WO2016036040A1

WO2016036040A1 - Low-power-based, high-speed movement system for measuring protection potential of pipe buried under ground

Info

Publication number: WO2016036040A1
Application number: PCT/KR2015/008803
Authority: WO
Inventors: 김진준; 서민성; 김동균
Original assignee: (주)소프트랩
Priority date: 2014-09-01
Filing date: 2015-08-24
Publication date: 2016-03-10
Also published as: KR20160026370A; KR101604344B1

Abstract

The present invention provides a low-power-based, high-speed movement system for measuring an protection potential of a pipe buried under the ground, capable of conveniently measuring and evaluating the protection potential of the pipe buried under the ground while a vehicle is driven, wherein: a potential measurement data logger is attached to a lower end of a manhole cover so as to measure the protection potential of the pipe buried under the ground, thereby measuring a potential between a reference electrode used to measure the protection potential of the pipe buried under the ground and a sacrificial anode for connecting a cathode to the buried pipe to prevent corrosion of the buried pipe, and storing the measured protection potential data in a memory unit; a portable gateway is installed in a vehicle by a worker so as to measure the protection potential of the pipe buried under the ground, such that the potential measurement data logger transmits the protection potential data previously measured and stored in the memory unit to a portable data logger through wireless communication if the portable gateway requests the potential measurement data logger for data transmission when the vehicle passes through a location at which the potential measurement data logger is installed while the vehicle is driven; and the transmitted data is compared with a preset reference protection potential value by a data analysis unit.

Description

Low power based high speed mobile underground buried pipeline potential measurement system

The present invention relates to a low-power, high-speed mobile underground buried method potential measurement system for detecting the potential potential of the underground buried pipe by transmitting the method potential data of the underground buried pipe measured in advance to the vehicle traveling at high speed. In order to measure the anticorrosive potential of underground buried pipe, a potential measurement data logger is attached to the bottom of the manhole cover to prevent corrosion of the reference electrode and buried pipe used to measure the anticorrosive potential of the underground buried pipe. The method potential data measured by measuring the potential of the sacrificial anode to be connected is stored in the memory unit, and the method potential data is transmitted to a mobile gateway installed in the vehicle traveling at high speed, and the reference method potential value preset through the data analyzer is By comparing the anticorrosive state of the underground buried pipe It relates to a high-speed low-power-based removable underground piping system potential measuring system for monitoring.

In general, when various pipes buried underground are made of metal and come into contact with electrolytes such as soil and water, electrolyte flows from the metal surface in the direction of soil and water, causing corrosion of the metal pipes.

These buried pipes are protected from corrosion by using two methods of coating and electric method. The coating method uses polyethylene (PE) for the pipe to prevent corrosion media such as soil and water from contacting the pipe. Since there is no coating material that prevents it from being completely insulated, some pipes are exposed to the corrosive environment such as soil and water, and the coating may be damaged by other constructions. use protection (CP).

The electrical method is mainly a method of inhibiting corrosion of the equipment or structure by artificially controlling the potential of the equipment or structure that requires the method, such as the anode protection (anodic protection) to polarize the anticorrosive object (cathode) and the negative electrode to cathodic object There is cathodic protection. The anode method is used in a limited way because the corrosion is accelerated if the potential control is not precisely made, and in most cases the cathode method is mainly used.

The cathode method is a method of preventing corrosion by artificially lowering the potential of an anticorrosive object, and is classified into a sacrificial anode method and an external power supply method according to a method of applying an anticorrosive current. The sacrificial anode method is a method of cathodic objects by electrically connecting a metal having a high tendency to ionization (usually magnesium is used) in an electrolyte to act as an anode, and the external power method is a cathode (-) of a DC power supply or a rectifier. Is connected to the anticorrosive object and the positive electrode (+) is connected to the positive electrode member disposed under the buried metal structure to obtain the anticorrosive current.

Therefore, it is very important to diagnose whether the electrical method is correctly performed in the pipe embedded in the soil, and only accurate diagnosis can prevent the corrosion of the pipe and find the exact cause when the corrosion problem occurs. I can solve it. Underground pipes have a natural intrinsic potential of -400 to 500mV. In this state, since metal ions carry electricity and corrosion proceeds, the pipe is usually lowered by -300mV for the pipe system. The potential of the earth is kept below -850mV.

In order to prevent corrosion of the pipes in this way, after installing the pipes, various environmental factors around the pipes (for example, grounding of other pipes, damage to the coating of the pipes by other construction, disconnection from the anode, etc.) Due to this, the proper anticorrosive effect is not achieved, causing a lot of accidents due to damage to the pipe. Therefore, the anticorrosive system installed in the pipe is periodically checked to confirm whether the anticorrosive state of the pipe is normally performed.

However, the corrosion protection system not only takes a lot of manpower but also takes a lot of time to inspect the operation state directly, and when inspecting the corrosion protection system installed in the vicinity of the road where the traffic flows a lot, the operator can take a long time measurement work on the roadway. This increases the risk of causing a safety accident.

The present invention has been made to solve the above problems and to attach the potential measurement data logger to the bottom of the manhole cover to measure the anticorrosive potential of underground buried pipe and the reference electrode used for the anticorrosive potential of the underground buried pipe and In order to prevent the corrosion of the buried pipe, the potential of the sacrificial anode connecting the cathode to the buried pipe is measured, and the measured antipotential potential data is stored in the memory, and the operator places a mobile gateway in the vehicle for measuring the antipotential potential of the underground buried pipe. When the vehicle is installed and the vehicle moves past the position where the potential measurement data logger is installed, when the mobile gateway requests data transmission to the potential measurement data logger, the potential measurement data logger measures the potential potential data stored in advance in the memory to the mobile gateway. Transmitted and sent over the air The purpose of this study is to provide a low-power, high-speed mobile underground buried potential measurement system that can easily measure and evaluate the underground potential of underground buried pipelines while driving a vehicle compared to the reference potential values previously set by the data analysis unit. have.

In addition, the present invention is the wireless communication unit of the potential measurement data logger is divided into Sleep mode, Idle mode, Active mode, and in normal Idle mode if the data transmission request from the mobile gateway by repeating the Sleep mode and Idle mode at regular intervals. By detecting the data transmission request and converting it into the active mode and transmitting the pre-stored data, it is possible to transmit the data with low power, and the low-power-based system that transmits the measured data to the vehicle that travels at high speed in a short time by transmitting the pre-stored data. Another object is to provide a fast moving underground buried potential measurement system.

The present invention provides a low-power, high-speed mobile underground buried method potential measurement system for detecting the potential potential of the underground buried pipe by transmitting the pre-measured potential data of the underground buried pipe to the vehicle traveling at high speed,

In order to prevent corrosion of the reference electrode and the buried pipe used for the anticorrosive potential of the underground buried pipe, the potential of the sacrificial anode connecting the cathode to the buried pipe is measured, and the measured data are stored and transmitted. Potential measurement data logger;

A mobile gateway requesting transmission of the potential potential data to the potential measurement data logger when the potential potential data measured and stored by the potential measurement data logger is moved, and receiving the potential potential data through wireless communication;

A data analysis unit for detecting and displaying a method potential state of the buried pipe by comparing and analyzing the method potential data received from the mobile gateway with a preset reference method potential value; Characterized in that consists of.

The potential measurement data logger includes a potential measurement unit for measuring the potential of the reference electrode and the sacrificial anode used for the anticorrosive potential measurement of the underground buried pipe, a memory unit for storing the corrosion potential data measured by the potential measurement unit, and the memory. A wireless communication unit which transmits the method potential data to the mobile gateway when the mobile gateway installed in the vehicle sends the data transmission request signal stored in the vehicle; and a power supply unit supplying power using the battery to the potential measurement data logger; And a potential measurement control unit controlling the potential measurement time of the potential measurement unit and controlling to transmit system potential data when the mobile gateway sends a data transmission request signal.

The potential measuring unit measures an electric potential for a predetermined time by setting an optimum stable data measuring time zone by a command of the electric potential measuring controller.

In addition, the wireless communication unit sleep mode for converting to a sleep state that does not perform a communication operation, Idle mode for detecting a data transmission request signal transmitted from the mobile gateway, and in the Idle mode to detect the data transmission request signal of the mobile gateway In this case, it consists of the active mode that transmits the potential data stored in the memory part.It usually repeats the sleep mode and the idle mode at regular intervals, and when the mobile gateway detects the data transmission request signal in the idle mode, it is converted into the active mode. And transmitting data to the mobile gateway.

The mobile gateway is always set to an active mode, and requests the data transmission request from the potential measurement data logger and receives the stored method potential data when the potential measurement data logger detects the data transmission request signal of the mobile gateway.

In addition, the data analysis unit receives the method potential data from the mobile gateway, the data storage unit for storing the received method potential data, the method potential data stored in the data storage unit and the preset reference method potential value compared to the It characterized in that it comprises a method potential evaluation unit for evaluating the method potential state of the buried pipe, an alarm generating unit for generating an alarm when out of the range in the method potential evaluation unit and a display unit for displaying the method potential data.

The present invention is to attach the potential measurement data logger to the bottom of the manhole cover to automatically measure the anticorrosive potential of the underground buried pipe to measure the anticorrosive potential of the underground buried pipe and store the measured antipotential data in the memory to the vehicle When the installed mobile gateway requests data transmission, the method potential data stored in the memory unit is transmitted to the mobile gateway, so that the measured method potential data can be transmitted in advance even when the vehicle is traveling at high speed.

In addition, the wireless communication unit of the potential measurement data logger is divided into the sleep mode, the idle mode, and the active mode during the transmission of the method potential data, and the data transmission request signal of the mobile gateway in the idle mode is repeatedly repeated at regular intervals in the sleep mode and the idle mode. When it detects, it converts into active mode and transmits predetermined data to minimize the amount of current consumed by data communication, so it can be used for a long time using only battery.

1 is a block diagram of a low-power high-speed mobile underground buried pipeline potential measurement system according to the present invention.

Figure 2 is a view of the installation of a low-power high-speed mobile underground buried pipeline potential measurement system according to the present invention.

Figure 3 is a graph showing the communication method of the wireless communication unit of the low power-based high-speed mobile underground buried method potential measurement system according to the present invention.

[Description of the code]

** SIGNS FOR MAIN PARTS OF THE DRAWINGS **

100: manhole cover 200: buried pipe

210: reference electrode 220: sacrificial anode

300: potential measurement data logger 310: potential measurement unit

320: memory unit 330: wireless communication unit

340: power supply unit 350: potential measurement control unit

400: mobile gateway 500: data analysis unit

510: data storage unit 520: anticorrosive potential evaluation unit

530: alarm generating unit 540: display unit

The present invention attaches the potential measurement data logger 300 to the lower end of the manhole cover 100 to measure the anticorrosive potential of the underground buried pipe 200, the reference electrode used for the anticorrosive potential of the underground buried pipe 200 In order to prevent corrosion of the 210 and the buried pipe 200, the method potential data measured by measuring the potential of the sacrificial anode 220 connecting the cathode to the buried pipe 200 is stored in the memory unit 320. When requesting data transmission from the mobile gateway 400 installed in a vehicle traveling at a high speed, the method potential data measured and stored in advance by the wireless communication unit 330 of the potential measurement data logger 300 is automatically transmitted through wireless communication. Low-power-based, high-speed mobile underground buried method for monitoring the potential level of the underground buried pipe 200 by comparing with the reference method potential value set in advance through the analysis unit 500 Reference to the drawings attached to be described in detail the present invention relates to a measurement system will be described in detail.

1 is a block diagram of a low-power high-speed mobile underground buried type potential measurement system based on the present invention, Figure 2 is a view of the installation of a low-power high-speed mobile underground buried type potential measurement system according to the present invention, Figure 3 Is a graph showing a communication method of the wireless communication unit of the low-power high-speed underground buried underground potential measurement system based on the present invention.

The present invention can detect the potential potential of the underground buried pipe 200 by transmitting the method potential data of the underground buried pipe 200 measured in advance to the vehicle traveling at a high speed as shown in FIGS. As described above, the present invention includes a potential measurement data logger 300, a mobile gateway 400, and a data analyzer 500. Specifically, the reference electrode 210 is used for measuring the potential of the underground buried pipe 200. In order to prevent corrosion of the buried pipe 200, the potential of the sacrificial anode 220 connecting the cathode of the buried pipe 200 is measured, and the measured data are stored and stored in the mobile gateway 400. The method potential data transmission is performed to the potential measurement data logger 300 to be transmitted and the method potential data measured and stored by the potential measurement data logger 300 to the potential measurement data logger 300 when the vehicle is traveling. The mobile gateway 400 which receives the method potential data and transmits the method potential data through wireless communication, compares the method potential data received by the mobile gateway 400 with a preset reference method potential value of the buried pipe 200. It consists of a data analysis unit 500 for detecting and displaying the manner potential state.

The potential measurement data logger 300 is a potential measurement unit 310 for measuring the potential of the reference electrode 210 and the sacrificial anode 220 used for the anticorrosive potential measurement of the underground buried pipe 200, and the potential measurement unit When the data transmission request signal is transmitted from the memory unit 320 storing the method potential data measured in step 310 and the method potential data stored in the memory unit 320 to the mobile gateway 400 installed in the vehicle, the data transmission request A wireless communication unit 330 for receiving a signal and transmitting stored method potential data, a power supply unit 340 for supplying power using a battery to the potential measurement data logger 300, and a potential of the potential measurement unit 310. It is composed of a potential measurement control unit 350 to control the measurement time and to control the transmission of the potential potential data when the mobile gateway 400 sends a data transmission request signal.

The potential measuring unit 310 measures the potential for a predetermined time by setting the optimum stable data measurement time zone by the command of the potential measurement control unit 350, the optimum stable data measurement time zone is the surrounding conditions of the installation location In consideration of this, it is common to set the data at dawn to minimize interference and noise in data measurement.

In addition, in the present invention, the potential of the reference electrode 210 and the sacrificial anode 220 is measured using the sacrificial anode method to measure the anticorrosive potential, but when the external power method is used, the potential of the reference electrode 210 and the external power source is used. Can be measured and replaced.

As shown in FIG. 3, the wireless communication unit 330 is converted into a sleep mode, an idle mode, and an active mode to transmit data, and the sleep mode is not in a communication operation, and the idle mode is in the mobile gateway 400. The data transmission request signal is detected, and in the active mode, when the data transmission request signal of the mobile gateway 400 is detected in the idle mode, the stored data is transmitted. Therefore, normally, the Sleep mode and Idle mode are repeated at regular intervals (for example, 1 second), and when the mobile gateway 400 sends a data transmission request signal, the data transmission request signal is detected in the Idle mode and the data is converted to the active mode. Send to gateway 400.

At this time, when the mobile gateway 400 is always set to the active mode to transmit a data transmission request signal to the potential measurement data logger 300 and the potential measurement data logger 300 detects the data transmission signal of the mobile gateway 400. Transfer the stored method potential data.

Since the potential measurement data logger 300 is supplied with a battery and installed in the manhole cover 100, it should be usable for a long time. Accordingly, when the wireless communication unit 330 is set to a sleep mode, an idle mode, and an active mode, current consumption due to data communication can be minimized, thereby enabling low power-based data communication.

In addition, the potential measurement unit 310 of the potential measurement data logger 300 sets an optimal time zone for potential measurement to measure stable data, and stores the measured data in the memory unit 320 to move to a vehicle ( When the data transmission request signal is transmitted from 400, the data stored in the memory 320 may be transmitted, and thus data may be transmitted in a short time.

The data analysis unit 500 receives the method potential data from the mobile gateway 400 and stores the received method potential data, the method potential data stored in the data storage unit 510 and An alarm that generates an alarm when the method potential evaluation unit 520 and the method potential evaluation unit 520 evaluate a method potential state of the buried pipe 200 in comparison with a preset reference method potential value. The generator 530 and the display unit 540 for displaying the potential potential data.

The anticorrosive potential evaluator 520 sets the anti-corrosion potential according to the reference electrode 210. When the saturated copper sulfate reference electrode 210 is used, the anticorrosive potential evaluator 520 may maintain the anticorrosive potential below 850 mV. According to the type of reference electrode 210, the preset reference method potential value and the measured method potential data are compared to evaluate the method potential of the buried pipe 200, and if outside the reference range through the alarm generator 530 Raise an alarm.

In the present invention having the above configuration, the potential measurement data logger 300 is installed on the manhole cover 100 to measure the potential of the reference electrode 210 and the sacrificial anode 220 installed near the buried pipe 200. When the measured data is stored in the memory unit 320 and the mobile gateway 400 is installed in the vehicle to drive the vehicle to send a data transmission request signal to the potential measurement data logger 300, the wireless measurement of the potential measurement data logger 300 is performed. The communication unit 330 detects a data transmission request signal and transmits the method potential data stored in the memory unit 320 to the mobile gateway 400 so that the method potential data is automatically generated only by driving of the vehicle without an existing person measuring the method potential. Received can detect the manner potential state of the buried pipe 200. In addition, the wireless communication unit 330 may be converted into a sleep mode, an idle mode, and an active mode to transmit data, thereby minimizing current consumption for data communication.

As described above, preferred embodiments according to the present invention have been described, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the scope of the present invention as claimed in the following claims. Anyone with knowledge of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims

In the low-power-based high-speed mobile underground buried method potential measurement system for detecting the potential potential of the underground buried pipe by transmitting the pre-measured potential data of the underground buried pipe to the vehicle traveling at high speed,

In order to prevent corrosion of the reference electrode and the buried pipe used for the anticorrosive potential of the underground buried pipe, the potential of the sacrificial anode connecting the cathode to the buried pipe is measured, and the measured data are stored and transmitted. Potential measurement data logger;

A mobile gateway requesting transmission of the potential potential data to the potential measurement data logger when the potential potential data measured and stored by the potential measurement data logger is moved, and receiving the potential potential data through wireless communication;

A data analysis unit for detecting and displaying a method potential state of the buried pipe by comparing and analyzing the method potential data received from the mobile gateway with a preset reference method potential value; Low-power high-speed mobile underground buried pipeline potential measurement system, characterized in that consisting of.
The method of claim 1,

The potential measurement data logger is

A potential measurement unit for measuring the potentials of the reference electrode and the sacrificial anode used in the anticorrosive potential of the underground buried pipe;

A memory unit for storing anticorrosive potential data measured by the potential measuring unit;

A wireless communication unit which transmits the method potential data to the mobile gateway when the method potential data stored in the memory unit transmits a data transmission request signal from the mobile gateway installed in the vehicle;

A power supply unit supplying power using the battery to the potential measurement data logger;

A potential measurement control unit controlling the potential measurement time of the potential measurement unit and controlling to transmit system potential data when the mobile gateway sends a data transmission request signal; Low-power high-speed mobile underground buried pipeline potential measurement system, characterized in that consisting of.
The method of claim 2,

The potential measurement unit is a low-power high-speed mobile underground underground pipeline potential measurement system, characterized in that for measuring a potential for a predetermined time by setting an optimum stable data measurement time zone by the command of the potential measurement control unit.
The method of claim 2,

The wireless communication unit sleep mode for converting to a sleep state that does not perform a communication operation, an Idle mode for detecting a data transmission request signal transmitted from the mobile gateway, and a memory for detecting a data transmission request signal of the mobile gateway in the Idle mode It consists of Active mode that transmits potential data stored in the unit.Usually, Sleep mode and Idle mode are repeated at regular time intervals.When the mobile gateway detects a data transmission request signal in Idle mode, it is converted to Active mode and the method potential data is transmitted. Low-power high-speed mobile underground buried pipeline potential measurement system characterized in that the transmission to the mobile gateway.
The method of claim 1,

The mobile gateway is always set to the active mode to request data transmission to the potential measurement data logger, and when the potential measurement data logger detects a data transmission request signal of the mobile gateway, the stored power potential data is received. High-speed mobile underground buried potential measurement system.
The method of claim 1,

The data analysis unit receives the method potential data from a mobile gateway and stores the received method potential data, and compares the method potential data stored in the data storage unit with a preset reference method potential value to the buried pipe. Low power-based high-speed mobile, characterized in that it consists of a method potential evaluation unit for evaluating the method potential state of the method and an alarm generator for generating an alarm when out of the range in the method potential evaluation unit and a display unit for displaying the method potential data Underground buried pipeline potential measurement system.