CN207488500U - Automobile-used laser radar range speed measuring device - Google Patents
Automobile-used laser radar range speed measuring device Download PDFInfo
- Publication number
- CN207488500U CN207488500U CN201721586316.9U CN201721586316U CN207488500U CN 207488500 U CN207488500 U CN 207488500U CN 201721586316 U CN201721586316 U CN 201721586316U CN 207488500 U CN207488500 U CN 207488500U
- Authority
- CN
- China
- Prior art keywords
- laser
- automobile
- radar range
- speed measuring
- drive
- 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.)
- Expired - Fee Related
Links
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model is related to a kind of automobile-used laser radar range speed measuring devices, including control device, camera imaging device, semiconductor laser drive and laser receiver, pivotable reflective mirror drive is further included, camera imaging device, pivotable reflective mirror drive, semiconductor laser drive and laser receiver are electrically connected respectively with control device；Wherein, the pivotable reflective mirror drive includes mirror lens and motor driver, motor driver connection mirror lens, and motor driver causes mirror lens to rotate；Mirror lens is used for the laser pulse for sending out semiconductor laser diode, is reflected into the car of detection；And laser receiver is for the subreflexive laser pulse of vehicle of reception detection.The utility model it is ingenious using camera differentiate objects in front, guide laser radar range test the speed, have time of measuring it is short, speed is fast, and cost than it is relatively low the advantages of.
Description
Technical field
The utility model is related to a kind of Vehicular device more particularly to a kind of automobile-used laser radar range speed measuring devices.
Background technology
Vehicular distance-measuring speed measuring device is the device that automobile, motorcycle hold the balance, and especially to the safety of driver and is relaxed
Adaptive has influence.Laser radar range speed measuring device is a kind of photon radar system, is widely applied in many fields.
It can be divided into non-imaging type using wider laser radar range speed measuring device on automobile at present and imaging formula laser radar two is big
Class.Non-imaging type laser radar is only there are one laser beam emitting head (laser head is fixed) in the market, direction be it is fixed, can only
The testee distance of accurate detection fixed-direction (rectilinear direction), speed, non-imaging type laser radar are propagated according to laser beam
Time determines distance.I.e. by calculating the time difference received between pulse of laser diode starting impulse and photodiode, come
Calculate the distance of target.It is short with low cost, time of measuring, the features such as speed is fast, range is big.Imagewise laser light thunder in the market
Up to having multiple laser beam emitting heads 32 or 64 or 128.360 degrees omnidirection detects, and can be accurately obtained the data of testee 3D,
Imagewise laser light radar can obtain the accurate two dimension of testee or the speed of three-dimensional image and testee, distance etc..
It is short with time of measuring, the features such as speed is fast, and stability is high, but cost is higher.
Therefore, existing Vehicular distance-measuring speed measuring device also has the place promoted.
Utility model content
In view of the foregoing drawbacks, the purpose of this utility model is to provide a kind of efficient, at low cost, service life length automobile-used
Laser radar range speed measuring device, the technical issues of to solve the prior art.
In order to achieve the above objectives, the utility model provides a kind of automobile-used laser radar range speed measuring device, including a control
It is rotatable anti-to further include one for device, a camera imaging device, semiconductor laser drive and a laser receiver
Mirror drive is penetrated, connection relation is the camera imaging device, pivotable reflective mirror drive, semiconductor laser
Driving device and laser receiver are electrically connected respectively with the control device；Wherein,
The pivotable reflective mirror drive includes a mirror lens and a motor driver, the motor driving dress
The connection mirror lens is put, the motor driver causes the mirror lens to rotate；
The mirror lens is used for the laser pulse for sending out the semiconductor laser drive, is reflected into detection
Car；The subreflexive laser pulse of vehicle that the laser receiver detects for reception.
According to laser radar range speed measuring device automobile-used described in the utility model preferred embodiment, display dress is further included
It puts, the display device and the control device are electrically connected.
According to laser radar range speed measuring device automobile-used described in the utility model preferred embodiment, the semiconductor laser
Driving device includes semiconductor laser diode and a laser driving apparatus；The laser driving apparatus includes a pulses generation
Device, a burst pulse acquisition device and a burst pulse amplifying device.
According to laser radar range speed measuring device automobile-used described in the utility model preferred embodiment, the laser receiver
Including an avalanche photodide and a receiving converter；The receiving converter includes a gain amplifier, a ratio
Discriminator and a temperature compensation means.
According to laser radar range speed measuring device automobile-used described in the utility model preferred embodiment, power supply dress is further included
It puts, the supply unit is electrically connected the camera imaging device, pivotable reflective mirror drive, semiconductor laser and drives
Dynamic device, laser receiver and control device.
According to laser radar range speed measuring device automobile-used described in the utility model preferred embodiment, the camera imaging dress
It puts including a camera and an imaging circuit panel assembly.
The design concept of the application is to design the laser radar range that one efficient, long lifespan, maintenance cost are low to survey
Speed variator, it is ingenious to differentiate objects in front using camera between non-imaged and imagewise laser light radar, guide laser radar
Ranging is tested the speed.And laser beam emitting head (laser head is fixed) there are one laser radars, in non-imaging type laser radar base
Rotatable mirror lens and imaging circuit panel assembly are increased on plinth, can accurately be detected in the range of the certain angle of front
Target reaches the function of ranging and range rate.
Compared with prior art, the utility model has the following advantages the utility model：
Firstth, the application is ingenious differentiates objects in front using camera, laser radar range is guided to test the speed, when having measurement
Between it is short, speed is fast, and cost than it is relatively low the advantages of.
Certainly, implement any one specific embodiment of the utility model content, all of the above might not be reached simultaneously
Technique effect.
Description of the drawings
Fig. 1 is the application principle schematic；
Fig. 2 is the application surface structure schematic diagram；
Fig. 3 is the application structure diagram.
Specific embodiment
Below in conjunction with attached drawing, the utility model is illustrated.
Referring to Fig. 1, a kind of automobile-used laser radar range speed measuring device, including control device 10, camera imaging device
20th, pivotable reflective mirror drive 30, semiconductor laser drive 40 and laser receiver 50, connection therein are closed
It is to be, the camera imaging device 20, pivotable reflective mirror drive 30, semiconductor laser drive 40 and laser
Reception device 50 is electrically connected respectively with the control device 10；Control device 10 is responsible for the control management work of whole system,
Mainly include:Generate ranging commencing signal, acquisition timing module capacitance voltage, data processing, avalanche photodide biased electrical
Pressure is adjusted and is communicated with host computer, video signal analysis etc..
The composition of wherein each device is that the camera imaging device 20 includes camera 21 and imaging circuit panel assembly
22；Imaging circuit panel assembly 22 mainly detects the target in the range of the certain angle of front, such as front row by camera 21
The car sailed to obtain the orientation of target, form and classification, is converted to data transfer to control device 10.
Referring to Fig. 3, and pivotable reflective mirror drive 30 includes mirror lens 31 and motor driver (is schemed not
Show)；The motor driver connects the mirror lens, and the motor driver causes the mirror lens to rotate；It can
The mirror lens 31 of rotation is mainly one group of mirror lens, for the laser acquisition wave of reflection laser diode emitter.This group is anti-
It penetrates lens to be controlled by control device 10, can be rotated in certain angle by motor driver, pass through mirror lens 31
Rotation change laser acquisition wave the direction of the launch, so as in certain angle, be accurately obtained testee distance,
Speed.
In addition, semiconductor laser drive 40 includes semiconductor laser diode and laser driving apparatus；Preferably,
The semiconductor laser diode uses OSRAM SPLLL90-3 type 905NM wavelength, but cannot be used for limiting the application,
All should be the protection domain of the application as long as the semiconductor laser diode of its brand, model can reach launch requirements.And
Laser receiver 50 includes avalanche photodide and receiving converter；The mirror lens 31 is used for the semiconductor
The laser pulse that laser diode is sent out is reflected into the car of detection；The vehicle that the laser receiver 50 detects for reception
Subreflexive laser pulse.
Preferably, a display device 60 is further included, the display device 60 and the control device 10 are electrically connected.Control
Device 10 shows distance value and velocity amplitude in display device 60.Preferably, the laser driving apparatus includes pulses generation
Device, burst pulse acquisition device and burst pulse amplifying device.Preferably, the receiving converter includes gain amplifier, ratio
Example discriminator and temperature compensation means.
Receiving converter mainly completes opto-electronic conversion, signal amplification and the effect for comparing output timing stop signal.It adopts
Avalanche photodide electrooptical device is conducive to improve range, and the amplification of two-stage triode advantageously reduces cost.Separately
Outside, the interior gain due to avalanche photodide and breakdown reverse voltage have very big temperature coefficient, therefore, also to there is auxiliary
Temperature compensation means, provide temperature information to microcontroller by being mounted on temperature sensing chip beside avalanche photodide,
Again by microcontroller by the way that digital regulation resistance adjustment is set to be added in the reverse bias voltage on avalanche photodide.
Preferably, supply unit 70 is further included, the supply unit 70 is electrically connected the camera imaging device 20, can
Rotary reflection mirror drive 30, semiconductor laser drive 40, laser receiver 50 and control device 10 are each
Device provides power supply.
Referring to Fig. 2, as shown in the figure, the ranging and range rate device of the application is by outer viewing, it can be seen that Laser emission window
41 and laser pick-off window 51, referring to Fig. 3, as shown in the figure, behind Laser emission window, mirror lens 31, reflection are set
Lens 31 are rotatable, for the laser acquisition wave of reflection laser diode emitter.This group of mirror lens is by control device 10
Control, can be rotated by motor driver in certain angle, change laser acquisition by the rotation of mirror lens 31
The direction of the launch of wave, so as in certain angle, be accurately obtained testee distance, speed.
Then, the illustratively operation principle of the application ranging and range rate device：
Control device 10 assigns ranging sign on, and camera imaging device 20 searches objects ahead, after capturing target
Confirm the form of target, general categories, after accurate orientation, by data back to control device 10.Control device 10 passes through data
Analysis and calculating assign instruction to pivotable reflective mirror drive 30, rotate to rotatable mirror lens 31 certain
Angle.
Control device 10 assigns instruction to semiconductor laser drive 40, semiconductor laser drive 40 simultaneously
After receiving instruction, by the use of high speed field-effect tube as switching nanosecond, the very narrow high current of pulsewidth is generated by capacitor charge and discharge
Pulse, driving semiconductor laser diode sends out pulse laser, while timing commencing signal is sent to timing circuit, starts timing
Constant-current source in circuit charges to timer capacitor.
The laser pulse that semiconductor laser diode is launched after optical system collimates, is emitted to air, is passed through air
It is defeated to rotatable mirror lens 31, by 31 reflection laser of mirror lens to the target detected, the part after target scattering
Light, received optical system enter the photosurface of opto-electronic receiver switching device, the optical signal that laser receiver 50 will receive
It converted, amplified, output to clocking portions, makes timer capacitor stop charging, the at this moment voltage value of capacitance and charging after shaping
Time corresponds to.
Microcontroller control sampling and read timer capacitor voltage value, and according to advance calibration by voltage value be converted into away from
It is sent from value, velocity amplitude to control device 10, control device 10 shows distance value and velocity amplitude in display device 60.
The utility model is described in detail above, compared with prior art, the utility model has following excellent
Point：
Firstth, the application is ingenious differentiates objects in front using camera, laser radar range is guided to test the speed, when having measurement
Between it is short, speed is fast, and cost than it is relatively low the advantages of.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this, is appointed
What what those skilled in the art can think variation, should all fall within the protection scope of the present utility model.
Claims (6)
1. a kind of automobile-used laser radar range speed measuring device swashs including a control device, a camera imaging device, semiconductor
Light device driving device and a laser receiver, which is characterized in that further include a pivotable reflective mirror drive, connection relation
For the camera imaging device, pivotable reflective mirror drive, semiconductor laser drive and laser receiver
It is electrically connected respectively with the control device；Wherein,
The pivotable reflective mirror drive includes a mirror lens and a motor driver, and the motor driver connects
The mirror lens is connect, the motor driver causes the mirror lens to rotate；
The mirror lens is used for the laser pulse for sending out the semiconductor laser drive, is reflected into the vehicle of detection
Son；The subreflexive laser pulse of vehicle that the laser receiver detects for reception.
2. automobile-used laser radar range speed measuring device as described in claim 1, which is characterized in that further include a display device, institute
It states display device and the control device is electrically connected.
3. automobile-used laser radar range speed measuring device as described in claim 1, which is characterized in that the semiconductor laser driving
Device includes semiconductor laser diode and a laser driving apparatus；The laser driving apparatus is filled including a pulses generation
It puts, a burst pulse acquisition device and a burst pulse amplifying device.
4. automobile-used laser radar range speed measuring device as described in claim 1, which is characterized in that the laser receiver includes
One avalanche photodide and a receiving converter；The receiving converter includes a gain amplifier, a ratio differentiates
Device and a temperature compensation means.
5. automobile-used laser radar range speed measuring device as described in claim 1, which is characterized in that further include a supply unit, institute
It states supply unit and is electrically connected the camera imaging device, pivotable reflective mirror drive, semiconductor laser driving dress
It puts, laser receiver and control device.
6. automobile-used laser radar range speed measuring device as described in claim 1, which is characterized in that the camera imaging device packet
Include a camera and an imaging circuit panel assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586316.9U CN207488500U (en) | 2017-11-24 | 2017-11-24 | Automobile-used laser radar range speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586316.9U CN207488500U (en) | 2017-11-24 | 2017-11-24 | Automobile-used laser radar range speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207488500U true CN207488500U (en) | 2018-06-12 |
Family
ID=62471261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721586316.9U Expired - Fee Related CN207488500U (en) | 2017-11-24 | 2017-11-24 | Automobile-used laser radar range speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207488500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687091A (en) * | 2021-09-22 | 2021-11-23 | 深圳市天辰防务通信技术有限公司 | Laser speed measuring device |
| CN113888901A (en) * | 2021-09-29 | 2022-01-04 | 英华达（南京）科技有限公司 | Intelligent safe driving reminding device and method and helmet |
-
2017
- 2017-11-24 CN CN201721586316.9U patent/CN207488500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687091A (en) * | 2021-09-22 | 2021-11-23 | 深圳市天辰防务通信技术有限公司 | Laser speed measuring device |
| CN113888901A (en) * | 2021-09-29 | 2022-01-04 | 英华达（南京）科技有限公司 | Intelligent safe driving reminding device and method and helmet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102364531B1 (en) | Noise Adaptive Solid-State LIDAR System | |
| CN211014629U (en) | Laser radar device | |
| CN110308456B (en) | Bias voltage adjusting device for improving detection distance and laser radar system | |
| US9417326B2 (en) | Pulsed light optical rangefinder | |
| US9846236B2 (en) | Optical scanner, object detector, and sensing apparatus | |
| US20140211194A1 (en) | Cost-effective lidar sensor for multi-signal detection, weak signal detection and signal disambiguation and method of using same | |
| CN210142193U (en) | Distance measuring device and mobile platform | |
| CN203909297U (en) | Laser range finder based on high-speed single-photon detection | |
| US10132926B2 (en) | Range finder, mobile object and range-finding method | |
| TW200918929A (en) | Procedure and device to determining a distance by means of an opto-electronic image sensor | |
| WO2018108980A1 (en) | A lidar apparatus | |
| US10422862B2 (en) | LiDAR apparatus | |
| CN211505895U (en) | Laser emitting device, peak holding circuit, distance measuring device and mobile platform | |
| US20180164410A1 (en) | LiDAR Apparatus | |
| CN207488500U (en) | Automobile-used laser radar range speed measuring device | |
| CN112305519B (en) | Laser radar rapid detection system based on silicon photomultiplier | |
| CN110018486A (en) | A kind of multi-beam laser range sensor based on TOF | |
| CN109581333A (en) | Laser radar reading circuit based on the reconstruct of pulse echo ultra-high speed sampling | |
| CN111656219B (en) | Apparatus and method for determining a distance of at least one object using an optical signal | |
| CN114442109B (en) | Large dynamic range hybrid solid-state laser radar system based on transceiver array module | |
| US20200292667A1 (en) | Object detector | |
| CN105182355A (en) | Infrared light auto-focus microscope with temperature compensation | |
| WO2020113564A1 (en) | Laser receiving circuit, distance measurement device, and mobile platform | |
| Hallman et al. | On two-dimensional rangefinding using a∼ 1 nJ/∼ 100 ps laser diode transmitter and a CMOS SPAD matrix | |
| CN114895285A (en) | Laser radar direct current coupling receiving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190911 Address after: 215600 No. 20, Chengyang Road, Houyue, Jingang Town, Zhangjiagang City, Suzhou City, Jiangsu Province (in Fanchuang Industrial Park, Zhangjiagang Bonded Zone) Patentee after: Hairuo (Suzhou) Photoelectric Co., Ltd. Address before: 201613 Songjiang District Xinqiao Town, Xinqiao Town, Xinmiao three, No. 628, No. 628, 5 and three floors Patentee before: LILEDS (SHANGHAI) Co. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20201124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |