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CN105785409B - The forecasting procedure and system of RTK positioning accuracy - Google Patents

The forecasting procedure and system of RTK positioning accuracy Download PDF

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Publication number
CN105785409B
CN105785409B CN201510998676.9A CN201510998676A CN105785409B CN 105785409 B CN105785409 B CN 105785409B CN 201510998676 A CN201510998676 A CN 201510998676A CN 105785409 B CN105785409 B CN 105785409B
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China
Prior art keywords
rtk
information
time
accuracy
real
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CN201510998676.9A
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CN105785409A (en
Inventor
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
Publication of CN105785409A publication Critical patent/CN105785409A/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 prediction method and system for RTK positioning accuracy, obtaining ionospheric TEC prediction 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 prediction information and the RTK accuracy model, determine the RTK prediction accuracy. Through the above prediction method and system of RTK positioning accuracy, users can predict the RTK positioning accuracy according to the ionospheric TEC forecast information, and obtain the prediction result, that is, the RTK prediction accuracy of the time to be reported, so that further processing can be performed according to the prediction result.

Description

The forecasting procedure and system of RTK positioning accuracy
Technical field
The present invention relates to mapping field of locating technology more particularly to a kind of forecasting procedures and system of RTK positioning accuracy.
Background technique
RTK (Real-time kinematic, real-time kinetic-control system) be the most common mapping means of survey field it One, it is the indispensable measuring technique of survey field.However, RTK is the technology of one " living at the mercy of the elements ", often ionized The influence of the various extraneous factors such as layer interference, solar activity.The especially interference in ionosphere, either from theoretical calculation or reality In the measurement of border, ionized layer TEC (Total Electron Content, ionospheric electron density total content, also known as ionosphere electronics Concentration column content, integral content etc., be in unit area electron concentration along the integral of height) concentration to RTK positioning accuracy It influences very close.
RTK positioning accuracy is of great significance to mapping, if positioning accuracy is unsatisfactory for requiring, will seriously affect mapping Accuracy.Currently, the technology maturation of monitoring and forecast for ionized layer TEC, as U.S. Tian Bao company has ionization in real time Layer TEC monitoring and forecast system；However, the forecast to RTK positioning accuracy, there is presently no corresponding method and system.
Summary of the invention
Based on this, it is necessary to which providing one kind can be to the forecasting procedure for the RTK positioning accuracy that RTK positioning accuracy is forecast And system.
A kind of forecasting procedure of RTK positioning accuracy, comprising steps of
Obtain ionized layer TEC forecast information；
Obtain the RTK accuracy model established according to RTK positioning accuracy information and ionized layer TEC information；
The RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy；The ionized layer TEC information includes: The time, the baseline and ionized layer TEC；
According to the ionized layer TEC forecast information and the RTK accuracy model, RTK forecast precision to be called time is determined.
By the forecasting procedure of above-mentioned RTK positioning accuracy, user can be positioned RTK according to ionized layer TEC forecast information Precision is predicted, prediction result, that is, RTK forecast precision to be called time are obtained.So as to different to predicting according to prediction result Normal situation carries out relevant treatment, such as notifies user.Default processing can also be made to location information according to prediction result.Such as work as RTK positioning accuracy predicted value sometime not within a preset range when, that is, do not meet the demand of certain operation, then can be pre- The location information for not receiving the corresponding time is first set, to economize on resources；Or other way is taken to obtain to complete the operation The location information of corresponding time.
A kind of forecast system of RTK positioning accuracy, comprising:
Forecast that TEC obtains module, for obtaining ionized layer TEC forecast information；
Accuracy model obtains module, for obtaining the RTK according to RTK positioning accuracy information and the foundation of ionized layer TEC information Accuracy model；
The RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy；The ionized layer TEC information includes: The time, the baseline and ionized layer TEC；
RTK precision Prediction module, for according to the ionized layer TEC forecast information and the RTK accuracy model, determine to The RTK forecast precision to call time.
By the forecast system of above-mentioned RTK positioning accuracy, user can be positioned RTK according to ionized layer TEC forecast information Precision is predicted, prediction result, that is, RTK forecast precision to be called time are obtained.So as to different to predicting according to prediction result Normal situation carries out relevant treatment, such as notifies user.Default processing can also be made to location information according to prediction result.Such as work as RTK positioning accuracy predicted value sometime not within a preset range when, that is, do not meet the demand of certain operation, then can be pre- The location information for not receiving the corresponding time is first set, to economize on resources；Or other way is taken to obtain to complete the operation The location information of corresponding time.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the forecasting procedure of the RTK positioning accuracy of embodiment；
Fig. 2 is the flow chart of the forecasting procedure of the RTK positioning accuracy of another embodiment；
Fig. 3 is a kind of structure chart of the forecast system of the RTK positioning accuracy of embodiment；
Fig. 4 is the structure chart of the forecast system of the RTK positioning accuracy of another embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating It is thorough comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " or/and " it include one or more phases Any and all combinations of the listed item of pass.
As shown in Figure 1, a kind of forecasting procedure of the RTK positioning accuracy of embodiment, comprising steps of
S210: ionized layer TEC forecast information is obtained.
Ionized layer TEC forecast information can be obtained using the prior art, such as monitored by the ionized layer TEC of U.S. Tian Bao company Estimated ionized layer TEC to be called time, and it is expected that TEC are obtained with forecast system.In the present embodiment, ionized layer TEC is forecast Information includes: wait call time and it is expected that TEC.Wait call time, for need to forecast one of RTK positioning accuracy have not occurred when Between.RTK positioning accuracy is the precision of the position location in location information.That is, the RTK positioning accuracy wait call time as forecast corresponds to Location information acquisition time.
S230: the RTK accuracy model established according to RTK positioning accuracy information and ionized layer TEC information is obtained.
The RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy, and the RTK positioning accuracy is positioning The precision of position location in information；The ionized layer TEC information includes: the time, the baseline and ionized layer TEC；Institute Stating location information includes: time, baseline and the position location.Location information is sent by the monitoring station RTK.
S250: according to the ionized layer TEC forecast information and the RTK accuracy model, RTK forecast to be called time is determined Precision.
In the present embodiment, the RTK forecast precision includes on each baseline in the location information to be called time The precision of position location, i.e. RTK positioning accuracy.Here RTK positioning accuracy is that determined by RTK accuracy model one is pre- Measured value.
By the forecasting procedure of above-mentioned RTK positioning accuracy, user can be positioned RTK according to ionized layer TEC forecast information Precision is predicted, prediction result, that is, RTK forecast precision to be called time are obtained.So as to different to predicting according to prediction result Normal situation carries out relevant treatment, such as notifies user.Default processing can also be made to location information according to prediction result.Such as work as RTK positioning accuracy predicted value sometime not within a preset range when, that is, do not meet the demand of certain operation, then can be pre- The location information for not receiving the corresponding time is first set, to economize on resources；Or other way is taken to obtain to complete the operation The location information of corresponding time.
In another embodiment, the ionized layer TEC forecast information further include: baseline to be reported.The RTK forecast precision To be described wait report the RTK positioning accuracy to be called time on baseline.Baseline to be reported is the base for needing to forecast RTK positioning accuracy Line.In this way, can economize on resources, does not need to determine user and do not need RTK positioning accuracy on the baseline forecast.
The location information is sent out by the monitoring station RTK according to location information and base station in one of the embodiments, The differential corrections that send and determine.Wherein, location information be GNSS (Global Navigation Satellite System, Global Navigation Satellite System) send the satellite-signal including position location.Differential corrections are that RTK base station is sent out according to GNSS One of the base position determination of the satellite-signal and base station including position location sent is to the position location in satellite-signal It is modified the data to determine position location.
As shown in Fig. 2, further comprising the steps of: in one of the embodiments,
S110: real-time location information is obtained；
S130: resolving the real-time location information, determines real-time RTK positioning accuracy information；
S220: according to the real-time RTK positioning accuracy information, real-time RTK precision report, the real-time RTK essence are sent Degree report includes: real-time time, monitoring baseline and real-time RTK positioning accuracy.
In this way, user can be in real-time time obtain real-time RTK positioning accuracy information when calling time, and by its with The RTK forecast precision of forecast compares, to determine whether forecast is accurate.In turn, whether can also accurately do according to weather report into The processing of one step.
Please continue to refer to Fig. 2, in another embodiment, before step S230, further comprise the steps of:
S110: real-time location information is obtained.
S130: resolving the real-time location information, determines real-time RTK positioning accuracy information.
The position location in location information is resolved according to the prior art, can be determined on a certain baseline sometime RTK positioning accuracy.
S150: real-time ionized layer TEC information is obtained.
In real time acquisition ionized layer TEC information, i.e., acquire the ionized layer TEC on different baselines in real time, and record acquisition when Between.
S170: according to the RTK positioning accuracy information and the ionized layer TEC information, different ionized layer TECs are established respectively To identical baseline and different baseline to the RTK accuracy model of identical ionized layer TEC.
According to statistics, the mathematical knowledge of probability theory, by same time, the RTK positioning accuracy information of identical baseline and electricity Absciss layer TEC information can determine mathematical model of the RTK precision about ionized layer TEC, i.e., different ionized layer TECs are to identical baseline RTK accuracy model；It, can be true by same time, the RTK positioning accuracy information of identical ionized layer TEC and ionized layer TEC information Determine mathematical model of the RTK precision about baseline, i.e., RTK accuracy model of the different baselines to identical ionized layer TEC.
As shown in figure 3, a kind of forecast system of the RTK positioning accuracy of embodiment, comprising:
Forecast that TEC obtains module 210, for obtaining ionized layer TEC forecast information.
Ionized layer TEC forecast information can be obtained using the prior art, such as monitored by the ionized layer TEC of U.S. Tian Bao company Estimated ionized layer TEC to be called time, and it is expected that TEC are obtained with forecast system.In the present embodiment, ionized layer TEC is forecast Information includes: wait call time and it is expected that TEC.Wait call time, for need to forecast one of RTK positioning accuracy have not occurred when Between.RTK positioning accuracy is the precision of the position location in location information.That is, the RTK positioning accuracy wait call time as forecast corresponds to Location information acquisition time.
Accuracy model obtains module 230, is established for obtaining according to RTK positioning accuracy information and ionized layer TEC information RTK accuracy model.
The RTK positioning accuracy information includes: time, baseline and RTK positioning accuracy, and the RTK positioning accuracy is positioning The precision of position location in information；The ionized layer TEC information includes: the time, the baseline and ionized layer TEC；Institute Stating location information includes: time, baseline and the position location.Location information is sent by the monitoring station RTK.
RTK precision Prediction module 250 is used for according to the ionized layer TEC forecast information and the RTK accuracy model, really Fixed RTK forecast precision to be called time.
In the present embodiment, the RTK forecast precision includes on each baseline in the location information to be called time The precision of position location, i.e. RTK positioning accuracy.Here RTK positioning accuracy is that determined by RTK accuracy model one is pre- Measured value.
By the forecast system of above-mentioned RTK positioning accuracy, user can be positioned RTK according to ionized layer TEC forecast information Precision is predicted, prediction result, that is, RTK forecast precision to be called time are obtained.So as to different to predicting according to prediction result Normal situation carries out relevant treatment, such as notifies user.Default processing can also be made to location information according to prediction result.Such as work as RTK positioning accuracy predicted value sometime not within a preset range when, that is, do not meet the demand of certain operation, then can be pre- The location information for not receiving the corresponding time is first set, to economize on resources；Or other way is taken to obtain to complete the operation The location information of corresponding time.
In another embodiment, the ionized layer TEC forecast information further include: baseline to be reported.The RTK forecast precision To be described wait report the RTK positioning accuracy to be called time on baseline.Baseline to be reported is the base for needing to forecast RTK positioning accuracy Line.In this way, can economize on resources, does not need to determine user and do not need RTK positioning accuracy on the baseline forecast.
The location information is sent out by the monitoring station RTK according to location information and base station in one of the embodiments, The differential corrections that send and determine.Wherein, location information be GNSS (Global Navigation Satellite System, Global Navigation Satellite System) send the satellite-signal including position location.Differential corrections are that RTK base station is sent out according to GNSS One of the base position determination of the satellite-signal and base station including position location sent is to the position location in satellite-signal It is modified the data to determine position location.
As shown in figure 4, in one of the embodiments, further include:
Location information obtains module 110, for obtaining real-time location information；
Real-time accuracy determining module 130 determines that real-time RTK is fixed for resolving to the real-time location information Position precision information；
Real-time accuracy reporting modules 220, for sending real-time RTK precision according to the real-time RTK positioning accuracy information Report, the real-time RTK precision report includes: real-time time, monitoring baseline and real-time RTK positioning accuracy.
In this way, user can be in real-time time obtain real-time RTK positioning accuracy information when calling time, and by its with The RTK forecast precision of forecast compares, to determine whether forecast is accurate.In turn, whether can also accurately do according to weather report into The processing of one step.
Please continue to refer to Fig. 4, in another embodiment, comprising:
Location information obtains module 110, for obtaining real-time location information.
Real-time accuracy determining module 130 determines that real-time RTK is fixed for resolving to the real-time location information Position precision information.
The position location in location information is resolved according to the prior art, can be determined on a certain baseline sometime RTK positioning accuracy.
TEC obtains module 150, for obtaining real-time ionized layer TEC information.
In real time acquisition ionized layer TEC information, i.e., acquire the ionized layer TEC on different baselines in real time, and record acquisition when Between.
Accuracy model establishes module 170, for dividing according to the RTK positioning accuracy information and the ionized layer TEC information RTK accuracy model of the different ionized layer TECs to identical baseline and different baseline to identical ionized layer TEC is not established.
According to statistics, the mathematical knowledge of probability theory, by same time, the RTK positioning accuracy information of identical baseline and electricity Absciss layer TEC information can determine mathematical model of the RTK precision about ionized layer TEC, i.e., different ionized layer TECs are to identical baseline RTK accuracy model；It, can be true by same time, the RTK positioning accuracy information of identical ionized layer TEC and ionized layer TEC information Determine mathematical model of the RTK precision about baseline, i.e., RTK accuracy model of the different baselines to identical ionized layer TEC.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art, Without departing from the inventive concept of the premise, multiple modification and improvement can also be made, these belong to protection model of the invention It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (8)

1.一种RTK定位精度的预报方法，其特征在于，包括步骤：1. a prediction method of RTK positioning accuracy, is characterized in that, comprises the 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；Acquire 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 positioning baseline, and the RTK positioning accuracy. 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；Determine the RTK prediction accuracy of the time to be reported according to the ionospheric TEC prediction information and the RTK accuracy model; 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：Before the step of obtaining the RTK accuracy model established according to the RTK positioning accuracy information and the ionospheric TEC information, the steps further include: 获取实时的定位信息；Obtain real-time positioning 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；Calculate the real-time positioning information to determine the 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 for the same baseline and different baselines for the same ionospheric TEC are respectively established. 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 prediction method of RTK positioning accuracy according to claim 1, wherein the ionospheric TEC prediction information comprises: the to-be-reported time, the to-be-reported baseline and the predicted TEC; the RTK prediction accuracy is the RTK prediction accuracy for the reported time on the to-be-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 positioning 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；Calculate the real-time positioning information to determine the 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。4 . The method for predicting RTK positioning accuracy according to claim 1 , wherein the positioning information is determined by the RTK monitoring station according to the position information and a differential correction number sent by a reference station. 5 . 5.一种RTK定位精度的预报系统，其特征在于，包括：5. a prediction system of RTK positioning accuracy, is characterized in that, comprises: 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 the 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 based on 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 the 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；RTK accuracy prediction module, used for determining the RTK prediction accuracy of the time to be reported according to the ionospheric TEC prediction information and the RTK accuracy model; 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 acquire 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；TEC acquisition module, 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 establishment module is configured to respectively establish RTK accuracy models of different ionospheric TECs for the same baseline and different baselines for the same ionospheric TEC according to the RTK positioning accuracy information and the ionospheric TEC information. 6.根据权利要求5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。6. The prediction system of RTK positioning accuracy according to claim 5, wherein the ionospheric TEC prediction information comprises: the time to be reported, the baseline to be reported and the predicted TEC; the RTK prediction accuracy is the RTK prediction accuracy for the reported time on the to-be-reported baseline. 7.根据权利要求5所述的RTK定位精度的预报系统，其特征在于，还包括：7. the prediction system of RTK positioning accuracy according to claim 5, 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；The positioning information acquisition module is used to acquire 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, used for calculating the real-time positioning information to determine the 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 reporting module is configured to send a real-time RTK accuracy report according to the real-time RTK positioning accuracy information, where the real-time RTK accuracy report includes: real-time time, monitoring baseline and real-time RTK positioning accuracy. 8.根据权利要求5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。8 . The prediction system of RTK positioning accuracy according to claim 5 , 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. 9 .
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