CN112922585A - Automatic monitoring method for liquid level height of drainage well in subway construction - Google Patents
Automatic monitoring method for liquid level height of drainage well in subway construction Download PDFInfo
- Publication number
- CN112922585A CN112922585A CN202110216098.4A CN202110216098A CN112922585A CN 112922585 A CN112922585 A CN 112922585A CN 202110216098 A CN202110216098 A CN 202110216098A CN 112922585 A CN112922585 A CN 112922585A
- Authority
- CN
- China
- Prior art keywords
- liquid level
- module
- monitoring
- scheme
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims description 14
- 238000012545 processing Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000011161 development Methods 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000012856 packing Methods 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The method comprises the following steps of monitoring the height of a liquid level in a deep well in real time by adopting a laser sensor and utilizing a diffuse reflection principle, adjusting a sampling period according to actual needs, setting a threshold value, sending an instruction to a power module by a data processing unit after the distance between the liquid level and a detection unit exceeds the set threshold value, starting the power module to work, and starting the liquid level monitoring module to ascend or descend; arrange liquid detection module in liquid level monitoring module below, when the liquid level rose suddenly, liquid level monitoring module lower extreme immerses in liquid, liquid detection module switch-on, signals, data processing module received the signal, power module begins work, liquid level monitoring module begins the rising setting value, force laser sensor work simultaneously, send to remote server after the monitoring data packing, the display device position, electric quantity information, water level alarm information, data development curve graph, and can be according to setting for the threshold value, show water level change information in a period of time in the future through the calculation mode.
Description
Technical Field
The invention relates to a method for automatically monitoring the depth of a drainage well in subway construction, belonging to the field of automatic engineering detection.
Background
The problem of accumulated water in a subway construction foundation pit generally exists in a subway line, and the accumulated water can cause the corrosion and even burning of switch machine equipment for a long time, so that the signal system fails and the driving safety is influenced, and therefore a series of drainage wells can be excavated near the foundation pit according to design requirements. The depth of the drainage well is generally deeper, the manual measurement difficulty is higher, and meanwhile, because the subway construction is close to a busy city zone, the measurement of the liquid level of the drainage well has great potential safety hazard. This paper has studied a novel automatic monitoring device of drainage well liquid level, utilizes optical measurement means, combines mechanical electronics technique, remote data technique, realizes the automatic monitoring deep well liquid level change.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems. The invention aims to design an automatic monitoring method for the liquid level height of a drainage deep well in the subway construction process, wherein a liquid level monitoring module adopts a laser sensor (9), the liquid level height in the deep well is monitored in real time by utilizing the diffuse reflection principle, the sampling period is adjustable within 5S-5min, a liquid detection module (10) is arranged below the liquid level monitoring module, and the liquid detection module is switched on and sends a signal when the liquid level rises, so that the equipment is just out of the monitoring period when the liquid level in the well suddenly rises.
The power module adopts a wired power supply (5) and solar storage battery (4) power supply dual mode, so that the condition that the equipment cannot supply power appears, and the equipment can be maintained to operate for more than 5H.
And the power module is used for driving the spool to positively transfer or reversely transfer through a signal instruction to realize the ascending or descending of the liquid level monitoring module.
The data processing module receives the liquid level monitoring module data, sends information to the remote server, and when the signals cannot be transmitted, sends the signals to the abnormal water level warning indicator (1) to send alarm information.
The data communication module is compatible with a 2G-5G data communication format, and data information is sent to the remote server in the form of data packets.
The positioning module supports GPS, Beidou positioning, equipment collects positioning information, and deep well position information is displayed at the server side.
Installing support (3) adopt triangle extending structure, can adapt to the well head size within the specified range, and power device installs and puts at the expansion bracket central point, and lower extreme loading liquid level measurement device, power module are put inside the well head, and solar panel is put outside the deep well, is connected to power module through the wire.
Drawings
FIG. 1: the liquid level of deep well is monitored the device schematic diagram intelligently.
FIG. 2 is a drawing: the liquid level of deep well is high the intellectual monitoring device logic judges the picture.
1. An abnormal water level alarm; 2. a data communication antenna; 3. an equipment mounting bracket; 4. a solar panel; 5. connecting a power line externally; 6. a stepping motor; 7. a bobbin; 8. a pull wire; 9. a laser sensor; 10. a liquid monitoring module.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The invention is described in further detail below with reference to the following figures and examples: the liquid level monitoring module adopts a laser sensor (9), the liquid level height in the deep water well is monitored in real time by utilizing the diffuse reflection principle, the sampling period can be adjusted within 5S-5min according to actual needs, a threshold value is set, when the distance between the liquid level and the detection unit is smaller than the set threshold value, the data processing unit sends an instruction to the power module, the power module starts to work, and the liquid level monitoring module starts to ascend; arrange liquid detection module (10) in liquid level monitoring module below, when the liquid level rose, during liquid level monitoring module lower extreme immersed liquid, liquid detection module switched on, signals, and data processing module received the signal, and power module begins to work, and liquid level monitoring module begins to rise the setting value, forces laser sensor work simultaneously to when the liquid level rose suddenly in the prevention well, equipment just in time was outside monitoring period.
The power module adopts a wired power supply (5) and solar storage battery (4) power supply dual mode, when the circuit normally works, the equipment adopts the circuit for power supply, if the circuit fails, the circuit is switched to the storage battery and the solar power supply module, the situation that the equipment cannot supply power due to the fact that the circuit is broken due to an accident situation is prevented, the solar energy is connected with the storage battery, and the equipment can be maintained to operate for more than 5H.
The power module comprises a stepping motor (6), a stepping motor reducer and a bobbin (7) module, the stepping motor receives the instruction of the signal processing module, the stepping motor starts to rotate forwards or backwards according to the signal requirement, and the driving bobbin is driven to rotate forwards or backwards to realize that the liquid level monitoring module rises or falls to a set value.
The data processing module receives the data of the liquid level monitoring module, the data are processed by a data comparison method, when the liquid level is high or low, an instruction signal is sent to the power module, meanwhile, the data transmission module (2) is provided to send information to the remote server, and when the signal cannot be transmitted, a signal is sent to the abnormal water level warning indicator (1) to send alarm information.
The data communication module is compatible with a 2G-5G data communication format, and data information is sent to the remote server in the form of data packets.
The positioning module supports GPS, Beidou positioning, equipment collects positioning information, and deep well position information is displayed at the server side.
The remote server receives the information of the data communication module, displays the position of the equipment, the electric quantity information, the water level alarm information and the data development curve chart, and can display the water level change information in a future period of time in a calculation mode according to a set threshold value.
Installing support 3 adopts triangle extending structure, can adapt to the well head size within the specified scope, and power device installs and puts at the expansion bracket central point, lower extreme loading liquid level measurement device, and power module puts inside the well head, and solar panel puts outside the deep well, is connected to power module through the wire.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The automatic monitoring method for the liquid level of the drainage well in the subway construction is characterized by comprising the following scheme: the system comprises a liquid level depth automatic calibration scheme, a power management scheme, a data processing scheme, a liquid level height monitoring self-adaption scheme, a liquid level abnormity warning scheme, a remote data processing scheme and an equipment recycling scheme, and is used for monitoring the liquid level height change of the deep well in real time and sending warning information.
2. The method for automatically monitoring the liquid level of the drainage well in subway construction as claimed in claim 1, wherein said automatic liquid level depth calibration scheme uses a laser sensor, uses the principle of diffuse reflection to monitor the liquid level in real time, and the sampling period interval can be adjusted according to 5S-5 min; the liquid detection module is arranged below the liquid level monitoring module, when the liquid level rises, the liquid detection module is immersed in liquid, the sensor is switched on to send out a signal, and the liquid level monitoring module rises to be separated from the liquid level.
3. The method for automatically monitoring the liquid level of the drainage well in subway construction as claimed in claim 2, wherein said liquid level monitoring adaptive scheme is composed of a step motor, a step motor reducer and a bobbin module, and the step motor receives the instruction of the signal processing module to drive the bobbin to rotate forward or backward to realize the ascending or descending of the liquid level monitoring module.
4. The method for automatically monitoring the liquid level of the drainage well in subway construction as claimed in claim 1, wherein said power management scheme adopts a dual mode of wired power supply and solar storage battery power supply, so as to prevent the line from being broken due to accident, prevent the equipment from being unable to supply power, and prevent the solar energy from being connected with the storage battery, so as to maintain the equipment to operate for more than 5 hours.
5. The automatic monitoring method for the liquid level of the drainage well in the subway construction as claimed in claim 1, wherein in the data processing scheme, the data communication module is compatible with 2G-5G data communication format, and data information is sent to the remote server in the form of data packet; the positioning module supports GPS, Beidou positioning, equipment collects positioning information, and deep well position information is displayed at the server side.
6. The method for automatically monitoring the liquid level of the drainage well in the subway construction as claimed in claim 1, wherein the liquid level abnormality warning scheme is characterized in that a data comparison method is adopted to process data, when the liquid level becomes high, an instruction signal is sent to the power module, meanwhile, the data transmission module is provided to send information to the remote server, and when the signal cannot be transmitted, a signal is sent to the warning device to send warning information.
7. The method for automatically monitoring the liquid level of the drainage well in the subway construction as claimed in claim 1, wherein in said remote data processing scheme, the remote server receives the information of the data communication module, displays the position of the equipment, the electric quantity information, the water level alarm information and the data development curve chart, and can display the water level change information in a future period of time in a calculation mode according to the set threshold value.
8. The method for automatically monitoring the liquid level of the drainage well in the subway construction as claimed in claim 1, wherein the equipment recycling scheme is that the mounting bracket adopts a triangular telescopic structure and can adapt to the well mouth size within the specified range, the power device is mounted at the central position of the telescopic bracket, the liquid level measuring device is loaded at the lower end of the telescopic bracket, the power module is placed inside the well mouth, and the solar panel is placed outside the deep well and is connected to the power module through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216098.4A CN112922585A (en) | 2021-02-26 | 2021-02-26 | Automatic monitoring method for liquid level height of drainage well in subway construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216098.4A CN112922585A (en) | 2021-02-26 | 2021-02-26 | Automatic monitoring method for liquid level height of drainage well in subway construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112922585A true CN112922585A (en) | 2021-06-08 |
Family
ID=76172135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110216098.4A Pending CN112922585A (en) | 2021-02-26 | 2021-02-26 | Automatic monitoring method for liquid level height of drainage well in subway construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112922585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323203A (en) * | 2021-12-15 | 2022-04-12 | 新疆维吾尔自治区水资源中心 | Underground water level monitoring and early warning system |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691113A (en) * | 1984-10-26 | 1987-09-01 | The British Petroleum Company P.L.C. | Level indicator for a liquid in a container |
| US5243860A (en) * | 1992-01-22 | 1993-09-14 | Whessoe Plc | Liquid level measurement |
| CN2779356Y (en) * | 2004-12-24 | 2006-05-10 | 井冈山学院 | Liquid level monitoring and recording instrument |
| CN101839750A (en) * | 2010-04-09 | 2010-09-22 | 温京辉 | Numerically controlled water level |
| CN103926112A (en) * | 2014-04-22 | 2014-07-16 | 同济大学 | Method and device capable of measuring water level and in-situ dissolved oxygen and collecting underground water at different depths |
| CN104697608A (en) * | 2015-03-09 | 2015-06-10 | 上海同岩土木工程科技有限公司 | Automatic measurement method and device of water level of observation well based on laser displacement sensor |
| CN204422020U (en) * | 2014-11-06 | 2015-06-24 | 杭州辉厚科技有限公司 | Water level monitoring system |
| CN104929143A (en) * | 2015-04-27 | 2015-09-23 | 华东交通大学 | Well sealing method of dewatering well at bottom of foundation pit |
| CN204854869U (en) * | 2015-07-13 | 2015-12-09 | 河南丰之源生物科技有限公司 | Liquid level automatic checkout device |
| CN105134177A (en) * | 2015-08-26 | 2015-12-09 | 中国农业大学 | Online monitoring device for liquid level of brine extracting well |
| CN105716685A (en) * | 2016-03-28 | 2016-06-29 | 华南农业大学 | Liquid level monitoring device and liquid level monitoring method |
| CN205483179U (en) * | 2016-04-11 | 2016-08-17 | 成都理工大学 | Geotechnical engineering reconnaissance drilling water level measuring apparatu |
| CN206737909U (en) * | 2017-02-24 | 2017-12-12 | 浙江水文新技术开发经营公司 | A kind of straight well formula laser level measurement device |
| CN206990058U (en) * | 2017-08-11 | 2018-02-09 | 北京清环智慧水务科技有限公司 | A kind of level monitoring device |
| CN107907183A (en) * | 2017-12-11 | 2018-04-13 | 三峡大学 | A kind of device and method of the level of ground water of monitoring in real time |
| CN108917880A (en) * | 2018-09-12 | 2018-11-30 | 河北工业大学 | A kind of deep basal pit level of ground water remote supervision system |
| CN109932021A (en) * | 2019-04-08 | 2019-06-25 | 张大鸿 | Trailing type laser water-level gauge |
| CN110631654A (en) * | 2019-10-09 | 2019-12-31 | 刘福东 | Depth measurement method based on underground water |
| CN210166018U (en) * | 2019-09-05 | 2020-03-20 | 大连新兴地下土木工程技术发展有限公司 | Subway station foundation pit underground water level real-time supervision device |
| CN111366212A (en) * | 2020-05-09 | 2020-07-03 | 河北省地质环境监测院 | Unattended underground water level detector |
-
2021
- 2021-02-26 CN CN202110216098.4A patent/CN112922585A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691113A (en) * | 1984-10-26 | 1987-09-01 | The British Petroleum Company P.L.C. | Level indicator for a liquid in a container |
| US5243860A (en) * | 1992-01-22 | 1993-09-14 | Whessoe Plc | Liquid level measurement |
| CN2779356Y (en) * | 2004-12-24 | 2006-05-10 | 井冈山学院 | Liquid level monitoring and recording instrument |
| CN101839750A (en) * | 2010-04-09 | 2010-09-22 | 温京辉 | Numerically controlled water level |
| CN103926112A (en) * | 2014-04-22 | 2014-07-16 | 同济大学 | Method and device capable of measuring water level and in-situ dissolved oxygen and collecting underground water at different depths |
| CN204422020U (en) * | 2014-11-06 | 2015-06-24 | 杭州辉厚科技有限公司 | Water level monitoring system |
| CN104697608A (en) * | 2015-03-09 | 2015-06-10 | 上海同岩土木工程科技有限公司 | Automatic measurement method and device of water level of observation well based on laser displacement sensor |
| CN104929143A (en) * | 2015-04-27 | 2015-09-23 | 华东交通大学 | Well sealing method of dewatering well at bottom of foundation pit |
| CN204854869U (en) * | 2015-07-13 | 2015-12-09 | 河南丰之源生物科技有限公司 | Liquid level automatic checkout device |
| CN105134177A (en) * | 2015-08-26 | 2015-12-09 | 中国农业大学 | Online monitoring device for liquid level of brine extracting well |
| CN105716685A (en) * | 2016-03-28 | 2016-06-29 | 华南农业大学 | Liquid level monitoring device and liquid level monitoring method |
| CN205483179U (en) * | 2016-04-11 | 2016-08-17 | 成都理工大学 | Geotechnical engineering reconnaissance drilling water level measuring apparatu |
| CN206737909U (en) * | 2017-02-24 | 2017-12-12 | 浙江水文新技术开发经营公司 | A kind of straight well formula laser level measurement device |
| CN206990058U (en) * | 2017-08-11 | 2018-02-09 | 北京清环智慧水务科技有限公司 | A kind of level monitoring device |
| CN107907183A (en) * | 2017-12-11 | 2018-04-13 | 三峡大学 | A kind of device and method of the level of ground water of monitoring in real time |
| CN108917880A (en) * | 2018-09-12 | 2018-11-30 | 河北工业大学 | A kind of deep basal pit level of ground water remote supervision system |
| CN109932021A (en) * | 2019-04-08 | 2019-06-25 | 张大鸿 | Trailing type laser water-level gauge |
| CN210166018U (en) * | 2019-09-05 | 2020-03-20 | 大连新兴地下土木工程技术发展有限公司 | Subway station foundation pit underground water level real-time supervision device |
| CN110631654A (en) * | 2019-10-09 | 2019-12-31 | 刘福东 | Depth measurement method based on underground water |
| CN111366212A (en) * | 2020-05-09 | 2020-07-03 | 河北省地质环境监测院 | Unattended underground water level detector |
Non-Patent Citations (6)
| Title |
|---|
| 刘亚军等: "激光液面监测与报警模拟系统", 《电子测量技术》, vol. 33, no. 5, 30 October 2010 (2010-10-30), pages 122 - 125 * |
| 张小飞等: "深孔水位监测装置的设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》, no. 3, 15 March 2020 (2020-03-15), pages 021 - 345 * |
| 张明钟等: "《5G赋能》", vol. 1, 31 July 2020, 北京：中国纺织出版社, pages: 25 * |
| 李树楷等: "《全球环境、资源遥感分析》", vol. 1, 31 December 1992, 北京：测绘出版社, pages: 54 - 56 * |
| 杨世德等: "工程机械设备智能化管理初探", 《现代制造技术与装备》, no. 8, 31 August 2019 (2019-08-31), pages 211 - 212 * |
| 谢国红等: "基于CCD激光传感器液位高精度检测系统的研究", 《中国优秀硕士学位论文全文数据库信息科技辑》, no. 4, 15 April 2012 (2012-04-15), pages 140 - 280 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323203A (en) * | 2021-12-15 | 2022-04-12 | 新疆维吾尔自治区水资源中心 | Underground water level monitoring and early warning system |
| CN114323203B (en) * | 2021-12-15 | 2024-04-19 | 新疆维吾尔自治区水资源中心 | Groundwater level monitoring and early warning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101200895B1 (en) | Ocean observing bouy system and method using wireless communication modem | |
| CN112050909B (en) | Water level safety monitoring system | |
| KR101448435B1 (en) | Level measuring device and a measuring method | |
| CN112922585A (en) | Automatic monitoring method for liquid level height of drainage well in subway construction | |
| CN105716585A (en) | Self-drive radar wave flow measuring equipment based on conventional hydrological cableway | |
| CN1109235C (en) | Pneumatic liquid level indicator | |
| CN111351915A (en) | Water environment monitoring system and quality control analysis method | |
| EP3643667B1 (en) | Water detection in elevator pit using pit sensors | |
| CN220136462U (en) | Warning device for water level warning of underground water monitoring well | |
| JP2012127878A (en) | Liquid level displacement detection system and liquid level displacement detection method | |
| CN103806486B (en) | A kind of Double-wheel milling carriage arbor auto-feed control method, system and controller | |
| CN105955325A (en) | Side-mounted floating ball liquid level monitoring device based on local area network | |
| CN213778951U (en) | Self-floating type device and system for monitoring lifting state of flood control panel wall on line | |
| CN215729371U (en) | Control system for lifting equipment | |
| CN213397270U (en) | Water level monitoring device for hydraulic engineering | |
| CN215114531U (en) | Foundation pit inclination angle inclinometer | |
| CN212633688U (en) | Sensor assembly based on laser inspection well water level and acceleration well lid displacement | |
| CN210865021U (en) | Well lid alarm and alarm system | |
| CN209948996U (en) | Motor closed-loop monitoring control system | |
| CN221706686U (en) | A drilling fluid level alarm device | |
| CN214577180U (en) | Underground water sump with water level warning device | |
| CN213016846U (en) | Automatic start-stop protection device for submerged pump | |
| CN211696607U (en) | Remote monitoring device for reservoir water level | |
| CN219825011U (en) | Lifting column system and protection system | |
| CN215761636U (en) | Wireless activation device of angular displacement sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 330100 Jiangxi city of Nanchang Province Economic and Technological Development Zone HUANGJIAHU Road No. 111 Applicant after: Nanchang Jiaotong University Address before: 330100 Jiangxi city of Nanchang Province Economic and Technological Development Zone HUANGJIAHU Road No. 111 Applicant before: INSTITUTE OF TECHNOLOGY EAST CHINA JIAO TONG University |
|
| CB02 | Change of applicant information |