CN105785409A - RTK positioning precision forecast method and system - Google Patents

RTK positioning precision forecast method and system Download PDF

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Publication number
CN105785409A
CN105785409A CN201510998676.9A CN201510998676A CN105785409A CN 105785409 A CN105785409 A CN 105785409A CN 201510998676 A CN201510998676 A CN 201510998676A CN 105785409 A CN105785409 A CN 105785409A
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rtk
information
time
accuracy
real
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CN105785409B (en
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谢锡贤
方春水
罗泽彬
郭灿桦
廖少翔
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GUANGZHOU CITY ZHONGHAIDA SURVEYING INSTRUMENT CO Ltd
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GUANGZHOU CITY ZHONGHAIDA SURVEYING INSTRUMENT CO Ltd
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Priority to CN201510998676.9A priority Critical patent/CN105785409B/en
Priority to PCT/CN2016/085534 priority patent/WO2017107402A1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
    • G01S19/11—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/40—Correcting position, velocity or attitude
    • G01S19/41—Differential correction, e.g. DGPS [differential GPS]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

一种RTK定位精度的预报方法及系统，获取电离层TEC预报信息；获取根据RTK定位精度信息及电离层TEC信息建立的RTK精度模型；所述RTK定位精度信息包括：时间、基线及RTK定位精度；所述电离层TEC信息包括：所述时间、所述基线及电离层TEC；根据所述电离层TEC预报信息及所述RTK精度模型，确定RTK预报精度。通过上述RTK定位精度的预报方法及系统，用户可以根据电离层TEC预报信息对RTK定位精度进行预测，得到预测结果，即待报时间的RTK预报精度，从而可根据预测结果作进一步处理。

A method and system for forecasting RTK positioning accuracy, obtaining ionospheric TEC forecast information; obtaining an RTK accuracy model established according to RTK positioning accuracy information and ionospheric TEC information; the RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy The ionospheric TEC information includes: the time, the baseline and the ionospheric TEC; according to the ionospheric TEC forecast information and the RTK accuracy model, determine the RTK forecast accuracy. Through the above-mentioned RTK positioning accuracy forecast method and system, users can predict the RTK positioning accuracy according to the ionospheric TEC forecast information, and obtain the prediction result, that is, the RTK forecast accuracy of the time to be reported, so that further processing can be performed according to the prediction result.

Description

The forecasting procedure of RTK positioning precision and system
Technical field
The present invention relates to mapping field of locating technology, particularly relate to forecasting procedure and the system of a kind of RTK positioning precision.
Background technology
RTK (Real-timekinematic, Real-time and Dynamic control system) is one of the most frequently used mapping means of survey field, is the indispensable measurement technology of survey field.But, RTK is the technology of " living at the mercy of the elements ", is often subject to the impact of the various extraneous factor such as ionospheric interference, solar activity.Especially ionospheric interference, no matter it is from Theoretical Calculation or actual measurement, ionized layer TEC (TotalElectronContent, ionospheric electron density total content, also known as ionospheric electron density post content, integration content etc., be in unit are electron concentration along the integration of height) concentration the impact of RTK positioning precision is very close.
RTK positioning precision is significant to mapping, if positioning precision is unsatisfactory for requirement, then will have a strong impact on the accuracy of mapping.At present, for the technology maturation of the monitoring of ionized layer TEC and forecast, there is such as Tian Bao company of the U.S. real-time ionized layer TEC monitoring and forecast system；But, the forecast to RTK positioning precision, there is presently no corresponding method and system.
Summary of the invention
Based on this, it is necessary to provide forecasting procedure and the system of a kind of RTK positioning precision RTK positioning precision can forecast.
A kind of forecasting procedure of RTK positioning precision, including step:
Obtain ionized layer TEC forecast information；
Obtain the RTK accuracy model set up according to RTK positioning accuracy information and ionized layer TEC information；
Described RTK positioning accuracy information includes: time, baseline and RTK positioning precision；Described ionized layer TEC information includes: described time, described baseline and ionized layer TEC；
According to described ionized layer TEC forecast information and described RTK accuracy model, it is determined that RTK forecast precision to be called time.
By the forecasting procedure of above-mentioned RTK positioning precision, RTK positioning precision can be predicted by user according to ionized layer TEC forecast information, is predicted the outcome, RTK forecast precision namely to be called time.Thus relevant treatment can be carried out according to the situation to predicted anomaly that predicts the outcome, as notified user.According to predicting the outcome, location information can also be made to preset processing.As when RTK positioning precision is when predictive value sometime is not in preset range, namely do not met the demand of certain operation, then can pre-set the location information not receiving the corresponding time, to economize on resources；Or take alternate manner to obtain the location information of corresponding time for completing this operation.
A kind of forecast system of RTK positioning precision, including:
Forecast TEC acquisition module, is used for obtaining ionized layer TEC forecast information；
Accuracy model acquisition module, for obtaining the RTK accuracy model set up according to RTK positioning accuracy information and ionized layer TEC information；
Described RTK positioning accuracy information includes: time, baseline and RTK positioning precision；Described ionized layer TEC information includes: described time, described baseline and ionized layer TEC；
RTK precision Prediction module, for according to described ionized layer TEC forecast information and described RTK accuracy model, it is determined that RTK forecast precision to be called time.
By the forecast system of above-mentioned RTK positioning precision, RTK positioning precision can be predicted by user according to ionized layer TEC forecast information, is predicted the outcome, RTK forecast precision namely to be called time.Thus relevant treatment can be carried out according to the situation to predicted anomaly that predicts the outcome, as notified user.According to predicting the outcome, location information can also be made to preset processing.As when RTK positioning precision is when predictive value sometime is not in preset range, namely do not met the demand of certain operation, then can pre-set the location information not receiving the corresponding time, to economize on resources；Or take alternate manner to obtain the location information of corresponding time for completing this operation.
Accompanying drawing explanation
Fig. 1 is the flow chart of the forecasting procedure of the RTK positioning precision of a kind of embodiment；
Fig. 2 is the flow chart of the forecasting procedure of the RTK positioning precision of another embodiment；
Fig. 3 is the structure chart of the forecast system of the RTK positioning precision of a kind of embodiment；
Fig. 4 is the structure chart of the forecast system of the RTK positioning precision of another embodiment.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Accompanying drawing gives the preferred embodiment of the present invention.But, the present invention can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, the purpose providing these embodiments is to make the understanding to the disclosure more thorough comprehensively.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used in the description of the invention herein is intended merely to the purpose describing specific embodiment, it is not intended that in the restriction present invention.Term as used herein " or/and " include the arbitrary and all of combination of one or more relevant Listed Items.
As it is shown in figure 1, the forecasting procedure of the RTK positioning precision of a kind of embodiment, including step:
S210: obtain ionized layer TEC forecast information.
Adopt prior art can obtain ionized layer TEC forecast information, as obtained the ionized layer TEC of expectation to be called time by the monitoring of the ionized layer TEC of Tian Bao company of the U.S. and forecast system, and estimate TEC.In the present embodiment, ionized layer TEC forecast information includes: wait to call time and estimate TEC.Wait to call time, for needing the time having not occurred of forecast RTK positioning precision.RTK positioning precision is the precision of the position location in the information of location.That is, wait to call time the acquisition time into location information corresponding to the RTK positioning precision of forecast.
S230: obtain the RTK accuracy model set up according to RTK positioning accuracy information and ionized layer TEC information.
Described RTK positioning accuracy information includes: time, baseline and RTK positioning precision, and described RTK positioning precision is the precision of the position location in the information of location；Described ionized layer TEC information includes: described time, described baseline and ionized layer TEC；Described location information includes: time, baseline and described position location.Location information is sent by RTK monitoring station.
S250: according to described ionized layer TEC forecast information and described RTK accuracy model, it is determined that RTK forecast precision to be called time.
In the present embodiment, described RTK forecast precision includes the precision of position location, i.e. RTK positioning precision in location information to be called time described on each baseline.Here RTK positioning precision, is the predictive value determined by RTK accuracy model.
By the forecasting procedure of above-mentioned RTK positioning precision, RTK positioning precision can be predicted by user according to ionized layer TEC forecast information, is predicted the outcome, RTK forecast precision namely to be called time.Thus relevant treatment can be carried out according to the situation to predicted anomaly that predicts the outcome, as notified user.According to predicting the outcome, location information can also be made to preset processing.As when RTK positioning precision is when predictive value sometime is not in preset range, namely do not met the demand of certain operation, then can pre-set the location information not receiving the corresponding time, to economize on resources；Or take alternate manner to obtain the location information of corresponding time for completing this operation.
In another embodiment, described ionized layer TEC forecast information also includes: treat report baseline.Described RTK forecast precision treats RTK positioning precision to be called time described on report baseline described in being.Treat that report baseline is the baseline needing forecast RTK positioning precision.So, it is possible to economize on resources, it is not necessary to determine the RTK positioning precision on the baseline that user is not required to carry out forecasting.
Wherein in an embodiment, differential corrections that described location information is sent according to positional information and base station by described RTK monitoring station and determine.Wherein, positional information is GNSS (GlobalNavigationSatelliteSystem, the GLONASS) satellite-signal including position location sent.Differential corrections is the data that the position location in satellite-signal is modified determining position location that RTK base station is determined according to the reference position of the GNSS satellite-signal including position location sent and base station.
As in figure 2 it is shown, wherein in an embodiment, further comprise the steps of:
S110: obtain real-time location information；
S130: described real-time location information is resolved, it is determined that real-time RTK positioning accuracy information；
S220: according to described real-time RTK positioning accuracy information, sends the report of real-time RTK precision, and the report of described real-time RTK precision includes: real-time time, monitoring baseline and real-time RTK positioning precision.
Whether so, user can be obtain real-time RTK positioning accuracy information in time calling time at real-time time, and it is contrasted with the RTK forecast precision of forecast, accurate to determine forecast.And then, it is also possible to whether accurately it is further processed according to weather report.
Please continue to refer to Fig. 2, in another embodiment, before step S230, further comprise the steps of:
S110: obtain real-time location information.
S130: described real-time location information is resolved, it is determined that real-time RTK positioning accuracy information.
According to prior art, the position location in the information of location is resolved, it may be determined that RTK positioning precision sometime on a certain baseline.
S150: obtain real-time ionized layer TEC information.
Real-time Collection ionized layer TEC information, i.e. ionized layer TEC on Real-time Collection difference baseline, and record the time of collection.
S170: according to described RTK positioning accuracy information and described ionized layer TEC information, sets up different ionized layer TEC respectively to identical baseline and the different baseline RTK accuracy model to identical ionized layer TEC.
Mathematical knowledge according to statistics, theory of probability, by identical time, the RTK positioning accuracy information of identical baseline and ionized layer TEC information, it may be determined that RTK precision about the mathematical model of ionized layer TEC, i.e. the different ionized layer TEC RTK accuracy models to identical baseline；By identical time, the RTK positioning accuracy information of identical ionized layer TEC and ionized layer TEC information, it may be determined that RTK precision about the mathematical model of baseline, i.e. the different baseline RTK accuracy models to identical ionized layer TEC.
As it is shown on figure 3, the forecast system of the RTK positioning precision of a kind of embodiment, including:
Forecast TEC acquisition module 210, is used for obtaining ionized layer TEC forecast information.
Adopt prior art can obtain ionized layer TEC forecast information, as obtained the ionized layer TEC of expectation to be called time by the monitoring of the ionized layer TEC of Tian Bao company of the U.S. and forecast system, and estimate TEC.In the present embodiment, ionized layer TEC forecast information includes: wait to call time and estimate TEC.Wait to call time, for needing the time having not occurred of forecast RTK positioning precision.RTK positioning precision is the precision of the position location in the information of location.That is, wait to call time the acquisition time into location information corresponding to the RTK positioning precision of forecast.
Accuracy model acquisition module 230, for obtaining the RTK accuracy model set up according to RTK positioning accuracy information and ionized layer TEC information.
Described RTK positioning accuracy information includes: time, baseline and RTK positioning precision, and described RTK positioning precision is the precision of the position location in the information of location；Described ionized layer TEC information includes: described time, described baseline and ionized layer TEC；Described location information includes: time, baseline and described position location.Location information is sent by RTK monitoring station.
RTK precision Prediction module 250, for according to described ionized layer TEC forecast information and described RTK accuracy model, it is determined that RTK forecast precision to be called time.
In the present embodiment, described RTK forecast precision includes the precision of position location, i.e. RTK positioning precision in location information to be called time described on each baseline.Here RTK positioning precision, is the predictive value determined by RTK accuracy model.
By the forecast system of above-mentioned RTK positioning precision, RTK positioning precision can be predicted by user according to ionized layer TEC forecast information, is predicted the outcome, RTK forecast precision namely to be called time.Thus relevant treatment can be carried out according to the situation to predicted anomaly that predicts the outcome, as notified user.According to predicting the outcome, location information can also be made to preset processing.As when RTK positioning precision is when predictive value sometime is not in preset range, namely do not met the demand of certain operation, then can pre-set the location information not receiving the corresponding time, to economize on resources；Or take alternate manner to obtain the location information of corresponding time for completing this operation.
In another embodiment, described ionized layer TEC forecast information also includes: treat report baseline.Described RTK forecast precision treats RTK positioning precision to be called time described on report baseline described in being.Treat that report baseline is the baseline needing forecast RTK positioning precision.So, it is possible to economize on resources, it is not necessary to determine the RTK positioning precision on the baseline that user is not required to carry out forecasting.
Wherein in an embodiment, differential corrections that described location information is sent according to positional information and base station by described RTK monitoring station and determine.Wherein, positional information is GNSS (GlobalNavigationSatelliteSystem, the GLONASS) satellite-signal including position location sent.Differential corrections is the data that the position location in satellite-signal is modified determining position location that RTK base station is determined according to the reference position of the GNSS satellite-signal including position location sent and base station.
As shown in Figure 4, wherein in an embodiment, also include:
Location data obtaining module 110, for obtaining real-time location information；
Real-time accuracy determines module 130, for described real-time location information is resolved, it is determined that real-time RTK positioning accuracy information；
Real-time accuracy reporting modules 220, for according to described real-time RTK positioning accuracy information, sending the report of real-time RTK precision, the report of described real-time RTK precision includes: real-time time, monitoring baseline and real-time RTK positioning precision.
Whether so, user can be obtain real-time RTK positioning accuracy information in time calling time at real-time time, and it is contrasted with the RTK forecast precision of forecast, accurate to determine forecast.And then, it is also possible to whether accurately it is further processed according to weather report.
Please continue to refer to Fig. 4, in another embodiment, including:
Location data obtaining module 110, for obtaining real-time location information.
Real-time accuracy determines module 130, for described real-time location information is resolved, it is determined that real-time RTK positioning accuracy information.
According to prior art, the position location in the information of location is resolved, it may be determined that RTK positioning precision sometime on a certain baseline.
TEC acquisition module 150, for obtaining real-time ionized layer TEC information.
Real-time Collection ionized layer TEC information, i.e. ionized layer TEC on Real-time Collection difference baseline, and record the time of collection.
Accuracy model sets up module 170, for according to described RTK positioning accuracy information and described ionized layer TEC information, setting up different ionized layer TEC respectively to identical baseline and the different baseline RTK accuracy model to identical ionized layer TEC.
Mathematical knowledge according to statistics, theory of probability, by identical time, the RTK positioning accuracy information of identical baseline and ionized layer TEC information, it may be determined that RTK precision about the mathematical model of ionized layer TEC, i.e. the different ionized layer TEC RTK accuracy models to identical baseline；By identical time, the RTK positioning accuracy information of identical ionized layer TEC and ionized layer TEC information, it may be determined that RTK precision about the mathematical model of baseline, i.e. the different baseline RTK accuracy models to identical ionized layer TEC.
Above example only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making multiple deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1.一种RTK定位精度的预报方法，其特征在于，包括步骤：1. A forecasting method of RTK positioning accuracy, is characterized in that, comprises steps: 获取电离层TEC预报信息；Obtain ionospheric TEC forecast information; 获取根据RTK定位精度信息及电离层TEC信息建立的RTK精度模型；所述RTK定位精度信息包括：时间、基线及RTK定位精度；所述电离层TEC信息包括：所述时间、所述定位基线及电离层TEC；Obtain the RTK accuracy model established according to RTK positioning accuracy information and ionospheric TEC information; the RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy; the ionospheric TEC information includes: the time, the positioning baseline and Ionospheric TEC; 根据所述电离层TEC预报信息及所述RTK精度模型，确定待报时间的RTK预报精度。According to the ionospheric TEC forecast information and the RTK precision model, determine the RTK forecast precision of the time to be reported. 2.根据权利要求1所述的RTK定位精度的预报方法，其特征在于，所述电离层TEC预报信息包括：所述待报时间、待报基线及预计TEC；所述RTK预报精度为所述待报基线上所述待报时间的RTK预计精度。2. the forecasting method of RTK positioning accuracy according to claim 1, is characterized in that, described ionospheric TEC forecasting information comprises: described time to be reported, baseline to be reported and estimated TEC; Described RTK forecasting accuracy is described The RTK estimated accuracy for the stated time to report on the reported baseline. 3.根据权利要求1所述的RTK定位精度的预报方法，其特征在于，还包括步骤：3. the prediction method of RTK positioning accuracy according to claim 1, is characterized in that, also comprises the step: 获取实时的定位信息；Obtain real-time location information; 对所述实时的定位信息进行解算，确定实时的RTK定位精度信息；Resolving the real-time positioning information to determine real-time RTK positioning accuracy information; 根据所述实时的RTK定位精度信息，发送实时RTK精度报告，所述实时RTK精度报告包括：实时时间、监测基线及实时RTK定位精度。According to the real-time RTK positioning accuracy information, a real-time RTK accuracy report is sent, and the real-time RTK accuracy report includes: real-time time, monitoring baseline and real-time RTK positioning accuracy. 4.根据权利要求1-2任意一项所述的RTK定位精度的预报方法，其特征在于，所述获取根据RTK定位精度信息及电离层TEC信息建立的RTK精度模型的步骤之前，还包括步骤：4. according to the forecasting method of the RTK positioning accuracy described in any one of claim 1-2, it is characterized in that, before the step of the RTK accuracy model that described acquisition according to RTK positioning accuracy information and ionospheric TEC information set up, also comprises the step : 获取实时的定位信息；Obtain real-time location information; 对所述实时的定位信息进行解算，确定实时的RTK定位精度信息；Resolving the real-time positioning information to determine real-time RTK positioning accuracy information; 获取实时的电离层TEC信息；Obtain real-time ionospheric TEC information; 根据所述RTK定位精度信息及所述电离层TEC信息，分别建立不同电离层TEC对相同基线、及不同基线对相同电离层TEC的RTK精度模型。According to the RTK positioning accuracy information and the ionospheric TEC information, RTK accuracy models of different ionospheric TECs to the same baseline and different baselines to the same ionospheric TEC are respectively established. 5.根据权利要求1所述的RTK定位精度的预报方法，其特征在于，所述定位信息由所述RTK监测站根据位置信息及基准站发送的差分改正数而确定。5. The method for forecasting RTK positioning accuracy according to claim 1, wherein the positioning information is determined by the RTK monitoring station according to the position information and the differential correction number sent by the reference station. 6.一种RTK定位精度的预报系统，其特征在于，包括：6. A forecast system of RTK positioning accuracy, characterized in that, comprising: 预报TEC获取模块，用于获取电离层TEC预报信息；The forecast TEC acquisition module is used to acquire ionospheric TEC forecast information; 精度模型获取模块，用于获取根据RTK定位精度信息及电离层TEC信息建立的RTK精度模型；Accuracy model acquisition module, used to acquire the RTK accuracy model established according to RTK positioning accuracy information and ionospheric TEC information; 所述RTK定位精度信息包括：时间、基线及RTK定位精度；所述电离层TEC信息包括：所述时间、所述基线及电离层TEC；The RTK positioning accuracy information includes: time, baseline, and RTK positioning accuracy; the ionospheric TEC information includes: the time, the baseline, and ionospheric TEC; RTK精度预报模块，用于根据所述电离层TEC预报信息及所述RTK精度模型，确定待报时间的RTK预报精度。The RTK accuracy prediction module is used to determine the RTK prediction accuracy of the time to be reported according to the ionospheric TEC prediction information and the RTK accuracy model. 7.根据权利要求6所述的RTK定位精度的预报系统，其特征在于，所述电离层TEC预报信息包括：所述待报时间、待报基线及预计TEC；所述RTK预报精度为所述待报基线上所述待报时间的RTK预计精度。7. The forecasting system of RTK positioning accuracy according to claim 6, is characterized in that, described ionospheric TEC forecasting information comprises: described time to be reported, baseline to be reported and estimated TEC; Described RTK forecasting accuracy is described The RTK estimated accuracy for the stated time to report on the reported baseline. 8.根据权利要求6所述的RTK定位精度的预报系统，其特征在于，还包括：8. The forecasting system of RTK positioning accuracy according to claim 6, is characterized in that, also comprises: 定位信息获取模块，用于获取实时的定位信息；A positioning information acquisition module, configured to obtain real-time positioning information; 实时精度确定模块，用于对所述实时的定位信息进行解算，确定实时的RTK定位精度信息；A real-time accuracy determination module, configured to solve the real-time positioning information and determine real-time RTK positioning accuracy information; 实时精度报告模块，用于根据所述实时的RTK定位精度信息，发送实时RTK精度报告，所述实时RTK精度报告包括：实时时间、监测基线及实时RTK定位精度。The real-time accuracy report module is used to send a real-time RTK accuracy report according to the real-time RTK positioning accuracy information, and the real-time RTK accuracy report includes: real-time time, monitoring baseline and real-time RTK positioning accuracy. 9.根据权利要求6-7任意一项所述的RTK定位精度的预报系统，其特征在于，还包括：9. The prediction system of RTK positioning accuracy according to any one of claims 6-7, further comprising: 定位信息获取模块，用于获取实时的定位信息；实时精度确定模块，用于对所述实时的定位信息进行解算，确定实时的RTK定位精度信息；The positioning information acquisition module is used to obtain real-time positioning information; the real-time accuracy determination module is used to solve the real-time positioning information and determine the real-time RTK positioning accuracy information; TEC获取模块，用于获取实时的电离层TEC信息；The TEC acquisition module is used to acquire real-time ionospheric TEC information; 精度模型建立模块，用于根据所述RTK定位精度信息及所述电离层TEC信息，分别建立不同电离层TEC对相同基线、及不同基线对相同电离层TEC的RTK精度模型。The accuracy model building module is used to establish RTK accuracy models of different ionospheric TECs to the same baseline and different baselines to the same ionospheric TEC according to the RTK positioning accuracy information and the ionospheric TEC information. 10.根据权利要求6所述的RTK定位精度的预报系统，其特征在于，所述定位信息由所述RTK监测站根据位置信息及基准站发送的差分改正数而确定。10. The forecast system of RTK positioning accuracy according to claim 6, wherein the positioning information is determined by the RTK monitoring station according to the position information and the differential correction number sent by the reference station.
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