CN217133377U - Multipurpose space positioning information precision contrast analysis equipment - Google Patents

Abstract

The utility model provides a spatial localization information precision contrastive analysis equipment of multipurpose, relates to basic survey and drawing spatial localization technical field, and this equipment mainly comprises supporting part, centering flattening portion, operation portion triplex, and wherein operation portion comprises central authorities' location antenna, flexible arm, module fixed slot, air level pipe, circular level, positioning analysis module as most important part, through the fixed point measurement location data. The utility model discloses an equipment conveniently acquires multiunit data through adjusting flexible arm, level and rotating the interval and the position parameter of horizontal direction of adjustment location analysis module that the leveling portion can be convenient.

Description

Multipurpose space positioning information precision contrast analysis equipment

Technical Field

The invention relates to the technical field of basic mapping space positioning, in particular to equipment for quantifiable comparison and analysis of positioning accuracy of a global space positioning system at an appointed position and a using method thereof.

Background

The current Global Navigation Satellite System (GNSS) mainly has four major systems, which are: the satellite navigation system comprises a Chinese Beidou satellite navigation system (BDS), a United states Global navigation System (GPS), a Russian Global navigation System (GLONASS), and a Global navigation System developed and created by the European Union, namely a Galileo (GALILEO) satellite navigation system. Although the most core positioning principle is different, different positioning accuracy can be shown under different regions, different geographical landforms, different time periods, different natural climates and different human environmental conditions of the world according to different track heights, wiring lines, satellite numbers and hardware composition, and whether the accuracy of each positioning system is accurate under various conditions is an important problem which cannot be neglected in various engineering constructions.

The current methods for performing spatial positioning by using a positioning system mainly include two methods, which are respectively:

mode 1: and all the received satellite positioning information is indiscriminately used for one-time or multiple-time positioning, and the plurality of positioning data are jointly calculated to obtain the position information of the measurement point.

Mode 2: one or more satellites with higher precision in the four global positioning systems under the current scene are selected according to use experience to carry out one-time or multiple-time positioning, and the position information of the measuring point is obtained by jointly resolving a plurality of positioning data.

The two modes have defects, in the mode 1, the low-precision positioning data obtained by the global positioning system with lower positioning precision in the current measurement scene can lower the precision of the combined solution positioning result; in the method 2, the positioning accuracy experience of each global positioning system is not available in all scenarios, and almost no absolute experience is available in a specific scenario. Meanwhile, in the mode 1 and the mode 2, whether faults exist in a plurality of satellites in the same positioning system cannot be distinguished, if a certain satellite has events such as time service faults and broadcast faults, the positioning accuracy provided by the certain satellite influences the accuracy of the final combined solution of the position information to a great extent, and although similar faults rarely occur, the positioning accuracy of a single satellite cannot be quantized in the currently common mode 1 and the mode 2.

At present, when the precision of a positioning system is judged, no special device is used for acquiring position parameters, and data acquisition is inconvenient and inaccurate.

Disclosure of Invention

In view of the above-mentioned deficiencies in the background art, the present invention provides a versatile apparatus for comparing and analyzing spatial orientation information.

A multipurpose space positioning information precision contrast analysis device comprises a support part and a centering flattening part; and an operation part; the method is characterized in that:

the supporting part is a forced centering device;

the centering leveling part is a horizontal rotating platform and is supported by a supporting part, and the rotating center is an equipment central axis;

the operation part is a platform which is arranged on the centering leveling part, and the platform is provided with at least one telescopic arm, at least one circular level and a central locator; the telescopic arm is provided with at least one leveling pipe; the module fixing grooves are arranged at two ends of the telescopic arm; installing a positioning analysis module on a module fixing groove; the central locator is deployed in the center of the operating part platform and comprises a high-precision positioning antenna, a central processing unit and a memory;

the positioning antenna is positioned on the axis of the equipment.

The supporting part comprises a tripod and a cement pier.

The centering leveling part is a leveling device with an adjusting function, and the operation part is ensured to be in a horizontal position through adjustment.

The telescopic arm is in a drawer form with a guide rail, can be stretched in the horizontal direction, and is radially arranged on the operation part platform by taking the central positioner as the center.

The telescopic arm is one and is arranged in a straight line shape; or two, arranged in a cross shape; or four, arranged in a shape of a Chinese character 'mi'.

The telescopic distance of the telescopic arm can be accurately measured, and the telescopic distance can be accurately obtained by using equipment self-etching vernier calipers, telescopic arm fixed length telescopic buckles and the like.

The fixed slot is a thread slot, a buckle slot, a mortise and tenon slot or a magnetic attraction slot, and the main purpose of the fixing slot is to fix the positioning analysis module so that the analysis positioning module works at a fixed known position.

The positioning analysis module can obtain positioning signals of satellite broadcasting in at least one global positioning system, and information flow can be mutually transmitted between the positioning analysis module and a central processing unit in the central locator.

The utility model discloses an equipment conveniently acquires multiunit data through adjusting flexible arm, level and rotating the interval and the position parameter of horizontal direction of adjustment location analysis module that the leveling portion can be convenient.

Drawings

Fig. 1 is a schematic diagram of the constituent modules of the present invention;

FIG. 2 is a plan view of the working section of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is a side view of the present invention;

fig. 6 is a schematic diagram of the utility model.

In the figure, 1-supporting part, 2-centering flattening part, 3-working part, 4-central locator, 5-telescopic arm, 6 module fixing groove, 7-leveling tube, 8 circular level and 9-positioning analysis module.

Detailed Description

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: a multipurpose space positioning information precision comparison analysis device is composed of a supporting part 1, a centering flattening part 2 and an operation part 3.

The support part 1 is configured to have a stable supporting function, and in the present embodiment, is a pair of tripods.

The centering and leveling part 2 is arranged at the top end of the supporting part 1, the centering and leveling part 2 is a leveling device with an adjusting function, the upper end of the centering and leveling part 2 is connected with a platform of the operation part 3, the operation part 3 can be kept in a horizontal state by adjusting the centering and leveling part 2, the centering and leveling part 2 can horizontally rotate by taking the central axis of the equipment as an axis, and the horizontal posture of the equipment cannot be influenced.

The working section 3 is composed of a center positioner 4, a telescopic arm 5, a module fixing groove 6, a leveling tube 7, a circular level 8, and a positioning analysis module. The central locator 4 is arranged on the platform of the operation part 3, and the central locator 4 comprises a high-precision locating antenna, a central processing unit and a memory; the central positioning antenna is located on the central axis of the whole device and can receive satellite broadcast signals of all positioning systems, and the central processor and the memory are located on an integrated circuit board inside the operation part 3.

The telescopic arm 5 is horizontally arranged on the platform of the operation part 2, is drawer-type, is provided with a guide rail, is telescopic in the horizontal direction, and is distributed in a cross-shaped mode by taking the central locator 4 as the center. But the flexible distance of telescopic boom is accurate volume, uses the flexible buckle of fixed length to measure. The module fixing groove 6 is a non-movable and non-rotatable fixing groove on the telescopic arm 5, and is specifically a magnetic attraction groove, and the main purpose of the module fixing groove is to fix the positioning analysis module 9, so that the positioning analysis module 9 works at a fixed known position. The leveling tubes 7 and the circular level devices 8 are arranged on the platform of the operation part 3 and used for ensuring that the platform of the operation part 3 is adjusted to a horizontal position by the centering leveling part 2, the number of the leveling tubes 7 is two, the leveling tubes are respectively arranged on the two telescopic arms 5, and one circular level device 8 is arranged; the positioning analysis module 9 is used for measuring the current spatial position of the working part, and the positioning center of the positioning analysis module is positioned on the central axis of the positioning analysis module and passes through the geometric center point of the module fixing groove 6 so as to ensure that the centering and leveling part 2 adjusts the platform of the working part 3 to the horizontal position.

The use steps of the device are as follows:

s1: the equipment is erected on the observation point using the support part 1, and the working part 3 of the equipment is approximately right above the observation point.

S2: the centering and leveling part 2 of the operation device makes the working part 3 horizontal and its center is right above the observation point.

S3: start fix measurement positioning data:

s3-1: as shown in fig. 6, the observation point is required to be a point (X0, Y0) with known spatial coordinate value, the coordinate is set to be a true value, the centering and leveling part 2 of the analysis device is rotated to make the four orthogonally distributed telescopic arms 5 on the platform of the working part 3 point to east, west, south and north, respectively, and the four telescopic arms 5 are adjusted to the position where the geometric center point of the module fixing groove 6 is the same distance Δ r as the center point of the center locator 4, in this embodiment, the value of Δ r is 10; four positioning analysis modules 9 of a global positioning system are respectively erected on four telescopic arms 5 of the instrument, and the four positioning analysis modules 9 of the BDS, the GPS, the GLONASS and the GALILEO are respectively arranged in four positive directions of east, south, west and north of the central locator 4, so that the coordinates of the modules can be called true coordinate values and are respectively:

the central locator 4 is (X0, Y0) is (0, 0);

BDS (X0+ delta r, Y0) is (10, 0);

GPS (X0, Y0-delta r) is (0, -10);

GLONASS (X0- Δ r, Y0) is (-10, 0);

GALILEO (X0, Y0+ delta r) is (0, 10);

s3-2: the processor on the central locator 4 controls the central locating antenna and each locating analysis module 9 to synchronously acquire a plurality of groups of locating data within a period of time, five groups of coordinate information obtained after adjustment are called as measuring coordinate values and are respectively recorded as:

the center locator 4 (Xcenter, Ycenter) is (-0.8, 0.8);

BDS (Xbds, Ybds) is (8.8, 2.8);

GPS (Xgps, Ygps) is (1, -9);

GLONASS (Xglonass, Yglonass) is (-11.5, -2.5);

GALILEO (Xgalileo, Ygalileo) is (-3, 11);

s3-3: and subtracting the true coordinate value from the corresponding point position measurement coordinate value to obtain five groups of data, and obtaining the coordinate deviation value of each measurement coordinate value, namely coordinate precision deviation delta X and delta Y, which are expressed as follows:

the center positioner 4 (Δ Xcenter, Δ Ycenter) = (Xcenter-X0, Ycenter-Y0) = (-0.8, 0.8);

BDS:( ΔXbds, ΔYbds) = ( Xbds - ( X0 +Δr ) , Ybds - Y0 )= (-1.2,2.8)；

GPS: (ΔXgps, ΔYgps) = (Xgps - X0 ,Ygps - ( Y0 - Δr ))= (1,1)；

GLONASS: (ΔXglonass, ΔYglonass) = ( Xglonass - ( X0-Δr) , Yglonass - Y0)= (-1.5,-2.5)；

GALILEO: (ΔXgalileo, ΔYgalileo) = ( Xgalileo - X0 , Ygalileo - ( Y0 + Δr ))= (-3,1)；

s3-4: the accuracy deviation of the center positioner 4 can be considered as an unavoidable system error caused by an instrument erection error, a centering leveling error, a point location movement error, and the like. The accuracy deviation of the central locator 4 is corrected to the accuracy deviation distance value of each positioning analysis module in a distance mode, so that the final accuracy deviation distance Δ D of each system can be obtained, and is represented as:

ΔD=(ΔXcenter, ΔYcenter) =√((ΔXcenter, ΔYcenter) ²)=1.1314；

ΔDbds=√((ΔXbds, ΔYbds) ²)-ΔD= 3.0463 - 1.1314 = 1.9149；

ΔDgps=√((ΔXgps, ΔYgps) ²)-ΔD=1.0000 - 1.1314 = -0.1314；

ΔDglonass=√((ΔXglonass ΔYglonass) ²)-ΔD=2.9154 - 1.1314 = 1.7840；

ΔDgalileo=√((ΔXgalileo, ΔYgalileo) ²)-ΔD=3.1623 -1.1314 = 2.0309；

s3-5: and comparing the delta D values of the systems to obtain the precision deviation distance between the systems at the current measurement point.

Claims (5)

1. A multipurpose space positioning information precision contrast analysis device comprises a support part and a centering flattening part; and an operation part; the method is characterized in that:

the supporting part is a forced centering device;

the centering leveling part is a horizontal rotating platform and is supported by a supporting part, and the rotating center is an equipment central axis;

the operation part is a platform which is arranged on the centering leveling part, and the platform is provided with at least one telescopic arm, at least one circular level and a central locator; the telescopic arm is provided with at least one leveling pipe; the module fixing grooves are arranged at two ends of the telescopic arm; installing a positioning analysis module on a module fixing groove; the central locator is deployed in the center of the operating part platform and comprises a high-precision positioning antenna, a central processing unit and a memory;

the positioning antenna is positioned on the axis of the equipment.

2. The multipurpose apparatus for spatial orientation information accuracy contrast analysis according to claim 1, wherein said support comprises a tripod or a cement pier.

3. The multipurpose apparatus for spatial orientation information accuracy contrast analysis according to claim 1, wherein the telescopic arm is in the form of a drawer with a guide rail, can be extended and retracted in a horizontal direction, and is radially arranged on the working section platform with the center positioner as a center.

4. The multipurpose equipment for the precision contrast analysis of the spatial orientation information according to claim 1, wherein the telescopic arm is one and is arranged in a shape of a Chinese character 'yi'; or two, arranged in a cross shape; or four, arranged in a shape of a Chinese character 'mi'.

5. The multipurpose equipment for the precision-contrast analysis of the spatial orientation information according to claim 1, wherein the fixing groove is a thread groove, a locking groove, a mortise and tenon groove or a magnetic groove.

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