CN116526405B - Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions - Google Patents
Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions Download PDFInfo
- Publication number
- CN116526405B CN116526405B CN202310803059.3A CN202310803059A CN116526405B CN 116526405 B CN116526405 B CN 116526405B CN 202310803059 A CN202310803059 A CN 202310803059A CN 116526405 B CN116526405 B CN 116526405B
- Authority
- CN
- China
- Prior art keywords
- fixed
- sleeve
- cable
- communication
- temperature measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 19
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 17
- 230000006870 function Effects 0.000 title claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 21
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000011835 investigation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
Abstract
The invention provides an ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions. Including the sleeve pipe and place the piece, sheathed tube inner wall is fixed with solid fixed ring, and gu fixed ring's inner wall is fixed with the sheetmetal through the spring leaf, be fixed with temperature sensor on the sheetmetal, be fixed with the link through the fixed block on the sleeve pipe, be fixed with first spool on the link, and be fixed with the second spool on the sleeve pipe, all run through in first spool and the second spool has power cord and signal line. The ultra-low power consumption cable protective sleeve with the functions of communication, temperature measurement and positioning solves the problems that when the investigation and maintenance are carried out, the cable needs to be excavated section by section to carry out sectional search, but the thick cable is heavy and difficult to excavate, and multiple people are required to arrange the cable for each excavation section, so that the investigation process is very troublesome, the labor is wasted, and the maintenance progress is greatly influenced.
Description
Technical Field
The invention relates to the field of cable protection sleeves, in particular to an ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions.
Background
A cable protective sleeve is a tubular material used to protect cables from physical and environmental damage. The cable protection sleeve is generally made of wear-resistant, corrosion-resistant and high-temperature-resistant materials, such as polyvinyl chloride (PVC), polyester (PET) or Polyurethane (PU), can prevent the cable from being damaged by physical impact, extrusion, shearing and the like in the construction, installation and use processes, can increase the mechanical strength and durability of the cable, prolongs the service life of the cable, has good waterproof and dampproof properties, can effectively prevent moisture, humidity and humidity from invading the cable, thereby protecting conductors and insulating materials inside the cable, has good corrosion resistance, can prevent damage to the cable caused by acid and alkali, chemical substances and other corrosive mediums, can provide an additional insulating layer, can ensure that the cable is safer and more reliable, has good flame retardant property, can reduce the occurrence and spreading risk of fire, and is important to select proper cable protection sleeve materials and specifications according to specific application requirements and environmental conditions.
When the cable operation trouble, most because cable internal short circuit high temperature fusing cable in the twinkling of an eye causes the circuit break, when carrying out investigation maintenance, need one section excavate the cable, carry out the segmentation and seek, but thick cable weight is big, and is difficult to excavate, and every excavation one section all needs many people to arrange the cable in order, and the investigation process is very troublesome, extravagant manpower, influences the maintenance progress greatly.
Therefore, it is necessary to provide an ultra-low power consumption cable protective sleeve with communication, temperature measurement and positioning functions to solve the above technical problems.
Disclosure of Invention
The invention provides an ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions, which solves the problems that when checking and maintaining are carried out, cables are required to be excavated section by section to be searched in sections, but thick cables are heavy and are not easy to excavate, and a plurality of people are required to arrange the cables for each section to excavate, so that the checking process is very troublesome, labor is wasted, and the maintenance progress is greatly influenced.
In order to solve the technical problems, the ultra-low power consumption cable protective sleeve with the functions of communication, temperature measurement and positioning comprises a sleeve and a placing sheet, wherein a fixing ring is fixed on the inner wall of the sleeve, a metal sheet is fixed on the inner wall of the fixing ring through a spring piece, and a temperature sensor is fixed on the metal sheet;
a connecting frame is fixed on the sleeve through a fixing block, a first wire pipe is fixed on the connecting frame, a second wire pipe is fixed on the sleeve, and a power wire and a signal wire are respectively penetrated in the first wire pipe and the second wire pipe;
the top of placing the piece is fixed with the GPS locator, and the bottom of placing the piece is fixed with the draw-in bar.
Further, a control box is fixed on the sleeve, and a singlechip, an A/D converter and a memory are arranged in the control box.
Further, the surface of the metal sheet is provided with balls.
Further, the sleeve is made of polyvinyl chloride.
Further, the metal sheet is made of heat-conducting metal.
Further, the connecting frames are U-shaped, and the number of the connecting frames is two.
Further, the number of the placing pieces is two.
Further, the output end of the temperature sensor is electrically connected with the input end of the A/D converter, the output end of the A/D converter is electrically connected with the input end of the singlechip, and the singlechip is respectively in bidirectional connection with the GPS locator, the memory and the terminal.
Compared with the related art, the ultralow-power-consumption cable protection sleeve with the functions of communication, temperature measurement and positioning has the following beneficial effects:
the invention provides an ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions, a metal sheet drives the metal sheet to cling to the surface of a cable through spring leaf elasticity, heat generated by the cable is conducted on a temperature sensor through the metal sheet, the temperature sensor detects temperature data, when the cable is subjected to local temperature abnormality and damage and short-circuit faults, maintenance and investigation are conducted on the cable, a singlechip is controlled through terminal communication, the temperature data in a memory is checked, the temperature sensor with the abnormal temperature is found, the position is judged to be a fault position, the singlechip is controlled to start two GPS positioners, the sleeve position of the fault cable is obtained, the specific position of the fault position of the cable is rapidly positioned through the temperature sensor with the abnormal temperature, and excavation and maintenance are conducted on the cable at the position, so that the problems that when the investigation and maintenance are conducted, the cable needs to be excavated one section by one section, the cable is segmented and found out, but the thick cable is heavy and difficult to excavate, the cable needs multiple people to finish the cable, the investigation process is very troublesome, labor is wasted, and the maintenance progress is greatly influenced are solved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an ultra-low power cable protection sleeve with communication, temperature measurement and positioning functions according to the present invention;
FIG. 2 is a cross-sectional view of the sleeve of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a block diagram of the placemat and GPS locator of FIG. 1;
FIG. 5 is an interior view of the control box of FIG. 1;
fig. 6 is a schematic diagram of the operation of the present invention shown in fig. 1.
Reference numerals in the drawings: 1. the device comprises a sleeve, 2, a placing sheet, 3, a fixing ring, 4, a spring piece, 5, a metal sheet, 6, a temperature sensor, 7, a fixing block, 8, a connecting frame, 9, a first wire pipe, 10, a second wire pipe, 11, a signal wire, 12, a GPS (global positioning system) locator, 13, a clamping rod, 14, a control box, 15, a singlechip, 16, an A/D converter, 17, a memory, 18 and a ball.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
Referring to fig. 1-6, an ultra-low power consumption cable protection sleeve with communication, temperature measurement and positioning functions comprises a sleeve 1 and placement pieces 2, wherein the sleeve 1 is made of polyvinyl chloride, the number of the placement pieces 2 is two, a fixing ring 3 is fixed on the inner wall of the sleeve 1, a metal sheet 5 is fixed on the inner wall of the fixing ring 3 through a spring piece 4, the metal sheet 5 is made of heat-conducting metal, balls 18 are arranged on the surface of the metal sheet 5, a cable is conveniently penetrated through the sleeve 1 through the balls 18, a temperature sensor 6 is fixed on the metal sheet 5, the temperature sensor 6 is protected, the cable heat is indirectly conducted through the metal sheet 5, the temperature is detected, the model of the temperature sensor 6 is JCJ175A, five to seven temperature sensors 6 are arranged on each sleeve 1, and a space between the two temperature sensors 6 is 1-2 meters;
according to the invention, a connecting frame 8 is fixed on a sleeve 1 through a fixing block 7, the connecting frame 8 is U-shaped, the number of the connecting frames 8 is two, the sleeve 1 is adjusted through the connecting frame 8, the top of the connecting frame 8 is guaranteed to be upwards placed, a first wire tube 9 is fixed on the connecting frame 8, a second wire tube 10 is fixed on the sleeve 1, a power wire and a signal wire 11 penetrate through the first wire tube 9 and the second wire tube 10, the power wire supplies power to a singlechip 15, a temperature sensor 6, a GPS (global positioning system) positioner 12, an A/D (analog/digital) converter 16 and a memory 17, and signal transmission is carried out through the signal wire 11;
as shown in fig. 4, a GPS positioner 12 is fixed at the top of a placing sheet 2, the positioning is performed by the GPS positioner 12, a clamping rod 13 is fixed at the bottom of the placing sheet 2, the placing sheet 2 is placed on the ground, the placing sheet 2 is correspondingly placed at two ends of a sleeve 1, and the clamping rod 13 at the bottom of the placing sheet 2 is inserted into the ground and fixed by pouring cement;
as shown in fig. 5, a control box 14 is fixed on a sleeve 1, a single chip microcomputer 15, an a/D converter 16 and a memory 17 are arranged in the control box 14, the single chip microcomputer 15 is of the model of SMC62, the model of the a/D converter 16 is LM331, temperature data detected by a temperature sensor 6 are converted into electric signals through the a/D converter 16 and are transmitted into the single chip microcomputer 15, the model of the memory 17 is XBOX360, and the data detected by each temperature sensor 6 are recorded through the data of the memory 17;
as shown in fig. 6, the output end of the temperature sensor 6 is electrically connected with the input end of the a/D converter 16, the output end of the a/D converter 16 is electrically connected with the input end of the singlechip 15, and the singlechip 15 is respectively connected with the GPS locator 12, the memory 17 and the terminal in a bidirectional manner;
the working principle of the ultra-low power consumption cable protective sleeve with the functions of communication, temperature measurement and positioning provided by the invention is as follows: when a cable is laid, the cable passes through the inside of the sleeve 1, then the sleeve 1 is laid, the sleeve 1 is adjusted through the connecting frame 8, the top of the connecting frame 8 is guaranteed to be placed upwards, the laid sleeve 1 is buried or fixed, the placing pieces 2 are placed on the ground, the placing pieces 2 are correspondingly placed at the two ends of the sleeve 1, and the clamping rods 13 at the bottoms of the placing pieces 2 are inserted into the ground and are fixed by pouring cement;
when the cable runs and works, the metal sheet 5 drives the metal sheet 5 to cling to the surface of the cable through the elasticity of the spring piece 4, heat generated by the cable is conducted onto the temperature sensor 6 through the metal sheet 5, the temperature sensor 6 detects that temperature data is converted into an electric signal through the A/D converter 16, the electric signal is transmitted into the singlechip 15, the data is transmitted into a terminal through the memory 17, and meanwhile, the data is transmitted to the terminal through the signal wire 11,
when the cable is in local temperature abnormality, damage and short-circuit fault, the cable is maintained and checked, the temperature data in the memory 17 is checked through the terminal communication control singlechip 15, the temperature sensor 6 with abnormal temperature is found, the position is judged to be a fault position, the singlechip 15 is controlled to start two GPS positioners 12, the position of the sleeve 1 of the fault cable is obtained, the specific position of the fault position of the cable is rapidly positioned through the temperature sensor 6 with abnormal temperature, and the cable at the position is excavated and maintained.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (4)
1. The utility model provides an ultralow power consumption cable protection sleeve with communication, temperature measurement, locate function, its characterized in that includes sleeve pipe (1) and places piece (2), the inner wall of sleeve pipe (1) is fixed with solid fixed ring (3), and gu the inner wall of fixed ring (3) is fixed with sheetmetal (5) through spring leaf (4), sheetmetal (5) drive sheetmetal (5) through spring leaf (4) elasticity and hug closely the surface of cable, be fixed with temperature sensor (6) on sheetmetal (5), be provided with five to seven temperature sensor (6) on every sleeve pipe 1 to interval 1-2 meters between two temperature sensor (6);
a connecting frame (8) is fixed on the sleeve (1) through a fixing block (7), a first wire tube (9) is fixed on the connecting frame (8), a second wire tube (10) is fixed on the sleeve (1), and a power wire and a signal wire (11) are respectively penetrated in the first wire tube (9) and the second wire tube (10);
the top of the placing piece (2) is fixedly provided with a GPS (global positioning system) positioner (12), the bottom of the placing piece (2) is fixedly provided with clamping rods (13), the placing piece (2) is correspondingly placed at two ends of the sleeve (1), and the clamping rods (13) at the bottom of the placing piece (2) are inserted into the ground and are fixed by pouring cement;
a control box (14) is fixed on the sleeve (1), and a singlechip (15), an A/D converter (16) and a memory (17) are arranged in the control box (14);
the surface of the metal sheet (5) is provided with balls (18);
the output end of the temperature sensor (6) is electrically connected with the input end of the A/D converter (16), the output end of the A/D converter (16) is electrically connected with the input end of the singlechip (15), and the singlechip (15) is respectively connected with the GPS (global positioning system) locator (12), the memory (17) and the terminal in a bidirectional manner;
the metal sheet (5) is made of heat-conducting metal.
2. The ultra-low power consumption cable protective sleeve with the functions of communication, temperature measurement and positioning according to claim 1, wherein the sleeve (1) is made of polyvinyl chloride.
3. The ultra-low power consumption cable protective sleeve with the functions of communication, temperature measurement and positioning according to claim 1, wherein the connecting frames (8) are U-shaped, and the number of the connecting frames (8) is two.
4. An ultra-low power consumption cable protective sleeve with communication, temperature measurement and positioning functions according to claim 1, wherein the number of the placing pieces (2) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310803059.3A CN116526405B (en) | 2023-07-03 | 2023-07-03 | Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310803059.3A CN116526405B (en) | 2023-07-03 | 2023-07-03 | Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116526405A CN116526405A (en) | 2023-08-01 |
| CN116526405B true CN116526405B (en) | 2024-01-09 |
Family
ID=87406766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310803059.3A Active CN116526405B (en) | 2023-07-03 | 2023-07-03 | Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116526405B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186965A (en) * | 1998-12-22 | 2000-07-04 | Toyotsu Engineering Kk | Connector for temperature sensing element |
| CN104777336A (en) * | 2014-01-15 | 2015-07-15 | 尼克桑斯公司 | Underground high-voltage electrical line |
| KR101656787B1 (en) * | 2016-03-14 | 2016-09-12 | 이경연 | Equipment for fixign a subterranean line |
| CN208902302U (en) * | 2018-09-27 | 2019-05-24 | 北京国电龙源环保工程有限公司 | A kind of device for measuring temperature of cable joint |
| CN212811263U (en) * | 2020-08-26 | 2021-03-26 | 福建久信科技有限公司 | Novel T-shaped cable joint |
| CN215733423U (en) * | 2020-12-23 | 2022-02-01 | 国网山西省电力公司大同供电公司 | Cable joint protector |
| CN114188081A (en) * | 2021-12-28 | 2022-03-15 | 江苏国宁电缆有限公司 | Smart cable with cable conductivity state fed back in real time |
| CN114865578A (en) * | 2022-05-16 | 2022-08-05 | 广东电网有限责任公司东莞供电局 | Intelligent cable joint explosion-proof equipment |
| WO2022208103A1 (en) * | 2021-03-31 | 2022-10-06 | Philip Head | Metal to metal encapsulated electrical power cable system for esp and other applications |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230101179A1 (en) * | 2021-09-30 | 2023-03-30 | Rosemount Inc. | Heat flux temperature sensor probe for non-invasive process fluid temperature applications |
-
2023
- 2023-07-03 CN CN202310803059.3A patent/CN116526405B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186965A (en) * | 1998-12-22 | 2000-07-04 | Toyotsu Engineering Kk | Connector for temperature sensing element |
| CN104777336A (en) * | 2014-01-15 | 2015-07-15 | 尼克桑斯公司 | Underground high-voltage electrical line |
| KR101656787B1 (en) * | 2016-03-14 | 2016-09-12 | 이경연 | Equipment for fixign a subterranean line |
| CN208902302U (en) * | 2018-09-27 | 2019-05-24 | 北京国电龙源环保工程有限公司 | A kind of device for measuring temperature of cable joint |
| CN212811263U (en) * | 2020-08-26 | 2021-03-26 | 福建久信科技有限公司 | Novel T-shaped cable joint |
| CN215733423U (en) * | 2020-12-23 | 2022-02-01 | 国网山西省电力公司大同供电公司 | Cable joint protector |
| WO2022208103A1 (en) * | 2021-03-31 | 2022-10-06 | Philip Head | Metal to metal encapsulated electrical power cable system for esp and other applications |
| CN114188081A (en) * | 2021-12-28 | 2022-03-15 | 江苏国宁电缆有限公司 | Smart cable with cable conductivity state fed back in real time |
| CN114865578A (en) * | 2022-05-16 | 2022-08-05 | 广东电网有限责任公司东莞供电局 | Intelligent cable joint explosion-proof equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116526405A (en) | 2023-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3319091B1 (en) | Deh piggyback cable | |
| EP3063519B1 (en) | Pipeline apparatus and method | |
| CN205826920U (en) | Combination has the load-carrying bundle of elongated member, electric power umbilical cord and the umbilical cord of Connectorized fiber optic cabling | |
| US11482844B2 (en) | Monitoring system of cable laying state | |
| KR100754280B1 (en) | System and method for detecting a partial discharge of a powercable | |
| CN201886828U (en) | Photoelectric composite cable with temperature and stress distributively monitored at same time | |
| JPH05507975A (en) | Video logging device with remote power supply | |
| CN111354510B (en) | Distributed sensing load-bearing detection cable | |
| BR102012016594A2 (en) | ELECTRIC HEATING SYSTEM FOR A FLUID TRANSPORT PIPE SECTION, SECTION AND PIPE EQUIPPED WITH SUCH ELECTRIC HEATING SYSTEM | |
| US20030081917A1 (en) | Method and apparatus for fiber optic monitoring of downhole power and communication conduits | |
| BRPI0707981A2 (en) | fault detection system | |
| CN105098695B (en) | A kind of intelligently realizing explosion-proof system and control method | |
| CN116526405B (en) | Ultralow-power-consumption cable protection sleeve with communication, temperature measurement and positioning functions | |
| CN201213075Y (en) | Electric cable having real-time temperature measuring function | |
| AU2022347096A1 (en) | Cable monitoring apparatus and method | |
| CN105683734A (en) | Detection apparatus and method | |
| WO2011046463A1 (en) | Fluid pipe and method for detecting a deformation on the fluid pipe | |
| CN102507042B (en) | Method for embedding optical fiber sensor in intelligent grid power cable | |
| CN109036676B (en) | Photoelectric composite load-bearing detection cable for combustible ice exploitation | |
| CN104564032A (en) | Portable down-hole drilling on-way temperature measuring instrument | |
| KR100879035B1 (en) | Multi-complex cable for sensing cable temperature and cable case | |
| Inaudi et al. | Distributed fiber-optic sensing for long-range monitoring of pipelines | |
| KR102236338B1 (en) | System for Monitoring Temperature of Busduct | |
| CN108878041B (en) | Load-bearing detection cable for intelligent measuring instrument and meter | |
| KR102325499B1 (en) | Superconducting power system and refrigerant withdrawing pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |