KR200429436Y1 - System of monitoring water leakage - Google Patents

Abstract

The present invention is a leak detection sensor for detecting a specific liquid, a unique number is assigned and stored, the reference data is stored, the leak detection signal is transmitted from the leak detection sensor, the detection data and the reference data of the detection signal A leak detector comprising: a first controller configured to compare and analyze a leak; and a first communicator configured to transmit a leak detection signal to a central controller through remote wireless communication according to an instruction of the first controller; And a second communication unit through which a leak detection signal is transmitted through the first communication unit of the leak detector, and unique numbers of a plurality of leak detectors, and analyzing the signals transmitted from the second communication unit to determine the unique number of the leak detector. A second control unit for indicating an alarm sound output and lighting of the detection lamp when detecting leakage, a second alarm unit for outputting an alarm sound and a voice corresponding to the instruction of the second control unit, and an instruction of the second control unit Correspondingly, the central controller is composed of a second display unit for lighting the detection lamp corresponding to the extracted unique number; can be configured to reduce the maintenance and downtime due to leakage, material damage and leakage of expensive major equipment It prevents secondary damage caused by water, and it can fundamentally minimize water loss through leak detection and disconnection monitoring function that occurs in several places. It is very easy to install no difficulties during the installation of the machine.

Description

Remote Wireless Leak Detection System {System of monitoring water leakage}

1 is an exemplary view of a conventional piping structure,

2 is a block diagram of a remote wireless leak detection system according to the present invention,

3 is an exemplary view of a remote wireless leak detector according to the present invention,

Figure 4a is an illustration of a remote wireless central controller according to an embodiment of the present invention,

4B is an exemplary view of a remote wireless central controller according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: Leakage detector 11: Leakage sensor

12: amplification section 13: A / D conversion section

14: first control unit 15: first communication unit

16: alarm section 17: display section

20: central controller 21: second communication unit

22: second control unit 23: second alarm unit

24: second display unit

The present invention relates to a remote wireless leak detection system, and more specifically, when a leak is detected through a leak detector assigned a unique number, the alarm sound is output and the light emitting diode is turned on, and the leak detection signal and the unique number are wirelessly communicated. The central controller analyzes the transmitted signal, turns on the detection lamp with the corresponding leak detector and the corresponding unique number, and outputs an alarm sound and voice, thereby remotely detecting a leak. It relates to a detection system.

In general, in industrial facilities, water or chemicals are used for various purposes. Leaks can damage expensive equipment and threaten human safety from these chemicals.

In particular, various kinds of chemicals and ultrapure water are used to process various unit processes of a semiconductor, and piping is also variously used according to the types of chemicals and ultrapure water.

1 shows a piping structure according to the prior art. Referring to FIG. 1, a pipe 10 through which chemicals or ultrapure water for supplying a unit process such as an etching process, a deposition process, or a cleaning process is supplied is formed. The pipe 10 may rupture as indicated by reference numeral 12 due to aging or other process problems.

However, in the related art, even if the pipe 10 is ruptured as described above and leaks 14 are generated through the rupture portion 12, it is difficult to find leaks due to the pipe rupture early in the conventional pipe 10 structure. In addition, when a leak is found, a large amount of water leak is already generated, which causes a process accident, and when a second damage such as a short circuit or a chemical leak occurs, the entire manufacturing line is affected. As the amount of is increased, there is a problem that economic losses are caused.

Therefore, by installing a leak detection sensor in the overall industrial facilities, such as to detect the leakage of water or chemicals to prevent this.

Most of the conventional leak detection sensors are installed on the lower end of the sensor by using a photo sensor circuit method using light (photo sensor) reflecting light, and detects the leakage according to the illuminance of the light reflected from the absorbing paper. .

In the absorber type optical sensor, when water or chemical is absorbed by the absorbent paper, the light intensity of the absorbent paper is changed.

Such a leak detection sensor of the conventional optical sensor type has to replace the absorbent paper every time the leak is leaked, and after a certain time after installing the sensor, the illumination intensity may change due to humidity and chemical properties in the air, which may cause malfunctions. many.

Therefore, the conventional leak detection sensor is cumbersome to always be equipped with a good white absorbent wet paper in order to maintain the uniform illumination, there is a high probability of malfunction in the case of chemicals with a small change in the illumination.

The present invention is designed to solve such a problem, the purpose of the present invention is to detect the leakage of the pipe early, and to prevent the secondary damage of the entire manufacturing line due to the leakage of the pipe can be stabilized remote Provides a wireless leak detection system.

Another object of the present invention is to provide a remote wireless leak detection system that is not difficult to install by mounting a leak detector to the bottom of a specific pipe for transmitting a leak detection signal by remote wireless communication.

Another object of the present invention is to provide a remote wireless leak detection system that can easily recognize the leak location of the pipe by displaying the unique number of the leak detector is detected leak in the central controller.

In order to achieve the above object, the technical means according to the present invention is a leak detection sensor for detecting a specific liquid, a unique number is stored and stored, the reference data is stored, the leak detection signal from the leak detection sensor And a first control unit which compares the detected data of the detection signal with reference data to determine whether there is a leak, and transmits the leak detection signal to the central controller through remote wireless communication according to the instruction of the first control unit. A leak detector comprising a first communication unit; And a second communication unit through which a leak detection signal is transmitted through the first communication unit of the leak detector, and unique numbers of a plurality of leak detectors, and analyzing the signals transmitted from the second communication unit to determine the unique number of the leak detector. A second control unit for indicating an alarm sound output and lighting of the detection lamp when detecting leakage, a second alarm unit for outputting an alarm sound and a voice corresponding to the instruction of the second control unit, and an instruction of the second control unit Correspondingly, a central controller comprising a second display unit for lighting the detection lamp corresponding to the extracted unique number.

According to the present invention, it is possible to reduce maintenance and downtime due to water leakage, to prevent secondary damage due to material damage and leakage of expensive major equipment, and to prevent water loss through leakage detection and disconnection monitoring function occurring in various places. It can be minimized fundamentally.

In addition, by installing a leak detector that transmits a leak detection signal through remote wireless communication under a specific pipe, there is no difficulty in installation, and thus installation is very easy.

In addition, when a leak number is stored in each leak detector and a leak detection signal is transmitted from the leak detector to the central controller, the central controller analyzes the transmitted signal and detects a detection lamp with a unique number corresponding to the leak detector. By turning on the light and simultaneously outputting the leak condition with an alarm sound and voice, the leak position of the pipe can be recognized accurately and quickly.

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

FIG. 2 is a block diagram illustrating a remote wireless leak detection system, and includes a leak detector 10 and a central controller 20. The leak detector 10 includes a leak detection sensor 11, an amplifier 12, and A /. D conversion unit 13, the first control unit 14, the first communication unit 15, the first alarm unit 16 and the first display unit 17, the central controller 20 is the second communication unit 21 And a second control unit 22, a second alarm unit 23, and a second display unit 24.

The leak detector 10 is located where the water and pipes through which a certain liquid flows are installed to detect a leak of the pipe. That is, since water and a specific liquid flow down, it is preferable to place the leak detector 10 below the pipe.

In addition, since the leak detector 10 transmits a leak detection signal to the central controller 20 through remote wireless communication, that is, RF communication, the leak detector 10 is placed at a specific position where the pipe is installed without a separate installation by a special method for each pipe. If the area of a certain distance from the place where the commercial power connector is installed can be easily mounted, the movement of the leak detector 10 is easy and convenient to use.

The leak detector 10 is formed of a hexahedral housing 10-1, and a support 10-10 having a predetermined height is formed at the lower side of the housing 10-1 so as to be mounted on a floor. When the leak occurs in the pipe and detects the water flowing to the floor and a specific liquid and transmits the detected signal to the central controller (20). This will be described in more detail with reference to FIG. 3.

The inside of the housing 10-1 made of a hexahedron performs the functions of the first display unit 17, the first alarm unit 16, the first communication unit 15, the first control unit 14, and the power supply unit 18. An electronic circuit is provided, and an antenna 10-3 for transmitting and receiving an RF radio signal is provided above the housing 10-1, and a support 10-2 having a predetermined height below the housing 10-1. A plurality of) are installed. That is, the housing 10-2 is installed apart from the bottom surface by a predetermined distance by the support 10-2.

In addition, a leak detection sensor 11 for detecting a leak is installed at the lower center of the housing 10-1, and the leak detection sensor 11 forms a predetermined distance from the bottom surface by the support 10-2.

That is, the water leak sensor 11 detects water or a specific liquid present between the plurality of supports 10-2 through the leak detection sensor 11 forming a predetermined distance from the bottom surface by the support 10-2. Converts the detected signal into an electrical signal and transmits it to the amplifier 12.

The lower side of the housing 10-1 is opaque and the upper side is transparent. When water is detected through the leak detection sensor 11 during power supply, a light emitting diode, which is a display unit installed inside the transparent part of the housing 10-1, 10-4) is lit or flashing, the administrator can easily check whether the leak is visually.

The leak detection sensor 11 is a sensor that detects water or a specific liquid, and is variously classified according to a principle of detecting water.

For example, the principle of generating a signal by comparing the frequency sent to the bottom surface with the frequency when there is water, and measuring the current between the two electrodes on the plate and measuring the current flowing through the plate when leaking There is a leak detection sensor using the principle of comparison.

In addition, the present invention is not limited to the leak detection sensor of the two principles as described above.

The amplifier 13 comprises an operational amplifier and amplifies a small voltage signal input from the leak detection sensor 11 to a predetermined level, and the A / D converter 14 is output through the amplifier 13. The analog signal is sampled at a predetermined frequency, converted into corresponding digital data, and transmitted to the controller 15.

The first control unit 15 is assigned a unique number of the leak detector 10, the reference data is stored, has a built-in operating program for determining whether the leak, the signal detected by the leak detection sensor 11 Is input through the A / D converter 14, the input data is analyzed and compared with the reference data according to the operating program to determine whether there is a leak, and in case of leakage, the first display unit 17 emits light. ), The first alarm unit 16 is controlled to output an alarm sound through the speaker 10-4, and the first communication unit 15 is controlled to wirelessly transmit the leak detection signal to the central controller 20. Instruct them to.

Here, the leak detection sensor 11 detects water at least 150 ms, at most 4100 ms, and has an error detection time of about 9.2 sec to 13 sec of a transmitter, which is a communication unit during communication.

The leak detector 10 further includes a reset 10-5 switch on the upper side of the housing 10-1, and drives the reset switch to reset the system of the leak detector 10.

In addition, the output of the alarm sound and the light emitting diode informing of a dangerous situation are operated until the manager recognizes the leak situation, and when the administrator operates the reset switch 10-5 after the leak condition is recognized, the reset switch is reset. The signal is transmitted to the first control unit 14 and the driving of the display unit 17 and the alarm unit 16 is stopped according to the instruction of the first control unit 14.

The first communication unit 15 is composed of RF communication using a remote wireless communication, the frequency range of the transmission and reception with the second communication unit is 420 to 950Hz, upon detecting the leakage of a specific pipe according to the instruction of the first control unit 14, The leak detection signal is transmitted to the central controller 20.

When the first alarm unit 16 is equipped with a speaker or a buzzer to detect a leak according to the instruction of the first control unit 14, the first alarm unit 16 generates an alarm sound through the speaker or the buzzer.

The first display unit 17 is formed of a light emitting diode, and when a leak is detected in response to an instruction of the first control unit 14, the light emitting diode 10-4 flashes or lights up, or a plurality of light emitting diodes 10 are provided. -4) flashes sequentially.

In addition, the first display unit 17 sequentially flashes the plurality of light emitting diodes 10-4 for a predetermined time or simultaneously flashes the plurality of light emitting diodes 10-4 for a predetermined time when power is supplied, thereby determining whether to supply power. Makes it visually identifiable.

The power supply unit 18 supplies the operating power of each component of the leak detector 10, and is connected to the commercial power through the connector 10-6 of a predetermined length to supply the operating power of each component.

In addition, it is preferable that the power supply unit 18 use a good replacement and mobility such as a battery for ease of mounting the leak detector 10.

As shown in FIG. 4A, the central controller 20 is provided with an antenna 20-1 for wireless communication with a leak detector on the upper side of the housing, and corresponds to a unique number of each leak detector on the front of the housing. A detection lamp 20-2 is provided with a unique number, and a communication lamp that is turned on / off or flashes to visually identify the presence or absence of RF communication of the wireless communication with the leak detector and the communication state on the upper side of the housing. (20-3) is provided, the speaker 20-4 for outputting the alarm sound and the alarm sound so that the occurrence of leakage can be audibly identified in the front lower side of the housing, each component portion in the lower side of the housing A power switch 20-5 for turning on / off the driving power supplied to the alarm, an alarm tone switch 20-6 for indicating the on / off of the alarm sound output, and an alarm for indicating the on / off of the alarm sound / voice output Sound / voice switch (20-7) and A reset switch 20-8 is further provided for instructing the system to be reset.

Here, the system reset switch 20-8 resets the system of the central controller 20 when pressed briefly, and resets the transmitter, which is the system and communication unit of the central controller, when pressed for 1.3 sec or more.

In addition, when the alarm sound switch 20-6 is turned off, when a leak is detected through a specific leak detector 10, only a sound indicating the leak detection is output, and the alarm sound / voice switch 20-7 is turned off. When the leak is detected through the specific leak detector 10, both the alarm sound and the voice is not output, and when the power switch 20-5 is turned off, the supply of operating power to the central controller 20 is cut off.

The central controller 20 transmits a leak detection signal from the plurality of leak detectors 10 through the antenna 20-1, and transmits a unique number of each leak detector together.

The central controller 20 stores the unique numbers of the plurality of leak detectors 10, and searches for the unique numbers transmitted from the leak detectors 10 to identify the leak detectors in which leaks are detected.

The second communication unit 21 consists of RF communication using remote wireless communication, and when the leak detection signal of the specific leak detector 10 is transmitted with the corresponding unique number through the first communication unit 15, The leak detection signal of 10) is transmitted to the second controller 22 together with the unique number of the leak detector 10.

The second controller 22 stores a unique number of each leak detector 10, an operation program for analyzing and calculating a leak detection signal of a specific leak detector, and a leak detection signal from the specific leak detector 10. When is transmitted, by analyzing and calculating the transmitted signal in accordance with the stored operating program, extract the unique number of the detected leak detector 10, the detection lamp 20-2 corresponding to the extracted unique number is lit or flashing The second display unit 24 is controlled to control the second display unit 24, and the second alarm unit 23 is controlled to output an alarm sound indicating a leak.

In addition, the second control unit 22 may store the unique number of the leak detector 10 and the location of the leak detector, so that when the leak is detected, the unique number and the location of the leak detector 10 may be output together with voice.

When the second alarm unit 23 installs the speaker 20-4 or the buzzer and detects a leak of a specific pipe according to the instruction of the second control unit 22, the second alarm unit 23 generates an alarm sound through the speaker 20-4 or the buzzer. Output voice.

For example, when a leak is detected in the leak detector to which the serial number 22 is assigned, the alarm unit 23 responds to the instruction of the second control unit 22 through the speaker 20-4 together with an alarm sound to indicate a "leak detector." A leak was detected at number 22. "

The second display unit 24 is composed of a plurality of detection lamps 20-2. When a leak is detected according to the instruction of the second control unit 22, the second display unit 24 has a unique number of the leak detector 10 in which the leak is detected. Blink or light the detection lamp 10-2 with the corresponding number.

In addition, the second display unit 24 is further provided with a communication lamp 20-3, so that the administrator can identify whether or not the communication is abnormal, if the communication is made without a problem, the communication lamp 20-3 is turned on or predetermined By blinking at intervals, the administrator is notified of communication errors.

In addition, as shown in FIG. 4B, the LED display 20-9 and the LCD window 20-10 are further provided on the second display unit 24, so that the current operation state of the LED window 20-9 is normal. Is displayed as a letter, and a graphic related to leakage is displayed on the LCD window 20-10 to facilitate the management and supervision of the manager.

The present invention is not limited to the above-described embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various changes without departing from the gist of the present invention as claimed in the following claims.

As described in detail above, the present invention can reduce maintenance and downtime due to leakage, prevent secondary damage due to material damage and leakage of expensive main equipment, leak detection and disconnection occurring in various places. Surveillance can fundamentally minimize water losses.

In addition, by installing a leak detector that transmits a leak detection signal through remote wireless communication under a specific pipe, there is no difficulty in installation, and thus installation is very easy.

In addition, when a leak number is stored in each leak detector and a leak detection signal is transmitted from the leak detector to the central controller, the central controller analyzes the transmitted signal and detects a detection lamp with a unique number corresponding to the leak detector. By turning on the light and simultaneously outputting the leak condition with an alarm sound and voice, the leak position of the pipe can be recognized accurately and quickly.

Claims (5)

Leak detection sensor for detecting a specific liquid, A first control unit configured to store a unique number, store reference data, transmit a leak detection signal from the leak detection sensor, and compare the detected data and the reference data of the detection signal to determine whether there is a leak; , A leak detector comprising a first communication unit for transmitting a leak detection signal to a central controller through remote wireless communication in response to an instruction of the first control unit; And A second communication unit for wirelessly transmitting a leak detection signal through the first communication unit of the leak detector; A second control unit for storing the unique numbers of the plurality of leak detectors, extracting the unique number of the leak detector by analyzing the signal transmitted from the second communication unit, and instructing the alarm sound output and the lighting of the detection lamp to detect the leak; , A second alarm unit for outputting an alarm sound and a voice in response to an instruction of the second control unit; And a central controller configured to have a second display unit lighting the detection lamp corresponding to the extracted unique number in response to the instruction of the second control unit. The method according to claim 1, wherein the leak detector A first display unit which lights or flashes a light emitting diode when a leak is detected according to an instruction of the first control unit; And And a first alarm unit configured to output an alarm sound when a leak is detected, in response to the instruction of the first control unit. The method of claim 1, wherein the central controller And a communication lamp which is lit or flashes when the communication is normally performed according to the instruction of the second controller. The method of claim 1, wherein the central controller An LED window for displaying whether or not a leak is detected according to an instruction of the second controller; And And a liquid crystal display (LCD) window for graphically displaying whether or not a leak is detected in response to an instruction of the second controller. The method according to claim 1, wherein the leak detector A housing of a hexahedron, the lower side of which is opaque, and the upper side of the housing, a plurality of supports installed on the lower side of the housing, an antenna installed on the upper side of the housing to transmit and receive RF radio signals, and a lower center of the housing, Leakage detection sensor that forms a predetermined distance from the bottom surface by the support, and detects a specific liquid of the bottom surface, a plurality of light emitting diodes installed inside the upper side of the housing, installed on one side of the housing and commercial power Remote wireless leak detection system characterized in that the connection is formed of a connector having a predetermined length for supplying driving power.

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