time intervals. For example, the first ultrasonic sensing unit 210 and the second ultrasonic sensing unit 220 may be controlled to simultaneously transmit and receive ultrasonic signals every 2 seconds, but such a time interval is only an example. The operation of the first ultrasonic sensing unit 210 and the second ultrasonic sensing unit 220 may be simultaneously controlled by being set to have a time interval or set to have a longer time interval.

As shown in FIG. 4, the water level control unit 130 analyzes the data sensed by the water level measurement unit and the drift measurement unit and the malfunction diagnosis of the water level control unit 130, and the sensing data toward the integrated remote control management unit located at a remote place, It may be composed of an embedded control device that transmits the malfunction diagnosis of the water level control unit in real time.

The embedded control device may include a reference data generation unit 131 , an error occurrence determination unit 132 , a malfunction diagnosis analysis control unit 133 , and a malfunction signal transmission unit 134 .

The reference data generation unit may generate reference data after periodically collecting the sensing data in a steady state from the water level measurement unit and the drift measurement unit.

The error occurrence determination unit 132 learns support vector machines (SVM) for diagnosing malfunctions of the water level control unit that have been previously learned and designed based on the reference data generated by the reference data generation unit, and then the water level through the learned SVM. Determine the normal range and error range of the data sensed by the measuring unit and the drift measuring unit, input the sensed data received from the water level measuring unit and the drift measuring unit to the learned SVM, and the sensing of the normal range and the error range From the range to which data belongs, it may be determined whether an error has occurred in the water level control unit.

The malfunction diagnosis analysis control unit 133 calculates the malfunction diagnosis of the water level control unit based on the currently input sensing data through a fuzzy algorithm, and compares and analyzes it with the normal operation data, and then determines whether the current water level control unit malfunctions. can be analyzed.

The malfunction signal transmission unit 134 may transmit a malfunction signal to the integrated remote control management unit according to whether the malfunction diagnosis of the current water level control unit analyzed by the malfunction diagnosis analysis control unit is performed.

As shown in FIG. 5 , the water level calculator 250 uses a first distance value d1 using the ultrasonic signal sensed by the first ultrasonic detector 210 and the second ultrasonic detector 220 . An optimal second distance value d2 based on a second distance value d2 using the detected ultrasonic signal and a pre-calculated distance value h between the first ultrasonic sensor 210 and the ultrasonic reflector 230 . can be calculated as the water level. To this end, the water level calculation unit 250 may include at least one of a distance converting unit 251 , a set distance obtaining unit 252 , and a water level selecting unit 253 as shown in FIG. 6 .

The distance converter 251 calculates a first distance value d1 using the ultrasonic signal sensed by the first ultrasonic detector 210 , and the ultrasonic wave sensed by the second ultrasonic detector 220 . The second distance value d2 may be calculated using the signal. That is, after calculating the time (s1) at which the ultrasound signal is transmitted and returned through the first ultrasound sensor 210, the calculated time (s1) is multiplied by the velocity (v) of the ultrasound signal to obtain a first distance value (d1). ) can be calculated, and after calculating the second distance value d2, the time s2 at which the ultrasonic signal is transmitted and returned through the second ultrasonic sensing unit 220 is calculated, the ultrasonic wave occurs at the calculated time s2. It can be obtained by multiplying the speed (v) of the signal.

The set distance acquirer 252 may acquire the first distance value d1 and the second distance value d2 sensed in the same time period through the ultrasonic sensing controller 240 as one set distance value. More specifically, the ultrasonic sensing control unit 240 adds timing information to a control signal for controlling the operation of the first ultrasonic sensing unit 210 and the second ultrasonic sensing unit 220, and matching each timing information The first distance value d1 and the second distance value d2 obtained by each of the first ultrasonic sensing unit 210 and the second ultrasonic sensing unit 220 are defined as one set distance value or set distance information. can do. The set distance value or set distance information is accumulated for a preset time, and the water level selector 253 may calculate the water level from the accumulated set distance value or set distance information.

The water level selector 253 is configured to select a first distance value (d1) and a second distance value (d2) constituting each set distance value among a plurality of set distance values (or set distance information) accumulated for a predetermined time. The second distance value d2 configured in the set distance value having the smallest error between the sum and the pre-calculated distance value h between the first ultrasonic sensor 210 and the ultrasonic reflector 230 may be selected as the water level. . In general, after calculating the first distance value (d1), the water level of the water treatment facility is measured by subtracting the first distance value (d1) from the height of the water treatment facility. It is difficult to calculate. In this embodiment, in order to solve this problem, the distance from the top of the water surface to the water surface and the distance from the water surface to the bottom are calculated, respectively, and then the water level value when the sum of these is closest to the sum of the total sensing distances is the final water level value. to enable more precise water level calculation. For example, multiple set distance values are 'measurement timing A, d1(5.45)+d2(4.05)=9.5', 'measurement timing B, d1(5.5)+d2(4.25)=9.75' for each timing, ' Assuming that measurement timing C, d1(5.6)+d2(3.95)=9.55' and h is 9.8, 'measurement timing B, d1(5.5)+d2(4.25)=9.75' is the best for h(9.8). Since it is approximate, the d2(4.25) value at this time can be calculated as the water level at the measurement timing B.

The flow rate measurement unit 300 discharges and recovers the conductive material to the fluid supplied to the water treatment facility, measures the flow rate by measuring the change in voltage generated according to the flow of the fluid including the conductive material, and the measured flow rate information may be transmitted to the water treatment control unit 100 . To this end, the flow rate measurement unit 300 includes an electromotive force detection unit 310 , a first fine metal particle emission recovery unit 320 , a second fine metal particle emission recovery unit 330 , and a flow rate calculation unit, as shown in FIG. 7 . 340 , may include at least one of an electromagnet operation control unit 350 , and a position exchange unit 360 .

The electromotive force detection unit 310 is installed at one end of the conduit 10, and forms a magnetic field by the first electromagnets 311 installed at both ends of the conduit 10, and is generated by the fluid passing through the conduit 10. The electromotive force (e) can be measured. The electromotive force detection unit 310 is a device for measuring the flow rate using electromagnetic induction, and as shown in FIG. 8 , a magnetic field is created perpendicular to the non-magnetic tube, and a conductive fluid is flowed into the tube 10 by electromagnetic induction. An electromotive force (e) proportional to the flow rate is generated at the electrode orthogonal to , and the flow rate can be measured from the generated electromotive force (e). Flow rate measurement using electromotive force has no pressure loss in the pipeline 10 and is not affected by the mixing of solids or corrosion. After temporarily discharging and recovering the fine metal particles within the flow measurement section of the pipeline 10 through the particle emission and recovery units 320 and 330, return to the original position to perform the operation of discharging and recovering again, A more detailed description will be given later.

When a conductive fluid flows in the pipeline 10 at a flow rate υ, an electromotive force e is generated in the electrode 312 installed in the pipeline 10, where e is proportional to the average flow rate, so if e is amplified and recorded, the change in flow rate is recorded. It can be continuously known, and the method of calculating the electromotive force e may be according to the following equation.

[Equation]

e=BdυХ10-8

Here, e is the electromotive force [V], B is the magnetic flux density [G], d is the inner diameter of the pipe 10 [cm], υ means the flow rate [cm/s].

The first fine metal particle emission and recovery unit 320 includes a second electromagnet 321 installed inside the conduit 10 as shown in FIG. 8 , and the fine metal particle using the second electromagnet 321 . can be emitted and recovered, and the second fine metal particle emission and recovery unit 330 includes a third electromagnet 331 installed in the pipe 10, and uses the third electromagnet 331 to collect fine metal. Particles can be released and recovered. The second electromagnet 321 and the third electromagnet 331 may be installed in a shape, structure, and position that do not overlap or interfere with each other when moving along the longitudinal direction of the conduit 10 , and in this embodiment, the second Various changes are possible in a line that does not physically interfere with each other when the electromagnet 321 and the third electromagnet 331 move in a straight line in the longitudinal direction in the conduit 10 without limiting the specific shape, structure, and installation location.

The flow rate calculator 340 may convert the electromotive force value (e) measured by the electromotive force detector 310 into a flow rate and calculate it. The flow rate calculation unit 340 manages the data transmission/reception of the electromotive force detection unit 310, and the flow rate control unit that manages to calculate the flow rate of the fluid using the measured voltage detection signal, voltage detection by the electromotive force detection unit 310 A detection signal receiving unit for receiving a signal, an excitation current supply unit for supplying an excitation current to the first electromagnet 311 forming a magnetic field so that a magnetic field is formed in the conduit 10, and a voltage detection signal measured by the electromotive force detection unit 310 Controls the function operation of the magnetic field signal compensator and flow rate converter to correct the error range of the electromotive force detection unit 310 due to drift or turbulence of the fluid when calculating the flow rate by the flow rate calculating unit and the flow rate calculating unit using operation signal input unit, a measurement information display unit that displays the flow information of the measured fluid to the outside, a self-diagnosis unit that detects and informs the outside of the device abnormality of the flow rate measurement unit in real time, and self-corrects, an electromotive force detection unit 310 and the flow rate It may include a data storage unit for storing various data generated through the conversion unit, but in this embodiment, the configuration of the flow rate calculation unit 340 is not limited as described above, and may be modified and added in various forms. The flow rate calculator 340 may be integrally configured with the electromotive force detector 310 , and may be installed separately from each other.

The electromagnet operation control unit 350 controls the current supplied to the first electromagnet 311 , the second electromagnet 321 and the third electromagnet 331 , but the second electromagnet 321 and the third electromagnet 331 ) The liver can control the current to be supplied at different timings. That is, the electromagnet operation control unit 350 controls so that the fine metal particles attached to the electromagnet located at the downstream end of the conduit 10 among the second electromagnet 321 and the third electromagnet 331 are emitted to the electromagnet located at the upstream end of the conduit. It is possible to control the fine metal particles to be recovered, and a more detailed description thereof will be described later in more detail through the operation description of the position exchange unit 360 .

The position exchange unit 360 is installed inside the conduit 10 as shown in FIGS. 9 to 11 , a first fine metal particle discharge and recovery unit 320 and a second fine metal particle discharge and recovery unit 330 . is located on different points of the upstream end and the downstream end of the conduit 10, and the first and second electric rails 361 and 362 are used to recover the first fine metal particle discharge unit 320 and the second fine metal The mutual position exchange between the particle emission and recovery units 330 may be made.

If the description of the operation of the position exchange unit 360 is described in relation to the operations of the first to third electromagnets 311 , 321 , 331 , as shown in FIG. 9 , the third electromagnet 331 located upstream operates Thus, in a state in which the fine metal particles are attached to the third electromagnet 331, the current supplied to the third electromagnet 331 is turned off so that the fine metal particles are discharged along the fluid, the fluid becomes conductive and the electromotive force detection unit ( It is possible to detect the electromotive force through the 310, and for this purpose, the electric current is supplied to the first electromagnet 311 so that the electromotive force detection unit 310 is operated, and at the same time, current is also supplied to the second electromagnet 321 to follow the fluid. ) so that the fine metal particles that have passed through can be recovered again.

After the electromotive force detection is completed, as shown in FIG. 10 , the second electromagnet 321 located at the downstream end by the first electric rail 321 moves to the upstream end, and by the second electric rail 331 . The third electromagnet 331 located at the upstream end can move to the downstream end, and at this time, the second and third electromagnets 321 and 331 are formed in a form that does not overlap each other when exchanging positions along the inside of the pipe. , there is no physical interference with each other during movement.

Afterwards, as shown in FIG. 11, when the second and third electromagnets 321 and 331 are positioned opposite to the positions shown in FIG. The electromotive force detector 310 operates while operating to emit the particles, and at this time, the third electromagnet 331 operates at the downstream end to recover the fine metal particles in the fluid that have passed the electromotive force detector 310, and this operation is an electromotive force Detection may be repeated.

The communication unit 400 may transmit water level information and flow rate information managed through the water treatment control unit 100 to the integrated remote control management unit 500 . At this time, the communication method may be a wired and/or wireless method, and may transmit water level information and flow rate information to the outside through various Internet communication networks such as 3G, 4G, 5G, LTE, and may receive various control signals from the outside. have.

The integrated remote control management unit 500 receives water level information and flow rate information from the water treatment control unit 100 through the communication unit 400, and through remote control of a plurality of water treatment control units 100 installed in various water treatment facilities, respectively. The water level and flow condition of water treatment facilities can be managed in an integrated way.

The embodiments described above are merely illustrative of preferred embodiments of the present invention and are not limited to these embodiments, and various modifications and variations by those skilled in the art within the spirit and claims of the present invention It will be said that this can be done, and it will fall within the technical scope of the present invention.

1000: instrumentation control system
100: water treatment control unit
110: water level measurement filter unit
120: flow measurement filter unit
130: water level control
140: discharge valve control unit
150: pump control unit
160: fluid discharge confirmation unit
170: water treatment information providing unit
180: self-diagnosis management unit
200: water level measurement unit
210: first ultrasonic sensing unit
220: second ultrasonic sensing unit
221: wire
230: ultrasonic reflector
240: ultrasonic sensing control unit
250: water level calculator
251: distance conversion unit
252: set distance acquisition unit
253: water level selection unit
300: flow measurement unit
310: electromotive force detection unit
311: first electromagnet
312: electrode
320: first fine metal particle emission and recovery unit
321: second electromagnet
330: second fine metal particle emission and recovery unit
331: third electromagnet
340: flow calculation unit
350: electromagnet operation control unit
360: position exchange
361: first electric rail
362: second electric rail
400: communication department
500: integrated remote control management unit
10: pipeline

Claims (3)

a water treatment control unit that manages water level and flow rate information of water treatment facilities, respectively;
a water level measurement unit for measuring the distance from the upper and lower portions based on the fluid surface of the water treatment facility, measuring the water level based on the measured distance, and transmitting the measured water level information to the water treatment control unit;
Discharge and recovery of a conductive material to the fluid supplied to the water treatment facility, measure the flow rate by measuring the change in voltage generated according to the flow of the fluid containing the conductive material, and transmit the measured flow rate information to the water treatment control unit. wealth;
a communication unit for transmitting water level information and flow rate information managed through the water treatment control unit to the outside; and
An integrated remote control management unit that receives water level information and flow rate information from the water treatment control unit through the communication unit, and manages the water level and flow rate state of water treatment facilities through remote control of a plurality of water treatment control units;
The water level measuring unit may include: a first ultrasonic sensing unit installed on the surface of the water surface to transmit and receive ultrasound signals to and from the water surface; a second ultrasonic sensing unit connected to the bottom of the water treatment facility with a wire, floating on the water surface by the floating member, and transmitting and receiving ultrasonic signals to and from the bottom of the water treatment facility; Ultrasonic reflector installed on the bottom of the water treatment facility; an ultrasonic sensing control unit for controlling the first ultrasonic sensing unit and the second ultrasonic sensing unit to be simultaneously operated at preset time intervals; and a first distance value using an ultrasonic signal detected by the first ultrasonic detector, a second distance value using an ultrasonic signal detected by the second ultrasonic detector, and the first ultrasonic detector and the ultrasonic wave calculated in advance It includes; a water level calculator that calculates an optimal second distance value as the water level based on the distance value between the reflectors;
The flow measurement unit,
an electromotive force detector installed at one end of the conduit and measuring the electromotive force generated by the fluid passing through the conduit by forming a magnetic field by the first electromagnets installed at both ends of the conduit;
a first fine metal particle emission and recovery unit installed in the pipe, for discharging and recovering fine metal particles using a second electromagnet;
a second fine metal particle emission and recovery unit installed in the pipe line and configured to discharge and recover fine metal particles using a third electromagnet;
a flow rate calculation unit for converting the electromotive force value measured through the electromotive force detection unit into a flow rate; and
Control the current supplied to the first electromagnet, the second electromagnet, and the third electromagnet, wherein the second electromagnet and the third electromagnet include an electromagnet operation control unit for controlling the current to be supplied at different timings A measurement and control system for remote control management of water treatment facilities, characterized by its features. According to claim 1,
The flow measurement unit,
Installed inside the pipeline, the first fine metal particle emission and recovery unit and the second fine metal particle emission and recovery unit are located on different points between the upstream end and the downstream end of the pipeline, and the first fine metal particles using an electric rail The measurement and control system for remote control management of a water treatment facility, characterized in that it further comprises a position exchange unit for mutual position exchange between the emission recovery unit and the second fine metal particle emission recovery unit. 3. The method of claim 2,
The electric rail is
installed to move the second electromagnet and the third electromagnet, respectively;
The second electromagnet and the third electromagnet are
A measurement and control system for remote control management of water treatment facilities, characterized in that they are not overlapped with each other when exchanging positions along the inside of the pipeline.

Images