CN103264605B - The overwrought restorative procedure of historical building based on 3D technology - Google Patents
The overwrought restorative procedure of historical building based on 3D technology Download PDFInfo
- Publication number
- CN103264605B CN103264605B CN201310060662.3A CN201310060662A CN103264605B CN 103264605 B CN103264605 B CN 103264605B CN 201310060662 A CN201310060662 A CN 201310060662A CN 103264605 B CN103264605 B CN 103264605B
- Authority
- CN
- China
- Prior art keywords
- model
- overwrought
- carve
- repaired
- repairing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to the restorative procedure of historical building carve.The overwrought restorative procedure of historical building based on 3D technology, step one: the three-dimensional data obtaining carve to be repaired; Step 2: according to the three-dimensional data obtained, set up the three dimensional computer modeling of carve to be repaired; Step 3: computer simulation reparation is carried out to three dimensional computer modeling; Step 4: the three dimensional computer modeling after repairing is carried out 3D printing, obtained overwrought model; Step 5: according to overwrought model, repairs carve to be repaired.The invention provides the overwrought restorative procedure of a kind of new historical building, by the utilization of 3D technology, make the reparation of historical building carve more scientific, tight and accurate.Meanwhile, by the preservation of the three-dimensional data to carve to be repaired, record overwrought preprosthetic state truly, avoid the destruction being difficult to save that repair process causes because of work mistake or misoperation.
Description
Technical field
The present invention relates to building protection recovery technique, be specifically related to the restorative procedure of historical building carve.
Background technology
Carve in historical building comprises tile carving, woodcarving, stone carving, floriation, ash are moulded, abundant in content, gimmick is various, exquisite workmanship, is that characteristic feature and the important value of Chinese history building is formed.But through long weathering and artificial destruction, carve is often incomplete.And existing recovery technique often two dimension, plane formula, renovation technique is then extensive style, final effect, entirely with the handicraft of workman, can not ensure that all reparations are all science, tightly and accurately, the repair process of many sculptures is a kind of artificial destruction process in fact.
Summary of the invention
The object of the invention is to, provide a kind of historical building based on 3D technology overwrought restorative procedure, to solve the problem.
Technical matters solved by the invention can realize by the following technical solutions:
The overwrought restorative procedure of historical building based on 3D technology, is characterized in that,
Step one: the three-dimensional data obtaining carve to be repaired;
Step 2: according to the three-dimensional data obtained, set up the three dimensional computer modeling of carve to be repaired;
Step 3: computer simulation reparation is carried out to three dimensional computer modeling;
Step 4: the three dimensional computer modeling after repairing is carried out 3D printing, obtained overwrought model;
Step 5: according to overwrought model, repairs carve to be repaired.
The invention provides the overwrought restorative procedure of a kind of new historical building, by the utilization of 3D technology, make the reparation of historical building carve more scientific, tight and accurate.Meanwhile, by the preservation of the three-dimensional data to carve to be repaired, record overwrought preprosthetic state truly, avoid the destruction being difficult to save that repair process causes because of work mistake or misoperation.
In order to protect historical building carve further, after step 5, can increase by a step, i.e. step 6: carry out protective treatment at the embossed surface repaired.Mould if described carve is tile carving, stone carving, floriation or ash, the embossed surface spraying organosilicon of reparation.If described carve is woodcarving, the embossed surface paint of reparation is coated with the clear or tung oil of water white dumb light.
In step one, the three-dimensional data of carve to be repaired can be obtained by the mode of 3 D laser scanning.Three-dimensional data can comprise overwrought spatial shape and detail data.Three-dimensional laser scanner can be adopted to carry out 3 D laser scanning.Three-dimensional laser scanner can be the pulsed three-dimensional laser scanner based on pulse, also can be the three-dimensional laser scanner based on phase differential, can also be the three-dimensional laser scanner based on range of triangle principle.Three-dimensional laser scanner mainly comprises 3D scanning system and dual camera sensor.
In step 2, the three dimensional computer modeling of carve to be repaired can be preserved in a computer, in this, as the foundation of follow-up reparation, and preserve as present situation data accurately.
In step 4, preferably according to moulded dimension: the ratio of full size=1:1 carries out 3D printing.Overwrought for large part, the mode that scale down prints can be adopted.Using the foundation of printer model as craftsman's site operation.In step 5, repair materials adopts the material identical with the material of former carve.Color allows close to and slightly difference, the requirement of " far away see consistent, closely see coordination " reaching.The process of field repair, can using the three dimensional computer modeling of carve to be repaired or overwrought model as the accurate foundation of again repairing as damaged original carve, for remedying because the carve that work mistake or misoperation cause is destroyed.
Also passable, in step 4, according to moulded dimension: the ratio of full size=1:1 carries out 3D printing, obtained overwrought model, can will repair part according to moulded dimension: the ratio that full size is less than or equal to 98:100 carries out 3D printing, the obtained repairing model repairing part; In step 5, repairing model is pasted onto in carve to be repaired, according to overwrought model, surface treatment is carried out to repairing model, complete the reparation to carve to be repaired.
In order to make reparation more accurate, the mode of successively repairing can being adopted, by repeating step one to step 5, successively repairing.After adopting this kind of method, the three dimensional computer modeling after being repaired by adjacent twice simulation of comparison, can obtain the accuracy that this layer is repaired.
The material object of reparation part is less than fact damaged part, can there is space therebetween, and space is filled by bonding agent, decorative material or other auxiliary material.
The repairing model of overwrought model, reparation part, all can adopt lamination layer structure, and described lamination layer structure comprises model internal layer, model is outer.Like this, described ectonexine separately, just can reduce the requirement to internal layer material, and model internal layer just can the lower cheap material of use cost.Thus can maintenance cost be reduced.
3D print system printer model internal layer can be used.3D print system is provided with at least two containers and two corresponding spray equipments, accommodates magnesium phosphate cement as material container in containers described at least one, containing potassium dihydrogen phosphate and magnesium oxide borax in described magnesium phosphate cement;
The spray equipment connected is as material spray equipment; Accommodate water in containers described at least one, as water receptacle, the spray equipment connected is as water spray equipment;
First spray in one deck material container on print platform
magnesium phosphate cement, formation one is material bed, and then the cross section structure of printing objects sprays water as required,
magnesium phosphate cementmeet water after-hardening, after waiting sclerosis, by what do not react with water
magnesium phosphate cementpowder removes, and can obtain required model.
The water-soluble aobvious acidity of potassium dihydrogen phosphate, the water-soluble aobvious alkalescence of magnesium oxide, the hydration reaction of magnesium phosphate cement is the acid-base neutralization reaction based on potassium dihydrogen phosphate and magnesium oxide.When after magnesium phosphate cement and water mix, the potassium dihydrogen phosphate in magnesium phosphate cement is first soluble in water, and will ionize rapidly generation H+ and PO43-, makes solution be faintly acid; Under mildly acidic conditions, MgO dissolving generation Mg2+, dissolves and Mg2+ and K+, the PO43-be diffused in liquid phase reacts rapidly generation unbodied magnesium-potassium phosphate complex compound hydrated gel, i.e. phosphate hydrated product MgKPO4.6H2O.Along with the carrying out of reaction, product is crystallization gradually.
Because magnesium oxide in system is superfluous, the product of precipitation just covers mgo surface, forms one deck hydrated product film and magnesia particle is closely connected to one.Along with the continuation of reaction, K+ and PO43-in solution progressively penetrates into MgO particle surface through hydrated product film, forms more hydrated product, and crystallization produces volumetric expansion and causes hydrated product film rupture.MgO is exposed to again in acid solution, and hydration reaction speed is accelerated again, generates a large amount of hydrated products.Along with being on the increase of hyrate, each other contact and adhesion make magnesium phosphate cement slurry become one with MgO particle be framework, the crystalline texture net that is main binding material with phosphate hyrate, thus make magnesium phosphate cement be hardened to the hardenite of very strong mechanical performance.
In described magnesium phosphate cement, potassium dihydrogen phosphate is preferably technical grade, and purity is 99.8%; Magnesium oxide purity is preferably 85%.First, potassium dihydrogen phosphate and borax are processed 12h with drying facility drying respectively, and temperature is 50 DEG C; Dried potassium dihydrogen phosphate and borax are crossed 150 μm of square hole screens respectively, ensures that screen over-size is no more than 10%; The potassium dihydrogen phosphate processed and borax are deposited separately under sealing, dry condition, and each component coordinates can be prepared into magnesium phosphate cement by proper proportion.
Also containing borax in described magnesium phosphate cement, borax is preferably as technical grade, and purity is 95%.Borax is the conventional retardant of magnesium phosphate cement, borax dissolves the B4O72-rapid adsorption of generation to MgO particle surface, form one deck based on the hydrated product layer of B4O72-and Mg2+, hinder the dissolving of MgO and the contact of K+, PO43-and MgO particle, reach the object to magnesium phosphate cement slow setting.
Can by the outer field mode of model internal layer sticker model printed, the repairing model of obtained overwrought model, reparation part.The outer field material of model is preferably identical with the outer field material of carve.
The slurry formed to prevent magnesium phosphate cement and water uncured completely before be out of shape, print platform is a box-like print platform, and the opening of described box-like print platform is towards spray equipment.
In repair, conveniently operate, three-dimensional laser scanner connects computing machine, and computing machine connects 3D print system.Such spatial digitizer, computing machine, 3D print system just can share a CPU, reduce the total cost of system.Also facilitate on-site working simultaneously.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below.
The overwrought restorative procedure of historical building based on 3D technology, step one: the three-dimensional data obtaining carve to be repaired.The three-dimensional data of carve to be repaired can be obtained by the mode of 3 D laser scanning.Three-dimensional data can comprise overwrought spatial shape and detail data.Three-dimensional laser scanner can be adopted to carry out 3 D laser scanning.Three-dimensional laser scanner can be the pulsed three-dimensional laser scanner based on pulse, also can be the three-dimensional laser scanner based on phase differential, can also be the three-dimensional laser scanner based on range of triangle principle.Three-dimensional laser scanner mainly comprises 3D scanning system and dual camera sensor.
Step 2: according to the three-dimensional data obtained, set up the three dimensional computer modeling of carve to be repaired.The three dimensional computer modeling of carve to be repaired can be preserved in a computer, in this, as the foundation of follow-up reparation, and preserve as present situation data accurately.
Step 3: computer simulation reparation is carried out to three dimensional computer modeling.Can by the research to the details of the three dimensional computer modeling of carve to be repaired, the contrast of carve of the same type, the guidance of experienced technology craftsman, simulates the state after overwrought reparation in a computer, and please historical relic's protection be expounded through peer review, determine embodiment.Can present situation be kept to recovery according to insufficient carve, will not repair.
Step 4: the three dimensional computer modeling after repairing is carried out 3D printing, obtained overwrought model.Preferably according to moulded dimension: the ratio of full size=1:1 carries out 3D printing.Overwrought for large part, the mode that scale down prints can be adopted.Using the foundation of printer model as craftsman's site operation.
Step 5: according to overwrought model, repairs carve to be repaired.The reparation of on-the-spot craftsman should be carried out in strict accordance with overwrought model, and materials and process adopts the materials and process of former carve as far as possible.Color allows close to and slightly difference, the requirement of " far away see consistent, closely see coordination " reaching.The process of field repair, can using the three dimensional computer modeling of carve to be repaired or overwrought model as the accurate foundation of again repairing as damaged original carve, for remedying because the carve that work mistake or misoperation cause is destroyed.
In order to make reparation more accurate, the mode of successively repairing can being adopted, by repeating step one to step 5, successively repairing.After adopting this kind of method, the three dimensional computer modeling after being repaired by adjacent twice simulation of comparison, can obtain the accuracy that this layer is repaired.
In order to protect historical building carve further, after step 5, can increase by a step, i.e. step 6: carry out protective treatment at the embossed surface repaired.The mode of protection has multiple: the protective material that if carve is moulded for tile carving, stone carving, floriation or ash, the embossed surface spraying colorless of reparation is transparent, hydrophobic is ventilative, as organosilicon etc.Be woodcarving if overwrought, the embossed surface of reparation can adopt water white transparency matte varnish to be coated with or twice, tung oil brush.
In step 4, the three dimensional computer modeling after reparation is carried out 3D printing, while obtained overwrought model, part can be repaired according to moulded dimension: the ratio that full size is less than or equal to 98:100 carries out 3D printing, the repairing model of obtained reparation part.In step 5, make in the ratio of 1:1 the material object repairing part according to overwrought model, the material object of reparation part is pasted onto in carve to be repaired, by overwrought model, surface treatment is carried out to reparation part, complete the reparation to carve to be repaired.The material object of reparation part is less than fact damaged part, can there is space therebetween, and space is filled by bonding agent, decorative material or other auxiliary material.
The repairing model of overwrought model, reparation part, all can adopt lamination layer structure, and lamination layer structure comprises model internal layer, model is outer.Like this, ectonexine separately, just can reduce the requirement to internal layer material, and model internal layer just can the lower cheap material of use cost.Thus can maintenance cost be reduced.
3D print system printer model internal layer can be used.3D print system is provided with at least two containers and two corresponding spray equipments, accommodates magnesium phosphate cement as material container at least one containers, containing potassium dihydrogen phosphate, magnesium oxide in magnesium phosphate cement;
The spray equipment connected is as material spray equipment; Accommodate water at least one containers, as water receptacle, the spray equipment connected is as water spray equipment;
First on print platform, spray the magnesium phosphate cement in one deck material container, formed one material bed, then the cross section structure of printing objects sprays water as required, magnesium phosphate cement meets water after-hardening, after sclerosis, the magnesium phosphate cement powder do not reacted with water is removed, required model can be obtained.
The water-soluble aobvious acidity of potassium dihydrogen phosphate, the water-soluble aobvious alkalescence of magnesium oxide, the hydration reaction of magnesium phosphate cement is the acid-base neutralization reaction based on potassium dihydrogen phosphate and magnesium oxide.When after magnesium phosphate cement and water mix, the potassium dihydrogen phosphate in magnesium phosphate cement is first soluble in water, and will ionize rapidly generation H+ and PO43-, makes solution be faintly acid; Under mildly acidic conditions, MgO dissolving generation Mg2+, dissolves and Mg2+ and K+, the PO43-be diffused in liquid phase reacts rapidly generation unbodied magnesium-potassium phosphate complex compound hydrated gel, i.e. phosphate hydrated product MgKPO4.6H2O.Along with the carrying out of reaction, product is crystallization gradually.
Because magnesium oxide in system is superfluous, the product of precipitation just covers mgo surface, forms one deck hydrated product film and magnesia particle is closely connected to one.Along with the continuation of reaction, K+ and PO43-in solution progressively penetrates into MgO particle surface through hydrated product film, forms more hydrated product, and crystallization produces volumetric expansion and causes hydrated product film rupture.MgO is exposed to again in acid solution, and hydration reaction speed is accelerated again, generates a large amount of hydrated products.Along with being on the increase of hyrate, each other contact and adhesion make magnesium phosphate cement slurry become one with MgO particle be framework, the crystalline texture net that is main binding material with phosphate hyrate, thus make magnesium phosphate cement be hardened to the hardenite of very strong mechanical performance.
In magnesium phosphate cement, potassium dihydrogen phosphate is preferably technical grade, and purity is 99.8%; Magnesium oxide purity is preferably 85%.First, potassium dihydrogen phosphate and borax are processed 12h with drying facility drying respectively, and temperature is 50 DEG C; Dried potassium dihydrogen phosphate and borax are crossed 150 μm of square hole screens respectively, ensures that screen over-size is no more than 10%; The potassium dihydrogen phosphate processed and borax are deposited separately under sealing, dry condition, and each component coordinates can be prepared into magnesium phosphate cement by proper proportion.
Also containing borax in magnesium phosphate cement, borax is preferably as technical grade, and purity is 95%.Borax is the conventional retardant of magnesium phosphate cement, borax dissolves the B4O72-rapid adsorption of generation to MgO particle surface, form one deck based on the hydrated product layer of B4O72-and Mg2+, hinder the dissolving of MgO and the contact of K+, PO43-and MgO particle, reach the object to magnesium phosphate cement slow setting.
Can by the outer field mode of model internal layer sticker model printed, the repairing model of obtained overwrought model, reparation part.The outer field material of model is preferably identical with the outer field material of carve.
The slurry formed to prevent magnesium phosphate cement and water uncured completely before be out of shape, print platform is a box-like print platform, and the opening of box-like print platform is towards spray equipment.
In repair, conveniently operate, three-dimensional laser scanner connects computing machine, and computing machine connects 3D print system.Such spatial digitizer, computing machine, 3D print system just can share a CPU, reduce the total cost of system.Also facilitate on-site working simultaneously.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1., based on the overwrought restorative procedure of historical building of 3D technology, it is characterized in that,
Step one: the three-dimensional data obtaining carve to be repaired;
Step 2: according to the three-dimensional data obtained, set up the three dimensional computer modeling of carve to be repaired;
Step 3: computer simulation reparation is carried out to three dimensional computer modeling;
Step 4: the three dimensional computer modeling after repairing is carried out 3D printing, obtained overwrought model;
Step 5: according to overwrought model, repairs carve to be repaired;
Adopting the mode of successively repairing, by repeating step one to step 5, successively repairing;
In step 4, will part be repaired according to moulded dimension: the ratio that full size is less than or equal to 98:100 carries out 3D printing, the obtained repairing model repairing part;
In step 5, repairing model is pasted onto in carve to be repaired, according to overwrought model, surface treatment is carried out to repairing model, complete the reparation to carve to be repaired;
The repairing model of overwrought model, reparation part, all adopts lamination layer structure, and described lamination layer structure comprises model internal layer, model is outer;
Use 3D print system printer model internal layer;
3D print system is provided with at least two containers and two corresponding spray equipments, accommodates magnesium phosphate cement as material container in containers described at least one, containing potassium dihydrogen phosphate, magnesium oxide in described magnesium phosphate cement;
The spray equipment connected is as material spray equipment; Accommodate water in containers described at least one, as water receptacle, the spray equipment connected is as water spray equipment;
First on print platform, spray the magnesium phosphate cement in one deck material container, formed one material bed, then the cross section structure of printing objects sprays water as required, magnesium phosphate cement meets water after-hardening, after sclerosis, the magnesium phosphate cement powder do not reacted with water is removed, required model can be obtained;
Described carve is woodcarving, and the embossed surface paint of reparation is coated with the clear or tung oil of water white dumb light, protects.
2. the overwrought restorative procedure of the historical building based on 3D technology according to claim 1, be is characterized in that: in step one, is obtained the three-dimensional data of carve to be repaired by the mode of 3 D laser scanning.
3. the overwrought restorative procedure of the historical building based on 3D technology according to claim 1, it is characterized in that: by the outer field mode of model internal layer sticker model printed, the repairing model of obtained overwrought model, reparation part, the outer field material of model is identical with the outer field material of carve.
4. the overwrought restorative procedure of the historical building based on 3D technology as claimed in any of claims 1 to 3, is characterized in that: step 6: carry out protective treatment at the embossed surface repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060662.3A CN103264605B (en) | 2012-12-27 | 2013-02-26 | The overwrought restorative procedure of historical building based on 3D technology |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210580796 | 2012-12-27 | ||
| CN201210580796.3 | 2012-12-27 | ||
| CN201310060662.3A CN103264605B (en) | 2012-12-27 | 2013-02-26 | The overwrought restorative procedure of historical building based on 3D technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103264605A CN103264605A (en) | 2013-08-28 |
| CN103264605B true CN103264605B (en) | 2016-01-13 |
Family
ID=49008288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310060662.3A Active CN103264605B (en) | 2012-12-27 | 2013-02-26 | The overwrought restorative procedure of historical building based on 3D technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103264605B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385640A (en) * | 2014-10-20 | 2015-03-04 | 合肥斯科尔智能科技有限公司 | High-precision repairing method for three-dimensional printed product |
| CN104401016B (en) * | 2014-10-20 | 2017-08-08 | 芜湖林一电子科技有限公司 | A kind of method that substandard products are repaired by 3 D-printing |
| CN105513054B (en) * | 2015-11-26 | 2019-03-29 | 北京市计算中心 | Inscription rubbing method based on 3-D scanning |
| US11636282B2 (en) | 2019-06-28 | 2023-04-25 | International Business Machines Corporation | Machine learned historically accurate temporal classification of objects |
| CN111042566A (en) * | 2019-12-27 | 2020-04-21 | 青海民族大学 | Ancient building outer wall repairing method |
| CN111572261A (en) * | 2020-05-23 | 2020-08-25 | 上海建为历保科技股份有限公司 | Brick carving repair method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2813796B2 (en) * | 1995-11-10 | 1998-10-22 | 立体写真像株式会社 | Relief photo statue production method |
| CN1282040A (en) * | 2000-07-22 | 2001-01-31 | 浙江大学 | Auxiliary method for repairing and protecting ancient ruined site and cultural relic being in imminent danger based information technology |
| CN1814459A (en) * | 2005-01-31 | 2006-08-09 | 温永璋 | Method and device for making three-dimensional portrait |
| CN101274577A (en) * | 2008-04-09 | 2008-10-01 | 徐鸿斌 | Digital simplified molding process for sculpture sample manuscript |
-
2013
- 2013-02-26 CN CN201310060662.3A patent/CN103264605B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103264605A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147590B (en) | Based on the historical building floriation restorative procedure of 3D technology | |
| CN103264604B (en) | Based on the historical building method for reparing carved stone of 3D technology | |
| CN103266781B (en) | Based on the historical building tile carving restorative procedure of 3D technology | |
| CN103253061B (en) | Based on the historical building woodcarving restorative procedure of 3D technology | |
| CN103264605B (en) | The overwrought restorative procedure of historical building based on 3D technology | |
| CN106988221B (en) | Unit construction bridge beam construction method based on BIM | |
| Snethlage et al. | Stone conservation | |
| CN106777831A (en) | A kind of construction and decoration method based on BIM | |
| CN110158818B (en) | BIM model-based rapid construction method for plane curtain wall | |
| Brell-Cokcan et al. | Rob| Arch 2012: Robotic fabrication in architecture, art and design | |
| JPH04506778A (en) | Three-dimensional modeling system and method | |
| CN106639323A (en) | Building reconstructing system and method based on three-dimensional laser scanning and three-dimensional printing | |
| US20180186070A1 (en) | Method for manufacturing three-dimensional shape | |
| CN106760436A (en) | A kind of method and apparatus for mounting wall ceramic mosaic graphic pattern automatically using small-sized ceramics | |
| CN107038755A (en) | The method that vector data superposition DSM automatic batch generates threedimensional model | |
| CN107172408A (en) | The high-precision ancient building digital modeling method of single anti-camera work combination traditional measurement | |
| Jesus et al. | The potential of 3D printing in building pathology: rehabilitation of cultural heritage | |
| CN104318610B (en) | Large-space three-dimensional entity line-putting method | |
| CN109671146A (en) | 3D pattern laser carving spraying process | |
| Klöckner et al. | Insights into automation of construction process using parallel-kinematic manipulators | |
| KR100710498B1 (en) | How to make a three-dimensional model set | |
| Banfi et al. | The Arch of Peace of Milan and its historic memory: From 3D survey and HBIM to mixed reality (VR-AR) | |
| CN101494017A (en) | Three-dimensional dynamic exhibition system | |
| CN105888288A (en) | Novel historical building gypsum product repair method | |
| CN107436984A (en) | A kind of wine cellar construction method based on BIM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI JIANWEI LIBAO ENGINEERING TECHNOLOGY CO., Free format text: FORMER OWNER: SHANGHAI JIANWEI BUILDING REPAIR PROJECT CO., LTD. Effective date: 20150420 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201702 QINGPU, SHANGHAI TO: 201306 PUDONG NEW AREA, SHANGHAI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20150420 Address after: 201306, room 333, No. 303-77, West Road, Pudong New Area, Shanghai Applicant after: Shanghai Jianwei Building Renovation Engineering Co., Ltd. Address before: 201702, Qingpu District, Shanghai, Shanghai Qing Ping highway 1362, 1, 1, A District, room 114 Applicant before: Shanghai Jianwei Building Renovation Engineering Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201306 room 303-77, 333 West Road, Pudong New Area, Shanghai Patentee after: Shanghai was established as Polytron Technologies Inc Address before: 201306 room 303-77, 333 West Road, Pudong New Area, Shanghai Patentee before: Shanghai Jianwei Building Renovation Engineering Co., Ltd. |