CN108496093A - Laser pulse emission device, laser measuring device for measuring and mobile platform - Google Patents
Laser pulse emission device, laser measuring device for measuring and mobile platform Download PDFInfo
- Publication number
- CN108496093A CN108496093A CN201780004470.7A CN201780004470A CN108496093A CN 108496093 A CN108496093 A CN 108496093A CN 201780004470 A CN201780004470 A CN 201780004470A CN 108496093 A CN108496093 A CN 108496093A
- Authority
- CN
- China
- Prior art keywords
- laser
- emission device
- pulse emission
- driver
- electrically connected
- 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.)
- Pending
Links
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
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
-
- 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
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Semiconductor Lasers (AREA)
Abstract
A kind of laser pulse emission device (100), laser measuring device for measuring and mobile platform, the laser pulse emission device (100) include：Impulse ejection circuit (110) and overvoltage crowbar (130)；The impulse ejection circuit (110) includes laser emitter (111) and driver (113), the first end of the laser emitter (111) is for connecting power supply, second end is electrically connected with the driver (113), and the laser emitter (111) when driver (113) are opened for emitting laser pulse；One end of the overvoltage crowbar (130) is electrically connected with the second end of laser emitter (111); the other end is electrically connected or is grounded with the first end of laser emitter (111), the high voltage transient pulse which generates for reducing laser emitter (111).The laser pulse emission device (100) can effectively reduce the high voltage transient pulse of laser emitter (111) generation.
Description
This patent document disclosure includes material protected by copyright.The copyright is all for copyright holder.Copyright
Owner do not oppose the patent document in the presence of anyone replicates the proce's-verbal of Patent＆Trademark Office and archives or this specially
Profit discloses.
Technical field
The present invention relates to laser ranging technique field more particularly to a kind of laser pulse emission device, laser measuring device for measuring
And mobile platform.
Background technology
In laser pulse emission device, laser emitter generally passes through metal oxide semiconductor field effect tube (Metal-
Oxide-Semiconductor Field-Effect Transistor, MOSFET) it drives.In MOSFET from open state
Switch the moment being in off state, will produce higher transient voltage pulses in the cathode of laser emitter, the transient voltage arteries and veins
Punching may result in laser emitter and be damaged.
Invention content
A kind of laser pulse emission device of offer of the embodiment of the present invention, laser measuring device for measuring and mobile platform, are existed with reducing
The high voltage transient pulse that the cathode of laser emitter generates, prevents laser emitter to be damaged, to improving laser impulse ejection
The reliability and stability of device.
A kind of laser pulse emission device, including impulse ejection circuit and overvoltage crowbar；
The impulse ejection circuit includes laser emitter and driver, and the first end of the laser emitter is for connecting
Power supply, the second end of the laser emitter are electrically connected with the driver, and the laser emitter is used in the driver
Emit laser pulse when unlatching；
One end of the overvoltage crowbar is electrically connected with the second end of the laser emitter, the other end and the laser
The first end of transmitter is electrically connected or ground connection, the high pressure wink that the overvoltage crowbar generates for reducing the laser emitter
State pulse.
A kind of laser measuring device for measuring, including laser pulse emission device, the laser pulse emission device include pulse hair
Transmit-receive radio road and overvoltage crowbar；
The impulse ejection circuit includes laser emitter and driver, and the first end of the laser emitter is for connecting
Power supply, the second end of the laser emitter are electrically connected with the driver, and the laser emitter is used in the driver
Emit laser pulse when unlatching；
One end of the overvoltage crowbar is electrically connected with the second end of the laser emitter, the other end and the laser
The first end of transmitter is electrically connected or ground connection, the high pressure wink that the overvoltage crowbar generates for reducing the laser emitter
State pulse.
A kind of mobile platform, including laser measuring device for measuring and platform body, the laser measuring device for measuring are mounted on described flat
Playscript with stage directions body, the laser measuring device for measuring include laser pulse emission device, and the laser pulse emission device includes impulse ejection
Circuit and overvoltage crowbar；
The impulse ejection circuit includes laser emitter and driver, and the first end of the laser emitter is for connecting
Power supply, the second end of the laser emitter are electrically connected with the driver, and the laser emitter is used in the driver
Emit laser pulse when unlatching；
One end of the overvoltage crowbar is electrically connected with the second end of the laser emitter, the other end and the laser
The first end of transmitter is electrically connected or ground connection, the high pressure wink that the overvoltage crowbar generates for reducing the laser emitter
State pulse.
The laser pulse emission device is by being arranged the overvoltage crowbar, and by the one of the overvoltage crowbar
End is connect with the second end of the laser emitter, and the other end connect or is grounded with the first end of the laser emitter, to
Can the laser emitter second end there are when high voltage transient pulse, the high voltage transient pulse is reduced, prevents from swashing
Optical transmitting set is damaged by high voltage transient pulse, is conducive to the reliability and stability of improving laser impulse starter.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the first structure schematic diagram of the laser pulse emission device of the embodiment of the present invention；
Fig. 2 is the second structural schematic diagram of the laser pulse emission device of the embodiment of the present invention；
Fig. 3 is the third structural schematic diagram of the laser pulse emission device of the embodiment of the present invention；
Fig. 4 is the 4th structural schematic diagram of the laser pulse emission device of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the laser measuring device for measuring of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in an embodiment of the invention, providing a kind of laser pulse emission device 100, including pulse hair
Transmit-receive radio road 110 and overvoltage crowbar 130.
The impulse ejection circuit 110 includes laser emitter 111 and driver 113, and the of the laser emitter 111
For connecting power supply VCC, the second end of the laser emitter 111 is electrically connected with the driver 113 for one end, the laser hair
Emitter 111 when the driver 113 is opened for emitting laser pulse signal.It is appreciated that the driver 113 can wrap
Control signal input Ctrl is included, controls signal for input switch, and the laser is controlled according to the switch control signal
Transmitter 111 is turned on and off.
One end of the overvoltage crowbar 130 is electrically connected with the second end of the laser emitter 111, and the overvoltage is protected
The other end of protection circuit 130 is grounded, and the overvoltage crowbar 130 is used to be switched to closing by unlatching in the driver 113
When, reduce the high voltage transient pulse in the second end generation of the laser emitter 111.
Referring to Fig. 2, in one embodiment, the laser emitter 111 includes laser emitting diode D1, described
Overvoltage crowbar 130 includes overvoltage protection diode D2, and the driver 113 includes driving switch pipe Q1, and the driving is opened
It includes grid g, source electrode s and drain electrode d to close pipe Q1.
The grid g of the driving switch pipe Q1 controls signal for input switch, and the source electrode s of the driving switch pipe Q1 connects
The drain electrode d on ground, the driving switch pipe Q1 is electrically connected with the cathode of the laser emitting diode D1, two pole of the Laser emission
The anode of pipe D1 is for connecting power supply VCC.In the present embodiment, the driving switch pipe Q1 is that N-type metal-oxide-is partly led
Body transistor.
The cathode of the overvoltage protection diode D2 and second end (the i.e. described Laser emission of the laser emitter 111
The cathode of diode D1) electrical connection, the plus earth of the overvoltage protection diode D2.In the present embodiment, the overvoltage is protected
Shield diode is that Zener (Zener) diode or transient voltage inhibit (Transient Voltage Suppressor, TVS)
Diode.
It is appreciated that when the driver 113 is switched to closing by unlatching, i.e., the described driving switch pipe Q1 is switched by conducting
When to end, if the high voltage transient pulse in the cathode generation of the laser emitting diode D1 is more than two pole of the overvoltage protection
The reverse turn-on voltages of pipe D2, then the overvoltage protection diode D2 conductings, the high voltage transient pulse are released into ground, to
The high voltage transient pulse can be reduced, prevent the laser emitting diode D1 from being damaged by high voltage transient pulse.
Referring to Fig. 3, in an embodiment of the invention, providing a kind of laser pulse emission device 300, including pulse hair
Transmit-receive radio road 310 and overvoltage crowbar 330.
The impulse ejection circuit 310 includes laser emitter 311 and driver 313, and the of the laser emitter 311
For connecting power supply VCC, the second end of the laser emitter 311 is electrically connected with the driver 313 for one end, the laser hair
Emitter 311 when the driver 313 is opened for emitting laser pulse.It is appreciated that the driver 313 may include control
Signal input part Ctrl processed controls signal for input switch, and controls the Laser emission according to the switch control signal
Device 311 is turned on and off.
One end of the overvoltage crowbar 330 is electrically connected with the second end of the laser emitter 311, and the overvoltage is protected
The other end of protection circuit 330 is electrically connected with the first end of the laser emitter 311, and the overvoltage crowbar 130 is used for
When the driver 313 is switched to closing by unlatching, the high voltage transient in the second end generation of the laser emitter 311 is reduced
Pulse.
Referring to Fig. 4, in one embodiment, the laser emitter 311 includes laser emitting diode D1, described
Overvoltage crowbar 330 includes overvoltage protection diode D2, and the driver 313 includes driving switch pipe Q1, and the driving is opened
It includes grid g, source electrode s and drain electrode d to close pipe Q1.
The grid g of the driving switch pipe Q1 controls signal for input switch, and the source electrode s of the driving switch pipe Q1 connects
The drain electrode d on ground, the driving switch pipe Q1 is electrically connected with the cathode of the laser emitting diode D1, two pole of the Laser emission
The anode of pipe D1 is for connecting power supply VCC.In the present embodiment, the driving switch pipe Q1 is that N-type metal-oxide-is partly led
Body transistor.
Second end (i.e. described two pole of Laser emission of the anode and the laser emitter of the overvoltage protection diode D2
The cathode of pipe D1) electrical connection, the cathode of the overvoltage protection diode D2 and the first end of the laser emitter are (i.e. described to swash
The anode of light emitting diode D1) electrical connection.
It is appreciated that when the driver 313 is switched to closing by unlatching, i.e., the described driving switch pipe Q1 is switched by conducting
When to end, if the high voltage transient pulse in the cathode generation of the laser emitting diode D1 is more than two pole of the overvoltage protection
The conducting voltage of pipe D2, then the overvoltage protection diode D2 conductings, the high voltage transient pulse are released into power supply VCC, from
And the high voltage transient pulse can be reduced, prevent the laser emitting diode D1 from being damaged by high voltage transient pulse.
Referring to Fig. 5, in an embodiment of the invention, providing a kind of laser measuring device for measuring 500, including microcontroller
510, laser pulse emission device 530 and laser pulse reception device 550, the laser pulse emission device 530 can be figure
1, laser pulse emission device 100 or Fig. 3 shown in Fig. 2, laser pulse emission device 300 shown in Fig. 4, the microcontroller
510 are electrically connected with the control signal input Ctrl of the laser pulse emission device 530, for being the laser pulse emission
Device 530 provides switch control signal.If for example, the laser pulse emission device 530 is Fig. 1, laser pulse shown in Fig. 2
Emitter 100, then the microcontroller 510 and the control signal of the driver 113 of the laser pulse emission device 100 are defeated
Enter Ctrl is held to be electrically connected, for providing switch control signal for driver 113.
In one embodiment, laser measuring device for measuring is for sensing external environmental information, for example, the distance of environmental goals
Information, angle information, Reflection intensity information, velocity information etc..The laser measuring device for measuring 500 can be radar.Specifically, originally
The laser measuring device for measuring of invention embodiment can be applied to mobile platform, and laser measuring device for measuring can be mounted on the platform of mobile platform
Ontology.Mobile platform with laser measuring device for measuring can measure external environment, for example, measuring mobile platform and barrier
Distance carry out two dimension or three-dimensional mapping for the purposes such as avoidance, and to external environment.In some embodiments, mobile flat
Platform includes at least one of unmanned vehicle, automobile and telecar.When laser measuring device for measuring is applied to unmanned vehicle, put down
Playscript with stage directions body is the fuselage of unmanned vehicle.When laser measuring device for measuring is applied to automobile, platform body is the vehicle body of automobile.When sharp
When optical measurement instrument is applied to telecar, platform body is the vehicle body of telecar.
In one embodiment, the laser pulse reception device 550 includes the pulse receiving circuit being sequentially connected electrically
551, amplifying circuit 553, comparison circuit 555 and time-to-digital conversion circuit 557.The pulse receiving circuit 551 is for receiving
Reflected laser pulse signal, and the reflected laser pulse received is converted into voltage pulse signal output.Wherein, the reflection
Laser pulse signal is that the laser pulse signal of the laser pulse emission device 530 transmitting is formed after target object reflects
Laser pulse signal.
For being amplified processing to the voltage pulse signal, the comparison circuit 555 is used for the amplifying circuit 553
The voltage pulse signal is converted into square-wave signal according to default relatively threshold value, the time-to-digital conversion circuit 557 is used for
Measure the temporal information of the hopping edge of the square-wave signal.
The microcontroller 510 and the pulse receiving circuit 551, amplifying circuit 553, comparison circuit 555 and time number
Word conversion circuit 557 is electrically connected, the hopping edge of the square-wave signal for being measured according to the digital conversion circuit 557 when
Between information, calculate the burst length of the reflected laser pulse signal, and then emit according to the laser pulse emission device 530
The burst length of laser pulse signal and the difference in burst length of the reflected laser pulse signal calculate the target object
Distance.Optionally, digital conversion circuit 557 can measure leading edge time information with after along temporal information, Ye Jifang respectively
The temporal information of the lead and trail edge saltus step of wave signal, and calculate reflected laser pulse signal according to two temporal informations
Burst length.
In one embodiment, the laser pulse reception device 550 can also include peak detection circuit 559, use
In the peak value for detecting the reflected laser pulse signal.Due to the leading edge time in the case where signal amplitude is larger, measured
Information is less than normal, and what is measured is rear bigger than normal along temporal information, and optionally, the microcontroller 510 can also be according to the laser arteries and veins
The peak value of signal is rushed to be corrected to the burst length measured.
In one embodiment, the microcontroller 510 is additionally operable to be measured according to the digital conversion circuit 557
The temporal information of the hopping edge of square-wave signal calculates the pulse energy of the reflected laser pulse signal, and according to the pulse
The APD gains of pulse receiving circuit 551 described in energy adjusting.For example, in ambient light than stronger, and optical noise is main noise
When, noise level is reduced by reducing the gain of APD, avoids the comparison circuit 555 by noise false triggering.
In one embodiment, the microcontroller 510 is additionally operable to be measured according to the digital conversion circuit 557
The temporal information of the hopping edge of square-wave signal calculates the pulse energy of the reflected laser pulse signal, and according to the pulse
The comparison threshold value of comparison circuit 555 described in energy adjusting.For example, weaker in ambient light, and when optical noise is suitable with electrical noise, lead to
Raising comparator threshold is crossed, it can be to avoid the comparison circuit 555 by noise false triggering.
In one embodiment, the amplifying circuit 553 can also adjust the amplification electricity according to the pulse energy
The amplification factor on road 553.For example, when the pulse energy is less than predetermined threshold value, keep default amplification factor constant, described
When pulse energy is higher than predetermined threshold value, reduce the amplification factor of the amplifying circuit 553, to prevent the amplifying circuit 553 full
With.
It is appreciated that the structure and function of the laser pulse emission device 530 are referred to Fig. 1, Fig. 2 or Fig. 3, Fig. 4
Associated description in illustrated embodiment, details are not described herein again.
The laser pulse emission device is by being arranged the overvoltage crowbar, and by the one of the overvoltage crowbar
End is connect with the second end of the laser emitter, and the other end connect or is grounded with the first end of the laser emitter, to
Can the laser emitter second end there are when high voltage transient pulse, the high voltage transient pulse is reduced, prevents from swashing
Optical transmitting set is damaged by high voltage transient pulse, is conducive to the reliability and stability of improving laser impulse starter.
It is appreciated that above disclosed is only presently preferred embodiments of the present invention, with this this cannot be limited certainly
The interest field of invention, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to
Equivalent variations made by the claims in the present invention, still belong to the scope covered by the invention.
Claims (12)
1. a kind of laser pulse emission device, which is characterized in that including impulse ejection circuit and overvoltage crowbar；
The impulse ejection circuit includes laser emitter and driver, and the first end of the laser emitter is for connecting electricity
Source, the second end of the laser emitter are electrically connected with the driver, and the laser emitter in the driver for opening
Emit laser pulse when opening；
One end of the overvoltage crowbar is electrically connected with the second end of the laser emitter, the other end and the Laser emission
The first end of device is electrically connected or ground connection, the high voltage transient arteries and veins that the overvoltage crowbar generates for reducing the laser emitter
Punching.
2. laser pulse emission device as described in claim 1, which is characterized in that the overvoltage crowbar includes that overvoltage is protected
Diode is protected, the cathode of the overvoltage protection diode is electrically connected with the second end of the laser emitter, the overvoltage protection
The plus earth of diode.
3. laser pulse emission device as claimed in claim 2, which is characterized in that the driver is switched to closing by opening
When, the overvoltage protection diode conducting.
4. laser pulse emission device as claimed in claim 2, which is characterized in that the overvoltage protection diode is Zener two
Pole pipe or transient voltage inhibit diode.
5. laser pulse emission device as described in claim 1, which is characterized in that the overvoltage crowbar includes that overvoltage is protected
Diode is protected, the anode of the overvoltage protection diode is electrically connected with the second end of the laser emitter, the overvoltage protection
The cathode of diode is electrically connected with the first end of the laser emitter.
6. laser pulse emission device as claimed in claim 5, which is characterized in that the driver is switched to closing by opening
When, the overvoltage protection diode conducting.
7. laser pulse emission device as claimed in any one of claims 1 to 6, which is characterized in that the laser emitter includes
Laser emitting diode, the anode of the laser emitting diode is for connecting power supply, the cathode of the laser emitting diode
It is electrically connected with the driver.
8. laser pulse emission device as claimed in claim 7, which is characterized in that the driver includes driving switch pipe,
The driving switch pipe includes grid, source electrode and drain electrode, and the grid of the driving switch pipe controls signal, institute for input switch
The source electrode ground connection of driving switch pipe is stated, the drain electrode of the driving switch pipe is electrically connected with the cathode of the laser emitting diode.
9. laser pulse emission device as claimed in claim 8, which is characterized in that the driving switch pipe is N-type metal-oxygen
Compound-semiconductor transistor.
10. a kind of laser measuring device for measuring, which is characterized in that including laser pulse emission as described in any one of claim 1 to 9
Device.
11. a kind of mobile platform, which is characterized in that including：
Laser measuring device for measuring according to any one of claims 10；With
Platform body, the laser measuring device for measuring are mounted on the platform body.
12. mobile platform according to claim 11, which is characterized in that the mobile platform includes unmanned vehicle, vapour
At least one of vehicle and telecar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/078659 WO2018176286A1 (en) | 2017-03-29 | 2017-03-29 | Laser pulse transmission device, laser measurement device, and mobile platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108496093A true CN108496093A (en) | 2018-09-04 |
Family
ID=63344793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780004470.7A Pending CN108496093A (en) | 2017-03-29 | 2017-03-29 | Laser pulse emission device, laser measuring device for measuring and mobile platform |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108496093A (en) |
| WO (1) | WO2018176286A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116990819A (en) * | 2023-09-27 | 2023-11-03 | 成都国营锦江机器厂 | Anti-collision radar starting detection protection method, system and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2834098Y (en) * | 2005-03-18 | 2006-11-01 | 陈胜和 | Voltage divider against power surge on laser diode |
| CN1886874A (en) * | 2003-11-28 | 2006-12-27 | 奥斯兰姆奥普托半导体有限责任公司 | Light-emitting semiconductor component comprising a protective diode |
| CN102946049A (en) * | 2012-11-15 | 2013-02-27 | 电子科技大学 | Drive and temperature control circuit of quantum cascade laser |
| CN103227413A (en) * | 2013-04-28 | 2013-07-31 | 中国科学院半导体研究所 | Semiconductor laser device driving circuit |
| CN104714220A (en) * | 2013-12-11 | 2015-06-17 | 重庆爱特光电有限公司 | Laser emitting circuit, laser receiving circuit, distance calculating circuit and equipment thereof |
| US20150229102A1 (en) * | 2014-02-13 | 2015-08-13 | Texas Instruments Incorporated | Method and apparatus for disabling a laser |
| CN106486887A (en) * | 2015-08-29 | 2017-03-08 | 南京理工大学 | A kind of pulse laser emission circuit based on laser diode |
-
2017
- 2017-03-29 CN CN201780004470.7A patent/CN108496093A/en active Pending
- 2017-03-29 WO PCT/CN2017/078659 patent/WO2018176286A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886874A (en) * | 2003-11-28 | 2006-12-27 | 奥斯兰姆奥普托半导体有限责任公司 | Light-emitting semiconductor component comprising a protective diode |
| CN2834098Y (en) * | 2005-03-18 | 2006-11-01 | 陈胜和 | Voltage divider against power surge on laser diode |
| CN102946049A (en) * | 2012-11-15 | 2013-02-27 | 电子科技大学 | Drive and temperature control circuit of quantum cascade laser |
| CN103227413A (en) * | 2013-04-28 | 2013-07-31 | 中国科学院半导体研究所 | Semiconductor laser device driving circuit |
| CN104714220A (en) * | 2013-12-11 | 2015-06-17 | 重庆爱特光电有限公司 | Laser emitting circuit, laser receiving circuit, distance calculating circuit and equipment thereof |
| US20150229102A1 (en) * | 2014-02-13 | 2015-08-13 | Texas Instruments Incorporated | Method and apparatus for disabling a laser |
| CN106486887A (en) * | 2015-08-29 | 2017-03-08 | 南京理工大学 | A kind of pulse laser emission circuit based on laser diode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116990819A (en) * | 2023-09-27 | 2023-11-03 | 成都国营锦江机器厂 | Anti-collision radar starting detection protection method, system and device |
| CN116990819B (en) * | 2023-09-27 | 2023-12-15 | 成都国营锦江机器厂 | Anti-collision radar starting detection protection method, system and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018176286A1 (en) | 2018-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108089201A (en) | Obstacle information acquisition methods, the launching technique of laser pulse and device | |
| US20220299613A1 (en) | Pulse ranging device and method, and automatic cleaning apparatus having same | |
| CN110308456A (en) | It is a kind of for improving the bias adjustment device and laser radar system of detection range | |
| US8115913B2 (en) | Light pulse generator and optical time domain reflectometer using the same | |
| EP2017646A1 (en) | Sensor for detecting moving object with the aid of a ultrabandwidth sounding signal | |
| CN105891844A (en) | Dual mode laser pulse emission control and echo signal processing system | |
| KR20220024177A (en) | Adaptive multi-pulse LIDAR system | |
| CN108496093A (en) | Laser pulse emission device, laser measuring device for measuring and mobile platform | |
| CN102508305A (en) | Ultra wide band radar life detection system and method | |
| CN114252866A (en) | Laser radar detection method and laser radar | |
| CN112731428A (en) | Distance measuring device and active three-dimensional imaging system | |
| CN109932705B (en) | Ultra-wide dynamic range laser echo receiving device and control method thereof | |
| CN105793726A (en) | Receiver with programmable gain for UWB radar | |
| US20110141453A1 (en) | System and Method for Ranging of Targets | |
| US11474216B2 (en) | Single-photon avalanche diode-based time-of-flight sensor with two modes of operation | |
| CN105403892A (en) | Semiconductor laser distance measuring device based on switched capacitor array sampling | |
| CN215005872U (en) | Single photon laser radar system suitable for all-weather work | |
| CN109669187A (en) | A kind of semiconductor pulse laser range finder with adaptation function | |
| CN202256700U (en) | UWB radar life detecting instrument | |
| CN213210475U (en) | Laser receiving system, laser radar system and robot equipment | |
| CN108089192A (en) | The method that range measurement is carried out using laser | |
| CN202486309U (en) | Signal transducer combining ranging and positioning | |
| CN111880162A (en) | High-power laser light source output device | |
| CN114325736A (en) | Detection method and detection system | |
| CN106342242B (en) | High sensitivity laser pickoff |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |
|
| RJ01 | Rejection of invention patent application after publication |