CN206876885U

CN206876885U - A kind of high-precision difference GPS test fixtures

Info

Publication number: CN206876885U
Application number: CN201720800302.6U
Authority: CN
Inventors: 汪进南; 郭亚南; 冯宗磊; 李文雄
Original assignee: Changshu Kunlun Intelligent Technology Co Ltd
Current assignee: Changshu Kunlun Intelligent Technology Co Ltd
Priority date: 2017-07-04
Filing date: 2017-07-04
Publication date: 2018-01-12
Anticipated expiration: 2027-07-04

Abstract

The utility model provides a kind of high-precision difference GPS test fixtures, including sliding platform assembly, the sliding platform assembly includes sliding antenna holder and symmetrically arranged first slide-and-guide bar and the second slide-and-guide bar, the both ends for sliding antenna holder are movably connected with the first slide-and-guide bar and the second slide-and-guide bar, the slip antenna holder is provided with GPS mushroom head antennas, identical shift scale is respectively equipped with the first slide-and-guide bar and the second slide-and-guide bar, balance bracket is additionally provided with the sliding platform assembly.The utility model convenient test, simply, do not influenceed by weather and surrounding environment, can effectively detect the position error of differential GPS.

Description

A kind of high-precision difference GPS test fixtures

Technical field

The utility model belongs to GPS technical field of measurement and test, and in particular to a kind of high-precision difference GPS test fixtures.

Background technology

Unmanned intelligent vehicle is positioned by GPS, is an important ring to GPS location test, at present all in R＆D process It is that gps antenna is arranged on special test carriage, is tested out of doors, it is very inconvenient.Because high-precision difference GPS's Error is that Centimeter Level is other, if with special automotive test, GPS error can not be measured, because automobile somewhat movement is all Calculated with meter Dan Wei error.

Unmanned is all at present an emerging project in the whole world, and many technologies are in research and development, high-precision Differential GPS is that location navigation is one of important technology, is all at present mushroom head antenna to be fixed on special survey to differential GPS In test run, cause test result to be forbidden, special test segment is needed additionally, due to test, is influenceed by weather and surrounding environment It is very big, and need at least five people cooperation just to implement.

Existing assignment test needs to test true one, car, special test driver is equipped with, because inner space of vehicle has Limit, intelligence test data terminal needs special support to fix in the car, and automobile is in the process of walking, due to road surface not It is flat to cause automobile bumpiness, cause to receive data inaccuracy.

Utility model content

In order to overcome above mentioned problem, the purpose of this utility model is to provide a kind of high-precision difference GPS test fixtures, test It is convenient, simply, do not influenceed by weather and surrounding environment, can effectively detect the position error of differential GPS.

The utility model provides following technical scheme：

A kind of high-precision difference GPS test fixtures, including sliding platform assembly, the sliding platform assembly include sliding day Line bracket and symmetrically arranged first slide-and-guide bar and the second slide-and-guide bar, the both ends difference for sliding antenna holder The first slide-and-guide bar and the second slide-and-guide bar are flexibly connected, the slip antenna holder is provided with GPS mushrooms Identical shift scale, the cunning are respectively equipped with previous day line, the first slide-and-guide bar and the second slide-and-guide bar Balance bracket is additionally provided with moving platform assembly.

Preferably, the slip antenna holder both ends are respectively equipped with limited screw, the first slide-and-guide bar and described Limited screw guide groove is respectively equipped with second slide-and-guide bar, the limited screw is connected on the limited screw guide groove, real Now slide measurement moving process of the antenna holder on slide-and-guide bar.

Preferably, relative inner further respectively has cunning between the first slide-and-guide bar and the second slide-and-guide bar Dynamic antenna holder guide groove, the slip antenna holder are movably arranged in the slip antenna holder guide groove, realize the slip Slip of the antenna holder in the slip antenna guide groove.

Preferably, the sliding platform assembly also includes bottom fagging, and the bottom fagging both sides are arranged with described One slide-and-guide bar and the second slide-and-guide bar, keep the stability of sliding platform assembly.

Preferably, the bottom fagging is provided with tray deck, and the tray deck is provided with support installation screw, the balance Support is installed screw by the support and is fixedly mounted on the tray deck, sliding platform assembly described in balanced support.

Preferably, the tray deck is provided with support and turns to scale, for observing the turned position of sliding platform assembly.

Preferably, the balance bracket lifts A-frame for vertical rotate, and enables sliding platform assembly held stationary Rotation can be freely lifted simultaneously.

The beneficial effects of the utility model are：Sliding platform assembly and balance bracket are integrally provided with, realizes that transverse shifting is surveyed Turned position can be measured while amount, realizes the GPS differential testings of three-dimensional；Overall structure is simple, installation easy to operate, and not By weather and surrounding environment influence, the error of differential GPS is effectively detected.

Brief description of the drawings

Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：

Fig. 1 is the utility model general structure schematic diagram；

Fig. 2 is the utility model positive structure diagram；

Fig. 3 is the utility model overlooking the structure diagram；

Fig. 4 is part A structural representation in Fig. 3；

Fig. 5 is sliding platform assembly side structure schematic view；

In figure mark for：1. sliding platform assembly；11. the first slide-and-guide bar；12. the second slide-and-guide bar；101. move Dynamic scale；102. limited screw guide groove；103. bottom fagging；104. slide antenna holder guide groove；105. support installs screw；2. Slide antenna holder；201. limited screw；3.GPS mushroom head antennas；4. tray deck；401. supports turn to scale；5. balance branch Frame.

Embodiment

As Figure 1-Figure 4, a kind of high-precision difference GPS test fixtures, including sliding platform assembly 1, sliding platform is total Include sliding antenna holder 2 and symmetrically arranged first slide-and-guide bar 11 and the second slide-and-guide bar 12 into 1, slide antenna The both ends of support 2 are movably connected with the first slide-and-guide bar 11 and the second slide-and-guide bar 12, slide antenna holder 2 and are provided with Identical shift scale 101 is respectively equipped with GPS mushroom heads antenna 3, the first slide-and-guide bar 11 and the second slide-and-guide bar 12, Balance bracket 5 is additionally provided with sliding platform assembly 1.

As Figure 1-Figure 4, the both ends of antenna holder 2 are slided and is respectively equipped with limited screw 201, the He of the first slide-and-guide bar 11 Limited screw guide groove 102 is respectively equipped with second slide-and-guide bar 12, limited screw 201 is connected on limited screw guide groove 102, Realize the measurement moving process for sliding antenna holder 2 on slide-and-guide bar.

As Figure 1-Figure 5, relative inner is also set respectively between the first slide-and-guide bar 11 and the second slide-and-guide bar 12 Have and slide antenna holder guide groove 104, slide antenna holder 2 and be movably arranged in slip antenna holder guide groove 104, realize and slide day Line bracket 2 is sliding the slip in antenna guide groove 104.Further, sliding platform assembly 1 also includes bottom fagging 103, bottom The both sides of fagging 103 are arranged with the first slide-and-guide bar 11 and the second slide-and-guide bar 12, keep the stabilization of sliding platform assembly 1 Property.Bottom fagging 103 is provided with tray deck 4, and tray deck 4 is provided with support installation screw 105, and balance bracket 5 is pacified by support Dress screw 105 is fixedly mounted on tray deck 4, balanced support sliding platform assembly 1.Tray deck 4 is provided with support and turns to scale 401, for observing the turned position of sliding platform assembly 1.Further, balance bracket 5 lifts triangle branch for vertical rotate Frame, enable that while sliding platform 1 held stationary of assembly rotation can be freely lifted.

As Figure 1-Figure 5, a kind of high-precision difference GPS test fixtures in use, two GPS mushroom previous day Line 3 is fixed on the slip antenna holder 2 at the both ends of sliding platform assembly 1, the magnet and cunning that GPS mushroom heads antenna 3 passes through base Dynamic antenna holder 2 is mutually held, and is promoted and is slided antenna holder 2 and horizontally slip, because the first slide-and-guide bar 11 of both sides and the Shift scale 101 is carved with two slide-and-guide bars 12, the specific distance that GPS mushroom antennas 3 slide can intuitively be read out very much Come, be then compared with GPS location data actual on terminal display, it is possible to intuitively reflect that very much differential GPS is determined Whether position is accurate, and whether GPS location tester effectively can accurately carry out differential testing.

As Figure 1-Figure 5, a kind of application method of high-precision difference GPS test fixtures, comprises the following steps：

S1：GPS mushroom heads antenna 3, which is located at, to be slided on antenna holder 2, and GPS mushroom heads antenna 3 is by sliding antenna holder 2 Progress is horizontal and slides back and forth, and carrying out frame by balance bracket 5 highly adjusts and move up and down；

S2：Identical shift scale is labeled with first slide-and-guide bar 11 and the second slide-and-guide bar 12, when GPS mushrooms When previous day line 3 moves, the data of displacement just can be accurately read；

S3：GPS mushroom heads are wireless 3 to be connected with intelligent data terminal collecting cassette, and intelligent data terminal collecting cassette, which coordinates, to be slided Platform assembly 1, the data of the displacement in S2 are transferred to Intelligent test terminal box by GPS mushroom heads antenna 3, intelligence test is whole End box carries out difference processing to the data of reception and is shown on the display of Intelligent test terminal box.

Further, GPS mushroom heads antenna 3 is fixed on first slide-and-guide of the right and left by sliding antenna holder 2 On the slide-and-guide bar 12 of bar 11 and second, crossbeam is marked with scale, and GPS mushroom heads antenna 3 can slide on slide-and-guide bar, It is exactly the direction of y-axis, whole slide-and-guide bar can horizontally slip on the cunning of both sides is dry with fixed gps antenna mushroom head 3 X-direction slip is done, height can be adjusted to do the displacement of Z axis by lifting tripod.GPS test fixtures do not have to test environment It is required that do not influenceed by road surface slippery degree, because anywhere whole test fixture can be fixed.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, although ginseng The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in Within new protection domain.

Claims

A kind of 1. high-precision difference GPS test fixtures, it is characterised in that including sliding platform assembly, the sliding platform assembly Including sliding antenna holder and symmetrically arranged first slide-and-guide bar and the second slide-and-guide bar, the slip antenna holder Both ends be movably connected with the first slide-and-guide bar and the second slide-and-guide bar, set on the slip antenna holder There are GPS mushroom head antennas, identical movement is respectively equipped with the first slide-and-guide bar and the second slide-and-guide bar and is carved Spend, balance bracket is additionally provided with the sliding platform assembly.
A kind of 2. high-precision difference GPS test fixtures according to claim 1, it is characterised in that the slip antenna branch Frame both ends are respectively equipped with limited screw, and spacing spiral shell is respectively equipped with the first slide-and-guide bar and the second slide-and-guide bar Silk guide groove, the limited screw are connected on the limited screw guide groove.
3. a kind of high-precision difference GPS test fixtures according to claim 1, it is characterised in that first slip is led Further respectively had to relative inner between bar and the second slide-and-guide bar and slide antenna holder guide groove, the slip antenna branch Frame is movably arranged in the slip antenna holder guide groove.
4. a kind of high-precision difference GPS test fixtures according to claim 1, it is characterised in that the sliding platform is total Into bottom fagging is also included, the bottom fagging both sides are arranged with the first slide-and-guide bar and second slide-and-guide Bar.
5. a kind of high-precision difference GPS test fixtures according to claim 4, it is characterised in that on the bottom fagging Provided with tray deck, the tray deck is provided with support installation screw, and the balance bracket is installed screw by the support and fixed On the tray deck.
6. a kind of high-precision difference GPS test fixtures according to claim 5, it is characterised in that set on the tray deck There is support to turn to scale.
7. a kind of high-precision difference GPS test fixtures according to claim 1, it is characterised in that the balance bracket is It is vertical to rotate lifting A-frame.