CN103245326A - Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring - Google Patents
Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring Download PDFInfo
- Publication number
- CN103245326A CN103245326A CN2013101896337A CN201310189633A CN103245326A CN 103245326 A CN103245326 A CN 103245326A CN 2013101896337 A CN2013101896337 A CN 2013101896337A CN 201310189633 A CN201310189633 A CN 201310189633A CN 103245326 A CN103245326 A CN 103245326A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- inclination angle
- jacket platform
- data
- jacket
- 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.)
- Pending
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Alarm Systems (AREA)
Abstract
The invention relates to a device and a method for monitoring the subsidence of a jacket platform based on inclination angle monitoring, which belong to the technical field of monitoring of jacket platforms. The device comprises inclination angle sensors, transmission wire cables, a data acquisition mechanism and a host monitor, wherein the inclination angle sensors are connected with the data acquisition mechanism which is connected with the host monitor; and spud legs and cross beams between the spud legs are arranged on the jacket platform, and the inclination angle sensors are installed on the cross beams of the jacket platform. In the method, the inclination angle sensors are arranged on the cross beams of the jacket platform, the host monitor acquires inclination angle signal data of the inclination angle sensors on the jacket platform in real time through the data acquisition mechanism, and the comparative analysis is carried out on the inclination angle signal data and a preset value for monitoring the subsidence of the jacket platform. The device and the method have the advantages of convenience in monitoring, real-time on-line monitoring, quick response, accurate data, graded pre-warning, security, reliability and the like.
Description
Technical field
The invention belongs to the jacket platform monitoring technical field, particularly relate to a kind of jacket platform settlement monitoring device and monitoring method thereof based on the inclination angle monitoring.
Background technology
At present, jacket platform claims the pile foundation type platform again, is that present offshore oilfield uses the most extensive also the most ripe a kind of platform structure.Jacket platform structure long service is in abominable marine environment, and be subjected to the reciprocation of various load, as wind load, ocean current, seaway load, ice load etc., sometimes also will be subjected to unexpected stormses such as earthquake, typhoon, tsunami, foul, structure itself will suffer also that environmental corrosion, sea life adhere to, the influence of seafloor scour etc.Under the long term of these rugged environment load, be easy to generate various forms of damages, structure bearing capacity is descended, platform is constituted potential threat, the serious platform that also can cause lost efficacy.So far, for the safe on-line monitoring of jacket platform structure, also do not have the monitoring system of the maturation of architectonical to use, monitor untimely, can't classifying alarm, have problems such as jacket platform work production safety hidden danger.
Summary of the invention
The present invention provides a kind of jacket platform settlement monitoring device and monitoring method thereof based on the inclination angle monitoring for solving the technical matters that exists in the known technology.
The objective of the invention is at jacket platform foundation bearing capacity deficiency, the jacket platform non-uniform settling situation that situations such as pile foundation slide stake cause, by the high precision dip monitoring sensor, the non-uniform settling situation of jacket platform is carried out the monitoring of real-time online.
One of purpose of the present invention provides that a kind of simple in structure, monitoring convenience, real-time online, response are fast, the jacket platform settlement monitoring device of monitoring based on the inclination angle of grading forewarning system, characteristics such as safe and reliable.
The present invention is based on the technical scheme that the jacket platform settlement monitoring device of inclination angle monitoring takes is:
Jacket platform settlement monitoring device based on the inclination angle monitoring is characterized in: monitoring device comprises obliquity sensor, transmission cable, data acquisition mechanism and monitoring main frame; Obliquity sensor is connected the data collecting mechanism by transmission cable with demodulating equipment, data acquisition mechanism connects the monitoring main frame by transmission cable or wireless mode; Jacket platform is provided with crossbeam between spud leg and spud leg, and obliquity sensor is installed on the crossbeam of jacket platform, is used for sensing catheter body panel inclination angle angle.
The jacket platform settlement monitoring device that the present invention is based on the inclination angle monitoring can also adopt following technical scheme:
Described jacket platform settlement monitoring device based on the inclination angle monitoring, be characterized in: data acquisition mechanism comprises data acquisition subsystem and data transmission subsystem two parts; Each sensor that data acquisition subsystem is installed whole platform carries out real-time data acquisition and demodulation, and data transmission subsystem communication cable transmission data are given monitoring host computer.
Described jacket platform settlement monitoring device based on the inclination angle monitoring, be characterized in: monitoring device is equipped with alarm mechanism, and alarm mechanism is connected with the monitoring main frame.
Two of purpose of the present invention provide a kind of implement convenience, real-time online, monitoring accurately, the jacket platform settlement monitoring method based on the inclination angle monitoring of characteristics such as responding fast, grading forewarning system and monitoring efficient height.
The present invention is based on the technical scheme that the jacket platform settlement monitoring method of inclination angle monitoring takes is:
A kind of jacket platform settlement monitoring method based on the inclination angle monitoring, be characterized in: jacket platform settlement monitoring step comprises: lay the obliquity sensor at sensing catheter body panel angle of inclination at the crossbeam of jacket platform, the monitoring main frame connects data collecting mechanism and obliquity sensor by transmission cable or wireless mode; The monitoring main frame is gathered the inclination angle angle signal data that are installed in jacket platform top rade sensor in real time by data acquisition mechanism, and angle signal data and preset value are analyzed, and carries out the jacket platform settlement monitoring.
The jacket platform settlement monitoring method that the present invention is based on the inclination angle monitoring can also adopt following technical scheme:
Described jacket platform settlement monitoring method based on the inclination angle monitoring, be characterized in: after the inclination angle angle signal data of the real-time collection tube body panel of monitoring main frame top rade sensor, calibrate earlier, signal processing, the quality of data and reliability testing, take out useful inclination angle angle signal data and the contrast that the jacket platform limit inclination angle angle value that sets in advance carries out, the jacket platform sedimentation situation of platform is carried out early warning.
Described jacket platform settlement monitoring method based on the inclination angle monitoring, be characterized in: during contrast that inclination angle angle signal data and the jacket platform limit inclination angle angle value that sets in advance carry out, when the inclination angle angle value of surveying surpasses the jacket platform limit inclination angle angle value set in advance, monitoring host computer starts warning device, and the safety case of jacket platform is reported to the police.
Hardware monitoring system involved in the present invention consists of the following components:
1. high-precision tilt angle sensor
Carry out inclination angle monitoring, can detect the inclination information of experiencing the measured point in real time, and according to certain rules it is for conversion into electric signal and transmits.Monitoring range is twin shaft ± 90 °, and resolution is ± 0.001 °, has anticorrosion, and shock proof characteristics are applicable to the physical environment that ocean platform is abominable.
2. data acquisition system (DAS)
Comprise data acquisition subsystem and data transmission subsystem two parts.At first, the data of each sensor that whole platform is installed gather real-time data acquisition and the demodulation work of the line sensor of going forward side by side, and subsequently, the data that obtain are transferred to monitoring host computer by communication cable carry out data analysis and work for the treatment of.
3. supervisory system
Supervisory system is responsible for data analysis and the storage work of total system.System by the data to real-time collection calibrate, process such as signal processing, the quality of data and reliability testing, in various available modes data are handled, are compiled.At last, extract useful data and carry out contrast with preset value, when the angle of surveying surpassed default alarming value, supervisory system namely started warning device, and the safety case of jacket platform is carried out early warning.
4. communication cable
Connect monitoring host computer and obliquity sensor, carry out the signal transmission, as environment do not allow or optical fiber and main frame when long, can use wireless mode instead and transmit.
5. monitoring software
Abundant graphic interface is provided, for user's operation, can shows and handle monitor data in real time, the Treatment Analysis result is shown with figure or diagrammatic form; Can also divide different brackets to set early warning value by size and the angle calculation at monitored platform, realize warning function.
The concrete steps that the inventive method is implemented are as follows:
1. calculate at the angle of inclination
At tested platform, be foundation with jacket platform structural design standard, platform single pile tolerance limit settling amount is 10 centimetres, adopt certain safety coefficient, when admissible limit settling amount is taken place separately in each spud leg, applied numerical model calculates the situation of the inclination maximum of the crossbeam between the adjacent spud leg, and this angle as early warning value, is inputed in the monitoring software.
2. laying obliquity sensor
On the crossbeam that connects between the spud leg at splash zone, lay obliquity sensor, and carry out outer protection work, guarantee the operation that it is can be in the environment of ocean platform good; Simultaneously transmission cable is caused the upper deck, carry out the fixing and protection work of cable.
3. connect data acquisition system (DAS) and supervisory system
On the upper deck, laid data acquisition system (DAS), the transmission cable of each sensor is connected to the collection terminal of data acquisition system (DAS), at this moment, only there is a cable that data transmission to supervisory system is got final product; Supervisory system is arranged in the Control Room of jacket platform, links to each other with data acquisition system (DAS) by transmission cable.
4. system debug and parameter setting
By monitoring software, sensor is carried out work such as parameter setting and zeroing, the angle of inclination numerical value that then first step is calculated is entered in the monitoring software, thereby determines corresponding warning critical value.
5. real-time monitoring catheter body panel sedimentation situation.
Advantage and good effect that the present invention has are:
Based on the jacket platform settlement monitoring device of inclination angle monitoring and monitoring method thereof owing to adopted brand-new technology scheme of the present invention, compared with prior art, the present invention applies to the high-precision tilt angle monitoring technology in the non-uniform settling monitoring of jacket platform, based on the numerical simulation calculation to tested platform, according to the maximum admissible limit settling amount of single pile, determine the admissible non-uniform settling amount of platform, and with the angle of inclination of its equivalence to each crossbeam, monitor.Use this method to carry out in real time the non-uniform settling situation of jacket platform, continuously, effectively monitoring, filled up present blank at jacket platform safety monitoring field, it has response soon, real-time online, characteristics such as grading forewarning system have fully ensured the safety that jacket platform work is produced.
Description of drawings
Fig. 1 is based on the jacket platform settlement monitoring apparatus structure synoptic diagram of inclination angle monitoring;
Fig. 2 is jacket platform top rade sensor of the present invention installation site synoptic diagram.
Among the figure, 1-industrial computer, 2-monitoring host computer, 3-communication cable, 4-data acquisition system (DAS), 5-obliquity sensor, the spud leg of 6-jacket platform, the crossbeam between 7-jacket platform spud leg
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
A kind of jacket platform settlement monitoring device based on the inclination angle monitoring comprises obliquity sensor, transmission cable, data acquisition mechanism and monitoring main frame; Obliquity sensor is connected the data collecting mechanism by transmission cable with demodulating equipment, data acquisition mechanism connects the monitoring main frame by transmission cable or wireless mode; Jacket platform is provided with crossbeam between spud leg and spud leg, and obliquity sensor is installed on the crossbeam of jacket platform, is used for sensing catheter body panel inclination angle angle.
Data acquisition mechanism comprises data acquisition subsystem and data transmission subsystem two parts; Each sensor that data acquisition subsystem is installed whole platform carries out real-time data acquisition and demodulation, and data transmission subsystem communication cable transmission data are given monitoring host computer.Monitoring device is equipped with alarm mechanism, and alarm mechanism is connected with the monitoring main frame.
A kind of jacket platform settlement monitoring method based on the inclination angle monitoring, be characterized in: lay the obliquity sensor at sensing catheter body panel angle of inclination at the crossbeam of jacket platform, the monitoring main frame connects data collecting mechanism and obliquity sensor by transmission cable or wireless mode; The monitoring main frame is gathered the inclination angle angle signal data that are installed in jacket platform top rade sensor in real time by data acquisition mechanism, and angle signal data and preset value are analyzed, and carries out the jacket platform settlement monitoring.
After the inclination angle angle signal data of the real-time collection tube body panel of monitoring main frame top rade sensor, calibrate earlier, signal processing, the quality of data and reliability testing, the contrast that the jacket platform limit inclination angle angle value that takes out useful inclination angle angle signal data and set in advance carries out, when the inclination angle angle value of surveying surpasses the jacket platform limit inclination angle angle value set in advance, monitoring host computer starts warning device, and the safety case of jacket platform is reported to the police.
The specific implementation process of present embodiment:
As shown in Figure 1, the jacket platform settlement monitoring device based on the inclination angle monitoring comprises industrial computer 1, monitoring host computer 2, communication cable 3, data acquisition system (DAS) 4 and high-precision tilt angle sensor 5.Monitoring host computer 2 comprises hardware system and software systems such as data processing and control subsystem, structural safety early warning evaluation subsystem, database subsystem, links to each other with industrial computer 1, is positioned in the Central Control Room.Data acquisition system (DAS) 4 comprises hub, amplifier, and coupling mechanism, processor, power-supply unit and demodulation module use communication cable 3 to be connected with high-precision tilt angle sensor 5 with monitoring host computer 2, are positioned on the deck integrant hardware monitoring system.
See figures.1.and.2, as follows based on the concrete implementation step of the jacket platform settlement monitoring of inclination angle monitoring:
1. calculate at the angle of inclination
At tested platform, be foundation with jacket platform structural design standard, platform single pile tolerance limit settling amount is 10 centimetres, the safety coefficient that adopts is 2.0, when namely 5 centimetres of admissible limit settling amounts being taken place separately in each spud leg, applied numerical model calculates the situation of the inclination maximum of the crossbeam between the adjacent spud leg, and this angle as early warning value, is inputed in the monitoring software.
2. laying obliquity sensor
With high-precision tilt angle sensor 5 mode by welding, be laid in the centre position of the crossbeam 7 between connecting duct body panel spud leg, and carry out outer protection work, guarantee the operation that it is can be in the environment of ocean platform good; Simultaneously transmission cable is caused the upper deck, carry out the fixing and protection work of cable.
3. connect data acquisition system (DAS) and supervisory system
On the upper deck, laid data acquisition system (DAS) 4, the transmission cable of each high-precision tilt angle sensor 5 is connected to the collection terminal of data acquisition system (DAS) 4, at this moment, only there is a communication cable 3 that data transmission to monitoring host computer 2 is got final product; Monitoring host computer 2 is arranged in the Control Room of jacket platform, links to each other with data acquisition system (DAS) 4 by communication cable 3.
4. system debug and parameter setting
By monitoring software, sensor is carried out work such as parameter setting and zeroing, the angle of inclination numerical value that then first step is calculated is entered in the monitoring software, thereby determines corresponding warning critical value.
5. begin the sedimentation situation of jacket is monitored in real time.
Present embodiment can carry out in real time the non-uniform settling situation of jacket platform, continuously, monitoring effectively, have that response is fast, characteristics such as real-time online and grading forewarning system, guaranteed jacket platform work production safety.
Claims (6)
1. based on the jacket platform settlement monitoring device of inclination angle monitoring, it is characterized in that: monitoring device comprises obliquity sensor, transmission cable, data acquisition mechanism and monitoring main frame; Obliquity sensor is connected the data collecting mechanism by transmission cable with demodulating equipment, data acquisition mechanism connects the monitoring main frame by transmission cable or wireless mode; Jacket platform is provided with crossbeam between spud leg and spud leg, and obliquity sensor is installed on the crossbeam of jacket platform, is used for sensing catheter body panel inclination angle angle.
2. the jacket platform settlement monitoring device based on inclination angle monitoring according to claim 1, it is characterized in that: data acquisition mechanism comprises data acquisition subsystem and data transmission subsystem two parts; Each sensor that data acquisition subsystem is installed whole platform carries out real-time data acquisition and demodulation, and data transmission subsystem communication cable transmission data are given monitoring host computer.
3. the jacket platform settlement monitoring device based on inclination angle monitoring according to claim 1 and 2, it is characterized in that: monitoring device is equipped with alarm mechanism, alarm mechanism with monitor main frame and be connected.
4. based on the jacket platform settlement monitoring method of inclination angle monitoring, it is characterized in that: jacket platform settlement monitoring step comprises: lay the obliquity sensor at sensing catheter body panel angle of inclination at the crossbeam of jacket platform, the monitoring main frame connects data collecting mechanism and obliquity sensor by transmission cable or wireless mode; The monitoring main frame is gathered the inclination angle angle signal data that are installed in jacket platform top rade sensor in real time by data acquisition mechanism, and angle signal data and preset value are analyzed, and carries out the jacket platform settlement monitoring.
5. the jacket platform settlement monitoring method based on inclination angle monitoring according to claim 4, it is characterized in that: after the inclination angle angle signal data of the real-time collection tube body panel of monitoring main frame top rade sensor, calibrate earlier, signal processing, the quality of data and reliability testing, take out useful inclination angle angle signal data and the contrast that the jacket platform limit inclination angle angle value that sets in advance carries out, the jacket platform sedimentation situation of platform is carried out early warning.
6. the jacket platform settlement monitoring method based on inclination angle monitoring according to claim 5, it is characterized in that: during contrast that inclination angle angle signal data and the jacket platform limit inclination angle angle value that sets in advance carry out, when the inclination angle angle value of surveying surpasses the jacket platform limit inclination angle angle value set in advance, monitoring host computer starts warning device, and the safety case of jacket platform is reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101896337A CN103245326A (en) | 2013-05-21 | 2013-05-21 | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101896337A CN103245326A (en) | 2013-05-21 | 2013-05-21 | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103245326A true CN103245326A (en) | 2013-08-14 |
Family
ID=48925007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101896337A Pending CN103245326A (en) | 2013-05-21 | 2013-05-21 | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103245326A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542835A (en) * | 2013-10-22 | 2014-01-29 | 国家电网公司 | Foundation settlement monitoring system |
| CN104142135A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Method and device for monitoring horizontal displacement of tunnel based on wireless tilt sensors |
| CN104142137A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Tunnel longitudinal settlement monitoring method and device based on wireless tilt sensor |
| CN106524936A (en) * | 2016-11-11 | 2017-03-22 | 青岛理工大学 | Tunnel pipe shed deformation monitoring method |
| CN109373971A (en) * | 2018-10-15 | 2019-02-22 | 西安合电电气有限公司 | Draw switchyard structure bracket and foundation deformation on-line monitoring system |
| CN109631845A (en) * | 2018-11-16 | 2019-04-16 | 浙江海洋大学 | Ocean platform oblique view equipment |
| CN110426014A (en) * | 2019-09-04 | 2019-11-08 | 国网黑龙江省电力有限公司哈尔滨供电公司 | The on-line monitoring method of substation secondary cable sedimentation |
| CN113494903A (en) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | Method for monitoring relative settlement of ocean platform by using inclinometer and monitoring system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021919A (en) * | 2010-12-09 | 2011-04-20 | 东南大学 | Foundation pit wireless monitoring and alarming device and monitoring method |
| CN102607644A (en) * | 2012-02-23 | 2012-07-25 | 中建钢构有限公司 | Building construction monitoring system and monitoring method thereof |
| CN202661227U (en) * | 2012-05-10 | 2013-01-09 | 东营市胜软石油技术开发有限公司 | Apparatus for real-time detection of balance of self-elevating platform and driving depth of pile leg |
| CN102901560A (en) * | 2012-10-24 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Safe comprehensive monitoring system for structure of offshore jacket platform |
-
2013
- 2013-05-21 CN CN2013101896337A patent/CN103245326A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021919A (en) * | 2010-12-09 | 2011-04-20 | 东南大学 | Foundation pit wireless monitoring and alarming device and monitoring method |
| CN102607644A (en) * | 2012-02-23 | 2012-07-25 | 中建钢构有限公司 | Building construction monitoring system and monitoring method thereof |
| CN202661227U (en) * | 2012-05-10 | 2013-01-09 | 东营市胜软石油技术开发有限公司 | Apparatus for real-time detection of balance of self-elevating platform and driving depth of pile leg |
| CN102901560A (en) * | 2012-10-24 | 2013-01-30 | 天津亿利科能源科技发展股份有限公司 | Safe comprehensive monitoring system for structure of offshore jacket platform |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142135A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Method and device for monitoring horizontal displacement of tunnel based on wireless tilt sensors |
| CN104142137A (en) * | 2013-09-13 | 2014-11-12 | 同济大学 | Tunnel longitudinal settlement monitoring method and device based on wireless tilt sensor |
| CN104142137B (en) * | 2013-09-13 | 2016-04-20 | 同济大学 | A kind of tunnel Longitudinal Settlement monitoring method based on wireless tilt angle sensor and device |
| CN103542835A (en) * | 2013-10-22 | 2014-01-29 | 国家电网公司 | Foundation settlement monitoring system |
| CN103542835B (en) * | 2013-10-22 | 2016-08-24 | 国家电网公司 | A kind of subsidence monitoring of foundation system |
| CN106524936A (en) * | 2016-11-11 | 2017-03-22 | 青岛理工大学 | Tunnel pipe shed deformation monitoring method |
| CN106524936B (en) * | 2016-11-11 | 2018-12-11 | 青岛理工大学 | Tunnel pipe shed deformation monitoring method |
| CN109373971A (en) * | 2018-10-15 | 2019-02-22 | 西安合电电气有限公司 | Draw switchyard structure bracket and foundation deformation on-line monitoring system |
| CN109631845A (en) * | 2018-11-16 | 2019-04-16 | 浙江海洋大学 | Ocean platform oblique view equipment |
| CN109631845B (en) * | 2018-11-16 | 2023-12-19 | 浙江海洋大学 | Ocean platform inclination observation equipment |
| CN110426014A (en) * | 2019-09-04 | 2019-11-08 | 国网黑龙江省电力有限公司哈尔滨供电公司 | The on-line monitoring method of substation secondary cable sedimentation |
| CN113494903A (en) * | 2020-04-08 | 2021-10-12 | 中国石油化工股份有限公司 | Method for monitoring relative settlement of ocean platform by using inclinometer and monitoring system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103245326A (en) | Device and method for monitoring subsidence of jacket platform based on inclination angle monitoring | |
| CN102901560A (en) | Safe comprehensive monitoring system for structure of offshore jacket platform | |
| CN103398860B (en) | A kind of ocean platform safety monitoring method of deformation based sensor | |
| CN205177152U (en) | Pylon foundation structure monitoring system | |
| CN106767378A (en) | Building safety monitoring equipment and monitoring method based on big-dipper satellite and sensor | |
| CN101377412B (en) | Cage conductor shape laser detector based on double-steel wire rope orientation and detecting method thereof | |
| CN106679625A (en) | High-precision deformation monitoring method of wide-area electric iron tower based on Beidou system | |
| CN205879247U (en) | Long piled wharf health monitoring system based on optical fiber sensing technique and BIM technique | |
| CN106595537A (en) | Building safety state monitoring device based on BeiDou satellite and monitoring method thereof | |
| CN109405880A (en) | A kind of superficial part goaf earth's surface combines monitoring and pre-warning system and method with underground | |
| CN111398997A (en) | Dam safety monitoring device and method based on Beidou and inertial navigation | |
| TWI657404B (en) | Offshore wind farm management system and method thereof | |
| CN110309525A (en) | A kind of side slope geometric distortion and destroy trend calculation method | |
| CN104330836A (en) | Stress cutting pick coal and rock boundary detection device for coal mining machine | |
| CN103285549B (en) | Method, equipment and system for monitoring load of fire fighting truck and fire fighting truck | |
| CN107905204B (en) | Foundation structure monitoring system | |
| CN202661227U (en) | Apparatus for real-time detection of balance of self-elevating platform and driving depth of pile leg | |
| CN113591347A (en) | Dynamic monitoring method and early warning system in high slope construction process | |
| CN113763674A (en) | Remote absolute stress real-time monitoring and early warning system and method | |
| CN209264025U (en) | A kind of electric power line pole tower monitoring device and system | |
| CN211230714U (en) | Engine room displacement monitoring device of wind generating set | |
| CN111896048A (en) | Building structure health real-time monitoring system | |
| CN208567888U (en) | A kind of ocean platform sea ice monitoring device | |
| CN203143861U (en) | Dynamic tester of resetting performance of elevator hydraulic buffer | |
| CN207598434U (en) | A kind of offshore wind farm set tower drum and the safe on-Line Monitor Device of pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130814 |