KR20150056168A

KR20150056168A - Terminal unit for mornitoring pipe

Info

Publication number: KR20150056168A
Application number: KR1020130138818A
Authority: KR
Inventors: 이재민; 최성태
Original assignee: 서울도시가스 주식회사
Priority date: 2013-11-15
Filing date: 2013-11-15
Publication date: 2015-05-26

Abstract

The present invention relates to a terminal for which a central operation part monitors conditions of pipes embedded under the ground. The terminal comprises: a measurement unit measuring conditions of pipes; a storage storing pipe condition information measured by the measurement unit; a communication unit communicating data with the central operation part; and a central control unit transmitting pipe condition information measured by the measurement unit by using the communication unit. Accordingly, the central operation part monitors various condition information of underground pipes collected through the terminal in real time.

Description

TERMINAL UNIT FOR MORNITORING PIPE

The present invention relates to a terminal for monitoring piping, and more particularly, to a terminal for monitoring piping, and more particularly, to a system for monitoring various conditions of a gas or a water pipe embedded in an underground, To the central control unit in a batch manner.

In the case of pipelines buried underground, in particular, in the case of gas pipelines, there is a risk of breakage or flooding due to external forces such as external impact, and continuous monitoring is required.

Also, such a piping is subjected to a method potential for the purpose of corrosion prevention, and a current for anticorrosion is flowed. Such a method current also needs to be continuously monitored to operate within a desired predetermined range.

However, in order to monitor various conditions and conditions of the piping, there is no terminal for monitoring these pipes in the underground piping, especially the valve portion. In order to monitor the condition and conditions of the piping, It was common to monitor the equipment for direct monitoring by putting it underground.

In general, gas leakage is the most important problem in gas piping, and related technologies for gas detection and automatic opening / closing valves for mechanical and electronic systems have been developed and introduced in the field.

For example, there is a comprehensive safety management system and a gas leak recognition method (Application No. 1995-0017268) of a gas user facility, and the technology relating to the gas detection and the valve shutoff of the leaked gas is infinitely Many of the detailed explanations are omitted.

In addition, the monitoring of the method current is also a very important problem. As related technology, there is a method called "Method detection system (Application No. 10-2005-0100999, hereinafter referred to as" Prior art 1 "), (Hereinafter referred to as " Prior Art 2 "), and the like. These prior arts 1 and 2, however, To the underground, the monitoring device is buried underground, and the network remains connected to the level.

Techniques such as the prior arts 1 and 2 have limited information on various states buried in the basement to only the method current, which is not suitable for monitoring buried pipelines requiring various information.

The present invention provides a monitoring terminal capable of providing information on various states of piping embedded in a basement, and ii) a terminal for monitoring To monitor in real time the information provided by the central control unit.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

A piping monitoring terminal according to the present invention has the following means for solving the above-mentioned problems to be solved.

A piping monitoring terminal according to the present invention is a terminal for remotely monitoring the piping status buried in a basement in a central control unit, comprising: a measuring unit for measuring the piping condition; A storage for storing the pipe state information measured by the measurement unit; A communication unit for performing data communication with the central control unit; And a central control unit for transmitting the pipe state information measured by the measurement unit to the central control unit using the communication unit.

The measuring unit of the piping monitoring terminal according to the present invention may further include: a current sensor for measuring a method current of the pipe; A voltage sensor for measuring a system voltage of the pipe; A leakage sensor for sensing a fluid leaking from the pipe; And a water level sensor for sensing whether the pipe is immersed in water.

The leakage sensor of the piping monitoring terminal according to the present invention may include a gas discharge sensor for sensing a gas flowing out from the pipe.

The measuring unit of the piping monitoring terminal according to the present invention may include an impact sensor positioned in the pipe and sensing an external impact applied to the pipe.

The impact sensing sensor of the pipe monitoring terminal according to the present invention may include a vibration sensor positioned in the pipe and measuring vibration applied to the pipe.

The measurement unit of the piping monitoring terminal according to the present invention may include a noise sensor disposed in the pipe and measuring noise transmitted to the pipe.

The measuring unit of the piping monitoring terminal according to the present invention may include a pressure sensor for measuring an external pressure applied to the piping.

The storage of the piping monitoring terminal according to the present invention records a normal table describing standard conditions of the piping state and when the piping state deviates from the standard conditions of the normal table, Is set to the event mode.

The pipeline monitoring terminal according to the present invention further includes an alarm generating unit for notifying that the piping condition is abnormal when the piping condition is set to the event mode, And transmits the generated alarm to the central control unit.

The central control unit of the piping monitoring terminal according to the present invention may log the information on the piping state measured by the measuring unit at predetermined intervals and record the piping state information in the storage.

The measuring unit of the piping monitoring terminal according to the present invention may include a temperature sensor for sensing a temperature inside the piping or the piping monitoring terminal.

The communication unit of the piping monitoring terminal according to the present invention may perform data communication with the central control unit in a CDMA system.

The pipe monitoring terminal according to the present invention may further include a shutoff valve located inside the piping to shut off the flow of the fluid flowing in the piping. When the piping condition is out of the standard conditions of the normal table, And the central control unit controls the valve to block the flow of the fluid inside the pipe.

The measuring unit of the pipe monitoring terminal according to the present invention may include an internal pressure sensor for measuring a pressure of the fluid existing in the pipe.

The central control unit of the piping monitoring terminal according to the present invention controls the power supply to the measurement unit and the communication unit only during the predetermined period so that the measurement unit and the communication unit are operated every predetermined cycle have.

The pipe monitoring terminal according to the present invention having the above-described configuration has the following effects.

First, it provides the effect of collecting various status information of pipes embedded in the underground through one terminal.

Second, it provides the effect that the central control unit can monitor the status information of the underground pipe collected through the terminal in real time.

Thirdly, the terminal can be monitored only for a predetermined period, thereby extending the battery life of the terminal buried underground.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

FIG. 1 is a conceptual diagram showing that a pipe monitoring terminal according to the present invention is disposed in a pipe buried underground, and performs data communication with a central control unit.
FIG. 2 is a perspective view and block diagram illustrating the respective components of a piping monitoring terminal according to a preferred embodiment of the present invention.
FIG. 3 is a block diagram illustrating each configuration of a piping monitoring terminal according to a preferred embodiment of the present invention.
4 is a side view showing a piping monitoring terminal and its components installed around a valve of a piping according to a preferred embodiment of the present invention.

The pipe monitoring terminal according to the present invention may have various modifications and various embodiments, and specific embodiments will be illustrated in the drawings and described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Hereinafter, a piping monitoring terminal according to the present invention will be described in detail with reference to the drawings.

The piping monitoring terminal 100 according to the present invention is for remotely monitoring the piping status buried in the basement control unit 200, and includes a measuring unit 120; Storage 130; A communication unit 140; And a central control unit 110.

1 and 4, a piping monitoring terminal 100 according to the present invention includes a valve 2 connected to a piping 1 around a pipe 1 buried in the ground, And the state of the pipe is measured.

As described above, the measuring unit 120 measures the piping condition. The piping condition is determined by various types of current (or potential) of the piping 1, whether or not the internal fluid leaks, whether the piping is flooded, The external force of the pipe, the occurrence of abnormal noise around the pipe or pipe, the pressure applied to the pipe, and the occurrence of an abnormal pressure in the pipe.

The piping condition to be measured by the measuring unit 120 is a measurement element that can be set differently according to the type of piping, the type of fluid flowing inside the piping, the surrounding environment of the piping buried, The function of the unit 120 is not limited.

The storage unit 130 is a storage unit located inside the pipe monitoring terminal 100. The storage unit 130 records the pipe condition measured by the measuring unit 120 and includes a normal table and an event mode (event mode).

The storage 130 may be a solid state drive (SSD) or the like, and there is no difference from a physically stored storage unit, and a detailed description thereof will be omitted.

The communication unit 140 transmits the information on the pipe condition measured by the measuring unit 120 to the central control unit 200. [

Preferably, the communication unit 140 is formed of a communication network having good transparency so that bidirectional wireless communication can be performed at about 1.2 m in the ground of the valve chamber 3 using a cellular communication network (for example, CDMA) having a frequency band of 800 MHz.

The central control unit 110 includes the above-described measuring unit 120; Storage 130; And controls the communication unit 140 to transmit the piping state information measured by the measuring unit 120 to the central control unit 200 by using the communication unit 140 as a kind of CPU (Central Processing Unit) .

Specifically, the measuring unit 120 includes a current sensor 121; A voltage sensor 122; A leakage sensor 123; And a water level sensor 124.

First, the current sensor 121 and the voltage sensor 122 are configured to measure the method current and the method voltage flowing through the pipe 1, respectively. As shown in FIG. 4, the current sensor 121 and the voltage sensor 122 are in contact with the piping 1 to measure and collect information about a method current and a system voltage flowing through the piping, respectively.

Although the principle and detailed description of the method current and the method voltage are well known in the art, a detailed description thereof is omitted. However, the conventional method current and voltage measuring instrument is a device for deeply inserting and sensing an underground worker on the ground, Is implemented so that the pipe monitoring terminal 100, which can be buried together with the pipe 1, can continuously detect it.

The leakage sensor 123 may be a gas leakage sensor 123a when the fluid flowing in the pipe 1 is a gas. The technology and configuration for detecting the gas leakage can be easily derived from the known configurations, and the principle and technical explanation thereof will not be described in detail below. However, the present invention measures the measurement method based on the diffusion method and the combustion method.

The water level sensor 124 is configured to detect whether the pipe 1 is flooded with rain, ground water, or the like. As shown in FIG. 4, the water level sensor 124 is a configuration of the pipe monitoring terminal 100 provided at one side of the pipe 1.

4, it is preferable that the water level sensor 124 is installed inside the valve chamber 3 provided with the valve 2 of the pipe 1 while being provided at one side of the pipe 1. [ This is because the drainage in the valve chamber 3 is not easy and the structure is such that the water can be drained. However, if the general position of the pipe 1 not provided with the valve chamber 3 is also required to know whether the water is flooded, any number of the water level sensors 124 may be installed, The position of the pipe 1 is not limited.

In practice, the present invention is implemented such that the water level sensing is measured in units of the water level (cm), and the measurement range is measured by the resistance value measurement method in the range of 0.0 m to 2.0 m. The measurement density need not be as high as + -10% accuracy.

The measuring unit 120 includes various sensors 121, 122, 123 and 124 simultaneously as described above to measure and collect information on various piping conditions.

The measurement unit 120 includes an impact detection sensor 125; A noise detection sensor 126; A pressure sensor 127; May optionally include one or more temperature sensors (128).

First, the impact sensor 125 is an element capable of measuring an external force applied to the pipe 1, for example, an impact applied to the pipe.

Specifically, the impact sensor 125 may be a vibration sensor 125a. The vibration sensor 125a incorporates an acceleration sensor or the like so as to sense vibration or the like of the pipe 1 itself.

The vibration sensor 125a for detecting vibration is a model 731A manufactured by wilcoxon research company manufactured by wilcoxon research Co., Ltd. The vibration sensor 125a for vibration detection is configured to detect whether the pipe 1 is damaged due to an impact applied to the pipe 1, The shock sensor 125 of the present invention is implemented by using the above-described shock sensor. However, the present invention is not limited thereto.

The impact sensor 125 can also detect shock waves. Since the impact applied to the pipe 1 is generally different from a general frequency band due to a vehicle passing over the ground, the frequency band of the vibration of the vehicle By filtering and removing it, the presence or absence of external force applied can be detected. The data analysis SW (sofeware) is implemented by model Labview of National Instruments, Inc. However, this is also a type of analysis tool, which does not limit the function of the impact sensor 125 of the present invention.

The noise detection sensor 126 detects the ambient noise of the pipe 1 and generally has the same function as a microphone. Noise information around the pipe 1 measured by the noise detection sensor 126 provides useful information about the circumstance of the pipe 1.

It is difficult to actually know the type of external force of the pipe 1 to be applied to the impact sensor 125. When the noise transmitted to the pipe 1 is analyzed by the central control unit 200, This is because it is possible to know whether the type of the pipe 1 is caused by the work around the pipe 1 or simply the automobile noise.

Measuring the noise of the piping 1 also provides a preventive effect to prevent the impact that may be applied to the piping 1 in advance even when an external force is not applied. For example, when the noise generated when the forklift or the like is sold due to the construction of the surroundings is detected, it is possible to prevent the phenomenon that the pipeline 1 may be damaged by the forklake or the like in advance.

The pressure sensor 127 measures the external pressure applied to the pipe 1 from the outside of the pipe 1. It is preferable that the pressure sensor 127 is located on the outer wall of the pipe 1. [

The buried pipe 1 is designed to withstand the load applied to the soil covering the pipe 1 and the pressure applied within a predetermined range. However, if a pressure of more than the allowable pressure is applied to the pipe 1, The pressure sensor 127 measures the pressure information applied to the pipe 1. The pressure sensor 127 measures the pressure applied to the pipe 1,

According to the present invention, the storage 130, which is a constitution, can cause the pipe 1 to record the normal table in which the standard conditions for various states that the pipe 1 has under normal conditions are described. In this case, the central control unit 110 sets the piping state to the event mode when the actually measured piping state in the measuring unit 120 is out of the range of the standard conditions recorded in the normal table. In this case, the event mode means that the state of the piping has an abnormal state or conditions, and in the case of the event mode other than the event mode, it is recognized as a normal mode.

The alarm generating unit 150 may further include an alarm generating unit 150. When the piping state is set to the event mode, the alarm generating unit 150 generates an alarm signal to notify that the piping condition is abnormal, The alarm signal is transmitted to the central control unit 200 by the central control unit 110 using the communication unit 140. [

The central control unit 110 may log information on the pipe state measured by the measuring unit 120 at predetermined intervals, and the logging information is stored in the storage unit 130. In this case, power can be supplied only in a predetermined period in order to allow the measuring unit 120 and the communication unit 140 to operate only in a predetermined period.

The logging information is transmitted to the central control unit 200 via the communication unit 140 at the same time as or during the storage and the central control unit 200 can analyze the information on the piping status by time slot .

Although the battery built in the pipe monitoring terminal 100 according to the present invention is implemented to operate with a lithium ion battery (3.6V, 8.5Ah), it should also not limit the right range of the present terminal to the type of battery .

The measurement unit 120 of the pipe monitoring terminal 100 according to the present invention may include a temperature sensor 128. [

The temperature sensor 128 senses the temperature of the pipe 1 and senses the temperature inside the pipe monitoring terminal.

The temperature sensor 128 measures the temperature of the piping monitoring terminal 100 and detects the presence or absence of an internal circuit or battery abnormality of the piping monitoring terminal 100. The temperature sensor 128 detects the occurrence of an abnormal temperature of the piping 1 Is an electronic temperature sensor. The temperature sensor 128 is generally an industrially utilized electronic temperature sensor.

The pipe monitoring terminal 100 according to the present invention may further include a shut-off valve 160.

The shutoff valve 160 is located in the interior of the pipeline 1 and can block the flow of fluid flowing inside the pipeline 1 which is controlled by the central control 110, So that it can be opened and closed.

If the piping condition is out of the standard conditions of the normal table, as described above, the central control unit 110 can control the valve to shut off the flow of the fluid flowing into the piping 1.

The measuring unit 120 of the pipe monitoring terminal 100 according to the present invention may further include an internal pressure sensor 129. The internal pressure sensor 129 is located inside the pipe 1, ) Measure the pressure of the fluid inside. The internal pressure sensor 129 is configured to measure the internal pressure of the pipe unlike the pressure sensor 127. The internal pressure sensor 129 senses whether or not the pressure of the fluid inside the pipe 1 is abnormal, The central control unit 110 controls the shutoff valve 160 to control the flow of the fluid in the piping 1.

As used herein, the singular " include "should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms" comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof.

The scope of the present invention is defined by the claims, the parentheses used in the claims are not used for optional limitation but are used for the definite components and the description in parentheses is also interpreted as an essential component .

1: Piping
2: Valve
3: Valve chamber
4: Manhole cover
5: Upper surface of valve chamber
100: Piping monitoring terminal
110:
120:
121: Current sensor
122: Voltage sensor
123: Leak sensor
123a: Gas flow sensor
124: Water level sensor
125: Shock sensor
125a: vibration sensor
126: Noise sensor
127: Pressure sensor
128: Temperature sensor
129: Pressure sensor
130: storage
140:
150: Alarm generating unit
160: Isolation valve
200: central control unit

Claims

A terminal for remotely monitoring the state of a pipe embedded in a basement in a central control unit,
A measuring unit for measuring the piping condition;
A storage for storing the pipe state information measured by the measurement unit;
A communication unit for performing data communication with the central control unit; And
And a central control unit for transmitting the pipe state information measured by the measurement unit to the central control unit using the communication unit.

The apparatus according to claim 1,
A current sensor for measuring a method current of the pipe;
A voltage sensor for measuring a system voltage of the pipe;
A leakage sensor for sensing a fluid leaking from the pipe; And
And a water level sensor for detecting whether the pipe is flooded or not.

The leak sensor according to claim 2,
And a gas outflow sensor for sensing a gas flowing out of the pipe.

The apparatus according to claim 1,
And a shock detection sensor located in the pipe to sense an external impact applied to the pipe.

5. The apparatus of claim 4, wherein the shock sensor comprises:
And a vibration sensor positioned in the pipe to measure a vibration applied to the pipe.

The apparatus according to claim 1,
And a noise detection sensor located in the pipe to measure noise transmitted to the pipe.

The apparatus according to claim 1,
And a pressure sensor for measuring an external pressure applied to the piping.

8. The storage system according to any one of claims 1 to 7,
Recording the normal table in which the standard conditions of the piping conditions are described,
If the piping condition deviates from the standard conditions of the normal table,
The central control unit,
And setting the piping state to the event mode.

9. The monitoring terminal of claim 8,
When the piping condition is set to the event mode,
Further comprising an alarm generating unit for informing that the piping condition is abnormal,
The central control unit,
Wherein the monitoring unit transmits the alarm generated by the alarm generating unit to the central control unit using the communication unit.

9. The apparatus as claimed in claim 8,
Wherein the measuring unit logs information on the measured piping state at every predetermined period and records the information in the storage.

The apparatus according to claim 1,
And a temperature sensor for sensing a temperature inside the piping or the piping monitoring terminal.

The communication apparatus according to claim 1,
And the data communication is performed with the central control unit in a CDMA system.

9. The monitoring terminal of claim 8,
Further comprising a shutoff valve located inside the piping to shut off the flow of the fluid flowing in the piping,
If the piping condition deviates from the standard conditions of the normal table,
The central control unit,
And controls the valve to block the flow of the fluid inside the pipe.

14. The apparatus according to claim 13,
And an internal pressure sensor for measuring a pressure of the fluid existing in the pipe.

2. The apparatus of claim 1,
Wherein the control unit controls the power supply to the measurement unit and the communication unit only during the predetermined period so that the measurement unit and the communication unit operate at predetermined intervals.