CN109425879A - The positioning device of positioning accuracy can be promoted - Google Patents
The positioning device of positioning accuracy can be promoted Download PDFInfo
- Publication number
- CN109425879A CN109425879A CN201710743843.4A CN201710743843A CN109425879A CN 109425879 A CN109425879 A CN 109425879A CN 201710743843 A CN201710743843 A CN 201710743843A CN 109425879 A CN109425879 A CN 109425879A
- Authority
- CN
- China
- Prior art keywords
- signal
- radio
- module
- gps
- frequency communication
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
-
- 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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses the positioning device that can promote positioning accuracy, including signal receiving module, radio-frequency communication module, signal modulation module, microprocessor and power supply, the radio-frequency communication module includes radio frequency chip, radio-frequency filter and crystal oscillator.Wherein, the GPS signal that GPS satellite is sent is converted to electric signal through signal receiving module, down-converted, which is carried out, through radio-frequency communication module again is converted to intermediate-freuqncy signal, demodulation despreading further, which is carried out, through signal modulation module obtains navigation message, data conversion further, which is carried out, through microprocessor obtains navigation data, to realize that GPS is quick, is accurately positioned, simultaneously the present invention have the advantages that simple circuit structure, small in size, low in energy consumption, anti-interference ability and it is overload-resistant, impact capacity is strong, can be used under weak output signal environment.
Description
Technical field
The present invention relates to Furniture manufacturing fields, can specifically promote the positioning device of positioning accuracy.
Background technique
With the development of science and technology, especially the rapid development of communication, space flight and semiconductor technology, GPS system are answered
With also more and more extensive.Entire GPS system is mainly made of navigation satellite, ground monitoring station and user terminal three parts, wherein
User terminal is usually exactly GPS receiver, and positioning is only just able to achieve by GPS receiver on ground.But current GPS receiver
The problem of generally existing volume of device is big, poor anti jamming capability, position inaccurate, is applied to the weak output signals rings such as Furniture manufacturing workshop
The GPS receiver effect in border is also not highly desirable.
Summary of the invention
The purpose of the present invention is to provide the positioning devices that can promote positioning accuracy, solve current GPS receiver volume
Greatly, poor anti jamming capability, position inaccurate, the undesirable problem of weak output signal environmental effect.
The purpose of the present invention is achieved through the following technical solutions: can promote the positioning device of positioning accuracy, including letter
Number receiving module, radio-frequency communication module, signal modulation module, microprocessor and power supply；
The signal receiving module is electrically connected with radio-frequency communication module, for receiving the GPS signal of GPS satellite transmission, and
GPS signal is converted into electric signal by electromagnetic wave signal and is sent to radio-frequency communication module；
The radio-frequency communication module is electrically connected with signal modulation module, the GPS telecommunications for sending to signal receiving module
Number carry out down-converted, obtain GPS intermediate-freuqncy signal be sent to signal modulation module, specifically include radio frequency chip, rf filtering
Device and crystal oscillator；
The signal modulation module is electrically connected with microprocessor, the GPS intermediate-freuqncy signal for sending to radio-frequency communication module
Demodulation despreading is carried out, navigation message is obtained and is sent to microprocessor；
The navigation message that the microprocessor is used to send signal modulation module carries out conversion process, obtains navigation number
According to；
The power supply is electrically connected with signal receiving module, radio-frequency communication module, signal modulation module and microprocessor, is used for
It powers to positioning device.
Further, the signal receiving module specifically includes antenna, antenna filter and preamplifier.
In conclusion the invention has the following advantages: the positioning device of the present invention for promoting positioning accuracy,
The GPS signal that GPS satellite is sent is converted to electric signal through signal receiving module, then carries out down-converted through radio-frequency communication module
Intermediate-freuqncy signal is converted to, further demodulation despreading is carried out through signal modulation module and obtains navigation message, further through micro- place
It manages device and carries out data conversion acquisition navigation data, to can realize that GPS is quick, is accurately positioned, while the present invention has circuit knot
Structure is simple, small in size, low in energy consumption, anti-interference ability and advantage overload-resistant, that impact capacity is strong, can make under weak output signal environment
With.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment:
As shown in Figure 1, the positioning device that positioning accuracy can be promoted specifically include signal receiving module, radio-frequency communication module,
Signal modulation module, microprocessor and power supply.
The signal receiving module is electrically connected with radio-frequency communication module, receives the GPS signal that GPS satellite is sent, and by GPS
Signal is converted to electric signal by electromagnetic wave signal and is sent to radio-frequency communication module, and the signal receiving module of the present embodiment specifically includes
Antenna, antenna filter and preamplifier.The antenna of the present embodiment is using cyclic annular microstrip antenna, and antenna is by GPS signal by electricity
After magnetostatic wave signal is converted into electric signal, the electric signal and its faint, while wherein containing a large amount of impurities, therefore pass through antenna filter
Filtering interference signals, and amplified signal code by preamplifier.
The radio-frequency communication module is electrically connected with signal modulation module, to signal receiving module send GPS electric signal into
Row down-converted, obtain GPS intermediate-freuqncy signal be sent to signal modulation module, specifically include radio frequency chip, radio-frequency filter and
Crystal oscillator, the radio-frequency filter include level-one filter and two-stage filter, and level-one filter cuts ratio using second order
Husband's filter is avenged, two-stage filter uses the SAW filter DW9255 of Mitel company.The radio frequency chip that the present embodiment uses
Specially GP2015 chip.
The signal modulation module is electrically connected with microprocessor, is carried out to the GPS intermediate-freuqncy signal that radio-frequency communication module is sent
Demodulation despreading obtains navigation message and is sent to microprocessor.The signal modulation module that the present embodiment uses is specially GP2021
Chip.
In the present embodiment, the microprocessor uses the floating point number processor of TI company, specially TMS320C6747
Chip.
The power supply is electrically connected with signal receiving module, radio-frequency communication module, signal modulation module and microprocessor, to whole
A GPS receiver power supply.The TPS73643 of the specially Texas Instrument of the power supply used in the present embodiment.
The present embodiment is in application, the GPS signal that GPS satellite is sent is converted to electric signal through signal receiving module, then through penetrating
Frequency communication module carries out down-converted and is converted to intermediate-freuqncy signal, further carries out demodulation despreading through signal modulation module and obtains
Navigation message further carries out data conversion through microprocessor and obtains navigation data, to can realize that GPS quickly, accurately determines
Position, while the GPS receiver has simple circuit structure, small in size, low in energy consumption, anti-interference ability and overload-resistant, impact capacity
Strong advantage can be made under weak output signal environment and use.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (2)
1. the positioning device of positioning accuracy can be promoted, which is characterized in that including signal receiving module, radio-frequency communication module, signal
Modulation module, microprocessor and power supply；
The signal receiving module is electrically connected with radio-frequency communication module, for receiving the GPS signal of GPS satellite transmission, and by GPS
Signal is converted to electric signal by electromagnetic wave signal and is sent to radio-frequency communication module；
The radio-frequency communication module is electrically connected with signal modulation module, the GPS electric signal for being sent to signal receiving module into
Row down-converted, obtain GPS intermediate-freuqncy signal be sent to signal modulation module, specifically include radio frequency chip, radio-frequency filter and
Crystal oscillator；
The signal modulation module is electrically connected with microprocessor, and the GPS intermediate-freuqncy signal for sending to radio-frequency communication module carries out
Demodulation despreading obtains navigation message and is sent to microprocessor；
The navigation message that the microprocessor is used to send signal modulation module carries out conversion process, obtains navigation data；
The power supply is electrically connected with signal receiving module, radio-frequency communication module, signal modulation module and microprocessor, for giving
Position device power supply.
2. the positioning device of positioning accuracy can be promoted as described in claim 1, which is characterized in that the signal receiving module tool
Body includes antenna, antenna filter and preamplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743843.4A CN109425879A (en) | 2017-08-25 | 2017-08-25 | The positioning device of positioning accuracy can be promoted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743843.4A CN109425879A (en) | 2017-08-25 | 2017-08-25 | The positioning device of positioning accuracy can be promoted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109425879A true CN109425879A (en) | 2019-03-05 |
Family
ID=65500670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743843.4A Withdrawn CN109425879A (en) | 2017-08-25 | 2017-08-25 | The positioning device of positioning accuracy can be promoted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109425879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221284A (en) * | 2019-07-05 | 2019-09-10 | 电子科技大学 | A kind of motion detection system and detection method |
-
2017
- 2017-08-25 CN CN201710743843.4A patent/CN109425879A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221284A (en) * | 2019-07-05 | 2019-09-10 | 电子科技大学 | A kind of motion detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190305 |