CN205899019U - Ranging system based on laser radar - Google Patents

Ranging system based on laser radar Download PDF

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Publication number
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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China
Prior art keywords
laser
module
platform
cmos sensor
electric capacity
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Expired - Fee Related
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CN201620217464.2U
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Chinese (zh)
Inventor
尹迪良
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Guangdong Detek Automation Technology Co ltd
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Guangzhou Ditechnic Automation Technology Co Ltd
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Priority to CN201620217464.2U priority Critical patent/CN205899019U/en
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Publication of CN205899019U publication Critical patent/CN205899019U/en
Expired - Fee Related legal-status Critical Current
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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

A kind of range-measurement system based on laser radar
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.
CN201620217464.2U 2016-03-21 2016-03-21 Ranging system based on laser radar Expired - Fee Related CN205899019U (en)

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Application Number Priority Date Filing Date Title
CN201620217464.2U CN205899019U (en) 2016-03-21 2016-03-21 Ranging system based on laser radar

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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C14 Grant of patent or utility model
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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.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

CF01 Termination of patent right due to non-payment of annual fee