CN103323857A - Omnidirectional vector rod receiver for indoor GPS - Google Patents

Abstract

The invention provides an omnidirectional vector rod receiver for an indoor GPS. The omnidirectional vector rod receiver comprises a vector rod base body, a sensitising unit and a probe measuring head, wherein the sensitising unit is formed by three groups of photosensitive units, each group comprises two photosensitive units, and centers of the six photosensitive units are in the axis of the vector rod base body; three groups of rectangular grooves are formed in the vector rod base body every other 120 degrees in the circumferential direction and in a finish machining mode on the basis of a helical line, the three groups of photosensitive units are correspondingly arranged in the three groups of rectangular grooves, and reception angles of the photosensitive units are +/-60 degrees; a groove is formed in the vector rod base body, and a communication line used for being connected with the photosensitive units in the sensitising unit is arranged in the groove; the probe measuring head is installed at the front end of the vector rod base body through a fixing bolt; a glass protective cover wraps the vector rod base body and the sensitising unit. The omnidirectional vector rod receiver achieves omnidirectional reception of base station signals of the indoor GPS, is good in anti-interference performance, and improves measurement accuracy, measuring efficiency and an application range of the indoor GPS.

Description

A kind of omnidirectional's vector rod receiver for indoor GPS

Technical field

The present invention relates to a kind of omnidirectional's vector rod receiver for indoor GPS, be mainly used in the digitized measurement of aircraft surfaces point, belong to aeronautical manufacture engineering/aircraft mounting technology field.

Background technology

Present generation aircraft requires lightweight, economy, long-life, high reliability and rapid development, and aircraft manufacturing, installation have been proposed higher accuracy requirement, and wherein the aircraft components assembly precision has determined the final mass of aircraft to a great extent.

Traditional aircraft components assembling main dependence frock and technological compensa tion guarantee the coordination between the parts, rely on the equipments such as loft model, optical instrument to detect assembly quality.These method low precisions, efficient are low, can not adapt to the demand of present generation aircraft development.The indoor GPS measuring system (also claiming iGPS) that external digitizing aircraft assembling line adopts, it is develop on the basis of GPS a kind of for the measurement in solution large scale space and the measurement and positioning system of orientation problem, has the advantages such as anti-interference is good, once demarcation is repeatedly used, measurement range is large, precision is high, multitask is measured simultaneously.At present, in F-35 forebody and airfoil member assembling, Boeing's 787 type passenger plane general assemblies and the boring of European Air Passenger wing, owing to utilizing the high-precision measurement of indoor GPS, control and analytic system, therefore significantly improved efficiency of assembling.

At home, the indoor GPS technology still is in the exploratory stage, and the successful Application that has no correlation technique is reported, especially how in digitizing flexible assemble production line (workshop) scope, set up unified measurement and coordinate benchmark, realize digital quantity coordination and the Positioning Precision Control of aircraft components assembling between different station, carry out the multistation parallel monitoring, and improve measuring accuracy and efficient is to need the key issue that breaks through and solve badly.

Typical indoor GPS measuring system mainly contains three parts and forms: indoor GPS transmitter base station, receiver and data communication network.Receiver is main two kinds of cylindrical receiver, the spherical receivers that divide at present, are single collector.Cylindrical receiver processing cost is low, but it is little to accept angle, and spherical receiver processing cost is slightly high, and the more cylindrical receiver of receiving angle is large.Cylindrical receiver and spherical receiver all can only be used for the measurement of fixed hole position, can't finish the measurement of surface point.

Summary of the invention

The purpose of this invention is to provide a kind of omnidirectional's vector rod receiver for indoor GPS, realized the comprehensive reception of indoor GPS base station signal, anti-interference is good, has improved measuring accuracy, measurement efficient and the range of application of indoor GPS.

Technical scheme of the present invention: a kind of omnidirectional's vector rod receiver for indoor GPS, comprise vector rod matrix, photosensitive unit, probe gauge head, glass protecting cover and signal wire interface, wherein photosensitive unit is comprised of three groups of photosensitive units, every group of photosensitive unit comprises two, on the axis that is centered close to vector rod matrix of six photosensitive units, error is less than 3 μ m; Along circumferentially every 120 ° and be provided with three groups of rectangular recess by helix finishing, every group of rectangular recess comprises two on vector rod matrix, three groups of photosensitive unit correspondences place in three groups of rectangular recess and the receiving angle of every group of photosensitive unit is ± and 60 °; Inside at vector rod matrix is provided with groove, is provided with in the groove for the communication line that connects each photosensitive unit of photosensitive unit, and each photosensitive unit is connected with signal wire interface by communication line respectively, and signal wire interface is connected with the indoor GPS primary control box; The probe gauge head is installed in the front end of vector rod matrix by set bolt, the tip of probe gauge head is positioned on the axis of vector rod matrix, and error is less than 3 μ m; The glass protecting cover is wrapped in vector rod matrix, photosensitive unit its inside, and is fixed by connecting thread spare.

Described photosensitive unit is circular PIN photodiode, accurately is installed on the vector rod matrix 1, and error is used for receiving the signal of base station less than 3 μ m.

The tip of described probe gauge head is cone point, and adopts the high-abrasive material manufacturing.In use, the probe gauge head is most advanced and sophisticated to need periodic calibration with six photosensitive unit relative positions, reduces wearing and tearing to the impact of measuring accuracy with this.

Described glass protecting cover adopts red organic material, and its effect has three: the filtering noxious light of the first, improve Measurement sensibility; It two is that photosensitive unit is isolated from the outside, and can protect photosensitive unit; It three is can be as the handgrip part of vector rod.

Beneficial effect of the present invention:

1, realized that 360 ° of omnidirectionals receive, Effective Raise indoor GPS measuring accuracy and measure accessibility;

2, realized the measurement of aircraft surfaces point, and not damaged;

3, the probe gauge head is easy to change, install, and easy to connect, service efficiency is high;

4, anti-interference is good, allows disconnected light in the measuring process, has improved the stability of measuring;

5, physical construction is simple, and volume is little, and parts are few, long service life, stable performance, reliable operation.

Description of drawings

Fig. 1 is structural representation of the present invention.

Embodiment

As shown in Figure 1, a kind of omnidirectional's vector rod receiver for indoor GPS, comprise vector rod matrix 1, photosensitive unit 2,probe gauge head 3, glass protecting cover 4 and signal wire interface 6, wherein photosensitive unit 2 is comprised of three groups of photosensitive units, every group of photosensitive unit comprises two, on the axis that is centered close to vector rod matrix 1 of six photosensitive units, error is less than 3 μ m; Along circumferentially every 120 ° and be provided with three groups of rectangular recess by helix finishing, every group of rectangular recess comprises two on vector rod matrix 1, three groups of photosensitive unit correspondences place in three groups of rectangular recess and the receiving angle of every group of photosensitive unit is ± and 60 °; Inside at vector rod matrix 1 is provided with groove, is provided with in the groove for the communication line that connects photosensitive unit 2 each photosensitive unit, and each photosensitive unit is connected with signal wire interface 6 by communication line respectively, and signal wire interface 6 is connected with the indoor GPS primary control box;Probe gauge head 3 is installed in the front end of vector rod matrix 1 by set bolt 7, the tip ofprobe gauge head 3 is positioned on the axis of vector rod matrix 1, and error is less than 3 μ m; Glass protecting cover 4 is wrapped in vector rod matrix 1, photosensitive unit 2 its inside, and is fixed by connecting thread spare 5.Described photosensitive unit 2 adopts circular PIN photodiode, is used for receiving base station signal.The tip of describedprobe gauge head 3 is cone point, and adopts the high-abrasive material manufacturing.Described glass protecting cover 4 adopts red organic material.

During use, first omnidirectional's vector rod receiver is connected with the indoor GPS primary control box by signal wire interface 6.During work, hand-held glass protecting cover 4 touches tip and the tested point ofprobe gauge head 3, can finish surveying work.Higher or when being positioned at other and being difficult to arrive at the tested point of position when the measuring position, be connected with extension rod by connecting thread spare 5, with the expansion measurement range, connecting link length is decided on actual demand.

Claims (4)

1. omnidirectional's vector rod receiver that is used for indoor GPS, it is characterized in that: comprise vector rod matrix (1), photosensitive unit (2), probe gauge head (3), glass protecting cover (4) and signal wire interface (6), wherein photosensitive unit (2) is comprised of three groups of photosensitive units, every group of photosensitive unit comprises two, on the axis that is centered close to vector rod matrix (1) of six photosensitive units, error is less than 3 μ m; Upper every group of rectangular recess comprises two along circumferentially every 120 ° and be provided with three groups of rectangular recess by helix finishing at vector rod matrix (1), three groups of photosensitive unit correspondences place in three groups of rectangular recess and the receiving angle of every group of photosensitive unit is ± and 60 °; Inside at vector rod matrix (1) is provided with groove, be provided with in the groove for the communication line that connects each photosensitive unit of photosensitive unit (2), each photosensitive unit is connected with signal wire interface (6) by communication line respectively, and signal wire interface (6) is connected with the indoor GPS primary control box; Probe gauge head (3) is installed in the front end of vector rod matrix (1) by set bolt (7), the tip of probe gauge head (3) is positioned on the axis of vector rod matrix (1), and error is less than 3 μ m; Glass protecting cover (4) is wrapped in vector rod matrix (1), photosensitive unit (2) its inside, and is fixed by connecting thread spare (5).

2. a kind of omnidirectional vector rod receiver for indoor GPS as claimed in claim 1, it is characterized in that: described photosensitive unit (2) adopts circular PIN photodiode.

3. a kind of omnidirectional vector rod receiver for indoor GPS as claimed in claim 1, it is characterized in that: the tip of described probe gauge head (3) is cone point, and adopts the high-abrasive material manufacturing.

4. a kind of omnidirectional vector rod receiver for indoor GPS as claimed in claim 1, it is characterized in that: described glass protecting cover (4) adopts red organic material.

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