KR101662050B1 - Leakage detecting apparatus and leakage detecting system using the same - Google Patents
Leakage detecting apparatus and leakage detecting system using the same Download PDFInfo
- Publication number
- KR101662050B1 KR101662050B1 KR1020160033124A KR20160033124A KR101662050B1 KR 101662050 B1 KR101662050 B1 KR 101662050B1 KR 1020160033124 A KR1020160033124 A KR 1020160033124A KR 20160033124 A KR20160033124 A KR 20160033124A KR 101662050 B1 KR101662050 B1 KR 101662050B1
- Authority
- KR
- South Korea
- Prior art keywords
- substance
- resistance value
- leakage
- leak detection
- unit
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 135
- 238000004891 communication Methods 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000012153 distilled water Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000010248 power generation Methods 0.000 claims description 10
- 230000035945 sensitivity Effects 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 239000013076 target substance Substances 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009118 appropriate response Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
The present disclosure relates to a leak detection apparatus and a leak detection system including the same.
Generally, the oil tank and the water pipe are buried in the basement. Therefore, when the fluid in the fluid storage tank and the water pipe leaks due to the oil storage tank and its associated piping, valve breakage or corrosion, etc., It is not until after the leak has been significantly advanced.
In order to solve such a problem, a sensing device for water leakage detection is installed in the water pipe. However, the conventional sensing device is configured to detect whether the fluid is in contact or not by using the difference in resistance value between the contact and the non-contact state. Therefore, There was a difficulty in operating the system.
The background technology of the present application is disclosed in Korean Patent Laid-Open Publication No. 2004-0016513.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide a leak detection apparatus for detecting leakage of a substance according to the kind of a substance and a leak detection system including the same.
It should be understood, however, that the technical scope of the embodiments of the present invention is not limited to the above-described technical problems, and other technical problems may exist.
According to a first aspect of the present invention, there is provided a leak detection apparatus for detecting leakage of a contacted substance, the leakage detection apparatus comprising: A sensor unit for outputting a signal; A communication unit for transmitting the leak detection signal to the outside; And a power supply unit for supplying power to the sensor unit and the communication unit.
Further, a leakage detection system according to the second aspect of the present invention comprises: a leakage detection device according to the first aspect of the present invention; A detection collection device for receiving the leak detection signal and forming and transmitting information to the outside; And an external server for receiving the information transmitted by the detection and collection device.
The above-described task solution is merely exemplary and should not be construed as limiting the present disclosure. In addition to the exemplary embodiments described above, there may be additional embodiments in the drawings and the detailed description of the invention.
According to the above-mentioned problem solving means of the present invention, when the resistivity value of the contacted material is compared with the reference resistance value range and the resistivity value of the contacted material corresponds to the reference resistance value range, A leakage detection device and a leakage detection system that detect the leakage of the target material may be implemented according to the type of the target material.
1 is a schematic diagram for explaining a leak detection apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic front view showing a front view of an appearance of a leak detection device according to an embodiment of the present invention; FIG.
3 is a schematic diagram for explaining a leakage detection system including a leakage detection device according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.
Throughout this specification, when a part is referred to as being "connected" to another part, it is not limited to a case where it is "directly connected" but also includes the case where it is "electrically connected" do.
It will be appreciated that throughout the specification it will be understood that when a member is located on another member "top", "top", "under", "bottom" But also the case where there is another member between the two members as well as the case where they are in contact with each other.
Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.
The present disclosure relates to a leak detection apparatus and a leak detection system including the same.
First, a leak detection device (hereinafter referred to as a "
The
More specifically, the leak detection device (1) is applied to chemical tanks, oil (diesel, gasoline, kerosene, aviation oil, etc.) tanks used by chemical handling companies scattered in various industrial complexes, In order to quickly detect the leakage caused by the leak.
In particular, acidic chemicals and alkaline chemicals such as sulfuric acid, hydrochloric acid, and phosphoric acid pose a great risk to the human body and the environment when leaking. The leak detection device (1) quickly detects the leakage of such acidic chemicals and alkaline chemicals And can actively prevent water accidents such as safety accidents and marine and rivers and soil contamination.
FIG. 1 is a conceptual diagram for explaining the
Referring to Fig. 1, the
The reference resistance value range may mean a range of a resistance value that the present
In addition, the reference resistance value range may vary depending on the temperature, even if the components of the target substance are the same. Accordingly, the specific resistance value range of the target substance can be set in consideration of the ambient temperature formed at the position where the
Accordingly, the fact that the intrinsic resistance value of the object material corresponds to the reference resistance value range means that the intrinsic resistance value of the object material is included in the reference resistance value range.
The
Illustratively, when the
Illustratively, the reference resistance value range may be set to one or more of 1 k? To 250 k ?, 250 k? To 1 M ?, 1 to 5 M ?, and 5 to 50 M ?.
In this case, if the intrinsic resistance value of the substance sensed by the
For example, when the leak detection device is installed in a predetermined fluid storage facility and applied to detect leakage, the
For reference, the distillation water of the present invention corresponds to the distilled water, the distilled water, the distilled water, and the high-purity distilled water. Distilled water, activated carbon filter, ion exchange filter, semi-permeable membrane, etc., and quaternary distilled water having a purification process similar to that of a kind of chromatography may be regarded as high purity distilled water. Also as described above. Water is a substance having an intrinsic resistance value of 1 kΩ or more and 250 kΩ or less, a substance having an intrinsic resistance value of more than 1 MΩ and 5 MΩ or less, distilled water having a specific resistance value of more than 5 MΩ and 50 MΩ or less It can be classified according to the resistivity value.
Also, the
In addition, the
2, the
In addition, the reference resistance value range of the
1 and 2, the
In addition, the
1 and 2, the
In the
For example, if the leak detection signal is not output for one hour, the
The condition that the leak detection signal is not output for a predetermined time or longer is understood as a concept including the state where the
The
That is, in the present
In general, since the sensing device is composed of electronic parts and circuits, surges are frequently introduced when a lightning stroke, an overvoltage, or the like occurs, and the sensing device is frequently damaged. Particularly, in the case of breakage due to surge inflow, damage to IC devices, circuit diagrams, and other parts was accompanied, which made repair impossible or costly to repair.
In the present
The
1, the
As described above, in the present
For example, the oil storage tanks are installed at a considerable distance from the building. To install the leak detection device, a power line and a communication line are installed by installing several hundred meters. In order to install the leakage sensing device, Or installation of the electric pole stands up.
On the other hand, when the leakage is not detected, the
In addition, as described above, since the
That is, the
Also, when a plurality of leak detection devices are installed along a transfer line in a facility such as a railway or a large-scale transport pipe, a huge amount of time and cost can be incurred if the power connection or communication connection is made by wire. On the other hand, according to the
Further, when the
Meanwhile, in the first mode, the
In addition, in the second mode, the
In addition, after the leakage detection signal is output, the
That is, the self-generating unit 17 may have a first mode including a first sensing interval, and a self-generating capacity capable of covering a strategy usage amount in a second mode including a second sensing interval and a transmission interval. In other words, the self-generating portion 17 may have a self-generated amount capable of covering the amount of electric power used by being sensed according to the first sensing interval in the first mode. In addition, the self-power generating unit 17 may have a self-generated amount capable of covering an amount of electric power used when the second mode is sensed according to the second sensing interval and communication is performed according to a preset transmission interval.
The present
For example, when the
In addition, a plurality of
In addition, the
3 is a schematic diagram for explaining a leak detection system including the leakage detection device.
Referring to FIG. 3, an external device that receives the leak detection signal transmitted by the
Also, the detection and
In addition, the information transmitted by the detection and
The main
In addition, the present disclosure can provide a leak detection system according to an embodiment including the above-described
Here, the
The present
It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.
The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.
1: leak detection device 11: sensor part
111: sensitivity adjusting section 13: communication section
15: power supply unit 17:
3: detection collecting device 5: external server
9: Equipment
Claims (6)
A sensor section for outputting a leak detection signal for the contacted substance when the resistivity value of the contacted substance corresponds to the set reference resistance value range;
A communication unit for transmitting the leak detection signal to the outside;
A power supply unit for supplying power to the sensor unit and the communication unit; And
And a self-power generation unit for supplying power to the power supply unit through self-power generation using ECO energy,
Wherein the power supply unit is placed in a first mode in which power supply to the communication unit is interrupted to prevent surge inflow if the leakage detection signal is not output for a predetermined time or longer, In the second mode,
In the first mode, the sensor unit senses contact of a substance at a first predetermined sensing interval,
In the second mode, the sensor unit senses contact of a material at a second predetermined sensing interval, and the communication unit transmits the leakage sensing signal to the outside at a predetermined transmission interval,
Wherein the first sensing interval is set at an interval that covers the amount of power used by the self-generating unit in the first mode,
Wherein each of the second sensing interval and the transmission interval is set to an interval at which a power usage amount used in the second mode among the self generation amount by the self generation portion can be covered.
Wherein the reference resistance value range is set to one or more of 1 k? To 250 k ?, 250 k? To 1 M ?, 1 to 5 m? And 5?
If the intrinsic resistance value of the substance sensed by the sensor unit is not less than 1 k? And not more than 250 k ?, the contacted substance is determined as water,
If the intrinsic resistance value of the material sensed by the sensor unit is more than 250 k O and less than 1 M OMEGA, the contacted substance is determined to be one of hydrochloric acid, nitric acid,
If the intrinsic resistance value of the substance sensed by the sensor unit is more than 1 M OMEGA and 5 M OMEGA or less, the contacted substance is judged to be distilled water,
Wherein when the intrinsic resistance value of the substance sensed by the sensor unit is more than 5 M OMEGA and not more than 50 M OMEGA, the contacted substance is judged to be high purity distilled water.
Wherein the sensor section includes a sensitivity adjusting section that adjusts the reference resistance value range.
A leakage detection device according to claim 1;
A detection collection device for receiving the leak detection signal and forming and transmitting information to the outside; And
And an external server for receiving the information transmitted by the detection and collection device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160029598 | 2016-03-11 | ||
| KR20160029598 | 2016-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101662050B1 true KR101662050B1 (en) | 2016-10-04 |
Family
ID=57165271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160033124A KR101662050B1 (en) | 2016-03-11 | 2016-03-21 | Leakage detecting apparatus and leakage detecting system using the same |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101662050B1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101895835B1 (en) | 2018-04-11 | 2018-09-06 | 지케이엔지니어링(주) | Ground penetrating radar survey system |
| KR20180116762A (en) * | 2017-04-17 | 2018-10-25 | (주)드림팩토리 | Apparatus for sensing fluid leak |
| KR101999158B1 (en) | 2018-12-24 | 2019-07-11 | 지케이엔지니어링(주) | Cart-type surface transmission radar probe system |
| KR102015392B1 (en) | 2019-05-15 | 2019-08-28 | 지케이엔지니어링(주) | Power supply assistance for GPR probes |
| KR102039058B1 (en) * | 2019-01-16 | 2019-10-31 | (주)엔케이투 | Detection system and method for hazardous substance based on ubiquitous sensing |
| KR102041125B1 (en) | 2019-05-15 | 2019-11-06 | 지케이엔지니어링(주) | A Cavity Rapid Recovery System Using Liquidity Filling Materials |
| KR20200009314A (en) | 2018-07-18 | 2020-01-30 | 전남대학교산학협력단 | Sinkhole prediction system by measuring leakage of water supply and drainage |
| KR20230012769A (en) * | 2021-07-16 | 2023-01-26 | 목포해양대학교 산학협력단 | Wireless sensor system for dual piping using self-power generation |
| KR102669389B1 (en) | 2023-08-21 | 2024-05-27 | 지케이엔지니어링(주) | Cart-type sidewalk ground exploration device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025538B1 (en) * | 2009-12-14 | 2011-04-04 | 부영산전주식회사 | Device for sensing the leak of the pipe line |
| JP2013167552A (en) * | 2012-02-16 | 2013-08-29 | Railway Technical Research Institute | Leakage water component determination method using cell reaction due to water leakage of underground facility |
| KR20160006091A (en) * | 2014-07-08 | 2016-01-18 | (주)유민에쓰티 | Solution leakage detection apparatus |
-
2016
- 2016-03-21 KR KR1020160033124A patent/KR101662050B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101025538B1 (en) * | 2009-12-14 | 2011-04-04 | 부영산전주식회사 | Device for sensing the leak of the pipe line |
| JP2013167552A (en) * | 2012-02-16 | 2013-08-29 | Railway Technical Research Institute | Leakage water component determination method using cell reaction due to water leakage of underground facility |
| KR20160006091A (en) * | 2014-07-08 | 2016-01-18 | (주)유민에쓰티 | Solution leakage detection apparatus |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180116762A (en) * | 2017-04-17 | 2018-10-25 | (주)드림팩토리 | Apparatus for sensing fluid leak |
| KR102105180B1 (en) * | 2017-04-17 | 2020-04-28 | (주)드림팩토리 | Apparatus for sensing fluid leak |
| KR101895835B1 (en) | 2018-04-11 | 2018-09-06 | 지케이엔지니어링(주) | Ground penetrating radar survey system |
| KR20200009314A (en) | 2018-07-18 | 2020-01-30 | 전남대학교산학협력단 | Sinkhole prediction system by measuring leakage of water supply and drainage |
| KR101999158B1 (en) | 2018-12-24 | 2019-07-11 | 지케이엔지니어링(주) | Cart-type surface transmission radar probe system |
| KR102039058B1 (en) * | 2019-01-16 | 2019-10-31 | (주)엔케이투 | Detection system and method for hazardous substance based on ubiquitous sensing |
| WO2020149432A1 (en) * | 2019-01-16 | 2020-07-23 | (주)엔케이투 | Ubiquitous sensing-based hazardous substances leak detection system and method |
| KR102015392B1 (en) | 2019-05-15 | 2019-08-28 | 지케이엔지니어링(주) | Power supply assistance for GPR probes |
| KR102041125B1 (en) | 2019-05-15 | 2019-11-06 | 지케이엔지니어링(주) | A Cavity Rapid Recovery System Using Liquidity Filling Materials |
| KR20230012769A (en) * | 2021-07-16 | 2023-01-26 | 목포해양대학교 산학협력단 | Wireless sensor system for dual piping using self-power generation |
| KR102584728B1 (en) | 2021-07-16 | 2023-10-04 | 목포해양대학교 산학협력단 | Wireless sensor system for dual piping using self-power generation |
| KR102669389B1 (en) | 2023-08-21 | 2024-05-27 | 지케이엔지니어링(주) | Cart-type sidewalk ground exploration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101662050B1 (en) | Leakage detecting apparatus and leakage detecting system using the same | |
| US20230108605A1 (en) | Infrastructure monitoring devices, systems, and methods | |
| US10262518B2 (en) | Method of disseminating monitoring information relating to contamination and corrosion within an infrastructure | |
| US9212965B2 (en) | Leak detection device and remote monitoring system having slave controllers with unique IDs | |
| CA2654411C (en) | User interface for monitoring a plurality of faulted circuit indicators | |
| EP3422319A1 (en) | Infrastructure monitoring devices, systems, and methods | |
| AU2017248541B2 (en) | Infrastructure monitoring devices, systems, and methods | |
| KR100949428B1 (en) | System and method for remote monitoring gas supply apparatus | |
| US20070126421A1 (en) | Surveying of buried pipelines | |
| CN206694848U (en) | A kind of leak detecting device for gas pipeline | |
| GB2536019A (en) | Stopper safety system | |
| KR20160080354A (en) | Apparatus for communication wireless between inside of manhole and outside of manhole | |
| US7856157B2 (en) | Pipeline security system | |
| KR100406239B1 (en) | Water leakout detection and monitoring system | |
| CN110185936A (en) | A kind of gas transmission pipeline detection device | |
| CN205388231U (en) | Wireless power supply formula pipeline stress monitored control system | |
| KR101214763B1 (en) | Remote terminal unit having a impact sensing function | |
| Gour et al. | Review on gas leak detection techniques | |
| Ramaiah | Design of Early Gas Leakage Detection & Alarm System Using IoT | |
| CN103672410A (en) | Intelligent monitoring and early warning system for pipeline safety | |
| KR102310134B1 (en) | System of alarm and leakage detecting for underground hot water pipe | |
| KR102353543B1 (en) | Groundwater and soil real-time oil leak detection control system and method | |
| CN216896829U (en) | Safety monitoring device for natural gas pipeline | |
| JP6923032B2 (en) | Inundation monitoring system | |
| KR20190012785A (en) | Test Box Remote Monitoring System For Measuring Protective Potential Base On NarrowBand Internet Of Things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20170811 Year of fee payment: 8 |