CN206573719U - A kind of GNSS three-D displacements monitoring and correction system - Google Patents
A kind of GNSS three-D displacements monitoring and correction system Download PDFInfo
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- CN206573719U CN206573719U CN201621116775.6U CN201621116775U CN206573719U CN 206573719 U CN206573719 U CN 206573719U CN 201621116775 U CN201621116775 U CN 201621116775U CN 206573719 U CN206573719 U CN 206573719U
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Abstract
A kind of GNSS three-D displacements monitoring and correction system are disclosed, and its error is small, eliminates displacement distortion, it is ensured that calculation accuracy, it is ensured that monitoring result is correct.It includes monitoring station environment division and base station equipment part；Monitoring station environment division includes：Monitoring station GNSS antenna, monitoring station GNSS boards, monitoring station central logic unit, monitoring station region wireless module, monitoring station wide-area wireless module, monitoring station difference solving unit, monitoring station power management module, monitoring station battery；The monitoring station environment division is installed on the top of a column, double-axis tilt sensor has been internally integrated in central logic unit, double-axis tilt sensor configures to measure angle of inclination, three-dimensional coordinate is corrected, the displacement distortion that the top of the column is produced is eliminated by the displacement of angle of inclination, stem height, actual measurement.
Description
Technical field
The utility model belongs to the technical field of safety monitoring, monitors and corrects more particularly to a kind of GNSS three-D displacements
System.
Background technology
Prevent and reduce natural disasters field, be in very for the surface displacement variation monitoring of Potential hazards body in engineering and geological disaster
How consequence, obtain the displacement information of measured point and how to realize that quick, effective early warning is current in real time
Great difficult problem urgently to be resolved hurrily.
Being presently used for automating the equipment of ground displacement mainly has：Stay-supported ground displacement instrument, laser type
Table displacement monitor, time domain reflectometry, GPS monitoring systems etc..Bracing wire or laser type ground displacement instrument belong to relative displacement
Monitoring method, in real time measurement distance between two points change has the advantages that precision is high, is protected from weather influences, low-power consumption, but can only measure
Change in displacement in one-dimensional square；Time domain reflectometry falls within one-dimensional measurement, it is measurable go out along any point deformation, it is this
Excessively complexity is realized on method and technology, technological layer is not still very ripe, it should seldom；GNSS based on satellite fix
(Global Navigation Satellite System, GLONASS) is develop rapidly in recent years new
Technology, more and more starts application in geology, engineering field.
But, the deformation of geological disaster earth's surface is a complicated process, is generally accompanied by the inclination and distortion of earth's surface, causes mesh
Preceding GNSS three-D displacement monitoring system errors are larger, cause measured displacement amount distortion very big, so as to influence calculation result, even
Monitoring result mistake can be caused.
The content of the invention
Technology of the present utility model solves problem：The deficiencies in the prior art are overcome to be supervised there is provided a kind of GNSS three-D displacements
Survey and correction system, its error is small, eliminates displacement distortion, it is ensured that calculation accuracy, it is ensured that monitoring result is correct.
Technical solution of the present utility model is：This GNSS three-D displacements monitoring and correction system, it includes monitoring
Station equipment part and base station equipment part；
Monitoring station environment division includes：Monitoring station GNSS antenna, monitoring station GNSS boards, monitoring station central logic unit,
Monitoring station region wireless module, monitoring station wide-area wireless module, monitoring station difference solving unit, monitoring station power management module,
Monitor station battery；Monitoring station GNSS antenna receives real-time satellite signal, and satellite-signal is resolved to ephemeris by monitoring station GNSS boards
Data；Monitoring station central logic unit receives the original almanac data from monitoring station GNSS boards；Monitoring station central logic list
The correction data that the base station that member reading monitoring station CAN module is received is sent；Monitoring station central logic unit is by monitoring station
The correction data that the original almanac data of GNSS boards and base station are sent transfer to monitoring station difference solving unit；Monitoring station is poor
Solving unit is divided to complete the difference calculating coordinate of monitoring station；Monitoring station central logic unit reads monitoring station difference solving unit
Calculation result, teledata is carried out by monitoring station network module is forwarded to after calculation result and this monitoring station identification information packing
Send；
The monitoring station environment division is installed on the top of a column, and being internally integrated twin shaft in central logic unit inclines
Oblique sensor, double-axis tilt sensor configuration measures angle of inclination, corrects three-dimensional coordinate, by angle of inclination, stem height,
The displacement of actual measurement come eliminate the column top produce displacement distortion.
The utility model measures angle of inclination by double-axis tilt sensor, passes through angle of inclination, stem height, actual measurement
Displacement eliminate the displacement distortion that the top of the column is produced, the displacement caused by ground is tilted at the top of vertical rod leads to
Cross what angle of inclination was modified, so the three-D displacement amount of real ground can be measured, therefore error is small, eliminates displacement
Distortion, it is ensured that calculation accuracy, it is ensured that monitoring result is correct.
Brief description of the drawings
Fig. 1 shows the structural representation that system is monitored and corrected according to GNSS three-D displacements of the present utility model.
Fig. 2 shows the structural representation according to monitoring station environment division of the present utility model.
Embodiment
As shown in Figure 1, 2, this GNSS three-D displacements monitoring and correction system, it includes monitoring station environment division and base station
Environment division；
Monitoring station environment division includes：Monitoring station GNSS antenna, monitoring station GNSS boards, monitoring station central logic unit,
Monitoring station region wireless module, monitoring station wide-area wireless module, monitoring station difference solving unit, monitoring station power management module,
Monitor station battery；Monitoring station GNSS antenna receives real-time satellite signal, and satellite-signal is resolved to ephemeris by monitoring station GNSS boards
Data；Monitoring station central logic unit receives the original almanac data from monitoring station GNSS boards；Monitoring station central logic list
The correction data that the base station that member reading monitoring station CAN module is received is sent；Monitoring station central logic unit is by monitoring station
The correction data that the original almanac data of GNSS boards and base station are sent transfer to monitoring station difference solving unit；Monitoring station is poor
Solving unit is divided to complete the difference calculating coordinate of monitoring station；Monitoring station central logic unit reads monitoring station difference solving unit
Calculation result, teledata is carried out by monitoring station network module is forwarded to after calculation result and this monitoring station identification information packing
Send；
The monitoring station environment division is installed on the top of a column, and being internally integrated twin shaft in central logic unit inclines
Oblique sensor, double-axis tilt sensor configuration measures angle of inclination, corrects three-dimensional coordinate, by angle of inclination, stem height,
The displacement of actual measurement come eliminate the column top produce displacement distortion.
The part name of the label of each in Fig. 2 is as follows：
Column 1, GPS measuring instruments 2, screw 3, take shelter from the thunder needle assemblies 4, antenna mounting seat 5, electric cabinet 6, solar panel 7, water
Mud platform 8.
The utility model measures angle of inclination by double-axis tilt sensor, passes through angle of inclination, stem height, actual measurement
Displacement eliminate the displacement distortion that the top of the column is produced, the displacement caused by ground is tilted at the top of vertical rod leads to
Cross what angle of inclination was modified, so the three-D displacement amount of real ground can be measured, therefore error is small, eliminates displacement
Distortion, it is ensured that calculation accuracy, it is ensured that monitoring result is correct.
In addition, the base station equipment part includes：Base station GNSS antenna, base station GNSS boards, base station central logic unit,
Base station area wireless module, base station power management module, base station battery；Base station GNSS antenna receives real-time satellite signal, base station
Satellite-signal is resolved to almanac data by GNSS boards；Base station central logic unit receives the original star from base station GNSS boards
Count evidence one by one, control base station difference solving unit completes real-time correction number and calculated；What base station central logic unit reading was calculated changes
Positive number control base station CAN module carries out regional broadcast transmission.
The utility model completes the switching of each functional module of device interior under the control of central logic unit, using scene
Resolve, the wide-area wireless module for making power consumption larger only sends low volume data, be in power-off shutdown state in the most of the time, therefore
Suitable for permanent unattended field condition monitoring, power consumption is smaller；By by monitoring station GNSS antenna, monitoring station GNSS plates
Card, monitoring station central logic unit, monitoring station region wireless module, monitoring station wide-area wireless module, monitoring station difference resolve single
Member, monitoring station power management module, monitoring station battery are put together, by base station GNSS antenna, base station GNSS boards, base station center
Logic unit, base station area wireless module, base station difference solving unit, base station power management module, base station battery are put together,
Realize that integral type is integrated；Can by monitoring station region wireless module, monitoring station wide-area wireless module, base station area wireless module
It is wirelessly transferred；It can realize that high accuracy scene is resolved by monitoring station difference solving unit.
Moreover, using the mode of operation of start by set date, making equipment be in off-position in the most of the time.Difference, which is resolved, closes
Key is a little to ensure that base station works simultaneously with monitoring station, and the time of start by set date will be unified and accurate, in the utility model,
Central logic unit part adds the real-time clock module with interrupt function, and essence is carried out to equipment clock using satellite time
Really check and correction, makes every independent monitoring device have the internal clocking of absolute synchronization, according to scheduled time parameter setting clock mould
The break period point of block, is triggered the power switch of central logic unit by tick interrupt when the time reaches, then by central logic
The other functional modules of unit starting, realize the function of unattended, accurate start by set date for a long time, save power consumption.
Whole equipment works under central logic unit control.Mode of operation is divided into real-time online and timing is reached the standard grade, and is used for
The mode of operation reached the standard grade during permanent field displacement monitoring usually using timing.
High-precision coordinate is completed to resolve, it is necessary to which using static real time differential algorithm, detailed process is to pacify an equipment
At known coordinate point, observation coordinate is calculated by receiving satellite data, observation coordinate and known coordinate have deviation, this
Individual deviation is referred to as position error, and the real-time position error in one's respective area is sent to the monitoring device at monitoring point for displacement by base station,
The satellite position error that equipment at monitoring point is arrived according to real-time position error and real-time reception carries out error concealment resolving, obtains
High-precision coordinate data, this calculating coordinate method is referred to as difference algorithm.Conventional way is：Base station and monitoring station difference
By original satellite data by wireless network remote transmission to data center, data center carries out difference resolving, because satellite is former
The data volume of beginning packet is big, this method require monitoring device to data center have the very-long-ranges of good and enough bandwidth without
The support of gauze network.
From the point of view of current actual conditions, the infield (landslide, mud-rock flow or other engineering sites) of equipment is generally up to
Less than above-mentioned network requirement, at present, it is possible to use very-long-range wireless network in, China's generation network G SM coverages are most wide,
But generation network mainly realizes call and short message, the ability for not possessing transmission high amount of traffic, two generation GPRS networks covering is close
Generation network, actual transmission bandwidth can substantially meet demand, but in remote districts and mountain area, signal quality also is difficult to real-time guarantor
Barrier, 3G and 4G networks exist only at present medium-and-large-sized city and densely populated place area, most of geological disaster point do not have 3G or
4G networks.When happening suddenly major natural disasters, above-mentioned wireless network may be interrupted, and Monitoring Data is not transmitted, therefore this practicality
Be also integrated with the Big Dipper packet network module based on direct satellite communication inside new monitoring device, Big Dipper message independent of
Ground signal base station, communication apparatus is directly passed through with big-dipper satellite and communicated, and data forwarding is completed via satellite, completes the point of data
To a remote transmission, Big Dipper message bandwidth very little, similar to generation cell phone network GSM, can carry out small data packets transmission.
The utility model is in data calculation processing and has being bold in innovation using aspect for network, and data volume is passed
Defeated huge difference solution process is completed in monitoring field, and base is carried out by the integrated compartmentalization radio frequency network of every device interior
Stand-the big data of monitoring station interaction, every monitoring device resolves modular unit via internal difference and carries out itself sits in high precision
Mark is resolved, and the result calculated is simple point position identification information and D coordinates value, and this simple packet, which can be used, to be set
Standby any one wireless network carried carries out remote transmission (GSM, GPRS, Big Dipper message).It greatly simplify data remote
Data volume and server real-time multiple spot solution operator workload, add stabilization of equipment performance and the transmitting of data, also make base
Extended to greatest extent in the application of GNSS three-D displacement monitoring device.Control of the equipment in central logic controller
Packet transmission is carried out with the optimal network in scene under system, priority is：GPRS, GSM, Big Dipper message, GPRS has to pass through the most
Ji realizes advantage, can consume extremely low campus network and realize the process that is sent directly to data in the reception server, GSM and
Big Dipper message then needs the support of the receiving module hardware device of receiving terminal, it is necessary to increase receiving terminal hardware costs.When need hair
When sending one group of data, the existing network of central logic control unit detection and signal quality select most reliable network to carry out data
Send.
GNSS antenna can receive the positioning of three satellite systems (GPS of America, the Chinese Big Dipper, Russian Glonass) simultaneously
And clock signal (data), antenna is connected with board, and GNSS boards are responsible for satellite-signal being converted to original location data output.
Necessity that satellite-based global positioning system is calculated using synchronization to the real-time range no less than three satellites as coordinate
Data, then calculation accuracy is higher for the data more (satellite number is more) that synchronization is received, therefore the satellite fix system of three systems
The more conventional single system alignment system of system has higher accuracy of observation.
In addition, being internally integrated electronic compass chip in central logic unit, it, which is configured, carrys out the real-time level monitoring anglec of rotation
The change of degree.
In addition, the monitoring station environment division is also connected with the acousto-optic prewarning unit of big power consumption.
In addition, the monitoring station battery, base station battery put using internal battery and outside solar panels.Geology, engineering
The important feature of the permanent automatic monitoring in field is the supply of electric power inconvenience at scene, and this monitoring device is using internal battery+outer
The power supply plan of portion's solar energy.Power management module can carry out the battery of different charging stages according to different battery features and charge
Management, extends battery life, improves charge efficiency to greatest extent.
In addition, the monitoring station environment division is reserved with digital extended interface RS485 and module amount interface (electric current, voltage
Each 1 tunnel), gather a variety of additional connection sensors simultaneously carrying out the monitoring of GNSS three-D displacements, complete expansible comprehensive of monitoring variable
Close monitoring function.
In addition, the monitoring station GNSS antenna, base station GNSS antenna are while receiving GPS of America, the Chinese Big Dipper, Russia sieve
The positioning of three satellite systems of this GLONASS and the antenna of clock signal.
In addition, the monitoring station environment division also includes acousto-optic prewarning unit, it is connected with monitoring station central logic unit；
Data are locally stored while remote data transmission is carried out for monitoring station, and are retrieved historical data and contrasted, when up to
To user preset maximum displacement or maximum displacement speed when, under the control of monitoring station central logic unit open acousto-optic it is pre-
Alert unit, realizes live early warning audio broadcasting and the live early warning of early warning light flash action.The first purpose of safety monitoring is
Warning information issue is carried out during burst deformation, personnel and property loss is reduced.The monitoring device for being currently based on GNSS does not possess
Live directly warning function, is all employed by data center is sent out come Treatment Analysis Monitoring Data, then from data center to scene
The annular information transfer mode of cloth, information link is excessive, effective poor.The integrated acousto-optic early warning of the utility model device interior is driven
Dynamic circuit and warning algorithm, are retaining original alarm mode (approach) while realizing alarm mode-scene the most direct in advance
It is alert.
In addition, monitoring station region wireless module, base station area wireless module are radio frequency 433MHz modules, the prison
Survey station wide-area wireless module, monitoring station wide-area wireless module be with GSM, GPRS, Big Dipper message function wireless module.
In addition, the monitoring station environment division includes monitoring station interface, the base station equipment part includes base-station interface.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal limit to the utility model
System, every any simple modification, equivalent variations and modification made according to technical spirit of the present utility model to above example,
Still belong to the protection domain of technical solutions of the utility model.
Claims (8)
1. a kind of GNSS three-D displacements monitoring and correction system, it is characterised in that：It includes monitoring station environment division and base station is set
Standby part；
Monitoring station environment division includes：Monitoring station GNSS antenna, monitoring station GNSS boards, monitoring station central logic unit, monitoring
Stand region wireless module, monitoring station wide-area wireless module, monitoring station difference solving unit, monitoring station power management module, monitoring
Station battery；Monitoring station GNSS antenna receives real-time satellite signal, and satellite-signal is resolved to almanac data by monitoring station GNSS boards；
Monitoring station central logic unit receives the original almanac data from monitoring station GNSS boards；Monitoring station central logic unit is read
The correction data that the base station that monitoring station CAN module is received is sent；Monitoring station central logic unit is by monitoring station GNSS plates
The correction data that the original almanac data and base station of card are sent transfer to monitoring station difference solving unit；Monitoring station difference is resolved
Unit completes the difference calculating coordinate of monitoring station；Monitoring station central logic unit reads the resolving knot of monitoring station difference solving unit
Really, monitoring station network module will be forwarded to after calculation result and this monitoring station identification information packing and carries out teledata transmission；
The monitoring station environment division is installed on the top of a column, and bi-axial tilt biography has been internally integrated in central logic unit
Sensor, double-axis tilt sensor configures to measure angle of inclination, corrects three-dimensional coordinate, passes through angle of inclination, stem height, actual measurement
Displacement come eliminate the column top produce displacement distortion.
2. GNSS three-D displacements monitoring according to claim 1 and correction system, it is characterised in that：The base station equipment portion
Dividing includes：Base station GNSS antenna, base station GNSS boards, base station central logic unit, base station area wireless module, base station power pipe
Manage module, base station battery；Base station GNSS antenna receives real-time satellite signal, and satellite-signal is resolved to ephemeris by base station GNSS boards
Data；Base station central logic unit receives the original almanac data from base station GNSS boards, control base station difference solving unit
Real-time correction number is completed to calculate；Base station central logic unit reads the correction control base station CAN module calculated and carries out area
Domain broadcast transmission.
3. GNSS three-D displacements monitoring according to claim 2 and correction system, it is characterised in that：In central logic unit
Electronic compass chip is internally integrated, it configures the change for carrying out the real-time level monitoring anglec of rotation.
4. GNSS three-D displacements monitoring according to claim 1 and correction system, it is characterised in that：The monitoring station equipment
Part is also connected with the acousto-optic prewarning unit of big power consumption.
5. GNSS three-D displacements monitoring according to claim 1 and correction system, it is characterised in that：The monitoring station equipment
Part is reserved with digital extended interface RS485 and module amount interface, gathers a variety of attached simultaneously carrying out the monitoring of GNSS three-D displacements
Plus connection sensor.
6. GNSS three-D displacements monitoring according to claim 1 and correction system, it is characterised in that：The monitoring station electricity
Pond, base station battery put using internal battery and outside solar panels.
7. GNSS three-D displacements monitoring according to claim 1 and correction system, it is characterised in that：The monitoring station GNSS
Antenna, base station GNSS antenna are to determine while receiving GPS of America, the Chinese Big Dipper, three satellite systems of Russian Glonass
Position and the antenna of clock signal.
8. GNSS three-D displacements monitoring according to claim 7 and correction system, it is characterised in that：The monitoring station region
Wireless module, base station area wireless module are radio frequency 433MHz modules, the monitoring station wide-area wireless module, monitoring station wide area
Wireless module be with GSM, GPRS, Big Dipper message function wireless module.
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| CN201621116775.6U CN206573719U (en) | 2016-10-13 | 2016-10-13 | A kind of GNSS three-D displacements monitoring and correction system |
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| CN201621116775.6U CN206573719U (en) | 2016-10-13 | 2016-10-13 | A kind of GNSS three-D displacements monitoring and correction system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297254A (en) * | 2016-10-18 | 2017-01-04 | 重庆地质矿产研究院 | GNSS multidimensional displacement monitoring system and remote data processing method thereof |
| CN108614280A (en) * | 2018-05-10 | 2018-10-02 | 夏小林 | A kind of dykes and dams offset monitoring and early warning equipment |
| CN108614233A (en) * | 2018-05-09 | 2018-10-02 | 中建三局基础设施建设投资有限公司 | A kind of open air digital high precision GNSS transceiver devices |
| CN113108700A (en) * | 2021-04-28 | 2021-07-13 | 上海同禾工程科技股份有限公司 | Displacement checking system and displacement checking method based on machine vision |
-
2016
- 2016-10-13 CN CN201621116775.6U patent/CN206573719U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297254A (en) * | 2016-10-18 | 2017-01-04 | 重庆地质矿产研究院 | GNSS multidimensional displacement monitoring system and remote data processing method thereof |
| CN108614233A (en) * | 2018-05-09 | 2018-10-02 | 中建三局基础设施建设投资有限公司 | A kind of open air digital high precision GNSS transceiver devices |
| CN108614280A (en) * | 2018-05-10 | 2018-10-02 | 夏小林 | A kind of dykes and dams offset monitoring and early warning equipment |
| CN113108700A (en) * | 2021-04-28 | 2021-07-13 | 上海同禾工程科技股份有限公司 | Displacement checking system and displacement checking method based on machine vision |
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Address after: Building D33, Science and Technology Research and Development Center, Hebei Yanjiao Military civilian Integration Technology Incubation Center Phase I, No. 515, Fucheng Road, Yanjiao High tech Zone, Sanhe, Langfang, Hebei 065201 Patentee after: Hebei Stability Control Technology Co.,Ltd. Address before: 065201 room a1202, Chuangye building, northeast corner of Shenwei Huandao, east of Yingbin Road North Road, Yanjiao Development Zone, Langfang City, Hebei Province Patentee before: HEBEI STABILITY CONTROL TECHNOLOGY Co.,Ltd. |