JP3715286B2 - Fixed point positioning method such as vertical reference point and fixed point position information recording system - Google Patents

Description

表1左欄に示す最初の時間帯(11:30〜11:45)では、上記両計測点間の距離の誤差BC−BC(46hr)が0.36mmと小さいので、既に高精度の観測データが得られているように見えるが、第２計測点のｚ座標の誤差C_Z−C_Z(46hr)が５mmもあり、又、この時間帯のRTK計測の結果を図４〜図６で観察すると、特にＸ座標及びＹ座標が無視することのできない増減の傾向を示しているので、計測を継続するべきと判断する。
【００３３】
時刻12:15まで計測を継続すると、第1、第2計測点B,C間の距離の誤差BC−BC(46hr)が0.63mmと十分小さく、又、Ｘ，Ｙ，Ｚ座標の誤差C_X −C_X(46hr)…も１mm以下で十分小さいので、観測時間が所要時間に達したと判断できる。念のため、時刻13:30まで観測を継続したが計測誤差はほぼ一定で十分に収束している。
【００３４】
表２は、表１と同じ解析対象を、同一アンテナから受信した同一信号に基づいて、ＳＴＡＴＩＣ測位により解析した結果を示している。表中の記号の意味は表１のそれと同じである。
【００３５】
【表２】

表２は、表１とよく一致した結果を示しており、時刻12:15分までの計測結果から第１、第２計測点間距離、Ｘ，Ｙ，Ｚ座標の誤差のいずれも1mm以下となっている。尚、Ｚ座標の誤差はその後やや増加しているが、これはＲＴＫ測位とＳＴAＴＩＣ測位との解析方法の差と考えられ、基準点の誤差としては実用上十分小さい。
【００３６】
又、表１と表２とが良く一致していることから、距離の実測値と比較しなくとも、ＲＴＫ測位から求めた２点間距離の収斂状況から計測精度を把握することができることが判る。
【００３７】
【発明の効果】
本発明は上記構成のものであり、請求項１の発明によれば次の効果を奏する。
○不動点に対する第１、第２計測点の座標情報をＳＴAＴＩＣ測位で記録しながら、第１、第２計測点の相対的距離をＲＴＫ測位で測定し、該ＲＴＫ測位による測定距離が一定範囲に収斂するまでＳＴAＴＩＣ測位用の位置データを蓄積するから、所要の精度でＳＴAＴＩＣ測位を行うために必要なデータを測定できたか否かをＲＴＫ測位によりリアルタイムで判断することができ、ＳＴAＴＩＣ測位の計測を終了した後に解析の結果、精度不足が判明することがない。
○上記の如くＳＴＡＴＩＣ測位用の測定の精度がその測定中に判るから、建設作業の妨げることなく必要最小限の時間で高精度の測位を行うことができる。
○更に上記ＳＴAＴＩＣ測位とＲＴＫ測位とを並行して行うだけなので、特別の解析技術やノウハウを用いなくても、高精度な基準点計測が可能である。
○ＧＳＰを用いるので、従来の測量方法では不可能であった夜間、雨天でも高精度に基準点測量が可能である。
【００３８】
請求項２の発明によれば、上記第1、第2計測点B,C間の距離を予め既知方法で測定し、この測定距離と上記ＲＴＫ測位により測定した第1、第2計測点B,C間の計測距離の平均値とを対比して該計測距離の収斂の状況を判断するから、より確実に収斂状況を把握である。
【００３９】
請求項３の発明によれば、上記第1、第2計測点B,Cを、人工衛星からの電波信号を受信可能な建物の上層階にとったから、予め両計測点の間の距離を測定する場合に計測点の一方を地上にとったときと比較して、その測定が容易である。
【００４０】
請求項４の発明によれば、上記ＳＴAＴＩＣ測位用の位置情報の記録から、ＲＴＫ測位用の信号の解析により外乱が大きいと判断される時間帯の位置情報を除いて解析を行なうから、更に定点の測位の精度を向上させることができる。
【００４１】
請求項５の発明によれば、上記ＳＴＡＴＩＣ測位用の位置情報の記録から、ＲＴＫ測位用の信号の解析により、サイクルスリップの発生頻度の大きいと判断される人工衛星からの信号を除いて解析を行なうから、定点の測位精度を向上させることができる。
【００４２】
請求項６によれば、第１、第２計測点の信号受信機2,2と上記ＳＴAＴＩＣ測位用位置情報記録装置４との間の信号伝達経路の途中に設けた信号分配器3,3で信号を分岐するように設けたから、簡単な構成で同一信号をＳＴAＴＩＣ測位用及びＲＴＫ測位用に分離することができる。
【図面の簡単な説明】
【図１】 本発明に係る定点位置情報記録システムの説明図である。
【図２】 同システムに使用される信号受信機の正面図である。
【図３】 同システムの概念図である。
【図４】 同システムでＲＴＫ測位をした測点のＸ座標の時間変化である。
【図５】 同システムでＲＴＫ測位をした測点のＹ座標の時間変化である。
【図６】 同システムでＲＴＫ測位をした測点のＺ座標の時間変化である。
【図７】 従来のＲＴＫ測位法による観測結果である。
【符号の説明】
１…ＳＴAＴＩＣ測位用位置情報記録システム
２…信号受信機 ３…信号分配器
４…ＳＴAＴＩＣ測位用位置情報記録装置
５…ＲＴＫ測位用位置情報記録装置
６…ＲＴＫ測位用データ解析装置 ７…モニター
Ａ…不動点 Ｂ…第1計測点 Ｃ…第２計測点 Ｅ…構造物[0001]
[Field of the Invention]
The present invention relates to a method of positioning a fixed point such as a vertical reference point of a building using a so-called GPS (global positioning system that measures the position of a receiving point using a positioning signal from an artificial satellite), and The present invention relates to a fixed point position information recording system.
[0002]
In the present specification, the “fixed point” means a point that is located at a fixed place for a time required for the STATIC positioning described later, particularly a point fixed to a building or the ground. It shall include points that are quasi-statically displaced with respect to the observation base point due to the inclination of the building or land subsidence.
[0003]
[Prior art]
In order to accurately measure the position of a fixed point such as a vertical reference point of a high-rise building in the middle of construction or the displacement thereof, a method using the GPS has been proposed as follows.
(1) A method of analyzing a signal from an artificial satellite received at a base point on the ground and a single point on the building roof, and positioning the point with respect to the base point (Patent Document 1 and Patent Document 2).
(2) At the time of measurement and past reference time, analyze the signals received from multiple artificial satellites of the same arrangement and the same combination to calculate the coordinates of the measurement points, and subtract the reference time coordinates from the measurement time coordinates. A method of measuring the displacement of the position of the measuring point (Patent Document 3 and Patent Document 4).
[0004]
As GPS positioning methods, RTK positioning (real-time dynamic interference positioning) that immediately analyzes observation data obtained in a short time of about 1 second to 1 minute and outputs the analysis result, tens of minutes to several hours It is known that STATIC positioning (static interference positioning) is performed by analyzing a record of observation data obtained over a long observation time (see paragraph “0003” of Patent Document 3, for example).
[0005]
[Patent Document 1]
Japanese Patent No. 3207060 [Patent Document 2]
Japanese Patent No. 3280812 [Patent Document 3]
Japanese Patent No. 2995955 [Patent Document 4]
Japanese Patent No. 3055680 [0006]
[Problem to be Solved by the Invention]
The results of GPS positioning include the relative positional relationship of multiple satellites that transmitted the observed signals, cycle slips (malfunctions due to radio wave blocking between the satellites and the receiver), and poor environmental conditions around the antenna. Errors occur periodically or irregularly due to disturbances such as the presence or absence of radio wave reflectors and poor ionospheric conditions. FIG. 7 shows the change over time in the measurement error of RTK positioning, but errors due to two large disturbances are recognized in the time zone from 7:30:08 to 09:00:16.
[0007]
The above method (1) does not include any special means for ensuring accuracy against the influence of the above disturbances, etc., and therefore requires a long observation time according to the magnitude of the disturbance in order to increase the accuracy. However, when STATIC positioning is used for this method, the accuracy of the measurement result is not known until the data measurement is completed and analyzed in the STATIC positioning. Inconveniences such as making measurements longer than necessary to avoid this are likely to occur. On the other hand, when RTK positioning is used, the state of disturbance at the time of measurement is known, but since the received signal from the artificial satellite is not recorded, the analysis cannot be performed again except for the part where the disturbance is large in the observation time. It is difficult to improve the analysis accuracy.
[0008]
The method (2) described above proposes to measure the displacement of the measuring point with high accuracy by selecting the measurement time so that the arrangement conditions of the artificial satellites are the same. The condition is that the situation around the station is the same. If the surrounding environmental conditions at the time of measurement change as the vertical reference point described above moves up with the progress of construction, accuracy improvement cannot be expected even if the measurement time is adjusted.
[0009]
The present invention is a method for positioning a fixed point such as a vertical reference point of a building by using both STATIC positioning and RTK positioning, and can determine whether the accuracy is good or not during the STATIC positioning observation. It is an object of the present invention to provide a method capable of obtaining a good observation result in a short time without being influenced by the environment and a system capable of recording position information for fixed point positioning.
[0010]
[Means for Solving the Problems]
The first means of the present invention is a fixed point positioning method such as a vertical reference point,
STATIC positioning that receives radio signals from artificial satellites at two points, analyzes the received records and determines the relative positions of both points, and RTK positioning that measures the relative positions of the two points simultaneously with the reception of the above signals. A positioning method using both
The signals received at the fixed point A and the first and second measurement points B and C are recorded in the STATIC positioning position information recording device 4,
In parallel with the recording process, each measurement point B and C is repeated by RTK positioning using only the same signal as the received signal at the first and second measurement points B and C recorded in the recording device. Positioning,
The relative position thru | or the relative distance between both measurement points B and C are calculated from this positioning result,
The positional information of the fixed point A and the measurement points B and C is accumulated in the recording device 4 until the relative position or the relative distance is converged within a certain range, and then the recording is analyzed. The relative positions of the measurement points B and C are determined.
[0011]
The second means includes the first means, and the distance between the first and second measurement points B and C is previously measured by a known method, and the first measured by the measurement distance and the RTK positioning is used. The distance measured by the RTK positioning is converged when the difference from the average value of the distances between the second measurement points B and C becomes a certain value or less.
[0012]
A third means includes the first means or the second means, and the first and second measurement points B and C are located on an upper floor of a building capable of receiving a radio signal from an artificial satellite, and The fixed point A is on the ground.
[0013]
The fourth means includes the first means, the second means, or the third means, and from the recording of the position information for the STATIC positioning, if the disturbance is large due to the analysis of the signal for the RTK positioning The analysis is performed excluding the position information of the determined time zone.
[0014]
The fifth means includes the first means, the second means, or the third means, and from the recording of the position information for the STATIC positioning, the analysis of the signal for the RTK positioning allows the cycle slip to be detected. Analysis is performed with the exception of signals from artificial satellites that are judged to have a high frequency of occurrence.
[0015]
The sixth means is a fixed point position information recording system used in the fixed point positioning method described in any of the first to fifth means ,
In order to receive a radio wave signal from an artificial satellite, signal receivers 2... Arranged at the fixed point A and the first and second measurement points B and C, respectively,
STATIC positioning position information recording device 4 for recording signals transmitted from these signal receivers;
A signal distributor 3 provided in the middle of a signal transmission path between the signal receiver 2 installed at the first and second measurement points B and C and the STATIC positioning position information recording device 4;
An RTK positioning data analysis device 6 for analyzing the signals branched by the signal distributor 3 and determining the relative positions of the first and second measurement points by RTK positioning;
A monitor 7 for displaying the relative position or relative distance between the two measurement points B and C in real time ;
In parallel with the recording of the position information in the STATIC positioning position information recording devices 4..., The signals branched by the signal distributors 3 and 3 are analyzed by the RTK positioning data analyzing device 6, and the first, The relative positions or relative distances of the second measurement points B and C are measured.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show a fixed point position information recording system 1 according to the present invention.
[0017]
This fixed point position information recording system includes a signal receiver 2 that receives radio signals from an artificial satellite, signal distributors 3 and 3, a position information recording device 4 for STATIC positioning, and a position information recording for RTK positioning. It comprises devices 5 and 5, an RTK positioning data analysis device 6, and a monitor 7.
[0018]
The signal receivers 2 are arranged at a fixed point A on the ground and two first and second measurement points B and C on the roof of the structure E being built. The signal receivers 2 are known, and a GPS signal receiving antenna 13 is disposed on a tripod 11 via a leveling table 12 as shown in FIG.
[0019]
The signal distributors 3 and 3 branch the signals from the signal receivers 2 and 2 located at both measurement points B and C into the same signals for STATIC positioning and RTK positioning.
[0020]
The position information recording device 4 for STATIC positioning is for accumulating and recording the signal from the signal receiver 2 as position information, and directly to the signal receiver at a fixed point A, or Both the measurement points B and C are connected via the signal distributors 3 and 3, respectively.
[0021]
The RTK positioning position information recording devices 5 and 5 are connected to the signal distributors 3 and 3 to temporarily store the branch signals sent from the signal distributors and wirelessly RTK positioning data analysis devices 6. Configured to forward to. The RTK position information recording device 5 and the RTK positioning data analysis device 6 may be connected by wire.
[0022]
The RTK positioning data analysis device 6 analyzes the signals received at the first and second measurement points B and C by RTK positioning, and outputs the result to the monitor 7 in real time. In the illustrated example, the analysis device 6 is installed near the fixed point A. However, the installation location may be anywhere as long as a signal from the RTK position information recording device 5 can be received.
[0023]
Next, the fixed point positioning method according to the present invention will be described.
(1) Setting of signal receiver The first measurement that is the fixed point A around the structure E is the fixed point A, which is the base point for STATIC positioning, and one point on the roof of the structure E is the base point for RTK positioning. At the point B, the vertical reference point on the roof of the structure E is further selected as the second measurement point C, and the signal receivers 2 are installed. An appropriate distance is taken between the first and second measurement points.
(2) Measurement between the first and second measurement points The distance between these two measurement points is precisely measured by an appropriate means, and the measured distance (hereinafter referred to as “standard distance”) is used for the RTK positioning data analysis apparatus. Record in 6. As a measuring method, in addition to general distance measuring means such as a tape measure and a laser distance meter, GPS positioning can also be used.
(3) Recording of STATIC positioning position information At the fixed point A and the first and second measurement points B and C, radio signals from artificial satellites are received by the signal receiver 2... And these signals are received. Each is transmitted to the STATIC positioning position information recording device 4 and recorded.
(4) Distribution of position information for RTK positioning In parallel with the recording process of (3) above, the signals transmitted from the signal receivers 2 at both measurement points B and C are branched by the signal distributor 3, Are sequentially transmitted to the RTK positioning data analysis device 6 via the RTK positioning position information recording device 5. It is also possible to omit the temporary storage of the transmission data in the RTK positioning position information recording device 5 and to immediately transmit the signal branched from the signal distributor 3 to the RTK positioning data analysis device 6. (5) Analysis of RTK positioning position information The RTK positioning data analysis apparatus 6 uses the RTK positioning method to calculate the three-dimensional coordinates of the first measurement point B with respect to the second measurement point C for each appropriate unit time zone. Measure the relative distance between the two measurement points, calculate the error between this measurement distance and the standard distance measured in advance by a known method, and repeat this measurement and measurement operation for each unit time zone. Measurement values such as the relative coordinates of the two measurement points, the relative distance, and the error from the standard distance are output to the monitor 7 in real time and displayed over time. Furthermore, it is desirable to display the average value of the measured values in each unit time zone on the monitor 7 together.
(6) Processing of analysis results of RTK positioning Observe the monitor 7 and analyze the analysis distance between the two measurement points in a certain time zone (for example, the time zone around 12:00 in the data shown in FIG. 6 described later). When the data is particularly prominent as compared with that in other time zones, it is determined that the disturbance is particularly large in that time zone, and the time zone is recorded.
[0024]
All three-dimensional coordinates of the first measurement point B calculated by the above RTK positioning no longer change significantly, and the error between the measurement distance between the two measurement points B and C by the RTK positioning and the standard distance is below a certain level. At that time, it is determined that enough observation data has been accumulated to perform STATIC positioning, and reception of signals from the satellite is stopped.
(7) After the reception of the STATIC positioning signal is stopped, the data recorded in each STATIC positioning position information recording device 4 installed at the fixed point A and the first and second measuring points B and C as shown in FIG. Is taken out and read by the data analysis apparatus 31 for STATIC positioning installed outside.
[0025]
Then, with the fixed point A as the observation base point and the second measurement point C corresponding to the vertical reference point as the measurement point, the position information recorded in the STATIC positioning position information recording device 4 at both points is analyzed by the STATIC positioning method. The coordinates of the first measurement point can be accurately obtained.
[0026]
At that time, if the position information in the time zone with a large disturbance recorded in the above step (6) and the signal from the artificial satellite with the frequent occurrence of the cycle slip described above are excluded from the analysis target, the coordinates of the first measurement point The accuracy of is further increased.
[0027]
The same procedure is used to obtain the coordinates of the first measurement point with the fixed point A as the observation base point and the first measurement point B as the measurement point, and from this, the relative distance between the first and second measurement points is calculated. If it is confirmed that the error is equal to or less than the required amount compared to the standard distance, the reliability of the second measurement point with respect to the coordinate analysis is further increased.
[0028]
The direction of the first measurement point relative to the second measurement point C can also be determined from the positions of the signal receivers 2 and 2 installed at two locations on the building roof.
[0029]
In the above process, the above process (2) (measurement of the distance between the first and second measurement points by a known method) is omitted, and the relative coordinates between the first and second measurement points by the RTK positioning are The degree of convergence of the data may be determined based only on the observation data indicating the change over time in the relative distance.
[0030]
【Example】
4 to 6 show measurement waveforms when the X, Y, and Z coordinates of the first measurement point are RTK-positioned every second for 2 hours. For both the X, Y, and Z coordinates, there are fluctuations between the short period and the long period.
[0031]
Table 1 below shows the average values (C _X , C _Y , C _Z ), X, Y, Z coordinates of the second measurement point C shown in FIGS. It shows the distance BC between one measurement point and the error between the measured value of the coordinate or distance for each time zone and the corresponding measured value when 46-hour STATIC positioning is performed.
[0032]
[Table 1]

In the first time zone shown in the left column of Table 1 (11: 30-11: 45), the error BC-BC (46hr) of the distance between the two measurement points is as small as 0.36mm. Although it seems to have been obtained, the error C _Z -C _Z (46hr) of the z coordinate of the second measurement point is 5 mm, and the RTK measurement results in this time zone are observed in FIGS. In particular, since the X coordinate and Y coordinate indicate a tendency to increase or decrease that cannot be ignored, it is determined that the measurement should be continued.
[0033]
If measurement is continued until time 12:15, the error BC-BC (46hr) of the distance between the first and second measurement points B and C is as small as 0.63 mm, and the error C _{X of the} X, Y and Z coordinates. -C _X (46hr) ... is also sufficiently small at 1 mm or less, so it can be determined that the observation time has reached the required time. As a precaution, the observation was continued until 13:30, but the measurement error was almost constant and converged sufficiently.
[0034]
Table 2 shows the result of analyzing the same analysis target as in Table 1 by STATIC positioning based on the same signal received from the same antenna. The meaning of the symbols in the table is the same as that in Table 1.
[0035]
[Table 2]

Table 2 shows a result that is in good agreement with Table 1. From the measurement results up to 12:15 minutes, the distance between the first and second measurement points and the error in the X, Y, and Z coordinates are all 1 mm or less. It has become. Although the error of the Z coordinate has slightly increased since then, this is considered to be a difference in the analysis method between the RTK positioning and the STATIC positioning, and the reference point error is sufficiently small in practice.
[0036]
Moreover, since Table 1 and Table 2 are in good agreement, it can be understood that the measurement accuracy can be grasped from the convergence state of the distance between the two points obtained from the RTK positioning without comparing with the measured value of the distance. .
[0037]
【The invention's effect】
The present invention is configured as described above. According to the first aspect of the present invention, the following effects can be obtained.
○ While recording the coordinate information of the first and second measurement points with respect to the fixed point by STATIC positioning, measure the relative distance of the first and second measurement points by RTK positioning, and the measurement distance by the RTK positioning is within a certain range Since position data for STATIC positioning is accumulated until convergence, it is possible to determine in real time whether or not the data necessary for STATIC positioning can be measured with the required accuracy by RTK positioning. As a result of the analysis after the completion, the lack of accuracy is not found.
As described above, since the accuracy of measurement for STATIC positioning is known during the measurement, high-accuracy positioning can be performed in the minimum necessary time without interfering with construction work.
○ Furthermore, since the STATIC positioning and RTK positioning are only performed in parallel, high-precision reference point measurement is possible without using special analysis techniques or know-how.
○ Because GSP is used, reference point surveying is possible with high accuracy even at night and in the rain, which was impossible with conventional surveying methods.
[0038]
According to the invention of claim 2, the distance between the first and second measurement points B and C is measured in advance by a known method, and the first and second measurement points B and C measured by the measurement distance and the RTK positioning are used. Since the state of convergence of the measurement distance is judged by comparing with the average value of the measurement distance between C, it is possible to grasp the convergence state more reliably.
[0039]
According to the invention of claim 3, since the first and second measurement points B and C are taken on the upper floor of the building capable of receiving the radio signal from the artificial satellite, the distance between the two measurement points is measured in advance. This is easier to measure than when one of the measurement points is on the ground.
[0040]
According to the invention of claim 4, since the analysis is performed by excluding the position information in the time zone in which the disturbance is determined to be large by the analysis of the signal for RTK positioning from the recording of the position information for STATIC positioning, a fixed point is further obtained. The accuracy of positioning can be improved.
[0041]
According to the fifth aspect of the present invention, analysis is performed by excluding signals from artificial satellites that are determined to have a high frequency of cycle slips by analyzing RTK positioning signals from the recording of position information for STATIC positioning. Since this is done, the positioning accuracy of the fixed point can be improved.
[0042]
According to claim 6, the signal distributors 3, 3 provided in the middle of the signal transmission path between the signal receivers 2, 2 at the first and second measurement points and the position information recording device 4 for STATIC positioning are provided. Since the signals are provided to be branched, the same signal can be separated for STATIC positioning and RTK positioning with a simple configuration.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a fixed point position information recording system according to the present invention.
FIG. 2 is a front view of a signal receiver used in the system.
FIG. 3 is a conceptual diagram of the system.
FIG. 4 is a time change of the X coordinate of a measurement point obtained by RTK positioning in the same system.
FIG. 5 is a time change of a Y coordinate of a measurement point obtained by RTK positioning in the same system.
FIG. 6 is a time change of the Z coordinate of a measurement point obtained by RTK positioning in the same system.
FIG. 7 is an observation result by a conventional RTK positioning method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... STATIC positioning position information recording system 2 ... Signal receiver 3 ... Signal distributor 4 ... STATIC positioning position information recording device 5 ... RTK positioning position information recording device 6 ... RTK positioning data analysis device 7 ... Monitor A ... Fixed point B ... First measurement point C ... Second measurement point E ... Structure

Claims (6)

STATIC positioning that receives radio signals from artificial satellites at two points, analyzes the received records and determines the relative positions of both points, and RTK positioning that measures the relative positions of the two points simultaneously with the reception of the above signals. A positioning method using both
The signals received at the fixed point A and the first and second measurement points B and C are recorded in the STATIC positioning position information recording device 4,
In parallel with the recording process, each measurement point B and C is repeated by RTK positioning using only the same signal as the received signal at the first and second measurement points B and C recorded in the recording device. Positioning,
The relative position thru | or the relative distance between both measurement points B and C are calculated from this positioning result,
The positional information of the fixed point A and the measurement points B and C is accumulated in the recording device 4 until the relative position or the relative distance is converged within a certain range, and then the recording is analyzed. A fixed-point positioning method such as a vertical reference point, wherein the relative positions of the measurement points B and C are determined. The distance between the first and second measurement points B and C is previously measured by a known method, and the measured distance and the average value of the distance between the first and second measurement points B and C measured by the RTK positioning are calculated. The fixed point positioning method according to claim 1, wherein the distance measured by RTK positioning is converged when the difference becomes a certain value or less. The first or second measurement point B or C is set on the upper floor of a building capable of receiving radio signals from an artificial satellite, and the fixed point A is set on the ground. Fixed point positioning method according to 2. 3. The analysis is performed by excluding position information in a time zone in which a disturbance is determined to be large by analysis of a signal for RTK positioning from the recording of the position information for STATIC positioning. Or the fixed point positioning method of Claim 3. The analysis is performed by excluding a signal from an artificial satellite which is determined to have a high frequency of occurrence of cycle slip by analysis of a signal for RTK positioning from the recording of position information for STATIC positioning. The fixed point positioning method according to claim 1, claim 2 or claim 3. A fixed point position information recording system for use in the fixed point positioning method according to any one of claims 1 to 5 ,
In order to receive a radio wave signal from an artificial satellite, signal receivers 2... Arranged at the fixed point A and the first and second measurement points B and C, respectively,
STATIC positioning position information recording device 4 for recording signals transmitted from these signal receivers;
A signal distributor 3 provided in the middle of a signal transmission path between the signal receiver 2 installed at the first and second measurement points B and C and the STATIC positioning position information recording device 4;
An RTK positioning data analysis device 6 for analyzing the signals branched by the signal distributor 3 and determining the relative positions of the first and second measurement points by RTK positioning;
A monitor 7 for displaying the relative position or relative distance between the two measurement points B and C in real time ;
In parallel with the recording of the position information in the STATIC positioning position information recording devices 4..., The signals branched by the signal distributors 3 and 3 are analyzed by the RTK positioning data analyzing device 6, and the first, A fixed point position information recording system provided to be able to measure a relative position or a relative distance between the second measurement points B and C.

Images