CN202452953U - System for detecting profile dimension of underwater part of ship - Google Patents
System for detecting profile dimension of underwater part of ship Download PDFInfo
- Publication number
- CN202452953U CN202452953U CN2011205389323U CN201120538932U CN202452953U CN 202452953 U CN202452953 U CN 202452953U CN 2011205389323 U CN2011205389323 U CN 2011205389323U CN 201120538932 U CN201120538932 U CN 201120538932U CN 202452953 U CN202452953 U CN 202452953U
- Authority
- CN
- China
- Prior art keywords
- underwater
- laser
- ship
- boats
- scanister
- 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.)
- Expired - Fee Related
Links
- 238000012545 processing Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 10
- 238000003384 imaging method Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to an underwater object appearance imaging technology, in particular to a system for detecting the profile dimension of an underwater part of a ship. The structural key points are that the system comprises an underwater laser scanning device, an underwater image pick-up device, an image processing subsystem, a lifting device and a transmission cable; and by an image processing method based on the combination of a laser technology and a photography technology, a laser illumination line is formed by scanning the underwater part of a ship body through a laser beam, scanning image information is acquired by the underwater image pick-up device, image data is processed by a mathematic algorithm, and the three-dimensional profile information of the ship body is calculated. The system is low in construction difficulty, the detection process is full-automatically controlled, the subjective influence of measuring personnel is eliminated, equipment is not required to be loaded on the ship or enter a water bottom in the detection process, a measuring system has a simple structure and is conveniently and quickly operated, a measuring result is accurate and stable, and important reference is provided for the smooth sailing of the ship and the safety of the personnel, the equipment, the ship and a channel.
Description
Technical field
The utility model relates to a kind of immersed body profile imaging technique, particularly a kind of boats and ships underwater portion overall size detection system, and it adopts the image processing method that combines with camera technique based on laser technology.
Background technology
The boats and ships underwater portion is meant that hull is immersed in the part in the water.For shipping management department; If can accurately grasp the overall size of boats and ships underwater portion, just can combine the delta data of fairway depth and current, be equipped with the cargo loading situation; Calculate the Metacentre Height of boats and ships; Important steadiness parameters such as rolling period, left and right sides trim, heeling angle, trim angle again according to the topographic(al) data of lock chamber or ship lift ship case, are rationally arranged the inferior and berth in ship lock (or ship case) of ship navigation lock; Thereby guarantee that navigation is smooth, guarantee the safety in personnel, equipment, ship and navigation channel.Therefore grasp the accurate overall size of boats and ships underwater portion, all significant for the safety of assurance personnel, equipment, navigation channel and boats and ships.
At present; The detection of boats and ships underwater portion is only limited to the draft detection of boats and ships; As adopt artificial observation method, ultrasound wave water gauge method, pressure sensing method or the like, yet draft is meant the distance of boats and ships underwater portion minimum point to the water surface, can only simply grasp the drinking water data (i.e. six water gauge data) at six positions of tail among the port and starboard head at most; Do not relate to the boats and ships detection of overall size under water, do not embody the technical information of this overall size yet.Because data are imperfect, those skilled in the art can not grasp whole underwater portion profile, need to rely on dispatcher's working experience to arrange the inferior and berth of lock.Yet it is bigger that present metering system is influenced by the survey crew subjectivity, and water-bed the detection must gone on board or get into to checkout equipment during inspection, and detection system is complicated, and difficulty of construction is high, and inconvenient operation can't realize disembark, inspection requirements accurately and rapidly.
The utility model content
The purpose of the utility model be the weak point according to prior art provide a kind of can detect boats and ships under water overall size, guarantee the boats and ships underwater portion overall size detection system of navigation safety.
The said purpose of the utility model realizes through following approach:
Boats and ships underwater portion overall size detection system, its structural feature are, include underwater laser scanister, underwater photograph technical device, image processing subsystem, jacking gear and transmission cable, wherein:
The underwater laser scanister comprises opticator and rotating part, and opticator includes laser generator, laser beam expanding lens and the optics plano-concave cylindrical mirror of installing in regular turn along same optical axis; Rotating part includes completely reflecting mirror and stepper motor, and the rotation axis of stepper motor is through the completely reflecting mirror mirror heart and parallel with minute surface; The rotation axis of rotating part is perpendicular to the optical axis of opticator;
Jacking gear comprises horizontal stand, vertical guide rail and driving motor, and vertical guide rail is installed in the water bank, and perpendicular to the water surface, horizontal stand is perpendicular to this vertical guide rail, and its strong point is installed in the track of vertical guide rail, and is electrically connected with driving motor;
Underwater laser scanister and underwater photograph technical device are all installed on the horizontal stand that is placed on jacking gear, and are connected with image processing subsystem through transmission cable.
The detection method of above-mentioned boats and ships underwater portion overall size detection system comprises the steps:
A kind of aforesaid boats and ships underwater portion overall size detection system is provided,
Start driving motor, the horizontal stand that its drive is placed with underwater laser scanister and underwater photograph technical device does not have in the entry along vertical guide rail, and drops to desired location, is generally near the regulation draft of navigation channel;
Start underwater laser scanister and underwater photograph technical device; Laser generator in the underwater laser scanister receives the triggering for generating linear laser; And transmission is to laser beam expanding lens, and laser beam expanding lens receives linear laser and also converts laser beam to, controls the angle of divergence of laser beam simultaneously;
Laser beam expanding lens with the laser beam transmission to optics plano-concave cylindrical mirror; Convert this laser beam to the sheet laser beam by optics plano-concave cylindrical mirror; And transmission is to completely reflecting mirror; A crossing plane curve, just the laser lighting line of appearing as of the reflect beams of laser light that completely reflecting mirror produces and the hull of underwater portion
The underwater photograph technical device is taken the formed image of laser lighting line that laser in the above-mentioned scanning process produces on the hull under water, and sends this image information to image processing subsystem;
Image processing subsystem receives and handles the image information that the underwater photograph technical device transmits; Utilize the subtense angle that the laser lighting line exists on the different images; Calculate the actual three-D profile information of this place's underbody, thereby obtain the overall size of this place's underbody;
Rotate completely reflecting mirror this moment under the effect of stepper motor, thereby change the incidence point of sheet laser beam on completely reflecting mirror, and the reflector laser that completely reflecting mirror is produced is followed rotation, the underwater portion of scanning hull; Angle of every rotation; The underwater photograph technical device just sends captured image information to image processing subsystem; Image processing subsystem carries out analysis-by-synthesis, calculating, processing according to a plurality of overall sizes of the scanning process of being calculated; Obtain the three-dimensional profile profile information of hull one side underwater portion, and store.
Turn fore, can the three-dimensional profile profile of the opposite side underwater portion of ship be detected.Above-mentioned laser beam expanding lens is used for the diameter of expanded beam and reduces the angle of divergence of laser beam, and completely reflecting mirror is used to change the laser beam direction.Because any measurement mechanism need not arranged at the offside or the bottom, navigation channel in navigation channel in the bank, the same side that underwater laser scanister that the utility model used and underwater photograph technical device are installed in the navigation channel, therefore reduced the system construction difficulty.The full-automatic control of testing process is not influenced by the subjectivity of survey crew, during detection; Equipment need not to go on board, and also need not to get into the bottom, simple in measurement system structure; Simple operation, fast, measurement result is accurately stable; Be the smooth navigation of boats and ships, the safety in personnel, equipment, ship and navigation channel provides important evidence.
The utility model can further be specially:
Laser generator in the underwater laser scanister is a kind of bluish-green laser device.
This be because bluish-green laser device emitted laser wavelength at blue light in green range, and that bluish-green laser is decayed in water is less, and matches with the photoelectric transformation efficiency of underwater photograph technical device.Also can be blue laser, or green (light) laser.
The underwater photograph technical device includes the high resolution CCD camera more than two or two, and this CCD camera of many is placed on the both sides of underwater laser scanister respectively.
Many CCD camera is used for taking the laser lighting line on the under-water body in different angles.Its principle is:
For any 1 P on the hull laser lighting line; Be on the optical center and the straight line O1P1 ' of its CCD by first video camera, also be in simultaneously on the optical center and the straight line O2P2 ' of its CCD of second video camera as the imaging point P2 ' decision on plane as the imaging point P1 ' decision on plane.Because O1P1 ' and two straight lines of O2P2 ' can be known at the three-dimensional equation of real space, and the intersection point of O1P1 ' and O2P2 ' is exactly the P point, so any 1 the P point on the laser lighting line can come out through algorithm computation at the three-dimensional coordinate of real space.
The utility model can also further be specially:
The control module that image processing subsystem includes the signal receiving module that is connected with driving motor, central processing module, the signal delivery module that is connected with the underwater photograph technical device, is connected with the underwater laser scanister, signal receiving module, signal delivery module and control module are connected with central processing module respectively.
When driving motor starts; It sends signal and handles via signal receiving module entering central processing module; Central processing module sends enabled instruction through control module to the underwater laser scanister according to this signal, and starts the underwater photograph technical device through the signal delivery module; When central processing module receives the image from the underwater photograph technical device through the signal delivery module; Form instruction according to the data of setting; Through control module the stepper motor of underwater laser scanister is sent action command and action parameter, realize the complete automatic control function that detects.
In sum; The utility model provides a kind of boats and ships underwater portion overall size detection system, and it is based on the detection system of Flame Image Process, according to adopting laser beam that underbody is scanned; Form the laser lighting line; Obtain scan image information through the underwater camera device, and adopt the mathematical algorithm image data processing, calculate hull three-D profile information.Because any measurement mechanism need not arranged at the offside or the bottom, navigation channel in navigation channel in the bank, the same side that underwater laser scanister that the utility model used and underwater photograph technical device are installed in the navigation channel, therefore reduced the system construction difficulty.The full-automatic control of testing process is not influenced by the subjectivity of survey crew, during detection; Equipment need not to go on board, and also need not to get into the bottom, simple in measurement system structure; Simple operation, fast, measurement result is accurately stable; Be the smooth navigation of boats and ships, the safety in personnel, equipment, ship and navigation channel provides important evidence.
Description of drawings
Shown in Figure 1 is the planar structure synoptic diagram of the described boats and ships underwater portion of the utility model overall size detection system.
Shown in Figure 2 is the facade structures synoptic diagram of the said boats and ships underwater portion of the utility model overall size detection system.
Shown in Figure 3 is the structural representation of the said underwater laser scanister of the utility model.
Shown in Figure 4 is the ultimate principle figure of the said Flame Image Process of the utility model.
Shown in Figure 5 is the said boats and ships underwater portion of the utility model overall size detection method synoptic diagram.
Below in conjunction with embodiment the utility model is done and to be further described.
Embodiment
Most preferred embodiment:
With reference to accompanying drawing 1 and accompanying drawing 2, the boats and ships underwater portion overall size detection system based on Flame Image Process includes underwater laser scanister 1, underwater photograph technical device, image processing subsystem 3, jacking gear 4 and transmission cable 5.
Wherein, the underwater photograph technical device includes two 8,000,000 pixel CCD cameras 21,22.The CCD camera is used for taking the laser lighting line on the under-water body in different angles.CCD camera and laser scanning device all are placed on the horizontal stand 41, are in the same degree of depth under water.And the CCD camera is positioned at the laser scanning device both sides, all is 1 meter with the distance of laser scanning device 1.
Referring to accompanying drawing 3, underwater laser scanister 1 includes opticator and rotating part.Opticator includes that the semiconductor pumped total solids green (light) laser of 532nm 11, multiplying power are installed in regular turn is 10 532nm green laser beam expanding lens 12 and focal length is the optics plano-concave cylindrical mirror 13 of-100mm along same optical axis.The 532nm green laser is decayed less in water, and matches with the photoelectric transformation efficiency of CCD camera.Little and the good beam quality of diode pumped solid state laser volume is suitable for laser imaging system.Rotating part includes the completely reflecting mirror 14 and stepper motor 15 that the total reflection wavelength is 532nm.Stepper motor 15 rotation axiss are through the completely reflecting mirror 14 mirror hearts and parallel with minute surface.The optical axis of the rotation axis of rotating part and opticator is orthogonal simultaneously, and completely reflecting mirror 14 rotates on surface level, according to the reflection lasering beam of different laser bundle incident angle generation different angles, realizes the scanning to underbody.
For any 1 P on the laser lighting line 16 that forms on the hull 6; Be on the optical center O1 and the straight line O1P1 ' of its CCD by video camera 1, also be in simultaneously on the optical center O2 and the straight line O2P2 ' of its CCD of video camera 2 as the imaging point P2 ' decision on plane as the imaging point P1 ' decision on plane.Because O1P1 ' and two straight lines of O2P2 ' can be known at the three-dimensional equation of real space, and the intersection point of O1P1 ' and O2P2 ' is exactly the P point, so any 1 the P point on the laser lighting line can come out through algorithm computation at the three-dimensional coordinate of real space.
The detection method of above-mentioned boats and ships underwater portion overall size detection system with reference to accompanying drawing 5, comprises the steps:
Start driving motor 43, the horizontal stand that its drive is placed with underwater laser scanister and underwater photograph technical device does not have in the entry along vertical guide rail, and 1.6 meters dark working positions under water, and promptly stipulate near the draft in the navigation channel;
Laser beam expanding lens 12 with the laser beam transmission to optics plano-concave cylindrical mirror 13; Convert this laser beam to the sheet laser beam by optics plano-concave cylindrical mirror; And transmission is to completely reflecting mirror 14; The reflect beams of laser light that completely reflecting mirror 14 produces appears as a plane curve with the hull of underwater portion is crossing, and just the laser lighting line 16
This moment, image processing subsystem 3 sent steering order; Send the stepper motor 15 in the underwater laser scanister to; Completely reflecting mirror 14 is rotated under the effect of stepper motor 15, thereby change the incidence point of sheet laser beam on completely reflecting mirror, the reflector laser that completely reflecting mirror 14 is produced is followed rotation; Through the adjustment horizontal stand Level Change laser scanning degree of depth, realize the underwater portion of scanning hull again; The angle of every rotation or the degree of depth; The underwater photograph technical device just sends captured image information to image processing subsystem; Image processing subsystem carries out analysis-by-synthesis, calculating, processing according to a plurality of overall sizes of the scanning process of being calculated; Obtain the three-dimensional profile profile information of hull one side underwater portion, and store.
Turn fore, can the three-dimensional profile profile of the opposite side underwater portion of ship be detected.
Native system and method in fact also can be used for the water surface, exterior contour land or aerial object detects.
It is identical with prior art that the utility model is not stated part.
Claims (4)
1. boats and ships underwater portion overall size detection system; It is characterized in that; Include underwater laser scanister, underwater photograph technical device, image processing subsystem, jacking gear and transmission cable; Wherein: the underwater laser scanister comprises opticator and rotating part, and opticator includes laser generator, laser beam expanding lens and the optics plano-concave cylindrical mirror of installing in regular turn along same optical axis; Rotating part includes completely reflecting mirror and stepper motor, and the rotation axis of stepper motor is through the completely reflecting mirror mirror heart and parallel with minute surface; The rotation axis of rotating part is perpendicular to the optical axis of opticator; Jacking gear comprises horizontal stand, vertical guide rail and driving motor, and vertical guide rail is installed in the water bank, and perpendicular to the water surface, horizontal stand is perpendicular to this vertical guide rail, and its strong point is installed in the track of vertical guide rail, and is electrically connected with driving motor; Underwater laser scanister and underwater photograph technical device are all installed on the horizontal stand that is placed on jacking gear, and are connected with image processing subsystem through transmission cable.
2. boats and ships underwater portion overall size detection system according to claim 1 is characterized in that, the laser generator in the underwater laser scanister is a kind of bluish-green laser device perhaps, perhaps is a kind of green (light) laser, perhaps is a kind of blue laser.
3. boats and ships underwater portion overall size detection system according to claim 1; It is characterized in that; The underwater photograph technical device includes the high resolution CCD camera more than two or two, and this CCD camera of many is placed on the both sides of underwater laser scanister respectively.
4. boats and ships underwater portion overall size detection system according to claim 1; It is characterized in that; The control module that image processing subsystem includes the signal receiving module that is connected with driving motor, central processing module, the signal delivery module that is connected with the underwater photograph technical device, is connected with the underwater laser scanister, signal receiving module, signal delivery module and control module are connected with central processing module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205389323U CN202452953U (en) | 2011-12-21 | 2011-12-21 | System for detecting profile dimension of underwater part of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205389323U CN202452953U (en) | 2011-12-21 | 2011-12-21 | System for detecting profile dimension of underwater part of ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452953U true CN202452953U (en) | 2012-09-26 |
Family
ID=46868812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205389323U Expired - Fee Related CN202452953U (en) | 2011-12-21 | 2011-12-21 | System for detecting profile dimension of underwater part of ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452953U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564339A (en) * | 2011-12-21 | 2012-07-11 | 福建水口发电集团有限公司 | Detecting system and detection method for overall dimension of underwater part of ship |
| CN106809340A (en) * | 2017-01-13 | 2017-06-09 | 集美大学 | Ship hull bottom 3D scannings under water shiprepair device and its shiprepair method |
| CN110411339A (en) * | 2019-07-30 | 2019-11-05 | 中国海洋大学 | A kind of submarine target dimension measuring apparatus and method based on collimated laser beam |
| CN115230896A (en) * | 2017-04-07 | 2022-10-25 | 技术资源有限公司 | Automatic draft survey |
-
2011
- 2011-12-21 CN CN2011205389323U patent/CN202452953U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564339A (en) * | 2011-12-21 | 2012-07-11 | 福建水口发电集团有限公司 | Detecting system and detection method for overall dimension of underwater part of ship |
| CN102564339B (en) * | 2011-12-21 | 2014-06-25 | 国家电网公司 | Detecting system and detection method for overall dimension of underwater part of ship |
| CN106809340A (en) * | 2017-01-13 | 2017-06-09 | 集美大学 | Ship hull bottom 3D scannings under water shiprepair device and its shiprepair method |
| CN115230896A (en) * | 2017-04-07 | 2022-10-25 | 技术资源有限公司 | Automatic draft survey |
| CN110411339A (en) * | 2019-07-30 | 2019-11-05 | 中国海洋大学 | A kind of submarine target dimension measuring apparatus and method based on collimated laser beam |
| CN110411339B (en) * | 2019-07-30 | 2021-07-02 | 中国海洋大学 | Underwater target size measuring equipment and method based on parallel laser beams |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102564339B (en) | Detecting system and detection method for overall dimension of underwater part of ship | |
| JP6726885B2 (en) | Inspection camera, inspection system including the same, and inspection method | |
| CN107203222B (en) | Method for realizing ship water gauge image and video shooting by unmanned aerial vehicle | |
| RU2751383C2 (en) | Automated weight determination based on the ship draft | |
| US10633066B2 (en) | Apparatus and methods for measuring positions of points on submerged surfaces | |
| JP5054718B2 (en) | Position detecting device and position detecting method for underwater moving body | |
| US8701584B2 (en) | Unmanned underwater vehicle and method for operating an unmanned underwater vehicle | |
| CN202452953U (en) | System for detecting profile dimension of underwater part of ship | |
| CN102530197B (en) | Ship draft depth measuring device based on laser and measuring method thereof | |
| KR101873743B1 (en) | Underwater image system for ship bottom inspection | |
| CN109709574B (en) | Seabed microtopography laser scanning imaging system and three-dimensional terrain reconstruction method | |
| CN110712720A (en) | System for measuring draught of ship and using method thereof | |
| US11027799B2 (en) | Systems and methods for 3-dimensional scanning for drydocking | |
| JP6655827B2 (en) | Inspection system, inspection method and inspection program | |
| KR102457406B1 (en) | Apparatus for scanning objects in water and method for scanning objects in water by using the same | |
| US20220307834A1 (en) | Surveying System | |
| CN109212535B (en) | Unmanned ship-based river channel all-terrain scanning method | |
| CN213843523U (en) | Unmanned aerial vehicle is patrolled and examined to well | |
| KR102076775B1 (en) | Unmanned Air Boat for Safety Inspection of Sub-Bottom of Landing Pier and Inside of Medium-Large Sized Culvert | |
| WO2017145204A1 (en) | Imaging device | |
| CN110091962A (en) | A kind of 30 10,000 tons mammoth tanker berthing monitoring methods and device based on virtual wall | |
| Yu et al. | Dual-attention-based optical terminal guidance for the recovery of unmanned surface vehicles | |
| KR101956472B1 (en) | Structure inspection apparatus and system for inspecting ballast tank | |
| KR102343504B1 (en) | underwater drone operation system and operation method | |
| JP7430320B2 (en) | Underwater structure photography device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: FUJIAN SHUIKOU POWER GENERATION GROUP CO., LTD. Effective date: 20140128 Owner name: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. FUJIAN Effective date: 20140128 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350004 FUZHOU, FUJIAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140128 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Fujian Electric Power Co., Ltd. Patentee after: Fujian Shuikou Power Generation Group Co., Ltd. Address before: 350004 Shuikou building, No. 333 Baima South Road, Taijiang District, Fujian, Fuzhou Patentee before: Fujian Shuikou Power Generation Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20181221 |