CN108535718A - Trailer-mounted radar velocity-measuring system based on DSP - Google Patents
Trailer-mounted radar velocity-measuring system based on DSP Download PDFInfo
- Publication number
- CN108535718A CN108535718A CN201810286324.4A CN201810286324A CN108535718A CN 108535718 A CN108535718 A CN 108535718A CN 201810286324 A CN201810286324 A CN 201810286324A CN 108535718 A CN108535718 A CN 108535718A
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- China
- Prior art keywords
- module
- dsp
- trailer
- measuring system
- velocity
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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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)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of trailer-mounted radar velocity-measuring system based on DSP, including：Radar probe, DSP module, FPGA module, signal amplification module, A/D converter and data transmission module；Radar probe is for acquiring for obtaining vehicle speed information, and velocity information is transformed into sine wave signal, signal amplification module is for amplifying sine wave signal, and in input value to A/D converter block, the analog signal of input is converted into digital signal by A/D converter, and is exported into FPGA module；DSP module is data processing centre, data transmission module treated for exporting DSP module velocity amplitude.The trailer-mounted radar velocity-measuring system overcomes to be tested the speed using photo electrical tacho generator in the prior art, its precision when low speed measures is high, but when speed is more than 150 or more, there is the defect of precision problem.
Description
Technical field
The present invention relates to trailer-mounted radar fields, and in particular, to a kind of trailer-mounted radar velocity-measuring system based on DSP.
Background technology
Trailer-mounted radar is the radar for automobile or other ground maneuver vehicles as its name suggests.Therefore, it includes based on not
The various different radars of same technology (such as laser, ultrasonic wave, microwave) have different functions (for example to find barrier, prediction
Collision, adaptive learning algorithms), and (for example pulse radar, fmcw radar, microwave impact thunder with different operation principle
Up to).Microwave radar has important commercial significance in car radar.
Vehicle speed measuring system in the prior art is mainly tested the speed using photo electrical tacho generator, it is measured in low speed
When precision it is high, but when speed is more than 150 or more, there is precision problem.
Therefore it provides a kind of trailer-mounted radar velocity-measuring system based on DSP, overcomes and tested the speed biography using photo-electric in the prior art
Defect when sensor tests the speed.
Invention content
In view of the above technical problems, it is an object of the invention to provide a kind of trailer-mounted radar velocity-measuring system based on DSP overcomes existing
Have in technology and tested the speed using photo electrical tacho generator, its precision when low speed measures is high, but speed be more than 150 with
When upper, precision problem there is.
To achieve the goals above, the present invention provides a kind of trailer-mounted radar velocity-measuring system based on DSP, it is described to be based on
The trailer-mounted radar velocity-measuring system of DSP includes：Radar probe, DSP module, FPGA module, signal amplification module, A/D converter with
And data transmission module；The radar probe is transformed into for acquiring for obtaining vehicle speed information, and by velocity information
Sine wave signal, the signal amplification module is for amplifying sine wave signal, and input value is to the A/D converter block
In, the analog signal of input is converted into digital signal by the A/D converter, and is exported into the FPGA module, described
FPGA module realization the A/D converter is controlled, the data of A/D converter are acquired, and be buffered to and
In the memory of FPGA module and receive the DSP module control signal three functions；The DSP module is data processing
Center, the data transmission module treated for exporting DSP module velocity amplitude.
Preferably, the DSP module includes：Arithmetic unit and controller, the DSP module use TMS320C6701 types
Chip.
Preferably, the trailer-mounted radar velocity-measuring system based on DSP further includes：It is connected respectively with the DSP module
SSRAM modules, SDRAM module and FLASH modules, the SSRAM modules are with the SDRAM module as synchronous dynamic data
Memory is one of system data storage, and the FLASH modules are as program storage, storage system program.
Preferably, the data transmission module includes：Pulse transmission mode, 1/O serial ports transmission mode and MCBSP serial ports
Transmission mode.
Preferably, the trailer-mounted radar velocity-measuring system based on DSP further includes the first clock module and second clock mould
Block, first clock module are connected with the DSP module, and the second clock module is connected with the FPGA module.
Preferably, the trailer-mounted radar velocity-measuring system based on DSP further includes power module, and the power module is system
Each module provides operating voltage, and the power module is 12V DC power supply.
Preferably, the radar probe includes：Probe body and supporting mechanism, the probe body are fixed on the support
The top of mechanism, and the supporting mechanism can drive the probe body dynamic by shaft rotation of vertical direction.
Preferably, the supporting mechanism includes：Sequentially connected fixed station, column spinner, control babinet, connection from top to bottom
Platform and more support legs, are provided with driving motor in the control cabinet body, the driving motor by transmission gear with it is described
Column spinner is connected, and the driving motor can drive the column spinner rotation.
Preferably, the support leg includes：The telescopic leg and fixed feet being located along the same line, the telescopic leg being capable of edges
It is flexible length direction, and length can lock.
According to above-mentioned technical proposal, the trailer-mounted radar velocity-measuring system provided by the invention based on DSP overcomes in the prior art
It being tested the speed using photo electrical tacho generator, its precision when low speed measures is high, but when speed is more than 150 yards or more,
It there is the defect of precision problem.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 be the present invention a kind of preferred embodiment in the knot of the trailer-mounted radar velocity-measuring system based on DSP that provides
Structure schematic diagram；
Fig. 2 be the present invention a kind of preferred embodiment in thunder in the trailer-mounted radar velocity-measuring system based on DSP that provides
Up to the structural schematic diagram of probe.
Reference sign
1 probe body, 2 fixed station
3 column spinner, 4 driving motor
5 transmission gears 6 control babinet
7 connected unit, 8 telescopic leg
9 fixed feets
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality that " upper and lower, inside and outside " etc. is included in the term
Only represent orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as pair
The limitation of the term.
As shown in Figure 1, the present invention provides a kind of trailer-mounted radar velocity-measuring system based on DSP, described based on the vehicle-mounted of DSP
Radar velocity measurement system includes：Radar probe, DSP module, FPGA module, signal amplification module, A/D converter and data pass
Defeated module；The radar probe is transformed into sine wave letter for acquiring for obtaining vehicle speed information, and by velocity information
Number, the signal amplification module is used to amplify sine wave signal, and in input value to the A/D converter block, the A/D
The analog signal of input is converted into digital signal by converter, and is exported into the FPGA module, and the FPGA module is real
Now the A/D converter is controlled, the data of A/D converter are acquired, and be buffered to and FPGA module it is interior
In depositing and receive the DSP module control signal three functions；The DSP module is data processing centre, the number
According to transmission module treated for exporting DSP module velocity amplitude.
According to above-mentioned technical proposal, the trailer-mounted radar velocity-measuring system provided by the invention based on DSP overcomes in the prior art
It being tested the speed using photo electrical tacho generator, its precision when low speed measures is high, but when speed is more than 150 yards or more,
It there is the defect of precision problem.
In a kind of preferred embodiment of the present invention, the DSP module includes：Arithmetic unit and controller, it is described
It is by the timer counter of peripheral circuit components that DSP module, which uses TMS320C6701 cake cores, the TMS320C6701 cake cores,
The integrated DSP such as device, interrupt control unit, dma controller and multifunctional serial port, function is more abundant, and the speed of processing is more
Soon.
In a kind of preferred embodiment of the present invention, the trailer-mounted radar velocity-measuring system based on DSP further includes：Point
SSRAM modules, SDRAM module and the FLASH modules not being connected with the DSP module, the SSRAM modules with it is described
SDRAM module is one of system data storage as synchronous dynamic data storage, and the FLASH modules are deposited as program
Reservoir, storage system program.
In a kind of preferred embodiment of the present invention, the data transmission module includes：Pulse transmission mode, 1/O
Serial ports transmission mode and MCBSP serial ports transmission modes, the data of output are exactly the velocity amplitude detected.
In a kind of preferred embodiment of the present invention, the trailer-mounted radar velocity-measuring system based on DSP further includes the
One clock module and second clock module, first clock module are connected with the DSP module, the second clock module
It is connected with the FPGA module, first clock module is the external clock of the DSP module, and the second clock module is
The external clock of the FPGA module.
In a kind of preferred embodiment of the present invention, the trailer-mounted radar velocity-measuring system based on DSP further includes electricity
Source module, the power module provides operating voltage for each module of system, and the power module is 12V DC power supply, is passed through
It is transformed to system and 8V, ± 5V, 3.3V, 1.8V and 1.5V direct current electricity output is provided respectively.
In a kind of preferred embodiment of the present invention, the radar probe includes：Probe body 1 and supporting mechanism,
The probe body 1 is fixed on the top of the supporting mechanism, and the supporting mechanism can drive the probe body 1 with perpendicular
Histogram is moved to for shaft rotation, to facilitate the measurement direction for adjusting the probe body 1.
In a kind of preferred embodiment of the present invention, the supporting mechanism includes：It is sequentially connected solid from top to bottom
Determine platform 2, column spinner 3, control babinet 6, connected unit 7 and more support legs, driving motor 4 be provided in the control babinet 6,
The driving motor 4 is connected by transmission gear 5 with the column spinner 3, and the driving motor 4 can drive the column spinner 3
Driving force is converted into the column spinner 3 by rotation by 4 output driving power of the driving motor using the transmission gear 5
Rotatory force adjusts the rotation of the probe body 1 indirectly to drive the column spinner 3 to rotate.
In a kind of preferred embodiment of the present invention, the support leg includes：The telescopic leg 8 being located along the same line
With fixed feet 9, the telescopic leg 8 can be flexible along length direction, and length can lock, which, which facilitates, adjusts institute
The levelness of fixed station 2 is stated, in time in the case of stationary plane injustice, still can adjust the support leg so that described solid
Determine platform 2 and be in horizontality, so that the probe body 1 can effectively obtain speed information.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. a kind of trailer-mounted radar velocity-measuring system based on DSP, which is characterized in that the trailer-mounted radar velocity-measuring system based on DSP
Including：Radar probe, DSP module, FPGA module, signal amplification module, A/D converter and data transmission module；
The radar probe is transformed into sine wave signal for acquiring for obtaining vehicle speed information, and by velocity information,
For amplifying sine wave signal, and in input value to the A/D converter block, the A/D turns the signal amplification module
The analog signal of input is converted into digital signal by parallel operation, and is exported into the FPGA module, and the FPGA module is realized
The A/D converter is controlled, the data of A/D converter are acquired, and is buffered to and the memory of FPGA module
In and receive the DSP module control signal three functions；The DSP module is data processing centre, the data
Transmission module treated for exporting DSP module velocity amplitude.
2. the trailer-mounted radar velocity-measuring system according to claim 1 based on DSP, which is characterized in that the DSP module packet
It includes：Arithmetic unit and controller, the DSP module use TMS320C6701 cake cores.
3. the trailer-mounted radar velocity-measuring system according to claim 1 based on DSP, which is characterized in that the vehicle based on DSP
Carrying radar velocity measurement system further includes：SSRAM modules, SDRAM module and the FLASH modules being connected respectively with the DSP module,
The SSRAM modules, as synchronous dynamic data storage, are one of system data storages with the SDRAM module, described
FLASH modules are as program storage, storage system program.
4. the trailer-mounted radar velocity-measuring system according to claim 1 based on DSP, which is characterized in that the data transmission mould
Block includes：Pulse transmission mode, 1/O serial ports transmission mode and MCBSP serial ports transmission modes.
5. the trailer-mounted radar velocity-measuring system according to claim 1 based on DSP, which is characterized in that the vehicle based on DSP
It further includes the first clock module and second clock module to carry radar velocity measurement system, first clock module and the DSP moulds
Block is connected, and the second clock module is connected with the FPGA module.
6. the trailer-mounted radar velocity-measuring system according to claim 5 based on DSP, which is characterized in that the vehicle based on DSP
It further includes power module to carry radar velocity measurement system, and the power module provides operating voltage, and the power supply for each module of system
Module is 12V DC power supply.
7. the trailer-mounted radar velocity-measuring system according to claim 1 based on DSP, which is characterized in that the radar probe packet
It includes：Probe body (1) and supporting mechanism, the probe body (1) are fixed on the top of the supporting mechanism, and the support machine
Structure can drive the probe body (1) dynamic by shaft rotation of vertical direction.
8. the trailer-mounted radar velocity-measuring system according to claim 7 based on DSP, which is characterized in that the supporting mechanism packet
It includes：Sequentially connected fixed station (2), column spinner (3), control babinet (6), connected unit (7) and more support legs from top to bottom,
It is provided with driving motor (4) in the control babinet (6), the driving motor (4) passes through transmission gear (5) and the column spinner
(3) it is connected, the driving motor (4) can drive the column spinner (3) rotation.
9. the trailer-mounted radar velocity-measuring system according to claim 8 based on DSP, which is characterized in that the support leg includes：
The telescopic leg (8) and fixed feet (9) being located along the same line, the telescopic leg (8) can be flexible along length direction, and
Length can lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286324.4A CN108535718A (en) | 2018-04-03 | 2018-04-03 | Trailer-mounted radar velocity-measuring system based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286324.4A CN108535718A (en) | 2018-04-03 | 2018-04-03 | Trailer-mounted radar velocity-measuring system based on DSP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108535718A true CN108535718A (en) | 2018-09-14 |
Family
ID=63482980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810286324.4A Pending CN108535718A (en) | 2018-04-03 | 2018-04-03 | Trailer-mounted radar velocity-measuring system based on DSP |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030210174A1 (en) * | 2002-05-13 | 2003-11-13 | Hitachi, Ltd. | Radar system |
| CN202171644U (en) * | 2011-06-22 | 2012-03-21 | 北京华远凌进电子科技有限公司 | Portable civil imaging monitoring radar and radar system |
| CN203376474U (en) * | 2013-07-15 | 2014-01-01 | 陕西兴源电子设备有限公司 | A radar data processing system |
| CN105891818A (en) * | 2016-04-22 | 2016-08-24 | 合肥师范学院 | High-precision radar velocity measuring system and velocity measuring method |
-
2018
- 2018-04-03 CN CN201810286324.4A patent/CN108535718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030210174A1 (en) * | 2002-05-13 | 2003-11-13 | Hitachi, Ltd. | Radar system |
| CN202171644U (en) * | 2011-06-22 | 2012-03-21 | 北京华远凌进电子科技有限公司 | Portable civil imaging monitoring radar and radar system |
| CN203376474U (en) * | 2013-07-15 | 2014-01-01 | 陕西兴源电子设备有限公司 | A radar data processing system |
| CN105891818A (en) * | 2016-04-22 | 2016-08-24 | 合肥师范学院 | High-precision radar velocity measuring system and velocity measuring method |
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Application publication date: 20180914 |