CN107748523A - A kind of laser warning control system - Google Patents
A kind of laser warning control system Download PDFInfo
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- CN107748523A CN107748523A CN201711133566.1A CN201711133566A CN107748523A CN 107748523 A CN107748523 A CN 107748523A CN 201711133566 A CN201711133566 A CN 201711133566A CN 107748523 A CN107748523 A CN 107748523A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Semiconductor Lasers (AREA)
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Abstract
Embodiments of the invention provide a kind of laser warning control system, are related to control technology field, have strong antijamming capability using the laser warning device of the control system, and false alarm rate is low, the characteristics of fast response time.A kind of laser warning control system includes：Photodetector, current-to-voltage converting circuit, filter circuit, amplifying circuit, voltage comparator circuit, shaping circuit, control circuit, warning circuit and display.Current-to-voltage converting circuit includes：First operational amplifier, multichannel multiplexer analog switch, first resistor, the second resistance of multiple different resistances；Second end of the negative-phase input connection second resistance of the first operational amplifier, output end are connected with the feedback end of multichannel multiplexer analog switch, the input of filter circuit；Multiple output ends of multichannel multiplexer analog switch correspond with the second end of multiple first resistors to be connected.The present invention is applicable the making of laser warning control system.
Description
Technical field
The present invention relates to control technology field, more particularly to a kind of laser warning control system.
Background technology
Non-imaged laser warning device based on spectral matching factor mode, visual field is split by photodetector, so as to obtain
The attacking direction of laser；The non-imaged laser warning device has the advantages that production cost is low, technique is simple, field range is big,
It is widely applied in military field.
The factor for influenceing non-imaged laser warning device performance has a lot, wherein, control system occupies critical role.How
It is always the difficult point and focus studied to design more preferable control system.
The content of the invention
Embodiments of the invention provide a kind of laser warning control system, have using the laser warning device of the control system
There is strong antijamming capability, false alarm rate is low, the characteristics of fast response time.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
A kind of laser warning control system is provided, applied to laser warning device, the laser warning control system includes：Photoelectricity
Detector, current-to-voltage converting circuit, filter circuit, amplifying circuit, voltage comparator circuit, shaping circuit, control circuit, alarm
Circuit and display.
The output end of the photodetector connects the input of the current-to-voltage converting circuit, and the Current Voltage turns
The output end for changing circuit connects the input of the filter circuit；The input of the amplifying circuit connects the filter circuit
Output end, the output end of the amplifying circuit connect the input of the voltage comparator circuit, the voltage comparator circuit it is defeated
Go out the input that end connects the shaping circuit；The output end of the shaping circuit connects the input of the control circuit；Institute
The first control terminal for stating control circuit connects the warning circuit；Second control terminal of the control circuit connects the display
Device.
The current-to-voltage converting circuit includes：It is first operational amplifier, multichannel multiplexer analog switch, multiple
First resistor, the second resistance of different resistances.
The negative-phase input of first operational amplifier connects the second end of the second resistance, and first computing is put
The output end of big device is connected with the feedback end of the multichannel multiplexer analog switch, the input of the filter circuit；
Second end of multiple output ends of the multichannel multiplexer analog switch and multiple first resistors corresponds phase
Even；Multiple control signals of the multichannel multiplexer analog switch are used for Rreceive output control signal, to cause pair
The output end output signal answered；The first end of the first end of the second resistance and the first resistor, the photodetector
Output end be connected.
Optionally, the model AD823 of first operational amplifier.
Optionally, the multichannel multiplexer analog switch is four-way multiplexer analog switch.
Optionally, the first output end of the four-way multiplexer analog switch, the second output end, the 3rd output end
Resistance with the corresponding first resistor being connected of the 4th output end is respectively 10K Ω, 1K Ω, 100 Ω and 1 Ω, and described second
The resistance of resistance is 1K Ω.
Optionally, the filter circuit includes：3rd resistor, the 4th resistance, the first electric capacity and the second electric capacity.
The first end of first electric capacity connects the output end of the current-to-voltage converting circuit；The of the 3rd resistor
One end is connected with the second end of first electric capacity, the first end of the 4th resistance, the second end ground connection of the 3rd resistor；It is described
Second end of the 4th resistance is connected with the first end of second electric capacity, the input of the amplifying circuit；Second electric capacity
The second end ground connection.
Optionally, the amplifying circuit includes：Second operational amplifier, the 5th resistance, the 6th resistance and the 3rd electric capacity.
Second end of the negative-phase input of second operational amplifier and the 5th resistance, the first end of the 6th resistance,
The first end of three electric capacity is connected, the positive input end grounding of second operational amplifier, second operational amplifier it is defeated
Go out end with the second end, the second end of the 3rd electric capacity, the input of the voltage comparator circuit of the 6th resistance to be connected；
The first end of 5th resistance connects the output end of the filter circuit.
Optionally, the voltage comparator circuit includes：MAX9203 comparators.
Optionally, the shaping circuit includes：Trigger and photoisolator, the trigger input connection described in
The output end of voltage comparator circuit, the output end of the trigger connect the input of the photoisolator, the photoelectricity every
Output end from device connects the control circuit.
Optionally, the control circuit includes the first control chip and the second control chip；
First control chip is connected with the shaping circuit, second control chip；Second control chip and institute
State warning circuit, the display is connected.
Optionally, the model STM32F407ZGT6 of first control chip, the model of second control chip
STM32F103VDT6。
The embodiment provides a kind of laser warning control system, applied to laser warning device, the control
System includes：Photodetector, current-to-voltage converting circuit, filter circuit, amplifying circuit, voltage comparator circuit, shaping circuit,
Control circuit, warning circuit and display.
The output end of the photodetector connects the input of the current-to-voltage converting circuit, and the Current Voltage turns
The output end for changing circuit connects the input of the filter circuit；The input of the amplifying circuit connects the filter circuit
Output end, the output end of the amplifying circuit connect the input of the voltage comparator circuit, the voltage comparator circuit it is defeated
Go out the input that end connects the shaping circuit；The output end of the shaping circuit connects the input of the control circuit；Institute
The first control terminal for stating control circuit connects the warning circuit；Second control terminal of the control circuit connects the display
Device.
The current-to-voltage converting circuit includes：It is first operational amplifier, multichannel multiplexer analog switch, multiple
First resistor, the second resistance of different resistances.The negative-phase input of first operational amplifier connects the second resistance
Second end, it is the feedback end of the output end of first operational amplifier and the multichannel multiplexer analog switch, described
The input of filter circuit is connected；Multiple output ends of the multichannel multiplexer analog switch and multiple first electricity
Second end of resistance, which corresponds, to be connected；Multiple control signals of the multichannel multiplexer analog switch are defeated for receiving
Go out control signal, to cause corresponding output end output signal；The of the first end of the second resistance and the first resistor
One end, the output end of the photodetector are connected.There is strong antijamming capability using the laser warning device of the control system,
False alarm rate is low, the characteristics of fast response time.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of laser warning apparatus control system provided in an embodiment of the present invention；
Fig. 2 is a kind of current-to-voltage converting circuit schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of filter circuit schematic diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of amplifying circuit schematic diagram provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole 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 creative work is not made
Embodiment, belong to the scope of protection of the invention.
It should be noted that the first end of the resistance occurred in the present invention, electric capacity, the second end are for only for ease of description electricity
The annexation on road, it is not the restriction of the structure to resistance, electric capacity.In description herein, if resistance or electric capacity are horizontal
Set, then first end refers to the left side connection end of resistance or electric capacity, and the second end refers to the right side connection end of resistance or electric capacity；It is if electric
Resistance or electric capacity are to be vertically arranged, then first end refers to the upside connection end of resistance or electric capacity, and the second end refers to resistance or electric capacity
Downside connection end.The embodiment of the present invention and accompanying drawing illustrate as example.
The embodiments of the invention provide a kind of laser warning control system, applied to laser warning device, with reference to the institute of figure 1
Show, the laser warning control system includes：Photodetector 1, current-to-voltage converting circuit 2, filter circuit 3, amplifying circuit 4,
Voltage comparator circuit 5, shaping circuit 6, control circuit 7, warning circuit 8 and display 9.
The input of the output end connection current-to-voltage converting circuit 2 of photodetector 1, current-to-voltage converting circuit 2
Output end connects the input of filter circuit 3；The output end of the input connection filter circuit 3 of amplifying circuit 4, amplifying circuit 4
Output end connection voltage comparator circuit 5 input, voltage comparator circuit 5 output end connection shaping circuit 6 input；
The input of the output end connection control circuit 7 of shaping circuit 6；The first control terminal connection warning circuit 8 of control circuit 7；Control
The second control terminal connection display 9 of circuit 7 processed.
Above-mentioned warning circuit can include：Alarm lamp, voice guard and smoke alarm etc..Aforementioned display device can be
Liquid crystal display, OLED display etc., are not specifically limited here.
Current-to-voltage converting circuit includes：First operational amplifier, multichannel multiplexer analog switch, multiple differences
First resistor, the second resistance of resistance.
Second end of the negative-phase input connection second resistance of the first operational amplifier, the output end of the first operational amplifier
The input of feedback end, filter circuit with multichannel multiplexer analog switch is connected；Multichannel multiplexer is simulated
Multiple output ends of switch correspond with the second end of multiple first resistors to be connected；Multichannel multiplexer analog switch
Multiple control signals are used for Rreceive output control signal, to cause corresponding output end output signal；The first of second resistance
End is connected with the first end of first resistor, the output end of photodetector.
Here do not limited for the specific port number and model of multichannel multiplexer analog switch, can be according to reality
Border situation determines.
Here the output control signal received for multiple control signals of multichannel multiplexer analog switch
Producing method does not limit；Example, the output control signal can be sent by above-mentioned control circuit, and above-mentioned control chip can
To be reduced to the laser signal after amplifying circuit amplifies, multiplexed according to the size of the laser signal to multichannel
The control signal of device analog switch sends output control signal.
In Military Application, continuous laser and pulse laser are generally divided into attack laser.Continuous laser refers to power output
Invariable laser, such as：Surmounted_laser beam.Pulse laser refers to the laser every the certain pulsewidth of certain time output and energy,
Peak power and mean power be present.
What photodetector responded after laser signal is received is electric current.In military field, photodetector receives
To after pulse laser, the performance number that its surface receives can be from uW（Microwatt）Level arrives W（Watt）Level, caused current value is from can be from
uA（Microampere）Level arrives A（Peace）Level, i.e., dynamic range is very big, and current signal value is also very big.Therefore, turn by laser current signal
When changing laser voltage signal, if from same multiplication factor, easily there is signal saturated phenomenon, influence conversion effect.Will
Multichannel multiplexer analog switch, the first resistor of multiple different resistances, second resistance and the first operational amplifier combine
Get up, different multiplication factors can be selected according to signal magnitude, so as to prevent signal saturated phenomenon, improves circuit
Energy and conversion effect.Above-mentioned laser warning control system is for the better of the detection of pulsed laser signal.Using the control
The laser warning device of system has strong antijamming capability, and false alarm rate is low, the characteristics of fast response time.
Optionally, multichannel multiplexer analog switch can be four-way multiplexer analog switch, four-way
The model of multiplexer analog switch can be ADG704.Optionally, the first of four-way multiplexer analog switch is defeated
It is respectively 10K Ω, 1K to go out end, the second output end, the 3rd output end and the resistance of the corresponding first resistor being connected of the 4th output end
Ω, 100 Ω and 1 Ω, the resistance of second resistance is 1K Ω.Optionally, the model AD823 of above-mentioned first operational amplifier.
Below by taking model ADG704 four-way multiplexer analog switch as an example, Current Voltage conversion electricity is described in detail
The structure on road.
With reference to shown in figure 2, current-to-voltage converting circuit 2 includes：First operational amplifier 21, four-way multiplexer mould
Intend switch 22, the first resistor R1 of multiple different resistances, second resistance R2.
First operational amplifier 21 negative-phase input connection second resistance the second end, the first operational amplifier 21 it is defeated
Go out end and the feedback end D of four-way multiplexer analog switch 22（Pin 8）, filter circuit 3 input be connected；Four-way
Four output end S1-S4 of multiplexer analog switch 22 and four resistances are respectively 10K Ω, 1K Ω, 100 Ω, 1 Ω
First resistor R1 the second end, which corresponds, to be connected；Two control signal A0 of four-way multiplexer analog switch 22,
A1 is used for Rreceive output control signal, to cause corresponding output end output signal；Second resistance R2 first end and the first electricity
Resistance R1 first end, the output end of photodetector 1 is connected.
Certainly, four-way multiplexer analog switch 22 also includes the first power end VDD, ground terminal GND, second source end
EN.For stabilized supply voltage, one 0.1 μ F of the connection electric capacity at the first power end VDD.First operational amplifier 21 also wraps
Two power ends are included, connection+5V and -5V power supply, equally, for stabilized supply voltage, connects respectively in two power ends respectively
Connect 0.1 μ F electric capacity.In order to further improve the stability of circuit, in the output end and second of the first operational amplifier 21
2.2nF electric capacity is connected between resistance R2 input, the branch road and branch road where four-way multiplexer analog switch
It is parallel-connection structure.
Optionally, with reference to shown in figure 3, above-mentioned filter circuit 3 includes：3rd resistor R3, the 4th resistance R4, the first electric capacity C1
With the second electric capacity C2.
The output end of first electric capacity C1 first end connection current-to-voltage converting circuit 2；3rd resistor R3 first end with
First electric capacity C1 the second end, the 4th resistance R4 first end are connected, 3rd resistor R3 the second end ground connection；4th resistance R4's
Second end is connected with the second electric capacity C2 first end, the input of amplifying circuit 4；Second electric capacity C2 the second end ground connection.
In the laser warning control system, the laser pulse signal that photodetector receives is very faint, in order to mitigate too
Influence of the sun as slow changing light, sets above-mentioned filter circuit between current-to-voltage converting circuit and amplifying circuit.Above-mentioned filter
Wave circuit is passive filtering, can further reduce control system volume, be advantageous to the miniaturization of laser warning control system.
In above-mentioned filter circuit, the parameter for the pulse laser that the size of resistance and electric capacity can gather as needed determines.
Example, if above-mentioned laser warning control system needs to gather 20ns pulse laser, optionally, and with reference to shown in figure 3, the 3rd
Resistance R3 and the 4th resistance R4 resistance are respectively 15 K Ω, 25 K Ω, and the first electric capacity C1 and the second electric capacity C2 capacitance are equal
For 0.1 μ F.
Optionally, with reference to shown in figure 4, above-mentioned amplifying circuit 4 includes：Second operational amplifier 41, the 5th resistance R5, the 6th
Resistance R6 and the 3rd electric capacity C3.The negative-phase input of second operational amplifier 41 and the 5th resistance R5 the second end, the 6th resistance
R6 first end, the 3rd electric capacity C3 first end are connected, and the positive input end grounding of the second operational amplifier 41, the second computing is put
The output end of big device 41 and the 6th resistance R6 the second end, the 3rd electric capacity C3 the second end, the input phase of voltage comparator circuit 5
Even；The output end of 5th resistance R5 first end connection filter circuit 3.
Optionally, with reference to shown in figure 4, the model AD8072ARM of the second operational amplifier 41.The operation amplifier of the model
Device has the characteristics that：Power use ± 5V；Electric current is 3.5mA during low-power consumption；The lowest power consumption of chip is 0.6W；Normal work
Temperature range is（- 40 °C ,+85 °C）.
Optionally, in order to increase application, with reference to shown in figure 4, above-mentioned 6th resistance R6 is adjustable resistance.Above-mentioned 5th
Resistance R5 resistance is that 1K Ω, the 6th resistance R6 resistance are 5K Ω, and the 3rd electric capacity C3 capacitance is 10pF, amplification now
Multiple is R6/ R5=5.In actual applications, the resistance of R6 access circuits can according to the multiplication factor being actually needed, be adjusted.
Optionally, above-mentioned voltage comparator circuit includes：MAX9203 comparators.The operating temperature model of the MAX9203 comparators
Enclose for（- 40 °C ,+85 °C）, normal working voltage is in 4.5V-5.5V, and input bias current representative value is 50nA, output voltage
Rise time is 7ns, output high level voltage 3V-3.5V, and output low level voltage is less than 0.4V.
The laser signal that amplifying circuit exports can be converted to by height by above-mentioned voltage comparator circuit（It is or low）TTL electricity
Flat, anti-locking system is advantageous to the further processing of subsequent control circuit by noise false triggering.
Optionally, above-mentioned shaping circuit includes：Trigger and photoisolator, trigger input connection voltage ratio compared with
The output end of circuit, the input of the output end connection photoisolator of trigger, the output end connection control of photoisolator
Circuit.
Because the pulse width of the laser signal of voltage comparator circuit output is narrower（Below 1 μ s）, it is unfavorable for follow-up signal
Processing, can be by above-mentioned laser signal broadening to 20 μ s or so by above-mentioned trigger.Meanwhile it will be simulated using photoisolator
Circuit separates with digital circuit, so that it is guaranteed that the signal between logic circuit and analog circuit will not interfere.
Optionally, the model of above-mentioned trigger can be 54LS123, and the model of above-mentioned photoisolator can be
TLP421。
Optionally, for expanded application scope, there is provided more pin functions, above-mentioned control circuit can include the first control
Coremaking piece and the second control chip；First control chip is connected with shaping circuit, the second control chip；Second control chip and report
Alert circuit, display are connected.
Optionally, the model of above-mentioned first control chip can be STM32F407ZGT6, the type of above-mentioned second control chip
Number can be STM32F103VDT6.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of laser warning control system, applied to laser warning device, it is characterised in that the control system includes：Light
Electric explorer, current-to-voltage converting circuit, filter circuit, amplifying circuit, voltage comparator circuit, shaping circuit, control circuit, report
Alert circuit and display；
The output end of the photodetector connects the input of the current-to-voltage converting circuit, the Current Voltage conversion electricity
The output end on road connects the input of the filter circuit；The input of the amplifying circuit connects the output of the filter circuit
End, the output end of the amplifying circuit connect the input of the voltage comparator circuit, the output end of the voltage comparator circuit
Connect the input of the shaping circuit；The output end of the shaping circuit connects the input of the control circuit；The control
First control terminal of circuit processed connects the warning circuit；Second control terminal of the control circuit connects the display；
The current-to-voltage converting circuit includes：First operational amplifier, multichannel multiplexer analog switch, multiple differences
First resistor, the second resistance of resistance；
The negative-phase input of first operational amplifier connects the second end of the second resistance, first operational amplifier
Output end be connected with the feedback end of the multichannel multiplexer analog switch, the input of the filter circuit；It is described
Multiple output ends of multichannel multiplexer analog switch correspond with the second end of multiple first resistors to be connected；Institute
The multiple control signals for stating multichannel multiplexer analog switch are used for Rreceive output control signal, corresponding defeated to cause
Go out to hold output signal；The output of the first end of the second resistance and the first end, the photodetector of the first resistor
End is connected.
2. laser warning control system according to claim 1, it is characterised in that the model of first operational amplifier
For AD823.
3. laser warning control system according to claim 1, it is characterised in that the multichannel multiplexer simulation
Switch as four-way multiplexer analog switch.
4. laser warning control system according to claim 3, it is characterised in that the four-way multiplexer simulation
The first output end, the second output end, the 3rd output end of switch correspond to the resistance for the first resistor being connected with the 4th output end
Value is respectively 10K Ω, 1K Ω, 100 Ω and 1 Ω, and the resistance of the second resistance is 1K Ω.
5. laser warning control system according to claim 1, it is characterised in that the filter circuit includes：3rd electricity
Resistance, the 4th resistance, the first electric capacity and the second electric capacity；
The first end of first electric capacity connects the output end of the current-to-voltage converting circuit；The first end of the 3rd resistor
The first end at the second end, the 4th resistance with first electric capacity is connected, the second end ground connection of the 3rd resistor；Described 4th
Second end of resistance is connected with the first end of second electric capacity, the input of the amplifying circuit；The of second electric capacity
Two ends are grounded.
6. according to the laser warning control system described in claim any one of 1-5, it is characterised in that the amplifying circuit bag
Include：Second operational amplifier, the 5th resistance, the 6th resistance and the 3rd electric capacity；
The negative-phase input of second operational amplifier and the second end of the 5th resistance, the first end of the 6th resistance, the 3rd electricity
The first end of appearance is connected, the positive input end grounding of second operational amplifier, the output end of second operational amplifier
It is connected with the second end, the second end of the 3rd electric capacity, the input of the voltage comparator circuit of the 6th resistance；It is described
The first end of 5th resistance connects the output end of the filter circuit.
7. laser warning control system according to claim 1, it is characterised in that the voltage comparator circuit includes：
MAX9203 comparators.
8. laser warning control system according to claim 1, it is characterised in that the shaping circuit includes：Trigger
And photoisolator, the input of the trigger connect the output end of the voltage comparator circuit, the output of the trigger
End connects the input of the photoisolator, and the output end of the photoisolator connects the control circuit.
9. laser warning control system according to claim 1, it is characterised in that the control circuit includes the first control
Chip and the second control chip；
First control chip is connected with the shaping circuit, second control chip；Second control chip and institute
State warning circuit, the display is connected.
10. laser warning control system according to claim 9, it is characterised in that the model of first control chip
For STM32F407ZGT6, the model STM32F103VDT6 of second control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133566.1A CN107748523A (en) | 2017-11-16 | 2017-11-16 | A kind of laser warning control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133566.1A CN107748523A (en) | 2017-11-16 | 2017-11-16 | A kind of laser warning control system |
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| Publication Number | Publication Date |
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| CN107748523A true CN107748523A (en) | 2018-03-02 |
Family
ID=61251092
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|---|---|---|---|
| CN201711133566.1A Pending CN107748523A (en) | 2017-11-16 | 2017-11-16 | A kind of laser warning control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579623A (en) * | 2019-10-28 | 2019-12-17 | 广州极飞科技有限公司 | Wind parameter measuring device, method and system |
| CN110926607A (en) * | 2019-12-09 | 2020-03-27 | 深圳市杰普特光电股份有限公司 | Laser detection alarm system and control method |
| CN112994633A (en) * | 2021-02-25 | 2021-06-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Photoelectric induction circuit and device for wind tunnel ballistic target free flight model detection |
-
2017
- 2017-11-16 CN CN201711133566.1A patent/CN107748523A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579623A (en) * | 2019-10-28 | 2019-12-17 | 广州极飞科技有限公司 | Wind parameter measuring device, method and system |
| CN110926607A (en) * | 2019-12-09 | 2020-03-27 | 深圳市杰普特光电股份有限公司 | Laser detection alarm system and control method |
| CN112994633A (en) * | 2021-02-25 | 2021-06-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Photoelectric induction circuit and device for wind tunnel ballistic target free flight model detection |
| CN112994633B (en) * | 2021-02-25 | 2022-06-03 | 中国空气动力研究与发展中心超高速空气动力研究所 | Photoelectric induction circuit and device for wind tunnel ballistic target free flight model detection |
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