CN113008156A - Novel civil engineering structure deformation monitoring device based on film interference principle - Google Patents
Novel civil engineering structure deformation monitoring device based on film interference principle Download PDFInfo
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- CN113008156A CN113008156A CN202110353131.8A CN202110353131A CN113008156A CN 113008156 A CN113008156 A CN 113008156A CN 202110353131 A CN202110353131 A CN 202110353131A CN 113008156 A CN113008156 A CN 113008156A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 35
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 239000010409 thin film Substances 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000010408 film Substances 0.000 claims abstract description 4
- 238000010030 laminating Methods 0.000 claims description 23
- 230000007306 turnover Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
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- B08B1/143—
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a novel civil engineering structure deformation monitoring device based on a thin film interference principle, which comprises a monitor body and a protective shell with an outer side cuboid structure, wherein a monitoring lens and a CCD imager are respectively arranged in the front and the rear of the protective shell, a shielding flip cover is arranged at an opening at the front end of the protective shell, a control circuit of the CCD imager is connected with a photosensitive switch to be matched with a movable shielding structure of the shielding flip cover to synchronously perform circuit control, a reciprocating driving movable lever is attached to the side edge of the shielding flip cover, and a movable cleaning mechanism is attached to the surface of the monitoring lens. This novel civil engineering structure deformation monitoring devices based on principle is interfered to film, the accessible shields flip's intermittent type active structure cooperation and reaches intermittent type work and promotes radiating purpose, reduces self high temperature variable and brings the error for photoelectric monitoring, is provided with simultaneously along with shielding flip activity and clears up the activity of monitoring camera lens and clean the mechanism in step, makes things convenient for the device adaptation outdoor environment.
Description
Technical Field
The invention relates to the technical field related to deformation monitoring of civil engineering structures, in particular to a novel deformation monitoring device of a civil engineering structure based on a thin film interference principle.
Background
In civil engineering construction, a large-scale building structure is influenced by stress and engineering quality, certain deformation can occur, the visual performance is that a building sinks and a bridge road surface is not flat, and further larger deformation damage can occur, so that the normal use of the engineering construction is directly influenced, and therefore certain monitoring needs to be carried out on the civil engineering construction.
Generally, photoelectric monitoring modes such as fiber grating sensor monitoring and the like can be used for monitoring the deformation of a civil engineering structure, or a CCD imager and a distance-adjusting telescope cone can be matched through a thin film interference principle, the thickness of interference fringes is observed after incident light is converted when the engineering structure is deformed, and the photoelectric conversion of the CCD imager is matched for monitoring, for example, a thin film interference measuring device with the Chinese patent publication No. CN204791727U provides a structural application mode corresponding to a lens of the CCD imager through an eyepiece of the telescope cone, but the device is only used in a laboratory, is not only easily influenced by external factors when long-time monitoring is carried out outdoors, for example, dust and the like are not easy to clean, if the device keeps working for a long time, not only the energy consumption problem needs to be considered, but also the photoelectric monitoring mode with higher long-time working temperature is easily influenced by temperature to cause errors, the normal monitoring of the device is influenced, and the outdoor monitoring for a long time is not facilitated.
Aiming at the problems, the device is innovatively designed on the basis of the original photoelectric monitoring device for the deformation of the civil engineering structure.
Disclosure of Invention
The invention aims to provide a novel civil engineering structure deformation monitoring device based on a thin film interference principle, and aims to solve the problems that photoelectric monitoring of civil engineering structure deformation is inconvenient for outdoor monitoring and use for a long time, lens pollution is easy to clean, and errors are easy to cause due to high long-time use temperature.
In order to achieve the purpose, the invention provides the following technical scheme: a novel civil engineering structure deformation monitoring device based on a thin film interference principle comprises a monitor body and a protective shell with an outer side cuboid structure, wherein a monitoring lens and a CCD imager are respectively arranged in front of and behind the protective shell;
a shielding turnover cover is arranged at an opening at the front end of the protective shell, and the upper end of the shielding turnover cover is rotatably connected with the protective shell through a movable shaft;
meanwhile, a control circuit of the CCD imager is connected with a photosensitive switch to be matched with a movable shielding structure of the shielding turnover cover to synchronously carry out circuit control, and a long-time energy supply photoelectric cell plate is also arranged above the protective shell;
and a movable lever driven in a reciprocating manner is attached to the side edge of the shielding turnover cover, a movable cleaning mechanism is attached to the surface of the monitoring lens, and the movable lever and the movable cleaning mechanism are driven synchronously.
Preferably, the left side and the right side of the protective shell are symmetrically provided with side vents, the inner sides of the side vents are attached with dustproof filter screens, and the side vents and the shielding flip cover are opened and closed synchronously to fan and ventilate air flow through the rotation of the shielding flip cover.
Through above-mentioned technical scheme effectively promote the heat dissipation of air current circulation, need not extra fan structure.
Preferably, the top of the protective shell is also provided with a driving motor and a driving worm driven by a shaft end, the side surfaces of the driving worms are provided with a slow-speed movable disc in parallel, and a speed reduction transmission structure is formed between the slow-speed movable disc and the driving worm through a worm gear tooth groove on the outer surface of the slow-speed movable disc.
Preferably, the lower surface of the outer ring of the slow moving disc is integrally provided with a fitting boss, the left side and the right side of the fitting boss are symmetrically provided with fitting inclined planes, and the slow moving disc is fitted with the side end of the moving lever through the fitting inclined planes at the fitting boss.
The slow rotation of the slow-speed movable disc drives the fitting boss to intermittently push the movable lever, so that the aim of facilitating the intermittent work of the device is fulfilled.
Preferably, the movable lever comprises a movable rod body, a movable rotating shaft, a supporting end, a fitting lug, a movable end and a fitting cam, the supporting end and the movable end are respectively positioned on the left side and the right side of the movable rod body, a lever rotating structure is formed between the movable rod body and the inner wall of the protective shell through the movable rotating shaft, and the lever fulcrum of the movable rotating shaft is lower than the lower surface of the inner wall of the protective shell.
Preferably, the fitting convex block is a cylindrical convex block structure at the front end of the supporting end, the supporting end and the shielding flip cover are fitted with each other through the fitting convex block, a fitting sliding groove is formed in the inner side surface of the shielding flip cover, and the fitting convex block forms a sliding structure at the fitting sliding groove.
The movable lever is kept to drive the covering cover to be attached in a mode that the attaching convex block slides in the attaching sliding groove in a limiting mode, and the movable lever is conveniently jacked and turned.
Preferably, the laminating cam is arranged at the tail end of the movable end, the rotating shaft of the laminating cam and the central axis of the movable end are overlapped, and the movable end and the slow-speed movable disc are in rolling lamination through the laminating cam.
The laminating cam rolls flexibly at the position of the slow-speed movable disc, and meanwhile, the laminating cam is convenient to adapt to flexibly pushing the laminating boss, so that friction is reduced, and driving flexibility is improved.
Preferably, the movable cleaning mechanism comprises a movable sliding chute, a wiping strip, side sliding blocks, a fitting spring, an elastic inhaul cable and a positioning pulley, wherein the left end and the right end of the wiping strip are symmetrically provided with the side sliding blocks, and the lower ends of the side sliding blocks are connected with the elastic inhaul cable.
The wiping strip of the movable cleaning mechanism is pulled by the elastic inhaul cable to wipe the surface of the monitoring lens to wipe the attached dust in time.
Preferably, the movable sliding grooves are symmetrically arranged on the left side and the right side of the inner wall of the protective shell, the side sliding blocks form a sliding lifting structure on the inner side of the movable sliding grooves, and the side sliding blocks and the lower ends of the movable sliding grooves are attached to form attachment springs.
The elastic support of the fitting spring is convenient for the reset reciprocating cleaning of the wiping strip and the side sliding block.
Preferably, the positioning pulley is installed at the lower end of the movable sliding chute and the opening of the protective shell, and the elastic inhaul cable bypasses the positioning pulley to connect the side sliding block and shield the side edge of the flip cover.
Through the technical scheme, the shielding flip cover can synchronously pull the elastic cable when being turned and opened, and the normal use is prevented from being influenced by the displacement of the elastic cable under the guide of the positioning pulley.
Compared with the prior art, the invention has the beneficial effects that: the novel civil engineering structure deformation monitoring device based on the thin film interference principle,
1. the purpose of intermittent operation and heat dissipation promotion can be achieved through the cooperation of the intermittent movable structure of the shielding flip, the error brought to photoelectric monitoring by self high-temperature variable is reduced, in the using process of the device, the laminating boss is slowly driven to intermittently push the movable lever through the speed reduction driving structure of the driving worm and the slow-speed movable disk, so that the shielding flip is intermittently supported and turned on through the lever structure of the movable lever, the photosensitive control device of the photosensitive switch is used for recording the work when the shielding flip is turned on, the monitoring is carried out in a mode of multi-time recording comparison, the long-time work is not needed, the self-heating influence of a CCD imager semiconductor chip in the photoelectric device is reduced, meanwhile, the internal airflow can be directly driven when the shielding flip is fanned, the heat dissipation is effectively promoted through the ventilation opening at the matching;
2. be provided with along with shielding flip activity in step clearance monitoring camera's activity cleans mechanism, in the use of device, the side slider of the synchronous pulling wiping strip side of flip accessible elastic cable that shields that the upset was opened, make side slider and wiping strip overall activity clean monitoring camera surface, compress the laminating spring simultaneously, when conveniently shielding flip closure, wiping strip part resets by oneself under the elastic action, thereby shield flip at every turn and open, when the device monitored the record, the activity cleans the mechanism and all can clean monitoring camera in step, need not extra drive arrangement that cleans simultaneously, make things convenient for the device better to adapt to outdoor monitoring environment.
Drawings
FIG. 1 is a side cross-sectional structural schematic view of the present invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1 according to the present invention;
FIG. 3 is a schematic side sectional view of the present invention with the shadow flip closed;
FIG. 4 is a schematic view of the bottom cross-section of the protective housing of the present invention;
FIG. 5 is a schematic view of a bonding boss and bonding cam bonding structure of the present invention;
FIG. 6 is a schematic side view of the attachment chute of the present invention;
FIG. 7 is a front cross-sectional structural view of the attachment chute of the present invention;
FIG. 8 is a block diagram of a photosensitive switch control system according to the present invention.
In the figure: 1. a monitor body; 2. a protective housing; 3. monitoring a lens; 4. a CCD imager; 5. the turning cover is shielded; 6. a movable shaft; 7. a light sensing switch; 8. a photovoltaic panel; 9. a movable lever; 91. a movable rod body; 92. a movable rotating shaft; 93. a support end; 94. fitting the bumps; 95. a movable end; 96. fitting the cam; 10. a movable cleaning mechanism; 101. a movable chute; 102. rubbing the strips; 103. a side slider; 104. fitting a spring; 105. an elastic stay cable; 106. positioning the pulley; 11. a side vent; 12. a dustproof filter screen; 13. a drive motor; 14. a drive worm; 15. a slow-speed movable disk; 16. a worm gear tooth groove; 17. fitting the boss; 18. attaching an inclined plane; 19. and (6) fitting the sliding groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a novel civil engineering structure deformation monitoring device based on the thin film interference principle comprises a monitor body 1 and a protective shell 2 with an outer side cuboid structure, a monitoring lens 3 and a CCD imager 4 are respectively arranged in the front and the back of the protective shell 2, a shielding flip-open cover 5 is arranged at the opening at the front end of the protective shell 2, the upper end of the shielding flip-open cover 5 is rotatably connected with the protective shell 2 through a movable shaft 6, meanwhile, a control circuit of the CCD imager 4 is connected with a photosensitive switch 7 to synchronously control the circuit by matching with a movable shielding structure of the shielding flip 5, a long-time energy supply photocell plate 8 is also arranged above the protective shell 2, and secondly, a movable lever 9 driven in a reciprocating manner is attached to the side edge of the shielding turnover cover 5, a movable cleaning mechanism 10 is attached to the surface of the monitoring lens 3, and the movable lever 9 and the movable cleaning mechanism 10 are driven synchronously.
When using this novel civil engineering structure deformation monitoring devices based on film interference principle, combine shown in fig. 4, driving motor 13 and axle head driven drive worm 14 are installed to the top of protective housing 2, and the side of drive worm 14 is provided with slow activity dish 15 side by side, and between slow activity dish 15 and the drive worm 14 through the worm wheel tooth's socket 16 of slow activity dish 15 surface constitution speed reduction transmission structure, thereby can directly drive worm 14 through driving motor 13 and rotate, drive worm 14 carries out speed reduction transmission to slow activity dish 15 through worm wheel tooth's socket 16.
Meanwhile, the lower surface of the outer ring of the slow moving disc 15 is integrally provided with the attaching boss 17, the left side and the right side of the attaching boss 17 are symmetrically provided with the attaching inclined planes 18, the slow moving disc 15 is attached to the side end of the moving lever 9 through the attaching inclined plane 18 at the attaching boss 17, the attaching boss 17 is driven to move to the moving lever 9 through the slow circulating rotation of the slow moving disc 15, the attaching cam 96 at the moving end 95 of the moving lever 9 is arranged at the tail end of the moving end 95, the rotating shaft of the attaching cam 96 is overlapped with the central axis of the moving end 95, the moving end 95 is attached to the slow moving disc 15 in a rolling mode through the attaching cam 96, and therefore the attaching cam 96 and the attaching inclined plane 18 at the attaching boss 17 can be movably pushed as shown in fig. 5, and the moving lever 9 is driven to deflect.
And a lever rotating structure is formed between the movable rod 91 and the inner wall of the protective shell 2 through a movable rotating shaft 92, so that with the movable rotating shaft 92 as a fulcrum, the lever prizes a supporting end 93 at the other end, as shown in fig. 6-7, the supporting end 93 and the shielding flip 5 are mutually attached through an attaching projection 94, an attaching chute 19 is formed on the inner side surface of the shielding flip 5, and the attaching projection 94 forms a sliding structure at the attaching chute 19, so that the movable lever 9 can keep the movable connection with the shielding flip 5 when deflecting, as shown in fig. 1 and 3, the transverse extending distance of the deflected movable lever 9 is increased, and the shielding flip 5 can be integrally rotated and supported around the movable shaft 6 as shown in fig. 1.
When the shielding flip 5 is rotated and unfolded as shown in fig. 1, the elastic cable 105 bypasses the positioning pulley 106 to connect the side slider 103 and the side edge of the shielding flip 5, so that the elastic cable 105 can be pulled to synchronously drive the side slider 103 and the wiping strip 102 to be integrated while the shielding flip 5 moves, the side slider 103 forms a sliding lifting structure at the inner side of the movable sliding chute 101, and the attaching spring 104 is attached between the lower ends of the side slider 103 and the movable sliding chute 101, so that the wiping strip 102 can be driven to integrally move down to extrude the attaching spring 104 and wipe the monitoring lens 3.
The cleaned monitoring lens 3 can avoid the influence of dust, and simultaneously the light sensitive switch 7 detects that the shielding flip cover 5 is opened to emit light, the monitor body 1 can be normally matched with the CCD imager 4 to carry out photoelectric signal conversion detection processing, and is compared with multiple monitoring data to detect the occurrence of deformation, then the slow-speed movable disc 15 continues to rotate, the joint boss 17 is moved away from the movable lever 9, the shielding flip cover 5 can reset under the action of gravity, the light sensitive switch 7 senses a temporary closing control circuit, so that the device can work intermittently, the heating condition of semiconductor elements and the like of the internal CCD imager 4 is reduced, meanwhile, the left side and the right side of the protective shell 2 are symmetrically provided with side vents 11, the inner sides of the side vents 11 are provided with dustproof filter screens 12 in a joint mode, and the air flows at the side vents 11 and the shielding flip cover 5 synchronously fan and ventilate through the rotary opening and closing of the, the ventilation and heat dissipation of the device can be promoted, a good protection effect is achieved, and the device can be conveniently used for outdoor long-time normal monitoring.
It is the principle of operation of the novel device for monitoring deformation of civil engineering structures based on the principle of thin-film interference, which is well known to persons skilled in the art and not described in detail in this specification, that although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a novel civil engineering structure deformation monitoring devices based on principle is interfered to film, includes the protective housing of monitor body and outside cuboid structure, and embeds monitoring camera lens and CCD imager around the protective housing respectively, its characterized in that:
a shielding turnover cover is arranged at an opening at the front end of the protective shell, and the upper end of the shielding turnover cover is rotatably connected with the protective shell through a movable shaft;
meanwhile, a control circuit of the CCD imager is connected with a photosensitive switch to be matched with a movable shielding structure of the shielding turnover cover to synchronously carry out circuit control, and a long-time energy supply photoelectric cell plate is also arranged above the protective shell;
and a movable lever driven in a reciprocating manner is attached to the side edge of the shielding turnover cover, a movable cleaning mechanism is attached to the surface of the monitoring lens, and the movable lever and the movable cleaning mechanism are driven synchronously.
2. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 1, characterized in that: the left side and the right side of the protective shell are symmetrically provided with side vents, the inner sides of the side vents are attached with dustproof filter screens, and the side vents and the shielding flip cover are opened and closed synchronously to fan and ventilate through the rotation of the shielding flip cover.
3. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 1, characterized in that: the top of the protective shell is also provided with a driving motor and a driving worm driven by a shaft end, the side faces of the driving worms are provided with a slow-speed movable disc in parallel, and a speed reduction transmission structure is formed between the slow-speed movable disc and the driving worm through a worm gear tooth groove on the outer surface of the slow-speed movable disc.
4. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 3, characterized in that: the integration of the outer lane lower surface of slow moving plate is provided with the laminating boss, and the left and right sides symmetry of laminating boss is provided with the laminating inclined plane to the slow moving plate is laminated each other through the side of laminating inclined plane and activity lever in laminating boss department.
5. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 1, characterized in that: the movable lever comprises a movable rod body, a movable rotating shaft, a supporting end, a fitting lug, a movable end and a fitting cam, the supporting end and the movable end are respectively positioned at the left side and the right side of the movable rod body, a lever rotating structure is formed between the movable rod body and the inner wall of the protective shell through the movable rotating shaft, and the lever fulcrum of the movable rotating shaft is lower than the lower surface of the inner wall of the protective shell.
6. A novel civil engineering structure deformation monitoring device based on thin film interference principle according to claim 5, characterized in that: the laminating lug is the cylindrical lug structure of support end front end, and support the end and shield and laminate each other through the laminating lug between the flip to shield the inboard surface of flip and seted up the laminating spout, the laminating lug constitutes sliding construction in laminating spout department.
7. A novel civil engineering structure deformation monitoring device based on thin film interference principle according to claim 5, characterized in that: the laminating cam sets up at the end of expansion end, and the pivot of laminating cam and the axis of expansion end coincide each other to through laminating cam roll laminating between expansion end and the slow-speed movable plate.
8. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 1, characterized in that: the movable cleaning mechanism comprises a movable sliding groove, a wiping strip, side sliding blocks, a fitting spring, an elastic inhaul cable and a positioning pulley, wherein the left end and the right end of the wiping strip are symmetrically provided with the side sliding blocks, and the lower ends of the side sliding blocks are connected with the elastic inhaul cable.
9. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 8, characterized in that: the movable sliding grooves are symmetrically arranged on the left side and the right side of the inner wall of the protective shell, the side sliding blocks form a sliding lifting structure on the inner side of the movable sliding grooves, and the side sliding blocks and the lower ends of the movable sliding grooves are laminated and provided with laminating springs.
10. A novel civil engineering structure deformation monitoring device based on thin film interference principle as claimed in claim 8, characterized in that: the positioning pulley is arranged at the lower end of the movable sliding chute and the opening of the protective shell, and the elastic inhaul cable bypasses the positioning pulley to connect the side sliding block and shield the side edge of the flip cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353131.8A CN113008156A (en) | 2021-04-01 | 2021-04-01 | Novel civil engineering structure deformation monitoring device based on film interference principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353131.8A CN113008156A (en) | 2021-04-01 | 2021-04-01 | Novel civil engineering structure deformation monitoring device based on film interference principle |
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| Publication Number | Publication Date |
|---|---|
| CN113008156A true CN113008156A (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110353131.8A Withdrawn CN113008156A (en) | 2021-04-01 | 2021-04-01 | Novel civil engineering structure deformation monitoring device based on film interference principle |
Country Status (1)
| Country | Link |
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| CN (1) | CN113008156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493052A (en) * | 2022-11-16 | 2022-12-20 | 山东省物化探勘查院 | Portable level |
| CN117729403A (en) * | 2024-02-07 | 2024-03-19 | 广东新成科技实业有限公司 | Laser camera monitor for ship |
-
2021
- 2021-04-01 CN CN202110353131.8A patent/CN113008156A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115493052A (en) * | 2022-11-16 | 2022-12-20 | 山东省物化探勘查院 | Portable level |
| CN115493052B (en) * | 2022-11-16 | 2023-02-03 | 山东省物化探勘查院 | Portable level |
| CN117729403A (en) * | 2024-02-07 | 2024-03-19 | 广东新成科技实业有限公司 | Laser camera monitor for ship |
| CN117729403B (en) * | 2024-02-07 | 2024-04-19 | 广东新成科技实业有限公司 | Laser camera monitor for ship |
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Application publication date: 20210622 |