KR200321881Y1 - Apparatus for data duplicating in a medium and small-sized waterworks and sewerage - Google Patents

Abstract

The present invention stores the measurement data in a memory card provided separately when transmission failure occurs when the measurement data obtained by measuring in small and medium water and sewage is transmitted remotely through the Internet network, and when the state can be transmitted online later, The present invention relates to a data redundancy device in a small and medium-sized water and sewage measurement control system for transmitting measurement data. The present invention provides an input / output card unit for interfacing data with a measurement unit for measuring the flow rate, water quality, water level, pressure, and temperature of the water supply and sewage system. After processing the measurement data acquired from the card unit appropriately and outputs the communication measurement data, and in the event of communication failure, the central processing unit for outputting the measurement data as storage measurement data, the communication measurement data output from the central processing unit communication Internet network after processing according to format The remote control unit transmits to the control computer located remotely, and the control data transmitted from the control computer side is received through the Internet network and transmitted to the central processing unit. Communication failure monitoring unit for transmitting to the central processing unit, implements a data redundancy device as a memory card for storing the stored measurement data output from the central processing unit.

Description

Apparatus for data duplicating in a medium and small-sized waterworks and sewerage

The present invention relates to data duplication in small and medium sized sewage and sewage measurement control system. Especially, when transmission failure occurs when the measurement data obtained by measuring in small and medium sized sewage and sewage is transmitted through the internet network, the measurement data is stored in a separate memory card. The present invention relates to a data redundancy apparatus in a small and medium-sized water and sewage measurement and control system that transmits the measurement data stored in the memory card when it becomes available for on-line transmission.

In general, one of the closest resources in life is water, a water resource that is lifelike. This water makes it possible for all living things (trees, plants, animals) on the earth to live, and it is a clean environment for human beings. It allows you to live your life under

Water is basically an essential resource for making food, washing utensils and soiled clothing, cleaning rooms and offices, and further producing goods.

The water resources used in such many places are not indefinitely, but are limited resources. To continue living in a clean environment, these water resources must also minimize their pollution.

In particular, the water used in the early stages of industrialization and industrialization was naturally purified and used as it flowed down the river.

However, due to the accelerating pace of industrialization and the increase of domestic wastewater, natural cleansing is becoming impossible beyond the limit that can naturally purify polluted water.

Therefore, in recent years, purification has been carried out by an artificial method, and the condition of water is always measured to prevent it from being polluted.In the case of contamination, the cause of the contamination is found and removed to prevent further contamination of water in the future. have.

Here, the conventional measuring device that is installed on the site of water and sewage to measure the water quality, water level, flow rate, low water amount and the like is a device for measuring information.

1 is a block diagram showing the configuration of a general water and sewage measurement and control device.

As shown therein, various measurement data generated from the measurement unit 10 composed of the flow meter 11, the water quality meter 12, the water level meter 13, the pressure gauge 14, the thermometer 15, and the like, which are installed in the field, are prepared. 1 is collected by the remote device 20.

The measurement data collected by the first remote device 20 is transmitted to the second remote device 30, input to the control computer 40, and displayed through the graphic panel 50.

Then, the monitor determines the state of the flow rate, water quality, water level, pressure, temperature, etc. by viewing the measurement data displayed on the graphic panel 50.

The first remote device 20 automatically controls the measurement unit 10 in response to a control signal transmitted from the control computer 40.

However, such a general water and sewage measurement and control device is a management system for measuring and controlling state values such as water quality and flow rate of a large amount of water and sewage, and it is inappropriate to apply such a management system to water and sewage on a small and medium scale.

Therefore, in order to supplement the shortcomings of the general large-scale water and sewage measurement and control system, a small and medium scale water and sewage measurement and control device has been proposed.

Figure 2 is a block diagram showing the configuration of a conventional small and medium water and sewage measurement and control device.

As shown in the drawing, the measurement unit 10 is largely comprised of a data processing unit 60, an internet network 70, and a control computer 40.

The measurement unit 10 includes a flow meter 11 for measuring the flow rate of water and sewage, a water meter 12 for measuring the water quality, a water gauge 13 for measuring the water level, a pressure gauge 14 for measuring the pressure, And a thermometer 15 for measuring the temperature.

In addition, as shown in FIG. 3, the data processing unit 60 includes a DC power supply unit 61, an input / output card unit 62, a central processing unit 63, and a serial communication unit 64.

In addition, the input / output card section 62 includes an analog input card section 62a, a digital input card section 62b, a pulse input card section 63c, an analog output card section 62d, and a digital output card section. 62e.

Referring to the operation of the conventional small and medium water and sewage measurement and control device configured as described in detail as follows.

First, the state values of the flow rate, water quality, water level, pressure, and temperature obtained by the measurement in each measuring instrument (flow meter, water meter, water gauge, pressure gauge, thermometer) in the measuring unit 10 are measured using the analog input card unit (in the data processing unit 60). It is input as an analog signal of DC 1-5V, 4-20 mA through 62a), or as a voltage-free contact signal through the digital input card part 62b and the pulse input card part 62c.

Then, the central processing unit 63 properly processes the signals acquired by the analog input card unit 62a, the digital input card unit 62b, and the pulse input card unit 62c, respectively, and transfers them to the serial communication unit 64. do.

The serial communication unit 64 converts it to the signal roll communication format transmitted from the central processing unit 63 and transmits it to the Internet network 70. The measurement data via the Internet network 70 is controlled by a control computer ( 40) to be monitored.

The control signal transmitted from the control computer 40 is transmitted to the central processing unit 63 via the internet network 70 and the serial communication unit 64, and the central processing unit 63 analyzes the transmitted data and then performs analogue. The control data is transmitted to the measurement unit 10 through the output card unit 62d and the digital output card unit 62e, so that the measurement control of the small and medium water supply and drainage can be performed accurately.

However, the conventional small and medium water and sewage measurement and control device operating as described above can remotely process data generated in the small and medium water and sewage site using the Internet network, but in case of communication failure, the measurement data is lost until the failure is recovered. There was a disadvantage.

In other words, it is possible to transmit the measurement data generated at the small and medium sized water and sewage site to the remote control computer in real time through the internet network, but in case of a communication failure, the measurement data cannot be transmitted because the measurement data is discarded. Will be done.

Therefore, the present invention is proposed to solve all the problems occurring in the conventional small and medium water and sewage measurement and control device as described above,

An object of the present invention is to store the measurement data in a memory card provided separately when transmission failure occurs when the measurement data obtained by measuring in the small and medium water and sewage remotely through the Internet network, and when the online transmission is possible later, the memory card It is to provide a data redundancy device in a small and medium-sized water and sewage measurement and control system for transmitting the measurement data stored in the system.

"Data redundancy apparatus in the small and medium-sized water and sewage measurement and control system" according to the present invention for achieving the above object,

An input / output card unit for interfacing data with a measurement unit for measuring the flow rate, water quality, water level, pressure, and temperature of the water and sewage system;

A central processing unit for appropriately processing the measurement data acquired by the input / output card unit and outputting it as communication measurement data, and outputting the measurement data as storage measurement data in the event of communication failure;

After processing the measurement data for communication output from the central processing unit in accordance with the communication format and transmits to the control computer located remotely through the Internet network, the control data transmitted from the control computer side is received through the Internet network to the central A serial communication unit for transmitting to the processing apparatus;

A communication failure monitoring unit for monitoring a communication failure of the serial communication unit and transferring the monitoring result to the central processing unit;

And a memory card for storing measurement data for storage output from the central processing unit.

1 is a block diagram showing the configuration of a general water and sewage measurement and control device,

Figure 2 is a block diagram showing the configuration of a conventional small and medium water and sewage measurement and control device,

3 is a block diagram illustrating an exemplary embodiment of a data processor of FIG. 2;

Figure 4 is a block diagram showing the configuration of the data redundancy apparatus in the small and medium water and sewage measurement and control system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ..... Measurement

200 ..... I / O card section

300 ..... Central Processing Unit

400 ..... serial communication unit

500 ..... Internet

700 ..... Communication failure monitor

800 ..... memory card

900 ..... Control Computer

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

Figure 4 is a block diagram showing the configuration of the data redundancy apparatus in the small and medium water and sewage measurement and control system according to the present invention.

As shown in the figure, the measuring unit 100 for measuring the flow rate, water quality, water level, pressure, temperature of the water supply and sewage, the input and output card unit 200 for interfacing the data with the measuring unit 100, the input and output card unit 200 And the central processing unit 300 and the central processing unit 300 for outputting the measured measurement data as communication measurement data, and outputting the measurement data as storage measurement data in case of communication failure. After processing the measurement data for communication in accordance with the communication format and transmits to the control computer 900 remotely located through the Internet network 500, the control data transmitted from the control computer 900 to the Internet network 500 Serial communication unit 400 received through and transmitted to the central processing unit 300, and monitors the communication failure of the serial communication unit 400 and the communication to pass the monitoring results to the central processing unit 300 Consists of the failure monitoring unit 700, a memory card 800, and a direct current power source 600 that supplies a drive power supply for storing stores calibration data for output from said central processing unit (300).

In the above-described input and output card unit 200, the analog input card unit 210, the digital input card unit 220, the pulse input card unit 230, and the analog output card unit 240 as in the prior art And a digital output card unit 250.

The operation of the data redundancy device in the small and medium-sized water and sewage measurement control system according to the present invention configured as described above will be described in more detail.

First, the DC power supply unit 600 supplies driving power to the central processing unit 300, and also supplies driving power to a required block.

When the system is activated by the power supply as is well known, the measurement unit 100 measures the state values of the flow rate, water quality, water level, pressure, and temperature obtained by the measurement by each measuring instrument (flow meter, water meter, water gauge, pressure gauge, thermometer). Transfer to the input and output card unit 200.

After measuring the signal output from the analog input card unit 210, digital input card unit 220, pulse input card unit 230 in the input / output card unit 200 appropriately and transmits to the central processing unit 300. .

The central processing unit 300 transmits the transmitted measurement data to the serial communication unit 400, and the serial communication unit 400 converts the transmission measurement data according to a communication format and then transmits the measurement data to the Internet network 500.

The measurement data via the Internet network 500 is transmitted to the connected control computer 900, and the control computer 900 receives and monitors it.

In addition, the control computer 900 transmits the control data to the Internet network 500, the control data via the Internet network 500 is transmitted to the central processing unit 300 via the serial communication unit 400.

Then, the central processing unit 300 analyzes the transmitted data and transmits control data through the analog output card unit 240 and the digital output card unit 250 in the input / output card unit 200 to the measurement unit 100. The control data is transmitted.

The operation of the small and medium-sized water and sewage measurement and control device as described above is an operation in a state where communication is normally performed.

Meanwhile, when the system is activated, the communication failure monitoring unit 700 monitors the state of the serial communication unit 400 and transmits the monitoring result to the central processing unit 300.

Here, the communication failure monitoring unit 700 monitors the communication failure by monitoring the serial communication unit 400 in a polling manner. That is, a signal for monitoring the communication status is transmitted to the serial communication unit 400 at regular intervals, and when a response is normally generated from the serial communication unit 400, the communication is normally determined, and the determination value is determined by interrupting the central processing unit 300. To pass). Unlike this, a signal for monitoring a communication state is transmitted to the serial communication unit 400 at a predetermined period. If there is no response from the serial communication unit 400, it is determined that a communication failure has occurred, and the determination value is determined by interrupting the central processing unit 300. To pass on.

The central processing unit 300 searches for the output signal of the communication failure monitoring unit 700, and if it is determined that the communication failure, immediately stops transmitting data to the serial communication unit 400, and transfers it from the input / output card unit 200. In order to store the measured data is transferred to the memory card (800).

Then, the memory card 800 stores the measurement data output from the CPU 300. That is, redundancy of measurement data is realized by transmitting the measurement data in real time or storing it in a memory.

This prevents the loss of measurement data generated during communication failure.

Even while the measurement data is stored in the memory card 800 in the manner as is well known, the communication failure monitoring unit 700 continuously polls the serial communication unit 400 and checks the status. In the process, the serial communication unit 400 When the communication failure of the) is released and the response normally occurs, the central processing unit 300 is notified that the communication is normal through an interrupt.

The central processing unit 300 transmits the measurement data to the serial communication unit 400 again when a signal indicating that the communication is normal from the communication failure monitoring unit 700 while the measurement data is stored in the memory card 800. Measurement data is transmitted to the control computer 900.

In addition, the measurement data stored in the memory card 800 is extracted at an appropriate time and transmitted to the control computer 900 through the serial communication unit 400.

This prevents the loss of the measurement data even in the case of communication failure.

According to the present invention described above, in the case of transmitting the data measured in the small and medium small water supply and sewage field to the remote management system through the Internet network, even if a communication failure occurs to store the measurement data generated when the communication failure in a separate memory card By implementing a data redundancy device, it is possible to prevent loss of measurement data in case of communication failure.

In addition, it is possible to prevent the loss of measurement data in the event of communication failure, thereby improving the safety of the system.

Claims (2)

In the small and medium water and sewage measurement control system, An input / output card unit 200 for interfacing data with a measurement unit 100 for measuring the flow rate, water quality, water level, pressure, and temperature of the water and sewage system; A central processing unit (300) for appropriately processing the measurement data acquired by the input / output card unit (200) and outputting it as communication measurement data, and outputting the measurement data as storage measurement data in the event of communication failure; After processing the measurement data for communication output from the central processing unit 3000 in accordance with the communication format and transmitted to the control computer 900 located remotely through the Internet network 500, the control transmitted from the control computer 900 side A serial communication unit 400 receiving data through the Internet network 500 and transferring the data to the central processing unit 300; A communication failure monitoring unit 700 which monitors whether the serial communication unit 400 has a communication failure and transmits the monitoring result to the central processing unit 300; Data duplication apparatus in the small and medium water supply and sewage measurement and control system, characterized in that it comprises a memory card for storing the measurement data for storage output from the central processing unit (300). The communication failure monitoring unit 700 transmits a signal for monitoring a communication state to the serial communication unit 400 at regular intervals, and when the response is normally generated from the serial communication unit 400, the communication is normally determined. And, if there is no response from the serial communication unit 400, data duplication apparatus in the small and medium water and sewage measurement and control system, characterized in that for monitoring the communication failure in a polling method that determines that a failure in communication.