CN110109492A - Laser transmitting system and its control method and device - Google Patents
Laser transmitting system and its control method and device Download PDFInfo
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- CN110109492A CN110109492A CN201910218865.8A CN201910218865A CN110109492A CN 110109492 A CN110109492 A CN 110109492A CN 201910218865 A CN201910218865 A CN 201910218865A CN 110109492 A CN110109492 A CN 110109492A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- General Physics & Mathematics (AREA)
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- Automation & Control Theory (AREA)
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Abstract
The present invention relates to a kind of laser transmitting system and its control method and device, the laser transmitting system includes: laser emitter, for emitting laser；Diaphragm, the diaphragm is mounted on the corresponding laser optical path of the laser emitter, for being adjusted to laser；Temperature sensor is detected for the temperature to the diaphragm, obtains the Current Temperatures of the diaphragm；Controller, for, with except wet temp generates temperature adjustment instruction, sending temperature adjustment instruction to temperature regulator according to the Current Temperatures；The temperature regulator, for the diaphragm to be heated or cooled down according to the temperature adjustment instruction, until the Current Temperatures of the diaphragm, which meet, removes wet temp, to dehumidify to the diaphragm.The service efficiency of laser transmitting system can be improved in the above method.
Description
Technical field
The present invention relates to laser fields, more particularly to laser transmitting system and its control method and device.
Background technique
With the development of science and technology, people daily life and production in be commonly used laser equipment, such as using swash
Light is watched movie, and carries out detection of obstacles etc. using laser.In laser equipment work, laser emitter can emit to object
Then the reflected signal of slave object received is compared by laser signal with transmitting signal, obtain target has
Close information, such as target range, orientation, height, speed, posture and shape parameter, thus target is detected, track and
Identification.The laser energy loss that current laser aid issues is big, and direction of laser propagation often also is offset target direction, and laser makes
Use low efficiency.
Summary of the invention
Based on this, it is necessary to for the low problem of above-mentioned laser service efficiency, provide a kind of laser transmitting system and its control
Method and apparatus processed.
A kind of laser transmitting system, the laser transmitting system include:
Laser emitter, for emitting laser；
Diaphragm, the diaphragm are mounted on the corresponding laser optical path of the laser emitter, for carrying out to laser
Adjustment；
Temperature sensor is detected for the temperature to the diaphragm, obtains the Current Temperatures of the diaphragm；
Controller, for, with except wet temp generates temperature adjustment instruction, being sent out to temperature regulator according to the Current Temperatures
Send temperature adjustment instruction；
The temperature regulator, for the diaphragm to be heated or is cooled down according to the temperature adjustment instruction,
Until the Current Temperatures of the diaphragm, which meet, removes wet temp, to dehumidify to the diaphragm.
In some embodiments, the controller is used for:
By the Current Temperatures of the diaphragm with except wet temp compares, comparing result is obtained；
When the Current Temperatures that the comparing result is the diaphragm are less than except wet temp, heating instructions are generated.
In some embodiments, the controller is also used to obtain existing dew point temperature, by existing dew point temperature and in advance
If temperature value is added, obtain described except wet temp.
In some embodiments, the temperature regulator and/or the temperature sensor are installed in the diaphragm, and
Outside laser optical path range.
A kind of control method of above-mentioned laser transmitting system, which comprises
The temperature of diaphragm on laser transmitting system is detected, the Current Temperatures of the diaphragm are obtained；
Temperature adjustment instruction is generated with wet temp is removed according to the Current Temperatures；
Temperature adjustment instruction is sent to temperature regulator, so that the temperature regulator is according to the temperature adjustment instruction
The diaphragm is heated or cooled down, until the Current Temperatures of the diaphragm, which meet, removes wet temp, to the window
Mouth piece dehumidifies.
In some embodiments, described to include: with except wet temp generates temperature adjustment instruction according to the Current Temperatures
By the Current Temperatures of the diaphragm with except wet temp compares, comparing result is obtained；
When the Current Temperatures that the comparing result is the diaphragm are less than except wet temp, temperature heating instructions are generated.
In some embodiments, the method also includes:
Existing dew point temperature is obtained, existing dew point temperature and preset temperature value are added, is obtained described except wet temp.
A kind of control device of above-mentioned laser transmitting system, described device include:
Detection module is detected for the temperature to the diaphragm on laser transmitting system, obtains the diaphragm
Current Temperatures；
Directive generation module, for generating temperature adjustment instruction with wet temp is removed according to the Current Temperatures；
Instruction sending module, for sending temperature adjustment instruction to temperature regulator, so that the temperature regulator root
The diaphragm is heated or cooled down according to the temperature adjustment instruction, until the Current Temperatures satisfaction of the diaphragm is removed
Wet temp, to dehumidify to the diaphragm.
In some embodiments, described instruction generation module includes:
Comparison unit, for the Current Temperatures of the diaphragm with except wet temp compares, to be obtained comparing result；
Instruction generation unit, for when the Current Temperatures that the comparing result is the diaphragm are less than except wet temp,
Generate temperature heating instructions.
In some embodiments, described device further include:
Dehumidify temperature acquisition module, for obtaining existing dew point temperature, by existing dew point temperature and preset temperature value phase
Add, obtains described except wet temp.
Above-mentioned laser transmitting system and its control method and device, diaphragm are arranged on laser optical path, carry out to laser
Adjustment, and detected using temperature of the temperature sensor to diaphragm, the Current Temperatures of diaphragm are obtained, controller can root
According to Current Temperatures with except wet temp generates temperature adjustment instruction, temperature adjustment instruction, temperature regulator are sent to temperature regulator
Diaphragm is heated or cooled down according to temperature adjustment instruction, until the Current Temperatures of diaphragm, which meet, removes wet temp, with
Dehumidify to diaphragm, can keep the drying of diaphragm in this way, reduce reflection to laser of water stain on diaphragm and
Refraction, therefore energy loss can be reduced, the deviation of direction of laser propagation is reduced, laser service efficiency is high.
Detailed description of the invention
Fig. 1 is the architecture diagram of the laser transmitting system provided in one embodiment；
Fig. 2 is the position view of laser radar and diaphragm in one embodiment；
Fig. 3 is the position view of diaphragm, temperature sensor, temperature regulator in one embodiment；
Fig. 4 is the flow chart of the control method of laser transmitting system in one embodiment；
Fig. 5 is the schematic block diagram controlled in one embodiment the temperature of diaphragm；
Fig. 6 is the flow diagram controlled in one embodiment the temperature of diaphragm；
Fig. 7 is the structural block diagram of the control device of laser transmitting system in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the laser transmitting system architecture diagram provided in one embodiment, as shown in Figure 1, laser transmitting system includes
Laser emitter 110, diaphragm 120, temperature sensor 130, controller 140 and temperature regulator 150.Wherein Laser emission
System can be independent equipment, also may be mounted in other equipment, for example, installation is in the car, such as automatic Pilot vapour
Che Shang, for carrying out range measurement.Detecting object refers to the object for needing to be detected using laser.For example, detecting object can be with
It is one piece of barrier.
Laser emitter 110 is for emitting laser.Laser emitter is the device that can emit laser, can be gas and swashs
One of light device, solid state laser and semiconductor laser are a variety of.For example, gas laser can be He-Ne Lasers
Device, solid state laser can be ruby laser.
Diaphragm 120 is mounted on the corresponding laser optical path of laser emitter, for being adjusted to laser.Diaphragm is
A kind of optical glass, laser transmitter projects and/or received laser pass through diaphragm.Diaphragm has the work for filtering out veiling glare
With, by selection different materials or different process diaphragm, the laser transmittance of diaphragm can be controlled, example
Such as, diaphragm can be diaphragm made of selenizing Zinc material, can carry out plated film, can also be without plated film.Diaphragm 120
It is mounted on the corresponding laser optical path of laser emitter and refers to that laser passes through diaphragm.For example, as shown in Fig. 2, diaphragm can be with
It is mounted on the shell of laser radar.
Temperature sensor 130 obtains the Current Temperatures of diaphragm for detecting to the temperature of diaphragm.Wherein, warm
Degree sensor 130, which can be, in real time detects the temperature of diaphragm, is also possible to be carried out according to default regular intervals
Temperature detection, for example, it may be primary every detection in 1 minute.
Controller 140 is used to be sent with except wet temp generates temperature adjustment instruction to temperature regulator according to Current Temperatures
Temperature adjustment instruction.Wherein, the temperature of the steam on diaphragm can be removed except wet temp refers to.Except wet temp can be specifically
Temperature, e.g. 40 degrees Celsius, be also possible to temperature range, such as 40 degrees Celsius to 60 degrees Celsius.
In some embodiments, it except wet temp can be the temperature of preset fixation, can also be carried out according to environment
Dynamic change removes wet temp for example, determining according to environment temperature.It is dehumidified on the basis of environment temperature plus preset temperature
Temperature.Wherein, preset temperature can be obtained according to experiment.For example, preset temperature can be 5 degrees Celsius.
In some embodiments, it is found through experiments that, it, can either be right when being 40 degrees Celsius to 60 degrees Celsius except wet temp
Diaphragm dehumidifies, and the temperature of diaphragm can be made to be unlikely to too high, influences the optical filtering performance of diaphragm.
In some embodiments, temperature adjustment instruction can be heating instructions and be also possible to refrigeration instruction.Work as Current Temperatures
When less than removing wet temp, heating instructions can be generated.When Current Temperatures are greater than except wet temp, refrigeration instruction can be generated.
Temperature regulator 150 is for being heated or being cooled down to diaphragm according to temperature adjustment instruction, until diaphragm
Current Temperatures meet remove wet temp, to dehumidify to diaphragm.Wherein, temperature sensor can continue detection window piece
Temperature can send to temperature regulator when controller, which obtains Current Temperatures, to be met except wet temp and stop heating or stop
The instruction of refrigeration.
In some embodiments, one or more of temperature regulator and temperature sensor can be integrated in diaphragm
In, in this way, can detecte to obtain the temperature of accurate diaphragm, accurately diaphragm can also be heated.For example, warm
Degree adjuster and/or temperature sensor are installed in diaphragm, and are located at outside laser optical path range.As shown in figure 3, between dotted line
Position indicate optical path range when laser passes through diaphragm, temperature regulator and temperature sensor are set to the range of optical path
Outside, in this way, neither influencing the propagation of laser, and temperature control can be carried out to diaphragm.
Wherein, temperature regulator and controller, controller and temperature sensor can also be passed through by circuit connection
The modes such as network, short-range communication mode are communicated, and the embodiment of the present invention does not limit herein.
Above-mentioned laser transmitting system, diaphragm are arranged on laser optical path, are adjusted to laser, and utilize temperature sensing
Device detects the temperature of diaphragm, obtains the Current Temperatures of diaphragm, and controller can be according to Current Temperatures and except damp-warm syndrome
Degree generates temperature adjustment instruction, sends temperature adjustment instruction to temperature regulator, temperature regulator is according to temperature adjustment instruction pair
Diaphragm is heated or is cooled down, until the Current Temperatures of diaphragm, which meet, removes wet temp, to dehumidify to diaphragm, this
Sample can keep the drying on diaphragm surface, reduce the water stain reflection and refraction to laser on diaphragm, therefore can subtract
Few energy loss, improves the consistency of direction of laser propagation, and laser service efficiency is high.For example, when due to laser radar major part
Between work outdoors, diaphragm is easy to be influenced by wet weather, for example the weather such as rainwater, fog can make the surface of diaphragm
Water stain in covering, therefore, the surface temperature by monitoring diaphragm is gone forward side by side trip temperature control, can remove water stain, improves laser
The detectivity of radar.
As shown in figure 4, in one embodiment it is proposed that the control method for the laser transmitting system that a kind of couple of Fig. 1 is provided,
The present embodiment is applied to the controller 140 in above-mentioned Fig. 1 in this way mainly to illustrate.It can specifically include following step
It is rapid:
Step S402 detects the temperature of the diaphragm on laser transmitting system, obtains the Current Temperatures of diaphragm.
Wherein, controller can use temperature sensor and detect to the temperature of the diaphragm on laser transmitting system,
Obtain Current Temperatures.
Step S404 generates temperature adjustment instruction with wet temp is removed according to Current Temperatures.
In some embodiments, comparing result can be obtained by the Current Temperatures of diaphragm with except wet temp compares；
When the Current Temperatures that comparing result is diaphragm are less than except wet temp, temperature heating instructions are generated.When comparing result is window
When the Current Temperatures of piece are greater than except wet temp, temperature refrigeration instruction is generated.
In some embodiments, except wet temp is obtained according to dew-point temperature, available current dew-point temperature will
Existing dew point temperature is added with preset temperature value, is obtained except wet temp, and preset temperature can according to need setting, such as 20 Celsius
Degree.Wherein, dew-point temperature refers to air under the conditions of moisture content and all immovable air pressure, is cooled to temperature when saturation.When
When steam has reached saturation in air, temperature is identical as dew-point temperature；When steam is not up to saturated, temperature is centainly higher than dew point
Temperature.By adding preset temperature on the basis of existing dew point temperature, the temperature that can to dehumidify is greater than dew-point temperature, in turn
So that carrying out temperature temperature adjusted to diaphragm is greater than dew-point temperature, therefore, on diaphragm it is not easy to condense steam.
Step S406 sends temperature adjustment instruction to temperature regulator, so that temperature regulator refers to according to temperature adjustment
Order is heated or is cooled down to diaphragm, until the Current Temperatures of diaphragm, which meet, removes wet temp, to remove to diaphragm
It is wet.
Specifically, after generating temperature adjustment instruction, controller can send temperature adjustment instruction to temperature regulator, so that
It obtains temperature regulator diaphragm is heated or cooled down according to temperature adjustment instruction, until the Current Temperatures of diaphragm meet
Except wet temp, to dehumidify to diaphragm.For example, as shown in Figure 5, Figure 6, temperature sensor can be located at heater and can add
In the diaphragm of heat, controller obtains the temperature of the diaphragm of temperature sensor acquisition, when the temperature collected is less than dehumidifying
It when temperature (set temperature value), then controls heater and diaphragm is heated, during heating, temperature sensor continues
The Current Temperatures of acquisition window piece, if the temperature of the diaphragm collected, which is less than, removes wet temp, controller control heating
Device continues to heat, until the temperature of the diaphragm collected is greater than except wet temp.Certainly, in the Current Temperatures of diaphragm
When greater than set temperature value, it can continue to carry out temperature acquisition, to monitor the Current Temperatures of diaphragm, in the current of diaphragm
Temperature heats diaphragm when dropping to set temperature.In this way, being greater than the temperature of diaphragm except wet temp, window can be kept
The drying of piece reduces the reflection for receiving light, to reduce the loss of light energy.The refraction for receiving light can also be reduced, to protect
The consistency of optical path is demonstrate,proved, the error of laser radar detection distance is reduced.It is controlled by closed loop thermal, diaphragm temperature can also be made
Stablize, improves the consistency of system hardware.
As shown in fig. 7, in one embodiment, a kind of control device of laser transmitting system is provided, the Laser emission
The device of system can integrate in above-mentioned controller 140, can specifically include detection module 702, directive generation module 704
And instruction sending module 706.
Detection module 702 is detected for the temperature to the diaphragm on laser transmitting system, obtains working as diaphragm
Preceding temperature；
Directive generation module 704, for generating temperature adjustment instruction with wet temp is removed according to Current Temperatures；
Instruction sending module 706, for temperature regulator send temperature adjustment instruction so that temperature regulator according to
Temperature adjustment instruction is heated or is cooled down to diaphragm, until the Current Temperatures of diaphragm, which meet, removes wet temp, to window
Mouth piece dehumidifies.
In some embodiments, directive generation module 704 includes:
Comparison unit, for the Current Temperatures of diaphragm with except wet temp compares, to be obtained comparing result；
Instruction generation unit, for generating temperature when the Current Temperatures that comparing result is diaphragm are less than except wet temp
Heating instructions.
In some embodiments, control device further include: dehumidifying temperature acquisition module, for obtaining existing dew point temperature,
Existing dew point temperature and preset temperature value are added, obtained except wet temp.
In one embodiment, a kind of computer equipment, including memory and processor are provided, memory is stored with meter
Calculation machine program, when computer program is executed by processor, so that processor executes the control method of above-mentioned laser transmitting system
Step.The step of control method of laser transmitting system can be the control of the laser transmitting system of above-mentioned each embodiment herein
Step in method.
In one embodiment, a kind of computer readable storage medium is provided, computer program, computer journey are stored with
When sequence is executed by processor, so that the step of processor executes the control method of above-mentioned laser transmitting system.Laser emission herein
The step of control method of system, can be the step in the control method of the laser transmitting system of above-mentioned each embodiment.
Although should be understood that various embodiments of the present invention flow chart in each step according to arrow instruction successively
It has been shown that, but these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein,
There is no stringent sequences to limit for the execution of these steps, these steps can execute in other order.Moreover, each embodiment
In at least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily multiple sub-steps
Completion is executed in synchronization, but can be executed at different times, the execution in these sub-steps or stage sequence is not yet
Necessarily successively carry out, but can be at least part of the sub-step or stage of other steps or other steps in turn
Or it alternately executes.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, computer program can be stored in a non-volatile computer and can be read
In storage medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the application
To any reference of memory, storage, database or other media used in provided each embodiment, may each comprise non-
Volatibility and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM (PROM),
Electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include arbitrary access
Memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, such as static
RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhanced SDRAM
(ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) directly RAM (RDRAM), straight
Connect memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of laser transmitting system, which is characterized in that the laser transmitting system includes:
Laser emitter, for emitting laser；
Diaphragm, the diaphragm is mounted on the corresponding laser optical path of the laser emitter, for being adjusted to laser；
Temperature sensor is detected for the temperature to the diaphragm, obtains the Current Temperatures of the diaphragm；
Controller, for, with except wet temp generates temperature adjustment instruction, sending temperature to temperature regulator according to the Current Temperatures
Spend adjustment instruction；
The temperature regulator, for the diaphragm to be heated or is cooled down according to the temperature adjustment instruction, until
The Current Temperatures of the diaphragm, which meet, removes wet temp, to dehumidify to the diaphragm.
2. the method according to claim 1, wherein the controller is used for:
By the Current Temperatures of the diaphragm with except wet temp compares, comparing result is obtained；
When the Current Temperatures that the comparing result is the diaphragm are less than except wet temp, heating instructions are generated.
3. being incited somebody to action the method according to claim 1, wherein the controller is also used to obtain existing dew point temperature
Existing dew point temperature is added with preset temperature value, is obtained described except wet temp.
4. the method according to claim 1, wherein the temperature regulator and/or temperature sensor peace
Loaded in the diaphragm, and it is located at outside laser optical path range.
5. a kind of control method of laser transmitting system, which is characterized in that the described method includes:
The temperature of diaphragm on laser transmitting system is detected, the Current Temperatures of the diaphragm are obtained；
Temperature adjustment instruction is generated with wet temp is removed according to the Current Temperatures；
Temperature adjustment instruction is sent to temperature regulator, so that the temperature regulator is according to the temperature adjustment instruction to institute
It states diaphragm to be heated or cooled down, until the Current Temperatures of the diaphragm, which meet, removes wet temp, to the diaphragm
It dehumidifies.
6. according to the method described in claim 4, it is characterized in that, described generate temperature with wet temp is removed according to the Current Temperatures
Spending adjustment instruction includes:
By the Current Temperatures of the diaphragm with except wet temp compares, comparing result is obtained；
When the Current Temperatures that the comparing result is the diaphragm are less than except wet temp, temperature heating instructions are generated.
7. the method according to claim 1, wherein the method also includes:
Existing dew point temperature is obtained, existing dew point temperature and preset temperature value are added, is obtained described except wet temp.
8. a kind of control device of laser transmitting system, which is characterized in that described device includes:
Detection module is detected for the temperature to the diaphragm on laser transmitting system, obtains the current of the diaphragm
Temperature；
Directive generation module, for generating temperature adjustment instruction with wet temp is removed according to the Current Temperatures；
Instruction sending module, for sending temperature adjustment instruction to temperature regulator, so that the temperature regulator is according to institute
It states temperature adjustment instruction and the diaphragm is heated or cooled down, until the Current Temperatures of the diaphragm, which meet, removes damp-warm syndrome
Degree, to dehumidify to the diaphragm.
9. device according to claim 4, which is characterized in that described instruction generation module includes:
Comparison unit, for the Current Temperatures of the diaphragm with except wet temp compares, to be obtained comparing result；
Instruction generation unit, for generating when the Current Temperatures that the comparing result is the diaphragm are less than except wet temp
Temperature heating instructions.
10. the apparatus according to claim 1, which is characterized in that described device further include:
Dehumidify temperature acquisition module, for obtaining existing dew point temperature, existing dew point temperature and preset temperature value is added, obtained
Wet temp is removed to described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218865.8A CN110109492A (en) | 2019-03-21 | 2019-03-21 | Laser transmitting system and its control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218865.8A CN110109492A (en) | 2019-03-21 | 2019-03-21 | Laser transmitting system and its control method and device |
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| CN110109492A true CN110109492A (en) | 2019-08-09 |
Family
ID=67484413
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910218865.8A Pending CN110109492A (en) | 2019-03-21 | 2019-03-21 | Laser transmitting system and its control method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114556134A (en) * | 2020-12-29 | 2022-05-27 | 深圳市大疆创新科技有限公司 | Laser radar's electric heating infrared window, laser radar and movable platform |
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Application publication date: 20190809 |