CN106569238A - Intermediate-frequency data acquisition and network transmission system for GPS - Google Patents

Intermediate-frequency data acquisition and network transmission system for GPS Download PDF

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Publication number
CN106569238A
CN106569238A CN201610958887.4A CN201610958887A CN106569238A CN 106569238 A CN106569238 A CN 106569238A CN 201610958887 A CN201610958887 A CN 201610958887A CN 106569238 A CN106569238 A CN 106569238A
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CN
China
Prior art keywords
gps
intermediate frequency
intermediate
unit
data
Prior art date
Application number
CN201610958887.4A
Other languages
Chinese (zh)
Inventor
张介飞
Original Assignee
合肥微梦软件技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 合肥微梦软件技术有限公司 filed Critical 合肥微梦软件技术有限公司
Priority to CN201610958887.4A priority Critical patent/CN106569238A/en
Publication of CN106569238A publication Critical patent/CN106569238A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system

Abstract

The invention discloses an intermediate-frequency data acquisition and network transmission system for GPS. The system comprises an antenna unit, a radio-frequency unit, a GPS intermediate-frequency data acquisition and network transmission unit, and a local area network. The antenna unit receives a GPS signal, which is transmitted to the GPS intermediate-frequency data acquisition and network transmission unit after being processed by the radio-frequency unit. The GPS intermediate-frequency data acquisition and network transmission unit transmits data to the local area network. A scheduling host in the local area network transmits and distributes the data, and processes the data in a distributed collaborative way. Through a way of data acquisition based on FPGA, GPS intermediate-frequency data acquiring, quantifying and caching is realized, and the speed of data transmission is increased. The system has good stability. Different computers which are connected via a communication network and managed and controlled by the same control system complete an information processing task collaboratively, and thus, the operation efficiency is improved.

Description

One kind is for the collection of GPS intermediate frequency datas and network transmission system

Technical field

The invention belongs to internet works software development technique field, it is more particularly to a kind of for the collection of GPS intermediate frequency datas with Network transmission system.

Background technology

FPGA (Field-Programmable Gate Array), i.e. field programmable gate array, it be PAL, The product further developed on the basis of the programming devices such as GAL, CPLD.FPGA is in general than ASIC (special IC) Speed it is slow, realize that same function is bigger than ASIC circuit area.But they also have the advantages that it is many such as can be fast Rapid-result product, the mistake that can be modified in correction program and less expensive cost.Manufacturer be likely to provide it is cheap still The FPGA of edit capability difference.Because these chips have poor editable ability, the exploitation of these designs is common FPGA on complete, then design is transferred on a chip similar to ASIC.Another method is to use CPLD (Complex Programmable Logic Device, CPLD).

The content of the invention

It is an object of the invention to provide it is a kind of for the collection of GPS intermediate frequency datas and network transmission system, by being based on The data acquisition modes of FPGA, realize the collection of GPS intermediate frequency datas, quantify and cache, and improve the speed of data transfer.

The present invention is achieved by the following technical solutions:

The present invention for a kind of for the collection of GPS intermediate frequency datas and network transmission system, including antenna element, radio frequency unit, GPS intermediate frequency datas are gathered and network transmitting unit and LAN;The antenna element receives gps signal by radio frequency unit process After be transferred to GPS intermediate frequency datas collection and network transmitting unit;GPS intermediate frequency datas collection and network transmitting unit are by data Transmit to LAN;Data are transmitted and are distributed by the dispatching host machine in the LAN, and to data distributed collaboration is carried out Process.

Preferably, the antenna element is come in the gps satellite signal transmission of reception using gps antenna, by radio frequency list Unit carries out gain and frequency reducing, obtains the intermediate-freuqncy signal of GPS.

Preferably, the intermediate-freuqncy signal that the GPS intermediate frequency datas collection is collected with network transmitting unit is amplified through intermediate frequency Device carries out gain, sampling and quantifies, and the data after quantization send into LAN.

The invention has the advantages that:

The present invention is realized the collection of GPS intermediate frequency datas, is quantified and cached by the data acquisition modes based on FPGA, is carried The high speed of data transfer, system stability is good, by the way that different computers is coupled together with communication network, in control system Under the same management control of system, collaboration completes information handling task, so as to improve operation efficiency.

Certainly, the arbitrary product for implementing the present invention it is not absolutely required to while reaching all the above advantage.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, use required for describing to embodiment below Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability For the those of ordinary skill of domain, on the premise of not paying creative work, can be attached to obtain others according to these accompanying drawings Figure.

Fig. 1 is that one kind of the present invention is used for the collection of GPS intermediate frequency datas and network transmission system figure.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Refer to shown in Fig. 1, the present invention is gathered and network transmission system for a kind of for GPS intermediate frequency datas, including antenna Unit, radio frequency unit, the collection of GPS intermediate frequency datas and network transmitting unit and LAN;Antenna element receives gps signal by penetrating The collection of GPS intermediate frequency datas and network transmitting unit are transferred to after frequency cell processing;GPS intermediate frequency datas are gathered and network transmitting unit Send data to LAN;Data are transmitted and are distributed by the dispatching host machine in LAN, and to data distributed association is carried out With process.

Wherein, antenna element is come in the gps satellite signal transmission of reception using gps antenna, is carried out by radio frequency unit Gain and frequency reducing, obtain the intermediate-freuqncy signal of GPS.

Wherein, the intermediate-freuqncy signal that the collection of GPS intermediate frequency datas is collected with network transmitting unit is carried out through intermediate frequency amplifier Gain, sampling and quantization, the data after quantization send into LAN.

Specifically transfer process is:Gps antenna is come in the gps satellite signal transmission of reception, Jing 1575.42MHz band logicals Filter filtering and low-noise amplifier are carried out after gain, send into GP2015;Through GP2015 and its peripheral filter device circuit group Into radio frequency unit three down coversions after obtain the GPS analog intermediate frequency signals of 4.309MHz;This GPS analog intermediate frequency signal is in Jing Cross after Intermediate frequency amplifier gain and enter AD9433, AD9433 is under the control of FPGA with the sample frequency of 5.714MHz to this GPS Analog intermediate frequency signal is sampled and is quantified, and the data after quantization pass through Ethernet chip after caching and storage LAN91C111 sends into LAN, and distributed collaboration process is carried out to the data for collecting by the PC in LAN.

It should be noted that in said system embodiment, included unit simply carries out drawing according to function logic Point, but above-mentioned division is not limited to, as long as corresponding function can be realized;In addition, each functional unit is concrete Title is also only to facilitate mutually differentiation, is not limited to protection scope of the present invention.

In addition, one of ordinary skill in the art will appreciate that realizing all or part of step in the various embodiments described above method Program be can be by instruct the hardware of correlation to complete, corresponding program can be stored in embodied on computer readable storage and be situated between In matter, described storage medium, such as ROM/RAM, disk or CD.

Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed All of details is described, it is only described specific embodiment also not limit the invention.Obviously, according to the content of this specification, Can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is to preferably explain the present invention Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only Limited by claims and its four corner and equivalent.

Claims (3)

1. a kind of for the collection of GPS intermediate frequency datas and network transmission system, it is characterised in that including antenna element, radio frequency unit, GPS intermediate frequency datas are gathered and network transmitting unit and LAN;
The antenna element is received gps signal and the collection of GPS intermediate frequency datas and network transmission is transferred to after radio frequency unit process Unit;
The GPS intermediate frequency datas collection sends data to LAN with network transmitting unit;
Data are transmitted and are distributed by the dispatching host machine in the LAN, and to data distributed collaboration process is carried out.
2. it is according to claim 1 a kind of for the collection of GPS intermediate frequency datas and network transmission system, it is characterised in that institute State antenna element the gps satellite signal transmission of reception is come in using gps antenna, gain and frequency reducing carried out by radio frequency unit, Obtain the intermediate-freuqncy signal of GPS.
3. it is according to claim 1 a kind of for the collection of GPS intermediate frequency datas and network transmission system, it is characterised in that institute State intermediate-freuqncy signal that the collection of GPS intermediate frequency datas collected with network transmitting unit through intermediate frequency amplifier carry out gain, sampling and Quantify, the data after quantization send into LAN.
CN201610958887.4A 2016-11-03 2016-11-03 Intermediate-frequency data acquisition and network transmission system for GPS CN106569238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610958887.4A CN106569238A (en) 2016-11-03 2016-11-03 Intermediate-frequency data acquisition and network transmission system for GPS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610958887.4A CN106569238A (en) 2016-11-03 2016-11-03 Intermediate-frequency data acquisition and network transmission system for GPS

Publications (1)

Publication Number Publication Date
CN106569238A true CN106569238A (en) 2017-04-19

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CN201610958887.4A CN106569238A (en) 2016-11-03 2016-11-03 Intermediate-frequency data acquisition and network transmission system for GPS

Country Status (1)

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CN (1) CN106569238A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101552691A (en) * 2008-04-03 2009-10-07 中兴通讯股份有限公司 Data processing system
CN101576613A (en) * 2009-05-25 2009-11-11 东南大学 GPS intermediate-frequency signal sampler
CN102724121A (en) * 2012-06-20 2012-10-10 上海琥智数码科技有限公司 Distributed network data transmission method for LAN
CN104348861A (en) * 2013-07-31 2015-02-11 腾讯科技(深圳)有限公司 A method, user equipment and system for data transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101552691A (en) * 2008-04-03 2009-10-07 中兴通讯股份有限公司 Data processing system
CN101576613A (en) * 2009-05-25 2009-11-11 东南大学 GPS intermediate-frequency signal sampler
CN102724121A (en) * 2012-06-20 2012-10-10 上海琥智数码科技有限公司 Distributed network data transmission method for LAN
CN104348861A (en) * 2013-07-31 2015-02-11 腾讯科技(深圳)有限公司 A method, user equipment and system for data transmission

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Application publication date: 20170419