CN205899019U - Ranging system based on laser radar - Google Patents
Ranging system based on laser radar Download PDFInfo
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- CN205899019U CN205899019U CN201620217464.2U CN201620217464U CN205899019U CN 205899019 U CN205899019 U CN 205899019U CN 201620217464 U CN201620217464 U CN 201620217464U CN 205899019 U CN205899019 U CN 205899019U
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- laser
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- platform
- cmos sensor
- electric capacity
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Abstract
The utility model discloses a ranging system based on laser radar, including the laser emission platform, laser signal reflection platform and laser reflected signal processing platform, the laser emission platform includes the laser emission ware, laser signal reflection platform includes the radio frequency front end module, high -speed AD conversion module, laser reflected signal processing platform includes microprocessor, a plurality of CMOS sensors, a speech processing module, data processing module and distance display module, laser emitter sends the laser signal on the barrier reflects laser signal reflection platform, handle platform forming barrier image through handling back reecho to laser reflected signal, the distance of barrier is again awaited measuring through the analysis processes after, the utility model discloses the structure principle is simple, convenient to use, interference killing feature are strong, and stability is good, can improve to detect the sensitivity of target echo and target distance's measurement accuracy.
Description
Technical field
This utility model is related to laser ranging field, specially a kind of range-measurement system based on laser radar.
Background technology
Laser radar is light, mechanical, electrical integration apparatus, belongs to more high-end instrument and equipment.Now should
The application of class product is concentrated mainly on the application algorithm development occur in research institutions and various match, such as
Can only navigate, mobile tracking, robot vision etc..International skill level determines its height at present
Price, which greatly limits popularization and the application of civilian laser radar.
Utility model content
The purpose of this utility model is to provide a kind of range-measurement system based on laser radar, above-mentioned to solve
The problem proposing in background technology.
For achieving the above object, this utility model provides following technical scheme: a kind of based on laser radar
Range-measurement system, pats including at Laser emission platform, laser signal reflection platform and laser reflection signal
Platform, described Laser emission platform includes generating laser, before described laser signal reflection platform includes radio frequency
End module, high speed ad modular converter, described laser reflection signal processing platform includes microprocessor, multiple
Cmos sensor, data acquisition module, data processing module and apart from display module, multiple cmos pass
Sensor includes a cmos sensor, the 2nd cmos sensor, the 3rd cmos sensor, the n-th cmos
Sensor, n is the integer more than 3, a described cmos sensor, the 2nd cmos sensor, the 3rd
Cmos sensor, the n-th cmos sensor respectively by data acquisition module connect microprocessor, described away from
Connect microprocessor from display module, RF front-end module, described RF front-end module is turned by high speed ad
Die change block connects described data processing module, and described data processing module includes dsp chip and fpga chip,
Described dsp chip is connected with fpga chip.
Preferably, described RF front-end module include power amplifier module, frequency mixing module, filtration module,
Low noise amplification module, described power amplifier module connects frequency mixing module, and described frequency mixing module passes through filtering
Module connects low noise amplification module.
Preferably, described frequency mixing module includes biasing circuit, audion, inductance, and biasing circuit one end leads to
Cross resistance a and connect power end, biasing circuit connecting triode base stage and electric capacity a one end respectively, audion
Emitter stage connects electric capacity b one end and resistance c one end respectively, and the resistance c other end is grounded, and electric capacity a is another
End and the electric capacity b other end connect described power amplifier module outfan respectively, and transistor collector passes through electricity
Resistance b connects power end, and transistor collector is also respectively connected with inductance one end and electric capacity c one end, electric capacity c
The other end is grounded, and the inductance other end connects electric capacity d one end and filtration module input respectively, and electric capacity d is another
One end is grounded.
Preferably, described generating laser includes shell, described inside the shell be provided with condenser lenses, base,
Laser diode, circuit board, located at described laser diode one end, described focusing is saturating for described base one end
Mirror one end is located at described laser diode one end, and surrounds described base, and described shell surrounds described focusing
Lens, described laser diode one end is provided with cooperation laser diode and installs fixing fixed pan, described
Laser diode is provided with the conductive conductive hole of cooperation laser diode, and described circuit board is located at described shell
In tail end, described circuit board, located at described laser diode one end, also includes pin, described pin setting
In described housing exterior, and described pin is fixedly connected through described circuit board with described laser diode.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model structural principle is simple, easy to use, strong antijamming capability, good stability,
The detection sensitivity of target echo and the certainty of measurement of target range can be improve.
(2) this utility model adopt frequency mixing module can improve laser signal reflect platform stability and
Anti-interference, improves laser-bounce sensitivity.
(3) the generating laser structure adopting on Laser emission platform of the present utility model is simple, low cost,
Can continuously work, long service life.
Brief description
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is control principle block diagram of the present utility model；
Fig. 3 is frequency mixing module schematic diagram of the present utility model；
Fig. 4 is generating laser structural representation of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described it is clear that described embodiment is only this utility model one
Divide embodiment, rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into this
The scope of utility model protection.
Refer to Fig. 1-4, this utility model provides a kind of a kind of technical scheme: range finding based on laser radar
System, including Laser emission platform 1, laser signal reflection platform 2 and laser reflection signal processing platform
3, described Laser emission platform 1 includes generating laser 4, and described laser signal reflection platform 2 includes penetrating
Frequency front-end module 5, high speed ad modular converter 6, described laser reflection signal processing platform 3 includes micro- place
Reason device 7, multiple cmos sensor, data acquisition module 8, data processing module 9 and distance display
Module 10, multiple cmos sensors include a cmos sensor 11, the 2nd cmos sensor 12,
3rd cmos sensor 13, the n-th cmos sensor, n is the integer more than 3, a described cmos
Sensor 11, the 2nd cmos sensor 12, the 3rd cmos sensor 13, the n-th cmos sensor divide
Not Tong Guo data acquisition module 8 connect microprocessor 7, described apart from display module 10, radio-frequency front-end mould
Block 5 connects microprocessor 7, and described RF front-end module 5 is connected described by high speed ad modular converter 6
Data processing module 9, described data processing module 9 includes dsp chip 14 and fpga chip 15, institute
State dsp chip 14 to be connected with fpga chip 15.RF front-end module 5 include power amplifier module 16,
Frequency mixing module 17, filtration module 18, low noise amplification module 19, described power amplifier module 16 connects
Frequency mixing module 17, described frequency mixing module 17 connects low noise amplification module 19 by filtration module 18.Swash
Optical signal reflection platform 2 receives multiple laser reflection signals, and laser reflection signal is carried out separate, puts
Greatly, send after analog digital conversion to laser reflection signal processing platform 3, form multiple obstructions chart pictures, then warp
The distance of barrier to be measured is obtained after crossing analyzing and processing.
In the present embodiment, frequency mixing module 17 includes biasing circuit 20, audion 21, inductance 22, biasing
Circuit 20 one end connects power end by resistance a 1a, biasing circuit 20 connecting triode 21 base respectively
Pole and electric capacity a 1b one end, audion 21 emitter stage connects electric capacity b 2b one end and resistance c 3a respectively
One end, the resistance c 3a other end is grounded, and the electric capacity a 1b other end and the electric capacity b 2b other end connect respectively
Described power amplifier module 16 outfan, audion 21 colelctor electrode connects power end by resistance b 2a,
Audion 21 colelctor electrode is also respectively connected with inductance 22 one end and electric capacity c 3b one end, and c 3b is another for electric capacity
End ground connection, inductance 22 other end connects electric capacity d 4b one end and filtration module 18 input, electric capacity respectively
The d 4b other end is grounded.Using frequency mixing module can improve laser signal and reflect the stability of platform and anti-
Interference, improves laser-bounce sensitivity.
In addition, in the present embodiment, generating laser 4 includes shell 23, is provided with focusing in described shell 23
Lens 24, base 25, laser diode 26, circuit board 27, described base 25 one end is swashed located at described
Optical diode 26 one end, described condenser lenses 24 one end is located at described laser diode 26 one end, and wraps
Enclose described base 25, described shell 23 surrounds described condenser lenses 24, described laser diode 26 one end
It is provided with the fixed pan that cooperation laser diode 26 installs fixation, described laser diode 26 is provided with joins
Close the conductive conductive hole of laser diode, described circuit board 27 is in described shell 23 tail end, described
Circuit board 27, located at described laser diode 26 one end, also includes pin 28, and described pin 28 is arranged on
Outside described shell 23, and described pin 28 passes through described circuit board 27 and described laser diode 26
It is fixedly connected.The generating laser structure adopting on Laser emission platform of the present utility model is simple, cost
Low, can continuously work, long service life.
This utility model structural principle is simple, easy to use, strong antijamming capability, and good stability can
Improve the detection sensitivity of target echo and the certainty of measurement of target range.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill people of this area
It is possible to understand that can be real to these in the case of without departing from principle of the present utility model and spirit for member
Apply example and carry out multiple changes, modification, replacement and modification, scope of the present utility model is by claims
And its equivalent limits.
Claims (4)
1. a kind of range-measurement system based on laser radar, reflects platform including Laser emission platform, laser signal
And laser reflection signal processing platform it is characterised in that: described Laser emission platform includes Laser emission
Device, described laser signal reflection platform includes RF front-end module, high speed ad modular converter, described laser
Reflected signal processing platform include microprocessor, multiple cmos sensor, data acquisition module, at data
Manage module and apart from display module, multiple cmos sensors include a cmos sensor, the 2nd cmos
Sensor, the 3rd cmos sensor, the n-th cmos sensor, n is the integer more than 3, described first
Cmos sensor, the 2nd cmos sensor, the 3rd cmos sensor, the n-th cmos sensor lead to respectively
Cross data acquisition module connect microprocessor, described apart from display module, RF front-end module connect micro- place
Reason device, described RF front-end module connects described data processing module by high speed ad modular converter, described
Data processing module includes dsp chip and fpga chip, and described dsp chip is connected with fpga chip.
2. a kind of range-measurement system based on laser radar according to claim 1 it is characterised in that:
Described RF front-end module includes power amplifier module, frequency mixing module, filtration module, low noise amplification mould
Block, described power amplifier module connects frequency mixing module, and described frequency mixing module connects low noise by filtration module
Sound amplification module.
3. a kind of range-measurement system based on laser radar according to claim 2 it is characterised in that:
Described frequency mixing module includes biasing circuit, audion, inductance, and biasing circuit one end is connected by resistance a
Power end, biasing circuit connecting triode base stage and electric capacity a one end respectively, transistor emitter connects respectively
Connect electric capacity b one end and resistance c one end, the resistance c other end is grounded, the electric capacity a other end and electric capacity b are another
One end connects described power amplifier module outfan respectively, and transistor collector connects power supply by resistance b
End, transistor collector is also respectively connected with inductance one end and electric capacity c one end, and the electric capacity c other end is grounded,
The inductance other end connects electric capacity d one end and filtration module input respectively, and the electric capacity d other end is grounded.
4. a kind of range-measurement system based on laser radar according to claim 1 it is characterised in that:
Described generating laser includes shell, described inside the shell be provided with condenser lenses, base, laser diode,
Circuit board, located at described laser diode one end, described condenser lenses one end is located at institute for described base one end
State laser diode one end, and surround described base, described shell surrounds described condenser lenses, described sharp
Optical diode one end is provided with cooperation laser diode and installs fixing fixed pan, on described laser diode
It is provided with the conductive conductive hole of cooperation laser diode, described circuit board is in described shell tail end, described
Circuit board, located at described laser diode one end, also includes pin, and described pin is arranged on outside described shell
Portion, and described pin is fixedly connected through described circuit board with described laser diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217464.2U CN205899019U (en) | 2016-03-21 | 2016-03-21 | Ranging system based on laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217464.2U CN205899019U (en) | 2016-03-21 | 2016-03-21 | Ranging system based on laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205899019U true CN205899019U (en) | 2017-01-18 |
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ID=57764726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620217464.2U Expired - Fee Related CN205899019U (en) | 2016-03-21 | 2016-03-21 | Ranging system based on laser radar |
Country Status (1)
| Country | Link |
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| CN (1) | CN205899019U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761584A (en) * | 2017-04-11 | 2018-11-06 | 福特全球技术公司 | Laser lens window is kept to clean using light absorbent |
| CN109146389A (en) * | 2018-10-08 | 2019-01-04 | 广州德泰克自动化科技有限公司 | A kind of package ID track identification equipment |
| CN111670378A (en) * | 2019-01-09 | 2020-09-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
| CN112543033A (en) * | 2020-11-13 | 2021-03-23 | 苏州浪潮智能科技有限公司 | Anti-interference device for reflected signal and control method thereof |
-
2016
- 2016-03-21 CN CN201620217464.2U patent/CN205899019U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761584A (en) * | 2017-04-11 | 2018-11-06 | 福特全球技术公司 | Laser lens window is kept to clean using light absorbent |
| CN108761584B (en) * | 2017-04-11 | 2022-06-24 | 福特全球技术公司 | Keeping laser lens window clean using light absorbing materials |
| CN109146389A (en) * | 2018-10-08 | 2019-01-04 | 广州德泰克自动化科技有限公司 | A kind of package ID track identification equipment |
| CN111670378A (en) * | 2019-01-09 | 2020-09-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
| CN112543033A (en) * | 2020-11-13 | 2021-03-23 | 苏州浪潮智能科技有限公司 | Anti-interference device for reflected signal and control method thereof |
| CN112543033B (en) * | 2020-11-13 | 2022-12-16 | 苏州浪潮智能科技有限公司 | Anti-interference device for reflected signal and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 510730 room 02, floor 2, no.217, Kaifa Avenue, Guangzhou Economic and Technological Development Zone, Guangzhou, Guangdong Province Patentee after: Guangdong Detek Automation Technology Co.,Ltd. Address before: 510730 Guangdong city of Guangzhou province bluejade Luogang District economic and Technological Development Zone, four Street No. nine Science Park No. 1 building 4 floor (south room 406) Patentee before: GUANGZHOU DATATRACK AUTOMATION TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |