CN202837549U - Embedded GPS receiver - Google Patents
Embedded GPS receiver Download PDFInfo
- Publication number
- CN202837549U CN202837549U CN 201220450542 CN201220450542U CN202837549U CN 202837549 U CN202837549 U CN 202837549U CN 201220450542 CN201220450542 CN 201220450542 CN 201220450542 U CN201220450542 U CN 201220450542U CN 202837549 U CN202837549 U CN 202837549U
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- signal
- frequency
- signalling channel
- gps receiver
- microprocessor
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- Expired - Fee Related
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model relates to the field of a GPS technology and provides an embedded GPS receiver. The purpose is to provide the GPS receiver, wherein the volume is small, the weight is light, power consumption is low, and cost is low. The embedded GPS receiver comprises a signal receiving unit, a signal frequency conversion unit, a signal channel, a microprocessor and a memory unit. The signal receiving unit, the signal frequency conversion unit, the signal channel, the microprocessor and the memory unit are connected in sequence, and the memory unit is also connected with the signal channel. The embedded GPS receiver is applied as a GPS positioning receiver.
Description
Technical field
The utility model relates to the GPS technical field, and a kind of Embedded GPS receiver is provided.
Background technology
As a kind of satellite navigation system of maturation, GPS has that performance is good, precision is high, uses wide characteristics, is most widely used navigation positioning system up to now.Along with updating of GPS, hardware and software constantly perfect, its application is constantly developing, at present the industry-by-industry of extend over the entire globe every country.And along with the popularizing of GPS location technology, GPS receiver number of users begins to increase considerably, and has evoked the exploitation of many countries, the upsurge of applying GPS receiver, and each state is all at all types of GPS receiver of research and production.It is little to volume, and is lightweight, low in energy consumption, the future development that price is low.
The utility model content
The purpose of this utility model is to provide a kind of volume little, lightweight, low in energy consumption, the Embedded GPS receiver that price is low.
The utility model is by the following technical solutions to achieve these goals:
A kind of Embedded GPS receiver, it is characterized in that: comprise signal receiving unit, signal frequency conversion unit, signalling channel, microprocessor, storage unit, described signal receiving unit, signal frequency conversion unit, signalling channel, microprocessor, storage unit are linked in sequence, and described storage unit also is connected with signalling channel.
In the such scheme, described signal receiving unit comprises antenna and prime amplifier, and described antenna is connected with prime amplifier, and described prime amplifier connects the signal frequency conversion unit.
In the such scheme, described signal frequency conversion unit comprises reference signal source module, frequency synthesis module, frequency translation module, described reference signal source module, frequency synthesis module, frequency translation module are linked in sequence, described frequency synthesis module provides the dominant frequency clock for signalling channel, described frequency translation module provides intermediate-freuqncy signal and lockin signal for signalling channel, and signalling channel provides sampled signal for frequency translation module.
In the such scheme, described microprocessor provides control signal for signalling channel.
The utlity model has following beneficial effect:
The utility model adopts damascene structures, greatly reduces the cost of GPS receiver, satisfies some special applications long river body is long-pending to receiving, the demand of power consumption etc.
Description of drawings
Fig. 1 is the utility model system block diagram.
Embodiment
The below is described further the utility model:
A kind of Embedded GPS receiver, it is characterized in that: comprise signal receiving unit, signal frequency conversion unit, signalling channel, microprocessor, storage unit, described signal receiving unit, signal frequency conversion unit, signalling channel, microprocessor, storage unit are linked in sequence, and described storage unit also is connected with signalling channel.
In the such scheme, described signal receiving unit comprises antenna and prime amplifier, and described antenna is connected with prime amplifier, and described prime amplifier connects the signal frequency conversion unit.
In the such scheme, described signal frequency conversion unit comprises reference signal source module, frequency synthesis module, frequency translation module, described reference signal source module, frequency synthesis module, frequency translation module are linked in sequence, described frequency synthesis module provides the dominant frequency clock for signalling channel, described frequency translation module provides intermediate-freuqncy signal and lockin signal for signalling channel, and signalling channel provides sampled signal for frequency translation module.
In the such scheme, described microprocessor provides control signal for signalling channel.
Signal receiving unit: major function is to receive mandarin duck satellite enzyme navigation signal, and this unit mainly is comprised of antenna and low noise amplifier.
Signalling channel: receive two bit data streams that frequency converter produces, it is carried out demodulation, despreading, obtains navigation message information.And microprocessor is controlled signalling channel, finishes the reading of signalling channel data, judgement, computing, to running parameter setting of itself etc.
Be the signal frequency conversion unit: reference frequency oscillation source wherein provides clock and frequency reference for the GPS receiver.Its output road produces local frequency and clock signal of system toward frequency synthesizer; Then one or more local frequency signals and radiofrequency signal are carried out mixing, finish radiofrequency signal (RF l575.42MHz) to the conversion of intermediate-freuqncy signal (IF 4.039MHZ), simultaneously intermediate-freuqncy signal is amplified, (5.714MHz) samples to this intermediate-freuqncy signal by sampled signal, obtain final digital medium-frequency signal (1.405MHZ), represent this digital intermediate frequency signal with SIGN and MAG, this signal is exactly the input signal of digital correlator.So that follow-up digitized processing.
Microprocessing unit: this part is exactly microprocessor unit, and it is controlled signalling channel, finishes to the reading of signalling channel data, judgement, computing, to work such as itself running parameter settings.
Microprocessor unit: receive the navigation message from signalling channel output, therefrom extract navigation data and it is carried out calculating after the respective handling, so that navigation or other services to be provided.This shows, the performance of microprocessor unit has vital impact to the performance of GPS receiver complete machine.Microprocessor performance is higher, and GPS receiver location is faster, more is suitable for practical application.
Storage unit: the GPS receiver provides location, navigation or other services for the user.These services need by realizing behind the relevant application program processing navigation data; Therefore in the GPS receiver, need to have relevant data and the working procedure of memory stores of certain capacity.
Claims (2)
1. Embedded GPS receiver, it is characterized in that: comprise signal receiving unit, the signal frequency conversion unit, signalling channel, microprocessor, storage unit, described signal receiving unit, the signal frequency conversion unit, signalling channel, microprocessor, storage unit is linked in sequence, described storage unit also is connected with signalling channel, described signal receiving unit comprises antenna and prime amplifier, described antenna is connected with prime amplifier, described prime amplifier connects the signal frequency conversion unit, described signal frequency conversion unit comprises the reference signal source module, the frequency synthesis module, frequency translation module, described reference signal source module, the frequency synthesis module, frequency translation module is linked in sequence, described frequency synthesis module provides the dominant frequency clock for signalling channel, described frequency translation module provides intermediate-freuqncy signal and lockin signal for signalling channel, and signalling channel provides sampled signal for frequency translation module.
2. a kind of Embedded GPS receiver according to claim 1, it is characterized in that: described microprocessor provides control signal for signalling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450542 CN202837549U (en) | 2012-09-06 | 2012-09-06 | Embedded GPS receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450542 CN202837549U (en) | 2012-09-06 | 2012-09-06 | Embedded GPS receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837549U true CN202837549U (en) | 2013-03-27 |
Family
ID=47949225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450542 Expired - Fee Related CN202837549U (en) | 2012-09-06 | 2012-09-06 | Embedded GPS receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698772A (en) * | 2013-11-27 | 2014-04-02 | 健富塑胶五金制品（东莞）有限公司 | GPS signal receiving system |
| CN107525506A (en) * | 2017-09-29 | 2017-12-29 | 利辛县雨若信息科技有限公司 | A kind of automobile connection journey navigation system based on guiding combination pattern |
-
2012
- 2012-09-06 CN CN 201220450542 patent/CN202837549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698772A (en) * | 2013-11-27 | 2014-04-02 | 健富塑胶五金制品（东莞）有限公司 | GPS signal receiving system |
| CN107525506A (en) * | 2017-09-29 | 2017-12-29 | 利辛县雨若信息科技有限公司 | A kind of automobile connection journey navigation system based on guiding combination pattern |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130906 |