CN117233811A - Beidou GNSS monitoring station resolving frequency modification method based on rain gauge - Google Patents
Beidou GNSS monitoring station resolving frequency modification method based on rain gauge Download PDFInfo
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Abstract
The application provides a Beidou GNSS monitoring station resolving frequency modification method based on a rain gauge, and belongs to the technical field of resolving frequency modification. The method comprises the following steps: s1, fixing a rain gauge on an upright post of a Beidou GNSS monitoring station through a magnetic absorption chassis for monitoring the rain amount in real time; s2, building a Beidou GNSS monitoring station to monitor the deformation of the side slope in real time, and setting data resolving to be static resolving, wherein resolving frequency is 1h each time; s3, uploading the rainfall and the deformation of the slope to a slope apparent displacement deformation monitoring system for display, storage and decoding; s4, setting a rainfall alarm threshold, predicting rainfall based on short-time rainfall, and alarming when the predicted rainfall reaches the rainfall alarm threshold, and triggering and changing the resolving frequency; the problem that the manual change of the resolving frequency is not timely is solved, the static resolving high-precision measurement in a normal state is realized, meanwhile, the dynamic resolving can be realized in an emergency, and the deformation condition can be resolved in real time.
Description
Technical Field
The application relates to a method for modifying resolving frequency of a monitoring station, in particular to a method for modifying resolving frequency of a Beidou GNSS monitoring station based on a rain gauge, and belongs to the technical field of resolving frequency modification.
Background
The safety and stability of the side slope are critical to the safety operation of the city, the multi-parameter monitoring is carried out on the side slope, and the early warning of the side slope is one of the important means for the current safety monitoring of the side slope. The rainfall and apparent displacement are two important monitoring indexes, the rainfall is mainly monitored through a rain gauge, and the apparent displacement is mainly monitored through a mode of establishing a Beidou GNSS monitoring station.
The slope apparent displacement monitoring is mainly carried out by depending on a Beidou GNSS monitoring station, but a certain observation period is needed to obtain accurate test data. The Beidou GNSS monitoring station analyzes the data, and is generally divided into dynamic resolving and static resolving, wherein the static resolving frequency in the side slope is generally 1h, the precision can reach millimeter level, the dynamic resolving is 1s-1min, and the precision is centimeter level. For long-term stability slopes, the monitoring frequency need not be as high, but emergency changes in the solution frequency of the monitoring station are required when emergency situations are encountered. By manual change, there may be situations of timeliness and inaccuracy.
Disclosure of Invention
The following presents a simplified summary of the application in order to provide a basic understanding of some aspects of the application. It should be understood that this summary is not an exhaustive overview of the application. It is not intended to identify key or critical elements of the application or to delineate the scope of the application. Its purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
In view of the above, the application provides a Beidou GNSS monitoring station resolving frequency modification method based on a rain gauge for solving the technical problem that resolving frequency is not timely manually changed in the prior art.
According to the scheme I, the Beidou GNSS monitoring station resolving frequency modification method based on the rain gauge comprises the following steps of:
s1, fixing a rain gauge on an upright post of a Beidou GNSS monitoring station through a magnetic absorption chassis for monitoring the rain amount in real time;
s2, building a Beidou GNSS monitoring station to monitor the deformation of the side slope in real time, and setting data resolving to be static resolving, wherein resolving frequency is 1h each time;
s3, uploading the rainfall and the deformation of the slope to a slope apparent displacement deformation monitoring system for display, storage and decoding;
s4, setting a rainfall alarm threshold, predicting rainfall based on short-time rainfall, and alarming when the predicted rainfall reaches the rainfall alarm threshold, and triggering and changing the resolving frequency;
the rainfall alarm threshold is divided into four stages A, B, C, D, which are respectively: the rainfall in 12 hours of the A level threshold value reaches 50 mm; the rainfall in class B threshold is 50 mm within 6 hours; the rainfall in 3 hours of the C level threshold value reaches 50 mm; the rainfall in 3 hours of the D level threshold value reaches 100 mm;
the method based on the short-time rainfall prediction result comprises the following steps: based on the rainfall data monitored in real time by the rainfall gauge, the change rate of the rainfall data is calculated, the rainfall increase speed in 10min is obtained, and the rainfall data in the next time period is predicted based on the increase speed, wherein the formula is as follows: y=a+bx, where Y is the predicted rainfall, a is the current rainfall, and b is the rainfall speed within 10min; x is time; the calculating method of b is as follows: dividing the total rainfall in 10min by 10min; b value is refreshed every 30min to obtain the rainfall speed in different time;
the method for changing the solution frequency is as follows:
setting the number of the ephemeris elements of the calculated data as m when the manual calculation frequency is set to be 1h, and calculating 1 deformation data on time after 1h when the number of the ephemeris elements reaches m;
matching the rainfall prediction data with the resolving frequency, namely m=1h, n=0.8h, p=0.5h, q=1 min and r=1 s; wherein m, n, p, q, r is the 1h ephemeris, 0.8h ephemeris, 0.5h ephemeris, 1min ephemeris, 1s ephemeris;
when the predicted data Y of the rainfall is larger than the A value, namely triggering data calculation change, reducing the calculated ephemeris number to n, and automatically changing the calculation time of slope apparent displacement deformation monitoring data from 1h to 0.8h by the system;
when the predicted data Y of the rainfall is greater than the B value, namely triggering data calculation change, and reducing the calculated ephemeris number to p, automatically changing the calculation time of slope apparent displacement deformation monitoring data from 1h to 0.5h by the system;
when the rainfall prediction data Y > C value, namely triggering data calculation change, reducing the calculated ephemeris number to q, and automatically changing the slope apparent displacement deformation monitoring data calculation time from 1h to 1min by the system;
when the rainfall forecast data Y & ltD & gt is in a value, namely triggering data resolving change, and reducing the resolved ephemeris number to r, automatically changing the resolving time of slope apparent displacement deformation monitoring data from 1h to 1s by a system;
meanwhile, if the rainfall is reduced, the calculation frequency is sequentially increased to 1h.
Preferably, the rain gauge includes: the device comprises a bearing barrel, a compression spring, a movable disc, a water outlet pipe and a device body;
the bearing barrel is internally provided with a movable disc; the outer wall of the movable disc is tightly attached to the side wall of the bearing barrel; the bottom of the movable disc is connected with the top of the compression spring; the water outlet pipe is arranged at the bottom of the bearing barrel;
the bearing bucket is installed on the device body, the device body includes: the device comprises a shell, a force transmission column, a force transmission rod, an induction spring, a pressure induction sheet, a fiber bragg grating strain sensor, a force transmission plate, a sliding plate and a sliding plate base, wherein the force transmission column, the force transmission rod, the induction spring, the pressure induction sheet, the fiber bragg grating strain sensor, the force transmission plate, the sliding plate and the sliding plate base are arranged in the shell, and a bracket is arranged at the bottom of the shell;
the top of the dowel bar is connected with the bottom of the compression spring, and the bottom of the dowel bar is connected with a dowel plate;
four sliding plate bases are arranged on the support in a circumferential array mode; the sliding plate base is provided with a sliding plate in a sliding manner, and a vertical arm of the sliding plate base is provided with a fiber bragg grating strain sensor; the fiber bragg grating strain sensor is provided with a pressure sensing piece; the sliding plate is connected with the pressure sensing piece through the sensing spring; the bottom of the force transmission column is hinged with the sliding plate, and the top of the force transmission column is hinged with the force transmission plate.
The beneficial effects of the application are as follows: the application utilizes the obvious advantages of high precision, good performance, difficult interference by external environment and the like of the fiber bragg grating strain sensor 9 to realize the accurate measurement of rainfall, and has the advantages of stable long-term performance, high test precision and the like. The application can realize the static resolving high-precision measurement in normal state and simultaneously realize dynamic resolving and real-time resolving deformation condition and timely alarming in emergency situation by triggering resolving frequency of the Beidou GNSS monitoring station in linkage. The function of small deformation high-precision measurement and large deformation rapid alarm is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of a Beidou GNSS monitoring station resolving frequency modification method based on a rain gauge;
FIG. 2 is a block diagram of a rain gauge;
FIG. 3 is a perspective view of a rain gauge;
fig. 4 is a diagram of the Beidou GNSS monitoring station and the rain gauge.
Wherein, the bearing barrel-1; a compression spring-2; a mobile disc-3; a water outlet pipe-4; a force transfer device-5; a dowel bar-6; an inductive spring-7; a pressure sensing sheet-8; a fiber bragg grating strain sensor-9; rain gauge-10; a lightning rod-11; beidou-GNSS 12; a solar panel-13; a distribution box-14; upright posts-15; cement foundation-16; a force transfer plate 17; a slide plate 18; a bracket 20.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
Embodiment 1, the method for modifying the calculated frequency of the Beidou GNSS monitoring station based on the rain gauge 10 is described with reference to fig. 1 to 4, and includes the following steps:
s1, fixing a rain gauge 10 on an upright post of a Beidou GNSS monitoring station through a magnetic attraction chassis to form an integral structure with the Beidou GNSS monitoring station, and monitoring rainfall in real time;
s2, building a Beidou GNSS monitoring station to monitor the deformation of the side slope in real time, and setting data resolving to be static resolving, wherein resolving frequency is 1h each time;
s3, uploading the rainfall and the deformation of the slope to a slope apparent displacement deformation monitoring system for display, storage and decoding;
the rainfall data and the Beidou GNSS monitoring station can be uploaded to a slope apparent displacement deformation monitoring system in real time through an embedded Internet of things card, and the system comprises a slope apparent displacement deformation monitoring data display module, a rainfall triggering apparent displacement Beidou resolving module and a data storage module. The early warning information can be sent timely through the reserved contact way of the system. The rain gauge 10 monitors the real-time storage of data in the data storage module; and setting the data resolving frequency of the Beidou GNSS monitoring station in the resolving module to be 1h, namely, 1h to calculate the primary slope deformation.
S4, setting a rainfall alarm threshold, predicting rainfall based on short-time rainfall, and alarming when the predicted rainfall reaches the rainfall alarm threshold, and triggering and changing the resolving frequency;
the rainfall alarm threshold is divided into four stages A, B, C, D, which are respectively: the rainfall in 12 hours of the A level threshold value reaches 50 mm; the rainfall in class B threshold is 50 mm within 6 hours; the rainfall in 3 hours of the C level threshold value reaches 50 mm; the rainfall in 3 hours of the D level threshold value reaches 100 mm;
the rain gauge 10 can monitor the rain data in real time, and transmit the data back to the slope apparent displacement deformation monitoring system, and the data storage module calculates the change rate of the rain data to obtain the increase speed of the rain in 10min, and automatically predicts the rain data of the next time period based on the speed; namely, the method based on the short-time rainfall prediction result is as follows: based on the rainfall data monitored in real time by the rainfall meter 10, the change rate of the rainfall data is calculated, the rainfall increase speed in 10min is obtained, and the rainfall data in the next time period is predicted based on the increase speed, wherein the formula is as follows: y=a+bx, where Y is the predicted rainfall, a is the current rainfall, and b is the rainfall speed within 10min; x is time; the calculating method of b is as follows: dividing the total rainfall in 10min by 10min; and refreshing the value b every 30min to obtain the rainfall speed in different time.
Specifically, the rainfall data is transmitted to the monitoring platform and the Beidou monitoring platform in real time through the embedded Internet of things card, and early warning information is timely sent.
The method for changing the solution frequency is as follows:
setting the number of the ephemeris elements of the calculated data as m when the manual calculation frequency is set to be 1h, and calculating 1 deformation data on time after 1h when the number of the ephemeris elements reaches m;
matching the rainfall prediction data with the resolving frequency, namely m=1h, n=0.8h, p=0.5h, q=1 min and r=1 s; wherein m, n, p, q, r is the 1h ephemeris, 0.8h ephemeris, 0.5h ephemeris, 1min ephemeris, 1s ephemeris;
when the predicted data Y of the rainfall is greater than the A value, namely triggering data calculation change, reducing the calculated ephemeris number to n, automatically changing the Beidou calculation time in the slope apparent displacement deformation monitoring data display module from 1h to 0.8h by the system;
when the predicted data Y of the rainfall is greater than the B value, namely triggering data calculation change, reducing the calculated ephemeris number to p, automatically changing the Beidou calculation time in the slope apparent displacement deformation monitoring data display module from 1h to 0.5h by the system;
when the rainfall prediction data Y > C value, namely triggering data calculation change, reducing the calculated ephemeris number to q, automatically changing the Beidou calculation time in the slope apparent displacement deformation monitoring data display module from 1h to 1min by the system;
when the rainfall prediction data Y & ltD & gt is in a value, namely triggering data calculation change, reducing the calculated ephemeris number to r, automatically changing Beidou calculation time in a slope apparent displacement deformation monitoring data display module from 1h to 1s by a system;
meanwhile, if the rainfall is reduced, the calculation frequency is sequentially increased to 1h.
Specifically, the normal GNSS device is limited by the resolving time length, and the longer the time is, the higher the accuracy is. Most of landslide of the side slope occurs in the rainfall period, if the time length is calculated by artificial setting, the modification is not timely, the equipment needs to be modified in a large quantity, and the time and the labor are consumed. In order to solve the problem, the modification of the resolving time of the Beidou GNSS equipment can be automatically realized by utilizing the threshold setting and predicting method of the rain gauge 10, the timeliness and the accuracy of monitoring are improved, early warning signals are ensured to be sent out in time, and people and property are transferred in time.
The rain gauge 10 includes: the device comprises a bearing barrel 1, a compression spring 2, a movable disc 3, a water outlet pipe 4 and a device body;
the bearing barrel 1 is internally provided with a movable disc 3; the outer wall of the movable disc 3 is tightly attached to the side wall of the bearing barrel 1; the bottom of the movable disc 3 is connected with the top of the compression spring 2; the water outlet pipe 4 is arranged at the bottom of the bearing barrel 1;
the bearing barrel 1 is installed on the device body, and the device body comprises: the device comprises a shell, a force transmission column 5, a force transmission rod 6, a sensing spring 7, a pressure sensing piece 8, a fiber bragg grating strain sensor 9, a force transmission plate 17, a sliding plate 18, a sliding plate base 19 and a bracket 20, wherein the force transmission column, the force transmission rod 6, the sensing spring 7, the pressure sensing piece 8, the fiber bragg grating strain sensor 9, the force transmission plate base 19 and the bracket 20 are arranged in the shell;
four sliding plate bases 19 are arranged on the bracket 20 in a circumferential array; a sliding plate 18 is slidably arranged on one side of the sliding plate base 19, and a fiber bragg grating strain sensor 9 is arranged on the other side of the sliding plate base; the fiber bragg grating strain sensor 9 is provided with a pressure sensing piece 8; one side of the sliding plate 18 is connected with the pressure sensing piece 8 through the sensing spring 7, and the other side is connected with the bottom of the force transmission column 5; the top of the force transmission column 5 is connected with the bottom of the force transmission plate 17; the top of the force transfer plate 17 is connected with the bottom of the force transfer rod 6; the top of the dowel bar 6 is connected with the bottom of the compression spring 2.
The implementation principle of the rain gauge 10: the rainwater falls into the bearing barrel 1, the disc 3 which can move up and down is lowered due to the gravity of the rainwater, and the rainwater in the bearing barrel 1 reaches a certain measuring range, so that the water automatically flows out of the water outlet pipe 4 and the measurement is restarted; the height of the bearing barrel 1 is adjustable, the compression spring 7 can be sensitive to small changes of rainfall, and when water is exhausted and rains out, the movable disc 3 is restored in time.
The bearing barrel 1 and rainwater are a gravity whole, the gravity whole is conveyed to the force transmission column 5 through the force transmission rod 6 to be pressed to move to the periphery, the sliding plate 18 is pushed, the pressure sensing piece 8 is extruded by the sensing spring 7, the pressure sensing piece 8 is deformed, the deformation variable quantity can be measured in real time by the fiber bragg grating strain sensor 9, the rainfall is calibrated through strain data fitting, the rainfall is reflected in real time, and the sensing spring 7 automatically recovers when in rainstop.
Specifically, the sensing springs are springs with small rigidity, and can accurately sense small rainfall.
The force transmission column 5 is pressed to move to the periphery, so that the weight of rainwater is uniformly and firmly conducted, the structure is prevented from being damaged due to the large weight of the rainwater in extreme weather such as heavy rain, the fiber bragg grating strain sensor is damaged, and long-term safe and effective monitoring of the fiber bragg grating strain sensor is ensured.
The magnetic absorption chassis can fixedly absorb the rain gauge 10 on the stand column of the Beidou GNSS monitoring station, and has the advantage of convenience in installation.
Beidou GNSS monitoring station: the method comprises the steps of positioning by using a global navigation satellite system, and identifying structural deformation according to the difference between the positioning and the positioning of a GNSS Beidou reference station, wherein the structural deformation comprises a lightning rod 11, a Beidou GNSS12, a solar panel 13, a distribution box 14, a stand column 15 and a cement foundation 16, and the distribution box 14 is a lightning protection module and a storage battery;
slope apparent displacement deformation monitoring system: the system comprises a slope apparent displacement deformation monitoring data display module, a rainfall triggering apparent displacement Beidou calculation module and a data storage module, wherein the data storage module is respectively connected with the slope apparent displacement deformation monitoring data display module and the rainfall triggering apparent displacement Beidou calculation module; the storage module is used for storing the real-time data monitored by the rain gauge 10 and the deformation of the side slope monitored by the Beidou GNSS monitoring station in real time; the slope apparent displacement deformation monitoring data display module is used for displaying the real-time data monitored by the rain gauge 10 and the deformation and data resolving frequency of the slope monitored by the Beidou GNSS monitoring station in real time, and the rain triggering apparent displacement Beidou resolving module is used for changing the computation of the resolving frequency.
While the application has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of the above description, will appreciate that other embodiments are contemplated within the scope of the application as described herein. Furthermore, it should be noted that the language used in the specification has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter. Accordingly, many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the appended claims. The disclosure of the present application is intended to be illustrative, but not limiting, of the scope of the application, which is defined by the appended claims.
Claims (2)
1. The Beidou GNSS monitoring station resolving frequency modification method based on the rain gauge is characterized by comprising the following steps of:
s1, fixing a rain gauge (10) on an upright post of a Beidou GNSS monitoring station through a magnetic absorption chassis for monitoring rainfall in real time;
s2, building a Beidou GNSS monitoring station to monitor the deformation of the side slope in real time, and setting data resolving to be static resolving, wherein resolving frequency is 1h each time;
s3, uploading the rainfall and the deformation of the slope to a slope apparent displacement deformation monitoring system for display, storage and decoding;
s4, setting a rainfall alarm threshold, predicting rainfall based on short-time rainfall, and alarming when the predicted rainfall reaches the rainfall alarm threshold, and triggering and changing the resolving frequency;
the rainfall alarm threshold is divided into four stages A, B, C, D, which are respectively: the rainfall in 12 hours of the A level threshold value reaches 50 mm; the rainfall in class B threshold is 50 mm within 6 hours; the rainfall in 3 hours of the C level threshold value reaches 50 mm; the rainfall in 3 hours of the D level threshold value reaches 100 mm;
the method based on the short-time rainfall prediction result comprises the following steps: based on the rainfall data monitored in real time by the rainfall gauge, the change rate of the rainfall data is calculated, the rainfall increase speed in 10min is obtained, and the rainfall data in the next time period is predicted based on the increase speed, wherein the formula is as follows: y=a+bx, where Y is the predicted rainfall, a is the current rainfall, and b is the rainfall speed within 10min; x is time; the calculating method of b is as follows: dividing the total rainfall in 10min by 10min; b value is refreshed every 30min to obtain the rainfall speed in different time;
the method for changing the solution frequency is as follows:
setting the number of the ephemeris elements of the calculated data as m when the manual calculation frequency is set to be 1h, and calculating 1 deformation data on time after 1h when the number of the ephemeris elements reaches m;
matching the rainfall prediction data with the resolving frequency, namely m=1h, n=0.8h, p=0.5h, q=1 min and r=1 s; wherein m, n, p, q, r is the 1h ephemeris, 0.8h ephemeris, 0.5h ephemeris, 1min ephemeris, 1s ephemeris;
when the predicted data Y of the rainfall is larger than the A value, namely triggering data calculation change, reducing the calculated ephemeris number to n, and automatically changing the calculation time of slope apparent displacement deformation monitoring data from 1h to 0.8h by the system;
when the predicted data Y of the rainfall is greater than the B value, namely triggering data calculation change, and reducing the calculated ephemeris number to p, automatically changing the calculation time of slope apparent displacement deformation monitoring data from 1h to 0.5h by the system;
when the rainfall prediction data Y > C value, namely triggering data calculation change, reducing the calculated ephemeris number to q, and automatically changing the slope apparent displacement deformation monitoring data calculation time from 1h to 1min by the system;
when the rainfall forecast data Y & ltD & gt is in a value, namely triggering data resolving change, and reducing the resolved ephemeris number to r, automatically changing the resolving time of slope apparent displacement deformation monitoring data from 1h to 1s by a system;
meanwhile, if the rainfall is reduced, the calculation frequency is sequentially increased to 1h.
2. The raingauge-based beidou GNSS monitoring station solution frequency modification method according to claim 1, wherein the raingauge (10) comprises: the device comprises a bearing barrel (1), a compression spring (2), a movable disc (3), a water outlet pipe (4) and a device body;
a movable disc (3) is arranged in the bearing barrel (1); the outer wall of the movable disc (3) is tightly attached to the side wall of the bearing barrel (1); the bottom of the movable disc (3) is connected with the top of the compression spring (2); the water outlet pipe (4) is arranged at the bottom of the bearing barrel (1);
the bearing barrel (1) is installed on the device body, and the device body comprises: the device comprises a shell, a force transmission column (5), a force transmission rod (6), an induction spring (7), a pressure induction piece (8), a fiber bragg grating strain sensor (9), a force transmission plate (17), a sliding plate (18) and a sliding plate base (19) which are arranged in the shell, wherein a bracket (20) is arranged at the bottom of the shell;
the top of the dowel bar (6) is connected with the bottom of the compression spring (2), and the bottom of the dowel bar (6) is connected with a dowel plate (17);
four sliding plate bases (19) are circumferentially arranged on the bracket (20); a sliding plate (18) is slidably arranged on the sliding plate base (19), and a fiber bragg grating strain sensor (9) is arranged on a vertical arm of the sliding plate base (19); the fiber bragg grating strain sensor (9) is provided with a pressure sensing sheet (8); the sliding plate (18) is connected with the pressure sensing piece (8) through the sensing spring (7); the bottom of the force transmission column (5) is hinged with the sliding plate (18), and the top of the force transmission column is hinged with the force transmission plate (17).
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080093715A (en) * | 2007-04-18 | 2008-10-22 | (주)바이텍코리아 | Steeped slope breakdown sensing system and sensing method |
| CN103809223A (en) * | 2012-11-14 | 2014-05-21 | 中国石油天然气股份有限公司 | Fiber Bragg grating type rainfall monitoring method and device |
| CN110879053A (en) * | 2019-12-20 | 2020-03-13 | 湖北楚航电子科技有限公司 | Multi-sensor integrated automatic slope deformation monitoring device |
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN113311460A (en) * | 2021-07-28 | 2021-08-27 | 湖南联智科技股份有限公司 | Beidou-based early warning method and system |
| US20230046111A1 (en) * | 2021-08-16 | 2023-02-16 | Amrita Vishwa Vidyapeetham | Multilevel Rapid Warning System for Landslide Detection |
| CN219626119U (en) * | 2023-02-28 | 2023-09-01 | 中国铁建投资集团有限公司 | Highway side slope monitoring and early warning system |
-
2023
- 2023-11-10 CN CN202311492231.4A patent/CN117233811B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080093715A (en) * | 2007-04-18 | 2008-10-22 | (주)바이텍코리아 | Steeped slope breakdown sensing system and sensing method |
| CN103809223A (en) * | 2012-11-14 | 2014-05-21 | 中国石油天然气股份有限公司 | Fiber Bragg grating type rainfall monitoring method and device |
| CN110879053A (en) * | 2019-12-20 | 2020-03-13 | 湖北楚航电子科技有限公司 | Multi-sensor integrated automatic slope deformation monitoring device |
| CN111947605A (en) * | 2020-08-20 | 2020-11-17 | 上海同禾工程科技股份有限公司 | Slope safety monitoring system and monitoring method thereof |
| CN113311460A (en) * | 2021-07-28 | 2021-08-27 | 湖南联智科技股份有限公司 | Beidou-based early warning method and system |
| US20230046111A1 (en) * | 2021-08-16 | 2023-02-16 | Amrita Vishwa Vidyapeetham | Multilevel Rapid Warning System for Landslide Detection |
| CN219626119U (en) * | 2023-02-28 | 2023-09-01 | 中国铁建投资集团有限公司 | Highway side slope monitoring and early warning system |
Non-Patent Citations (1)
| Title |
|---|
| 何朝阳等: "滑坡实时监测预警模型调度算法优化研究", 《武汉大学学报.信息科学版》, vol. 46, no. 7, pages 970 - 982 * |
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