CN102435165B - CNSS (COMPASS navigation satellite system)-based long-term ground facility deformation monitoring method - Google Patents

CNSS (COMPASS navigation satellite system)-based long-term ground facility deformation monitoring method Download PDF

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CN102435165B
CN102435165B CN 201110263756 CN201110263756A CN102435165B CN 102435165 B CN102435165 B CN 102435165B CN 201110263756 CN201110263756 CN 201110263756 CN 201110263756 A CN201110263756 A CN 201110263756A CN 102435165 B CN102435165 B CN 102435165B
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point
monitoring
cnss
processing module
data processing
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CN102435165A (en
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杨绍普
陈恩利
刘永强
廖英英
马增强
潘存治
郭树起
徐步青
王扬
司春棣
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Shijiazhuang Tiedao University
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Shijiazhuang Tiedao University
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Abstract

The invention discloses a monitoring system and a monitoring method for surface deformation, and particularly relates to a CNSS (COMPASS navigation satellite system)-based long-term ground facility deformation monitoring system and a CNSS-based long-term ground facility deformation monitoring method. The monitoring system comprises a positioning and monitoring module, a CNSS, a data processing module and a client terminal. The specific steps of the monitoring method are as follows: (1) the CNSS-based long-term ground facility deformation monitoring system is constructed; (2) positioning information is received by monitoring points and a datum point; (3) the positioning information is processed by the data processing module; (4) the data processing module generates and sends an early warning signal and predictive information to the client terminal. Wide-range, long-time, all-weather, uninterrupted and real-time monitoring on the deformation of ground facilities can be realized, and the monitoring precision is improved; and the method cannot be affected or limited by distance, weather conditions or geographic environments, additional manual intervention and transmission equipment are not needed, the cost is greatly reduced, and the monitoring system is convenient to maintain and popularize.

Description

Long term monitoring methods based on the distortion of the surface facility of CNSS
Technical field
The present invention relates to a kind of monitoring system and method that is used for surface deformable, especially based on the long term monitoring system and method for the surface facility of CNSS distortion.
Background technology
The present domestic overwhelming majority all is based on traditional non-digital equipment (as transit to the deformation monitoring of the situations such as settlement of foundation, displacement and integral inclination of surface facilitys such as dam, mine, oil field, bridge, highway and high ferro roadbed, total powerstation) carries out periodicity duplicate measurements technology, generally require special messenger's sole duty, need more human resources, the data processing difficulty is big, there is the untimely problem of monitoring, especially under the strong wind and heavy rain weather conditions that need carry out deformation monitoring strongly, can't carry out the work, cause the serious monitoring emptying phase.
Domestic and international having) the deformation monitoring supervisory system solution and the application case of technology based on the GPS(GPS, but because of GPS is the satellite navigation system of being controlled by U.S. Department of Defense, its time service precision and reliability are limited by the GPS of USA policy, so its time service and bearing accuracy have potential unsafe factor.
The Beidou satellite navigation and positioning system of China is the regional active three-dimensional satnav and the communication system of Chinese independent development exploitation, is continue GPS of USA, Muscovite GLONASS(GPS (Global Position System)) after the 3rd satellite navigation system of maturation.This system works can provide round-the-clock, high precision, zonal instant positioning service to the user on the frequency of 2491.75MHz, bearing accuracy can reach tens of nanoseconds, and its precision and GPS are suitable.In addition, when adopting the GPS location technology to monitor, Monitoring Data need be stored in the special movable memory equipment, maybe need to adopt extra wireless telecommunications system to transmit, the monitoring cost increases greatly.And the Big Dipper Navsat of China's independent research has accurate location and bidirectional communication function, after the ground monitoring point receives locator data, by resolving the displacement deformation data solver that software carries out millimeter class precision, can give satellite as the Content of communciation backpropagation with the result, give the user data processing enter of appointment again by satellite transmits.Therefore, be not subjected to the influence of transmission range and weather conditions, manual intervention that need not be extra and transmission equipment can be realized long-term, long distance, all-weather real-time status monitoring.
Summary of the invention
The technical problem to be solved in the present invention be a kind of can be round-the-clock, on a large scale to surface facility carry out displacement carry out long term monitoring with distortion and can improve monitoring precision, reliability and security based on the CNSS(Beidou satellite navigation system) the long term monitoring system and method for surface facility distortion.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of long term monitoring system that is out of shape based on the surface facility of CNSS comprises position monitor module, CNSS, data processing module and client terminal; Described position monitor module comprise the CNSS terminating machine of being located at each reference point respectively and with the CNSS terminating machine of each corresponding each monitoring point of reference point; Described data processing module comprises CNSS terminating machine and data processor; Described client terminal comprises CNSS terminating machine and display device; Described CNSS and the CNSS terminating machine of described reference point and two-way connection of CNSS terminating machine of monitoring point, and with described data processing module and client terminal unidirectional connection respectively; The CNSS terminating machine of each reference point and the CNSS terminating machine of each monitoring point are connected with the data processor of described data processing module is unidirectional.
A kind of long term monitoring methods based on the distortion of the surface facility of CNSS that utilizes above-mentioned monitoring system may further comprise the steps:
A, set up long term monitoring system based on the surface facility distortion of CNSS;
B, described monitoring point and reference point receive locating information:
The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point obtain the locating information of position from CNSS, and described locating information comprises the three-dimensional coordinate data of described reference point and monitoring point; The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point send to described data processing module with locating information separately;
C, described data processing module are handled the locating information of monitoring point and reference point:
The accurate coordinates value that has each reference point in the described data processing module in advance; Described data processing module is stored after receiving locating information from each reference point and each monitoring point, by the cycle three-dimensional coordinate data time series that each reference point and each monitoring point three-dimensional coordinate data separately form is handled, and treatment step is as follows:
(1) forms the suitable known accurate coordinates value time series of three-dimensional coordinate data time series of reference point therewith with the known accurate coordinates value of each reference point, three-dimensional coordinate data time series accurate coordinates value known with it time series of each reference point is made the differential time sequence that difference obtains this reference point, and obtain the rate of change of this differential time sequence;
(2) use with the three-dimensional coordinate data time series of corresponding each monitoring point of described reference point therewith the differential time sequence of reference point do poor, three-dimensional coordinate data time series to each monitoring point is carried out error correction, obtains the correction three-dimensional coordinate data time series of each monitoring point;
(3) the differential time sequence of described each reference point and the correction three-dimensional coordinate data time series of rate of change and each monitoring point thereof are carried out filtering and noise reduction;
(4) to the correction three-dimensional coordinate data time series of filtered monitoring point and therewith the differential time sequence and the rate of change thereof of the corresponding reference point in monitoring point handle, calculate the deflection of described monitoring point with respect to reference point corresponding with it;
D, described data processing module produce early warning signal and send:
The three-dimensional coordinate data time series of each reference point and the correction three-dimensional coordinate data time series of each monitoring point are stored in the described data processing module as Monitoring Data, and send to big-dipper satellite by the CNSS terminating machine of described data processing module; The default secure threshold that has the rate of change of going up deflection described in the step and described reference point differential time sequence in the described data processing module in advance; When the rate of change of described deflection and difference is in default secure threshold scope, carry out the following E step; Otherwise described data processing module produces early warning signal and the CNSS terminating machine of this early warning signal by described data processing module is sent to big-dipper satellite; The CNSS terminating machine that described big-dipper satellite will be sent to client terminal from the Monitoring Data and the early warning signal of data processing module also shows by display device, carries out the following E step;
E, described data processing module produce information of forecasting and send:
Described data processing module goes out the displacement deformation tendency information of each monitoring point with respect to this reference point according to the correction three-dimensional coordinate data time series forecasting of the three-dimensional coordinate data time series of each reference point of its storage inside and each monitoring point corresponding with it, and the CNSS terminating machine of this information by data processing module sent to big-dipper satellite, big-dipper satellite is sent to this information the CNSS terminating machine of described client terminal again and shows by display device.
The quantity of described reference point is 2-3, with the quantity of each corresponding monitoring point of reference point be more than 1.
The model of the CNSS terminating machine of the CNSS terminating machine of described reference point or monitoring point, described data processing module and the CNSS terminating machine of described client terminal is HMWJ/BD4.
Adopt modes such as radio communication, cable communication to transmit data between described reference point and monitoring point and the data processing module.
The technical progress of adopting technique scheme to obtain is:
The mode of operation of monitoring system of the present invention is continuous, not only can carry out timing acquiring to the deflection of monitoring target, but also can carry out on a large scale the various distortion of monitoring target, long-time, round-the-clock continual real-time monitoring, can understand the distortion of monitoring target convenient, efficiently, make the monitoring personnel can in time analyze the various distortion of monitoring target, be convenient in time grasp the ANOMALOUS VARIATIONS of monitoring target; And this system is not subjected to the influence and the restriction of distance, weather conditions and geographical environment, and need not extra manual intervention and transmission equipment, and cost reduces greatly, is convenient to safeguard and promote.
The data that monitoring method of the present invention can obtain monitoring system are in real time handled, and have improved the monitoring accuracy to the monitoring target distortion, and have introduced early warning signal; This method can also predict ANOMALOUS VARIATIONS such as the deformation tendency of monitoring target and deformation velocitys, makes the monitoring personnel to make prediction in advance and handle ANOMALOUS VARIATIONS, and provides foundation for later optimal design.
In observation process, can adjust the position and the quantity of reference point and monitoring point according to actual conditions, also can carry out areal survey, measurement effect and precision are unaffected.
The Beidou satellite navigation system that monitoring system of the present invention utilizes China to develop voluntarily makes information transmission safer, also helps the safe and secret of national information, has effectively broken away from the restriction of foreign technology; And monitoring method of the present invention is to the monitoring accuracy height of monitoring target, and the space of secondary development is big, has stronger extendability, and the scope of application is wide.
Description of drawings
Fig. 1 is that structure of the present invention is formed synoptic diagram.
Embodiment
By as can be known shown in Figure 1: the long term monitoring system based on the distortion of the surface facility of CNSS comprises position monitor module, CNSS(Beidou satellite navigation system), data processing module and client terminal; Described position monitor module comprise the CNSS terminating machine of being located at each reference point respectively and with the CNSS terminating machine of each corresponding each monitoring point of reference point; Described data processing module comprises CNSS terminating machine and data processor; Described client terminal comprises CNSS terminating machine and display device; Described CNSS and the CNSS terminating machine of described reference point and two-way connection of CNSS terminating machine of monitoring point, and with described data processing module and client terminal unidirectional connection respectively; The CNSS terminating machine of each reference point and the CNSS terminating machine of each monitoring point are connected with the data processor of described data processing module is unidirectional.
Utilize the monitoring method of above-mentioned monitoring system, may further comprise the steps:
A, set up long term monitoring system based on the surface facility distortion of CNSS:
The reference point of described monitoring system is laid in the highly stable area of geologic condition at surface facility (being main monitoring objective) place, near do not have serious surface collapse and influence other stable factors of reference point, described monitoring point is arranged on the surface facility or near the yielding zone, the layout density of monitoring point can be adjusted according to geologic condition, geographical situation and yielding degree appropriateness, reference point should be selected two or more and the zone nearer apart from monitoring objective, to guarantee monitoring good accuracy of observation is arranged.The quantity of described reference point is generally 2-3 (determine according to actual conditions, can also establish more a plurality of), with the quantity of each corresponding monitoring point of reference point be more than 1.
B, described monitoring point and reference point receive locating information:
The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point obtain the locating information of loca from CNSS, and described locating information comprises the three-dimensional coordinate data of described reference point and monitoring point; The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point send to locating information separately the processor of described data processing module; Described monitoring point and reference point receive after the big-dipper satellite locating information regularly to data handling system transmission data, such as one second transmission primaries.When the distance of each reference point and each monitoring point range data processing module is very near, can be connected serial ports connected mode commonly used between the CNSS terminating machine of described each reference point and the CNSS terminating machine of each monitoring point and the data processing module by serial line interface, parallel interface, USB interface and some other PORT COM with described processor.When the distance of each reference point and each monitoring point range data processing module is not suitable for adopting short distance wired connection mode, can adopt modes such as radio communication, cable communication to transmit data between described reference point and monitoring point and the data processing module.
C, described data processing module are handled the locating information of monitoring point and reference point:
The accurate coordinates value that has each reference point in the described data processing module in advance, known accurate coordinates value utilize instruments such as existing exact instrument such as electronic level manually to measure; Described data processing module is stored after receiving locating information from each reference point and each monitoring point, by the cycle three-dimensional coordinate data time series of each reference point and the three-dimensional coordinate data formation separately of each monitoring point is handled, cycle can not waited for 2 hours or 3 hours, determine that according to actual conditions concrete treatment step is as follows:
(1) forms the known accurate coordinates value time series of the suitable reference point of the three-dimensional coordinate data time series of reference point therewith with the known accurate coordinates value of each reference point, three-dimensional coordinate data time series accurate coordinates value known with it time series of each reference point is made the differential time sequence that difference obtains this reference point, and obtain the rate of change of this differential time sequence; Because difference is a time series, so can calculate the variation tendency between each data element, i.e. rate of change in the time series;
(2) use with the three-dimensional coordinate data time series of corresponding each monitoring point of described reference point therewith the differential time sequence of reference point do poor, three-dimensional coordinate data time series to each monitoring point is carried out error correction, obtains the correction three-dimensional coordinate data time series of each monitoring point;
(3) utilize pattern decomposition method and wavelet technique (perhaps other algorithms) that the differential time sequence of described each reference point and the correction three-dimensional coordinate data time series of rate of change and each monitoring point thereof are carried out filtering and noise reduction;
(4) utilize the Coleshky decomposition method to the correction three-dimensional coordinate data time series of filtered monitoring point with the differential time sequence and the rate of change thereof of the corresponding reference point in monitoring point are handled therewith, set up the blur level search volume and resolve ambiguity of carrier phase, initial blur level information according to carrier phase observation data calculates the deflection of described monitoring point with respect to reference point corresponding with it.
The data processor of described data processing module is connected with the CNSS terminating machine is unidirectional, also can communicate by serial line interface, parallel interface, USB interface and some other PORT COM between the two, generally adopts the serial ports connected mode.Data processor receives the locating information from each reference point and each monitoring point, according to certain cycle, utilizes data processing software that data are handled; The model of data processor is different and different according to institute's monitoring target with configuration, but basic demand is as follows: Pentium 4 or more senior processor, dominant frequency 2GHz or more than, the 1G internal memory or more than, more than the 500G hard disk, the unix system of support X-Windows; That data processing software adopts is the data processing software GAMIT/GLOBK of specialty, can carry out secondary development.Data processor sends to the data of handling well the CNSS terminating machine of data processing module.
D, described data processing module produce early warning signal and send:
The three-dimensional coordinate data time series of each reference point and the correction three-dimensional coordinate data time series of each monitoring point are stored in the described data processing module as Monitoring Data, and send to big-dipper satellite by the CNSS terminating machine of described data processing module; The default secure threshold that has the rate of change of the differential time sequence that goes up deflection described in the step and described reference point in the described data processing module in advance; When the rate of change of described deflection and difference is in default secure threshold scope, carry out the following E step; Otherwise described data processing module produces early warning signal and the CNSS terminating machine of this early warning signal by described data processing module is sent to big-dipper satellite; The CNSS terminating machine that described big-dipper satellite will be sent to client terminal from the Monitoring Data and the early warning signal of data processing module also shows by display device, carries out the following E step.
E, described data processing module produce information of forecasting and send:
Described data processing module is according to the correction three-dimensional coordinate data time series of the three-dimensional coordinate data time series of each reference point of its storage inside and each monitoring point corresponding with it, with neural network algorithm (also can adopt other intelligent algorithms) prediction of distortion tendency information, dope the displacement deformation tendency information of each monitoring point with respect to this reference point, and the CNSS terminating machine of this information by data processing module sent to big-dipper satellite, big-dipper satellite is sent to this information the CNSS terminating machine of described client terminal again and shows by display device.
The CNSS terminating machine of described client terminal is connected with display device is unidirectional, also can communicate by serial line interface, parallel interface, USB interface and some other PORT COM between the two, generally adopts the serial ports connected mode.
Described client terminal receives through behind big-dipper satellite transmission, Monitoring Data, early warning signal and the information of forecasting from data processing module by the CNSS terminating machine, show three-dimensional coordinate, displacement and the distortion situation of each reference point and monitoring point in real time by display device, realize visualized management and data analysis monitoring target information.Can carry out unattended round-the-clock and high precision long term monitoring to the plan static displacement and the distortion of surface facility like this.
The model of the CNSS terminating machine of the CNSS terminating machine of described reference point or monitoring point, described data processing module and the CNSS terminating machine of described client terminal is HMWJ/BD4.Also can adopt the terminating machine of other models as required.
What this instructions provided is a kind of preferred institutional framework, in practical application, can adopt practical more structure according to actual conditions.If but meet the basic thought of this method, protection scope of the present invention all belonged to.

Claims (4)

1. long term monitoring methods based on the distortion of the surface facility of CNSS is characterized in that may further comprise the steps:
A, set up long term monitoring system based on the surface facility distortion of CNSS;
Described monitoring system comprises position monitor module, CNSS, data processing module and client terminal; Described position monitor module comprise the CNSS terminating machine of being located at each reference point respectively and with the CNSS terminating machine of each corresponding each monitoring point of reference point; Described data processing module comprises CNSS terminating machine and data processor; Described client terminal comprises CNSS terminating machine and display device; Described CNSS and the CNSS terminating machine of described reference point and two-way connection of CNSS terminating machine of monitoring point, and with described data processing module and client terminal unidirectional connection respectively; The CNSS terminating machine of each reference point and the CNSS terminating machine of each monitoring point are connected with the data processor of described data processing module is unidirectional;
B, described monitoring point and reference point receive locating information:
The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point obtain the locating information of position from CNSS, and described locating information comprises the three-dimensional coordinate data of described reference point and monitoring point; The CNSS terminating machine of described reference point and the CNSS terminating machine of monitoring point send to described data processing module with locating information separately;
C, described data processing module are handled the locating information of monitoring point and reference point:
The accurate coordinates value that has each reference point in the described data processing module in advance; Described data processing module is stored after receiving locating information from each reference point and each monitoring point, by the cycle three-dimensional coordinate data time series that each reference point and each monitoring point three-dimensional coordinate data separately form is handled, and treatment step is as follows:
(1) forms the suitable known accurate coordinates value time series of three-dimensional coordinate data time series of reference point therewith with the known accurate coordinates value of each reference point, the three-dimensional coordinate data time series of each reference point and the known accurate coordinates value time series of each reference point are made the differential time sequence that difference obtains this reference point, and obtain the rate of change of this differential time sequence;
(2) use with the three-dimensional coordinate data time series of corresponding each monitoring point of described reference point therewith the differential time sequence of reference point do poor, three-dimensional coordinate data time series to each monitoring point is carried out error correction, obtains the correction three-dimensional coordinate data time series of each monitoring point;
(3) the differential time sequence of described each reference point and the correction three-dimensional coordinate data time series of rate of change and each monitoring point thereof are carried out filtering and noise reduction;
(4) to the correction three-dimensional coordinate data time series of filtered monitoring point and therewith the differential time sequence and the rate of change thereof of the corresponding reference point in monitoring point handle, calculate described monitoring point with respect to the deflection of the corresponding reference point in monitoring point therewith;
D, described data processing module produce early warning signal and send:
The three-dimensional coordinate data time series of each reference point and the correction three-dimensional coordinate data time series of each monitoring point are stored in the described data processing module as Monitoring Data, and send to big-dipper satellite by the CNSS terminating machine of described data processing module; The default secure threshold that has the rate of change of going up deflection described in the step and described reference point differential time sequence in the described data processing module in advance; When the rate of change of described deflection and difference is in default secure threshold scope, carry out the following E step; Otherwise described data processing module produces early warning signal and the CNSS terminating machine of this early warning signal by described data processing module is sent to big-dipper satellite; The CNSS terminating machine that described big-dipper satellite will be sent to client terminal from the Monitoring Data and the early warning signal of data processing module also shows by display device, carries out the following E step;
E, described data processing module produce information of forecasting and send:
Described data processing module goes out the displacement deformation tendency information of each monitoring point with respect to this reference point according to the three-dimensional coordinate data time series of each reference point of its storage inside with the correction three-dimensional coordinate data time series forecasting of each corresponding each monitoring point of reference point, and the CNSS terminating machine of this information by data processing module sent to big-dipper satellite, big-dipper satellite is sent to this information the CNSS terminating machine of described client terminal again and shows by display device.
2. the long term monitoring methods of the surface facility distortion based on CNSS according to claim 1, the quantity that it is characterized in that described reference point is 2-3, with the quantity of each corresponding monitoring point of reference point be more than 1.
3. the long term monitoring methods of the surface facility distortion based on CNSS according to claim 1 is characterized in that the model of the CNSS terminating machine of the CNSS terminating machine of the CNSS terminating machine of described reference point or monitoring point, described data processing module and described client terminal is HMWJ/BD4.
4. the long term monitoring methods that is out of shape based on the surface facility of CNSS according to claim 1 is characterized in that adopting between described reference point and monitoring point and the data processing module radio communication or cable communication mode to transmit data.
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