CN107193018B - Using method of high-precision differential GPS test fixture - Google Patents
Using method of high-precision differential GPS test fixture Download PDFInfo
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- CN107193018B CN107193018B CN201710538388.4A CN201710538388A CN107193018B CN 107193018 B CN107193018 B CN 107193018B CN 201710538388 A CN201710538388 A CN 201710538388A CN 107193018 B CN107193018 B CN 107193018B
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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
- G01S19/13—Receivers
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
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- 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
The invention provides a use method of a high-precision differential GPS test fixture, which comprises a sliding platform assembly, wherein the sliding platform assembly comprises a sliding antenna bracket, a first sliding guide rod and a second sliding guide rod which are symmetrically arranged, two ends of the sliding antenna bracket are respectively and movably connected with the first sliding guide rod and the second sliding guide rod, a GPS mushroom head antenna is arranged on the sliding antenna bracket, the first sliding guide rod and the second sliding guide rod are respectively provided with the same moving scale, and a balance bracket is also arranged on the sliding platform assembly. The invention has the advantages of convenient and simple test, no influence of weather and surrounding environment, and can effectively detect the positioning error of the differential GPS.
Description
Technical Field
The invention belongs to the technical field of GPS (Global positioning System) testing, and particularly relates to a use method of a high-precision differential GPS testing clamp.
Background
The unmanned intelligent vehicle is positioned by a GPS, and is an important ring for GPS positioning test in the research and development process, and the GPS antenna is installed on a special test vehicle at present, so that the test is carried out outdoors, and the intelligent vehicle is very inconvenient. Because the error of the high-precision differential GPS is in the centimeter level, if a special automobile test is used, the error of the GPS cannot be measured, because the slight movement of the automobile is measured by the error in meters.
Unmanned is an emerging project all over the world, many technologies are in research and development, high-precision differential GPS is one of important technologies for positioning and navigation, and the differential GPS is used for fixing mushroom head antennas on special test vehicles, so that test results are inaccurate, and in addition, because a special test road section is required for testing, the test is greatly affected by weather and surrounding environment, and at least five persons are required to cooperate to implement the test.
The existing positioning test needs to test a real vehicle and is provided with a special test driver, because the internal space of the vehicle is limited, the intelligent test data terminal needs to be fixed in the vehicle by a special bracket, and in the running process of the vehicle, the vehicle jolts due to the uneven road surface, so that the received data is inaccurate.
Disclosure of Invention
In order to overcome the problems, the invention aims to provide a using method of the high-precision differential GPS test clamp, which is convenient and simple to test, is not influenced by weather and surrounding environment, and can effectively detect the positioning error of the differential GPS.
The invention provides the following technical scheme:
the utility model provides a high accuracy difference GPS test fixture, includes the slide platform assembly, the slide platform assembly includes first slip guide bar and the second slip guide bar that slip antenna support and symmetry set up, the both ends of slip antenna support swing joint respectively first slip guide bar with the second slip guide bar, be equipped with GPS mushroom head antenna on the slip antenna support, first slip guide bar with be equipped with the same removal scale on the second slip guide bar respectively, still be equipped with balanced support on the slide platform assembly.
Preferably, the two ends of the sliding antenna support are respectively provided with a limit screw, the first sliding guide rod and the second sliding guide rod are respectively provided with a limit screw guide groove, and the limit screws are clamped on the limit screw guide grooves to realize the measuring and moving process of the sliding antenna support on the sliding guide rods.
Preferably, sliding antenna support guide grooves are further formed in the inner sides of the first sliding guide rod and the second sliding guide rod, and the sliding antenna support is movably mounted in the sliding antenna support guide grooves to achieve sliding of the sliding antenna support in the sliding antenna guide grooves.
Preferably, the sliding platform assembly further comprises a bottom supporting plate, and the first sliding guide rod and the second sliding guide rod are symmetrically arranged on two sides of the bottom supporting plate, so that stability of the sliding platform assembly is kept.
Preferably, the bottom supporting plate is provided with a bracket disc, the bracket disc is provided with a bracket mounting screw, the balance bracket is fixedly mounted on the bracket disc through the bracket mounting screw, and the sliding platform assembly is supported in a balance mode.
Preferably, the bracket disc is provided with bracket steering scales for observing the rotation position of the sliding platform assembly.
Preferably, the balance support is a vertically-rotating lifting triangular support, so that the sliding platform assembly can be lifted and rotated freely while being kept stable.
The application method of the high-precision differential GPS test fixture comprises the following steps:
s1: the GPS mushroom head antenna is arranged on the sliding antenna bracket, horizontally and longitudinally slides through the sliding antenna bracket, and is subjected to height adjustment and up-and-down movement through the balance bracket;
s2: the first sliding guide rod and the second sliding guide rod are marked with the same movement scale, and when the GPS mushroom head antenna moves, displacement data can be accurately read out;
s3: the GPS mushroom head antenna is connected with an intelligent data terminal acquisition box, the intelligent data terminal acquisition box is matched with the sliding platform assembly, the displacement data in the step S2 are transmitted to the intelligent test terminal box through the GPS mushroom head antenna, and the intelligent test terminal box performs differential processing on the received data and displays the differential processing on a display of the intelligent test terminal box.
The beneficial effects of the invention are as follows: the sliding platform assembly and the balance bracket are integrally arranged, so that the rotation position can be measured while the transverse movement measurement is realized, and the three-dimensional GPS differential test is realized; the GPS error detecting device is simple in integral structure, easy to operate and install, free of influence of weather and surrounding environment, and capable of effectively detecting errors of the differential GPS.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the general structure of the present invention;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the portion A in FIG. 3;
FIG. 5 is a schematic side elevational view of the sliding platform assembly;
marked in the figure as: 1. a sliding platform assembly; 11. a first sliding guide bar; 12. a second sliding guide bar; 101. moving the scale; 102. a limit screw guide slot; 103. a bottom stay plate; 104. sliding antenna support guide slots; 105. a bracket mounting screw; 2. a sliding antenna support; 201. a limit screw; GPS mushroom head antenna; 4. a support plate; 401. a bracket steering scale; 5. and (5) balancing the bracket.
Detailed Description
As shown in fig. 1-4, a high-precision differential GPS test fixture includes a sliding platform assembly 1, where the sliding platform assembly 1 includes a sliding antenna support 2, and a first sliding guide rod 11 and a second sliding guide rod 12 that are symmetrically arranged, two ends of the sliding antenna support 2 are respectively movably connected with the first sliding guide rod 11 and the second sliding guide rod 12, a GPS mushroom head antenna 3 is disposed on the sliding antenna support 2, the same moving scales 101 are disposed on the first sliding guide rod 11 and the second sliding guide rod 12, and a balance support 5 is also disposed on the sliding platform assembly 1.
As shown in fig. 1-4, two ends of the sliding antenna support 2 are respectively provided with a limit screw 201, the first sliding guide rod 11 and the second sliding guide rod 12 are respectively provided with a limit screw guide slot 102, and the limit screw 201 is clamped on the limit screw guide slot 102, so that the measuring and moving process of the sliding antenna support 2 on the sliding guide rods is realized.
As shown in fig. 1-5, a sliding antenna support guide groove 104 is further provided between the first sliding guide rod 11 and the second sliding guide rod 12 on opposite inner sides, and the sliding antenna support 2 is movably mounted in the sliding antenna support guide groove 104, so that the sliding of the sliding antenna support 2 in the sliding antenna guide groove 104 is realized. Further, the sliding platform assembly 1 further comprises a bottom supporting plate 103, and the first sliding guide rod 11 and the second sliding guide rod 12 are symmetrically arranged on two sides of the bottom supporting plate 103, so that stability of the sliding platform assembly 1 is maintained. The bottom supporting plate 103 is provided with a bracket disc 4, the bracket disc 4 is provided with bracket mounting screws 105, the balance bracket 5 is fixedly mounted on the bracket disc 4 through the bracket mounting screws 105, and the sliding platform assembly 1 is supported in a balance mode. The bracket disc 4 is provided with bracket steering graduations 401 for observing the rotation position of the sliding platform assembly 1. Furthermore, the balance bracket 5 is a vertically rotating lifting triangular bracket, so that the sliding platform assembly 1 can be lifted and rotated freely while being stable.
As shown in fig. 1-5, in the using process of the high-precision differential GPS test fixture, two GPS mushroom head antennas 3 are fixed on the sliding antenna brackets 2 at two ends of the sliding platform assembly 1, the GPS mushroom head antennas 3 are attracted with the sliding antenna brackets 2 through magnets of the base, so as to push the sliding antenna brackets 2 to slide left and right, because the first sliding guide rods 11 and the second sliding guide rods 12 at two sides are carved with moving scales 101, the specific sliding distance of the GPS mushroom antennas 3 can be intuitively read out, and then compared with actual GPS positioning data on a terminal display, whether differential GPS positioning is accurate or not can be intuitively reflected, and whether the GPS positioning test instrument can effectively and accurately perform differential test or not.
As shown in fig. 1 to 5, a method for using a high-precision differential GPS test fixture includes the following steps:
s1: the GPS mushroom head antenna 3 is arranged on the sliding antenna bracket 2, the GPS mushroom head antenna 3 horizontally and forwards and backwards slides through the sliding antenna bracket 2, and the GPS mushroom head antenna 3 is adjusted in height and moves up and down through the balance bracket 5;
s2: the first sliding guide rod 11 and the second sliding guide rod 12 are marked with the same moving scale, and when the GPS mushroom head antenna 3 moves, the displacement data can be accurately read;
s3: the GPS mushroom head antenna 3 is connected with an intelligent data terminal acquisition box, the intelligent data terminal acquisition box is matched with the sliding platform assembly 1, the data of the displacement in the S2 are transmitted to the intelligent test terminal box through the GPS mushroom head antenna 3, and the intelligent test terminal box carries out differential processing on the received data and displays the data on a display of the intelligent test terminal box.
Further, the GPS mushroom head antenna 3 is fixed on the first sliding guide rod 11 and the second sliding guide rod 12 on the left and right sides through the sliding antenna bracket 2, scales are marked on the cross beam, the GPS mushroom head antenna 3 can slide on the sliding guide rod, that is, the y-axis direction, the whole sliding guide rod and the fixed GPS mushroom head antenna 3 can slide left and right on the sliding stems on the two sides in the X-axis direction, and the height can be adjusted through the lifting tripod to make displacement of the Z-axis. The GPS test fixture has no requirement on the test environment and is not affected by the road smoothness, because the whole test fixture can be fixed anywhere.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The using method of the high-precision differential GPS test fixture is characterized by comprising a sliding platform assembly, wherein the sliding platform assembly comprises a sliding antenna bracket, a first sliding guide rod and a second sliding guide rod which are symmetrically arranged, two ends of the sliding antenna bracket are respectively and movably connected with the first sliding guide rod and the second sliding guide rod, a GPS mushroom head antenna is arranged on the sliding antenna bracket, the first sliding guide rod and the second sliding guide rod are respectively provided with the same moving scale, and a balance bracket is also arranged on the sliding platform assembly;
the using method comprises the following steps:
s1: the GPS mushroom head antenna is arranged on the sliding antenna bracket, horizontally and longitudinally slides through the sliding antenna bracket, and is subjected to height adjustment and up-and-down movement through the balance bracket;
s2: the first sliding guide rod and the second sliding guide rod are marked with the same movement scale, and when the GPS mushroom head antenna moves, displacement data can be accurately read out;
s3: the GPS mushroom head antenna is connected with an intelligent data terminal acquisition box, the intelligent data terminal acquisition box is matched with the sliding platform assembly, the displacement data in the step S2 are transmitted to the intelligent test terminal box through the GPS mushroom head antenna, and the intelligent test terminal box performs differential processing on the received data and displays the differential processing on a display of the intelligent test terminal box.
2. The method for using the high-precision differential GPS test fixture according to claim 1, wherein limit screws are respectively arranged at two ends of the sliding antenna support, limit screw guide grooves are respectively arranged on the first sliding guide rod and the second sliding guide rod, and the limit screws are clamped on the limit screw guide grooves.
3. The method of claim 1, wherein sliding antenna support guide slots are further provided on opposite inner sides between the first sliding guide bar and the second sliding guide bar, and the sliding antenna support is movably mounted in the sliding antenna support guide slots.
4. The method of claim 1, wherein the sliding platform assembly further comprises a bottom support plate, and the first sliding guide rod and the second sliding guide rod are symmetrically arranged on two sides of the bottom support plate.
5. The method of claim 4, wherein a bracket tray is provided on the bottom bracket, a bracket mounting screw is provided on the bracket tray, and the balance bracket is fixedly mounted on the bracket tray by the bracket mounting screw.
6. The method of claim 5, wherein the bracket tray is provided with bracket steering graduations.
7. The method of claim 1, wherein the balancing stand is a vertically rotating lifting tripod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538388.4A CN107193018B (en) | 2017-07-04 | 2017-07-04 | Using method of high-precision differential GPS test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538388.4A CN107193018B (en) | 2017-07-04 | 2017-07-04 | Using method of high-precision differential GPS test fixture |
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| Publication Number | Publication Date |
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| CN107193018A CN107193018A (en) | 2017-09-22 |
| CN107193018B true CN107193018B (en) | 2023-06-23 |
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| CN201710538388.4A Active CN107193018B (en) | 2017-07-04 | 2017-07-04 | Using method of high-precision differential GPS test fixture |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865397A (en) * | 2018-08-28 | 2020-03-06 | 航天科工惯性技术有限公司 | Precision testing device and method for GPS equipment |
| CN108955477A (en) * | 2018-09-03 | 2018-12-07 | 上海光和光学制造大丰有限公司 | A kind of high-precision difference GPS test fixture |
| CN109683026B (en) * | 2018-12-29 | 2024-03-29 | 无锡市航鹄精密机械有限公司 | Multi-degree-of-freedom antenna test platform and method thereof |
| CN112677887B (en) * | 2020-12-10 | 2024-02-27 | 武汉朗维科技有限公司 | Vehicle body posture testing equipment and testing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM272245U (en) * | 2005-02-04 | 2005-08-01 | Jonsa Technologies Co Ltd | Compound clipping tool for satellite antenna receiver |
| CN101944648B (en) * | 2009-07-10 | 2013-06-26 | 华为技术有限公司 | Antenna mounting frame |
| CN203690499U (en) * | 2013-12-18 | 2014-07-02 | 捷萌科技股份有限公司 | Horizontal driving device of universal base station antenna |
| KR20230124770A (en) * | 2014-03-13 | 2023-08-25 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Electronic device |
| CN204330828U (en) * | 2015-01-05 | 2015-05-13 | 成都北斗天线工程技术有限公司 | A kind of antenna detection platform |
| CN206876885U (en) * | 2017-07-04 | 2018-01-12 | 常熟昆仑智能科技有限公司 | A kind of high-precision difference GPS test fixtures |
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