CN205539450U - A laser pulse width control device for automobile anti -collision system - Google Patents
A laser pulse width control device for automobile anti -collision system Download PDFInfo
- Publication number
- CN205539450U CN205539450U CN201620067470.4U CN201620067470U CN205539450U CN 205539450 U CN205539450 U CN 205539450U CN 201620067470 U CN201620067470 U CN 201620067470U CN 205539450 U CN205539450 U CN 205539450U
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- Prior art keywords
- laser
- pulse width
- width control
- automobile
- collision system
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- 238000003079 width control Methods 0.000 title claims abstract description 32
- 238000004891 communication Methods 0.000 claims description 14
- 230000004308 accommodation Effects 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 6
- 230000000737 periodic effect Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 210000001367 artery Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
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- Optical Radar Systems And Details Thereof (AREA)
- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a laser pulse width control device for automobile anti -collision system, it includes shell, apron, transmission camera lens and laser transmission system, the laser that laser transmission system launched passes through the transmission camera lens focuses on the outside transmission in back, laser transmission system includes the LD laser instrument. The utility model discloses an it adopts efficient LD laser instrument a laser pulse width control device for automobile anti -collision system, can realize that the accurate of distance between car and the car detects through laser rangefinder's principle, and its is small moreover, and repetition frequency is high, has reduced power pressure. Make A laser pulse width control device for automobile anti -collision system's efficiency brings up to about 10%, moreover the difficult problem that other pump lasers need periodic replacement laser lamp -house has also been solved to the laser of LD laser instrument pipe longe -lived, attenuates the shock of a rotor and enhances the reliability of a system. And the incoming signal through the switch module can realize the regulation of laser pulse width, satisfies different applied environments.
Description
Technical field
This utility model relates to a kind of coded pulse laser beam emitting device, specifically refers to a kind of for automobile collision preventing
The laser pulse width of system controls device.
Background technology
Along with increasing rapidly of vehicle, vehicle accident grows in intensity.Such as: vehicle in car of running at high speed,
When barrier or front vehicles emergency brake occurs suddenly in front, when needing certain reaction due to driver
Between carry out skidding, easily brake occurs not in time, causes the generation of collision accident.
Along with the active safety of automobile is increasingly paid close attention to by people, anti-collision system for automobile arises at the historic moment.Typically
Anti-collision system for automobile in, owing to laser has good concordance, it is widely used in automobile collision preventing system
The sensor of system.
But in prior art, for meeting different applied environments, needing to control laser pulse width, compression swashs
Light impulse length so that laser pulse width scalable.
Utility model content
This utility model purpose there is provided a kind of laser pulse width for anti-collision system for automobile and controls dress
Putting, it uses efficient LD laser instrument, can realize the high-acruracy survey of distance between car and car.
This utility model solves technical problem and adopts the following technical scheme that a kind of swashing for anti-collision system for automobile
Light impulse length controls device, and it includes shell, launches camera lens and laser transmitting system；
Described shell is cuboid, and it has been internally formed accommodation space；Described laser transmitting system is arranged
In the accommodation space of described shell；And be fixed on the wall of described shell；
Described transmitting camera lens is fixed on the left end of described shell, and is fixed on the wall of described shell；Described sharp
The laser that light emission system is launched is focused backward emission by described transmitting camera lens；
Described laser transmitting system include pulse width control module, Laser emission drive module, LD laser instrument,
Communication interface and switch module；Described pulse width control module drives module to be connected to LD by Laser emission
Laser instrument, described communication interface is connected with described pulse width control module by signal；Described switch module and institute
State pulse width control module by signal to connect.
Optionally, described communication interface is RS232 communication interface.
Optionally, described pulse width control module is single-chip microcomputer.
Optionally, the described laser pulse width control device for anti-collision system for automobile also includes cover plate, institute
Stating and offer the first opening on the upper side wall of shell, described cover plate covers described first opening, and is fixed on institute
State on the upper side wall of shell.
This utility model has the advantages that the laser arteries and veins for anti-collision system for automobile of the present utility model
It uses efficient LD laser instrument to rush width control system device, can by the principle of laser ranging realize car and car it
Between the accurate detection of distance, and its volume is little, and repetition rate is high, decreases power supply pressure.Make described use
Laser pulse width in anti-collision system for automobile controls the efficiency of device and brings up to about 10%, and described LD
The life-span of the laser tube of laser instrument is long, and also solving other pump lasers needs to regularly replace LASER Light Source
A difficult problem；Improve the reliability of system；And laser pulse width can be realized by the input signal of switch module
The regulation of degree, meets different applied environments.
Accompanying drawing explanation
Fig. 1 is that the structure for the laser pulse width control device of anti-collision system for automobile of the present utility model is shown
It is intended to；
Fig. 2 is that the structure for the laser pulse width control device of anti-collision system for automobile of the present utility model is shown
It is intended to；
Fig. 3 is the attachment structure schematic diagram of Laser emission drive circuit board of the present utility model and other elements；
In figure, labelling is illustrated as: 1-shell；2-cover plate；3-launches camera lens；4-Laser emission drive circuit board；
5-LD laser instrument.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
Present embodiments provide a kind of laser pulse width for anti-collision system for automobile and control device, including outside
Shell 1, cover plate 2, transmitting camera lens 3 and laser transmitting system；
Described shell is cuboid, and it has been internally formed accommodation space；Open on the upper side wall of described shell
Being provided with the first opening, described laser transmitting system is arranged in described shell by described first opening；Described
Cover plate covers described first opening, and is fixed on described shell.
Described transmitting camera lens is fixed on the left end of described shell, it is possible to be fixed on the sidewall of described shell；
The laser that described laser transmitting system is launched is focused backward emission by described transmitting camera lens.
In the present embodiment, described laser transmitting system includes Laser emission drive circuit board 4 and LD laser instrument 5；
Described Laser emission drive circuit board is fixed in described shell, and it includes high voltage power supply, Laser emission
Drive module and pulse width control module；Described high voltage power supply drives modular circuit to be connected with Laser emission,
Described pulse width control module drives module by signal to be connected, with by described pulse width with described Laser emission
Degree control module controls the pulse width of the laser launched；Described Laser emission drives module and described LD
Laser instrument connects, to drive LD laser instrument described in module drive to launch laser by described Laser emission；This reality
Executing in example, described pulse width control module can be single-chip microcomputer, i.e. by swashing described in described Single-chip Controlling
Light emission drive circuit realizes above-mentioned functions.
In the present embodiment, for realizing the regulation to described laser pulse width, described for anti-collision system for automobile
Laser pulse width control device and also include switch module, described switch module and described pulse width control
Module by signal connects, in the present embodiment, it is preferable that described switch module includes three switches, described three
Switch can realize combinations different in 8, such that it is able to realize launching the laser of pulse widths different in 8.
In the present embodiment, for realizing the regulation of the parameter to described pulse width control module, described for vapour
The laser pulse width of car CAS controls device and also includes communication interface；Described communication interface and described arteries and veins
Rush width control system module by signal to connect, to receive, by described communication interface, the Pulse Width Control letter that host computer sends
Number, thus control the pulse width of described laser.In the present embodiment, it is preferred that described host computer is to calculate
Machine；Described communication interface is RS232 communication interface.
In the present embodiment, the described laser pulse width for anti-collision system for automobile controls device and also includes second
Power supply, described second source provides accessory power supply for Laser emission drive circuit board, and the most described second source can
With to pulse width control module for power supply.
In the present embodiment, described LD laser instrument is positioned at described shell；As illustrated in fig. 1 and 2, it is launched
The direction of laser is to the left；When laser launched by described LD laser instrument, the left side wall of described shell offers the
Two openings, the laser that described LD laser instrument is launched can pass described second opening, by described transmitting mirror
Head is irradiated in housing exterior.
In the present embodiment, described LD laser instrument can be fixed on described Laser emission drive circuit board, is positioned at
The middle of described Laser emission drive circuit board, such that it is able to drive by described Laser emission drive circuit board
Laser launched by dynamic described LD laser instrument.
Laser pulse width for anti-collision system for automobile of the present utility model controls device, and it uses efficiently
LD laser instrument, volume is little, and repetition rate is high, decreases power supply pressure.Make described for anti-collision system for automobile
Laser pulse width controls the efficiency of device and brings up to about 10%, and the laser tube of described LD laser instrument
Life-span is long, and also solving other pump lasers needs to regularly replace a difficult problem for LASER Light Source；Improve system
Reliability.
In the present embodiment, described Laser emission drive circuit board is square, offers respectively in its four angles
Hole, location, and be installed in the accommodation space of described shell by hole, these four location, described accommodation space is i.e.
Constitute the described laser pulse width for anti-collision system for automobile and control the laser instrument electronics structure of device
Chamber；Thus after described laser transmitting system is fixed on described laser instrument electronics structure chamber, described LD
Laser instrument can be luminous according to corresponding pulsed drive.
Described pulse width control unit function is to receive host computer to send pulse control signal, the most described upper
Machine is sent to the pulse control signal of pulse width control unit by communication interface, and according to above-mentioned pulse control
Signal processed controls the glow frequency of LD laser instrument.
In the present embodiment, described Laser emission drive circuit board also includes signal processing module, at described signal
Reason module is connected with described pulse width control module and described host computer signal respectively, is used for producing triggering letter
Number to pulse width control unit, and communicate with host computer.
The sequencing of above example only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than right
It limits；Although this utility model being described in detail with reference to previous embodiment, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make corresponding skill
The essence of art scheme departs from the spirit and scope of this utility model each embodiment technical scheme.
Claims (4)
1. the laser pulse width for anti-collision system for automobile controls device, it is characterised in that outside including
Shell, transmitting camera lens and laser transmitting system；
Described shell is cuboid, and it has been internally formed accommodation space；Described laser transmitting system is arranged
In the accommodation space of described shell；And be fixed on the wall of described shell；
Described transmitting camera lens is fixed on the left end of described shell, and is fixed on the wall of described shell；Described sharp
The laser that light emission system is launched is focused backward emission by described transmitting camera lens；
Described laser transmitting system include pulse width control module, Laser emission drive module, LD laser instrument,
Communication interface and switch module；Described pulse width control module drives module to be connected to LD by Laser emission
Laser instrument, described communication interface is connected with described pulse width control module by signal；Described switch module and institute
State pulse width control module by signal to connect.
Laser pulse width for anti-collision system for automobile the most according to claim 1 controls device, its
Being characterised by, described communication interface is RS232 communication interface.
Laser pulse width for anti-collision system for automobile the most according to claim 2 controls device, its
Being characterised by, described pulse width control module is single-chip microcomputer.
Laser pulse width for anti-collision system for automobile the most according to claim 3 controls device, its
Being characterised by, also include cover plate, the upper side wall of described shell offers the first opening, and described cover plate covers
Described first opening, and be fixed on the upper side wall of described shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067470.4U CN205539450U (en) | 2016-01-22 | 2016-01-22 | A laser pulse width control device for automobile anti -collision system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067470.4U CN205539450U (en) | 2016-01-22 | 2016-01-22 | A laser pulse width control device for automobile anti -collision system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539450U true CN205539450U (en) | 2016-08-31 |
Family
ID=56769245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620067470.4U Expired - Fee Related CN205539450U (en) | 2016-01-22 | 2016-01-22 | A laser pulse width control device for automobile anti -collision system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445506A (en) * | 2018-05-11 | 2018-08-24 | 北醒（北京）光子科技有限公司 | A kind of driving radiating circuit, laser radar and measurement method |
-
2016
- 2016-01-22 CN CN201620067470.4U patent/CN205539450U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445506A (en) * | 2018-05-11 | 2018-08-24 | 北醒（北京）光子科技有限公司 | A kind of driving radiating circuit, laser radar and measurement method |
| CN108445506B (en) * | 2018-05-11 | 2023-11-03 | 北醒（北京）光子科技有限公司 | Measuring method for improving fog permeability of laser radar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |